Power supply system, control method of power supply system and readable storage medium

Abstract

The present invention proposes a power supply system, a control method for the power supply system and a readable storage medium. The power supply system includes: a first power supply; a first switch element, the first end of the first switch element is connected to the first power supply, and the second end of the first switch element is configured to supply power to the load; a second switch element, the first end of the second switch element is connected to the first power supply; a controller, connected to the second end of the second switch element, the second end of the second switch element is configured to supply power to the controller, the controller is connected to the first switch element, and the controller is used to send a first trigger signal to the first switch and the second switch element according to the controller being in a startup state, so that the first switch element and the second switch element are in a connection state. It is achieved that there is no need to set up an additional control device in the power supply system, and compared with the system with an additional controller, it has the effects of simpler circuits, more efficient control, and saving space and reducing costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic industrial control, and in particular, relates to a power supply system, a control method for the power supply system and a readable storage medium. Background Art

[0002] Most of the existing industrial computers are used in conjunction with controllers such as PLCs, which control the system circuits of the industrial computers. However, hardware devices such as PLCs increase costs, waste valuable space, and increase the complexity of the system. Summary of the invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, a first aspect of the present invention provides a power supply system.

[0005] A second aspect of the present invention provides a control method for a power supply system.

[0006] A third aspect of the present invention provides a readable storage medium.

[0007] In view of this, according to a first aspect of the present invention, a power supply system is proposed, comprising: a first power supply; a first switch element, a first end of the first switch element is connected to the first power supply, and a second end of the first switch element is configured to supply power to a load; a second switch element, a first end of the second switch element is connected to the first power supply; a controller, connected to the second end of the second switch element, the second end of the second switch element is configured to supply power to the controller, the controller is connected to the first switch element, and the controller is used to send a first trigger signal to the first switch and the second switch element according to the controller being in a startup state, so that the first switch element and the second switch element are in a connection state.

[0008] The power supply system provided by the present invention includes a first power supply, a first switch, a second switch and a controller. The first power supply is used to supply power to the controller and the load, and the first switch is arranged between the first power supply and the load. When the first switch is in a conductive state, the current of the first power supply can flow to the load, thereby supplying power to the load. The second switch is arranged between the first power supply and the controller. When the second switch is in a conductive state, the current of the first power supply can flow to the controller. By arranging the first switch and the second switch between the first power supply and the load and the controller, the on-off state between the first power supply and the load and the controller is controlled by the first switch and the second switch, so that it is possible to control whether the load and the controller are powered on separately.

[0009] The controller can generate a first trigger signal according to its own startup state, and send the first trigger signal to the first switch element and the second switch element, thereby controlling the on and off states of the first switch element and the second switch element, thereby achieving the effect of not needing to set up an additional control device in the power supply system. Compared with the system with an additional controller, it has the effects of simpler circuits, more efficient control, space saving and cost reduction.

[0010] Specifically, the controller is an industrial computer. When the industrial computer is powered on and the industrial computer detects that the power-on is completed, a first trigger signal for controlling the first switch and the second switch is generated. The first switch and the second switch receive the first trigger signal and can maintain a connection state. At this time, the first power supply can supply power to the industrial computer and the load. It can be understood that the industrial computer is connected to the load, and the industrial computer can control the operation of the load. The second switch is in a normally open state, and the user can directly operate the second switch to make the second switch in a closed state to complete the initial power-on of the industrial computer.

[0011] In addition, the control method of the power supply system in the above technical solution provided by the present invention may also have the following additional technical features:

[0012] In a possible design, the second switch element is a delayed disconnection relay, wherein the delay duration of the second switch element is greater than a set duration.

[0013] In this design, the second switch is designed as a delayed disconnection relay, that is, when the second switch is triggered, the countdown begins, and when the countdown ends, the second switch is in the disconnected state, thereby achieving the delayed disconnection effect. The delay time of the delayed disconnection of the second switch is designed to be greater than the set time, where the set time is the time required for the controller to start, that is, the time it takes for the controller to reach the startup state and generate the first trigger signal after power is turned on. By setting the second switch as a delayed disconnection relay and further designing the delay time of disconnection, the safety of the power supply of the power supply system is ensured, and the power supply system can operate safely and stably regardless of the normal start and stop of the controller or a sudden power failure.

[0014] In some embodiments, the controller is an industrial computer. The second switch is manually triggered by the user, and the second switch switches from an open state to a closed state. At this time, the industrial computer is powered on and started, and the second switch starts to count down. When the industrial computer is successfully started, the first trigger signal is continuously sent to the second switch, and the second switch continues to receive the first trigger signal to maintain a closed state, thereby realizing the self-locking of the second switch. At the same time, the first switch also receives the first trigger signal and remains in a closed state, and the first power supply is transmitted to the load through the first switch, thereby supplying power to the load. When the industrial computer is shut down normally, the industrial computer no longer continues to send the first trigger signal to the first switch and the second switch, the second switch loses self-locking, starts to count down, and the first switch is disconnected to cut off the power to the load. The delay time of the second switch is greater than the time required for the controller to shut down, which ensures that the industrial computer can be shut down in the powered-on state, so that the industrial computer has enough time to shut down the process in the running state, avoids the loss of running data, and improves the stability of the operation of the system industrial computer.

[0015] In a possible design, the power supply system further includes: a power supply circuit, a first end of the power supply circuit is connected to the second end of the second switch element, and a second end of the power supply circuit is connected to the controller.

[0016] In this design, the power supply system also includes a power supply circuit, and the first end and the second end of the power supply circuit are respectively connected to the second switch and the controller. When the second switch is in a closed state, the first power supply supplies power to the controller through the power supply circuit. By arranging the power supply circuit between the first power supply and the controller, it is possible to avoid the impact of the voltage or current fluctuation of the first power supply on the control, thereby improving the stability of the controller operation.

[0017] It is understandable that the first power source may be AC ​​power. The power supply circuit can convert the AC power so that the controller can operate under appropriate conditions.

