A kind of breathing valve and intelligent driving controller air tightness detection device

Abstract

This invention relates to the field of airtightness testing technology, and discloses a breather valve and an airtightness testing device for an intelligent driving controller. The breather valve includes a valve body. The valve body includes a connecting part and a mounting part, with a balance channel and a detection channel provided between the connecting part and the mounting part to allow fluid communication between them, while the balance channel and the detection channel are isolated from each other. The breather valve has a first state where it is sealed with an airtight cover, and a second state where it cooperates with an external testing mechanism to perform airtightness testing on the inside of the controller. With the breather valve of this invention, during airtightness testing, it is only necessary to disconnect the airtight cover from the connecting part and connect the external testing mechanism to the connecting part to achieve airtightness testing on the inside of the intelligent driving controller, shortening the testing time of a single device and meeting the testing needs of large-scale production.

Description

Technical Field

[0001] This invention relates to the field of airtightness testing technology, and in particular to an airtightness testing device for a breathing valve and an intelligent driving controller. Background Technology

[0002] In the existing technology, during the airtightness test of the intelligent driving controller, the breathing valve of the intelligent driving controller must be completely disassembled first, and then the test nozzle is inserted into the through hole of the original breathing valve. At the same time, in order to ensure the airtightness of the test environment, a customized fixture is also required to wrap the entire controller shell.

[0003] The above operating method directly leads to two problems: First, the testing efficiency is low. The disassembly and reassembly of the breathing valve increases the operation steps and prolongs the testing time of a single device, making it difficult to meet the testing needs of large-scale production. Second, the cost is too high. Since different models of intelligent driving controllers have different external structures, customized fixtures need to be developed for each model. Not only is the development cost of a single fixture high, but the frequent replacement of fixtures will further reduce the testing efficiency, which is not conducive to the control of production costs and the standardization of the testing process. Summary of the Invention

[0004] To address the shortcomings of the prior art, this invention provides an airtightness testing device for a breathing valve and an intelligent driving controller. This device eliminates the need to disassemble the entire breathing valve and uses customized fixtures to perform airtightness testing on the intelligent driving controller, thus shortening the testing time for a single device and meeting the testing needs of large-scale production.

[0005] The technical effects to be achieved by this invention are realized through the following aspects:

[0006] In a first aspect, the present invention provides a breathing valve, comprising: The valve body includes a connecting part and a mounting part. A balance channel and a detection channel are provided between the connecting part and the mounting part to allow fluid communication between the connecting part and the mounting part, and the balance channel and the detection channel are isolated from each other. The breather valve has a first state in which it is sealed with an airtight cover, and a second state in which it cooperates with an external detection mechanism to perform airtightness detection on the inside of the controller. Specifically, when the breathing valve is in the first state, the connecting part is connected to the airtight cover to open the balance channel and block the detection channel; when the breathing valve is in the second state, the connecting part is connected to the external detection mechanism to block the balance channel and open the detection channel.

[0007] In some implementations, there are multiple detection channels, which are spaced apart around the periphery of the balancing channel.

[0008] In this implementation, multiple detection channels can increase the gas flow path and flow rate, allowing the gas input from the external detection agency to enter the intelligent driving controller more quickly and evenly during airtightness testing.

[0009] In some implementations, the mounting portion includes a resilient arm and a pawl, the pawl extending radially on the outer periphery of the resilient arm at the end away from the connecting portion.

[0010] In this implementation, when the breathing valve is installed in the mounting hole of the intelligent driving controller, the elastic wall elastically avoids the movement, allowing the mounting part to be smoothly inserted into the mounting hole. Then the elastic wall resets, so that the claw engages with the periphery of the mounting hole.

[0011] In some implementations, the breathing valve further includes a waterproof and breathable membrane covering the balance channel; when the breathing valve is in the second state, the external detection mechanism abuts against the waterproof and breathable membrane.

[0012] In some implementations, the airtight cover is provided with a sealing post, which blocks the detection channel when the breathing valve is in the first state.

