Electrically controlled adjustable air valve

Abstract

The application discloses an electric control type adjustable air valve, which comprises a valve body, at least two stop blocks, a valve seat, a valve core, a lift limiter and a first spring and a second spring. The top of the valve body is provided with an air inlet, and the top of the valve body is provided with a first coil. The stop blocks are distributed on the inner side wall of the valve body. The valve seat is arranged below the valve body, and the valve body and the valve seat jointly form a containing cavity. The valve seat is provided with a through hole. The valve core is movably arranged in the through hole of the valve seat, and an exhaust passage can be formed between the valve core and the through hole. The top of the lift limiter is connected to the inner top of the valve body through the first spring, and the bottom of the lift limiter is arranged above the valve core through the second spring. The stop blocks are located outside the lift limiter. The application can adapt to different ranges of air intake working conditions. The lift height is adjusted by arranging the electromagnetic induction type lift limiter, so as to adapt to different air inlet pressures and exhaust pressures. By changing the electrification current intensity and the magnetic force, the height of the lift limiter is adjusted, so that the vibration and impact damage are avoided.

Description

Technical Field

[0001] This invention relates to the field of pneumatic valves. More specifically, this invention relates to an electrically controlled adjustable pneumatic valve. Background Technology

[0002] Conventional air valves are all passively controlled. When the intake pressure varies within a certain range, the valve is designed with the intermediate pressure as the operating point, and the valve core lift and spring parameters are designed accordingly. During use, the valve automatically adapts to the operating conditions based on the intake and exhaust conditions. However, the lift and spring parameters of this type of air valve are fixed. When the intake pressure is much lower than the design point, the exhaust valve is prone to chattering. When the intake pressure is much higher than the design point, the exhaust valve response speed decreases, and the impact when the valve core sits down is large, which can easily damage the valve plate and valve seat. Summary of the Invention

[0003] To achieve these objects and other advantages according to the invention, a preferred embodiment of the invention provides an electrically controlled adjustable air valve, comprising:

[0004] The valve body has an air inlet at its top and a first coil at its top, which can be connected to an external power source.

[0005] At least two stop blocks are distributed on the inner wall of the valve body;

[0006] A valve seat is disposed below the valve body, and the valve body and the valve seat together form a receiving cavity; the valve seat has a through hole;

[0007] A valve core is movably inserted into the through hole of the valve seat, and an air intake channel can be formed between the valve core and the through hole;

[0008] The top of the lift limiter is connected to the top of the valve body via a first spring, and the bottom of the lift limiter is disposed above the valve core via a second spring; the stop block is located outside the lift limiter.

[0009] When the first coil is not energized, the first spring is in a stretched state, the second spring is in a compressed state, the stop block is in contact with the lift limiter, and restricts the lift limiter from retracting.

[0010] Preferably, the two surfaces of the stop block and the lift limiter that come into contact with each other are inclined to form a matching inner inclined surface and an outer inclined surface, and the inner inclined surface of the stop block and the outer inclined surface of the lift limiter can be in seamless contact.

[0011] Preferably, the top of the lift limiter is recessed to form a receiving groove, the first spring is disposed in the receiving groove, and one end is fixedly connected to the bottom of the receiving groove.

[0012] Preferably, the valve body is provided with a valve cover on the top, and the valve cover has the exhaust port.

[0013] Preferably, the lift limiter is provided with a first magnet. When the first coil is energized, the magnetic poles generated by it are the same as the magnetic poles on the upper surface of the first magnet. The first coil generates a thrust, which will push the lift limiter to move downward. The magnetic thrust is greater than the sum of the elastic force of the first spring and the airflow thrust at this time.

[0014] Preferably, the device further includes a third spring, and the stop block is connected to the inner wall of the valve body via the third spring. When the first coil is energized, the magnetic force will push the lift limiter downward. At this time, the third spring will push the stop block inward, thereby causing the stop block to abut against the lift limiter, preventing the lift limiter from retracting. At this time, the lift limiter will reach the predetermined position and cut off the energization of the first coil.

[0015] Preferably, the device further includes a second coil, and the stop block is also provided with a second magnet. When the first coil and the second coil are not energized, the first spring is in a stretched state, the second spring is in a compressed state, the stop block contacts the lift limiter, and restricts the lift limiter from retracting.

[0016] Preferably, when the first coil and the second coil are energized, the magnetic poles they generate are opposite to the outer magnetic poles of the second magnet. The second coil will generate an attractive force, pulling the stop block outward, while the thrust generated by the first coil will push the lift limiter downward until the lift limiter reaches equilibrium under the action of the thrust of the first coil, the spring force of the first spring, and the airflow thrust. At this time, the lift limiter will remain in equilibrium. Then, the energization of the second coil is cut off, the magnetic force of the second coil disappears, and the stop block resets under the action of the spring force, blocking the lift limiter and locking it.

[0017] Preferably, the system further includes a controller that controls the current intensity of the first coil and the second coil, thereby changing the magnitude of the magnetic force.