[0018] Specifically, the power supply circuit has a voltage regulation function, which enables the controller to operate at a suitable voltage. The power supply circuit also has a separate power supply function, which enables the controller to be powered when the first power supply does not supply power to the controller.

[0019] In one possible design, the power supply circuit also includes: a second power supply, a first end of the second power supply is connected to the second end of the second switch element, and the second end of the second power supply is connected to the controller; an energy storage element is connected to the second power supply, the energy storage element is configured to store electrical energy output by the second power supply, and the energy storage element is connected to the controller, wherein based on the second power supply having no current signal, the energy storage element supplies power to the controller.

[0020] In this design, the power supply circuit includes a second power supply and an energy storage element. The second power supply is arranged between the second switch and the controller. The second power supply can regulate the voltage of the electric energy of the first power supply and make the voltage delivered to the controller more stable, thereby improving the stability of the operation of the controller and avoiding the impact of voltage fluctuations on the operation of the controller. The energy storage element is also connected to the second power supply. When the second power supply supplies power to the controller, the second power supply charges the energy storage element. When the first power supply no longer supplies power to the second power supply, the energy storage element can continue to supply power to the controller, so that the controller continues to operate, avoiding data loss caused by direct power failure of the controller, or even component damage.

[0021] In some embodiments, the controller is an industrial computer. After the industrial computer is started, the current signal at the second power supply is continuously detected. If the current signal at the second power supply is continuously detected, it is considered that the second power supply to the industrial computer is stable. When no current signal is detected at the second power supply, the shutdown step is started, and power is taken from the energy storage element. The energy storage element supplies power to the industrial computer to ensure that the industrial computer enters the shutdown procedure and ensures the stability of operation.

[0022] In some other embodiments, when the startup of the industrial computer is not completed, the first power supply no longer supplies power to the second power supply. At this time, since the startup of the industrial computer is not completed, the current signal at the second power supply cannot be detected, and the industrial computer is powered off along with the second power supply. It is understandable that since the startup of the industrial computer is not completed at this time, there is no program that needs to be closed, so the industrial computer can be directly powered off and shut down.

[0023] In a possible design, the power supply system also includes: a third switch element, a first end of the third switch element is connected to the controller, a second end of the third switch element is connected to the first switch element and the second switch element, and the second end of the third switch element is configured as a signal output end for sending a first trigger signal to the first switch element and the second switch element.

[0024] In this design, the power supply system further includes a third switch component, which is arranged between the controller and the second switch component, and the third switch component can send the first trigger signal generated by the controller to the second switch component, so that the second switch component is in a closed path state. Specifically, the first end and the second end of the third switch component are respectively connected to the controller and the second switch component, and the first end of the third switch component is a signal input end, and the second end of the third switch component is a signal output end. The first trigger signal generated by the controller is input to the second switch component through the third switch component, thereby realizing the driving effect on the second switch component.

[0025] In some embodiments, the second switch element is a contactor, and the third switch element is a relay. When the relay is closed in response to the first trigger signal, current flows to the contactor. After the contactor is powered on, the armatures inside the contactor attract each other to form a path, so that the current between the first power supply and the load forms a path, and the first power supply can supply power to the load.

[0026] In a possible design, the power supply system further includes: a protection circuit, wherein a first end of the protection circuit is connected to the first power source, and a second end of the protection circuit is connected to the second switch element.

[0027] In this design, the power supply system also includes a protection circuit, which is arranged between the first power supply and the second switch. When the current output by the first power supply is too large, the protection circuit can disconnect the circuit between the first power supply and the second switch, so that the current cannot continue to flow to the controller. It plays a role in protecting the controller and preventing the controller from being impacted by a large current, which may cause damage to the controller.

[0028] In some embodiments, the first end of the first switch element is connected to the second end of the protection circuit. When the output current of the first power supply is unstable, the protection circuit is in an open circuit state. At this time, the current will not flow to the load, avoiding the current from impacting the load, thereby improving the stability of the load operation.

[0029] In one possible design, the protection circuit includes: a fourth switch element, a first end of the fourth switch element is connected to the first power supply; a fuse, a first end of the fuse is connected to the second end of the fourth switch element, and the second end of the fuse is connected to the second switch element.

[0030] In this design, the protection circuit includes a fourth switch and a fuse. The fourth switch is disconnected when the current is too large, and the fuse is blown when the current is too large. Both the fourth switch and the fuse can play a role in overcurrent protection of the power supply system. By setting two safety devices that can be disconnected when there is an overcurrent in the power supply system, the impact on the controller and the load caused by the excessive current output by the first power supply can be avoided, thereby improving the stability of the power supply system operation.

[0031] In some embodiments, the fourth switch is an air switch. When the current flowing to the fourth switch is greater than the first set current value, the fourth switch is in an off state, and the current does not continue to flow. When the current flowing to the fuse is greater than the second set current value, the fuse blows to disconnect the circuit, and the current does not continue to flow. The first set current value is less than the second set current value.

[0032] In this embodiment, during the maintenance of the power supply system, the user can manually open or close the air switch, and the current in the circuit after the air switch disappears.

[0033] In a possible design, the power supply system further includes: a fifth switch element, connected to the control end of the second switch element, and configured to send a second trigger signal to the second switch element.

[0034] In this design, the power supply system also includes a fifth switch component, which is connected to the control end of the second switch component. The on and off state of the fifth switch component can directly control the on and off state of the second switch component. The user can control the on and off state of the second switch component through the fifth switch component. When the user needs to start the controller, the fifth switch component can be directly operated to put the second switch component in a closed state, so that the current can flow to the controller through the second switch component, thereby realizing the power supply effect for the controller.

[0035] In some embodiments, the fifth switch is a self-resetting switch, and the second switch is a delayed disconnection relay. The self-resetting switch is directly connected to the control end of the delayed disconnection relay. The user can send a second trigger signal to the delayed disconnection relay by triggering the self-resetting switch, so that it is in a closed state. After the delayed disconnection relay is closed, the countdown begins. During the countdown, the delayed disconnection relay receives the first trigger signal, and the delayed disconnection relay is in a self-locking state, that is, the delayed disconnection relay continues to maintain a conductive state. During the countdown, if the delayed disconnection relay does not receive the first trigger signal, the delayed disconnection relay returns to the disconnected state.