[0013] In this implementation, the sealing column can form a tight fit with the detection channel, effectively preventing gas inside the intelligent driving controller from leaking through the detection channel when the breather valve is in normal use, i.e., when the breather valve is in the first state.

[0014] In some implementations, the airtight cover is provided with a connector, and the valve body is provided with a connector hole on its periphery. When the breathing valve is in the first state, the connector is inserted into the connector hole.

[0015] Secondly, the present invention provides an airtightness detection device for an intelligent driving controller, including a detection mechanism and the aforementioned breathing valve; The detection mechanism includes an airtight connector connected to the connection part; the airtight connector includes a cover part and a sealing part, the sealing part is located inside the cover part, the cover part covers the breather valve, the cover part has a guide channel in fluid communication with the detection channel, and the sealing part seals the balance channel.

[0016] In some implementations, the blocking part is configured as a cylindrical structure, with the first end of the blocking part blocking the balance channel, and an airflow channel opened on the side of the blocking part. The airflow channel is in fluid communication with the interior of the blocking part to form the flow guiding channel, and the cover part is connected to the outer periphery of the blocking part.

[0017] In this implementation, the internal space of the cylindrical sealing part and the side airflow channel form a continuous guide channel, which allows the external detection gas to flow to the detection channel through the guide channel, reducing the resistance and dispersion of the airflow during transmission.

[0018] In some implementations, the airtightness detection device for the intelligent driving controller further includes an air source mechanism connected to the second end of the sealing part.

[0019] In some implementations, the breathing valve is mounted on an airtight housing, the airtight housing has a mounting hole that is in fluid communication with the interior of the airtight housing, the mounting part is mounted on the mounting hole, the periphery of the mounting hole is provided with a first snap-fit ​​part, and the detection mechanism is provided with a second snap-fit ​​part that engages with the first snap-fit ​​part.

[0020] In this implementation, the first snap-fit ​​part and the second snap-fit ​​part engage to form a tight snap-fit ​​fixation between the detection mechanism and the airtight housing, thereby enhancing the connection stability between the detection mechanism and the airtight housing, preventing the connection from loosening due to gas pressure or external vibration during the detection process, and thus avoiding connection failure between the detection mechanism and the valve body.

[0021] In summary, the present invention has at least the following advantages: The breathing valve provided by this invention has a first state in which it is sealed by an airtight cover, and a second state in which it is used in conjunction with an external testing mechanism to perform airtightness testing on the inside of the controller. During airtightness testing, it is only necessary to disconnect the airtight cover from the connecting part and connect the external testing mechanism to the connecting part, allowing fluid communication between the external testing mechanism and the testing channel. This enables airtightness testing of the inside of the intelligent driving controller without disassembling the entire breathing valve. Furthermore, by using a customized fixture to perform airtightness testing on the intelligent driving controller, the testing time for a single device is shortened, meeting the testing needs of large-scale production, while also reducing the production cost of the customized fixture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the breather valve in Example 1; Figure 2 for Figure 1 A schematic cross-sectional view of the breathing valve is shown. Figure 3 This is an exploded view of the breathing valve in Example 2; Figure 4 for Figure 3 Another exploded view of the breathing valve shown; Figure 5 This is a schematic diagram of the breathing valve in the first state of Example 2; Figure 6This is a schematic diagram of the airtightness testing device in Example 3; Figure 7 for Figure 6 A magnified view of the airtightness testing device at point A; Figure 8 This is a cross-sectional schematic diagram of the airtightness testing device in Example 3.

[0023] Marked in the image: 10. Breathing valve; 100. Valve body; 101. Insertion hole; 110. Connecting part; 120. Mounting part; 121. Elastic arm; 122. Claw; 130. Balancing channel; 140. Detection channel; 200. Airtight cover; 210. Sealing post; 220. Connector; 300. Waterproof and breathable membrane; 20. Air tightness testing device; 400. Testing institution; 410. Airtight connector; 411. Cover part; 412. Sealing part; 4121. Airflow channel; 413. Guide channel; 420. Second snap-fit ​​part; 500, airtight housing; 501, mounting hole; 510, first snap-fit ​​part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of the present invention.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] Example 1: Please see the appendix Figure 1 ~Appendix Figure 2 The breathing valve 10 of the present invention includes a valve body 100.

