CN210978499U - Double-loop pneumatic control device capable of being controlled independently - Google Patents
Double-loop pneumatic control device capable of being controlled independently Download PDFInfo
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- CN210978499U CN210978499U CN201921772348.7U CN201921772348U CN210978499U CN 210978499 U CN210978499 U CN 210978499U CN 201921772348 U CN201921772348 U CN 201921772348U CN 210978499 U CN210978499 U CN 210978499U
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Abstract
The utility model relates to a but single control's two return circuits pneumatic control device, including two solenoid valves I, two sets of automatically controlled executive component, two sets of pneumatic valve core, valve body, PCB control panel, CAN communication connector, baroceptor, valve gap, atmospheric pressure detection chamber, core vent and discharge valve. The pneumatic valve core assembly, the electromagnetic valve assembly and the execution assembly of the pneumatic control device have simple structures and small occupied space, and can be installed or replaced in a modularized way; the double loops share one air inlet channel to ensure the consistency of air inlet pressure; air intake and exhaust between the double loops are not interfered with each other, so that the air pressure of a single air path is conveniently and accurately controlled; most parts can be used universally, additional connectors and controllers are not needed, and the manufacturing and maintenance cost of the single machine is reduced. The controller can independently control each air circuit, has simple structure, small volume, good interchangeability and universality of parts and low cost, and can accurately control the air pressure of each loop in real time.
Description
Technical Field
The utility model belongs to the technical field of engine and emission thereof, concretely relates to but two return circuit pneumatic control device of independent control.
Background
With the continuous promotion of national energy saving and emission reduction concepts and increasingly strict emission regulations, the technical requirements on the field of automobile parts, particularly engines and the field of emission thereof are higher and higher. Ordinary mechanical control parts or switch type simple electric control parts are not suitable for the prior technical precision, and electric control driving or motor driving becomes the mainstream of the current automobile part field, and the automobile part has a series of advantages of small volume, light weight, high driving control precision, no pollution and the like.
At present, the integrated pneumatic control device is mainly used for parts such as a gearbox and a brake of an automobile and the like as shown in the attached drawings 1 and 2, the part shown in the figure 1 belongs to a two-position three-way valve, only simple power-on and power-off can be realized to realize gas supply, and the integrated double-circuit valve in the figure 2 can not be applied to parts needing accurate control of air pressure, has three groups of control armatures, needs to control power-on and power-off of different armatures and needs to combine different armatures to realize the functions of pressure increasing, pressure maintaining and pressure reducing, and simultaneously, a single circuit needs to be matched with an independent air inlet, an air outlet and an air outlet, so that the factors such as the whole size. No reports are known about devices that implement the individual control and execution of multiple circuits in an integrated manner.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a double-loop pneumatic control device capable of being controlled independently, which solves the technical problems that each gas circuit is controlled independently and the pressure of each loop CAN be controlled accurately and timely, realizes the parameter requirements under different working conditions by combining an electric control execution part, a pneumatic valve core part and a CAN communication control element, and CAN realize the independent control and execution of a plurality of loops by an integration scheme; the controller can independently control each air circuit, has simple structure, small volume, good interchangeability and universality of parts and low cost, and can accurately control the air pressure of each loop in real time.
The utility model aims at realizing through the following technical scheme:
an individually controllable dual-circuit pneumatic control device, comprising: the pneumatic control valve mainly comprises an electromagnetic valve I1, two groups of electric control executing assemblies 3, two groups of pneumatic valve cores 4, a valve body 6, an electromagnetic valve II 13, a PCB control panel 15, a CAN communication connector 16, an air pressure sensor 18, a valve cover 19, an air pressure detection cavity 21, an exhaust plug 22 and an exhaust valve 23;
the electromagnetic valves I1 and II 13 are symmetrically arranged in the valve body 6, one side of each group of electric control execution assemblies 3 is respectively fixed with the electromagnetic valves I1 and II 13, the other side of each group of electric control execution assemblies 3 is provided with a group of pneumatic valve cores 4, each group of electric control execution assemblies 3 and the pneumatic valve cores 4 adjacent to the electric control execution assemblies are jointly arranged in a working cavity 7 of the valve body 6, and the pneumatic valve cores 4 can be pushed to be in an air inlet position, a pressure maintaining position or an air exhaust position; the valve body 6 is also provided with a PCB control board 15, and the connector pin 17 is welded with the PCB control board 15;
the valve cover 19 is fixedly connected with the CAN communication connector 16 through a bolt and is connected with the valve body 6 through a bolt, and the CAN communication connector 16 is connected with the electromagnetic valve I1 and the electromagnetic valve II 13 through an electromagnetic valve wiring terminal 14;
the bottom of the valve body 6 is fastened with an exhaust valve 23 through a bolt, an exhaust plug 22 is installed, and the exhaust plug 22 is communicated with a valve body cavity 24 through a vent hole 11; the air pressure detection cavity 21 is communicated with the air pressure sensor 18.