[0036] According to a second aspect of the present invention, a control method for a power supply system is proposed, which is used in a power supply system in any possible design as described above, comprising: determining an operating state of a controller, and controlling the on / off state of a first switch element and a second switch element according to the operating state.

[0037] The control method provided by the present invention is used for the power supply system in any possible design mentioned above. The power supply system includes a first power supply, a first switch element, a second switch element and a controller. Among them, the first power supply is used to supply power to the controller and the load, and the first switch element is arranged between the first power supply and the load. When the first switch element is in the on state, the current of the first power supply can flow to the load, thereby supplying power to the load. The second switch element is arranged between the first power supply and the controller. When the second switch element is in the on state, the current of the first power supply can flow to the controller. By arranging the first switch element and the second switch element between the first power supply and the load and the controller, the on-off state between the first power supply and the load and the controller is controlled by the first switch element and the second switch element, so that it is possible to control whether the load and the controller are powered on separately.

[0038] The controller can generate a first trigger signal according to its own startup state, and send the first trigger signal to the first switch element and the second switch element, thereby controlling the on and off states of the first switch element and the second switch element, thereby achieving the effect of not needing to set up an additional control device in the power supply system. Compared with the system with an additional controller, it has the effects of simpler circuits, more efficient control, space saving and cost reduction.

[0039] Specifically, the controller is an industrial computer. When the industrial computer is powered on and the industrial computer detects that the power-on is completed, a first trigger signal for controlling the first switch and the second switch is generated. The first switch and the second switch receive the first trigger signal and can maintain a connection state. At this time, the first power supply can supply power to the industrial computer and the load. It can be understood that the industrial computer is connected to the load, and the industrial computer can control the operation of the load. The second switch is in a normally open state, and the user can directly operate the second switch to make the second switch in a closed state to complete the initial power-on of the industrial computer.

[0040] The control method of the power supply system includes detecting the operating state of the controller, and controlling the on-off state of the first switch and the second switch according to the detected operating state of the controller. The power supply system is controlled according to the operating state of the controller itself in the power supply system, so that there is no need to set up an additional controller in the power supply system. Compared with the system with an additional controller, the circuit is simpler, the control is more efficient, and space is saved and cost is reduced.

[0041] In addition, the power supply system in the above technical solution provided by the present invention may also have the following additional technical features:

[0042] In a possible design, the step of controlling the on and off states of the first switch element and the second switch element according to the operating state specifically includes: based on the controller being in a startup state, sending a first trigger signal to the first switch element and the second switch element to put the first switch element and the second switch element in a conductive state.

[0043] In this design, when it is detected that the controller is in the startup state, a first trigger signal is generated and sent to the first switch element and the second switch element. The first switch element is in a closed state in response to the first trigger signal, and the circuit from the first power supply to the load is in a conductive state, and the first power supply supplies power to the load. The second switch element is in a closed state in response to the second trigger signal, and the second switch element starts a countdown, and the current of the first power supply is transmitted to the controller to supply power to the controller, and the controller is powered on and started. When the controller is in the startup state, the controller outputs the first trigger signal, and the second switch element is in a self-locking state after receiving the first trigger signal, so that the current of the first power supply can continue to supply power to the controller.

[0044] It is understandable that the second switch is designed as a delayed disconnect relay, that is, when the second switch is triggered, the countdown begins, and when the countdown ends, the second switch is in the disconnected state, thereby achieving the effect of delayed disconnection. The delay duration of the delayed disconnection of the second switch is designed to be greater than the set duration, where the set duration is the duration required for the controller to start, that is, the duration for the controller to reach the start state and generate the first trigger signal after power is turned on. By setting the second switch as a delayed disconnect relay and further designing the delay duration of disconnection, the safety of power supply of the power supply system is ensured, and the power supply system can operate safely and stably regardless of the normal start and stop of the controller or a sudden power failure.

[0045] According to the third aspect of the present invention, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the control method of the power supply system in any possible design described above are implemented. Therefore, all the beneficial technical effects of the control method of the power supply system in any possible design described above are achieved, and no further elaboration is made here.

[0046] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0048] Figure 1 A schematic diagram showing the structure of a power supply system in an embodiment of the present invention is shown;

[0049] Figure 2 A schematic structural diagram of a power supply system in another embodiment of the present invention is shown;

[0050] Figure 3 A schematic diagram showing the structure of a power supply system in yet another embodiment of the present invention is shown;

[0051] Figure 4 A schematic flow chart showing a control method of a power supply system in an embodiment of the present invention is shown;

[0052] Figure 5 A schematic flow chart of a control method for a power supply system in another embodiment of the present invention is shown.

[0053] in, Figures 1 to 3 The corresponding relationship between the reference numerals and the component names is as follows:

[0054] 100 power supply system, 102 first power supply, 104 first switch element, 106 second switch element, 108 controller, 110 power supply circuit, 1102 second power supply, 1104 energy storage element, 112 third switch element, 114 protection circuit, 1142 fourth switch element, 1144 fuse, 116 fifth switch element, 118 load. DETAILED DESCRIPTION

[0055] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0057] Refer to the following Figures 1 to 5 A power supply system, a control method of a power supply system and a readable storage medium according to some embodiments of the present invention are described.

[0058] Embodiment 1:

[0059] like Figure 1 As shown, a power supply system 100 is provided in the first embodiment of the present invention, including: a first power supply 102, a first switch element 104, a second switch element 106 and a controller 108, wherein a first end of the first switch element 104 is connected to the first power supply 102, and a second end of the first switch element 104 is configured to supply power to a load 118; a first end of the second switch element 106 is connected to the first power supply 102; the controller 108 is connected to a second end of the second switch element 106, and a second end of the second switch element 106 is configured to supply power to the controller 108, the controller 108 is connected to the first switch element 104, and the controller 108 is used to send a first trigger signal to the first switch and the second switch element 106 according to the controller 108 being in a startup state, so that the first switch element 104 and the second switch element 106 are in a connection state.

