An energy-saving purification valve device with double electromagnetic structure

Abstract

The invention relates to an energy-saving purification valve device with a dual electromagnetic structure, comprising a device input port (301), a drying filter cartridge (1), a valve body (2) and a dual electromagnetic structure (7). Compressed air enters the valve body (2) in a forward direction through the device input port (301) and the drying filter cartridge (1) in sequence, and is then transported to a brake pipeline in one direction and introduced into the dual electromagnetic structure (7) in the other direction. The dual electromagnetic structure (7) comprises a soft damping block (12) located at one side of the bottom of a reciprocating motion path of a closing member, weak vibration isolation springs (9, 11) located at both sides of the reciprocating motion path of the closing member, and a support damping block (10) located at the opposite side of the bottom of the reciprocating motion path of the closing member. When an ECU gives an electrical signal, the soft damping block (12) is impacted after reaching a limit point to generate vibration energy, a part of which is absorbed by the soft damping block (12) for the first time, and then the weak vibration isolation springs (9, 11) and the support damping block (10) on both sides use the vibration energy to perform nonlinear reciprocating motion, consuming a large amount of vibration energy for the second time. The invention has the advantages of reducing vibration, reducing pressure and preventing dust to increase service life.

Description

Technical Field

[0001] The invention relates to an energy-saving purification valve device with a double electromagnetic structure, in particular to an energy-saving purification valve device with a double electromagnetic structure used in an automobile air brake pipeline. Background Art

[0002] With the development of commercial vehicle braking technology, the pneumatic brake chassis system is the mainstream braking method for domestic commercial vehicles. The air produced by the compressor will contain a large amount of water, and will also carry a mixture of oil, coke impurities, etc. caused by the start of the air compressor into the air pipeline system, which will cause great harm, specifically manifested as serious damage to all automotive parts in the braking system such as electronic equipment, rubber seals, and lubricants, reducing the safety performance and safety reliability of the vehicle. Therefore, commercial vehicles on the market generally use dry cylinders as the first means to isolate oil pollution from the supply pipeline.

[0003] In these technical solutions, various solenoid valves are inevitably used. For example, in the Chinese invention application CN107878435A, Duan Huiping disclosed an automobile air dryer, including a drying cylinder and a valve body, the drying cylinder is mounted on the valve body, the valve body is provided with a dual-channel solenoid valve, the dual-channel solenoid valve includes a pressure reducing solenoid valve and a back-blowing solenoid valve; the valve body is provided with a pressure reducing circuit and a back-blowing circuit; the pressure reducing circuit includes a pressure reducing channel and a starting channel, the pressure reducing channel is connected to the starting channel, and the pressure reducing solenoid valve is located between the pressure reducing channel and the starting channel; the back-blowing circuit includes an air supply channel, a one-way valve hole containing a one-way valve, a connecting channel connected to the air supply channel, and a back-blowing solenoid valve; one end of the one-way valve hole is connected to the drying air cavity A, and the other end thereof is connected to the connecting channel, and the back-blowing solenoid valve is located between the connecting channel and the air supply channel.

[0004] The vibration frequency generated by each electromagnetic opening and closing action of these solenoid valves has an effect on the fatigue of the nearby rigid structure, which is beneficial to the life of the valve port of the electromagnetic structure and the overall structure. In addition, since compressed gas is used, these compressed gases exert pressure on the valve of the solenoid valve, which will also affect the performance and life of the solenoid valve. In addition, there is also the problem of failure caused by dust blocking the solenoid valve port. Therefore, there is still a need for an energy-saving purification valve device with an improved solenoid valve structure in the technical field. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an energy-saving purification valve device with a dual electromagnetic structure, which is characterized by:

[0006] It includes a device input port 301, a drying filter cartridge 1, a valve body 2 and a double electromagnetic structure 7. Compressed air enters the valve body 2 in a positive direction through the device input port 301 and the drying filter cartridge 1, and then is transported to the brake pipeline in one direction and introduced into the double electromagnetic structure 7 in the other direction.

[0007] The dual electromagnetic structure 7 includes a soft damping block 12 located on one side of the bottom of the reciprocating motion path of the closing member, weak vibration isolation springs 9, 11 located on both sides of the reciprocating motion path of the closing member, and a support damping block 10 located on the opposite side of the bottom of the reciprocating motion path of the closing member. When the ECU gives an electrical signal, the soft damping block 12 will be hit after reaching the limit point and will generate vibration energy, part of which will be absorbed by the soft damping block 12 for the first time. After that, the weak vibration isolation springs 9, 11 and the support damping block 10 on both sides will use the vibration energy to perform nonlinear reciprocating motion, consuming a large amount of vibration energy for the second time.

