Ventilation valve, transmission and vehicle
By designing a structure with multiple air vents and oil-absorbing components in the vent valve, and utilizing the valve core's state switching and the separation of the oil-absorbing components, the problem of impurity accumulation in the waterproof and breathable membrane is solved, achieving highly efficient breathability and waterproofing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-10
AI Technical Summary
Waterproof and breathable membranes tend to accumulate more impurities, resulting in poor breathability.
A vent valve is designed, comprising a valve housing, a waterproof and breathable membrane, and a valve core. By setting first and second vent holes and an oil suction component, the vent chamber is divided into multiple sub-chambers. By switching between the sealing and opening states of the valve core, the amount of gas passing through the waterproof and breathable membrane is reduced, and the oil suction component reduces the accumulation of impurities.
It improves air permeability, reduces the accumulation of impurities at the waterproof and breathable membrane, enhances waterproofing, and ensures the normal operation of the breathable valve in different environments.
Smart Images
Figure CN223984851U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vent valve technology, and more particularly to a vent valve, a transmission, and a vehicle. Background Technology
[0002] The vent valve is located at the vent of the equipment. The vent valve has a waterproof and breathable membrane, which allows gas inside the equipment to be discharged outside the equipment through the vent valve, and prevents water outside the equipment from easily entering the equipment through the vent valve.
[0003] In related technologies, waterproof and breathable membranes tend to accumulate a lot of impurities, resulting in poor breathability. Utility Model Content
[0004] This application provides a vent valve, a transmission, and a vehicle that can improve venting efficiency.
[0005] In a first aspect, this application provides a breathable valve, which includes a valve housing, a waterproof and breathable membrane, and a valve core. The valve housing forms a breathable cavity, and the inner surface of the breathable cavity has an air inlet, a first air outlet, and a second air outlet. The waterproof and breathable membrane is disposed at the first air outlet. The valve core is disposed at the second air outlet and has a sealed state and an open state. In the sealed state, the valve core seals the second air outlet. In the open state, the second air outlet connects the external space of the breathable cavity with the breathable cavity.
[0006] The vent valve provided in this application has a valve body with a first vent and a second vent. A waterproof and breathable membrane is disposed at the first vent, and the valve core is disposed at the second vent. When the valve core is in the open state, the second vent connects the external space of the vent chamber with the vent chamber, allowing gas to escape. The venting task is jointly undertaken by the first and second vents. The first vent has a smaller airflow, resulting in less air passing through the waterproof and breathable membrane, which helps reduce impurities accumulating on the membrane. When the valve core is in the sealed state, it seals the second vent, making it difficult for water from outside the valve to enter the vent chamber through the second vent. The vent valve has strong waterproof capabilities, and in this case, the venting task is undertaken by the first vent. Switching between the sealed and open states allows the valve core to reduce the amount of air passing through the waterproof and breathable membrane while meeting the requirement of less water entering the vent chamber, thereby reducing impurities accumulating on the membrane and improving venting efficiency. Therefore, the vent valve provided in this application can improve venting efficiency.
[0007] In conjunction with the first aspect, in some possible implementations, the vent valve further includes an oil suction element disposed in the vent chamber, which divides the vent chamber to form a first vent sub-chamber and a second vent sub-chamber. A first vent outlet is located in the first vent sub-chamber, and an inlet and a second vent outlet are located in the second vent sub-chamber.
[0008] In this way, the oil-absorbing component divides the venting chamber, forming a first venting sub-chamber and a second venting sub-chamber. The first vent and the vent are located in the first and second venting sub-chambers, respectively. This requires gas to first enter the second venting sub-chamber through the vent, then pass through the oil-absorbing component into the first venting sub-chamber, and finally exit the venting chamber through the first vent. The amount of oil carried by the gas after passing through the oil-absorbing component is reduced, which helps reduce oil accumulation at the waterproof and breathable membrane, thereby improving venting efficiency. The vent and the second vent are located in the second venting sub-chamber, so that in the open state, gas can be discharged directly through the second vent without passing through the oil-absorbing component. This reduces the burden on the oil-absorbing component, helps reduce oil accumulation on it, and prevents clogging, further improving venting efficiency. Furthermore, the air inlet and the second air outlet are located in the second ventilated sub-cavity, which means that when the air is open, the oil-absorbing component has a smaller obstruction effect on the gas flowing from the air inlet to the second air outlet. This is beneficial in two ways: firstly, it helps to increase the gas flow rate, thereby improving the ventilation efficiency; secondly, it makes the air pressure difference at the second air outlet relatively larger than that at the first air outlet, making it easier for the gas to be discharged through the second air outlet, which means that the amount of gas discharged through the first air outlet is less, which helps to reduce the oil accumulation at the waterproof and breathable membrane, thereby improving the ventilation efficiency.
