Electrical terminal and valve terminal integrated control system

Abstract

The invention relates to the technical field of industrial automation, in particular to an electrical terminal and a valve terminal integrated control system, which are characterized in that the electrical terminal comprises a bus module and a module combination, and the module combination comprises at least one or at most nine modules; the pneumatic valve terminal comprises a centralized air supply and exhaust module and a plurality of valve plate modules, and the centralized air supply and exhaust module is arranged on the side close to the electrical terminal and used for communicating with the electrical terminal; the transition module is connected between the module combination and the centralized air supply and exhaust module; wherein the bus module is connected with each module combination through a first connecting piece, the centralized air supply and exhaust module is connected with the plurality of valve plate modules through a second connecting piece, and a first end plate and a second end plate are respectively fixed at two ends of the bus module and the valve plate modules. Through integration of the transition module, the flexibility and expandability of the system are remarkably improved, and combination and flexible configuration of various modules are supported so as to adapt to different industrial scene requirements.

Description

Technical Field

[0001] The present invention relates to the field of industrial automation technology, and particularly to an electrical terminal and valve island integrated control system. Background Art

[0002] Electrical terminals and valve islands are key components in industrial automation control systems. Electrical terminals are mainly responsible for processing and transmitting signals from the upper controller, serving as a bridge between the control system and the actuating equipment; while valve islands are the core components in pneumatic control systems. By integrating multiple pneumatic valves, centralized control of pneumatic components in industrial equipment is achieved. These two parts usually work together for fluid regulation and action execution in automated production lines.

[0003] In the prior art, the connection between electrical terminals and valve islands mostly relies on traditional fieldbus architectures. The two usually complete data and instruction transmission through point-to-point linear connections. This mode has significant limitations: the device connection method is single and cannot support complex topological structures such as star, ring, or mesh; the function modules of electrical terminals and valve islands are separated, with low integration, requiring complex wiring and additional hardware support; the communication rate is low, making it difficult to meet the requirements of multi-device cooperation, real-time feedback, and efficient control in industrial production.

[0004] With the rapid development of industry, higher requirements are put forward for automation systems. Future industrial control systems need to have a highly integrated structure, which can not only simplify the physical connection between electrical terminals and valve islands, but also support various topological structures, improving communication performance and expansion flexibility. Therefore, there is an urgent need for a new type of electrical terminal and valve island integrated control system to solve the above problems in the prior art and meet the needs of modern industry for efficient, intelligent, and flexible control. Summary of the Invention

[0005] In view of at least one of the above technical problems, the present invention provides an electrical terminal and valve island integrated control system, which improves communication performance and expansion flexibility by integrating the electrical terminal and the valve island.

[0006] According to a first aspect of the present invention, there is provided an electrical terminal and valve island integrated control system, comprising: An electrical terminal, including a bus module and a module combination. The module combination includes at least one and at most nine modules. The modules include digital input modules, digital output modules, analog input modules, analog output modules, and io-link master modules; The pneumatic valve island includes a centralized air supply and exhaust module and multiple valve sheet modules. Each of the valve sheet modules includes a solenoid valve, an air circuit board connected to the solenoid valve, a connection circuit board and an indicator light circuit board, and an air inlet and an air outlet opened on the air circuit board and communicating with the solenoid valve. The centralized air supply and exhaust module is arranged on one side close to the electrical terminal for communicating with the electrical terminal; A transition module is connected between the module combination and the centralized air supply and exhaust module for mutual conversion between digital signals in the electrical terminal and electrical signals in the pneumatic valve island; Wherein, the bus module is connected to each of the module combinations through a first connecting piece, the centralized air supply and exhaust module is connected to the multiple valve sheet modules through a second connecting piece, and a first end plate and a second end plate are respectively fixed at both ends of the bus module and the valve sheet module.

[0007] In some embodiments of the present invention, the width of the valve sheet module is 10 mm.

[0008] In some embodiments of the present invention, the solenoid valve includes an internal accommodation space, a valve core sleeved inside the accommodation space and axially relatively movable along the accommodation space, and a fluid inlet and outlet opened on the solenoid valve. The fluid inlet and outlet communicate between the accommodation space and the air circuit board.

