Refurbishment support device

Abstract

To lower refurbishment costs.SOLUTION: A refurbishment support device 30A for electric power equipment 10 comprises a management unit 31 and a selection unit 32. The management unit 31 controls the state of the electric power equipment 10, the state of components of the electric power equipment 10, and the state of in-stock components of the electric power equipment 10. When the electric power equipment 10 is a normally operating product, the selection unit 32 specifies a replacement object component of the electric power equipment 10 based upon the state of components of the electric power equipment, and selects a component to be replaced with the replacement object component of the electric power equipment 10 from among components in stock.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a technique for refurbishing (remanufacturing) electric power equipment and its associated equipment. [Background technology]

[0002] Patent Document 1 discloses a technique for reusing solar cell modules in a solar power generation system. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-171860 A Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a growing interest in the efficient use of resources through the refurbishment of electric power equipment and its associated equipment. However, the cost of always replacing parts with new ones during refurbishing is high, and there is room for improvement. [Means for solving the problem]

[0005] The electric power equipment refurbishment support device includes a management unit and a selection unit. The management unit manages the state of the electric power equipment, the state of the parts of the electric power equipment, and the state of inventory of the parts of the electric power equipment. When the electric power equipment is in normal operation, the selection unit identifies a part of the electric power equipment to be replaced based on the state of the parts of the electric power equipment, and selects a part from the inventory to replace the part of the electric power equipment to be replaced. The inventory items are not limited to second-hand items or long-term inventory items (long-term storage), and may include new items. Effect of the Invention

[0006] Costs can be kept low because parts are replaced with stock items. [Brief description of the drawings]

[0007] [Figure 1] Perspective view of the charger / discharger [Diagram 2] Charger / Discharger Block Diagram [Diagram 3] Block diagram of the refurbishment support device [Figure 4] Product and parts management sheet [Diagram 5] Inventory management sheet [Figure 6] flowchart [Figure 7] The subroutine S10 shown in Figure 6 [Figure 8] Block diagram of the refurbishment support device [Figure 9] Charger and Discharger Management Sheet [Figure 10] Inventory management sheet [Figure 11] flowchart [Figure 12] Diagram showing the configuration of communication devices DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] (Outline of this embodiment) (1) An electric power equipment refurbishment support device according to one embodiment of the present invention includes a management unit and a selection unit. The management unit manages the state of the electric power equipment, the state of the parts of the electric power equipment, and the state of inventory of the parts of the electric power equipment. When the electric power equipment is in normal operation, the selection unit identifies a part of the electric power equipment to be replaced based on the state of the parts of the electric power equipment, and selects a part from the inventory to replace the part of the electric power equipment to be replaced. "Normal" refers to a state in which the electric power equipment can operate normally, regardless of the presence or absence of degradation.

[0009] (2) A refurbishment support device for auxiliary equipment of electric power equipment according to one embodiment of the present invention includes a management unit and a selection unit. The management unit manages the state of the auxiliary equipment, the state of parts of the auxiliary equipment, and the state of inventory of parts for the auxiliary equipment. When the auxiliary equipment is in normal operation, the selection unit identifies parts of the auxiliary equipment to be replaced based on the state of the parts of the auxiliary equipment, and selects parts from the inventory to replace the parts of the auxiliary equipment to be replaced. "Normal" refers to a state in which the equipment can operate normally, regardless of the presence or absence of degradation.

[0010] According to the refurbishment support device of an embodiment of the present invention, electric power equipment that has been manufactured poorly, returned as second-hand, or stored for a long time can be finished and refurbished to a state equivalent to new or usable. This allows for more effective use of resources than when new electric power equipment is produced. Since parts are replaced with stock items (not limited to second-hand items or long-term stock items (long-term storage), but may also include new items), it is possible to select parts other than new ones. This allows for lower costs for refurbishing electric power equipment compared to always replacing with new parts. This is also advantageous in terms of delivery time compared to when parts to be replaced are made to order. The same applies when refurbishment is performed for auxiliary devices of electric power equipment (e.g., devices connected to electric power equipment, such as communication devices, status display devices, control panels, switches, and higher-level controllers of electric power equipment).