[0009] In combination with the first aspect and the above-mentioned implementation, in some possible implementations, the inner surface of the vent cavity is provided with a partition, and along the first direction, the first vent and the second vent are respectively located on opposite sides of the partition. Along the first direction, the end faces of the opposite ends of the oil-absorbing member abut against the inner surfaces of the partition and the vent cavity, respectively.
[0010] In this way, the end faces of the oil-absorbing component at both ends abut against the inner surfaces of the partition and the venting cavity, respectively, so that the partition restricts the oil-absorbing component to the position corresponding to the first vent, and the oil-absorbing component is installed with high stability in the venting cavity.
[0011] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the depth direction of the air inlet is perpendicular to the first direction, and the air inlet is arranged opposite to the partition.
[0012] In this way, the partition is positioned opposite to the air inlet, which allows the partition to block the gas entering the breathable cavity through the air inlet, thereby blocking the impurities carried by the gas. This helps to reduce the accumulation of impurities at the waterproof and breathable membrane and improve the breathability efficiency.
[0013] In combination with the first aspect and the above-mentioned implementation, in some possible implementations, the inner circumferential surface of the air inlet is provided with a baffle along the first direction, the number of baffles is two, the two baffles are arranged opposite to each other along the first direction, and the separator covers the gap between the two baffles.
[0014] In this way, the baffles can block the gas, thereby preventing impurities carried by the gas from accumulating at the waterproof and breathable membrane and improving breathability. The separator covers the gap between the two baffles, allowing the separator to effectively block the gas passing through the gap, thus preventing impurities carried by the gas from accumulating at the waterproof and breathable membrane and improving breathability.
[0015] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the vent valve also includes an elastic element. The elastic element is disposed between the valve core and the valve shell. Along the depth direction of the second vent hole, the elastic element applies an elastic force to the valve core. The elastic force is directed towards the outside of the vent cavity, so that the valve core is in the open state.
[0016] In this way, when the vent valve is not submerged in water, the valve core remains open under the action of elastic force, allowing air to pass through the second vent. When the vent valve is submerged in water, the water outside the vent valve can exert a force on the valve core, which overcomes the elastic force and causes the vent valve to switch to a sealed state. Therefore, the valve core can automatically switch between the open and sealed states when the external environment changes, resulting in lower control costs.
[0017] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the elastic element is disposed within the vent cavity.
[0018] By placing the elastic element inside the vent cavity, the valve body can protect the elastic element, which helps to improve the reliability of the elastic element.
[0019] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, a first vent groove is formed on the inner peripheral surface of the second vent hole; the valve core is slidably fitted with the second vent hole, and a second vent groove is formed on the outer peripheral surface of the valve core. Along the depth direction of the second vent hole, one end of the second vent groove extends into the venting cavity, and the other end is closed; in the open state, the second vent groove and the first vent groove are arranged opposite to each other, together forming a venting channel, which connects the external space of the venting cavity and the venting cavity; in the sealed state, the second vent groove avoids the second vent groove.
[0020] In this way, the relative sliding between the valve core and the second air outlet allows the valve core to switch between a sealed state and an open state. The switching between the sealed state and the open state is relatively easy and has high reliability.
[0021] Secondly, this application provides a transmission, which includes a housing, a transmission mechanism, and a vent valve provided in the first aspect and the above-described implementation of this application. The housing has a receiving cavity, and the inner surface of the receiving cavity has a mounting hole that connects the external space of the receiving cavity with the receiving cavity; the transmission mechanism is disposed within the receiving cavity; and the vent valve is disposed in the mounting hole.
[0022] The transmission provided in this application, including the vent valve provided in the first aspect of this application and the above-described implementation, can achieve the same technical effect, namely, improving ventilation efficiency.
[0023] Thirdly, this application provides a vehicle that includes the transmission provided in the second aspect of this application or the vent valve provided in the first aspect of this application and the above-described implementation.
[0024] The vehicle provided in this application, including the transmission provided in the second aspect of this application or the vent valve provided in the first aspect of this application and the above-described implementation, can achieve the same technical effect, namely, it can improve the ventilating efficiency. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is one of the structural schematic diagrams of the vent valve in the embodiments of this application;
[0027] Figure 2 This is an exploded view of the vent valve in the embodiments of this application;
[0028] Figure 3 yes Figure 1 Cross-sectional view at point AA;
[0029] Figure 4 This is a schematic diagram of the valve cover structure in an embodiment of this application;
[0030] Figure 5 This is the second schematic diagram of the structure of the vent valve in the embodiments of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Valve housing; 11. Vent chamber; 111. First vent sub-chamber; 112. Second vent sub-chamber; 12. Air inlet; 121. Baffle; 13. First air outlet; 14. Second air outlet; 141. First vent groove; 15. Valve seat; 151. Divider; 152. Valve seat body; 1521. External thread; 1522. Protrusion; 153. Mating hole; 16. Valve cover; 161. Flanged edge; 162. Limiting part; 1621. Base; 1622. Limiting post; 163. Sealing part; 164. Mating part; 17. Vent passage; 18. Vent gap; 19. Vent interval; 2. Waterproof and breathable membrane; 3. Valve core; 32. Second vent groove; 4. Oil suction component; 5. Elastic component; 6. Vent cover; 7. Exhaust pipe; 8. Sealing ring; 9. Support component. Detailed Implementation
[0033] The technical solutions in this application will now be described clearly and in detail with reference to the accompanying drawings.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.
