CN115885445A - Auxiliary power adapter - Google Patents
Auxiliary power adapter Download PDFInfo
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- CN115885445A CN115885445A CN202080102672.7A CN202080102672A CN115885445A CN 115885445 A CN115885445 A CN 115885445A CN 202080102672 A CN202080102672 A CN 202080102672A CN 115885445 A CN115885445 A CN 115885445A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- General Engineering & Computer Science (AREA)
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Abstract
The auxiliary power adapter (4) is disposed between the module unit (5) and the substrate (1). The auxiliary power adapter (4) is provided with: a 1 st connector connected to the substrate 1, receiving power supply from the substrate 1, and transmitting and receiving a control signal to and from the substrate 1; a 2 nd connector connected to the module unit 5 to supply power to the module unit 5 and transmit and receive a control signal to and from the module unit 5; and a power system selection unit (44) that selects either or both of the power supplied from the board (1) and the power supplied from a power supply unit different from the board (1) as the power to be supplied to the module unit (5), and supplies power from the 2 nd connector to the module unit (5).
Description
Technical Field
The invention relates to an auxiliary power adapter.
Background
In a system using a programmable logic Controller (hereinafter referred to as PLC), when a unit with large power consumption such as a high-performance unit or a high-speed arithmetic processing unit capable of performing an arithmetic operation of large-capacity data is used, there is a possibility that the power may be insufficient depending on the amount of power supplied from a power module. Here, for example, patent document 1 discloses a technique of supplying power generated inside a power supply module and power supplied from the outside to a PLC system so as to be switchable as a means for compensating for the power supply provided by a conventional power supply module.
Patent document 1: japanese patent laid-open publication No. 2011-187027
Disclosure of Invention
In the technique disclosed in patent document 1, a mechanism for switching between power generated inside the power supply module and power supplied from the outside is required. Therefore, there is a problem that the configuration of the conventional PLC system cannot be used as it is. In addition, in some PLC systems, not only a unit with high power consumption but also a unit with low power consumption is included. In this case, if the same value of power as that of the unit with large power consumption is supplied to the unit with small power consumption, the supplied power is wasted. Therefore, it is desirable to supply a required value of electric power to each module unit. However, in the technique disclosed in patent document 1, power supply lines for supplying power to the respective module units of the PLC system are common to the entire PLC system. Therefore, in the technique disclosed in patent document 1, the same value of power is supplied to each module unit. Therefore, there is a problem that it is difficult to supply a required value of electric power to each module unit.
The present invention has been made to solve the above-described problems, and an object thereof is to provide an auxiliary power adapter capable of supplying power of a required value to each module unit without changing the configuration of a PLC system.
In order to achieve the above object, the auxiliary power adapter is disposed between a module unit that controls a device to be controlled and a substrate that supplies power to the module unit and transmits and receives a control signal to and from the module unit. The auxiliary power adapter has: a 1 st connector connected to the substrate, receiving power from the substrate, and transmitting and receiving a control signal to and from the substrate; a 2 nd connector connected to the module unit to supply power to the module unit and to transmit and receive a control signal to and from the module unit; and a power system selection unit that selects either or both of the power supplied from the substrate and the power supplied from a power supply unit different from the substrate as power to be supplied to the module unit, and supplies power from the 2 nd connector to the module unit.
ADVANTAGEOUS EFFECTS OF INVENTION
The auxiliary power adapter of the present invention is installed between a substrate and a module unit of a PLC system, and can supply power of a desired value to each module unit without changing the configuration of the PLC system by selecting either or both of power supplied from the substrate and power supplied from a power supply unit different from the substrate.
Drawings
Fig. 1 is a diagram showing an example of the overall configuration of a PLC unit including an auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 2 is a sectional view of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 3 is a diagram showing the configuration of an auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 4A is a diagram showing a configuration of an electric power system selection unit of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 4B is a diagram showing power supply from the board to the power system selection unit of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 4C is a diagram showing power supply from an external power supply to the power system selection unit of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 4D is a diagram showing power supply from the board and the external power supply to the power system selection unit of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 5 is a diagram showing an example of the configuration of the auxiliary power adapter according to embodiment 2 of the present invention.