[0009] In some embodiments of the present invention, the cross-sections at both ends of the accommodation space are elliptical, and the area of the ellipse is larger than the cross-sectional area of the accommodation space.

[0010] In some embodiments of the present invention, sealing members are provided at both ends of the valve sheet module.

[0011] In some embodiments of the present invention, the inside of the solenoid valve is used to pass positive pressure medium or negative pressure medium.

[0012] In some embodiments of the present invention, the transition module has a first data interface and a second data interface. The first data interface is a pin header, the first data interface is connected to the electrical terminal, the second data interface is a flexible cable, and the flexible cable is connected to the centralized air supply and exhaust module.

[0013] In some embodiments of the present invention, the connection circuit boards between each of the centralized air supply and exhaust modules and each of the valve sheet modules are connected through pin headers, and the connection circuit board and the indicator light circuit board are connected through pin headers.

[0014] In some embodiments of the present invention, there is a first connecting member between each module of the electrical terminal, including a connecting groove provided on the same side of each module, and a connecting block provided on the other side of each module and opposite to the position of the connecting groove. The connecting block protrudes from each module and can extend into the connecting groove.

[0015] In some embodiments of the present invention, the second connecting member includes at least one through hole opened on each module of the pneumatic valve island. The through holes are correspondingly arranged, and a connecting rod passes through the interior of the through holes. The connecting rod is connected between the transition module and the pneumatic valve island. The beneficial effects of the present invention are as follows: The electrical terminal and valve island integrated control system of the present invention improves the flexibility and scalability of the system through modular design, supports the free combination of multiple modules, and adapts to diverse industrial requirements; realizes efficient signal conversion and communication through the centralized air supply and exhaust module and the transition module, ensuring the compatibility and collaborative working ability between the electrical terminal and the pneumatic valve island; improves the stability, reliability, and installation convenience of the system through the setting of the first connecting member, the second connecting member, and the end plate; simplifies the wiring by using integration, optimizes the equipment layout in the industrial field, reduces the deployment cost, and at the same time, the multi-functional module supports the application requirements of complex control tasks, making the system easy to maintain and upgrade, capable of quickly replacing a single module or expanding new functions, thereby reducing the maintenance cost and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 2 It is an exploded view of the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 3 It is a schematic structural diagram of the valve plate module in the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 4 It is a cross-sectional view of the valve plate module in the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 5 It is an exploded view of the valve plate module in the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 6Schematic diagram of the structure of the first data interface and the second data interface in the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 7 Schematic diagram of the structure of the second data interface, the connection circuit board and the indicator light circuit board in the electrical terminal and valve island integrated control system in the embodiment of the present invention; Figure 8 In the embodiment of the present invention Figure 2 Enlarged schematic diagram of the structure at A; Figure 9 Schematic diagram of the structure of the second connecting piece in the electrical terminal and valve island integrated control system in the embodiment of the present invention.

[0018] Reference numerals: 1. Electrical terminal; 11. Bus module; 12. Module combination; 13. First connecting piece; 13a. Connecting groove; 13b. Connecting block; 2. Pneumatic valve island; 21. Centralized air supply and exhaust module; 2a. Valve plate module; 22. Solenoid valve; 22a. Accommodating space; 22b. Spool; 22c. Fluid inlet and outlet; 23. Air circuit board; 23a. Air inlet; 23b. Air outlet; 24. Connection circuit board; 25. Indicator light circuit board; 26. Second connecting piece; 26a. Through hole; 26b. Connecting rod; 3. Transition module; 31. First data interface; 32. Second data interface; 4. First end plate; 5. Second end plate. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] As Figures 1 to 9 shown, the electrical terminal and valve island integrated control system includes: Electrical terminal 1, including a bus module 11 and a module combination 12. The module combination 12 includes at least one and at most nine modules, and the modules include digital input modules, digital output modules, analog input modules, analog output modules, and io-link master modules. It should be noted here that the bus module 11 supports protocols such as PROFINET, EtherCAT, and Modbus TCP.