[0027] In this regard, please combine Figure 1 and Figure 2 , Figure 1 The diagram illustrates the structural relationship between the airtight cover 200, the connecting part 110, and the mounting part 120 in an embodiment of the present invention. Figure 2The diagram illustrates the structural relationship between the balancing channel 130 and the detection channel 140 in an embodiment of the present invention. Specifically, the valve body 100 includes a connecting portion 110 and a mounting portion 120. A balancing channel 130 and a detection channel 140 are provided between the connecting portion 110 and the mounting portion 120 to allow fluid communication between the connecting portion 110 and the mounting portion 120, while the balancing channel 130 and the detection channel 140 are isolated from each other. The breathing valve 10 has a first state in which it is sealed by an airtight cover 200, and a second state in which it cooperates with an external detection mechanism to perform airtightness detection on the inside of the controller. Specifically, when the breathing valve 10 is in the first state, the connecting portion 110 is connected to the airtight cover 200 to allow the balancing channel 130 to be open and the detection channel 140 to be blocked; when the breathing valve 10 is in the second state, the connecting portion 110 is connected to the external detection mechanism to allow the balancing channel 130 to be blocked and the detection channel 140 to be open.

[0028] In this embodiment, the connecting part 110 is used to connect to the airtight cover 200 or to an external detection mechanism so that the breathing valve 10 switches between a first state and a second state; the mounting part 120 is used to install on the intelligent driving controller so that the balance channel 130 and the detection channel 140 are respectively in fluid communication with the inside of the intelligent driving controller.

[0029] When the breather valve 10 is in its first state, it operates normally, balancing the pressure difference between the inside and outside of the intelligent driving controller through the balance channel 130. For example, when the internal pressure of the intelligent driving controller exceeds a set safety value, the balance channel 130 of the breather valve 10 opens, expelling excess gas and reducing the internal pressure. Alternatively, when the internal pressure of the intelligent driving controller is lower than the external atmospheric pressure, the balance channel 130 of the breather valve 10 opens, drawing in outside air to replenish the internal pressure and prevent the intelligent driving controller from being crushed or damaged by atmospheric pressure due to negative pressure. Simultaneously, the detection channel 140 is sealed by the airtight cover 200 to prevent gas leakage from the intelligent driving controller, which could affect its normal operation.

[0030] When the breathing valve 10 is in the second state, it cooperates with the external detection mechanism to detect the internal air pressure of the intelligent driving controller. Specifically, during airtightness testing, the external detection mechanism is connected to the connection part 110 of the breathing valve 10, allowing fluid communication between the external detection mechanism and the detection channel 140. Airflow enters the interior of the intelligent driving controller through the detection channel 140, thereby achieving airtightness testing of the intelligent driving controller. Simultaneously, when the external detection mechanism is connected to the connection part 110, it also seals the balance channel 130, ensuring that airflow enters the interior of the intelligent driving controller through the detection channel 140. This guarantees the correct airflow direction, making the airtightness test results more reliable, and preventing damage to components within the balance channel 130, such as the waterproof and breathable membrane 300.

[0031] It is understandable that when performing airtightness testing on the intelligent driving controller, the breather valve 10 can be used as a testing component in conjunction with an external testing mechanism to achieve airtightness testing of the intelligent driving controller. That is, the breather valve 10 and the testing component are reused to achieve switching between different functions. When performing airtightness testing on the intelligent driving controller, simply disconnect the connection between the airtight cover 200 and the connecting part 110, and then connect the external testing mechanism to the connecting part 110 to allow fluid communication between the external testing mechanism and the testing channel 140, thus achieving airtightness testing of the intelligent driving controller. After the test is completed, disconnect the connection between the external testing mechanism and the connecting part 110, allowing the airtight cover 200 to be connected to the connecting part 110, and it can then be used normally as the breather valve 10.