Fig. 6 is a diagram showing a hardware configuration of an auxiliary power adapter according to embodiment 2 of the present invention.
Fig. 7 is a flowchart of power supply switching processing in the auxiliary power adapter according to embodiment 2 of the present invention.
Fig. 8 is a diagram showing a modification of the configuration of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 9 is a cross-sectional view showing a modification of the configuration of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 10 is a cross-sectional view showing a modification of the configuration of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 11 is a diagram showing a modification of the configuration of the auxiliary power adapter according to embodiment 1 of the present invention.
Fig. 12 is a flowchart showing a modification of the power supply source selection process in the auxiliary power adapter according to embodiment 1 of the present invention.
Detailed Description
(embodiment mode 1)
The auxiliary power adapter 4 according to embodiment 1 of the present invention will be described below with reference to the drawings. In addition, the same or equivalent portions are denoted by the same reference numerals.
The auxiliary power adapter 4 is an adapter that is installed between the substrate 1 and the module unit 5 of the Programmable Logic Controller (hereinafter referred to as PLC) system 100 and can supply necessary power to the module unit 5 regardless of the rated capacity of the power line of the PLC system 100.
Fig. 1 is a diagram showing an example of the overall configuration of a PLC system 100 including an auxiliary power adapter 4. The PLC system 100 includes a substrate 1 to which various module units are connected, module mounting portions 2a and 2b for mounting the various module units, a power supply module 3 for supplying power to the various module units, an auxiliary power adapter 4 for supplying power to a specific module unit 5, and module units 7 and 8 for executing various processes. The module mounting portions 2a and 2b have bus connector portions 11a and 11b for mounting the auxiliary power adapter 4, the module units 5, 7, and 8, and the like. Hereinafter, the module mounting portions 2a and 2b are collectively referred to as the module mounting portion 2. Hereinafter, the bus connector portions 11a and 11b are collectively referred to as the 1 st bus connector portion 11.
here,base:Sub>A cross-sectional view, viewed from the direction of the black arrow, which will be cut using the linebase:Sub>A-base:Sub>A' shown in fig. 1 is shown in fig. 2. The auxiliary power adapter 4 is attached to the 1 st bus connector portion 11 of the substrate 1 via the 2 nd bus connector portion 41. The external power supply 9 to which electric power is supplied from the outside is connected to the auxiliary power adapter 4 via the external power supply connection portion 45. Further, the module unit 5 is attached to the 3 rd bus connector portion 42 of the auxiliary power adapter 4 through the 4 th bus connector portion 51.
Fig. 3 is a diagram showing the structure of the auxiliary power adapter 4. The auxiliary power adapter 4 includes a 2 nd bus connector portion 41 to be attached to the substrate 1, a 3 rd bus connector portion 42 to be attached to the module unit 5, a signal bypass portion 43 that relays a control signal, a bus signal, and the like, a power system selection portion 44 that selects power to be supplied to the module unit 5, and an external power supply connection portion 45 to which the external power supply 9 is connected.
The 2 nd bus connector portion 41 is a connector for mounting the auxiliary power adapter 4 to the substrate 1. The auxiliary power adapter 4 receives power supplied from the power module 3 shown in fig. 1 to the substrate 1 via the 2 nd bus connector portion 41. The auxiliary power adapter 4 transmits and receives control signals, bus signals, and the like to and from the board 1 via the 2 nd bus connector portion 41. The 3 rd bus connector section 42 is a connector for mounting the auxiliary power adapter 4 to the module unit 5. The auxiliary power adapter 4 supplies power to the module unit 5 via the 3 rd bus connector section 42. The auxiliary power adapter 4 transmits and receives control signals, bus signals, and the like to and from the module unit 5 via the 3 rd bus connector section 42. The 2 nd bus connector portion 41 is an example of the 1 st connector in claims. The 3 rd bus connector portion 42 is an example of the 2 nd connector in claims.