[0023] Pneumatic valve island 2, including a centralized air supply and exhaust module 21 and multiple valve plate modules 2a. Each valve plate module 2a includes a solenoid valve 22, an air circuit board 23 connected to the solenoid valve 22, a connection circuit board 24, and an indicator light circuit board 25, as well as an air inlet 23a and an air outlet 23b opened on the air circuit board 23 and communicating with the solenoid valve 22. The centralized air supply and exhaust module 21 is arranged on one side close to the electrical terminal 1 for communicating with the electrical terminal 1. It should be noted here that there are many forms of the valve plate module 2a, which can be a two-position five-way valve plate, a three-position five-way valve plate, a quick exhaust valve plate, or other forms of valve plates.

[0024] Transition module 3, connected between the module combination 12 and the centralized air supply and exhaust module 21, for mutual conversion between digital signals in the electrical terminal 1 and electrical signals in the pneumatic valve island 2.

[0025] Among them, the bus module 11 and each module combination 12 are connected through a first connector 13, the centralized air supply and exhaust module 21 and multiple valve plate modules 2a are connected through a second connector 26, and a first end plate 4 and a second end plate 5 are respectively fixed at both ends of the bus module 11 and the valve plate module 2a. It should be noted here that there are many forms of the first connector 13 and the second connector 26, which can be quick-insert type, snap type, threaded connection, or other connection methods.

[0026] As Figure 1 、 Figure 2 shown, the electrical terminal 1 and valve island integrated control system of the present invention improves the flexibility and scalability of the system through modular design, supports the free combination of multiple modules, and adapts to diverse industrial needs; realizes efficient signal conversion and communication through the centralized air supply and exhaust module 21 and the transition module 3, ensuring the compatibility and collaborative working ability between the electrical terminal 1 and the pneumatic valve island 2; improves the stability, reliability, and installation convenience of the system through the settings of the first connector 13, the second connector 26, and the end plates; simplifies the wiring by using integration, optimizes the equipment layout in the industrial field, reduces the deployment cost. At the same time, the multi-functional modules support the application requirements of complex control tasks, making the system easy to maintain and upgrade, capable of quickly replacing individual modules or expanding new functions, thereby reducing the maintenance cost and improving the operation efficiency.

[0027] As Figures 1 to 3 shown, in some embodiments of the present invention, in order to make the pneumatic valve island 2 highly compact, the width of the valve plate module 2a is 10 mm. The width of 10 mm can significantly improve the arrangement density of the valve plate module 2a, enabling more functional modules to be accommodated in the same volume, thereby meeting the high-density control requirements. At the same time, it also reduces the overall size and weight of the system, facilitating on-site installation and layout optimization, while reducing manufacturing and transportation costs. While ensuring compactness, it can still meet the performance requirements of the system for flow rate and gas path smoothness, combining efficiency and reliability.

[0028] As Figure 4 shown, the solenoid valve 22 includes an internal accommodation space 22a, a valve core 22b sleeved inside the accommodation space 22a and axially movable relative to the accommodation space 22a, and fluid inlets and outlets 22c opened on the solenoid valve 22. The fluid inlets and outlets 22c are communicated between the accommodation space 22a and the gas path board 23. By axially moving the valve core 22b in the accommodation space 22a, the on-off switching of the fluid inlets and outlets 22c is realized. When the valve core 22b moves to the open position, the air inlet 23a is communicated with the air outlet 23b, and the fluid flows through the accommodation space 22a to the gas path board 23 and drives the actuator; when the valve core 22b returns to the closed position, the passage between the inlets and outlets is cut off, and the fluid stops flowing.

[0029] To make the flow efficiency of the solenoid valve 22 compatible, as Figure 4 、 Figure 5 shown, the cross-sections at both ends of the accommodation space 22a are oval, and the oval area is larger than the cross-sectional area of the accommodation space 22a. By providing oval accommodation spaces 22a at both ends of the accommodation space 22a, the same flow performance as that of a traditional 14-mm-wide valve plate can be achieved while maintaining a 10-mm valve plate width. Utilizing the hydrodynamic characteristics of the oval cross-section, the resistance and turbulence of fluid flow are effectively reduced, while the effective cross-sectional area of the fluid channel is increased, ensuring efficient flow transmission, making the entire system more compact and suitable for scenarios with limited space in industrial automation.