[0011] Electric power equipment is used not only indoors, but also outdoors. The indoor and outdoor environments are very different, and deterioration is greatly influenced by the environment, such as air-conditioned environments, dusty places, salt damage issues, heat generation due to the amount of electricity handled, etc. By storing inventory items in the same environment, it is easier to keep the rate of deterioration constant, unlike power equipment, whose deterioration varies depending on the environment. By replacing parts with inventory items that have a constant rate of deterioration, the quality of at least the replaced parts can be maintained. Therefore, the quality of refurbished products can be maintained. The same applies to ancillary equipment.

[0012] (3) In the refurbishment support device described in (1) or (2) above, the selection unit may select an inventory item to be replaced according to the characteristics of the electric power equipment or the auxiliary equipment, where the characteristics are, for example, a manufacturing defect, a return, a long-term inventory, or the like, that led to the product being refurbished.

[0013] According to the refurbishment support device described in (3), it is possible to select an inventory item suited to the characteristics of the electric power equipment or auxiliary equipment, which is effective in making effective use of inventory items and in bringing out the performance of refurbished items.

[0014] (4) In the refurbishment support device described in (1) or (2) above, when the origin of the electric power equipment or the auxiliary equipment is a manufacturing defect, the selection unit may select, among the inventory items, the item with the longest remaining life as the part to be replaced.

[0015] The effects of the refurbishment support device described in (4) are as follows. In the case of manufacturing defects, since the electric power equipment is unused, it can be determined that it has not deteriorated due to use. Therefore, by replacing it with a stock item with a long remaining life, it is possible to maintain the refurbished item (remanufactured electric power equipment) in a state with a long remaining life and little deterioration due to use. The same applies when refurbishment of ancillary equipment.

[0016] (5) In the refurbishment support device described in (1) or (2) above, when the electric power equipment or the auxiliary equipment is a returned product, the selection unit may select an inventory item to be replaced in accordance with the remaining life of a non-replaceable part of the electric power equipment or the auxiliary equipment.

[0017] The effects of the refurbishment support device described in (5) are as follows. Since returned products may have been distributed on the market and used, there is a possibility that the lifespan of non-replaceable parts may be shorter than when they were new. With this configuration, a stock item to be replaced is selected according to the remaining lifespan of the non-replaceable part whose lifespan has been shortened, so that the part lifespans of refurbished products (remanufactured electric power equipment) can be roughly the same. This allows the parts to perform to their full potential. It also makes it possible to prevent stock items with long lifespans from being given priority for use. The same applies when refurbishment of ancillary equipment.

[0018] (6) In the refurbishment support device described in (1) or (2) above, when the electric power equipment or the auxiliary equipment is a long-term inventory item, the selection unit may identify the part among the electric power equipment or the auxiliary equipment that has the shortest remaining life as the part to be replaced, and select the inventory item to be replaced based on the remaining life of a non-replaceable part of the electric power equipment or the auxiliary equipment.

[0019] According to the refurbishment support device described in (6), the part with the shortest remaining life among the electric power equipment stored for a long time is identified as the part to be replaced and is replaced. Therefore, the remaining life of the refurbished product (remanufactured electric power equipment) can be extended compared to before the refurbishment. The same applies when refurbishment of auxiliary equipment stored for a long time.

[0020] (7) The refurbishment support device according to any one of (1) to (6) may have a first estimation unit that estimates the remaining life of the refurbished product based on the remaining life of the non-replacement part and the remaining life of the stock product.

[0021] According to the refurbishment support device described in (7), it is possible to improve the accuracy of estimating the life span of a refurbished product (remanufactured electric power equipment) and contribute to the maintenance and operation planning of the electric power equipment. The same applies when refurbishment of auxiliary equipment is performed.

[0022] (8) The refurbishment support device according to any one of (1) to (7) may further include a second estimation unit that estimates an environmental load reduction amount of the refurbished product based on an environmental load amount of a new product and an environmental load amount of the refurbished product.

[0023] According to the refurbishment support device described in (8), the value of the environmental load reduction can be clarified by estimating the amount of the environmental load reduction, and this can contribute to the positive use of refurbished products (remanufactured electric equipment).

[0024] (9) In the refurbishment support device according to any one of (1) to (8), the selection unit may select an inventory item to be replaced depending on a deterioration state of the electric power device or the auxiliary device.