[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0036] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0038] The vent valve is located at the vent of the equipment. The vent valve has a waterproof and breathable membrane, which allows gas inside the equipment to be discharged outside the equipment through the vent valve, and prevents water outside the equipment from easily entering the equipment through the vent valve.
[0039] In related technologies, waterproof and breathable membranes tend to accumulate a lot of impurities, resulting in poor breathability.
[0040] The following analysis explains why impurities tend to accumulate more easily at the waterproof and breathable membrane in related technologies:
[0041] The gas inside the equipment often carries impurities. For example, the gas inside the transmission often carries lubricating oil. Lubricating oil has difficulty passing through the waterproof and breathable membrane. During the process of gas passing through the waterproof and breathable valve, lubricating oil is easy to move with the gas to the waterproof and breathable membrane and accumulate there.
[0042] In related technologies, waterproof and breathable membranes allow a large amount of air to pass through, and a lot of impurities tend to accumulate at the waterproof and breathable membrane, resulting in poor air permeability.
[0043] This application provides a vehicle, which can be of various types, such as a sedan, off-road vehicle, or sport utility vehicle (SUV).
[0044] The vehicle provided in this application embodiment includes a transmission, which includes a housing, a transmission mechanism, and a vent valve. The housing has a receiving cavity, and the inner surface of the receiving cavity has a mounting hole that connects the external space of the receiving cavity to the receiving cavity; the transmission mechanism is disposed within the receiving cavity; and the vent valve is disposed in the mounting hole.
[0045] In this embodiment of the application, at least one of the engine output shaft and the motor output shaft is connected to the axle via a transmission mechanism to drive the axle to rotate relative to the vehicle body.
[0046] Please refer to Figure 1 , Figure 2 and Figure 3The vent valve in this embodiment includes a valve housing 1, a waterproof and breathable membrane 2, and a valve core 3. The valve housing 1 forms a vent cavity 11, and the inner surface of the vent cavity 11 has an air inlet 12, a first air outlet 13, and a second air outlet 14. The waterproof and breathable membrane 2 is disposed at the first air outlet 13. The valve core 3 is disposed at the second air outlet 14. The valve core 3 has a sealed state and an open state. In the sealed state, the valve core 3 seals the second air outlet 14. In the open state, the second air outlet 14 connects the external space of the vent cavity 11 with the vent cavity 11. In this structural configuration, the valve housing 1 has a first vent 13 and a second vent 14. A waterproof and breathable membrane 2 is positioned at the first vent 13, and the valve core 3 is positioned at the second vent 14. When the valve core 3 is open, the second vent 14 connects the external space of the vent chamber 11 with the vent chamber 11, allowing gas to escape. The venting task is shared by both the first and second vents. The first vent 13 has a smaller airflow rate, resulting in less air passing through the waterproof and breathable membrane 2, which helps reduce impurities accumulating on the membrane. When the valve core 3 is sealed, it seals the second vent 14, preventing water from easily entering the vent chamber 11 through the second vent 14. The vent valve has strong waterproof capabilities, and in this case, the venting task is handled by the first vent 13. The valve core 3 switches between a sealed state and an open state, which can reduce the amount of air passing through the waterproof and breathable membrane 2 while meeting the requirement of less water entering the venting chamber 11. This reduces the amount of impurities accumulating on the waterproof and breathable membrane 2, thereby improving the air permeability. Therefore, the venting valve provided in this application can improve the air permeability.
[0047] Please refer to Figure 1 , Figure 2 and Figure 3 The vent valve in this embodiment can switch between an open state and a sealed state according to the external environment, so as to reduce the amount of air passing through the waterproof and breathable membrane 2 while ensuring that less water enters the vent chamber 11. When the transmission is not submerged in water, the valve core 3 can be in the open state, and gas can be discharged from the vent chamber 11 through the second vent 14. Since there is little water in the external environment, even if the second vent 14 connects the inside and outside of the vent chamber 11, water is not easily allowed to enter the vent chamber 11. When the transmission is submerged in water, the valve core 3 can be in the sealed state. Due to the blocking effect of the valve core 3, water in the external environment is not easily allowed to enter the vent chamber 11 through the second vent 14. The vent valve has good waterproof performance. Since the valve core 3 is in the sealed state, the gas in the vent chamber 11 is difficult to be discharged from the vent chamber 11 through the second vent 14. However, in this case, the gas can still be discharged from the vent chamber 11 through the first vent 13. The vent valve's ventilation function can still be satisfied. The waterproof and breathable membrane 2 allows the first vent 13 to vent gas on the one hand, and makes it difficult for water in the external environment to enter the vent chamber 11 through the first vent 13 on the other hand.