[0018] Preferably, it also includes a monitoring module that monitors the intake temperature and intake pressure of the air inlet, and the controller calculates the adjustment amount of the lift limiter based on the intake pressure, intake temperature, design pressure and design temperature.

[0019] The present invention offers at least the following advantages: The electrically controlled adjustable air valve of the present invention is an actively controlled compressor air valve, adaptable to various intake conditions. By incorporating an electromagnetic induction-type lift limiter to adjust the lift height, it adapts to different intake and exhaust pressures. The height of the lift limiter is adjusted by changing the intensity of the energized current, thereby altering the magnetic force. This prevents flutter and impact damage.

[0020] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the electrically controlled adjustable air valve in this invention. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0023] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious modifications will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0024] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, the above terms should not be construed as limiting this invention.

[0025] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0026] like Figure 1 As shown, a preferred embodiment of the present invention provides an electrically controlled adjustable air valve, comprising:

[0027] The valve body 100 has an exhaust port on its top. A first coil 200 is provided on the top of the valve body 100. The first coil 200 can be connected to an external power source. A cover plate 900 is placed on the top of the first coil 200 to enclose the first coil 200. A valve cover 1300 is provided on the top of the valve body 100, and the exhaust port is provided on the valve cover 1300.

[0028] At least two stop blocks 300 are distributed on the inner wall of the valve body 100;

[0029] A valve seat 400 is disposed below the valve body 100. The valve body 100 is hollow inside, and the valve body 100 and the valve seat 400 together form a receiving cavity. The valve seat 400 has a through hole.

[0030] The valve core 500 is movably inserted into the through hole of the valve seat 400, and an air intake channel can be formed between the valve core 500 and the through hole;

[0031] The top of the lift limiter 600 is connected to the top of the valve body 100 via a first spring 700, and the bottom of the lift limiter 600 is disposed above the valve core 500 via a second spring 800; the stop block 300 is located outside the lift limiter 600.

[0032] When the first coil 200 is not energized, the first spring 700 is in a stretched state, the second spring 800 is in a compressed state, the stop block 300 and the lift limiter 600 are in contact and abut against each other, and the lift limiter 600 is restricted from retracting.

[0033] The lift limiter 600 is equipped with a first magnet 610. When the first coil 200 is energized, the magnetic poles generated by it are the same as the magnetic poles on the upper surface of the first magnet 610. The first coil 200 generates a thrust, which will push the lift limiter 600 downward. The magnetic thrust is greater than the sum of the elastic force of the first spring 700 and the airflow thrust at this time.

[0034] The device further includes a third spring 1000. The stop block 300 is connected to the inner wall of the valve body 100 via the third spring 1000. When the first coil 200 is energized, the magnetic force will push the lift limiter 600 downward. At this time, the third spring 1000 will push the stop block 300 inward, thereby causing the stop block 300 to abut against the lift limiter 600, preventing the lift limiter 600 from retracting. At this time, the lift limiter 600 will reach the predetermined position and cut off the energization of the first coil 200.

[0035] The device further includes a second coil 1100, and a second magnet 1200 is provided inside the stop block 300. When the first coil 200 and the second coil 1100 are not energized, the first spring 700 is in a stretched state, the second spring 800 is in a compressed state, the stop block 300 contacts the lift limiter 600, and restricts the lift limiter 600 from retracting.

[0036] When the first coil 200 and the second coil 1100 are energized, the magnetic poles they generate are opposite to the outer magnetic poles of the second magnet 1200. The second coil 1100 will generate an attractive force, pulling the stop block 300 outward, while the thrust generated by the first coil 200 will push the lift limiter 600 downward until the lift limiter 600 reaches equilibrium under the action of the thrust of the first coil 200, the spring force of the first spring 700, and the airflow thrust. At this time, the lift limiter 600 will remain in equilibrium. When the energization of the second coil 1100 is cut off, the magnetic force of the second coil 1100 disappears, and the stop block 300 resets under the action of the spring force, blocking the lift limiter 600 and locking it.

[0037] In summary, the process of adjusting the lift of the air valve is as follows: During operation, the first coil 200 and the second coil 1100 are not energized. At this time, the first spring 700 is in a stretched state, while the second spring 800 and the third spring 1000 are in a compressed state. The stop block 300 is in contact with the lift limiter 600, which restricts the retraction of the lift limiter 600. When a signal from the controller is received and lift adjustment is required, the first coil 200 is first energized. The current intensity is calculated based on the current intake pressure and temperature. The first coil 200 generates magnetic force, with the magnetic poles aligned with the upper end of the first magnet 610, thereby generating thrust and causing the lift limiter 600 to move. If the lift limiter 600 is adjusted downwards, the thrust should be greater than the sum of the current elastic force of the first spring 700 and the airflow thrust. At this time, the lift limiter 600 moves downwards, and the third spring pushes the stop block 300 to move synchronously, preventing the lift limiter 600 from retracting. After the lift limiter 600 reaches the predetermined position, the power to the first coil 200 is turned off. If the lift limiter 600 is adjusted upwards, the thrust should be less than the sum of the current elastic force of the first spring 700 and the airflow thrust. At this time, the lift limiter 600 does not move.