The air inlet 9, the exhaust port 2, the air outlet I8 and the air outlet II 10 are arranged in the valve body 6, and the air outlet I8 and the air outlet II 10 are hollowed out from the working cavity 7;
the pneumatic valve core 4 is in the air inlet position, and the working cavity 7 is communicated with the air inlet 9; the pneumatic valve core 4 is in a pressure maintaining position, and the working cavity 7 is disconnected with the air inlet 9 and the air outlet 2; the pneumatic valve core 4 is in the exhaust position, and working chamber 7 and air inlet 9 disconnection, working chamber 7 and gas vent I2 UNICOM.
Furthermore, the solenoid valve I1 and the solenoid valve II 13 are connected with the valve body 6 through pins.
Furthermore, the solenoid valve I1 and the solenoid valve II 13 are connected with the valve body 6 through bolts.
Further, the PCB control board 15 and the valve body 6 are sealed through a rubber O-shaped ring.
Further, a seal ring 20 is provided between the air pressure sensor 18 and the air pressure detection chamber 21.
Compared with the prior art, the invention has the beneficial effects that:
the pneumatic valve core assembly, the electromagnetic valve assembly and the execution assembly of the separately controllable double-loop pneumatic control device have simple structures, small occupied space and modularized installation or replacement; the double loops share one air inlet channel to ensure the consistency of air inlet pressure; air intake and exhaust between the double loops are not interfered with each other, so that the air pressure of a single air path is conveniently and accurately controlled; most parts can be used universally, additional connectors and controllers are not needed, and the manufacturing and maintenance cost of the single machine is reduced. The controller can independently control each air circuit, has simple structure, small volume, good interchangeability and universality of parts and low cost, and can accurately control the air pressure of each loop in real time.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.
FIG. 1 is a schematic structural diagram of a large-flow pneumatic dual electromagnetic valve for a pneumatic AMT transmission in the prior art;
FIG. 2 is a schematic diagram of an integrated EBS rear axle braking device and a vehicle incorporating the same in the prior art;
FIG. 3 is a cross-sectional view of the gas path of the present invention;
FIG. 4 is a sectional view of the CAN communication of the present invention;
FIGS. 5-6 are schematic views of the single-controllable dual-circuit pneumatic control device according to the present invention;
FIG. 7 is a schematic view of the intake path of the present invention;
fig. 8 is a schematic view of the exhaust path of the present invention.
In the figure, 1, an electromagnetic valve I2, an exhaust port I3, an electric control execution assembly 4, a pneumatic valve core 5, a hole I6, a valve body 7, a working chamber 8, an exhaust port I9, an air inlet 10, an air outlet II 11, a vent hole 12, a hole II 13, an electromagnetic valve II 14, an electromagnetic valve wiring terminal 15, a PCB control panel 16, a CAN communication connector 17, a connector pin 18, an air pressure sensor 19, a valve cover 20, an air pressure sensor sealing ring 21, an air pressure detection chamber 22, an exhaust plug 23, an exhaust valve 24 and a valve body chamber are arranged.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 3-6, the utility model discloses but single control's two return circuit pneumatic control device mainly comprises proportion solenoid valve I1 and solenoid valve II 13, automatically controlled execution subassembly 3, pneumatic valve core subassembly 4, valve body 6, PCB control panel 15, CAN communication connector 16, baroceptor 18, valve gap 19, bleed off 22, discharge valve 23.