[0025] According to the refurbishment support device described in (9), since the deterioration of electric power equipment can be taken into consideration when refurbishment is performed, it is possible to prevent the quality of the refurbished product from becoming excessive, and it is effective in maintaining the performance of the refurbished product. The same applies when refurbishment of auxiliary equipment is performed.

[0026] (10) In the refurbishment support device described in (9), when the electric power device or the auxiliary device is a used and deteriorated product, the selection unit may select a used and deteriorated stock product.

[0027] According to the refurbishment support device described in (10), the entire refurbished product including non-replacement parts and replacement parts can be brought to a worn-out state.

[0028] (11) In the refurbishment support device described in (9), when the electric power equipment or the auxiliary equipment is an item that has deteriorated over time, the selection unit may select an inventory item that has deteriorated over use.

[0029] According to the refurbishment support device described in (11), the entire refurbished product including non-replacement parts and replacement parts can be brought to the same state as when the parts deteriorated with time.

[0030] <Embodiment 1> The following describes a refurbishment support device 30A for a charger / discharger 10. Refurbishment refers to repairing a product or used equipment (including returned goods, leased goods, and long-term inventory goods) that has been returned to a manufacturer as a defective product, and restoring it to a condition equivalent to new or usable, or to an item that has been restored to such a condition.

[0031] 1. Configuration of the charger / discharger 10 Fig. 1 is a perspective view of a charger / discharger 10, and Fig. 2 is a block diagram showing the electrical configuration of the charger / discharger 10. The charger / discharger 10 is a device that charges or discharges an automobile battery via a charge / discharge cable 10A. The charger / discharger 10 is an example of the "electric power device" of the present invention.

[0032] As shown in Fig. 2, the charger / discharger 10 is composed of a circuit breaker 11, a bidirectional conversion unit 12, a ground fault relay 13, a charge / discharge connector 14, an external communication board 15, a control board 16, an LCD display monitor 17, and a housing 18. An identification number (A00001 in Fig. 2) is assigned to the charger / discharger 10, enabling individual identification.

[0033] 2.Refurbishment Support Device 30A 3 is a block diagram of the refurbishment support device 30 A. The refurbishment support device 30 A has a management unit 31, a selection unit 32, a communication unit 33, an input unit 34, and a data storage unit 35.

[0034] The refurbishment support device 30A is connected to a network 40. The charger / discharger 10 and an inventory management device 50 are connected to the network 40. The inventory management device 50 manages the inventory of parts 11 to 17 that constitute the charger / discharger 10. The inventory is stored, for example, in a temperature-controlled warehouse. The inventory is not limited to second-hand products or long-term inventory products (long-term storage), and may include new products. The inventory is managed by part type. An identification number is assigned to the inventory, making it possible to identify individual inventory products of the same part type.

[0035] The refurbishment support device 30A is configured to collect various data, such as the usage status of the charger / discharger 10 and the storage status of inventory items, from the charger / discharger 10 and the inventory management device 50 via the network 40, and to store the following data in the data memory unit 35.

[0036] (1) Data on the condition of the charger / discharger 10 and components 11 to 17 (2) Data on inventory status

[0037] The data storage unit 35 stores a management program 36 for managing data, a management sheet S1 shown in FIG. 4, and a management sheet S2 shown in FIG.

[0038] The management sheet S1 shown in FIG. 4 is provided for each individual charger / discharger 10, and the management unit 31 can manage data on five items (A) to (E) for the charger / discharger 10 and its components 11 to 17.

[0039] <Management items of charger / discharger 10 and parts 11 to 17> (A) Manufacturing date and time (number of days since manufacturing) (B) Usage (C) Years of use (D) Number of uses (E) Remaining life

[0040] The management unit 31 periodically acquires the data (B) to (D) from the charger / discharger 10 via the network 40 and updates the information (A) to (E), thereby managing the latest status of the charger / discharger 10 and its components 11 to 17. The remaining life of (E) can be estimated, for example, based on the information (A) to (D).

[0041] Management sheet S2 shown in Fig. 5 is provided for each type of parts 11-17, and can manage data on four items (A) to (D) for the stock items (individual parts) of each of parts 11-17 managed by inventory management device 50. Fig. 5 shows management sheets for circuit breaker 11 and bidirectional conversion unit 12, among parts 11-17.