[0032] The aforementioned breather valve 10 has a first state where it is sealed by the airtight cover 200, and a second state where it is used in conjunction with an external testing mechanism to perform airtightness testing on the inside of the controller. During airtightness testing, it is only necessary to disconnect the airtight cover 200 from the connecting part 110 and connect the external testing mechanism to the connecting part 110, allowing fluid communication between the external testing mechanism and the testing channel 140. This enables airtightness testing of the inside of the intelligent driving controller without disassembling the entire breather valve 10 or using customized fixtures for airtightness testing. This shortens the testing time for a single device, meets the testing needs of large-scale production, and reduces the production cost of customized fixtures.

[0033] Example 2: The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the breathing valve 10 of the present invention. Please refer to the appendix. Figure 3 ~Appendix Figure 5 .

[0034] Please see below. Figure 3 , Figure 3The diagram illustrates the structural relationship between the multiple detection channels 140 and the balancing channel 130 in an embodiment of the present invention. Specifically, there are multiple detection channels 140, which are distributed at intervals around the periphery of the balancing channel 130.

[0035] In this embodiment, multiple detection channels 140 can increase the gas flow path and flow rate. When performing airtightness testing, the gas input by the external testing agency can enter the intelligent driving controller more quickly and evenly, shortening the time required for the gas to fill the controller, further improving the testing efficiency, and meeting the needs of high-efficiency testing in large-scale production.

[0036] In some preferred embodiments, please continue to refer to Figure 3 , Figure 3 The diagram illustrates the structural relationship between the elastic arm 121 and the claw 122 in an embodiment of the present invention. Specifically, the mounting portion 120 includes the elastic arm 121 and the claw 122, with the claw 122 extending radially on the outer periphery of the end of the elastic arm 121 away from the connecting portion 110. When the breathing valve 10 is installed in the mounting hole 501 of the intelligent driving controller, the elastic wall elastically avoids this contact, allowing the mounting portion 120 to smoothly insert into the mounting hole 501. Then, the elastic wall returns to its original position, causing the claw 122 to engage with the periphery of the mounting hole 501, thereby ensuring the connection stability between the breathing valve 10 and the intelligent driving controller. Simultaneously, the elastic engagement method also facilitates the disassembly and maintenance of the breathing valve 10, thereby improving the maintenance efficiency of the breathing valve 10.

[0037] Furthermore, a seal is provided between the mounting part 120 and / or the connecting part 110 and the inner wall of the mounting hole 501, thereby ensuring the reliability of the sealed connection between the breather valve 10 and the intelligent driving controller and preventing gas leakage from the intelligent driving controller.

[0038] In some preferred embodiments, the breathing valve 10 further includes a waterproof and breathable membrane 300, which covers the balance channel 130. When the breathing valve 10 is in the second state, an external detection mechanism abuts against the waterproof and breathable membrane 300. On the one hand, when the breathing valve 10 is in the first state, the waterproof and breathable membrane 300 can ensure that the balance channel 130 can achieve normal internal and external pressure balance, and effectively prevent external moisture, dust and other impurities from entering the intelligent driving controller through the balance channel 130, thus playing a protective role, ensuring the normal working environment of the internal components of the controller, and improving the reliability and service life of the equipment. On the other hand, when the breathing valve 10 is in the second state, the external detection mechanism abuts against the waterproof and breathable membrane 300, and the abutting action of the detection mechanism 400 can further enhance the sealing effect on the balance channel 130. The external testing mechanism is tightly fitted to the waterproof and breathable membrane 300 to prevent gas leakage from the balance channel 130 during the testing process. This ensures that the test airflow enters the controller only through the test channel 140, guaranteeing the uniqueness and sealing of the airflow path during testing, thereby improving the accuracy of the airtightness test results.

[0039] In some preferred embodiments, please refer to Figure 4 , Figure 4 The diagram illustrates the structural relationship between the sealing post 210 and the detection channel 140 in this embodiment of the invention. Specifically, the airtight cover 200 is provided with a sealing post 210, which blocks the detection channel 140 when the breather valve 10 is in the first state. The sealing post 210 can form a tight fit with the detection channel 140, effectively preventing the leakage of gas inside the intelligent driving controller through the detection channel 140 when the breather valve 10 is in normal use, i.e., when the breather valve 10 is in the first state. At the same time, it prevents external impurities, such as dust and moisture, from entering the controller through the detection channel 140, ensuring the airtightness of the controller and the normal working environment of its internal components, and avoiding performance failures caused by the detection channel 140 not being blocked.