[0048] Please refer to Figure 1 , Figure 2 and Figure 3 Generally, since the gas is not obstructed by the waterproof and breathable membrane 2 during the passage of the second vent 14, when the valve core 3 is in the open state, the air pressure difference inside and outside the breathable cavity 11 at the second vent 14 is relatively large compared to the air pressure difference inside and outside the breathable cavity 11 at the first vent 13. As a result, the amount of gas passing through the second vent 14 is relatively large compared to the amount of gas passing through the first vent 13, which means that the amount of gas passing through the first vent 13 is relatively small compared to the amount of gas passing through the second vent 14. This results in less gas passing through the waterproof and breathable membrane 2, which helps to reduce the accumulation of impurities at the waterproof and breathable membrane 2 and improves the breathability efficiency.
[0049] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in this embodiment, the air inlet 12, the first air outlet 13, and the second air outlet 14 are all connected to the external space of the ventilated cavity 11 and the ventilated cavity 11. In the open state, gas can enter the ventilated cavity 11 through the air inlet 12 and exit the ventilated cavity 11 through the first air outlet 13 and the second air outlet 14. In the sealed state, gas can enter the ventilated cavity 11 through the air inlet 12 and exit the ventilated cavity 11 through the first air outlet 13.
[0050] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in this embodiment of the application, the mounting hole is used to install the vent valve. The mounting hole connects the external space of the receiving cavity with the receiving cavity. The vent valve is set in the mounting hole so that the vent cavity 11 is connected with the receiving cavity. The gas in the receiving cavity can enter the vent cavity 11 through the air inlet 12 and be discharged to the external environment of the transmission through the first air outlet 13 and the second air outlet 14.
[0051] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the valve housing 1 is threaded into the mounting hole. This ensures a more secure connection between the vent valve and the housing. In some embodiments of this application, the transmission also includes a sealing ring 8, which surrounds the mounting hole and is supported between the outer surface of the housing and the valve housing 1 along the depth direction of the mounting hole. This improves the sealing performance of the mounting hole. In some embodiments of this application, the valve housing 1 has a sealing groove, and the sealing ring 8 is embedded within the sealing groove. This improves the stability of the sealing groove installation.
[0052] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the valve housing 1 includes a valve seat 15 and a valve cover 16. An air inlet 12 and a first air outlet 13 are formed in the valve seat 15; generally, the valve seat 15 is threaded into a mounting hole. The valve cover 16 is located on the side of the first air outlet 13 away from the venting chamber, and is disposed opposite to the first air outlet 13, with a venting gap 19 formed between the valve cover 16 and the first air outlet 13. Thus, the valve cover 16 shields the first air outlet 13, providing waterproofing and dustproofing, while the gas discharged from the first air outlet 13 can be discharged to the external environment through the venting gap 19.
[0053] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, a through groove is formed on the surface of the valve seat 15 on the side where the first vent 13 is formed. One end of the through groove communicates with the first vent 13, and the valve cover 16 and the through groove together form a ventilation interval 19. This makes it easier to implement the ventilation interval 19.
[0054] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the valve cover 16 is further provided with a flange 161 on its outer edge. Along the depth direction of the first vent 13, the flange 161 extends toward the valve seat 15. Along the radial direction of the first vent 13, the flange 161 is located on the side of the valve seat 15 away from the first vent 13. The flange 161 can extend circumferentially along the first vent 13. In this way, impurities in the external environment need to pass through the gap between the flange 161 and the valve seat 15 to reach the first vent 13, reducing the risk of impurities in the external environment entering the vent chamber 11 through the first vent 13.
[0055] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the vent valve further includes an oil suction element 4, which is disposed in the vent chamber 11. The oil suction element 4 divides the vent chamber 11 to form a first vent sub-chamber 111 and a second vent sub-chamber 112. The first air outlet 13 is located in the first vent sub-chamber 111, and the air inlet 12 and the second air outlet 14 are located in the second vent sub-chamber.