[0008] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the valve body 2 further includes an integrated one-way throttle valve 14, and the electromagnetic structure 7 is connected to the valve body 2 via the integrated one-way throttle valve 14.

[0009] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the dual electromagnetic structure 7 is provided with a return valve port 75, which is in the shape of a circular protrusion, and cooperates with the one-way valve hole 78 corresponding to the integrated one-way shut-off valve 14 in the valve body 2 in a coaxial shape at an arbitrary angle, thereby performing a first positioning with a smaller gap between the dual electromagnetic structure 7 and the valve body 2.

[0010] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the bolt 95 is threadedly connected to the valve body 2 through at least two mounting holes in sequence, thereby performing a second positioning with a larger gap between the dual electromagnetic structure 7 and the valve body 2.

[0011] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the dual electromagnetic structure 7 includes a special-shaped air inlet cavity 71 connected to the valve body 2, a special-shaped ring 5, a second valve body 6, a second valve body reflux output port 61 and a second valve body cut-off output port 62, and a valve port sealing block 8 and an electromagnetic structure valve port 73 that are in a normally closed state under the pressure of the electromagnetic structure pressure spring 18.

[0012] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the valve body 2 has a cut-off control chamber channel 27 and a cut-off piston valve assembly 16. During the cut-off operation, the ECU gives an electrical signal, and the electromagnetic structure valve port 73 changes from normally closed to normally open. The special-shaped air intake chamber 71 of the electromagnetic structure will supply compressed air to the second valve body cut-off output port 62, and then reach the cut-off control chamber channel 27. At this time, it is divided into two paths, one is output to the air compressor control port 302 associated with the stop valve of the air compressor, and the other is to open the cut-off piston valve assembly 16, so that the device input port 301 is indirectly connected to the discharge channel 28 of the valve body 2, and the compressed air directly flows to the discharge channel 28.

[0013] In one technical scheme, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the valve body 2 has a valve body reflux input channel 29, a weak spring 15, a valve body reflux output channel 210 and a valve body air intake channel 21. When further entering the regeneration cycle operation after the cut-off operation, the ECU gives an electrical signal to control the valve port sealing block 8 of the second valve body reflux output port 61 to change from normally closed to normally open, and the compressed gas enters from the valve body reflux input channel 29, overcomes the weak spring 15, opens and passes through the integrated one-way shut-off valve 14, and the compressed air with limited throughput and flow rate per unit time enters the valve body air intake channel 21 from the valve body reflux output channel 21 in the reverse direction, and thereby enters the drying filter cartridge 1 in the reverse direction, and further enters the valve body 2 and leads to the discharge channel 28.

[0014] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the dual electromagnetic structure 7 further includes an exhaust breathing channel 30, a first electromagnetic structure breathing channel 31, a second electromagnetic structure breathing channel 33 and a connecting breathing channel 34 separated by the valve body 2 and the second valve body 6. The exhaust breathing channel 30 is connected to the inside of the valve body 2 and isolated from the atmosphere, and the exhaust breathing channel 30, the first electromagnetic structure breathing channel 31 and the second electromagnetic structure breathing channel 33 are simultaneously penetrated by the connected breathing channel 34 and sealed and isolated from the atmosphere.

[0015] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that the exhaust breathing channel 30 is connected to the exhaust cavity channel 28 of the valve body 2 inside the valve body 2 and isolated from the atmosphere.

[0016] In one technical solution, the energy-saving purification valve device with a dual electromagnetic structure of the present application is characterized in that it further includes a silencer filter structure 13 connected to the drain channel 28 .

[0017] The above technical solution of the present invention has the following advantages compared with the prior art:

[0018] The electromagnetic structure of the present application has a bidirectional damping and vibration isolation design to increase the function of consuming vibration energy, thereby avoiding the excessive fatigue effect of the vibration frequency generated by each electromagnetic opening and closing action on the nearby rigid structure, which is beneficial to the life of the electromagnetic structure valve port and the overall structure.

[0019] The device also includes a new integrated one-way shutoff valve, which saves costs, reduces the difficulty of assembly and maintenance, and contributes to economic and practical value. It prevents the solenoid valve from maintaining pressure for a long time when the air pressure is too high.

[0020] The device is an electromagnetic structure with a dust-proof internal breathing structure, which can reduce the problem of failure caused by dust blocking the electromagnetic valve port during the use of the device and increase the life of the device. The advantages of this device are also reflected in helping to solve the NVH problem at the connection between the chassis and the frame, reducing the freedom of chassis layout constraints, and ultimately contributing to the improvement of the internal and external comfort of the entire vehicle.