The signal bypass portion 43 receives a control signal, a bus signal, and the like from the substrate 1 via the 2 nd bus connector portion 41. The signal bypass unit 43 transmits the received control signal, bus signal, and the like to the module unit 5. The power system selection unit 44 receives power supplied from the power module 3 via the 2 nd bus connector unit 41 and power supplied from the external power supply 9 via the external power supply connection unit 45. The power system selection unit 44 selects either or both of the received power supplied from the power module 3 and the power supplied from the external power supply 9, and supplies the selected power to the module unit 5 via the 3 rd bus connector unit 42. The external power supply connection portion 45 is a connection portion for connecting the external power supply 9. The external power supply connection unit 45 supplies the electric power supplied from the external power supply 9 to the electric power system selection unit 44.
Specifically, the power system selection unit 44 of the auxiliary power adapter 4 is configured as a mechanical switch capable of selecting the power supplied from the board 1 and the power supplied from the external power supply 9 connected to the external power supply connection unit 45 in accordance with the power consumption of the module unit 5, the application of the PLC system 100, and the like. In embodiment 1, the power system selection unit 44 is switched by an operator. Thereby, the power supplied from the substrate 1 and the power supplied from the external power supply 9 are appropriately supplied to the module unit 5. An example of the configuration of the power system selection unit 44 will be described below with reference to fig. 4A to 4D.
Fig. 4A is a diagram showing the configuration of the power system selection unit 44. The power system selection unit 44 includes a power switching unit 441 that switches power to be supplied, and a power splitting unit 442 that circulates power supplied from one side and cuts off power supplied from the other side. The power switching unit 441 includes a 1 st power switching unit 441a for selecting power supplied from the substrate 1, a 2 nd power switching unit 441b for selecting power supplied from the external power supply 9, a 3 rd power switching unit 441c for selecting power supplied from the substrate 1 and the external power supply 9, and a selecting unit 441d. The power separating portion 442 includes a 1 st power separating portion 442a that circulates power supplied from the substrate 1 and cuts off power supplied from the external power supply 9, and a 2 nd power separating portion 442b that circulates power supplied from the external power supply 9 and cuts off power supplied from the substrate 1.
The power system selection unit 44 switches the supply source of the power to be supplied to the module unit 5 by selecting the 1 st power switching unit 441a to the 3 rd power switching unit 441c included in the power switching unit 441 by the selection unit 441d. Specifically, as shown in fig. 4B, in the case where the selection portion 441d is connected to the 1 st power switching portion 441a, power from the substrate 1 is supplied to the module unit 5. Here, the black arrows shown in fig. 4B to 4D are arrows indicating the flow of power.
As shown in fig. 4C, when the selection unit 441d is connected to the 2 nd power switching unit 441b, power from the external power supply 9 is supplied to the module unit 5. As shown in fig. 4D, when the selection unit 441D is connected to the 3 rd power switching unit 441c, power from the substrate 1 and the external power supply 9 is supplied to the module unit 5.
As described above, according to embodiment 1, the auxiliary power adapter 4 is mounted between the board 1 and the module unit 5 of the PLC system 100 via the 2 nd bus connector portion 41 and the 3 rd bus connector portion 42, and either or both of the power supplied from the board 1 and the power supplied from the external power supply 9 can be selected by the power system selection portion 44. This enables power necessary for stable operation to be supplied to the module unit 5.
In addition, according to embodiment 1, the auxiliary power adapter 4 can transmit and receive a control signal, a bus signal, and the like between the board 1 and the module unit 5 of the PLC system 100 through the signal bypass unit 43. Thus, even if the auxiliary power adapter 4 is mounted between the board 1 and the module unit 5 of the PLC system 100, the conventional functions of the conventional PLC system 100 are not impaired, and the PLC system can operate stably.