[0056] In this way, the oil-absorbing component 4 divides the ventilated chamber 11, forming a first ventilated sub-chamber 111 and a second ventilated sub-chamber 112. The first vent 13 and the vent 12 are located in the first ventilated sub-chamber 111 and the second ventilated sub-chamber 112, respectively. This means that gas must first enter the second ventilated sub-chamber 112 through the vent 12, then pass through the oil-absorbing component 4 into the first ventilated sub-chamber 111, and then pass through the waterproof and breathable membrane 2 to be discharged into the external environment. The amount of oil carried by the gas after passing through the oil-absorbing component 4 is reduced, which helps to reduce oil accumulation at the waterproof and breathable membrane 2, thereby improving the breathability efficiency. The vent 12 and the second vent 14 are located in the second ventilated sub-chamber, so that in the open state, gas does not need to pass through the oil-absorbing component 4 and can be discharged directly through the second vent 14. The burden on the oil-absorbing component 4 is reduced, which helps to reduce oil accumulation on the oil-absorbing component 4. The oil-absorbing component 4 is not easily blocked, which helps to improve the breathability efficiency. Furthermore, the air inlet 12 and the second air outlet 14 are located in the second ventilated sub-cavity, which means that when the air is open, the oil-absorbing component 4 has a smaller obstruction effect on the gas flowing from the air inlet to the second air outlet 14. This is beneficial to increasing the gas flow rate and thus improving the ventilation efficiency. On the other hand, it makes the air pressure difference at the second air outlet 14 relatively larger than the air pressure difference at the first air outlet 13, making it easier for the gas to be discharged from the second air outlet 14. This means that the amount of gas discharged from the first air outlet 13 is less, which helps to reduce the oil accumulation at the waterproof and breathable membrane 2, thereby improving the ventilation efficiency.
[0057] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in this embodiment of the application, the oil-absorbing component 4 is located between the waterproof and breathable membrane 2 and the air inlet 12, so that the gas passes through the oil-absorbing component 4 into the first breathable sub-cavity and then passes through the waterproof and breathable membrane 2 to be discharged into the external environment.
[0058] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment of the application, the oil-absorbing component 4 can be made of various materials, for example, sponge, natural cotton, polypropylene or activated carbon, etc.
[0059] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the oil-absorbing component 4 is disposed opposite to the waterproof and breathable membrane 2. This improves the compactness of the structure. It should be noted that the direction in which the oil-absorbing component 4 and the waterproof and breathable membrane 2 are disposed opposite to each other is the thickness direction of the waterproof and breathable membrane 2.
[0060] Please refer to Figure 1 , Figure 2 and Figure 3In some embodiments of this application, the oil-absorbing member 4 is in close contact with the inner surface of the venting cavity 11 to reduce the phenomenon of gas passing through the gap between the oil-absorbing member 4 and the inner surface of the venting cavity 11.
[0061] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the vent valve further includes a support member 9, which can be fixedly connected to the valve housing 1, such as by welding or bonding. Along the thickness direction of the waterproof and breathable membrane 2, the support member 9 is supported between the oil-absorbing member 4 and the waterproof and breathable membrane 2. In this way, the oil-absorbing member 4 and the waterproof and breathable membrane 2 are separated by the support member 9, which helps to reduce the contamination of the waterproof and breathable membrane 2 by the oil accumulated at the oil-absorbing member 4.
[0062] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, a partition 151 protrudes from the inner surface of the vent cavity 11. Along the first direction, the first vent 13 and the second vent 14 are located on opposite sides of the partition 151. Along the first direction, the end faces of the oil-absorbing member 4 at opposite ends abut against the partition 151 and the inner surface of the vent cavity 11, respectively. The end faces of the oil-absorbing member 4 at opposite ends abut against the partition 151 and the inner surface of the vent cavity 11, respectively, so that the partition 151 restricts the oil-absorbing member 4 to the position corresponding to the first vent 13, and the oil-absorbing member 4 is installed with high stability in the vent cavity 11.
[0063] Please refer to Figure 1 , Figure 2 and Figure 3 It should be noted that, in this embodiment of the application, the partition 151 is a part of the inner surface of the ventilated cavity 11.
[0064] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the partition 151 has a plate-like structure, and the thickness direction of the plate-like structure is parallel to the first direction. This makes the processing and manufacturing of the partition 151 more convenient.
[0065] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the waterproof and breathable membrane 2 can be positioned in various ways. For example, the thickness direction of the waterproof and breathable membrane 2 can be perpendicular to or parallel to the first direction. The thickness direction of the waterproof and breathable membrane 2 is shown in the second direction in the figure.
[0066] Please refer to Figure 1 , Figure 2 and Figure 3In some embodiments of this application, the depth direction of the air inlet 12 is perpendicular to the first direction, and the partition 151 is disposed opposite to the air inlet 12. Thus, the partition 151, disposed opposite to the air inlet 12, can block the gas entering the breathable cavity 11 through the air inlet 12, thereby blocking impurities carried by the gas. This helps reduce impurities accumulating on the waterproof and breathable membrane 2 and improves breathability efficiency.
[0067] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in the embodiments of this application, when the partition 151 has a plate-like structure, the surface of the plate-like structure extending in the thickness direction is disposed opposite to the air inlet 12.
[0068] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the oil-absorbing element 4 and the waterproof and breathable membrane 2 are arranged opposite each other, with the second direction perpendicular to the first direction. Along the second direction, the vents and the waterproof and breathable membrane 2 are located on opposite sides of the oil-absorbing element 4. This allows the gas to travel a longer distance through the oil-absorbing element 4 as it flows from the inlet 12 to the first outlet 13, ensuring sufficient contact between the oil-absorbing element 4 and the gas. This facilitates the oil-absorbing element 4 in absorbing oil effectively and reduces the amount of oil carried by the gas. In some embodiments of this application, the depth direction of the inlet 12 is the second direction. This also allows the gas to travel a longer distance through the oil-absorbing element 4 as it flows from the inlet 12 to the first outlet 13, ensuring sufficient contact between the oil-absorbing element 4 and the gas. This further facilitates the oil-absorbing element 4 in absorbing oil effectively and reduces the amount of oil carried by the gas.
