An electromagnetic valve for a gearbox

Abstract

The present invention relates to the field of solenoid valves, and more particularly, to a solenoid valve for a transmission. The solenoid valve specifically includes: a stator provided with an air outlet portion having a first air outlet end and a first air inlet end; an armature disposed on one side of the first air inlet end, the armature including a buffer member mounting portion, a nozzle mounting portion, and a ventilation groove, the buffer member mounting portion being disposed at one end of the armature, the nozzle mounting portion being disposed at the opposite end of the armature, and the ventilation groove being disposed outside the buffer member mounting portion; a nozzle abutting against the nozzle mounting portion; a buffer member mounted on the buffer member mounting portion; wherein when the solenoid valve is energized, the armature abuts against the stator, the buffer member closes the first air inlet end, and the nozzle moves away from the nozzle mounting portion. This transmission solenoid valve increases the electromagnetic force between the stator and the armature, reduces the air resistance between the armature and the stator of the solenoid valve, thereby increasing the flow rate of the solenoid valve.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valves, and more particularly to a solenoid valve for a transmission. Background Art

[0002] Automated Manual Transmission (AMT) is developed on the basis of a traditional manual transmission. It retains the gear transmission structure and shift mechanism of the manual transmission, and only automatically controls the separation and engagement of the clutch and the shifting action of the shift lever through an electronic control unit (ECU), a pneumatic or electric actuator. The automated manual transmission has the advantages of low cost, diverse driving modes, and high transmission efficiency, and has become the mainstream of modern vehicles. As an important component on the transmission, there is a problem of too small flow rate during the operation of the solenoid valve, which will lead to a reduction in the working efficiency of the system. For example, during the shifting process, insufficient flow rate may not be able to provide sufficient pressure for the clutch or the shift actuator in time, resulting in a shift delay. This will cause the vehicle to have too long a power interruption time during shifting, affecting the driving experience, especially in scenarios that require rapid shifting, such as downshifting and upshifting operations during rapid acceleration or deceleration.

[0003] Furthermore, in the prior art, the solenoid valve stator is often designed to extend into the rotor for exhaust. This design reduces the electromagnetic force of the solenoid valve. At the same time, due to the too long free length and insufficient rigidity of the spring, this design causes the spring to bear a large load during operation, exacerbating the wear of the spring and having an adverse impact on the durability of the solenoid valve.

[0004] Therefore, it is necessary to improve the prior art. Summary of the Invention

[0005] The problem solved by the present invention is to increase the electromagnetic force between the stator and the rotor of the solenoid valve for the transmission while reducing the air resistance and increasing the flow rate of the solenoid valve.

[0006] To solve the above problems, the present invention adopts the following technical solutions: A solenoid valve for a transmission includes: a stator, a rotor, a nozzle, and a buffer member. The stator is provided with an air outlet portion having a first air outlet end and a first air inlet end; the rotor is disposed on one side of the first air inlet end. The rotor includes a buffer member mounting portion, a nozzle mounting portion, and a ventilation groove. The buffer member mounting portion is disposed at one end of the rotor, the nozzle mounting portion is disposed at the opposite end of the rotor, and the ventilation groove is disposed outside the buffer member mounting portion; the nozzle abuts against the nozzle mounting portion; the buffer member is mounted on the buffer member mounting portion; wherein, when the solenoid valve is energized, the rotor abuts against the stator, the buffer member closes the first air inlet end, and the nozzle moves away from the nozzle mounting portion.

[0007] Compared with the prior art, the technical effects achieved by adopting this technical solution: Specifically, by arranging the buffer member between the stator and the rotor, while improving the electromagnetic force between the stator and the rotor, when the stator and the rotor are attracted, the buffer member isolates the contact between the stator and the rotor, which can effectively reduce vibration and noise.