(embodiment mode 2)
In embodiment 1, power supplied from the external power supply 9 to the module unit 5 can be supplied. However, when a power failure occurs in the external power supply 9, the configuration of embodiment 1 cannot stably supply electric power to the module unit 5. Here, embodiment 2 includes a power storage element unit 46 instead of the external power supply 9. In embodiment 2, the power supply state detection unit 47 is provided, and the power supply state detection unit 47 detects whether or not the power supply state from the substrate 1 is normal, and instructs the power system selection unit 44 to select the power supply source based on the detection result.
Fig. 5 is a diagram showing the configuration of the auxiliary power adapter 4A according to embodiment 2. The auxiliary power adapter 4A includes a 2 nd bus connector portion 41 for mounting to the board 1, a 3 rd bus connector portion 42 for mounting to the module unit 5, a signal bypass portion 43 for relaying a control signal, a bus signal, and the like, a power system selection portion 44 for selecting power to be supplied to the module unit 5, an electric storage element portion 46 for storing power supplied from the board 1, and a power supply state detection portion 47 for detecting a power supply state from the board 1 and giving an instruction to select a power supply source to the power system selection portion 44.
The power storage element unit 46 stores power supplied from the substrate 1 via the 2 nd bus connector. The power storage element unit 46 supplies the stored power to the module unit 5 in accordance with an instruction from the power system selection unit 44. The power storage element unit 46 can be configured using, for example, a capacitor, a rechargeable battery, or the like. The power storage element unit 46 and the external power supply 9 shown in fig. 3 are examples of the power supply unit in the claims.
The power supply state detection unit 47 monitors the supply state of power supplied from the substrate 1 via the 2 nd bus connector unit 41. When detecting that the power supply state from the substrate 1 is abnormal, for example, when the power value is lower than a reference value, the power supply state detection unit 47 transmits an instruction to switch the power supply source to the power system selection unit 44. Similarly, when the power supply state detection unit 47 detects that the power supply state from the substrate 1 is abnormal, for example, an instantaneous power failure, from the signal bypass unit 43, it sends an instruction to switch the power supply source to the power system selection unit 44. The power system selection unit 44 selects a power supply source in accordance with an instruction from the power supply state detection unit 47. Other structures are the same as those in embodiment 1.
Next, fig. 6 shows an example of the hardware configuration of the auxiliary power adapter 4. The auxiliary power adapter 4 includes a 2 nd main line connector 401 for connection to the substrate 1, a 3 rd main line connector 402 for connection to the module unit 5, a power source interface 403 for connection to the external power source 9, a switch 404 for switching power supply sources, a storage device 405 for storing various programs and data, a memory 406 for reading various programs, a processor 407 for executing various programs, and a bus 408. The 2 nd, 3 rd, power interface 403, storage 405, memory 406 and processor 407 are interconnected by a bus 408.
The 2 nd and 3 rd bus connectors 401 and 402 can be configured using, for example, a serial bus connector for serial communication or a parallel bus connector for parallel communication. The 2 nd bus connector 401 can function as the 2 nd bus connector section 41 shown in fig. 3. In addition, the 3 rd bus connector 402 can function as the 3 rd bus connector section 42 shown in fig. 3.
The power supply interface 403 is an interface to which the external power supply 9 can be connected and to which power supplied from the external power supply 9 can be applied. The power supply interface 403 can function as the external power supply connection part 45 shown in fig. 3. The power source interface 403 may be constituted by, for example, a connection terminal capable of connecting the external power source 9 and applying power.
The switch 404 is a switch capable of selecting and switching either one or both of the substrate 1 and the external power supply 9 as a power supply source. The switch 404 can function as the power system selection unit 44 shown in fig. 3. Thus, the switch 404 includes the structure shown in fig. 4A to 4D. The switch 404 may be configured by a switch that can be turned ON and OFF by software control, for example.
The storage device 405 stores various programs executed by the processor 407, data necessary for the processor 407 to execute the various programs, and the like. The storage device 405 can be configured using a storage element and a storage medium such as a volatile or nonvolatile semiconductor Memory, e.g., an SD (Secure Digital) card, a flash Memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a magnetic disk, a flexible disk, an optical disk, a CD, a compact disk, a mini disk, and a DVD (Digital Versatile Disc).