[0060] The power supply system 100 provided in this embodiment includes a first power supply 102, a first switch 104, a second switch 106 and a controller 108. The first power supply 102 is used to supply power to the controller 108 and the load 118. The first switch 104 is arranged between the first power supply 102 and the load 118. When the first switch 104 is in a conductive state, the current of the first power supply 102 can flow to the load 118, thereby supplying power to the load 118. The second switch 106 is arranged between the first power supply 102 and the controller 108. When the second switch 106 is in a conductive state, the current of the first power supply 102 can flow to the controller 108. By arranging the first switch 104 and the second switch 106 between the first power supply 102 and the load 118 and the controller 108, the on-off state between the first power supply 102 and the load 118 and the controller 108 is controlled by the first switch 104 and the second switch 106, so that it is possible to control whether the load 118 and the controller 108 are powered on separately.

[0061] The controller 108 can generate a first trigger signal according to its own startup state, and send the first trigger signal to the first switch element 104 and the second switch element 106, so as to control the on and off states of the first switch element 104 and the second switch element 106, thereby achieving the effect of not needing to set up an additional control device in the power supply system 100. Compared with the system in which the controller 108 is additionally set up, the system has a simpler circuit, more efficient control, and saves space and reduces costs.

[0062] Specifically, the controller 108 is an industrial computer. When the industrial computer is powered on and the industrial computer detects that the power-on is completed, a first trigger signal for controlling the first switch 104 and the second switch 106 is generated. The first switch 104 and the second switch 106 can maintain a connection state after receiving the first trigger signal, and at this time, the first power supply 102 can supply power to the industrial computer and the load 118. It can be understood that the industrial computer is connected to the load 118, and the industrial computer can control the operation of the load 118. The second switch 106 is in a normally open state, and the user can directly operate the second switch 106 to make the second switch 106 in a closed state to complete the initial power-on of the industrial computer.

[0063] Embodiment 2:

[0064] like Figure 2As shown, a power supply system 100 is provided in the second embodiment of the present invention, including: a first power supply 102, a first switch element 104, a second switch element 106 and a controller 108, wherein a first end of the first switch element 104 is connected to the first power supply 102, and a second end of the first switch element 104 is configured to supply power to a load 118; a first end of the second switch element 106 is connected to the first power supply 102; the controller 108 is connected to a second end of the second switch element 106, and a second end of the second switch element 106 is configured to supply power to the controller 108, the controller 108 is connected to the first switch element 104, and the controller 108 is used to send a first trigger signal to the first switch and the second switch element 106 according to the controller 108 being in a startup state, so that the first switch element 104 and the second switch element 106 are in a connection state.

[0065] The second switch element 106 is a delayed disconnection relay, wherein the delay time of the second switch element 106 is greater than the set time.

[0066] In this embodiment, the power supply system 100 includes a first power supply 102, a first switch 104, a second switch 106 and a controller 108. The first power supply 102 is used to supply power to the controller 108 and the load 118. The first switch 104 is arranged between the first power supply 102 and the load 118. When the first switch 104 is in a conductive state, the current of the first power supply 102 can flow to the load 118, thereby supplying power to the load 118. The second switch 106 is arranged between the first power supply 102 and the controller 108. When the second switch 106 is in a conductive state, the current of the first power supply 102 can flow to the controller 108. By arranging the first switch 104 and the second switch 106 between the first power supply 102 and the load 118 and the controller 108, the on-off state between the first power supply 102 and the load 118 and the controller 108 is controlled by the first switch 104 and the second switch 106, so that it is possible to control whether the load 118 and the controller 108 are powered on separately. The controller 108 can generate a first trigger signal according to its own startup state, and send the first trigger signal to the first switch element 104 and the second switch element 106, so as to control the on and off states of the first switch element 104 and the second switch element 106, thereby achieving the effect of not needing to set up an additional control device in the power supply system 100. Compared with the system in which the controller 108 is additionally set up, the system has a simpler circuit, more efficient control, and saves space and reduces costs.

[0067] The second switch 106 is designed as a delayed disconnection relay, that is, when the second switch 106 is triggered, the countdown begins, and when the countdown ends, the second switch 106 is in the disconnected state, thereby achieving the delayed disconnection effect. The delay time of the delayed disconnection of the second switch 106 is designed to be greater than the set time, where the set time is the time required for the controller 108 to start, that is, the time required for the controller 108 to reach the start state and generate the first trigger signal after power is turned on. By setting the second switch 106 as a delayed disconnection relay and further designing the delay time of disconnection, the safety of power supply of the power supply system 100 is ensured, and the power supply system 100 can operate safely and stably regardless of the normal start and stop of the controller 108 or a sudden power failure.

[0068] In some embodiments, the controller 108 is an industrial computer. The second switch 106 is manually triggered by the user, and the second switch 106 switches from an open state to a closed state. At this time, the industrial computer is powered on and started, and the second switch 106 starts to count down. When the industrial computer is successfully started, the first trigger signal is continuously sent to the second switch 106, and the second switch 106 continues to receive the first trigger signal to maintain a closed state, thereby realizing the self-locking of the second switch 106. At the same time, the first switch 104 also receives the first trigger signal and remains in a closed state. The first power supply 102 is transmitted to the load 118 through the first switch 104, thereby supplying power to the load 118. When the industrial computer is shut down normally, the industrial computer no longer continues to send the first trigger signal to the first switch 104 and the second switch 106, and the second switch 106 loses self-locking and starts to count down. The first switch 104 is disconnected to cut off the power to the load 118. The delay time of the second switch element 106 is longer than the time required for the controller 108 to shut down, which ensures that the industrial computer can be shut down in the powered-on state, so that the industrial computer has enough time to close the running process, avoid the loss of running data, and improve the stability of the system industrial computer operation.