[0038] When the second coil 1100 is energized, it generates a magnetic force with its magnetic poles opposite to those of the second magnet, thus creating an attractive force that overcomes the spring force of the third spring 1000, causing the stop block 300 to retract. The lift limiter 600 reaches equilibrium under the action of the thrust of the first coil 200, the spring force of the first spring 700, and the airflow thrust. Then, the power supply to the second coil 1100 is disconnected, the magnetic force of the second coil 1100 disappears, and the stop block 300 resets under the action of the spring force, blocking the lift limiter 600 and shutting off the power supply to the first coil 200.

[0039] In another embodiment, a controller is also included, which controls the current intensity of the first coil 200 and the second coil 1100 to change the magnitude of the magnetic force.

[0040] In another embodiment, a monitoring module is also included, which monitors the intake temperature and intake pressure of the exhaust port, and the controller calculates the adjustment amount of the lift limiter 600 based on the intake pressure, intake temperature, design pressure, and design temperature.

[0041] In another embodiment, the two surfaces of the stop block 300 and the lift limiter 600 that come into contact with each other are inclined to form a matching inner inclined surface and an outer inclined surface, respectively. The inner inclined surface of the stop block 300 and the outer inclined surface of the lift limiter 600 can be in seamless contact, which can maximize the contact area between the stop block 300 and the lift limiter 600, and temporarily fix the lift limiter 600 using the stop block 300.

[0042] In another embodiment, the top of the lift limiter 600 is recessed to form a receiving groove, the first spring 700 is disposed in the receiving groove, and one end is fixedly connected to the bottom of the receiving groove. In this way, the deformation process of the first spring 700 is controlled by the receiving groove, so that the stretching or compression of the first spring is carried out within the receiving groove, and excessive skew is not found.

[0043] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An electrically controlled adjustable air valve, characterized in that, include: The valve body has a first coil at its top, which can be connected to an external power source. At least two stop blocks are distributed on the inner wall of the valve body; A valve seat is disposed below the valve body, and the valve body and the valve seat together form a receiving cavity; the valve seat has a through hole; A valve core is movably inserted into the through hole of the valve seat, and an air intake channel can be formed between the valve core and the through hole; The top of the lift limiter is connected to the top of the valve body via a first spring, and the bottom of the lift limiter is disposed above the valve core via a second spring; the stop block is located outside the lift limiter. When the first coil is not energized, the first spring is in a stretched state, the second spring is in a compressed state, the stop block is in contact with the lift limiter, and restricts the lift limiter from retracting; The lift limiter is equipped with a first magnet. When the first coil is energized, the magnetic poles generated by it are the same as the magnetic poles on the upper surface of the first magnet. The first coil generates a thrust, which will push the lift limiter to move downward. The magnetic thrust is greater than the sum of the elastic force of the first spring and the airflow thrust at this time. The valve further includes a third spring, and the stop block is connected to the inner wall of the valve body through the third spring. When the first coil is energized, the magnetic force will push the lift limiter downward. At this time, the third spring will push the stop block inward, so that the stop block abuts against the lift limiter, making the lift limiter unable to retract. At this time, the lift limiter will reach the predetermined position and cut off the power to the first coil. It further includes a second coil, and the stop block is also provided with a second magnet. When the first coil and the second coil are not energized, the first spring is in a stretched state, the second spring is in a compressed state, the stop block is in contact with the lift limiter, and restricts the lift limiter from retracting. When the first and second coils are energized, the magnetic poles they generate are opposite to the outer magnetic poles of the second magnet. The second coil will generate an attractive force, pulling the stop block outward, while the thrust generated by the first coil will push the lift limiter downward until the lift limiter reaches equilibrium under the action of the thrust of the first coil, the spring force of the first spring, and the airflow thrust. At this time, the lift limiter will remain in equilibrium. Then, the energization of the second coil is cut off, the magnetic force of the second coil disappears, and the stop block resets under the action of the spring force, blocking the lift limiter and locking it.

2. The electrically controlled adjustable air valve according to claim 1, characterized in that, The two surfaces of the stop block and the lift limiter that come into contact with each other are inclined to form a matching inner inclined surface and an outer inclined surface, and the inner inclined surface of the stop block and the outer inclined surface of the lift limiter can make seamless contact.

3. The electrically controlled adjustable air valve according to claim 1, characterized in that, The top of the lift limiter is recessed to form a receiving groove, and the first spring is disposed in the receiving groove, with one end fixedly connected to the bottom of the receiving groove.

4. The electrically controlled adjustable air valve according to claim 1, characterized in that, The valve body is provided with a valve cover on the top, and the valve cover has an exhaust port.

5. The electrically controlled adjustable air valve according to claim 1, characterized in that, It also includes a controller that controls the current intensity of the first coil and the second coil, thereby changing the magnitude of the magnetic force.

6. The electrically controlled adjustable air valve according to claim 5, characterized in that, It also includes a monitoring module, which monitors the intake temperature and intake pressure of the air inlet. The controller calculates the adjustment amount of the lift limiter based on the intake pressure, intake temperature, design pressure, and design temperature.

Images