The electromagnetic valve I1 and the electromagnetic valve II 13 are symmetrically arranged in the valve body 6, the electromagnetic valve I1 and the electromagnetic valve II 13 are connected with the valve body 6 through pins or bolts, one side of each group of electric control execution assemblies 3 is respectively fixed with the electromagnetic valve I1 and the electromagnetic valve II 13, the other side of each group of electric control execution assemblies 3 is provided with a group of pneumatic valve cores 4, each group of electric control execution assemblies 3 and the pneumatic valve cores 4 adjacent to the electric control execution assemblies are jointly arranged in a working cavity 7 of the valve body 6, and the pneumatic valve cores 4 can be pushed to be located at an air inlet position, a pressure maintaining position or an air exhaust position; still be equipped with PCB control panel 15 in the valve body 6, seal through rubber O type circle between PCB control panel 15 and the valve body 6. The connector pin 17 is welded with the PCB control board 15;
the valve cover 19 is fixedly connected with the CAN communication connector 16 through a bolt and is connected with the valve body 6 through a bolt, and the CAN communication connector 16 is connected with the electromagnetic valve I1 and the electromagnetic valve II 13 through an electromagnetic valve wiring terminal 14;
the bottom of the valve body 6 is fastened with an exhaust valve 23 through a bolt, an exhaust plug 22 is installed, and the exhaust plug 22 is communicated with a valve body cavity 24 through a vent hole 11; the air pressure detection cavity 21 is communicated with the air pressure sensor 18.
The air inlet 9, the exhaust port 2, the air outlet I8 and the air outlet II 10 are arranged in the valve body 6, and the air outlet I8 and the air outlet II 10 are hollowed out from the working cavity 7;
the pneumatic valve core 4 is in the air inlet position, and the working cavity 7 is communicated with the air inlet 9; the pneumatic valve core 4 is in a pressure maintaining position, and the working cavity 7 is disconnected with the air inlet 9 and the air outlet 2; the pneumatic valve core 4 is in the exhaust position, and working chamber 7 and air inlet 9 disconnection, working chamber 7 and gas vent I2 UNICOM.
In the figure, the hole I5 and the hole II 6 are processing process holes, so that a cutter can conveniently enter the valve body 6 to process an air inlet channel.
Since the air pressure detection chamber 21 is connected to the working chamber 7, it is necessary to cover the gap between the air pressure sensor 18 and the air pressure detection chamber 21 by the packing 20 in order to prevent the leakage of the working gas.
Processing and assembling:
the valve body 6 and the valve cover 19 are finished by casting or machining, the pneumatic valve core assembly 4 is installed in the working cavity 7, then the electric control execution assembly 3 is installed, finally, the electromagnetic valve I1 or the electromagnetic valve II 13 is installed in the valve body 6, and the electromagnetic valve and the valve body 6 can be connected in a fastening mode such as a pin or a bolt.
After the pneumatic valve core 4 and the electric control executing assembly 3 are installed, a PCB control board 15 is installed in the valve body 6, wherein the PCB control board 15 comprises an electromagnetic valve wiring terminal 14 and other electronic components, and the PCB control board and the valve body 15 are sealed through a rubber O-shaped ring.
The valve cover 19 is tightly connected with the CAN communication connector 16 through bolts and is connected with the valve body 6 through bolts, and the connector pins 17 are welded with the PCB control board 15.
Then, the air release valve 23 is fastened at the bottom of the valve body 6 through a bolt, and the air release plug 22 is installed, wherein the air release plug 22 is communicated with the valve body cavity 24 through the air vent hole 11, so that the air leaked into the valve body cavity 24 is discharged out of the body in real time.
The working principle is as follows: taking the solenoid valve i 1 as an example, since the pneumatic valve core 4 can realize the three-position three-way function, each air path can realize three working states of air intake, pressure maintaining and air exhaust.