[0069] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the inner circumferential surface of the air inlet 12 is provided with two baffles 121 along a first direction. The two baffles 121 are arranged opposite each other along the first direction, and a separator 151 covers the gap between the two baffles 121. In this way, the baffles 121 can block the gas, thereby blocking impurities carried by the gas, which helps reduce impurities accumulating at the waterproof and breathable membrane 2 and improves breathability. The separator 151 covers the gap between the two baffles 121, allowing it to sufficiently block the gas passing through the gap, thereby blocking impurities carried by the gas, which helps reduce impurities accumulating at the waterproof and breathable membrane 2 and improves breathability.
[0070] Please refer to Figure 1 , Figure 2 and Figure 3It should be explained that, in this embodiment of the application, along the depth direction of the air inlet 12, the baffle 121 is located on the side of the partition 151 near the outside of the ventilator 11.
[0071] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the baffle 121 is a baffle plate, and the thickness direction of the baffle plate is the depth direction of the air inlet 12. In this way, the processing and manufacturing of the baffle 121 is more convenient.
[0072] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the gap between the separator 151 and the baffle 121 along the depth direction of the air inlet 12 is the same length as the gap between the two baffles 121. Thus, the length of the gap between the separator 151 and the baffle 121 along the depth direction of the air inlet 12 is small, resulting in greater resistance to impurities passing through this gap. This helps reduce impurities accumulating at the waterproof and breathable membrane 2 and improves air permeability.
[0073] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment of the application, the gap between the two baffles 121 is shown in Figure L1, and the gap between the partition 151 and the baffle 121 along the depth direction of the air inlet 12 is shown in Figure L2.
[0074] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the vent valve further includes an elastic element 5, which is disposed between the valve core 3 and the valve housing 1. Along the depth direction of the second vent hole 14, the elastic element 5 applies an elastic force to the valve core 3, with the elastic force directed outward from the vent cavity 11, thus keeping the valve core 3 in an open state. In this way, when the vent valve is not submerged in water, the valve core 3 remains in the open state under the action of the elastic force, allowing air to pass through the second vent hole 14. The pressure inside the vent cavity decreases, while the air pressure outside the vent cavity is high. This air pressure can overcome the elastic force, causing the vent valve to switch to a sealed state. Moreover, when the vent valve is submerged in water, the water outside the vent valve can also exert a force on the valve core 3, which can also overcome the elastic force, causing the vent valve to switch to a sealed state. Therefore, the valve core 3 can automatically switch between the open and sealed states when the external environment changes, resulting in lower control costs.
[0075] Please refer to Figure 1 , Figure 2 and Figure 3It should be explained that, in this embodiment of the application, the elastic force is directed towards the outside of the vent cavity 11, which means that along the depth direction of the second vent hole 14, the elastic force is directed from the side of the second vent hole 14 near the inside of the vent cavity 11 to the side near the outside of the vent cavity 11.
[0076] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the elastic element 5 is disposed within the vent cavity 11. By disposing the elastic element 5 within the vent cavity 11, the valve housing 1 can protect the elastic element 5, which helps to improve the reliability of the elastic element 5.
[0077] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the elastic element 5 is in an elastically compressed state, and the surface of the valve core 3 near the vent cavity 11 abuts against the elastic element 5 along the depth direction of the second vent hole. This ensures a more stable connection between the elastic element 5 and the valve core 3, resulting in higher reliability.
[0078] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the elastic element 5 is a compression spring, and a protrusion 1522 is formed on the inner surface of the vent cavity 11, with the compression spring sleeved on the protrusion 1522. In this way, the installation of the elastic element 5 in the vent cavity 11 is more stable.
[0079] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, a first vent groove 141 is formed on the inner circumferential surface of the second vent hole 14; the valve core 3 is slidably fitted with the second vent hole 14, and a second vent groove 32 is formed on the outer circumferential surface of the valve core 3. Along the depth direction of the second vent hole 14, one end of the second vent groove 32 extends into the venting cavity 11, and the other end is closed; in the open state, the second vent groove 32 and the first vent groove 141 are arranged opposite to each other, together forming a venting channel 17, which connects the external space of the venting cavity 11 with the venting cavity 11; in the sealed state, the second vent groove 32 is avoided. In this way, the relative sliding between the valve core 3 and the second vent hole 14 allows the valve core 3 to switch between the sealed state and the open state, which is relatively easy and has high reliability.