[0069] like Figure 3 As shown, in any of the above embodiments, the power supply system 100 further includes: a power supply circuit 110 , a first end of the power supply circuit 110 is connected to a second end of the second switch element 106 , and a second end of the power supply circuit 110 is connected to the controller 108 .

[0070] In this embodiment, the power supply system 100 further includes a power supply circuit 110, and a first end and a second end of the power supply circuit 110 are respectively connected to the second switch 106 and the controller 108. When the second switch 106 is in a closed state, the first power supply 102 supplies power to the controller 108 through the power supply circuit 110. By providing the power supply circuit 110 between the first power supply 102 and the controller 108, it is possible to avoid the impact of the voltage or current fluctuation of the first power supply 102 on the control, thereby improving the stability of the operation of the controller 108.

[0071] It is understandable that the first power source 102 may be a commercial power source. The power supply circuit 110 can convert the commercial power source so that the controller 108 can operate under appropriate conditions.

[0072] Specifically, the power supply circuit 110 has a voltage regulation function, which enables the controller 108 to operate at a suitable voltage. The power supply circuit 110 also has a separate power supply function, which can supply power to the controller 108 when the first power supply 102 does not supply power to the controller 108 .

[0073] like Figure 3 As shown, in any of the above embodiments, the power supply circuit 110 also includes: a second power supply 1102, a first end of the second power supply 1102 is connected to the second end of the second switch element 106, and the second end of the second power supply 1102 is connected to the controller 108; an energy storage element 1104 is connected to the second power supply 1102, the energy storage element 1104 is configured to store the electric energy output by the second power supply 1102, and the energy storage element 1104 is connected to the controller 108, wherein based on the fact that the second power supply 1102 has no current signal, the energy storage element 1104 supplies power to the controller 108.

[0074] In this embodiment, the power supply circuit 110 includes a second power supply 1102 and an energy storage element 1104. The second power supply 1102 is arranged between the second switch 106 and the controller 108. The second power supply 1102 can regulate the voltage of the electric energy of the first power supply 102, and make the voltage transmitted to the controller 108 more stable, thereby improving the stability of the operation of the controller 108 and avoiding the influence of voltage fluctuation on the operation of the controller 108. The energy storage element 1104 is also connected to the second power supply 1102. When the second power supply 1102 supplies power to the controller 108, the second power supply 1102 charges the energy storage element 1104. When the first power supply 102 no longer supplies power to the second power supply 1102, the energy storage element 1104 can continue to supply power to the controller 108, so that the controller 108 continues to operate, avoiding the data loss caused by the direct power failure of the controller 108, and even the damage of the element.

[0075] In some embodiments, the controller 108 is an industrial computer. After the industrial computer is started, the current signal at the second power supply 1102 is continuously detected. If the current signal at the second power supply 1102 is continuously detected, it is considered that the second power supply 1102 is stable in supplying power to the industrial computer. When no current signal is detected at the second power supply 1102, the shutdown step is started, and power is taken from the energy storage element 1104. The energy storage element 1104 supplies power to the industrial computer to ensure that the industrial computer enters the shutdown procedure and ensures the stability of operation.

[0076] In some other embodiments, when the startup of the industrial computer is not completed, the first power supply 102 no longer supplies power to the second power supply 1102. At this time, since the startup of the industrial computer has not been completed, the current signal at the second power supply 1102 cannot be detected, and the industrial computer is powered off along with the second power supply 1102. It can be understood that since the startup of the industrial computer has not been completed at this time, there is no program that needs to be closed, so the industrial computer can be directly powered off and shut down.

[0077] In any of the above embodiments, the power supply system 100 also includes: a third switch element 112, a first end of the third switch element 112 is connected to the controller 108, a second end of the third switch element 112 is connected to the first switch element 104 and the second switch element 106, and the second end of the third switch element 112 is configured as a signal output end for sending a first trigger signal to the first switch element 104 and the second switch element 106.

[0078] In this embodiment, the power supply system 100 further includes a third switch 112, which is disposed between the controller 108 and the second switch 106. The third switch 112 can send the first trigger signal generated by the controller 108 to the second switch 106, so that the second switch 106 is in a closed path state. Specifically, the first end and the second end of the third switch 112 are connected to the controller 108 and the second switch 106, respectively, and the first end of the third switch 112 is a signal input end, and the second end of the third switch 112 is a signal output end. The first trigger signal generated by the controller 108 is input to the second switch 106 through the third switch 112, thereby realizing the driving effect on the second switch 106.

[0079] In some embodiments, the second switch element 106 is a contactor, and the third switch element 112 is a relay. When the relay is closed in response to the first trigger signal, current flows to the contactor. After the contactor is powered on, the armatures inside the contactor attract each other to form a path, so that the current between the first power source 102 and the load 118 forms a path, and the first power source 102 can supply power to the load 118.

[0080] like Figure 3 As shown, in any of the above embodiments, the power supply system 100 further includes: a protection circuit 114 , a first end of the protection circuit 114 is connected to the first power source 102 , and a second end of the protection circuit 114 is connected to the second switch element 106 .

[0081] In this embodiment, the power supply system 100 further includes a protection circuit 114, which is disposed between the first power supply 102 and the second switch 106. When the current output by the first power supply 102 is too large, the protection circuit 114 can disconnect the circuit between the first power supply 102 and the second switch 106, so that the current cannot continue to flow to the controller 108. This protects the controller 108 and prevents the controller 108 from being impacted by a large current, which may damage the controller 108.

[0082] In some embodiments, the first end of the first switch element 104 is connected to the second end of the protection circuit 114. When the output current of the first power supply 102 is unstable, the protection circuit 114 is in an open circuit state. At this time, the current will not flow to the load 118, thereby avoiding the current from causing impact on the load 118, thereby improving the stability of the operation of the load 118.

[0083] In any of the above embodiments, the protection circuit 114 includes: a fourth switch element 1142, a first end of the fourth switch element 1142 is connected to the first power supply 102; a fuse 1144, a first end of the fuse 1144 is connected to the second end of the fourth switch element 1142, and a second end of the fuse 1144 is connected to the second switch element 106.