In the air inlet stage, the pneumatic valve core 4 is located in an air inlet state, the air outlet 2 and the pneumatic valve core 4 are kept normally closed, the air inlet 9 is kept normally open through the pneumatic valve core 4 and the working cavity 7, hollow processing is adopted between the working cavity 7 and the air outlet I8, the air flow path is the air inlet 9 → the pneumatic valve core 4 → the working cavity 7 → the air outlet I8, and the air path diagram is shown in fig. 7.
And in the pressure maintaining stage, the pneumatic valve core 4 is in a pressure maintaining state, and the air inlet 9, the air outlet 2 and the pneumatic valve core 4 are all kept in a normally closed state.
In the exhaust stage, the pneumatic valve core 4 is in the exhaust state, the air inlet 9 and the pneumatic valve core 4 are kept normally closed, the air outlet 2 is kept normally open through the pneumatic valve core 4 and the working cavity 7, the air in the working cavity 7 and the air outlet i 8 is exhausted outwards through the air outlet 2, the air flow path is air outlet i 8 → working cavity 7 → pneumatic valve core 4 → air outlet 2, and the air path diagram is shown in fig. 8.
The utility model discloses but single control's two return circuit pneumatic control device has contained two sets of identical solenoid valves, automatically controlled executive component 3 and pneumatic valve core 4, and all subassemblies can realize the function of tribit tee bend through specific assembly method combination together on it. The pneumatic control device is provided with an air inlet 9, an air outlet 2 and two air outlets, namely an air outlet I8 and an air outlet II 10, wherein the air inlet 9 is shared by two loops, so that the synchronism and consistency of air pressure input at two sides can be improved, a large part of gas connecting pipelines are reduced, and the risk of gas leakage is reduced.
In the double-runner turbocharger, different turbine runners need to be controlled independently, namely, the pressure of an air outlet of a pneumatic control device needs to be calculated accurately so as to accurately control the position of a valve of the turbocharger, different air pressures correspond to different opening degrees of the valve of the turbocharger, and the air outlet is connected with a diaphragm valve so that the air pressure can be converted into linear motion.
Through the accurate control to the solenoid valve duty cycle, can realize that pneumatic valve core 4 is in three kinds of different functions of air inlet state, pressurize state, exhaust state. Because the structures of the two-circuit solenoid valves are completely consistent, the operation principle of only one side is explained:
and (3) air inlet process: when diaphragm valve need impel forward, gas pressure need be improved to gas outlet I8, ECU sends actuating signal through CAN communication connector 16, makes I1 action of solenoid valve through solenoid valve binding post 14, and solenoid valve I1 is adjusted automatically controlled execution subassembly 3 and is right, and pneumatic valve core 4 is in the position of admitting air, working chamber 7 and air inlet 9 UNICOM, and high-pressure gas gets into working chamber 7 and gas outlet I8 for the gas pressure of gas outlet I8 constantly risees.
And (3) pressure maintaining process: when the diaphragm valve needs to keep the current position, air pressure signals of the working cavity 7 and the air outlet I8 are fed back to the ECU through the air pressure sensor 18, when the preset pressure is reached, the electromagnetic valve I1 adjusts and executes structure fine adjustment, the pneumatic valve core 4 is located at the pressure maintaining position, the working cavity 7 and the air inlet 9 are in a disconnected state, and simultaneously the air outlet 2 is also in a disconnected state, meanwhile, the air pressure signals of the air pressure sensor 18 are monitored in real time, if the pressure is too high or too low, the PCB control board can automatically send an adjusting instruction to be switched to an air inlet state or an air outlet state, and the pressure of the working cavity 7 and the air outlet I8 is kept in a preset.
And (3) an exhaust process: when the diaphragm valve needs to retract backwards, the ECU sends an action signal through the CAN communication connector 16, the electromagnetic valve I1 adjusts the electric control execution assembly 3 to enable the pneumatic valve core 4 to be in an exhaust position, the working cavity 7 and the air inlet 9 are in a disconnected state, the working cavity 7 is communicated with the air exhaust port 2, air in the air outlet I8 is exhausted out of the valve body 6 through the pneumatic valve core 4 and the air exhaust port 2, and the air pressure of the air outlet I8 is continuously reduced.