[0042] <Inventory control items 11 to 17> (A) Manufacturing date and time (number of days since manufacturing) (B) Storage conditions (C) Usage history (years of use) (D) Remaining life

[0043] Management unit 31 periodically acquires data (B) and (C) from inventory management device 50 via network 40 and updates information (A) to (D), thereby managing the latest status of inventory items. The remaining life of (D) can be estimated, for example, based on information (A) to (C).

[0044] The management items of the inventory are not limited to (A) to (D) and may include the usage environment of the inventory, the number of times it has been used, the serial number, the number identifying the storage location, and the like.

[0045] 3.Automatic selection of stock items 6 is a flowchart showing the automatic selection process of an inventory item. When refurbishing, the refurbishment worker inputs the following information about the charger / discharger 10 to be refurbished into the refurbishment support device 30:

[0046] (1) Identification number of the charger / discharger 10 (2) The characteristics of the charger / discharger 10 (manufacturing defects, returns, or long-term inventory items) (3) Defective parts (only in the case of manufacturing defects and returns)

[0047] When the above information is input to the refurbishment support device 30 by the refurbishment worker via the input unit 34, the selection unit 32 identifies the part to be replaced of the charger / discharger 10 (S10).

[0048] 7 shows a subroutine for identifying a part to be replaced, and the selection unit 32 first determines whether the charger / discharger 10 is in normal operation (S11). Normal operation refers to a state in which the charger / discharger 10 can operate normally, regardless of the presence or absence of degradation.

[0049] In the case of a manufacturing defect or return, it is considered that a defective part exists, and therefore the charger / discharger 10 is determined not to be in normal operation. In this case, the selection unit 32 specifies the defective part as a part to be replaced (S15). Long-term inventory will be described later.

[0050] Thereafter, the selection unit 32 selects a part to replace the part to be replaced identified in S10 from among the stock items under inventory management.

[0051] 6, in the case of a manufacturing defect (S20: YES), the selection unit 32 reads out the inventory management sheet S2 for the part to be replaced (defective part), and selects the inventory part with the longest remaining life from among the inventory parts (S50).

[0052] As a result, for example, if the part to be replaced (defective part) is circuit breaker 11, the stocked circuit breaker 11 with the longest remaining life is selected from among the stocked circuit breakers 11. In the example of Figure 5, the circuit breaker with identification number X0001 is selected.

[0053] Similarly, in the case of return (S30: YES), the selection unit 32 reads out the inventory management sheet S2 for the part to be replaced (defective part). Then, the selection unit 32 selects an inventory item according to the remaining life of the non-replaceable part of the charger / discharger 10 (S60).

[0054] As a result, for example, when the part to be replaced (defective part) is the circuit breaker 11, the remaining life of the non-replaceable parts of the charger / discharger 10 (in this case, the bidirectional conversion unit 12, the external communication board 15, the control board 16, the LCD display monitor 17, etc.) is about 8 to 10 years as shown in Fig. 4. Therefore, from the inventory of circuit breakers 11, an inventory with a similar remaining life, an inventory with identification number X0003 or X0004 shown in Fig. 5, is selected.

[0055] If the stock item with the shortest remaining life (stock item X0003) is selected from the selection candidates (stock item X0003, stock item X0004), it becomes possible to keep the stock item with the longest remaining life. If the stock item with the longest remaining life (stock item X0004) is selected, it becomes possible to reduce the risk of failure of the refurbished item.

[0056] Next, the case of long-term inventory items will be described. In the case of a long-term inventory item, although it has deteriorated over time, it is considered that there is no problem with its operation, so in S11 of Fig. 7, the charger / discharger 10 to be refurbished is determined to be in normal operation. In this case, the selection unit 32 reads out the management sheet S1 corresponding to the identification number of the charger / discharger 10 from the data storage unit 35, and compares the remaining lives of the parts 11 to 17 that constitute the charger / discharger 10. Then, the part with the shortest life is specified as the part to be replaced (S13).

[0057] In the case of FIG. 4, among the circuit breaker 11, the bidirectional conversion unit 12, the external communication board 15, the control board 16, and the LCD display monitor 17, the circuit breaker 11 has the shortest life span and is therefore identified as the part to be replaced.