[0030] To improve the sealing performance of the valve plate module 2a, sealing members are provided at both ends of the valve plate module 2a. It can effectively improve the sealing performance of the pneumatic system, prevent fluid leakage at the module connection, and ensure the efficient operation and stability of the system. This sealing structure can adapt to complex working conditions under high or low pressure environments, reduce energy loss caused by gas leakage, and at the same time enhance the safety and reliability of the entire system.

[0031] In some embodiments of the present invention, the inside of the solenoid valve 22 is used to pass a positive-pressure medium or a negative-pressure medium. The inside of the solenoid valve 22 can pass one of the positive-pressure medium or the negative-pressure medium, and can support the flow of any one of the two media, so that the solenoid valve can be used in a wider range of application scenarios. There is no need to design independent solenoid valve modules for the positive-pressure and negative-pressure media respectively, which can reduce the types of equipment, save material costs and installation space. Whether it is a system that requires a positive-pressure or negative-pressure medium, the same solenoid valve can be used without replacing or adjusting the equipment, thus simplifying the system design and maintenance. The positive-pressure medium can be used to drive actuators such as cylinders and grippers to complete mechanical actions such as pushing, pulling, and clamping; the negative-pressure medium is suitable for vacuum adsorption, fixing, or cleaning operations. It effectively reduces the need for additional equipment and simplifies the system layout and wiring.

[0032] Refer to Figure 6 、 Figure 7 As shown, the transition module 3 has a first data interface 31 and a second data interface 32. The first data interface 31 is a pin header, which is connected to the electrical terminal 1. The second data interface 32 is a flexible cable, which is connected to the centralized air supply and exhaust module 21. The signal transmission connection method between the electrical terminal 1 and the centralized air supply and exhaust module 21 is optimized. The first data interface 31 adopts a pin header design and is directly connected to the electrical terminal 1, ensuring the stability of signal transmission and the convenience of module installation; the second data interface 32 adopts a flexible cable design and is connected to the centralized air supply and exhaust module 21, providing a flexible connection method, which can effectively adapt to the complex spatial layout of the industrial site, reduce the wiring difficulty and the influence of mechanical stress on the connection stability.

[0033] Continue to refer to Figure 6 、 Figure 7 As shown, the connection circuit board 24 between the centralized air supply and exhaust module 21 and each valve plate module 2a is connected by a pin header, and the connection circuit board 24 is connected to the indicator light circuit board 25 by a pin header. The connection method of the pin header improves the modularity and installation convenience of the system, has high-efficiency and reliable electrical contact performance, can ensure the stability of signal transmission, and is convenient for the quick plugging and replacement of modular components, reducing the complexity of installation and maintenance.

[0034] As Figure 8As shown, there is a first connecting member 13 between each module of the electrical terminal 1, including a connecting groove 13a provided on the same side of each module, a connecting block 13b provided on the other side of each module and opposite to the position of the connecting groove 13a. The connecting block 13b protrudes from each module and can extend into the connecting groove 13a. The arrangement of the connecting groove 13a and the connecting block 13b provides an efficient and stable modular assembly method. The connecting block 13b protrudes from each module and can accurately extend into the connecting groove 13a, realizing precise alignment and firm connection between modules, facilitating quick disassembly, installation and replacement of modules, and reducing the difficulty of system maintenance and upgrade.

[0035] Reference Figure 9 As shown, the second connecting member 26 includes at least one through hole 26a opened on each module of the pneumatic valve island 2. The through holes 26a are arranged correspondingly, and a connecting rod 26b passes through the inside of each through hole 26a. The connecting rod 26b is connected between the transition module 3 and the electrical valve island. Through the provided through holes 26a and the connecting rod 26b passing through the through holes 26a, the transition module 3 is firmly connected to the electrical valve island. Through the through structure, a high-strength fixing method between modules is provided. When used together with the sealing ring described above, it can effectively prevent the modules from loosening or shifting under the influence of high vibration or external force in the industrial environment, and improve the overall stability and reliability of the system.