[0080] Please refer to Figure 2 , Figure 3 and Figure 4In some embodiments of this application, there are multiple first ventilation slots 141 and multiple second ventilation slots 32, and they are arranged in a one-to-one correspondence. The first ventilation slots 141 are arranged at intervals along the circumference of the second air outlet 14. In this way, having multiple first ventilation slots 141 and multiple second ventilation slots 32 is beneficial to improving air permeability.
[0081] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the valve housing 1 includes a valve seat 15 and a valve cover 16, which are disposed opposite to each other to form a venting cavity. An air inlet 12 is formed in the valve seat 15, and a second air outlet 14 is formed in the valve cover 16. The valve seat 15 and valve cover 16 are disposed opposite each other in the depth direction of the second air outlet 14. Along the depth direction of the second air outlet 14, an elastic member 5 is supported between the valve seat 15 and the valve core 3. This facilitates the installation of the elastic member 5 within the venting cavity 11. During the installation of the elastic member 5, it can be placed inside the valve seat 15 first, and then the valve cover 16 can be placed on top of the valve seat 15. Generally, in some embodiments of this application, a protrusion 1522 can be formed on the valve seat 15.
[0082] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the depth direction of the first vent 13 is the same as the depth direction of the second vent 14, and they are located on the same side of the venting chamber. Along the depth direction of the first vent 13, the valve seat 15 and the valve cover 16 are arranged opposite to each other. In this way, the structure of the valve housing 1 is relatively simple and the processing and manufacturing are relatively convenient.
[0083] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the valve seat 15 includes a valve seat body 152 and a partition 151. The valve seat body 152 forms a cavity, with an air inlet 12 located within the cavity. The cavity also has a drain hole, which can be arranged opposite to the air inlet 12, thus simplifying the structure of the valve seat 15. The partition 151 is disposed within the cavity and extends along the depth direction of the drain hole. One end of the partition 151 extends to the drain hole, dividing it into a first air outlet 13 and a mating hole 153. At least a portion of the valve cover 16 is engaged with the mating hole 153, and a second air outlet 14 is formed at the portion where the valve cover 16 is engaged with the mating hole 153. In this way, the partition 151 serves to both form the first air outlet 13 and engage with the valve cover 16, making full use of the partition 151 and improving the structural compactness.
[0084] Please refer to Figure 2 , Figure 3 and Figure 4 It is understood that in this embodiment of the application, the partition 151 divides the cavity of the valve seat body 152 into two parts arranged along the first direction, and the first air outlet 13 and the mating hole 153 are located in these two parts respectively.
[0085] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the valve seat body 152 and the partition portion 151 are integrally injection molded or integrally cast. This makes the processing and manufacturing of the valve seat 15 more convenient.
[0086] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the valve cover 16 has a protruding mating portion 164 along the depth direction of the mating hole 153, and the mating portion 164 mates with the mating hole 153. This helps to improve the stability of the installation of the valve cover 16 and the mating hole 153.
[0087] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the valve housing 1 forms a limiting portion 162. Along the depth direction of the second vent 14, the limiting portion 162 is disposed on the side of the valve core 3 away from the vent cavity 11, and along the depth direction of the second vent 14, the limiting portion 162 and the valve core 3 mutually limit each other. Thus, along the depth direction of the second vent 14, the limiting portion 162 can restrict the movement range of the valve core 3 relative to the valve housing 1, which helps reduce the risk of the valve core 3 detaching from the second vent under the action of elastic force.
[0088] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments of this application, the limiting portion 162 protrudes from the inner circumferential surface of the second vent 14. This facilitates the manufacturing of the limiting portion 162. In some embodiments of this application, the limiting portion 162 extends circumferentially along the second vent 14, forming a circumferential structure. This ensures that the limiting portion 162 reliably limits the valve core 3.
[0089] Please refer to Figure 2 , Figure 3 and Figure 4In some embodiments of this application, the limiting part 162 includes a base 1621 and a limiting post 1622. The base 1621 protrudes from the inner circumferential surface of the second vent 14 and extends circumferentially along the second vent 14 to form a circumferential structure. The limiting post 1622 protrudes from the surface of the base 1621 near the vent cavity 11 and limits the valve core 3 along the depth direction of the second vent 14. One end of the first vent groove 141 extends to the base 1621. Thus, when the valve core 3 abuts against the limiting post 1622 under the action of elastic force, there is a venting gap 18 between the surface of the valve core 3 away from the vent cavity 11 and the base 1621. This allows gas to be discharged to the external environment of the transmission through the venting channel 17. On the one hand, this realizes the venting function of the vent valve, and on the other hand, it makes the limiting part 162's limiting of the valve core 3 more reliable.