[0084] In this embodiment, the protection circuit 114 includes a fourth switch 1142 and a fuse 1144. The fourth switch 1142 is disconnected when the current is too large, and the fuse 1144 is blown when the current is too large. The fourth switch 1142 and the fuse 1144 can both play a role in overcurrent protection for the power supply system 100. By providing two safety devices that can be disconnected when overcurrent occurs in the power supply system 100, the impact on the controller 108 and the load 118 caused by the excessive current output by the first power supply 102 can be avoided, thereby improving the stability of the operation of the power supply system 100.

[0085] In some embodiments, the fourth switch 1142 is an air switch. When the current flowing to the fourth switch 1142 is greater than the first set current value, the fourth switch 1142 is in an off state, and the current will not continue to flow. When the current flowing to the fuse 1144 is greater than the second set current value, the fuse 1144 is blown to disconnect the circuit, and the current will not continue to flow. The first set current value is less than the second set current value.

[0086] In this embodiment, during the maintenance of the power supply system 100 , the user can manually open or close the air switch, and the current in the circuit after the air switch disappears.

[0087] In any of the above embodiments, the power supply system 100 further includes: a fifth switch element 116 connected to the control end of the second switch element 106 and configured to send a second trigger signal to the second switch element 106 .

[0088] In this embodiment, the power supply system 100 further includes a fifth switch 116, which is connected to the control end of the second switch 106. The on and off of the fifth switch 116 can directly control the on and off state of the second switch 106. The user can control the on and off state of the second switch 106 through the fifth switch 116. When the user needs to start the controller 108, the user directly operates the fifth switch 116 to make the second switch 106 in a closed state, so that the current can flow to the controller 108 through the second switch 106, thereby achieving the power supply effect for the controller 108.

[0089] In some embodiments, the fifth switch element 116 is a self-resetting switch, and the second switch element 106 is a delayed disconnection relay. The self-resetting switch is directly connected to the control end of the delayed disconnection relay. The user can send a second trigger signal to the delayed disconnection relay by triggering the self-resetting switch, so that it is in a closed state. After the delayed disconnection relay is closed, the countdown begins. During the countdown, the delayed disconnection relay receives the first trigger signal, and the delayed disconnection relay is in a self-locking state, that is, the delayed disconnection relay continues to maintain a conductive state. During the countdown, if the delayed disconnection relay does not receive the first trigger signal, the delayed disconnection relay returns to the disconnected state.

[0090] Embodiment three:

[0091] like Figure 3 As shown, a power supply system 100 is provided in the third embodiment of the present invention, including: a first power supply 102, a power supply circuit 110, a controller 108, a fuse 1144, a first switch element 104, a second switch element 106, a third switch element 112, a fourth switch element 1142 and a fifth switch element 116.

[0092] The power supply circuit 110 includes a second power source 1102 and an energy storage element 1104 .

[0093] Among them, the second power supply 1102 is selected as a switching power supply, the energy storage element 1104 is selected as a battery, the controller 108 is selected as an industrial computer, the first switch component 104 is selected as a contactor, the second switch component 106 is selected as a delayed disconnection relay, the third switch component 112 is selected as a relay, the fourth switch component 1142 is selected as an air switch, and the fifth switch component 116 is selected as a self-resetting switch.

[0094] In the following, the controller 108 is referred to as an industrial computer, the first switch component 104 is referred to as a contactor, the second switch component 106 is referred to as a delayed disconnect relay, the third switch component 112 is referred to as a relay, the fourth switch component 1142 is referred to as an air switch, and the fifth switch component 116 is referred to as a self-resetting switch.

[0095] The contactor is arranged between the load 118 and the first power supply 102. When the contactor is in the on state, the load 118 draws power from the first power supply 102. The time-delay disconnection relay is arranged between the industrial computer and the first power supply 102. When the time-delay disconnection relay is in the on state, the controller 108 draws power from the first power supply 102. The fuse 1144 and the air switch are arranged between the first end and the time-delay disconnection relay and the contactor, and can perform overcurrent protection between the first power supply 102 and the time-delay disconnection relay and the contactor. The switching power supply is arranged between the time-delay disconnection relay and the industrial computer, so that the voltage at the industrial computer is relatively stable. The energy storage element 1104 is connected to the switching power supply. While the switching power supply supplies power to the industrial computer, the energy storage element 1104 is charged. When the first power supply 102 or the switching power supply cannot supply power, the energy storage element 1104 can supply power to the industrial computer. The self-resetting switch is connected to the control end of the time-delay disconnection relay. The self-reset switch is directly connected to the control end of the delayed disconnection relay. By triggering the self-reset switch, the user can send a second trigger signal to the delayed disconnection relay to put it in a closed state. After the delayed disconnection relay is closed, the countdown begins. During the countdown, the delayed disconnection relay receives the first trigger signal, and the dry contact used by the delayed disconnection relay forms a self-locking, that is, the delayed disconnection relay continues to maintain a conductive state. During the countdown, if the delayed disconnection relay does not receive the first trigger signal, the delayed disconnection relay returns to the disconnected state.

[0096] In a specific embodiment, the user manually triggers the self-resetting switch, thereby sending a second trigger signal to the delayed disconnect relay, and the delayed disconnect relay switches from the open state to the closed state. At this time, the industrial computer is powered on and started, and the delayed disconnect relay starts countdown. When the industrial computer is successfully started, it continues to send the first trigger signal to the delayed disconnect relay. The delayed disconnect relay continues to receive the first trigger signal and maintains a closed state, thereby achieving self-locking of the delayed disconnect relay.

[0097] The relay also receives the first trigger signal, so that the armature in the contactor remains in a closed state, and the electric energy of the first power source 102 is transmitted to the load 118 through the relay and the contactor, thereby powering the load 118.

[0098] When the industrial computer is shut down normally, the industrial computer no longer sends the first trigger signal to the delayed opening relay and the relay, the delayed opening relay loses self-locking, starts counting down, and the contactor is disconnected to cut off power to the load 118.

[0099] Specifically, the delay time of the delayed disconnection relay is greater than the time required to shut down the controller 108, which ensures that the industrial computer can be shut down in the powered-on state, so that the industrial computer has enough time to close the running process, avoid the loss of running data, and improve the stability of the system industrial computer operation.

[0100] After the industrial computer is started, the current signal at the switch power supply is continuously detected. If the current signal is continuously detected at the switch power supply, it is considered that the switch power supply to the industrial computer is stable.

[0101] When no current signal is detected at the switch power supply, the shutdown procedure is started and power is taken from the energy storage element 1104. The energy storage element 1104 supplies power to the industrial computer to ensure that the industrial computer enters the shutdown procedure and ensures the stability of operation.

[0102] When the startup of the industrial computer is not yet completed, the first power supply 102 no longer supplies power to the switching power supply. Since the startup of the industrial computer is not completed, the current signal at the switching power supply cannot be detected, and the industrial computer loses power along with the switching power supply.

[0103] It is understandable that, since the industrial computer has not been completely started at this time, there is no program that needs to be closed, so the industrial computer can be directly powered off and shut down.

[0104] Embodiment 4:

[0105] like Figure 4 As shown, a fourth embodiment of the present invention provides a control method for a power supply system, and the control method is used for the power supply system in any of the above embodiments. The control method specifically includes:

[0106] Step 402, determining the operating state of the controller;

[0107] Step 404, controlling the on / off state of the first switch element and the second switch element according to the operating state.

[0108] The control method provided in this embodiment is used for the power supply system in any of the above possible designs. The power supply system includes a first power supply, a first switch, a second switch and a controller. Among them, the first power supply is used to power the controller and the load, and the first switch is arranged between the first power supply and the load. When the first switch is in the on state, the current of the first power supply can flow to the load, thereby powering the load. The second switch is arranged between the first power supply and the controller. When the second switch is in the on state, the current of the first power supply can flow to the controller. By arranging the first switch and the second switch between the first power supply and the load and the controller, the on-off state between the first power supply and the load and the controller is controlled by the first switch and the second switch, so that it is possible to control whether the load and the controller are powered on separately.

[0109] The controller can generate a first trigger signal according to its own startup state, and send the first trigger signal to the first switch element and the second switch element, thereby controlling the on and off states of the first switch element and the second switch element, thereby achieving the effect of not needing to set up an additional control device in the power supply system. Compared with the system with an additional controller, it has the effects of simpler circuits, more efficient control, space saving and cost reduction.

[0110] Specifically, the controller is an industrial computer. When the industrial computer is powered on and the industrial computer detects that the power-on is completed, a first trigger signal for controlling the first switch and the second switch is generated. The first switch and the second switch receive the first trigger signal and can maintain a connection state. At this time, the first power supply can supply power to the industrial computer and the load. It can be understood that the industrial computer is connected to the load, and the industrial computer can control the operation of the load. The second switch is in a normally open state, and the user can directly operate the second switch to make the second switch in a closed state to complete the initial power-on of the industrial computer.

[0111] The control method of the power supply system includes detecting the operating state of the controller, and controlling the on-off state of the first switch and the second switch according to the detected operating state of the controller. The power supply system is controlled according to the operating state of the controller itself in the power supply system, so that there is no need to set up an additional controller in the power supply system. Compared with the system with an additional controller, the circuit is simpler, the control is more efficient, and space is saved and cost is reduced.

[0112] In the above embodiment, the step of controlling the on and off states of the first switch component and the second switch component according to the operating state specifically includes: based on the controller being in the startup state, sending a first trigger signal to the first switch component and the second switch component to put the first switch component and the second switch component in the on state.

[0113] In this design, when it is detected that the controller is in the startup state, a first trigger signal is generated and sent to the first switch element and the second switch element. The first switch element is in a closed state in response to the first trigger signal, and the circuit from the first power supply to the load is in a conductive state, and the first power supply supplies power to the load. The second switch element is in a closed state in response to the second trigger signal, and the second switch element starts a countdown, and the current of the first power supply is transmitted to the controller to supply power to the controller, and the controller is powered on and started. When the controller is in the startup state, the controller outputs the first trigger signal, and the second switch element is in a self-locking state after receiving the first trigger signal, so that the current of the first power supply can continue to supply power to the controller.

[0114] It is understandable that the second switch is designed as a delayed disconnect relay, that is, when the second switch is triggered, the countdown begins, and when the countdown ends, the second switch is in the disconnected state, thereby achieving the effect of delayed disconnection. The delay duration of the delayed disconnection of the second switch is designed to be greater than the set duration, where the set duration is the duration required for the controller to start, that is, the duration for the controller to reach the start state and generate the first trigger signal after power is turned on. By setting the second switch as a delayed disconnect relay and further designing the delay duration of disconnection, the safety of power supply of the power supply system is ensured, and the power supply system can operate safely and stably regardless of the normal start and stop of the controller or a sudden power failure.

[0115] Embodiment five:

[0116] like Figure 5 As shown, a fifth embodiment of the present invention provides a control method for a power supply system, and the control method is used for the power supply system in any of the above embodiments. The control method specifically includes:

[0117] Step 502, detecting the operating status of the controller;

[0118] Step 504, determine whether the controller is in the startup state, if the determination result is yes, execute step 506, if the determination result is no, return to execute step 502;

[0119] Step 506: Send a first trigger instruction to the first switch component and the second switch component.

[0120] In this embodiment, the controller can generate a first trigger signal according to its own startup state, and send the first trigger signal to the first switch element and the second switch element, thereby controlling the on and off states of the first switch element and the second switch element, thereby achieving the effect of not needing to set up an additional control device in the power supply system. Compared with the system with an additional controller, the circuit is simpler, the control is more efficient, and it saves space and reduces costs.

[0121] The first switch is arranged between the load and the first power supply. When the first switch is in the on state, the load draws power from the first power supply. The second switch is arranged between the industrial computer and the first power supply. When the second switch is in the on state, the controller draws power from the first power supply. The fuse and the fourth switch are arranged between the first end and the second switch and the first switch, and can provide overcurrent protection from the first power supply to the second switch and the first switch. The switching power supply is arranged between the second switch and the industrial computer, so that the voltage at the industrial computer is relatively stable. The energy storage element is connected to the switching power supply. The switching power supply charges the energy storage element while supplying power to the industrial computer. When the first power supply or the switching power supply cannot supply power, the energy storage element can supply power to the industrial computer. The fifth switch is connected to the control end of the second switch. The fifth switch is directly connected to the control end of the second switch. By triggering the fifth switch, the user can send a second trigger signal to the second switch, making it in a closed state. After the second switch is closed, the countdown begins. During the countdown, if the second switch receives the first trigger signal, the dry contact used by the second switch forms a self-locking state, that is, the second switch continues to maintain a connection state. During the countdown, if the second switch does not receive the first trigger signal, the second switch returns to a disconnected state.

[0122] In a specific embodiment, the user manually triggers the fifth switch element, thereby sending a second trigger signal to the second switch element, and the second switch element switches from an open state to a closed state. At this time, the industrial computer is powered on and started, and the second switch element starts countdown. When the industrial computer is successfully started, it continues to send the first trigger signal to the second switch element, and the second switch element continues to receive the first trigger signal to maintain a closed state, thereby achieving self-locking of the second switch element.

[0123] The third switch element also receives the first trigger signal, so that the armature in the first switch element remains in a closed state, and the electric energy of the first power supply is transmitted to the load through the third switch element and the first switch element, thereby supplying power to the load.

[0124] When the industrial computer is shut down normally, the industrial computer no longer sends the first trigger signal to the delayed third switch and the third switch, the second switch loses self-locking and starts countdown, and the first switch is disconnected to cut off power to the load.

[0125] Specifically, the delay time of the second switch is longer than the time required to shut down the controller, which ensures that the industrial computer can be shut down in the powered-on state, so that the industrial computer has enough time to close the running process, avoid the loss of running data, and improve the stability of the system industrial computer operation.

[0126] After the industrial computer is started, the current signal at the switch power supply is continuously detected. If the current signal is continuously detected at the switch power supply, it is considered that the switch power supply to the industrial computer is stable.

[0127] When no current signal is detected at the switch power supply, the shutdown procedure is started and power is taken from the energy storage element. The energy storage element supplies power to the industrial computer to ensure that the industrial computer enters the shutdown procedure and ensures the stability of operation.

[0128] When the startup of the industrial computer is not yet completed, the first power supply no longer supplies power to the switching power supply. At this time, since the startup of the industrial computer has not yet been completed, the current signal at the switching power supply cannot be detected, and the industrial computer loses power along with the switching power supply.

[0129] It is understandable that, since the industrial computer has not been completely started at this time, there is no program that needs to be closed, so the industrial computer can be directly powered off and shut down.

[0130] Embodiment six:

[0131] In another embodiment of the present invention, a readable storage medium is provided, on which a program is stored. When the program is executed by a processor, the control method of the power supply system in any of the above embodiments is implemented, thereby having all the beneficial technical effects of the control method of the power supply system in any of the above embodiments.

[0132] The readable storage medium includes a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0133] It should be clear that in the claims, specifications and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process simpler, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or it can be an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0134] In the claims, specification and accompanying drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and accompanying drawings of the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0135] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power supply system, characterized in that: include: First power source; a first switch element, wherein a first end of the first switch element is connected to the first power source, and a second end of the first switch element is configured to supply power to a load; a second switch element, wherein a first end of the second switch element is connected to the first power source; a controller connected to the second end of the second switch element, the second end of the second switch element being configured to supply power to the controller, the controller being connected to the first switch element, the controller being configured to send a first trigger signal to the first switch and the second switch element according to the controller being in a startup state, so that the first switch element and the second switch element are in a connection state; The second switch element is a time-delay disconnect relay, Wherein, the delay time of the second switch element is greater than the set time, and the set time is the time it takes for the controller to reach the startup state and generate the first trigger signal after being powered on; A power supply circuit, wherein a first end of the power supply circuit is connected to a second end of the second switch element, and a second end of the power supply circuit is connected to the controller; the power supply circuit further comprises: a second power supply, wherein a first end of the second power supply is connected to a second end of the second switch element, and a second end of the second power supply is connected to the controller; an energy storage element connected to the second power supply, the energy storage element being configured to store the electric energy output by the second power supply, the energy storage element being connected to the controller, wherein based on the second power supply having no current signal, the energy storage element supplies power to the controller; Wherein, when the second power supply supplies power to the controller, the second power supply charges the energy storage element.

2. The power supply system according to claim 1, characterized in that: Also includes: A third switch component, wherein a first end of the third switch component is connected to the controller, a second end of the third switch component is connected to the first switch component and the second switch component, and the second end of the third switch component is configured as a signal output end for sending the first trigger signal to the first switch component and the second switch component.

3. The power supply system according to claim 1, characterized in that: Also includes: A protection circuit, wherein a first end of the protection circuit is connected to the first power source, and a second end of the protection circuit is connected to the second switch element.

4. The power supply system according to claim 3, characterized in that: The protection circuit comprises: a fourth switch element, a first end of which is connected to the first power source; A fuse, wherein a first end of the fuse is connected to a second end of the fourth switch component, and a second end of the fuse is connected to the second switch component.

5. The power supply system according to claim 1, characterized in that: Also includes: A fifth switch element is connected to the control end of the second switch element and is used to send a second trigger signal to the second switch element.

6. A control method for a power supply system, used in the power supply system as claimed in any one of claims 1 to 5, characterized in that: include: An operating state of the controller is determined, and the on-off states of the first switch element and the second switch element are controlled according to the operating state.

7. The control method of the power supply system according to claim 6, characterized in that: The step of controlling the on / off state of the first switch element and the second switch element according to the operating state specifically includes: Based on the controller being in the startup state, a first trigger signal is sent to the first switch component and the second switch component, so that the first switch component and the second switch component are in the on state.

8. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the power supply system control method according to claim 6 or 7 are implemented.

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