[0036] Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical terminal and valve island integrated control system, characterized in that Comprising: An electrical terminal (1), including a bus module (11) and a module combination (12), the module combination (12) including at least one and at most nine modules, the modules including digital input modules, digital output modules, analog input modules, analog output modules, and io-link master modules; A pneumatic valve island (2), including a centralized air supply and exhaust module (21) and a plurality of valve plate modules (2a), each of the valve plate modules (2a) including an electromagnetic valve (22), a gas circuit board (23) connected to the electromagnetic valve (22), a connection circuit board (24), and an indicator light circuit board (25), and an air inlet (23a) and an air outlet (23b) opened on the gas circuit board (23) and communicating with the electromagnetic valve (22), the centralized air supply and exhaust module (21) being disposed on a side close to the electrical terminal (1) for communicating with the electrical terminal (1); A transition module (3) connected between the module combination (12) and the centralized air supply and exhaust module (21) for converting the digital signals in the electrical terminal (1) and the electrical signals in the pneumatic valve island (2) mutually; Wherein, the bus module (11) and each of the module combinations (12) are connected by a first connecting member (13), the centralized air supply and exhaust module (21) and the plurality of valve plate modules (2a) are connected by a second connecting member (26), and a first end plate (4) and a second end plate (5) are respectively fixed at both ends of the bus module (11) and the valve plate module (2a).

2. The electrical terminal and valve island integrated control system according to claim 1, characterized in that, The width of the valve plate module (2a) is 10 mm.

3. The electrical terminal and valve island integrated control system according to claim 1, characterized in that The electromagnetic valve (22) includes an internal accommodation space (22a), a valve core (22b) sleeved inside the accommodation space (22a) and axially relatively movable along the accommodation space (22a), and a fluid inlet and outlet (22c) opened on the electromagnetic valve (22), the fluid inlet and outlet (22c) communicating between the accommodation space (22a) and the gas circuit board (23).

4. The electrical terminal and valve island integrated control system according to claim 3, characterized in that The cross-sections at both ends of the accommodation space (22a) are elliptical, and the area of the ellipse is larger than the cross-sectional area of the accommodation space (22a).

5. The electrical terminal and valve island integrated control system according to claim 1, characterized in that Seals are provided at both ends of the valve plate module (2a).

6. The electrical terminal and valve island integrated control system according to claim 1, characterized in that, The interior of the electromagnetic valve (22) is for passing positive pressure medium or negative pressure medium.

7. The electrical terminal and valve island integrated control system according to claim 1, characterized in that, The transition module (3) has a first data interface (31) and a second data interface (32), the first data interface (31) being a pin header, the first data interface (31) being connected to the electrical terminal (1), the second data interface (32) being a flexible cable, and the flexible cable being connected to the centralized air supply and exhaust module (21).

8. The electrical terminal and valve island integrated control system according to claim 1, wherein The connection circuit board (24) between the centralized air supply and exhaust module (21) and each of the valve plate modules (2a) is connected by a pin header, and the connection circuit board (24) and the indicator light circuit board (25) are connected by a pin header.

9. The electrical terminal and valve island integrated control system according to claim 1, characterized in that, The first connecting member (13) includes a connecting groove (13a) provided on the same side of each module, and a connecting block (13b) provided on the other side of each module and opposite to the position of the connecting groove (13a). The connecting block (13b) protrudes from each module and can extend into the connecting groove (13a).

10. The electrical terminal and valve island integrated control system according to claim 1, wherein The second connecting member (26) includes at least one through hole (26a) formed in each module of the pneumatic valve island (2). The through holes (26a) are correspondingly arranged, and a connecting rod (26b) passes through the inside of the through holes (26a). The connecting rod (26b) is connected between the transition module (3) and the pneumatic valve island (2).

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