[0058] If the item is a long-term stock item (S40: YES), the selection unit 32 reads out the stock item management sheet S2 for the part to be replaced (part with the shortest life span). Then, the selection unit 32 selects an item in stock according to the remaining life span of the non-replaceable part of the charger / discharger 10 (S70). The selection method of the stock item is the same as that of S60.

[0059] If the charger / discharger 10 does not fall under any of the following categories: defective, returned, and long-term stock item, the charger / discharger 10 is dealt with individually to determine a stock item to be replaced.

[0060] As described above, when the charger / discharger 10 to be worked on is defective, returned, or a long-term stock item, it is possible to automatically determine the stock item to be replaced with the part to be replaced.

[0061] Thereafter, the refurbishment worker can refurbish (restore) the charger / discharger 10 by replacing the part to be replaced specified in S10 with the stock part selected in S50 to S70.

[0062] 3.Effects According to this embodiment, for defective products, returned products, or products in stock for a long time, some of the parts 11-17 can be replaced and finished to a condition equivalent to new products or usable products, and they can be refurbished. This promotes reuse of the parts 11-17, and makes effective use of resources. In addition, because some of the parts 11-17 are replaced with stock products, the refurbishment cost can be reduced compared to when they are always replaced with new parts.

[0063] <Embodiment 2> The refurbishment support device 30B of the second embodiment differs from the refurbishment support device 30A of the first embodiment in that a first estimating unit 37 and a second estimating unit 38 are added, as shown in FIG.

[0064] The first estimation unit 37 estimates the remaining life of the refurbished product (the remanufactured charger / discharger 10) based on the remaining life of the non-replacement part and the remaining life of the stock product to be replaced.

[0065] For example, in the case below, of the non-replaceable parts 11-16 and the inventory item 17 to be replaced, the remaining lifespan of the control board 16 included in the non-replaceable parts is 8 years, which is the shortest, so the remaining lifespan of the refurbished item (remanufactured charger / discharger 10) is estimated to be 8 years.

[0066] <Non-replaceable parts and remaining life> Circuit Breaker 11 remaining life: 10 years Remaining life of bidirectional conversion unit 12: 10 years Remaining life of earth fault relay 13: 12 years Remaining life of charge / discharge connector 14: 15 years Remaining life of external communication board 15: 12 years Remaining life of control board 16: 8 years <Parts to be replaced> LCD display monitor 17 ⇒ Replaced due to failure <Inventory to be replaced and remaining life> LCD display monitor 17 remaining life: 10 years

[0067] The second estimation unit 38 estimates the environmental load reduction amount X of the refurbished product by subtracting the environmental load amount X2 of the refurbished product from the environmental load amount X1 of a new product.

[0068] The environmental load is the amount of CO2 emissions generated during the manufacture of a product or part.

[0069] X=X1-X2

[0070] The environmental load X1 of a new product (charger / discharger 10) can be calculated, for example, by adding up the environmental loads A1 to A7 of each part 11 to 17. The environmental load X2 of a refurbished product (charger / discharger) is only the environmental load A7 of the stock item to be replaced, since the environmental load of non-replaced parts can be considered to be zero.

[0071] <Environmental impact of new product X1> (New) Environmental load of Circuit Breaker 11: A1 Environmental impact of (new) bidirectional conversion unit 12: A2 (New) Environmental load of earth fault relay 13: A3 (New) Environmental impact of charging / discharging connector 14: A4 (New) Environmental load of external communication board 15: A5 (New) Environmental impact of control board 16: A6 (New) Environmental impact of LCD display monitor 17: A7

[0072] <Environmental impact of refurbished products x2> (Non-replaceable part) Environmental impact of Circuit Breaker 11: Zero (Non-replaceable part) Environmental impact of bidirectional conversion unit 12: Zero (Non-replaceable part) Environmental impact of earth fault relay 13: Zero (Non-replaceable part) Environmental impact of charge / discharge connector 14: Zero (Non-replaceable part) Environmental impact of external communication board 15: Zero (Non-replaceable part) Environmental impact of control board 16: Zero (Replacement stock item) Environmental impact of LCD display monitor 17: A7

[0073] The refurbishment support device 30B of the second embodiment can improve the accuracy of estimating the life span of a refurbished product, and contribute to the maintenance and operation planning of the charger / discharger 10. The estimation of the environmental load reduction amount X can clarify the value of the environmental load reduction, and contribute to the active use of the refurbished product.

