Electric control device

Abstract

The utility model provides an electric control device which comprises a host, a power adapter and an executive device, the executive device is electrically connected with the power adapter in a pluggable mode through a first connector, and the power adapter is electrically connected with the host in a pluggable mode through a second connector. A power module and a driving circuit are arranged in the power adapter, the input end of the driving circuit is electrically connected with the host, the output end of the driving circuit is electrically connected between the power module and the execution device, and the driving circuit can be in a first state and a second state based on signals sent by the host; in the first state, the power supply access between the power supply module and the execution device is connected; and in the second state, the power supply path between the power supply module and the execution device is disconnected. According to the electric control device, the flexibility and the expansibility of the electric control device are enhanced, so that each execution device can more easily cooperate with the host to work, a complicated interface does not need to be customized for each kind of equipment, and the integration and configuration process of the electric control device is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic control, in particular to an electronic control device. Background Art

[0002] In the field of electronics, especially in automated control systems, vision control systems play a vital role. These systems usually consist of a vision terminal and multiple accessories controlled by the vision terminal, such as solenoid valves, sensors, etc. The vision terminal uses high-precision image processing technology to identify, locate and analyze the target scene, and then controls the connected actuators to complete various fine operations. This technology is widely used in industrial automation, robotics, quality inspection and other fields, and is one of the key technologies to achieve efficient and automated production.

[0003] However, with the development of technology and the diversification of application scenarios, traditional visual control systems are facing more and more challenges. A significant problem is the complexity of system connections. In traditional systems, each actuator needs to be connected to the visual terminal through a specific interface. These visual terminals are often equipped with interfaces containing multiple pins. Users need to select and make corresponding connecting devices according to the actual type of accessories used, which is inconvenient for users. What's more serious is that incorrect connections or interface mismatches may cause unstable system operation or even damage expensive equipment.

[0004] In addition, with the increase in the types of actuators and the complexity of their functions, the requirements for power supplies and drive circuits have also increased. In the prior art, the drive circuit is generally integrated inside the visual terminal. This design method requires that all actuators must be directly connected to the visual terminal through a physical interface. Due to the limited number of interfaces on the visual terminal, when connecting multiple actuators, users often need to select or customize corresponding connection devices according to specific application requirements, which not only increases the configuration complexity of the system, but also limits its flexibility and scalability. Utility Model Content

[0005] The utility model aims to provide an electric control device which can solve the complexity and adaptability of the electric connection between an accessory and a host computer.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an electronic control device, which includes a host, a power adapter and a plurality of actuators, wherein the actuator is electrically connected to the power adapter in a pluggable manner through a first connector, and the power adapter is electrically connected to the host in a pluggable manner through a second connector; a power module and a drive circuit are arranged in the power adapter, and when the actuator establishes an electrical connection with the power adapter, the input end of the drive circuit is electrically connected to the host, and the output end of the drive circuit is electrically connected between the power module and the actuator, and the drive circuit can be in a first state and a second state based on a signal sent by the host; in the first state, the power path between the power module and the actuator is connected; in the second state, the power path between the power module and the actuator is disconnected.

[0007] Preferably, the driving circuit includes a switching tube, a control end of the switching tube is provided with a switching circuit, the switching circuit is used to receive a control signal sent by the host, and open or close the switching tube based on the control signal, and the two controlled ends of the switching tube are electrically connected to the power path between the actuator and the power module.

[0008] Preferably, the switching circuit includes an optocoupler, which includes a photocoupler and a switch end, wherein the switch end is electrically connected between the control end of the switch tube and the power end provided by the power module, and the photocoupler is electrically connected between the power end provided by the power module and a signal receiving end, and the signal receiving end is used to receive the control signal of the host.

[0009] Preferably, the light control end is further provided with a filter capacitor.

[0010] Preferably, the light-controlled end is further provided with a first current-limiting resistor.

[0011] Preferably, the switch end is electrically connected to the control end of the switch tube through a second current limiting resistor.

[0012] Preferably, a pull-down resistor is further provided between the control terminal and the ground terminal of the switch tube.

[0013] Preferably, a light emitting diode is further arranged between the switch tube and the power module.

[0014] Preferably, a unidirectional diode connected in parallel with the actuator is further provided between the switch tube and the power module, and the cathode end of the unidirectional diode faces the anode of the power module.

[0015] Preferably, a fuse is connected in series between the switch tube and the actuator.