The memory 406 is a storage element that can read various programs stored in the storage device 405 when the PLC system 100 is started up and can execute the various programs by the processor 407. The Memory 406 may be configured using a volatile or nonvolatile semiconductor Memory capable of writing data at high speed, such as a RAM (Random Access Memory) or a flash Memory. The processor 407 executes the program developed in the memory 406. The processor 407 may be configured using various arithmetic Processing devices such as a CPU (Central Processing Unit) and an MPU (Micro-Processing Unit).
The auxiliary power adapter 4A can realize the functions performed by the power system selection unit 44 and the power supply state detection unit 47 shown in fig. 5 by reading various programs stored in the storage device 405 into the memory 406 and executing the various programs by the processor 407. Hereinafter, the process of switching the power supply source performed by the power system selection unit 44 will be described with reference to the flowchart of the power supply switching process shown in fig. 7.
The power supply switching process is stored in the storage device 405 shown in fig. 6 as a power supply switching process program. After the auxiliary power adapter 4A is activated, the power supply switching processing program stored in the storage device 405 is read into the memory 406 and executed by the processor 407 shown in fig. 6.
The power supply state detection unit 47 determines whether or not the state of power supply from the substrate 1 via the 2 nd bus connector unit 41 is normal (step S11). When detecting that the power supply state from the substrate 1 is normal, for example, when the power value is equal to or greater than the reference value, the power supply state detection unit 47 determines that the state of power supply from the substrate 1 is normal (step S11: YES). The power supply state detection unit 47 notifies the power system selection unit 44 that the power supplied from the substrate 1 is normal (step S12). The power system selection unit 44 supplies power from the substrate 1 to the module unit 5. The power system selection unit 44 also supplies the power supplied from the substrate 1 to the power storage element unit 46 (step S13). The electric storage element unit 46 is charged by electric power supplied from the substrate 1.
In step S21, when detecting that the power supply state from the substrate 1 is abnormal, the power supply state detection unit 47 determines that the state of power supply from the substrate 1 is abnormal (step S11: NO). Specifically, the power supply state detection unit 47 detects that the power supply state from the substrate 1 is abnormal, for example, the power value is lower than a reference value. Alternatively, the following is the case: the power supply state detection unit 47 detects that an instruction to switch the power supply source is transmitted from the signal bypass unit 43 to the power system selection unit 44 when an abnormality occurs in the power supply state from the substrate 1, for example, when an instantaneous power failure occurs.
The power supply state detection unit 47 notifies the power system selection unit 44 of an abnormality in the power supplied from the substrate 1 (step S14). The power system selection unit 44 switches the power supplied to the module unit 5 from the power supplied from the substrate 1 to the power supplied from the power storage element unit 46 (step S15). The power supply state detection unit 47 returns to step S11, and repeats the processing from step S11 to step S15.
As described above, according to embodiment 2, the power storage element unit 46 is provided in place of the external power supply 9, and the power supply state detection unit 47 detects whether or not the power supply state from the substrate 1 is normal, and instructs the power system selection unit 44 to select the power supply source based on the detection result. Thus, in embodiment 2, in addition to the effect of embodiment 1, when an abnormality occurs in the state of power supply from the substrate 1, power supply from the power storage element unit 46 can be promptly executed. This can maintain the power supply to the module unit 5 for a certain period of time. Therefore, the module unit 5 can execute a normal shutdown process while protecting data such as storing data on a volatile memory in a nonvolatile memory and storing data acquired from a device to be controlled in the storage device 405 shown in fig. 6. Therefore, even when an abnormality occurs in the power supply state from the substrate 1, disappearance, breakage, or the like of data can be avoided.