[0040] Understandably, this configuration simplifies the structural design for switching the state of the breathing valve 10. The way the sealing column 210 cooperates with the detection channel 140 allows the detection channel 140 to be simultaneously blocked and opened by simply assembling and disassembling the airtight cover 200 and the connecting part 110 when switching between the first and second states. No additional sealing parts 412 or operating steps are required, which ensures the convenience of state switching, reduces structural complexity, and helps control the manufacturing cost of the breathing valve 10.

[0041] In some more preferred embodiments, please refer to Figure 4 and Figure 5 , Figure 4 The diagram illustrates the structural relationship between the connector 220 and the connector hole 101 in an embodiment of the present invention. Figure 5The illustration shows the specific structure of the breathing valve 10 in its first state in this embodiment of the invention. Specifically, the airtight cover 200 is provided with a connector 220, and the valve body 100 is provided with a connector hole 101 around its periphery. When the breathing valve 10 is in the first state, the connector 220 is inserted into the connector hole 101. The precise fit between the connector 220 and the connector hole 101 enables a stable connection structure between the airtight cover 200 and the valve body 100, preventing the airtight cover 200 from loosening or falling off due to external forces such as vibration and impact during normal use of the breathing valve 10. This ensures the normal conduction of the balance channel 130 and the reliable sealing of the detection channel 140, reducing the risk of gas leakage or impurity intrusion caused by connection failure.

[0042] Example 3: This embodiment, based on the above embodiments, provides an airtightness detection device 20 for an intelligent driving controller. Please refer to the attached document. Figure 6 ~Appendix Figure 8 .

[0043] An airtightness detection device 20 for an intelligent driving controller includes a detection mechanism 400 and the aforementioned breathing valve 10.

[0044] In this regard, please combine Figure 6 and Figure 7 , Figure 6 and Figure 7 The diagram illustrates the structural relationship between the detection mechanism 400 and the valve body 100 in an embodiment of the present invention. Specifically, the detection mechanism 400 includes an airtight connector 410, which is connected to the connecting portion 110. The airtight connector 410 includes a cover portion 411 and a sealing portion 412. The sealing portion 412 is disposed inside the cover portion 411, which covers the breather valve 10. The cover portion 411 has a guide channel 413 that is in fluid communication with the detection channel 140. The sealing portion 412 seals the balance channel 130.

[0045] In this embodiment, the airtight connector 410 of the detection mechanism 400 is closed to the breathing valve 10 via the cover part 411, while the sealing part 412 precisely seals the balance channel 130. Together with the guide channel 413 within the cover part 411, it forms a unique fluid path with the detection channel 140. This ensures that the external detection airflow enters the controller only through the detection channel 140, preventing gas leakage or cross-flow from the balance channel 130. This makes the monitoring of air pressure changes during the detection process more accurate and improves the reliability of the airtightness test results.

[0046] It is understandable that during airtightness testing, simply aligning the airtight connector 410 with the connection portion 110 of the breather valve 10 allows for channel switching and sealing through the coordinated action of the cover portion 411 and the sealing portion 412, eliminating the need to disassemble the breather valve 10 or use customized fixtures to encase the controller housing. This integrated approach eliminates the cumbersome disassembly, reassembly, and fixture replacement steps required in traditional testing, shortening the testing time for a single device and better meeting the high-efficiency testing needs of large-scale production.