[0016] Compared with the prior art, the electronic control device provided by the above technical solution of the utility model separates the driving circuit and driving power supply for driving the actuator from the host through a power adapter separated from the host, and adopts a pluggable electrical connection method, which significantly enhances the flexibility and expansibility of the electronic control device. This design enables each actuator to work more easily with the host, without the need to customize complex interfaces for each device, thereby simplifying the integration and configuration process of the electronic control device. In addition, the driving circuit built into the power adapter can dynamically adjust the power state according to the signal of the host, making power management more efficient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the electrical connection of the electric control device in the embodiment of the utility model.

[0018] Figure 2 This is the working principle diagram of the internal circuit of the power adapter.

[0019] Figure 3 1 is a circuit schematic diagram of a driving circuit in an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.

[0021] This embodiment discloses an electric control device that can be used in automated industrial control systems such as the field of visual control. Figure 1 and Figure 2 The electronic control device includes a host 1, a power adapter 2 and a plurality of actuators M. The actuators M may be electromagnetic valves, sensors and other devices.

[0022] The actuator M is electrically connected to the power adapter 2 in a pluggable manner through the first connector L1, and the power adapter 2 is electrically connected to the host 1 in a pluggable manner through the second connector L2. It should be noted that the connection port on the first connector L1 matches the connection port on the power adapter 2, and the connection port on the second connector L2 matches the connection ports on the host 1 and the power adapter 2, and the user can directly plug and unplug for use.

[0023] The power adapter 2 is provided with a power module DC and a driving circuit DR. When the actuator M establishes an electrical connection with the power adapter 2, the input end of the driving circuit DR is electrically connected to the host 1, and the output end of the driving circuit DR is electrically connected between the power module DC and the actuator M. The driving circuit DR can be in a first state and a second state based on the signal sent by the host 1.

[0024] In the first state, the power path between the power module DC and the actuator M is connected.

[0025] In the second state, the power path between the power module DC and the actuator M is disconnected.

[0026] When the electric control device disclosed in this embodiment is used, first, the corresponding actuator M is connected to the power adapter 2 through the first connector L1, and the power adapter 2 is connected to the host 1 through the second connector L2.

[0027] Then, during the operation of the host 1, when it is necessary to start the actuator M, a control signal is sent to the power adapter 2 through the second connector L2. Under the action of the control signal, the drive circuit DR connects the power module DC and the actuator M, so that the actuator M is actuated. When it is not necessary to start the actuator M, the drive circuit DR disconnects the power path between the power module DC and the actuator M, and the actuator M loses power and cannot be actuated.

[0028] like Figure 3 The driving circuit DR includes a switch tube Q. The control end G of the switch tube Q is provided with a switch circuit 3. The switch circuit 3 is used to receive a control signal sent by the host 1 and turn on or off the switch tube Q based on the control signal. The two controlled ends of the switch tube Q are electrically connected to the power path between the actuator M and the power module DC.

[0029] In this embodiment, the connection state between the actuator M and the power module DC is controlled by the switch tube Q, which can realize automatic control and has low power consumption. The switch tube Q in this embodiment is preferably a MOSFET tube.

[0030] Furthermore, the switch circuit 3 includes an optical coupler U, which includes an optical control terminal U1 and a switch terminal U2. The switch terminal U2 is electrically connected between the control terminal G of the switch tube Q and the power terminal provided by the power module DC, and the optical control terminal U1 is electrically connected between the power terminal provided by the power module DC and the signal receiving terminal XR, and the signal receiving terminal XR is used to receive the control signal of the host 1.

[0031] Specifically, when the host 1 sends a low level to the signal receiving end XR, the path between the LED of the light control end U1 and the power module DC is turned on, and the LED lights up, thereby turning on the switch end U2, and then the voltage provided by the power module DC is loaded to the control end G of the switch tube Q, so that the switch tube Q is turned on.

[0032] On the other hand, the optical control terminal U1 is also provided with a filter capacitor C to filter out high-frequency noise and peak voltage from the power supply to prevent these unstable factors from affecting the stability of the control signal through the optical coupler U.

[0033] Furthermore, the light control terminal U1 is also provided with a first current limiting resistor R1 to prevent the LED from being damaged by excessive current.