[0074] <Embodiment 3> Electric power equipment such as the charger / discharger 10 is subject to deterioration due to use (hereinafter, use deterioration) and deterioration over time (hereinafter, time deterioration). The refurbishment support device 30A of the third embodiment is different from the refurbishment support device 30A of the first embodiment in the following two points.

[0075] (1) Managing the deterioration state of the charger / discharger 10 and inventory items (2) Selecting an inventory item according to the deterioration state of the charger / discharger 10

[0076] Fig. 9 shows a management sheet S1 for the charger / discharger 10, and Fig. 10 shows a management sheet S2 for an inventory item (bidirectional conversion unit 12). In the third embodiment, compared to the first embodiment, the deterioration state of the charger / discharger 10 is added to the management items, and the refurbishment support device 30A manages the deterioration state of the charger / discharger 10 in addition to the manufacturing date and time, usage status, years of use, number of uses, and remaining lifespan.

[0077] The same is true for inventory items, with deterioration state being added to the management items, and the refurbishment support device 30A manages the deterioration state of the inventory items in addition to the manufacturing date and time, storage status, usage history, and remaining lifespan.

[0078] As an example, there are three types of deterioration states (types): deterioration due to use, deterioration due to time, and not deteriorated. In this embodiment, if the product has been used for more than one year, it is classified as deterioration due to use, and if it has been more than one year since manufacture and there is no history of use, it is classified as deterioration due to time. If the product does not fall into the above categories, it is classified as not deteriorated. The classification method is an example, and is not limited to this example.

[0079] 11 is a flowchart showing the automatic selection process of an inventory item. The refurbishment worker inputs the following information about the charger / discharger 10 that is the target of the work into the refurbishment support device 30.

[0080] (1) Identification number of the charger / discharger 10 (2) The characteristics of the charger / discharger 10 (manufacturing defects, returns, or long-term inventory items) (3) Defective parts (only in the case of manufacturing defects and returns)

[0081] When the above information is input to the refurbishment support device 30 by the refurbishment worker via the input unit 34, the selection unit 32 first identifies the part to be replaced (S100). The method of identifying the part to be replaced is as disclosed in the first embodiment.

[0082] Thereafter, the selection unit 32 reads the management sheet S1 of the charger / discharger 10 and determines whether the charger / discharger 10 to be refurbished is a deteriorated product (S110). If the charger / discharger 10 is a deteriorated product (S110: YES), the selection unit 32 selects a deteriorated stock product (S120).

[0083] For example, when replacing the bidirectional conversion unit 12, as shown in FIG. 10, two stock items Y0003 and Y0004 are degraded products, so one of the two is selected.

[0084] If the charger / discharger 10 is not a deteriorated product (S110: NO), the selection unit 32 determines whether the charger / discharger 10 is a deteriorated product (S130). If the charger / discharger 10 to be refurbished is a deteriorated product (S130: YES), the selection unit 32 selects an inventory item that has deteriorated over time (S140).

[0085] For example, when replacing the bidirectional conversion unit 12, as shown in FIG. 10, two stock items Y0001 and Y0002 are deteriorated items, so one of the two is selected.

[0086] If the charger / discharger 10 is an undegraded product (S130: NO), the selection unit 32 selects a new product from the inventory (S140).

[0087] For example, when replacing the bidirectional conversion unit 12, as shown in FIG. 10, since Y0005 is a new product, the stock item Y0005 is selected.

[0088] Thereafter, the refurbishment worker can refurbish (restore) the charger / discharger 10 by replacing the part to be replaced specified in S100 with the stock part selected in S120, S140, and S150.

[0089] According to the third embodiment, the charger / discharger 10 can be refurbished in consideration of the deterioration state of the charger / discharger 10. In other words, if the charger / discharger 10 is a use-deteriorated product, the entire refurbished product including non-replacement parts and replacement parts can be aligned to the use-deteriorated state by replacing parts with use-deteriorated stock products. Also, if the charger / discharger 10 is a time-deteriorated product, the entire refurbished product including non-replacement parts and replacement parts can be aligned to the time-deteriorated state by replacing parts with time-deteriorated stock products.