[0021] In addition, the technical solution of the present application also integrates other functions: a cut-off function for preventing the air compressor from experiencing a vicious cycle of load, thereby improving efficiency and saving energy, and protecting the safety pressure of subsequent pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the following briefly introduces the drawings required for use in the specific implementation modes. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall appearance structure of the energy-saving purification valve device with a double electromagnetic structure of the present invention;

[0024] Figure 2 It is a sectional view of the whole of the energy-saving purification valve device with a double electromagnetic structure of the present invention;

[0025] Figure 3 The invention discloses an external divided mechanical device with a spiral curved surface for an energy-saving purification valve device with a double electromagnetic structure.

[0026] Figure 4 It is a schematic structural diagram of the external cavity 20 and the drain channel 28 of the energy-saving purification valve device with a dual electromagnetic structure of the present invention.

[0027] Figure 5 It is a schematic diagram of the air intake route of the energy-saving purification valve device with a dual electromagnetic structure of the present invention.

[0028] Figure 6 The invention is an energy-saving purification valve device with a double electromagnetic structure. Figure 2A magnified view of part I in the middle;

[0029] Figure 7 The invention is an energy-saving purification valve device with a double electromagnetic structure. Figure 2 A magnified view of the middle part II;

[0030] 1. Dry filter cartridge; 2. Valve body; 3. High-flow one-way valve; 4. Weak spring; 5. Special-shaped sealing ring; 6. Second valve body; 7. Double electromagnetic structure; 8. Valve port sealing block; 9. Vibration isolation weak spring; 10. Support damping block; 11. Vibration isolation weak spring; 12. Soft damping block; 13. Silencing filter structure; 14. Integrated one-way throttle valve; 15. Weak spring; 16. Cut-off piston valve assembly; 17. Cut-off valve pressure spring; 18. Electromagnetic structure pressure spring; 20. External cavity; 21. Valve body air inlet channel A; 22. Spiral flow channel; 23. Valve body one-way valve air inlet channel; 24. Valve body one-way valve output channel; 27. Cut-off control cavity channel; 28. Excretion channel; 29. ​​Valve body reflux input channel; 30. Excretion breathing channel; 31. The breathing channel of the first electromagnetic structure; 33. The breathing channel of the second electromagnetic structure; 34. The connecting breathing channel; 61. The reflux output port of the second valve body; 62. The cut-off output port of the second valve body; 71. The special-shaped air inlet cavity of the electromagnetic structure; 73. The valve port of the electromagnetic structure; 74. The coil of the electromagnetic structure; 75. The reflux valve port; 76. The cut-off sealing groove; 77. The reflux sealing groove; 78. The one-way valve hole; 79. The top cover; 81. The retaining ring; 95. The bolt; 98. The heater assembly; 110. The air inlet channel of the drying cylinder; 120. The output channel of the drying cylinder; 201. The outer side wall of the external cavity column; 202. The inner side wall of the external cavity column; 210. The reflux output channel of the valve body; 211. The output channel of the valve body; 301. The input port of the device; 302. The control port of the air compressor. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the content of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The embodiments in the present invention and other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0032] The energy-saving purification valve device with a dual electromagnetic structure of the present application can be an energy-saving purification valve device with an integrated centrifugal oil separator. Figure 1 and Figure 2As shown, this embodiment discloses an energy-saving purification valve device integrated with a centrifugal oil separator, characterized in that it includes a device input port 301, a drying filter cartridge 1, and a valve body 2, wherein the valve body 2 has a centrifugal oil separator with a spiral flow channel 22, an external cavity 20, a valve body air inlet channel 21, and a discharge channel 28, and compressed air enters the valve body air inlet channel 21 in a forward direction through the device input port 301, the spiral flow channel 22, and the drying filter cartridge 1 in sequence.

[0033] When passing through the spiral flow channel 22 in the forward direction, it is centrifugally guided, and a mixture of coke, oil and other impurities generated by the air compressor in the compressed air is concentrated in the external chamber 20 to form retained substances, and the external chamber 20 and the discharge channel 28 are switchably connected to each other, and the retained substances are discharged when the compressed air passes through the spiral flow channel 22 in the reverse direction.

[0034] There are two methods for implementing the spiral flow channel 22. One is to arrange the spiral surface in the external cavity 20 and integrate it on the valve body 2. The other is to install an external split mechanical device with a spiral surface in the external cavity 20 and arrange it on the valve body 2. The external split mechanical device with a spiral surface is, for example, Figure 3 shown.

[0035] In an embodiment integrated on the valve body 2, the spiral curved surface structure of the spiral flow channel 22 is located in the external cavity 20 in the valve body 2, and after being arranged, it will cut the gap of the original cylindrical external cavity and form a spiral fluid domain (gap). The specific position is that the inner side of the spiral curved surface structure extends to the inner side wall 201 of the external cavity column of the external cavity 20 and intersects with it; the outer side of the spiral curved surface structure extends to the outer side wall 202 of the external cavity column of the external cavity 20 and intersects with it.

[0036] In another embodiment, for the spiral surface of the external split mechanical device with a spiral surface, the inner side of the spiral surface extends to the inner side wall 201 of the external cavity column of the external cavity 20 and maintains a small gap with the inner side wall 201 of the external cavity 20 to form a guide assembly; the outer side of the spiral surface extends to the outer side wall 202 of the external cavity column of the external cavity 20 and maintains a small gap with the outer side wall 202 of the external cavity 20 to form a guide spiral surface. In this way, its effect is not as good as the complete isolation type of integrating the spiral surface on the valve body, but its advantage is that it can be used as an improved functional enhancement solution for old products.

[0037] In addition, regarding the relationship between the spiral flow channel 22 and the external cavity 20, the latter includes the former. Figure 4 As shown, the spiral flow channel 22 is located in the outer chamber 20. In addition, as shown in FIG. Figure 4 As shown, the external cavity 20 and the drain passage 28 may be connected due to the coupling of the internal structure of the valve body. Figure 5The air intake route of the energy-saving purification valve device with a dual electromagnetic structure of the present invention is shown. As shown in the figure, after the gas enters the external cavity 20, it spirals upward along the spiral flow channel 22.

[0038] The present invention has a double electromagnetic structure inside the energy-saving purification valve device and before the drying filter cartridge 1, thereby achieving a significant effect of separating and removing oil pollution, avoiding damage to the molecular sieve and other components by oil pollution, and maximizing the reliability of the air dryer and improving its service life. In addition, in the oil separation structure, the sewage discharge function of the oil separator is attached to the regeneration circulation system function, so that it can also be regenerated and circulated, which has a long-term significance.

[0039] The dry filter cartridge 1 is connected to the valve body 2 by threads and can be detachably mounted on the energy-saving purification valve device with a dual electromagnetic structure of the present application. The dry filter cartridge 1 can be a dry filter cartridge with oil filter and / or integrated with a spiral channel as an impurity filter. In addition, in the technical solution of the present application, a spiral channel can also be integrated inside the dry filter cartridge 1 as an impurity filter.

[0040] The device sets a primary oil-dirt separation structure before filtering, thereby adding a pre-drainage separation means, the effect of which is not even lower than filter isolation alone, so the combination of the two will significantly enhance the protective effect on the air system.

[0041] The working principle of an energy-saving purification valve device with a dual electromagnetic structure of the present application is described below:

[0042] Condition 1 Compressed air treatment operation of centrifugal oil separator (spiral flow channel 22)

[0043] When the vehicle is running, the air compressor generates compressed air containing a large amount of water, and carries a mixture of coke, oil and other impurities caused by the start of the air compressor into the device input port 301. Subsequently, the compressed air containing a large amount of water and carrying a mixture of oil, coke and other impurities runs along the spiral flow channel 22 in the valve body 2, rotating at high speed and eventually generating centrifugal force. During this period, centrifugally guided, the mixture of coke, oil and other impurities generated by the air compressor in the compressed air accumulates on the outer side of the spiral flow channel 22 due to the centrifugal force, thereby forming a concentrated retained material at the outer side wall 202 of the external cavity 20, such as the outer side wall 202 of the external cavity column, and will not be brought into the dryer cylinder air inlet channel 110 with the compressed air.

[0044] Condition 2 Compressed air treatment operation of drying filter cartridge 1

[0045] After the working condition 1, the compressed air enters the dry filter cartridge 1 and is processed in the dry filter cartridge 1. The processing mode of the dry filter cartridge 1 can refer to various processing modes known in the art. For example, the fluid enters the dry cartridge air inlet channel 110, and the oil can be filtered first, and then the water can be filtered. After that, the fluid enters the valve body air inlet channel 21 of the valve body 2 from the dry cartridge output channel 120, and enters the next step of control and management.

[0046] The oil removal performance of the energy-saving purification valve device with a dual electromagnetic structure of the present application was tested, and it was found that after 900 hours of air compressor connected to the exhaust test of the device of the present invention, 3.1 ml / hour of grease was added to the air inlet of the air compressor. Compared with the energy-saving purification valve device without a dual electromagnetic structure, the oil content of the filter of the energy-saving purification valve device with a centrifugal oil separator was 4-11% lower on average.

[0047] The device may also integrate a silencer structure 13. In a specific embodiment, the energy-saving purification valve device with a dual electromagnetic structure of the present application further includes a silencer filter structure 13 connected to the discharge channel 28. The silencer filter structure 13 is designed to communicate with the atmosphere in principle, but a silencer net is provided in between, which can isolate sediment and reduce noise. The silencer filter structure 13 can be connected to the valve body 2 using a retaining ring 81, and can be detachably installed on the energy-saving purification valve device with a dual electromagnetic structure of the present application.

[0048] like Figure 1 As shown, the energy-saving purification valve device with a dual electromagnetic structure of the present application may also include a heater assembly 98, which is connected to the valve body using bolts and can be detachably installed on the energy-saving purification valve device with a dual electromagnetic structure of the present application.

[0049] In one embodiment of the energy-saving purification valve device with a dual electromagnetic structure of the present application, the valve body 2 further includes a cut-off piston valve assembly 16 that cuts off the external chamber 20 and the drain channel 28. When the device enters the regeneration cycle, the cut-off piston valve assembly 16 is in an open state, so that the external chamber 20 is connected to the drain channel 28, and the accelerating fluid rushes out from the dryer cylinder air inlet channel 110 in the opposite direction and drives the retained substances and moisture collected in the external chamber 20 to rush from the external chamber 20 to the drain channel 28.

[0050] The energy-saving purification valve device with a dual electromagnetic structure in the present application includes a dual electromagnetic structure 7 , and compressed air is partially guided from the valve body 2 through the valve body air inlet passage 21 of the valve body 2 to the dual electromagnetic structure 7 .

[0051] Condition 3: Regeneration cycle operation of the purification valve device

[0052] Under the control of the dual electromagnetic structure, when the energy-saving purification valve device with a dual electromagnetic structure of the present application enters the regeneration cycle, the direction is opposite to that of the route of working condition 2, and the final fluid will flush the moisture absorbed in the drying filter cartridge 1 back into the external chamber 20. In addition, the speed-increasing fluid rushes out from the dryer cartridge air inlet channel 110 in the opposite direction and drives the retained substances in the external chamber 20 to rush from the external chamber 20 to the discharge channel 28 together with the above-mentioned moisture. In the case of a silencing filter structure 13, the speed-increasing fluid enters the filter silencing structure 13 from the discharge channel 28 for silencing treatment and is isolated from the device.

[0053] like Figure 2 As shown, in a specific embodiment, the valve body 2 may further include a valve body one-way valve inlet channel 23, a large-flow one-way valve 3, a weak spring 4, a valve body output port channel 211 and a valve body one-way valve output channel 24.

[0054] Condition 4: Compressed air guide operation of valve body 2

[0055] After the above working condition 2, the compressed air enters the valve body 2 and is processed in the valve body 2 to be divided into several paths. For example, after the clean compressed air enters the valve body check valve inlet channel 23 from the valve body inlet channel 21, the large flow check valve 3 is subjected to the pressure generated by the closed fluid contact area to overcome the weak spring 4 to open the normally closed state. At this time, the fluid is divided into two paths: one path enters the valve body output port channel 211 and is finally delivered to the brake line, and according to the vehicle configuration, one output branch can eventually be associated with the air pressure sensor for feedback information through the vehicle ECU. The other path starts from the valve body check valve output channel 24 and enters the dual electromagnetic structure 7.

[0056] In one embodiment, the electromagnetic structure 7 is connected to the valve body 2 using bolts 95 and is detachably mounted on the energy-saving purification valve device with a dual electromagnetic structure of the present application. In one embodiment, the valve body 2 has an integrated one-way throttle valve 14, and the electromagnetic structure 7 is connected to the valve body 2 via the integrated one-way throttle valve 14.

[0057] like Figure 6 As shown, the dual electromagnetic structure 7 in the energy-saving purification valve device with a dual electromagnetic structure of the present application may include a special-shaped air intake cavity 71 connected to the large-flow one-way valve 3, a special-shaped ring 5, a second valve body 6, a second valve body reflux output port 61 and a second valve body cut-off output port 62, and a valve port sealing block 8 and a solenoid structure valve port 73 in a normally closed state due to the pressure of the electromagnetic structure pressure spring 18. Under the sealing effect of the special-shaped ring 5, the two parts of the valve body 2 and the second valve body 6 produce multi-chamber linkage, isolating the second valve body reflux output port 61 and the second valve body cut-off output port 62.

[0058] In one embodiment, one side of the valve body 2 contacts the second valve body 6, and a cut-off sealing groove 76 and a return sealing groove 77 are provided on the second valve body 6, so that the special-shaped sealing ring 5 can be set in the groove of the second valve body 6, and is used for sealing after contact. The second valve body 6 is provided with a return valve port 75, which is in the shape of a circular ring protrusion, and is matched with the one-way valve hole 78 in the integrated one-way throttle valve 14 of the valve body 2 in a coaxial shape, which can be any angle. Thus, after forming a certain guide, the first positioning of the valve body 2 and the second valve body 6 can be guaranteed. The first positioning is a match with a small gap.

[0059] In addition, the bolt 95 is threadedly connected to the valve body 2 through at least two mounting holes of the top cover 79 and the second valve body 6 in sequence. By using more than one bolt, the bolt preload force is guaranteed to be distributed within a safe range. After passing through the mounting hole, a second positioning of the side of the valve body 2 and the second valve body 6 is formed. The second positioning is a match with a large gap at least at two places. The two-stage positioning can ensure that the second valve body is intentionally aligned with the valve body to prevent misalignment.

[0060] from Figure 6 It is not difficult to see that the electromagnetic structure coil 74 is arranged between the top cover 79 and the second valve body 6 with a seal.

[0061] The working principle of the dual electromagnetic structure is introduced below:

[0062] Working condition 5: Solenoid valve cut-off operation

[0063] Reference Figure 2 , Figure 6 , when the ECU gives an electrical signal, the electromagnetic structure valve port 73 changes from normally closed to normally open, and the special-shaped air intake chamber 71 of the dual electromagnetic structure will supply compressed air to the second valve body cut-off output port 62, and then reach the cut-off control chamber channel 27. At this time, it is divided into two routes, one of which is output to the air compressor control port 302. Generally, the air compressor control port 302 can be associated with the stop valve of the air compressor, thereby playing a cut-off control role. Among them, the air compressor control port 302 is isolated from the external cavity 20 and the spiral flow channel 22 by the tail O-ring of the cut-off piston valve assembly 16. The other route makes the cut-off piston valve assembly 16 overcome the cut-off valve pressure spring 17 and move due to the pressure generated by the closed fluid area, so that the cut-off piston valve assembly 16 is in an open state. Then the device input port 301 will be indirectly interconnected with the discharge channel 28 through the external cavity 20, and the subsequent compressed air will directly lead to the discharge channel 28, and can be silenced from the filter silencer structure 13.

[0064] Therefore, the energy-saving purification valve device with a dual electromagnetic structure of the present application can realize the cut-off function and can process the subsequent compressed air to prevent the vicious cycle load of the air compressor, thereby improving the utilization efficiency and saving energy, and protecting the safety pressure of the subsequent pipelines.

[0065] Condition 6: Solenoid valve regeneration cycle operation

[0066] The solenoid valve regeneration cycle operation (operating condition 6) causes the purge valve device regeneration cycle operation (operating condition 3). Figure 2 , Figure 6 , Figure 7 After passing through working condition 5, if a regeneration cycle operation is required, when the ECU gives an electrical signal, the valve port sealing block 8 of the second valve body reflux output port 61 is controlled to change from normally closed to normally open, and the compressed gas enters from the valve body reflux input channel 29, overcomes the weak spring 15, opens and passes through the integrated one-way shut-off valve 14, and the compressed air with limited flow rate per unit time enters the valve body air inlet channel 21 from the valve body reflux output channel 210 in the reverse direction, and then enters the drying filter cartridge 1 in the reverse direction.

[0067] Furthermore, as described above, the fluid flushes the moisture absorbed in the drying filter cartridge 1 back into the external chamber 20. Moreover, the accelerating fluid flushes out from the drying cartridge air inlet channel 110 in the opposite direction and drives the retained substances in the external chamber 20 together with the above-mentioned moisture to flush from the external chamber 20 to the discharge channel 28. In the case of a noise-reducing filter structure 13, the accelerating fluid reenters the filtering and noise-reducing structure 13 from the discharge channel 28 for noise-reduction treatment and is isolated from the device.

[0068] Therefore, the regeneration function of the energy-saving purification valve device with a dual electromagnetic structure of the present application can be realized, and the endurance of the drying cylinder is solved economically, making the device highly practical in application.

[0069] In addition, the above-mentioned integrated one-way shut-off valve 14 can prevent the solenoid valve port, such as the valve port sealing block 8, from maintaining pressure for a long time when the air pressure is too high, thereby saving costs, reducing the difficulty of assembly and maintenance, and contributing to economic and practical value.

[0070] Working condition 7: Solenoid valve return operation

[0071] After working condition 5, if it is determined that working condition 6 is not necessary, the following control can also be performed: disconnect the electrical signal from the ECU, restore the second valve body cut-off output port 62 to normal closing, stop the cut-off working condition, enter the return-to-close mode, that is, resume air intake from the air compressor.

[0072] Dual damping function design of solenoid valve

[0073] like Figure 6 As shown, the dual electromagnetic structure 7 in the energy-saving purification valve device with a dual electromagnetic structure of the present application may include a soft damping block 12 , weak vibration isolation springs 9 , 11 on both sides, and a supporting damping block 10 .

[0074] The above-mentioned bidirectional damping vibration isolation design increases the function of consuming vibration energy, avoids the excessive fatigue effect of the vibration frequency generated by each electromagnetic opening and closing action on the nearby rigid structure, and is beneficial to the life of the electromagnetic structure valve port and the overall structure.

[0075] Its working principle is as follows: during vehicle operation, for any situation of the dual electromagnetic structure 7, the valve port sealing block 8 and the electromagnetic structure valve port 73 are in a normally closed state due to the pressure of the electromagnetic structure pressure spring 18. When the ECU gives an electrical signal, i.e., the electromagnetic coil is energized, the electromagnetic structure moves relatively to the normally open state under the action of the magnetic field, and finally, after reaching the limit point, the soft damping block 12 is hit and vibration energy is generated. Part of the energy is absorbed by the soft damping block 12 for the first time, and then the vibration isolation weak springs 9, 11 and the support damping block 10 on both sides will use the vibration energy to perform nonlinear reciprocating motion, consuming a large amount of vibration energy for the second time. After the frequency is reduced, the weak energy can only be transmitted to the device to a small extent.

[0076] Design of breathing function of solenoid valve

[0077] In addition, the dual electromagnetic structure 7 may further include an excretion breathing channel 30, a first electromagnetic structure breathing channel 31, a second electromagnetic structure breathing channel 33 and a connecting breathing channel 34 separated by the valve body 2 and the second valve body 6. Figure 6 Under the sealing effect of the special-shaped ring 5, the valve body 2 and the second valve body 6 are separated into two parts to form an excretion breathing channel 30. The excretion breathing channel 30, the first electromagnetic structure breathing channel 31 and the second electromagnetic structure breathing channel 33 are connected to the breathing channel 34 and are simultaneously connected and sealed and isolated from the atmosphere. The excretion breathing channel 30 is connected to the excretion channel 28 inside the valve body 2 and is isolated from the atmosphere. The excretion breathing channel 30, the first electromagnetic structure breathing channel 31 and the second electromagnetic structure breathing channel 33 are connected to the breathing channel 34 and are simultaneously connected and sealed and isolated from the atmosphere. Through the above structure, a breathing cycle can be provided in the electromagnetic structure to prevent dust accumulation from clogging the electromagnetic valve port. Through the dust-proof internal breathing structure, the problem of failure caused by dust clogging the electromagnetic valve port during the use of the device can be reduced, thereby improving the life of the device.

[0078] In addition, the above-mentioned breathing structure can share the function of the muffler by connecting the discharge breathing channel 30 with the discharge channel 28 inside the valve body 2 and isolating it from the atmosphere. The air in the discharge cavity is the air sent by the air compressor. Due to the filtering effect of the muffler, its cleanliness is better than that of the general outside air. Therefore, the connection of the breathing hole to the discharge cavity is at least better than direct connection with the outside atmosphere.

[0079] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An energy-saving purification valve device with a dual electromagnetic structure, characterized in that: It comprises a device input port (301), a drying filter cartridge (1), a valve body (2) and a dual electromagnetic structure (7); the valve body (2) comprises a centrifugal oil separator with a spiral flow channel (22), an external cavity (20), a valve body air intake channel (21) and a discharge channel (28); compressed air enters the valve body air intake channel (21) in a forward direction through the device input port (301), the spiral flow channel (22) and the drying filter cartridge (1), and then is transported to the brake pipeline in one direction and introduced into the dual electromagnetic structure (7) in the other direction. The dual electromagnetic structure (7) comprises a soft damping block (12) located on one side of the bottom of the reciprocating motion path of the closing member, weak vibration isolation springs (9, 11) located on both sides of the reciprocating motion path of the closing member, and a support damping block (10) located on the opposite side of the bottom of the reciprocating motion path of the closing member. When the ECU gives an electrical signal, the soft damping block (12) is impacted after reaching a limit point to generate vibration energy, a portion of which is absorbed by the soft damping block (12) for the first time, and then the weak vibration isolation springs (9, 11) and the support damping block (10) on both sides use the vibration energy to perform nonlinear reciprocating motion, consuming a large amount of vibration energy for the second time.

2. The energy-saving purification valve device with a dual electromagnetic structure according to claim 1, characterized in that: The valve body (2) further comprises an integrated one-way shut-off valve (14), and the electromagnetic structure (7) is connected to the valve body (2) via the integrated one-way shut-off valve (14).

3. The energy-saving purification valve device with a dual electromagnetic structure according to claim 2, characterized in that: The double electromagnetic structure (7) is provided with a return valve port (75) in the shape of a protruding circular ring, and is coaxially matched with a one-way valve hole (78) corresponding to an integrated one-way shut-off valve (14) in the valve body (2) at an arbitrary angle, thereby performing a first positioning of the double electromagnetic structure (7) and the valve body (2).

4. The energy-saving purification valve device with a dual electromagnetic structure according to claim 3 is characterized in that: The bolts (95) are passed through at least two mounting holes in sequence to thread the valve body (2) and the dual electromagnetic structure (7), thereby performing a second positioning of the dual electromagnetic structure (7) and the valve body (2).

5. The energy-saving purification valve device with a dual electromagnetic structure according to claim 1, characterized in that: The dual electromagnetic structure (7) comprises a special-shaped air inlet cavity (71) connected to the valve body (2), a special-shaped ring (5), a second valve body (6), a second valve body reflux output port (61) and a second valve body cut-off output port (62), and a valve port sealing block (8) and an electromagnetic structure valve port (73) which are in a normally closed state due to the pressure of an electromagnetic structure pressure spring (18).

6. The energy-saving purification valve device with a dual electromagnetic structure according to claim 5, characterized in that: The valve body (2) has a cut-off control chamber channel (27) and a cut-off piston valve assembly (16). During the cut-off operation, the ECU gives an electrical signal, and the electromagnetic structure valve port (73) changes from normally closed to normally open. The special-shaped air intake chamber (71) of the electromagnetic structure supplies compressed air to the cut-off output port (62) of the second valve body, and then reaches the cut-off control chamber channel (27). At this time, it is divided into two paths, one of which is output to the air compressor control port (302) associated with the stop valve of the air compressor, and the other is used to open the cut-off piston valve assembly (16), so that the device input port (301) and the discharge channel (28) of the valve body (2) are indirectly connected, and the compressed air directly flows to the discharge channel (28).

7. The energy-saving purification valve device with a dual electromagnetic structure according to claim 6, characterized in that: The valve body (2) comprises a valve body reflux input channel (29), a weak spring (15), a valve body reflux output channel (210) and a valve body air inlet channel (21). When entering the regeneration cycle operation after the cut-off operation, the ECU gives an electrical signal to control the valve port sealing block (8) of the second valve body reflux output port (61) to change from normally closed to normally open, and compressed gas enters from the valve body reflux input channel (29), overcomes the weak spring (15), opens and passes through the integrated one-way shut-off valve (14), and the compressed air with limited flow rate per unit time enters the valve body air inlet channel (21) in the reverse direction from the valve body reflux output channel (210), and then enters the drying filter cartridge (1) in the reverse direction, and enters the valve body (2) and leads to the discharge channel (28).

8. The energy-saving purification valve device with a dual electromagnetic structure according to claim 1, characterized in that: The dual electromagnetic structure (7) further comprises an excretion breathing channel (30), a first electromagnetic structure breathing channel (31), a second electromagnetic structure breathing channel (33) and a connecting breathing channel (34) which are separated by the valve body (2) and the second valve body (6); the excretion breathing channel (30) is connected to the inside of the valve body (2) and isolated from the atmosphere; the excretion breathing channel (30), the first electromagnetic structure breathing channel (31) and the second electromagnetic structure breathing channel (33) are simultaneously connected to the connecting breathing channel (34) and are sealed and isolated from the atmosphere.

9. The energy-saving purification valve device with a dual electromagnetic structure according to claim 8, characterized in that: The exhaust breathing passage (30) is connected to the exhaust passage (28) of the valve body (2) inside the valve body (2) and is isolated from the atmosphere.

10. The energy-saving purification valve device with a dual electromagnetic structure according to claim 8, characterized in that: It also includes a sound-absorbing and filtering structure (13) in communication with the drainage channel (28).

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