[0034] On the other hand, the switch terminal U2 is electrically connected to the control terminal G of the switch tube Q through the second current limiting resistor R2. In this embodiment, the second current limiting resistor R2 limits the current flowing to the control terminal G of the switch tube Q, ensuring that the switch tube Q works under a safe driving current. In addition, by appropriately selecting the resistance value of the second current limiting resistor R2, the switching speed of the switch tube Q can be optimized to ensure fast and reliable switching action.

[0035] On the other hand, a pull-down resistor R3 is also provided between the control terminal G and the ground terminal of the switch tube Q. Through the pull-down resistor R3, it can be ensured that when there is no control signal (that is, when the output of the optical coupler U is in a high impedance state), the potential of the control terminal G of the switch tube Q is stabilized at a low level, thereby keeping the switch tube Q in a closed state. This avoids accidental conduction that may be caused by the floating potential of the control terminal G of the switch tube Q, and enhances the reliability and stability of the circuit.

[0036] On the other hand, a light emitting diode D0 is provided between the switch tube Q and the power module DC, and the light emitting diode D0 is also connected in series with a third current limiting resistor R4. When the switch tube Q is turned on, the light emitting diode D0 lights up, so that the user can check the current state of the actuator M.

[0037] On the other hand, a unidirectional diode D1 connected in parallel with the actuator M is also provided between the switch tube Q and the power module DC, and the cathode end of the unidirectional diode D1 faces the anode of the power module DC. In this embodiment, the unidirectional diode D1 can be provided to protect the actuator M from reverse voltage. Specifically, when the power supply is reversed or a short circuit occurs in a part of the circuit, causing the current to reverse, the current flows out through the unidirectional diode D1, thereby short-circuiting the actuator M to protect the actuator M.

[0038] On the other hand, a fuse F is connected in series between the switch tube Q and the actuator M.

[0039] In summary, the utility model discloses an electric control device, which separates the driving circuit DR and driving power supply for driving the actuator M from the host 1 through the power adapter 2 separated from the host 1, and adopts a pluggable electrical connection method, which significantly enhances the flexibility and expansibility of the electric control device. This design enables each actuator M to work more easily with the host 1, without the need to customize complex interfaces for each device, thereby simplifying the system integration and configuration process. In addition, the driving circuit DR built into the power adapter 2 can dynamically adjust the power state according to the signal of the host 1, making power management more efficient and flexible.

[0040] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An electric control device, It is characterized in that The present invention comprises a host, a power adapter and a plurality of actuators, wherein the actuator is electrically connected to the power adapter in a pluggable manner via a first connector, and the power adapter is electrically connected to the host in a pluggable manner via a second connector; a power module and a drive circuit are arranged in the power adapter, and when the actuator is electrically connected to the power adapter, an input end of the drive circuit is electrically connected to the host, and an output end of the drive circuit is electrically connected between the power module and the actuator, and the drive circuit can be in a first state and a second state based on a signal sent by the host; in the first state, the power path between the power module and the actuator is connected; in the second state, the power path between the power module and the actuator is disconnected.

2. The electronic control device according to claim 1, It is characterized in that The driving circuit includes a switch tube, a control end of the switch tube is provided with a switch circuit, the switch circuit is used to receive a control signal sent by the host, and turn on or off the switch tube based on the control signal, and the two controlled ends of the switch tube are electrically connected to the power path between the actuator and the power module.

3. The electric control device according to claim 2, It is characterized in that The switching circuit includes an optocoupler, which includes a light-controlled end and a switch end. The switch end is electrically connected between the control end of the switch tube and the power end provided by the power module. The light-controlled end is electrically connected between the power end provided by the power module and a signal receiving end. The signal receiving end is used to receive the control signal of the host.

4. The electric control device according to claim 3, It is characterized in that The light control end is also provided with a filter capacitor.

5. The electric control device according to claim 3, It is characterized in that The light-controlled end is also provided with a first current-limiting resistor.

6. The electric control device according to claim 3, It is characterized in that The switch end is electrically connected to the control end of the switch tube through a second current limiting resistor.

7. The electric control device according to claim 2, It is characterized in that A pull-down resistor is also arranged between the control end and the ground end of the switch tube.

8. The electric control device according to claim 2, It is characterized in that A light emitting diode is also arranged between the switch tube and the power module.

9. The electric control device according to claim 2, It is characterized in that A unidirectional diode connected in parallel with the actuator is also provided between the switch tube and the power module, and the cathode end of the unidirectional diode faces the anode of the power module.

10. The electric control device according to claim 2, It is characterized in that A fuse is also connected in series between the switch tube and the actuator.

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