(modification 1)
In embodiment 1 and embodiment 2 described above, as the hardware configuration of the auxiliary power adapter 4 shown in fig. 6, a storage device 405 that stores various programs and data, a memory 406 that reads various programs, and a processor 407 that executes various programs are used. Not limited to this, the storage device 405, the memory 406, and the processor 407 may be implemented together using, for example, an ASIC (Application Specific Integrated Circuit).
(modification 2)
In embodiment 1 described above, electric power is directly supplied from the external power supply 9 via the external power supply connection unit 45 to the power system selection unit 44 of the auxiliary power adapter 4 shown in fig. 3. Not limited to this, for example, like the auxiliary power adapter 4B shown in fig. 8, a power conversion unit 48 that generates power in accordance with the specification of the module unit 5 from the external power supply 9 may be interposed between the power system selection unit 44 and the external power supply connection unit 45.
(modification 3)
In embodiment 1 described above, as shown in fig. 2, the auxiliary power adapter 4 is disposed between the board 1 and the module unit 5, and the external power supply connection unit 45 is provided at the lower portion of the auxiliary power adapter 4. Not limited to this, the external power supply connection unit 45 may be provided below the auxiliary power adapter 4 shown in fig. 9. The external power supply connection unit 45 may be arranged so as to extend above the auxiliary power adapter 4 shown in fig. 10. Further, the external power supply connection portion 45 may be provided on a side surface of the auxiliary power supply adaptor 4. With this configuration, the thickness of the auxiliary power adapter 4 between the substrate 1 and the module unit 5 can be suppressed.
(modification 4)
In embodiment 1 described above, the power system selection unit 44 of the auxiliary power adapter 4 is configured as a mechanical switch that can be switched by an operator. Without being limited thereto, the switching may be automatically performed by software. Fig. 11 shows a configuration of the auxiliary power adapter 4 according to modification 3. The signal bypass unit 43 of the auxiliary power adapter 4 notifies the power system selection unit 44 of a control signal in response to the power supply state of the power module 3 shown in fig. 1, for example, a normal state in which power is stably supplied, an abnormal state such as an instantaneous power failure, or a power reduction.
The auxiliary power adapter 4 can realize the functions performed by the signal bypass unit 43 and the power system selection unit 44 shown in fig. 11 by reading various programs stored in the storage device 405 shown in fig. 6 into the memory 406 and executing them by the processor 407. The following describes the power supply source switching process for the module unit 5 executed by the power system selection unit 44, with reference to the flowchart of the power supply source selection process shown in fig. 12.
The power supply source selection processing is stored in the storage device 405 as a power supply source selection processing program. After the start-up, the auxiliary power adapter 4 reads the power supply source selection processing program stored in the storage device 405 into the memory 406 and executes the program by the processor 407.
The power system selection unit 44 determines whether or not the power supplied from the power module 3 shown in fig. 1 to the auxiliary power adapter 4 via the board 1 is normal (step S21). Specifically, the power system selection portion 44 determines whether the signal notified from the signal bypass portion 43 shown in fig. 3 in correspondence to the power supply state of the power module 3 is a signal in a normal state or a signal in an abnormal state. When the signal notified from the signal bypass unit 43 is, for example, a signal in a normal state in which power is stably supplied, the power system selection unit 44 determines that the power supplied to the auxiliary power adapter 4 is normal (YES in step S21).
Next, the power system selection portion 44 determines whether the module unit 5 is executing the high load process (step S22). The high-load processing here refers to processing with high power consumption, such as computation of large-capacity data and high-speed computation processing. When the module unit 5 is executing the high load process (step S22: YES), the power system selection unit 44 selects the substrate 1 and the external power supply 9 as the power supply sources (step S23). Specifically, in the switch 404 shown in fig. 6, the 3 rd power switching unit 441c shown in fig. 4D is selected by the selecting unit 441D. This makes it possible to supply a part insufficient for the power supplied from the substrate 1 from the external power supply 9 to the module unit 5.