The three states can be switched at will without transition through an intermediate process, and each loop can be controlled simultaneously without mutual interference.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. An individually controllable dual-circuit pneumatic control device, comprising: the pneumatic control valve mainly comprises an electromagnetic valve I (1), two groups of electric control execution assemblies (3), two groups of pneumatic valve cores (4), a valve body (6), an electromagnetic valve II (13), a PCB control panel (15), a CAN communication connector (16), an air pressure sensor (18), a valve cover (19), an air pressure detection cavity (21), an exhaust plug (22) and an exhaust valve (23);
the electromagnetic valve I (1) and the electromagnetic valve II (13) are symmetrically arranged in the valve body (6), one side of each group of electric control execution components (3) is respectively fixed with the electromagnetic valve I (1) and the electromagnetic valve II (13), the other side of each group of electric control execution components (3) is provided with a group of pneumatic valve cores (4), each group of electric control execution components (3) and the pneumatic valve cores (4) adjacent to the electric control execution components are jointly arranged in a working cavity (7) of the valve body (6), and the pneumatic valve cores (4) can be pushed to be in an air inlet position, a pressure maintaining position or an air exhaust position; the valve body (6) is also internally provided with a PCB control board (15), and a connector pin (17) is welded with the PCB control board (15);
the valve cover (19) is fixedly connected with the CAN communication connector (16) through a bolt and is connected with the valve body (6) through a bolt, and the CAN communication connector (16) is connected with the electromagnetic valve I (1) and the electromagnetic valve II (13) through an electromagnetic valve wiring terminal (14);
the bottom of the valve body (6) is fastened with an exhaust valve (23) through a bolt, an exhaust plug (22) is installed, and the exhaust plug (22) is communicated with a valve body cavity (24) through a vent hole (11); the air pressure detection cavity (21) is communicated with an air pressure sensor (18);
the valve also comprises an air inlet (9), an air outlet I (2), an air outlet I (8) and an air outlet II (10) which are arranged in the valve body (6), wherein the air outlet I (8), the air outlet II (10) and the working cavity (7) are hollowed;
the pneumatic valve core (4) is positioned at an air inlet position, and the working cavity (7) is communicated with the air inlet (9); the pneumatic valve core (4) is positioned at a pressure maintaining position, and the working cavity (7) is disconnected with the air inlet (9) and the exhaust port I (2); the pneumatic valve core (4) is in an exhaust position, the working cavity (7) is disconnected with the air inlet (9), and the working cavity (7) is communicated with the exhaust port I (2).
2. An individually controllable dual-circuit pneumatic control device as claimed in claim 1, wherein: the solenoid valve I (1) and the solenoid valve II (13) are connected with the valve body (6) through pins.
3. An individually controllable dual-circuit pneumatic control device as claimed in claim 1, wherein: the solenoid valve I (1) and the solenoid valve II (13) are connected with the valve body (6) through bolts.
4. An individually controllable dual-circuit pneumatic control device as claimed in claim 1, wherein: the PCB control panel (15) and the valve body (6) are sealed through a rubber O-shaped ring.
5. An individually controllable dual-circuit pneumatic control device as claimed in claim 1, wherein: and a sealing ring (20) is arranged between the air pressure sensor (18) and the air pressure detection cavity (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772348.7U CN210978499U (en) | 2019-10-22 | 2019-10-22 | Double-loop pneumatic control device capable of being controlled independently |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772348.7U CN210978499U (en) | 2019-10-22 | 2019-10-22 | Double-loop pneumatic control device capable of being controlled independently |
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| CN210978499U true CN210978499U (en) | 2020-07-10 |
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| CN201921772348.7U Active CN210978499U (en) | 2019-10-22 | 2019-10-22 | Double-loop pneumatic control device capable of being controlled independently |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102382A (en) * | 2019-12-26 | 2020-05-05 | 一汽解放汽车有限公司 | Intelligent stepless electromagnetic valve |
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2019
- 2019-10-22 CN CN201921772348.7U patent/CN210978499U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102382A (en) * | 2019-12-26 | 2020-05-05 | 一汽解放汽车有限公司 | Intelligent stepless electromagnetic valve |
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