[0008] Furthermore, when the solenoid valve is energized, the rotor abuts against the stator, and the buffer member closes the first air inlet end. This design can accurately control the on-off timing of the gas. When it is necessary to stop the gas supply or switch the gas path, through the close abutment of the rotor and the stator and the effective closing of the first air inlet end by the buffer member, the passage can be quickly and reliably cut off, ensuring the accuracy and stability of the control of the relevant passage system of the gearbox. Thereby, it helps to accurately control the pressure inside the gearbox, achieve precise shifting operations, and improve the smoothness and response speed of shifting.

[0009] Further, the solenoid valve is also provided with a valve sleeve, and the rotor is also provided with a rotor fixing portion; the stator is arranged at one inner end of the valve sleeve, the rotor is arranged at the other inner end of the valve sleeve, the valve sleeve is provided with an abutting portion, and the abutting portion is arranged at one end of the rotor; the rotor fixing portion is arranged outside the nozzle mounting portion, and the rotor fixing portion is connected and fixed to the abutting portion.

[0010] Compared with the prior art, the technical effects achieved by adopting this technical solution: The valve sleeve provides a stable installation environment for the stator and the rotor. By arranging the stator at one inner end of the valve sleeve and the rotor at the other end, the relative positions of the two are accurately fixed. This helps to maintain the stability of the internal structure of the entire solenoid valve during the frequent operation of the solenoid valve, especially when the rotor moves frequently under the action of electromagnetic force, reducing the possibility of displacement or collision between the stator and the rotor due to external vibration or impact, thereby ensuring the normal operation of the solenoid valve and extending its service life.

[0011] At the same time, by fixing the rotor through the abutting portion, when the rotor is under the action of electromagnetic force, it maintains a stable posture and position, avoiding shaking or deviation, ensuring that the cooperation accuracy between the rotor and components such as the nozzle and the stator is always in a good state, which is beneficial for the solenoid valve to achieve the precise passage control function.

[0012] Further, the solenoid valve is also provided with a conical spring. One end of the conical spring abuts against the abutting portion, and the other end is connected to the rotor fixing portion. The conical spring is used to maintain the state where the rotor abuts against the nozzle.

[0013] Compared with the prior art, the technical effects achieved by adopting this technical solution: One end of the conical spring abuts against the abutting portion, and the other end is connected to the rotor mounting portion. This connection method provides a stable elastic supporting force for the rotor. The conical spring has better stability and longer service life compared with the prior art, and can provide stable support for the rotor and the nozzle.

[0014] Furthermore, the nozzle mounting part includes: an air inlet hole and a sealing gasket, wherein one side of the air inlet hole is connected to the ventilation groove and the other side is connected to the nozzle, and the sealing gasket is installed on the other side of the air inlet hole; the nozzle includes a nozzle port, the nozzle port is connected to the air inlet hole, and the sealing gasket covers the nozzle port; wherein, when the solenoid valve is energized, the sealing gasket opens the nozzle port.

[0015] Compared with the prior art, the technical effect achieved by adopting this technical solution is that one side of the air inlet of the nozzle mounting part is connected to the venting groove, and the other side is connected to the nozzle, and the sealing gasket is installed on the other side of the air inlet and shields the nozzle opening. In the initial state when the solenoid valve is not powered, the sealing gasket can effectively close the nozzle opening passage to ensure the sealing of the nozzle opening passage.

[0016] Furthermore, the sealing gasket also includes a ventilation fence and a sealing ring, the sealing ring shields the connection between the air inlet and the nozzle opening, and the ventilation fence is evenly distributed on the outside of the sealing ring.

[0017] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the ventilation fences are evenly distributed on the outside of the sealing ring. When the solenoid valve is not energized, the ventilation fences, the air inlet holes and the ventilation grooves form a passage and are discharged through the air outlet of the stator; when the solenoid valve is energized, the sealing gasket opens, the air outlet is closed, and the gas entering the passage is discharged from the nozzle mouth.

[0018] Furthermore, the nozzle also includes a second air inlet hole, which is connected to the ventilation fence and is evenly distributed on the outside of the nozzle opening.

[0019] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: Specifically, the gas enters the ventilation fence from the second air inlet and then enters the mover air inlet, so the design increases the flow rate of gas entering the nozzle. When the solenoid valve is energized, the gas no longer relies on a single air inlet to flow in, but can flow in through multiple second air inlets at the same time, thereby effectively increasing the gas flow rate.