When the module unit 5 is not executing the high-load process (step S22: NO), the power system selection unit 44 selects the substrate 1 as the power supply source (step S24). Specifically, in the switch 404 shown in fig. 6, the 1 st power switching unit 441a shown in fig. 4B is selected by the selection unit 441d. This enables the power supplied from the substrate 1 to be supplied to the module unit 5.
In step S21, if the signal notified from the signal bypass unit 43 is a signal in an abnormal state such as an instantaneous power failure or a power reduction, the power system selection unit 44 determines that the power supplied to the auxiliary power adapter 4 is abnormal (step S21: NO). The power system selection unit 44 selects the external power supply 9 as the power supply source (step S25). Specifically, in the switch 404 shown in fig. 6, the 2 nd power switching unit 441b shown in fig. 4C is selected by the selection unit 441d. This enables the power supplied from the external power supply 9 to be supplied to the module unit 5. The power system selection unit 44 returns to step S21, and repeats the processing from step S21 to step S25.
(modification 5)
In embodiment 2 described above, the power storage element unit 46 is charged using the electric power supplied from the substrate 1. Not limited to this, a structure using a pre-charged power storage element unit 46 may be employed. The power storage element unit 46 may be charged by a charging power source different from the substrate 1, for example, an external power source.
(modification 6)
In embodiment 2 described above, the power storage element unit 46 shown in fig. 5 is disposed inside the auxiliary power adapter 4A. Not limited to this, the power storage element unit 46 may be connected to the outside of the auxiliary power adapter 4A. In addition, the external power supply 9 and the uninterruptible power supply device may be used instead of the power storage element unit 46.
In embodiment 1 and embodiment 2 of the present invention, the power supply source selection processing program and the power supply switching processing program may be stored in a computer-readable recording medium such as a CD-ROM (Compact disk Read Only Memory) or a DVD-ROM (Digital Versatile disk Read Only Memory) and distributed, and the programs may be installed in a computer to configure a computer that can realize functions included in the power supply source selection processing program and the power supply switching processing program. When each function is realized by sharing the OS (Operating System) and the application program or by cooperation of the OS and the application program, only the application program may be stored in the recording medium.
The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are intended to illustrate the present invention, and are not intended to limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Also, various modifications implemented within the scope of the claims and within the meaning of the disclosure equivalent thereto are considered to fall within the scope of the invention.
Industrial applicability
The present invention can be advantageously used for an auxiliary power adapter.
Description of the reference numerals
1 substrate, 2a, 2B module mounting section, 3 power supply module, 4A, 4B auxiliary power adapter, 5, 7, 8 module unit, 9 external power supply, 11 st bus connector section, 11a, 11B bus connector section, 41 nd 2 bus connector section, 42 rd bus connector section, 43 signal bypass section, 44 power system selection section, 45 external power supply connection section, 46 electric storage element section, 47 electric power supply state detection section, 48 power conversion section, 51 th 4 bus connector section, 100PLC system, 401 nd 2 bus connector, 402 rd 3 bus connector, 403 power source interface, 404 switch, 405 storage device, 406 memory, 407 processor, 408 bus, 441 electric power switching section, 441a 1 st electric power switching section, 441B 2 nd electric power switching section, 441c 3 rd electric power switching section, 441d selection section, 442 electric power separation section, 442a 1 st electric power separation section, 442B 2 nd electric power separation section.
Claims (5)
1. An auxiliary power adapter is arranged between a module unit that controls a device to be controlled and a substrate that supplies power to the module unit and transmits and receives control signals to and from the module unit,
wherein the auxiliary power adapter has:
a 1 st connector connected to the substrate, receiving power supply from the substrate, and transmitting and receiving a control signal to and from the substrate;
a 2 nd connector connected to the module unit, supplying power to the module unit, and transmitting and receiving a control signal to and from the module unit; and
and a power system selection unit that selects either or both of the power supplied from the board and the power supplied from a power supply unit different from the board as the power to be supplied to the module unit, and supplies the power from the 2 nd connector to the module unit.
2. The auxiliary power adapter of claim 1,
the connector system further includes a signal bypass unit that is disposed between the 1 st connector and the 2 nd connector and relays a control signal received from the 1 st connector to the 2 nd connector.