[0090] Please refer to Figure 2 , Figure 3 and Figure 5 In some embodiments of this application, the vent valve further includes a vent cover 6, which is disposed on the side of the second vent 14 away from the vent cavity 11. The vent cover 6 forms a vent cavity, and the inner surface of the vent cavity has an inlet hole and an outlet hole. The inlet hole and the outlet hole are respectively disposed on adjacent sides of the vent cavity. The inlet hole and the second vent 14 are opposite to each other and are sealed together. In this way, after the gas is discharged from the vent cavity 11 through the second vent hole 14, it passes through the inlet hole and the outlet hole in sequence and is discharged into the external environment. Impurities in the external environment also need to pass through the outlet hole and the inlet hole in sequence to enter the second vent hole 14 and then into the vent cavity 11. This makes the path of impurities in the external environment into the second vent hole 14 more tortuous, which helps to reduce the amount of impurities entering the second vent hole 14.
[0091] Please refer to Figure 2 , Figure 3 and Figure 5 In this embodiment, the sealing connection between the vent cover 6 and the second vent can be achieved in various ways. For example, the vent cover 6 can be welded, bonded, or press-fitted to the valve body 1.
[0092] Please refer to Figure 2 , Figure 3 and Figure 5 In some embodiments of this application, a sealing portion 163 protrudes from the outer surface of the vent valve along the depth direction of the second vent 14. The sealing portion 163 extends circumferentially along the second vent 14 to form a circumferential structure, and the vent hole and the sealing portion 163 are sealed together. Thus, the vent hole is fitted onto the sealing portion 163, making the installation of the vent cover 6 on the valve housing 1 more secure. The sealing fit between the vent hole and the sealing portion 163 makes the sealing connection between the vent hole and the second vent 14 more reliable.
[0093] Please refer to Figure 2 , Figure 3 and Figure 5 In some embodiments of this application, the vent valve further includes an exhaust pipe 7, which is disposed on the side of the exhaust port away from the venting chamber and is connected to the exhaust port. This increases the path for impurities in the external environment to enter the venting chamber, which helps to reduce the amount of impurities entering the second vent 14.
[0094] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.
Claims
1. A breather valve characterized by, The valve housing is formed with a gas permeable cavity, an inner surface of the gas permeable cavity has an air inlet hole, a first air outlet hole and a second air outlet hole; A waterproof gas permeable film is arranged at the first air outlet hole; A valve core is arranged at the second air outlet hole, the valve core has a sealing state and an open state, in the sealing state, the valve core seals the second air outlet hole, in the open state, the second air outlet hole connects the outside space of the gas permeable cavity and the gas permeable cavity. Further comprising an oil absorption piece arranged in the gas permeable cavity, the oil absorption piece separates the gas permeable cavity to form a first gas permeable sub-cavity and a second gas permeable sub-cavity, the first air outlet hole is located in the first gas permeable sub-cavity, and the air inlet hole and the second air outlet hole are located in the second gas permeable sub-cavity.
2. The breather valve of claim 1, wherein, The inner surface of the gas permeable cavity is convexly provided with a separation part, along a first direction, the first air outlet hole and the second air outlet hole are respectively located on opposite sides of the separation part, and along the first direction, the end faces of the opposite ends of the oil absorption piece respectively abut against the separation part and the inner surface of the gas permeable cavity.
3. The breather valve of claim 2, wherein, The depth direction of the air inlet hole is perpendicular to the first direction, and the air inlet hole is arranged opposite to the separation part.
4. The breather valve of claim 3, wherein, The inner peripheral surface of the air inlet hole is convexly provided with a blocking part along the first direction, the number of the blocking part is two, the two blocking parts are arranged opposite to each other along the first direction, and the separation part covers the gap between the two blocking parts.
5. The breather valve of claim 4, wherein, Further comprising an elastic piece arranged between the valve core and the valve housing, along the depth direction of the second air outlet hole, the elastic piece applies an elastic force to the valve core, the elastic force is towards the outside of the gas permeable cavity, and the valve core is in the open state.
6. The breather valve of claim 1, wherein, The elastic piece is arranged in the gas permeable cavity.
7. The breather valve of claim 6, wherein, The inner peripheral surface of the second air outlet hole is formed with a first air passage groove; 8. The breather valve according to any one of claims 1 to 7, wherein The valve core and the second air outlet hole are in sliding fit, the outer peripheral surface of the valve core is formed with a second air passage groove, one end of the second air passage groove extends into the gas permeable cavity along the depth direction of the second air outlet hole, and the other end is closed; In the open state, the second air passage groove is arranged opposite to the first air passage groove to jointly form an air passage, and the air passage connects the outside space of the gas permeable cavity and the gas permeable cavity; In the sealing state, the second air passage groove avoids the second air passage groove. The housing is formed with a receiving cavity, an inner surface of the receiving cavity has a mounting hole, the mounting hole connects the outside space of the receiving cavity and the receiving cavity; 9. A transmission characterized by, The transmission mechanism is arranged in the receiving cavity; The gas permeable valve according to any one of claims 1 to 8 is arranged in the mounting hole. The transmission or the gas permeable valve according to any one of claims 1 to 8. 10. A vehicle characterized by comprising: