Electrical and mechanical equipment power supply system

Abstract

Provides a power supply system for electrical machinery and equipment. [Solution] The power supply system for electromechanical equipment includes a power switch, a first rectifier device, a second rectifier device, a backup power supply device, and a control core device. When the power switch is in an open circuit state, the first rectifier device supplies a first DC current to the electromechanical load and simultaneously charges a first storage module. The second rectifier device supplies a second DC current to the computer load. The control core device charges the first storage module to a first target voltage and monitors a first charging time for full charging. When the first charging time falls below a prescribed condition, the control core device issues a notification to the computer load.

Description

[Technical field]

[0001] The present invention relates to an electric machine equipment, and more particularly to a power supply system for an electric machine equipment. [Background technology]

[0002] In electromechanical equipment widely used in production environments, for example, in electromechanical equipment consisting of electromechanical loads (such as robotic arms) and computer loads (such as industrial computers), the industrial computer's role is to control and monitor the operation of the robotic arm. If the electromechanical equipment in the production environment has a blown fuse, malfunction, power outage or failure, the power supply status of the electromechanical equipment cannot be maintained stably, and the electromechanical load and computer load systems cannot be shut down normally, so that the electromechanical load and computer load will fail when they are restarted or started up again, which may risk affecting the stability of the production environment.

[0003] To avoid the above problems, the input power terminal of the electromechanical equipment can be connected to an uninterruptible power supply to maintain the stability of the power supply system, but the uninterruptible power supply is very large in volume and installation cost, which not only takes up space in the production environment but also increases costs.

[0004] If an uninterruptible power supply is not installed and the power supply situation is unstable and an instantaneous power outage occurs to the electromechanical load, the computer may make an incorrect judgment, which will affect the stability of the restarted or newly started operation.

[0005] The longer the rechargeable battery in an uninterruptible power supply is used, the more its quality and storage capacity will deteriorate. In particular, it is difficult to diagnose the lifespan of a rechargeable battery, so a rechargeable battery with weakened storage capacity cannot be replaced by itself. Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above-mentioned shortcomings, the main object of the present invention is to provide a power supply system for electromechanical equipment that can detect the power storage capacity of a standby power supply device, provide the detection result to a user, and allow the user to replace a degraded and weak power storage unit. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, a power supply system for electromechanical equipment includes a power switch, a first rectifier device, a second rectifier device, a backup power supply device, and a control core device. The power switch is connected to an input power source and switches between an open circuit state and a closed circuit state. The first rectifier device is electrically connected to the power switch and an electromechanical load. The second rectifier device is connected to the power switch and a computer load. The backup power supply device is connected to the first rectifier device and the electromechanical load, and has a first storage module. The control core device is electrically connected to the power switch, the computer load, and the backup power supply device. The power switch closed When in a circuit state, the first rectifier device supplies a first direct current to the electromechanical load while charging the first storage module. The second rectifier device supplies a second direct current to the computer load. The control core device charges the first storage module to a first target voltage and monitors a first charging time to full charge. When the first charging time falls below a prescribed condition, the control core device issues a notification to the computer load.

[0008] To sum up, the power supply system for electromechanical equipment according to the present invention supplies power to electromechanical loads and computer loads through the first rectifier and the second rectifier, and at the same time charges the first storage module of the backup power supply device through the first rectifier to store backup power. The control core device notifies the timing of component replacement by comparing the first charging time of the first storage module with the presented conditions. With the above-mentioned technical features, the power supply system for electromechanical equipment can maintain stable power supply to each load.

[0009] The detailed structure, features, assembly or use of the power supply system for electrical machinery equipment according to the present invention will be made clear through the detailed description of the following embodiments. In addition, those with common sense in the field of the present invention should understand that the following detailed description and the embodiments presented by the present invention are merely examples for explaining the present invention and cannot limit the scope of the claims of the present invention. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a related diagram showing a power supply system for electrical machinery equipment according to an embodiment of the present invention. [Diagram 2] 2 is a circuit diagram showing a first protection module and a first power storage module of the standby power supply device in FIG. 1, a detection circuit and a control core of the control core device, and an electromechanical load. [Diagram 3] 2 is a circuit diagram showing a second protection module and a second storage module of the standby power supply device in FIG. 1 and a computer load. [Figure 4] FIG. 2 is a related diagram showing the process of the electrical machinery equipment power supply system according to an embodiment of the present invention. [Diagram 5] 4 is a graph showing the relative relationship between the time and voltage until the supercapacitor in FIG. 2 or FIG. 3 is fully charged. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The power supply system for electrical machinery and equipment according to the present invention will be described below with reference to the drawings. In the specification and drawings, parts designated by numerals such as first, second, third, etc. are defined based on the order of their positions in the drawings. The same numerals also indicate the structural features of the same or similar parts.

[0012] (One embodiment) As shown in FIG. 1, an electric machine power supply system 100 according to an embodiment of the present invention includes a power switch 10, a first rectifier device 20, a second rectifier device 30, a standby power supply device 40 and a control core device 50.

[0013] The power switch 10 is connected to an input power source 11 and switches between an open circuit state and a closed circuit state. The power switch 10 is a mechanical switch or an electronic switch. The input power source 11 is an alternating current.

[0014] The first rectifier device 20 is electrically connected to the power switch 10 and an electromechanical load 60. The second rectifier device 30 is connected to the power switch 10 and a computer load 70. The first rectifier device 20 and the second rectifier device 30 establish power supply paths 61, 71 to separately supply power to the electromechanical load 60 (e.g., a robot arm controller) and the computer load 70 (e.g., an industrial computer).

[0015] Power switch 10 closed When in a circuit state, the first rectifier device 20 supplies a first DC current to the electromechanical load 60. The second rectifier device 30 supplies a second DC current to the computer load 70. In this embodiment, the voltage of the first DC current is 24V. The voltage of the second DC current is 12V. That is, the first rectifier device 20 and the second rectifier device 30 can supply DC currents of different voltages to different loads. In other embodiments, the voltage value of the DC current can be another parameter.

[0016] The standby power supply 40 is connected to the first rectifier 20, the electromechanical load 60 and the computer load 70, and has a first protection module 41, a first storage module 42, a second protection module 43 and a second storage module 44. The first protection module 41 is connected to the first rectifier 20 and the electromechanical load 60. The first storage module 42 is connected to the first protection module 41. The second protection module 43 is connected to the first rectifier 20 and the computer load 70. The second storage module 44 is connected to the second protection module 43. The first protection module 41 and the second protection module 43 maintain the power of the first storage module 42 and the second storage module 44 normally, and at the same time prevent power leakage after shutdown.

[0017] The first protection module 41 has a first input diode 411, a first switch circuit 412, a first low-voltage protection circuit 413, and a first output diode 414. The first input diode 411 has a positive electrode connected to the first rectifier device 20, and a negative electrode connected to the first switch circuit 412 and the first storage module 42. The first low-voltage protection circuit 413 is connected to the first switch circuit 412 and the positive electrode of the first output diode 414. The first output diode 414 has a negative electrode connected to the electromechanical load 60. Power is supplied between the electromechanical load 60 and the first rectifier device 20 through a power supply path 61.

[0018] The second protection module 43 includes a second input diode 431, a second switch circuit 432, a second low-voltage protection circuit 433, a second output diode 434, an input voltage stabilizer 435, and an output voltage stabilizer 436. The input voltage stabilizer 435 is connected to the first rectifier 20 and the positive terminal of the second input diode 431. The second input diode 431 has a negative terminal connected to the second switch circuit 432 and the second storage module 44. The second low-voltage protection circuit 433 is connected to the second switch circuit 432 and the output voltage stabilizer 436. The second output diode 434 has a positive terminal connected to the output voltage stabilizer 436 and a negative terminal connected to the computer load 70. The power supply between the computer load 70 and the second rectifier 30 is performed through a power supply path 71.

[0019] The control core device 50 is electrically connected to the power switch 10, the backup power supply device 40, and the computer load 70. The control core device 50 monitors the AC current supply state of the power switch 10 to determine whether power is supplied normally, and simultaneously monitors the charging state of the first storage module 42 and the second storage module 44 to check the charging capacity and lifespan of each storage module. The control core device 50 operates the first protection module 41 and the second protection module 43.

[0020] In this embodiment, the control core device 50 has a detection circuit 51 and a control core 52. The detection circuit 51 is connected to the power switch 10 and the control core 52 to detect the supply state of AC current. When the supply of AC current stops and a power outage occurs in the control core 52, the control core 52 instructs the computer load 70 to shut down. In this embodiment, the power outage time is in units of seconds, such as 2 seconds, 3 seconds, or 4 seconds, and may be adjusted according to circumstances. Unless a power outage occurs, the control core 52 does not instruct the computer load 70 to shut down or change its operation.

[0021] The control core 52 is connected to the first storage module 42, the second storage module 44, and the computer load 70, and detects the voltage V of the first storage module 42 and the second storage module 44. 42 , V 44 and life span, and notifies the computer load 70 of corresponding presentation conditions.

[0022] As shown in FIG. 1 to FIG. 3, the first storage module 42 and the second storage module 44 have similar configurations, but the storage capacities of the storage module 42 and the second storage module 44 are different. The first storage module 42 and the second storage module 44 each have a plurality of storage units 45 connected in series. In this embodiment, the first storage module 42 has seven storage units 45. The second storage module 44 has five storage units 45. The storage units 45 each have a supercapacitor 451, a resistor 452, and a storage switch 453. The supercapacitor 451 is a lithium-ion supercapacitor, etc. The storage switch 453 is connected to the supercapacitor 451, the resistor 452, and the control core device 50. The plurality of storage units 45 are connected in series with the supercapacitor 451 and the resistor 452. In another embodiment, the number of storage units in each storage module may be increased or decreased. It is only necessary to satisfy the power supply and demand of each load.

[0023] The first storage module 42 is driven to the first target voltage V 42and a state in which the second storage module 44 is fully charged and the second storage module 44 is charged to a second target voltage V 44 The first DC current corresponds to the situation where the battery is charged to full charge. The first target voltage V 42 corresponds to the voltage required for the normal operation of the electric machine load 60. 44 corresponds to the voltage required for the normal operation of the computer load 70.

[0024] When the electrical equipment is started or used normally, the power switch closed In other words, the control core device 50 turns on the storage switch 453 of each storage unit 45. closed The supercapacitor 451 and the resistor 452 are kept in a circuit state and kept in a connected state. When the electromechanical equipment is shut down or abnormally terminated, the control core device 50 cuts off the supercapacitor 451 and the resistor 452 through the storage switch 453 of each storage unit 45 according to the shutdown signal of the computer load 70, so that the supercapacitor 451 can avoid the damage of the components caused by leakage after shutdown under various circumstances, and can ensure the life and reliability of the components.

[0025] The first switch circuit 412 and the second switch circuit 432 are the same in construction and control, and the first low-voltage protection circuit 413 and the second low-voltage protection circuit 433 are the same in construction and control, so the components related to the circuits are indicated with the same symbols. The first switch circuit 412 and the second switch circuit 432 each have a first transistor Q1, a second transistor Q2, and a photocoupler P. The first transistor Q1 is a P-type transistor. The second transistor Q2 is an N-type transistor. The first low-voltage protection circuit 413 and the second low-voltage protection circuit 433 each have a third transistor Q3 and a voltage monitoring unit 4131, 4331. The third transistor Q3 is a P-type transistor. The voltage monitoring units 4131, 4331 have an integrated circuit (rectangular block in the figure), resistors R1, R2, and a capacitor connected in series. The integrated circuit is an NCV33161 series monitoring circuit, etc.

[0026] The source of the first transistor Q1 is connected to the first storage module 42 or the second storage module 44. The drain of the first transistor Q1 is connected to the source of the third transistor Q3 and to the resistor R1 of the voltage monitoring unit 4131, 4331. The gate of the first transistor Q1 is connected to the drain of the second transistor Q2 and to the photocoupler P. The source of the second transistor Q2 is connected to ground. The gate of the second transistor Q2 is connected to the photocoupler P and to the computer load 70 (i.e., to the terminal N). 70 The integrated circuit of the voltage monitoring unit 4131, 4331 is connected to the resistors R1, R2 and the third transistor Q3, and activates the third transistor Q3 by detecting the node voltage of the resistors R1, R2. The node voltage of the resistors R1, R2 is the storage voltage V of the first storage module 42 or the second storage module 44. 42 , V 44 The drain of the third transistor Q3 of the first low voltage protection circuit 413 is connected to the output diode 414. The drain of the third transistor Q3 of the second low voltage protection circuit 433 is connected to the output voltage stabilizer 436.

[0027] The first switch circuit 412 and the second switch circuit 432 are connected to the computer load 70 (i.e., terminal N 70 ) to generate a hardware shutdown signal according to the shutdown-done signal of the computing load 70. After the software of the computing load 70 is shut down, the hardware shutdown signal is sent to the first switch circuit 412 and the second switch circuit 432 even if the shutdown-done signal indicates that the shutdown operation of the computing load 70 is completed or not yet completed. Open The circuit state is maintained and power to the standby power supply 40 and its respective loads is cut off.

[0028] The first low-voltage protection circuit 413 and the second low-voltage protection circuit 433 separately suppress the over-discharge of the first storage module 42 and the second storage module 44. In particular, if the first storage module 42 and the second storage module 44 are in an over-discharge state, the storage performance of the first storage module 42 and the second storage module 44 will be reduced, so the voltage monitoring units 4131 and 4331 can monitor the voltage of the first storage module 42 and the second storage module 44. If the voltage is determined to be low (3.5 volts or another parameter), the third transistor Q3 cuts off the power supply path to suppress the over-discharge of the first storage module 42 and the second storage module 44. In another embodiment, the voltage monitoring units 4131 and 4331 are not limited to being integrated circuits, and may also adopt detection circuits configured by other circuits.

[0029] In another embodiment, if the power supply device of the computer load 70 is provided with a backup power source, or a backup power source that can support the computer load 70 until the shutdown operation or data backup operation is completed, the second protection module 43 and the second storage module 44 do not need to be arranged.

[0030] 4 is a related diagram showing the process of the power supply system 100 for electrical machinery equipment according to the present invention. In step S80, the timing of switching the power switch 10 is judged. closed In step S81, the first rectifier 20 and the second rectifier 30 are supplied with AC to supply power to the first storage module 42 and the second storage module 44 of the standby power supply 40, the electromechanical load 60, and the computer load 70. At this time, the electromechanical load 60 and the computer load 70 are started and operate normally. The first storage module 42 is supplied with the first target voltage V 42 The second storage module 44 is charged to the second target voltage V44 and reaches full charge. The control core 52 of the control core device 50 charges the first storage module 42 to the first target voltage V 42a first charging time for charging the second storage module 44 to a second target voltage V 44 and monitors a second charge time to reach full charge. When the first charge time and the second charge time fall below the prescribed condition, the control core 52 issues a notification to the computing load 70.

[0031] The presentation condition is related to the storage capacity of the first storage module 42 and the second storage module 44. The storage capacity can be observed by the voltage and time to reach full charge of each storage module. Each storage module has similar voltage and time characteristics to reach full charge. The difference lies in the voltage level to reach full charge. Next, as shown in FIG. 5, the charging characteristics of one of the storage modules will be described. In this embodiment, the presentation condition is the ratio of the initial time to the current elapsed time to charge the storage module to a full charge state and use it. The time to charge the storage module to a full charge state and use it is determined by the first target voltage V under zero or low voltage conditions. 42 or the second target voltage V 44 The first and second charging times are the time required to charge the battery to a full charge and the time required to charge the battery to a full charge. The initial first or second charging time is indicated by t1. The charging characteristics of the initial storage module are indicated by a solid line. The first and second charging times after decay are indicated by t2. The charging characteristics of the decayed storage module are indicated by a dashed line. The suggested condition refers to the ratio of t1 to t2, that is, the percentage of t2 divided by t1. When the ratio falls below a certain parameter (e.g., 70%), it is recommended to replace the first storage module 42 or the second storage module 44. The initial first storage module 42 and the second storage module 44 are components with normal performance. In another embodiment, the ratio of the suggested condition can be changed according to a calculation method, but is not limited thereto, and can also be determined by adjusting the actual parameter (e.g., above 70% or below 70%) or by configuring a slope based on the change in time and charging voltage.

[0032] The control core 52 issues a notification to the computer load 70 according to the presented conditions. The computer load 70 notifies the administrator when to replace the first storage module 42 and the second storage module 44, so as to ensure that the electromechanical load 60 and the computer load 70 can smoothly complete the shutdown or data backup of the respective loads when a failure or sudden power outage occurs.

[0033] Subsequently, if a power outage occurs, a fuse blows, a malfunction or failure occurs, or the computer load 70 is shut down normally, the power switch 10 Open In step S82, the supply of AC current is stopped due to various reasons. Open When switching the circuit state, the standby power supply supplies power, that is, the first storage module 42 and the second storage module 44 can supply power to the electromechanical load 60 and the computer load 70 in a timely manner. The control core 52 Open Based on the time until the power is cut off under the circuit condition (see step S83), the computer load 70 is caused to shut down the system software (see step S84). In this embodiment, the power cut time is defined as 2 seconds. Open When the time until the power is turned off under the circuit state has not yet been reached, the control core 52 will not instruct the computer load 70 to execute a system software shutdown, thereby avoiding a malfunction or failure caused by repeated shutdown and startup of the load within a short period of time due to a malfunction or momentary interruption and instantaneous recovery.

[0034] Regardless of whether the system software shutdown is normally completed, if the system software shutdown is normally completed, the first switch circuit 412 and the second switch circuit 432 of the backup power supply 40 will execute a hardware shutdown. Step S85 is to check whether the shutdown operation of the computer load 70 is completed according to the judgment of the system software shutdown. When the computer load 70 outputs a shutdown completed signal to the backup power supply 40 to interrupt the power supply operation (see step S89), the first switch circuit 412 and the second switch circuit 432 Open Because they are switched to a circuit state, the first storage module 42 and the second storage module 44 are cut off from the path of supplying electricity to the electromechanical load 60 and the computer load 70 .

[0035] If the software shutdown is not yet complete, the computer load 70 sends a shutdown complete signal when it reaches a first shutdown period (see step S86), i.e., sends a hardware shutdown signal. Then, after the shutdown operation of the computer load 70 is completed, proceed to step S89, and the power supply operation of the backup power supply is interrupted. If the shutdown operation of the computer load 70 is not yet complete, the computer load 70 sends a shutdown complete signal when it reaches a second shutdown period (see step S87), i.e., sends a second hardware shutdown signal, and executes step S89. In addition to the software shutdown, the backup power supply 40 can be controlled based on the shutdown complete signal from the computer load 70 to perform a hardware shutdown, thereby avoiding abnormal termination or failure of the computer load 70.

[0036] The second shutdown period is longer than the first shutdown period. When the first shutdown period is confirmed, it indicates that the first hardware shutdown has been completed normally. Since the second shutdown period is confirmed by the computer load that did not complete the shutdown normally during the previous hardware shutdown, the power supply of the backup power supply 40 is cut off by the hardware shutdown. This embodiment will be described by giving the process of hardware shutdown after the software shutdown is completed normally and the process of hardware shutdown after the software shutdown is not completed normally. In another embodiment, the hardware shutdown does not need to refer to the first shutdown period and the second shutdown period. After the software shutdown is completed, the power supply of each storage module can be cut off by proceeding with the hardware shutdown. [Explanation of symbols]

[0037] 100: Power supply system 10: Power switch 11: Input power supply 20:First rectifier 30:Second rectifier 40: Standby power supply 41: First protection module 411: First input diode 412: First switch circuit 413: First low voltage protection circuit 4131: Voltage monitoring unit 414: First output diode 42: First storage module 43: Secondary protection module 431: Second input diode 432: Second switch circuit 433: Second low voltage protection circuit 4331: Voltage monitoring unit 434: Second output diode 435: Input voltage stabilizer 436: Output voltage stabilizer 44: Second storage module 45: Energy storage unit 451: Supercapacitor 452:Resistance 453: Storage switch 50: Control core device 51: Detection circuit 52: Control Core 60: Electromechanical load 61, 71: Power supply path 70: Computer load Q1: First transistor Q2: Second transistor Q3: Third transistor P: Photocoupler R1, R2: Resistance S80 to S89: Steps

Claims

1. The device includes a power switch, a first rectifier, a second rectifier, a backup power supply, and a control core device, the power switch is connected to an input power source and switches between an open circuit state and a closed circuit state; the first rectifier is electrically connected to the power switch and the electromechanical load; the second rectifier is electrically connected to the power switch and to a computer load; the standby power supply is electrically connected to the first rectifier and the electric machine load, and has a first storage module; the control core device is electrically connected to the power switch, the computer load, and the standby power supply; When the power switch is in the closed circuit state, the first rectifier device supplies a first DC current to the electromechanical load and charges the first storage module at the same time, the second rectifier device supplies a second DC current to the computer load, and the control core device charges the first storage module to a first target voltage and monitors a first charging time until the first storage module is fully charged; The power supply system for electromechanical equipment, characterized in that when the first charging time falls below a prescribed condition, the control core device issues a notification to the computer load.

2. the standby power supply device further comprises a second storage module, the second storage module being charged by the first direct current; the control core device charges the second storage module to a second target voltage and monitors a second charging time until the second storage module is fully charged; The power supply system for electromechanical equipment according to claim 1 , wherein the control core device issues a notification to the computer load when the second charging time falls below the presented condition.

3. 3. The power supply system for electric machinery equipment according to claim 2, wherein the presented conditions include a ratio of a current usage time for charging the first storage module to the first target voltage and fully charging it to an initial usage time for charging the first storage module to the first target voltage and fully charging it, and a ratio of a current usage time for charging the second storage module to the second target voltage and fully charging it to an initial usage time for charging the second storage module to the second target voltage and fully charging it.

4. The first storage module and the second storage module each have a plurality of storage units connected in series, and each of the plurality of storage units has a supercapacitor, a resistor and a storage switch, and the storage switch is connected to the supercapacitor, the resistor and the control core device; The power supply system for electrical machinery and equipment according to claim 2 , wherein the control core device controls the storage switch according to a shutdown signal of the computer load.

5. The standby power supply further comprises a first protection module and a second protection module, the first protection module is connected to the first rectifier device, the first storage module, the control core device and the electromechanical load, and the second protection module is connected to the first rectifier device, the second storage module, the control core device and the computer load; the control core device activates the first protection module and the second protection module; the first protection module has a first input diode and a first switch circuit, a positive pole of the first input diode catches the first direct current, and a negative pole of the first input diode is connected to the first switch circuit, the first storage module and the computer load; the second protection module has a second input diode and a second switch circuit, the positive pole of the second input diode catches the first direct current, and the negative pole of the second input diode is connected to the second switch circuit, the second storage module and the computer load; 3. The power supply system for electromechanical equipment according to claim 2, wherein when the power switch is in the open circuit state, the first storage module and the second storage module separately supply electricity to the electromechanical load and the computer load to perform shutdown, and the first switch circuit and the second switch circuit are controlled by a shutdown signal of the computer load.

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