[0090] In this configuration, by making the deterioration state of the entire refurbished product, including the non-replaced parts and the replaced parts, uniform, the quality of the refurbished product does not become excessive, and this is also effective in maintaining the performance of the refurbished product.

[0091] <Other embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings, and the following embodiments, for example, are also included within the technical scope of the present invention.

[0092] (1) In the embodiment, the object of refurbishing is a charger / discharger, but the object of refurbishing may be power equipment other than a charger / discharger, such as a power conditioner, a rectifier, a DC power supply device, an uninterruptible power supply device, or a storage battery module used in these devices. Power equipment is a general term for various devices necessary for utilizing electricity, and performs power generation, conversion from electric energy to other energy, storage, voltage conversion, power factor adjustment, power connection / cutoff, etc. The object of refurbishing may be not only power equipment, but also auxiliary equipment of the power equipment. The auxiliary equipment includes, for example, a communication device 100 for the power equipment, a status display device, a control panel, a switch, a host controller of the power equipment, and other devices connected to the power equipment. For example, as shown in FIG. 12, the communication device 100 is composed of a power supply board 110, a conversion board 120, a circuit protector 130, a network card 140, a terminal block 150, and a housing 160 for accommodating these. [Explanation of symbols]

[0093] 10 Charger / discharger (power equipment) 30A, 30B Refurbishment support equipment 31 Management Department 32 Selection section 33 Communications Department 34 Input section 35 Data storage unit 37 1st estimation part 38 Second estimation part

Claims

1. A refurbishment support device for electric power equipment, comprising: The management department and A selection unit, the management unit manages a state of the electric power equipment, a state of parts of the electric power equipment, and a state of inventory of the parts of the electric power equipment; The selection unit, when the electric power equipment is in normal operation, identifies a part of the electric power equipment to be replaced based on a state of the part of the electric power equipment; A refurbishment support device that selects a part to be replaced with the part to be replaced of the electric power equipment from among the stock items.

2. A refurbishment support device for auxiliary equipment of electric power equipment, The management department and A selection unit, The management unit manages a state of the auxiliary equipment, a state of parts for the auxiliary equipment, and a state of inventory of the parts for the auxiliary equipment, The selection unit, when the auxiliary device is in normal operation, identifies a part to be replaced of the auxiliary device based on a state of the part of the auxiliary device; a refurbishment support device that selects a part to be replaced with the part to be replaced of the auxiliary device from among the stock items;

3. The refurbishment support device according to claim 1 or 2, The selection unit selects an inventory item to be replaced depending on the characteristics of the electric power equipment or the auxiliary equipment.

4. The refurbishment support device according to claim 3, The selection unit selects, when the origin of the electric power equipment or the auxiliary equipment is a manufacturing defect, an item having the longest remaining life among the stock items as the part to be replaced.

5. The refurbishment support device according to claim 3, The selection unit selects an inventory item to be replaced according to the remaining life of a non-replaceable part of the electric power equipment or the auxiliary equipment, when the electric power equipment or the auxiliary equipment is a return product.

6. The refurbishment support device according to claim 3, When the electric power equipment or the auxiliary equipment has a long-term inventory, the selection unit specifies a part having a shortest remaining life among the electric power equipment or the auxiliary equipment as a part to be replaced, A refurbishment support device that selects an inventory item to be replaced according to the remaining life of a non-replaceable part of the electric power equipment or the auxiliary equipment.

7. The refurbishment support device according to claim 1 or 2, A refurbishment support device comprising a first estimation unit that estimates a remaining life of a refurbished product based on a remaining life of a non-replacement part and a remaining life of an inventory product.

8. The refurbishment support device according to claim 1 or 2, The refurbishment support device includes a second estimation unit that estimates an amount of environmental load reduction of the refurbished product based on an amount of environmental load of a new product and an amount of environmental load of the refurbished product.

9. The refurbishment support device according to claim 1 or 2, The selection unit selects an inventory item to be replaced depending on a deterioration state of the electric power equipment or the auxiliary equipment.

10. The refurbishment support device according to claim 9, The selection unit selects a used and deteriorated stock item when the electric power equipment or the auxiliary equipment is a used and deteriorated item.

11. The refurbishment support device according to claim 9, The selection unit selects an inventory item that has deteriorated over time when the electric power equipment or the auxiliary equipment is an item that has deteriorated over time.

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