[0047] In some preferred embodiments, please refer to Figure 8 , Figure 8 The diagram illustrates the structural relationship between the flow channel 413 and the detection channel 140 in this embodiment of the invention. Specifically, the blocking part 412 is configured as a cylindrical structure. The first end of the blocking part 412 blocks the balance channel 130, and an airflow channel 4121 is formed on the side of the blocking part 412. The airflow channel 4121 is in fluid communication with the interior of the blocking part 412 to form the flow channel 413. The cover part 411 is connected to the outer periphery of the blocking part 412. The internal space of the cylindrical blocking part 412 and the side airflow channel 4121 form a continuous flow channel 413, allowing external detection gas to flow to the detection channel 140 through the flow channel 413, reducing airflow resistance and dispersion during transmission. This design shortens the time for gas to enter the intelligent driving controller and improves the response speed and efficiency of airtightness detection. Meanwhile, the first end of the blocking part 412 acts directly on the balancing channel 130, which integrates the blocking function and the flow guiding function. It can achieve the dual functions of airflow guidance and balancing channel 130 blocking without additional parts, reducing manufacturing costs and assembly complexity.

[0048] In some preferred embodiments, the airtightness testing device 20 for the intelligent driving controller further includes a gas source mechanism connected to the second end of the sealing section 412. The gas source mechanism, directly connected to the second end of the sealing section 412, can stably and controllably deliver the detection gas to the detection channel 140 via the guide channel 413, and then into the interior of the intelligent driving controller. This integrated airflow supply path reduces gas loss or pressure attenuation in intermediate stages, facilitates precise adjustment of the pressure, flow rate, and duration of the detection gas, meets the requirements of different airtightness testing standards, and improves the flexibility of the testing.

[0049] In some other embodiments, the air tightness detection device 20 for the intelligent driving controller further includes a gas pipeline. The gas pipeline is located between the gas source mechanism and the second end of the sealing part 412. The gas source mechanism is in fluid communication with the sealing part 412 through the gas pipeline, so that the detection gas in the gas source mechanism enters the guide channel 413 in the sealing part 412 through the gas pipeline, thereby realizing the air tightness detection of the intelligent driving controller.

[0050] In some more preferred embodiments, please refer to Figure 7 , Figure 7 The diagram illustrates the structural relationship between the first snap-fit ​​portion 510 and the second snap-fit ​​portion 420 in an embodiment of the present invention. Specifically, the breather valve 10 is mounted on the airtight housing 500. The airtight housing 500 has a mounting hole 501 that is in fluid communication with the interior of the airtight housing 500. The mounting portion 120 is mounted in the mounting hole 501. The periphery of the mounting hole 501 is provided with the first snap-fit ​​portion 510, and the detection mechanism 400 is provided with a second snap-fit ​​portion 420 that engages with the first snap-fit ​​portion 510. The engagement of the first snap-fit ​​portion 510 and the second snap-fit ​​portion 420 forms a tight snap-fit ​​fixation between the detection mechanism 400 and the airtight housing 500, enhancing the connection stability between the detection mechanism 400 and the airtight housing 500, preventing loosening of the connection due to gas pressure or external vibration during the detection process, thereby avoiding connection failure between the detection mechanism 400 and the valve body 100, ensuring that the airtightness test is carried out in a closed and stable environment, and improving the reliability of the test results. It is understood that the airtight housing 500 is formed on the intelligent driving controller.

[0051] Furthermore, the first snap-fit ​​part 510 includes multiple snap-fit ​​blocks, which are spaced apart around the periphery of the mounting hole 501. The snap-fit ​​blocks have snap-fit ​​grooves on the side near the mounting hole 501. The second snap-fit ​​part 420 includes multiple snap-fit ​​buckles located around the outer periphery of the cover part 411. Each snap-fit ​​buckle corresponds to one of the multiple snap-fit ​​blocks. When the detection mechanism 400 is connected to the connecting part 110, the multiple snap-fit ​​buckles are snapped into the snap-fit ​​grooves of the multiple snap-fit ​​blocks, thereby achieving a stable connection.

[0052] The intelligent driving controller airtightness testing device 20 of the present invention has a first state in which the breathing valve 10 is sealed by the airtight cover 200, and a second state in which it cooperates with the external testing mechanism 400 to perform airtightness testing on the inside of the controller. During airtightness testing, it is only necessary to disconnect the airtight cover 200 from the connecting part 110 and connect the external testing mechanism 400 to the connecting part 110, so that the external testing mechanism 400 is in fluid communication with the testing channel 140. This allows for airtightness testing of the inside of the intelligent driving controller without disassembling the entire breathing valve 10. Furthermore, by using customized fixtures to perform airtightness testing on the intelligent driving controller, the testing time for a single device is shortened, meeting the testing needs of large-scale production, while also reducing the production cost of customized fixtures.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 this invention according to the specific circumstances.