[0020] Furthermore, the nozzle includes a second clamping platform, which is arranged outside the second air inlet, the valve sleeve is provided with a second clamping wall, the second clamping platform is clamped to the second clamping wall, and the second clamping platform is used to fix the nozzle.

[0021] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The clamping method between the second clamping platform and the second clamping wall can achieve the precise installation and positioning of the nozzle within the valve sleeve. During the assembly process of the solenoid valve, this clamping structure can ensure the accurate relative positions among the nozzle, the valve sleeve, the mover, and other components. This fixing method can effectively maintain the position stability of the nozzle during the long-term operation of the solenoid valve. Whether it is the vibration and impact during vehicle driving or the internal stress generated by the frequent operation of the solenoid valve, the clamping structure can prevent the nozzle from shifting or loosening. The stable nozzle position helps to maintain the consistency and reliability of the gas path system, reduces the fluctuation of the passage parameters caused by the change of the nozzle position, improves the durability and service life of the solenoid valve, reduces the risk of failure caused by component loosening, and thus ensures the stability and reliability of the transmission control system.

[0022] Further, the air outlet part includes: a first air outlet hole and a first air inlet hole. The first air outlet hole is provided at the first air outlet end, and the first air inlet hole is provided at the first air inlet end. The aperture of the first air outlet hole is larger than that of the first air inlet hole.

[0023] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: During the operation of the solenoid valve, when the gas is discharged from the air outlet part, it enters the large-aperture first air outlet hole from the small-aperture first air inlet hole, stabilizing the pressure when the gas is discharged and achieving precise regulation of the gas pressure.

[0024] Further, the buffer member includes a buffer disk and a clamping disk. The diameter of the buffer disk is larger than that of the first air inlet hole, and the diameter of the clamping disk is larger than that of the buffer disk; the buffer member installation part is provided with a clamping space and a clamping protrusion. The clamping protrusion is provided on the wall of the clamping space. The buffer member is installed in the clamping space, and the clamping disk abuts and is fixed against the clamping protrusion.

[0025] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The buffer member installation part is provided with a clamping space and a clamping protrusion, and the clamping disk abuts and is fixed against the clamping protrusion. This clamping structure enables the buffer member to be firmly installed within the buffer member installation part. During the long-term operation of the solenoid valve, the buffer member will not easily shift or loosen, ensuring its reliability and stability in the action of closing the first air inlet end.

[0026] Further, the ventilation groove includes a U-shaped opening and a ventilation hole. One end of the ventilation hole is connected to the U-shaped opening, and the other end of the ventilation hole is connected to the nozzle.

[0027] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: By providing the U-shaped opening and the ventilation hole, with the U-shaped opening on the outside, when the gas passes through the ventilation hole and enters the U-shaped opening, the air resistance encountered is reduced, thereby increasing the flow rate of the entire solenoid valve. Description of the Drawings

[0028] Figure 1 Schematic structural diagram of a solenoid valve for a transmission provided by an embodiment of the present invention;

[0029] Figure 2 is Figure 1 Schematic structural diagram of the solenoid valve shown from another perspective;

[0030] Figure 3 is Figure 2 Cross-sectional view of the solenoid valve shown along the A-A direction;

[0031] Figure 4 is Figure 2 Another cross-sectional view of the solenoid valve shown along the A-A direction;

[0032] Figure 5 is Figure 1 Schematic structural diagram of the mover of the solenoid valve shown;

[0033] Figure 6 is Figure 5 Cross-sectional view of the mover of the solenoid valve shown along the C-C direction;

[0034] Figure 7 is Figure 1 Schematic structural diagram of the valve sleeve of the solenoid valve shown;

[0035] Figure 8 is Figure 1 Schematic structural diagram of the gasket of the solenoid valve shown;

[0036] Figure 9 is Figure 1 Schematic structural diagram of the nozzle of the solenoid valve shown.

[0037] Explanation of reference numerals:

[0038] 100 - Solenoid valve; 10 - Stator; 11 - Air outlet part; 12 - First air outlet hole; 13 - First air inlet hole; 20 - Mover; 21 - Venting groove; 211 - U-shaped opening; 212 - Venting hole; 22 - Buffer part installation part; 23 - Nozzle installation part; 24 - Air inlet hole; 25 - Gasket; 26 - Mover fixing part; 27 - Sealing ring; 28 - Venting fence; 43 - Clamping space; 44 - Clamping protrusion; 30 - Nozzle; 31 - Nozzle orifice; 32 - Second clamping platform; 33 - Second air inlet hole; 40 - Buffer part; 41 - Clamping disc; 42 - Buffer disc; 50 - Tower spring; 60 - Valve sleeve; 61 - Abutting part; 62 - Second clamping wall. Detailed implementation manners

[0039] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0040] See Figures 1-9 Figures 1-9 , which is a solenoid valve 100 for a gearbox provided by an embodiment of the present invention, specifically including: a stator 10, a mover 20, a nozzle 30, and a buffer member 40. The stator 10 is provided with an air outlet portion 11, and the air outlet portion 11 has a first air outlet end and a first air inlet end. The mover 20 is disposed on one side of the first air inlet end. The mover 20 includes a buffer member mounting portion 22, a nozzle mounting portion 23, and a ventilation groove 21. The buffer member mounting portion 22 is disposed at one end of the mover 20, the nozzle mounting portion 23 is disposed at the opposite end of the mover 20, and the ventilation groove 21 is disposed outside the buffer member mounting portion 22. The nozzle 30 abuts against the nozzle mounting portion 23. The buffer member 40 is mounted on the buffer member mounting portion 22. When the solenoid valve 100 is energized, the mover 20 abuts against the stator 10, the buffer member 40 closes the first air inlet end, and the nozzle 30 moves away from the nozzle mounting portion 23.

[0041] Specifically, by disposing the buffer member 40 between the stator 10 and the mover 20, while increasing the electromagnetic force between the stator 10 and the mover 20, when the stator 10 and the mover 20 are attracted, the buffer member 40 isolates the contact between the stator 10 and the mover 20, which can effectively reduce vibration and noise.

[0042] Preferably, the buffer member 40 can be made of rubber particles.

[0043] Furthermore, when the solenoid valve 100 is energized, the mover 20 abuts against the stator 10, and the buffer member 40 closes the first air inlet end. This design can precisely control the on-off timing of the gas. When it is necessary to stop the gas supply or switch the gas path, through the close abutment of the mover 20 and the stator 10 and the effective closure of the first air inlet end by the buffer member 40, the passage can be quickly and reliably cut off, ensuring the accuracy and stability of the control of the relevant passage system of the gearbox. Thereby, it helps to precisely control the pressure inside the gearbox, achieve precise shifting operations, and improve the smoothness and response speed of shifting.

[0044] Further, see Figure 1 , Figure 2 , Figure 4 , Figure 7 , the solenoid valve 100 is further provided with a valve sleeve 60, and the mover 20 is further provided with a mover fixing portion 26. The stator 10 is disposed at one end inside the valve sleeve 60, the mover 20 is disposed at the other end inside the valve sleeve 60. The valve sleeve 60 is provided with an abutting portion 61, and the abutting portion 61 is disposed at one end of the mover 20. The mover fixing portion 26 is disposed outside the nozzle mounting portion 23, and the mover fixing portion 26 is connected and fixed to the abutting portion 61.

[0045] The presence of the valve sleeve 60 provides a stable installation framework for the stator 10 and the rotor 20. The stator 10 is arranged at one end inside the valve sleeve 60, and the rotor 20 is arranged at the other end, enabling the relative positions of the two to be precisely fixed. This helps to maintain the stability of the internal structure of the entire solenoid valve 100 during the frequent operation of the solenoid valve 100, especially when the rotor 20 moves frequently under the action of electromagnetic force, reducing the possibility of displacement or collision between the stator 10 and the rotor 20 caused by external vibration or impact, thereby ensuring the normal operation of the solenoid valve 100 and extending its service life.

[0046] At the same time, the rotor 20 is fixed by the abutting portion 61, so that when the rotor 20 is under the action of electromagnetic force, it maintains a stable posture and position, avoiding shaking or deviation, and ensuring that the cooperation accuracy between the rotor 20 and components such as the nozzle 30 and the stator 10 is always in a good state, which is beneficial for the solenoid valve 100 to achieve an accurate passage control function.

[0047] Specifically, referring to Figure 1 、 Figure 2 、 Figure 4 ,the solenoid valve 100 is also provided with a tower spring 50. One end of the tower spring 50 abuts against the abutting portion 61, and the other end is connected to the rotor fixing portion 26. The tower spring 50 is used to maintain the state of the rotor 20 abutting against the nozzle 30.

[0048] One end of the tower spring 50 abuts against the abutting portion 61, and the other end is connected to the rotor installation portion. In this embodiment, the tower spring 50 has better stability and longer service life than an ordinary spring, and can provide a more stable support for the rotor 20 and the nozzle 30. At the same time, when the solenoid valve 100 is powered off, the elastic force of the tower spring 50 will quickly come into play, prompting the rotor 20 to quickly return to the initial position of abutting against the nozzle 30 and quickly reset.

[0049] Furthermore, referring to Figures 1-4 and Figure 8 ,the nozzle installation portion 23 includes: an air inlet hole 24, a sealing gasket 25. One side of the air inlet hole 24 is connected to the ventilation groove 21, and the other side is connected to the nozzle 30. The sealing gasket 25 is installed on the other side of the air inlet hole 24; the nozzle 30 includes a nozzle orifice 31, and the nozzle orifice 31 is connected to the air inlet hole 24, and the sealing gasket 25 shields the nozzle orifice 31; wherein, when the solenoid valve 100 is powered on, the sealing gasket 25 opens the nozzle orifice 31.

[0050] One side of the air inlet hole 24 of the nozzle installation portion 23 is connected to the ventilation groove 21, and the other side is connected to the nozzle 30. The sealing gasket 25 is installed on the other side of the air inlet hole 24 and shields the nozzle orifice 31. In the initial state when the solenoid valve 100 is not powered on, the sealing gasket 25 can effectively close the passage of the nozzle orifice 31 and ensure the sealing performance of the nozzle orifice 31 passage.

[0051] Furthermore, referring to Figure 8, the gasket 25 further includes a ventilation grid 28 and a sealing ring 27. The sealing ring 27 shields the connection between the air inlet hole 24 and the nozzle port 31, and the ventilation grid 28 is evenly distributed outside the sealing ring 27.

[0052] Preferably, the sealing ring 27 is a convex circular gasket that abuts against the nozzle port 31, and the sealing ring 27 is made of rubber particle material.

[0053] The ventilation grid 28 is evenly distributed outside the sealing ring 27. When the solenoid valve 100 is not powered on, the ventilation grid 28, the air inlet hole 24, and the ventilation groove 21 form a passage and are discharged through the air outlet part 11 of the stator 10. When the solenoid valve 100 is powered on, the gasket 25 opens, the air outlet part 11 closes, and the gas entering the passage is discharged from the nozzle port 31.

[0054] Further, referring to Figure 2 , Figure 3 , Figure 4 and Figure 9 , the nozzle 30 further includes a second air inlet hole 33. The second air inlet hole 33 is in communication with the ventilation grid 28, and the second air inlet holes 33 are evenly distributed outside the nozzle port 31.

[0055] The gas enters the ventilation grid 28 from the second air inlet hole 33 and then enters the rotor air inlet hole 24. Such a design increases the gas flow rate into the nozzle 30. When the solenoid valve 100 is powered on, the gas no longer flows in only through a single second air inlet hole 33, but can rush in through multiple second air inlet holes 33 simultaneously, effectively improving the gas flow rate of the solenoid valve.

[0056] Specifically, referring to Figure 4 , Figure 7 and Figure 9 , the nozzle 30 includes a second clamping platform 32. The second clamping platform 32 is provided outside the second air inlet hole 33. The valve sleeve 60 is provided with a second clamping wall 62. The second clamping platform 32 is clamped to the second clamping wall 62, and the second clamping platform 32 is used to fix the nozzle 30.

[0057] The clamping method between the second clamping platform 32 and the second clamping wall 62 can achieve the precise installation and positioning of the nozzle 30 within the valve sleeve 60. During the assembly process of the solenoid valve 100, this clamping structure can ensure the accurate relative positions among the nozzle 30, the valve sleeve 60, the mover 20, and other components. This fixing method can effectively maintain the position stability of the nozzle 30 during the long-term operation of the solenoid valve 100. Whether it is the vibration and impact during vehicle driving or the internal stress generated by the frequent operation of the solenoid valve 100, the clamping structure can prevent the nozzle 30 from shifting or loosening. The stable position of the nozzle 30 helps to maintain the consistency and reliability of the gas path system, reduces the fluctuations of the passage parameters caused by the position change of the nozzle 30, improves the durability and service life of the solenoid valve 100, reduces the risk of failures caused by component loosening, and thus ensures the stability and reliability of the transmission control system.

[0058] Furthermore, referring to Figures 2-4 , the gas outlet part 11 of the stator 10 includes: a first gas outlet hole 12 and a first gas inlet hole 13. The first gas outlet hole 12 is provided at the first gas outlet end, the first gas inlet hole 13 is provided at the first gas inlet end, and the aperture of the first gas outlet hole 12 is larger than that of the first gas inlet hole 13.

[0059] Preferably, the first gas inlet hole 13 protrudes from the first gas inlet end and abuts against the buffer member 40.

[0060] During the operation of the solenoid valve 100, when the gas is discharged from the gas outlet part 11, it enters the large-aperture first gas outlet hole 12 from the small-aperture first gas inlet hole 13, stabilizing the pressure when the gas is discharged and achieving precise regulation of the gas pressure.

[0061] Moreover, referring to Figures 2-6 , the buffer member 40 includes a buffer disk 42 and a clamping disk 41. The diameter of the buffer disk 42 is larger than that of the first gas inlet hole 13, and the diameter of the clamping disk 41 is larger than that of the buffer disk 42; the buffer member installation part 22 is provided with a clamping space 43 and a clamping protrusion 44. The clamping protrusion 44 is provided on the wall of the clamping space 43. The buffer member 40 is installed in the clamping space 43, and the clamping disk 41 abuts and is fixed against the clamping protrusion 44.

[0062] The buffer member installation part 22 is provided with a clamping space 43 and a clamping protrusion 44. The diameter of the clamping disk 41 is larger than that of the buffer disk 42 and abuts and is fixed against the clamping protrusion 44. This clamping structure enables the buffer member 40 to be firmly installed within the buffer member installation part 22. During the long-term operation of the solenoid valve 100, the buffer member 40 will not easily shift or loosen, ensuring its reliability and stability in the action of closing the first gas inlet end. At the same time, the setting of the clamping space 43 and the clamping protrusion 44 makes the installation of the buffer member 40 relatively simple and does not require other complex connection methods.

[0063] Meanwhile, referring to Figures 2-6 , the vent groove 21 includes a U-shaped opening 211 and vent holes 212. One end of each vent hole 212 is connected to the U-shaped opening 211, and the other end of each vent hole 212 is connected to the nozzle 30.

[0064] By providing the U-shaped opening 211 and the vent holes 212, with the U-shaped opening 211 on the outside, when the gas passes through the vent holes 212 and enters the U-shaped opening 211, the air resistance encountered is reduced, thereby increasing the flow rate of the entire solenoid valve.

[0065] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope defined by the claims.

Claims

1. A solenoid valve for a gearbox, characterized in that: The solenoid valve comprises: A stator (10), the stator (10) being provided with an air outlet portion (11), the air outlet portion (11) having a first air outlet end and a first air inlet end; A mover (20), the mover (20) being arranged at one side of the first air inlet end, the mover (20) comprising a buffer component mounting portion (22), a nozzle mounting portion (23) and a ventilation groove (21), the buffer component mounting portion (22) being arranged at one end of the mover (20), the nozzle mounting portion (23) being arranged at the other end opposite to the mover (20), the ventilation groove (21) being arranged at the outside of the buffer component mounting portion (22), the ventilation groove (21) comprising a U-shaped opening (211) and a ventilation hole (212), one end of the ventilation hole (212) being connected to the U-shaped opening (211), and the other end of the ventilation hole (212) being connected to the nozzle (30); A valve sleeve (60), the stator (10) being arranged at one end inside the valve sleeve (60), the mover (20) being arranged at the other end inside the valve sleeve (60), the valve sleeve (60) being provided with an abutment portion (61), and the abutment portion (61) being arranged at one end of the mover (20); The mover (20) is provided with a mover fixing portion (26), the mover fixing portion (26) is arranged outside the nozzle mounting portion (23), and the mover fixing portion (26) is connected and fixed to the abutting portion (61); The nozzle mounting portion (23) comprises: an air inlet hole (24) and a sealing gasket (25); one side of the air inlet hole (24) is connected to the vent groove (21), and the other side is connected to the nozzle (30); the sealing gasket (25) is mounted on the other side of the air inlet hole (24); A nozzle (30), the nozzle abutting against the nozzle mounting portion (23), the nozzle (30) comprising a nozzle opening (31), the nozzle opening (31) being connected to the air inlet (24), and the sealing gasket (25) shielding the nozzle opening (31); A buffer member (40), the buffer member (40) being mounted on the buffer member mounting portion (22); When the solenoid valve is energized, the mover (20) abuts against the stator (10), the buffer member (40) closes the first air inlet end, the nozzle (30) moves away from the nozzle mounting portion (23), and the sealing gasket (25) opens the nozzle opening (31).

2. The solenoid valve according to claim 1, characterized in that: The solenoid valve is further provided with a tower spring (50), one end of the tower spring (50) abuts against the abutting portion (61), and the other end is connected to the mover fixing portion (26), and the tower spring (50) is used to maintain the abutting state of the mover (20) and the nozzle (30).

3. The solenoid valve according to claim 1 or 2, characterized in that: The sealing pad (25) further comprises a ventilation fence (28) and a sealing ring (27), wherein the sealing ring (27) shields the connection between the air inlet hole (24) and the nozzle opening (31), and the ventilation fence (28) is evenly distributed on the outside of the sealing ring (27).

4. The solenoid valve according to claim 3, characterized in that: The nozzle (30) further comprises second air inlet holes (33), the second air inlet holes (33) being in communication with the ventilation fence (28), and the second air inlet holes (33) being evenly distributed on the outside of the nozzle opening (31).

5. The solenoid valve according to claim 4, characterized in that: The nozzle (30) comprises a second clamping platform (32), the second clamping platform (32) being arranged outside the second air inlet hole (33), the valve sleeve (60) being provided with a second clamping wall (62), the second clamping platform (32) being clamped to the second clamping wall (62), and the second clamping platform (32) being used to fix the nozzle (30).

6. The solenoid valve according to claim 1, characterized in that: The air outlet portion (11) comprises: a first air outlet hole (12) and a first air inlet hole (13); the first air outlet hole (12) is arranged at the first air outlet end; the first air inlet hole (13) is arranged at the first air inlet end; the aperture of the first air outlet hole (12) is larger than the aperture of the first air inlet hole (13).

7. The solenoid valve according to claim 6, characterized in that: The buffer component (40) comprises a buffer disk (42) and a clamping disk (41); the diameter of the buffer disk (42) is larger than the diameter of the first air inlet hole (13); and the diameter of the clamping disk (41) is larger than the diameter of the buffer disk (42); The buffer component mounting portion (22) is provided with a clamping space (43) and a clamping protrusion (44); the clamping protrusion (44) is provided on a wall of the clamping space (43); the buffer component (40) is mounted in the clamping space (43); and the clamping plate (41) is abutted and fixed against the clamping protrusion (44).

Images