3. The auxiliary power adapter of claim 1 or 2,
further comprises a power supply state detection unit for detecting the supply state of the power supplied from the substrate,
the power supply state detection unit sends, to the power system selection unit, an instruction to switch the power supplied to the module unit from the power supplied from the substrate to the power supplied from the power supply unit when detecting that the supply state of the power supplied from the substrate is abnormal.
4. The auxiliary power adapter of any one of claims 1-3,
the power supply unit is an external power supply provided outside.
5. The auxiliary power adapter of any one of claims 1-3,
the power supply unit is an electric storage element unit capable of storing electric power supplied from the substrate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/039404 WO2022085077A1 (en) | 2020-10-20 | 2020-10-20 | Auxiliary power supply adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115885445A true CN115885445A (en) | 2023-03-31 |
Family
ID=75966379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080102672.7A Pending CN115885445A (en) | 2020-10-20 | 2020-10-20 | Auxiliary power adapter |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6877670B1 (en) |
| KR (1) | KR102494426B1 (en) |
| CN (1) | CN115885445A (en) |
| WO (1) | WO2022085077A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011099117A1 (en) * | 2010-02-09 | 2011-08-18 | 三菱電機株式会社 | Programmable controller |
| JP2015002546A (en) * | 2013-06-18 | 2015-01-05 | 株式会社東芝 | Remote i/o unit of duplex supervisory control system, and maintenance method thereof |
| CN205160203U (en) * | 2015-12-15 | 2016-04-13 | 韩啸 | Automatic switching power stepup transformer of no relay |
| CN107885154A (en) * | 2016-09-30 | 2018-04-06 | 欧姆龙株式会社 | Programmable logic controller (PLC) |
| WO2020165943A1 (en) * | 2019-02-12 | 2020-08-20 | 三菱電機株式会社 | Power-feeding device and electric power supply system |
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| JPH0279143U (en) * | 1988-12-06 | 1990-06-18 | ||
| JP2011187027A (en) * | 2010-03-11 | 2011-09-22 | Yokogawa Electric Corp | Power source controller and controller using the same |
| US9021159B2 (en) | 2012-09-07 | 2015-04-28 | Apple Inc. | Connector adapter |
| US9939849B2 (en) | 2014-10-30 | 2018-04-10 | Kabushiki Kaisha Toshiba | System with electronic device and extension device |
| JP2020089028A (en) * | 2018-11-22 | 2020-06-04 | キヤノン株式会社 | Electronic apparatus, module system, and control method thereof |
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2020
- 2020-10-20 CN CN202080102672.7A patent/CN115885445A/en active Pending
- 2020-10-20 WO PCT/JP2020/039404 patent/WO2022085077A1/en active Application Filing
- 2020-10-20 JP JP2021508324A patent/JP6877670B1/en active Active
- 2020-10-20 KR KR1020227044268A patent/KR102494426B1/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011099117A1 (en) * | 2010-02-09 | 2011-08-18 | 三菱電機株式会社 | Programmable controller |
| JP2015002546A (en) * | 2013-06-18 | 2015-01-05 | 株式会社東芝 | Remote i/o unit of duplex supervisory control system, and maintenance method thereof |
| CN205160203U (en) * | 2015-12-15 | 2016-04-13 | 韩啸 | Automatic switching power stepup transformer of no relay |
| CN107885154A (en) * | 2016-09-30 | 2018-04-06 | 欧姆龙株式会社 | Programmable logic controller (PLC) |
| WO2020165943A1 (en) * | 2019-02-12 | 2020-08-20 | 三菱電機株式会社 | Power-feeding device and electric power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6877670B1 (en) | 2021-05-26 |
| KR20230003644A (en) | 2023-01-06 |
| KR102494426B1 (en) | 2023-02-06 |
| JPWO2022085077A1 (en) | 2022-04-28 |
| WO2022085077A1 (en) | 2022-04-28 |
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