[0054] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0055] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0056] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] Although the description of the invention has been given in conjunction with the specific embodiments described above, it will be apparent to those skilled in the art that many substitutions, modifications, and variations can be made based on the foregoing. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A breathing valve, characterized in that, include: The valve body (100) includes a connecting part (110) and a mounting part (120). A balance channel (130) and a detection channel (140) are provided between the connecting part (110) and the mounting part (120) to allow fluid communication between the connecting part (110) and the mounting part (120), and the balance channel (130) and the detection channel (140) are isolated from each other. The breather valve (10) has a first state in which it is sealed by an airtight cover (200), and a second state in which it cooperates with an external detection mechanism (400) to perform airtightness detection on the inside of the controller. When the breathing valve (10) is in the first state, the connecting part (110) is connected to the airtight cover (200) so that the balance channel (130) is open and the detection channel (140) is blocked; when the breathing valve (10) is in the second state, the connecting part (110) is connected to the external detection mechanism (400) so that the balance channel (130) is blocked and the detection channel (140) is open.

2. The breathing valve according to claim 1, characterized in that, The number of detection channels (140) is multiple, and the multiple detection channels (140) are distributed at intervals around the periphery of the balance channel (130).

3. The breathing valve according to claim 2, characterized in that, The mounting portion (120) includes an elastic arm (121) and a claw (122), the claw (122) extending radially on the outer periphery of the end of the elastic arm (121) away from the connecting portion (110).

4. The breathing valve according to claim 2, characterized in that, It also includes a waterproof and breathable membrane (300) that covers the balance channel (130); when the breathing valve (10) is in the second state, the external detection mechanism (400) abuts against the waterproof and breathable membrane (300).

5. The breathing valve according to claim 1, characterized in that, The airtight cover (200) is provided with a sealing post (210). When the breathing valve (10) is in the first state, the sealing post (210) blocks the detection channel (140).

6. The breathing valve according to claim 1, characterized in that, The airtight cover (200) is provided with a connector (220), and the valve body (100) is provided with a connector hole (101) around its periphery. When the breathing valve (10) is in the first state, the connector (220) is inserted into the connector hole (101).

7. An airtightness detection device for an intelligent driving controller, characterized in that, Includes a detection mechanism (400) and a breathing valve (10) according to any one of claims 1 to 6; The detection mechanism (400) includes an airtight connector (410), which is connected to the connection part (110); the airtight connector (410) includes a cover part (411) and a sealing part (412), the sealing part (412) is located inside the cover part (411), the cover part (411) covers the breathing valve (10), the cover part (411) is provided with a guide channel (413) that is in fluid communication with the detection channel (140), and the sealing part (412) seals the balance channel (130).

8. The airtightness detection device for intelligent driving controller according to claim 7, characterized in that, The blocking part (412) is configured as a cylindrical structure. The first end of the blocking part (412) blocks the balance channel (130). An airflow channel (4121) is provided on the side of the blocking part (412). The airflow channel (4121) is in fluid communication with the inside of the blocking part (412) to form the guide channel (413). The cover part (411) is connected to the outer periphery of the blocking part (412).

9. The airtightness detection device for intelligent driving controller according to claim 8, characterized in that, It also includes a gas source mechanism, which is connected to the second end of the sealing part (412).

10. The airtightness detection device for intelligent driving controller according to claim 7, characterized in that, The breathing valve (10) is installed on the airtight housing (500). The airtight housing (500) has a mounting hole (501) that is in fluid communication with the interior of the airtight housing (500). The mounting part (120) is installed in the mounting hole (501). The periphery of the mounting hole (501) is provided with a first snap-fit ​​part (510). The detection mechanism (400) is provided with a second snap-fit ​​part (420) that engages with the first snap-fit ​​part (510).

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