WO2020090337A1 - 電気機器用ケース及び電力制御装置 - Google Patents
電気機器用ケース及び電力制御装置 Download PDFInfo
- Publication number
- WO2020090337A1 WO2020090337A1 PCT/JP2019/039004 JP2019039004W WO2020090337A1 WO 2020090337 A1 WO2020090337 A1 WO 2020090337A1 JP 2019039004 W JP2019039004 W JP 2019039004W WO 2020090337 A1 WO2020090337 A1 WO 2020090337A1
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- WIPO (PCT)
- Prior art keywords
- wall
- cover portion
- case
- case body
- flat plate
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
- H05K5/0214—Venting apertures; Constructional details thereof with means preventing penetration of rain water or dust
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
- H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
Definitions
- the present disclosure relates to a case for electric equipment and a power control device.
- Power control devices such as power conditioners (power conversion devices) that house electric devices that are connected to solar cells and that have the function of converting DC power from the solar cells to AC power are becoming popular mainly for home use. I'm doing it. Since such a power control device is often installed outdoors, high waterproofness is required for the case that houses the electric device.
- power conditioners power conversion devices
- Patent Document 1 in a case that includes a main body case having an opening and a front cover that covers the opening of the main body case, in addition to the front cover front surface that covers the opening of the main body case, It is disclosed that a structure in which the top surface of the front cover that covers the upper surface of the case is integrally provided to form a double structure in which the top surface of the front cover and the top surface of the main body case overlap each other to improve waterproofness. ..
- An electric device case is an electric device case that accommodates an electric device, and includes a case body having an opening, a rectangular flat plate-shaped cover portion, and a curve that is continuous to one side of the flat plate-shaped cover portion.
- a cover body attached to the case body and covering the opening; and a cover body provided between the case body and the flat plate-shaped cover portion.
- a seal member for sealing, and a communication portion provided inside the curved cover portion so as to extend in a direction along the one side of the flat plate-shaped cover portion, and communicated with the outside between the curved cover portion and the case body.
- a power control device is characterized by including any of the electric device cases according to the present disclosure and an electric device housed in the electric device case.
- FIG. 3 is a perspective view of a power control device according to an embodiment of the present disclosure. It is a disassembled perspective view of the electric power control apparatus shown in FIG. It is a perspective view of the case main body shown in FIG. It is a longitudinal cross-sectional view in the 4th wall side part and the 5th wall side part of the electric power control apparatus shown in FIG. It is a perspective view of the cover body shown in FIG.
- FIG. 2 is a perspective view of the power control device shown in FIG. 1 with a cover body and electric equipment removed. It is a perspective view of the partition shown in FIG. It is sectional drawing which shows the communicating part provided inside the curved cover part.
- the purpose of the present disclosure is to provide a case for electric equipment and a power control device that improve functionality while ensuring functionality.
- the power control device 1 includes an electric device case 2 and an electric device 3 housed in the electric device case 2.
- An electric device 3 schematically shown in FIG. 1 is connected to a solar cell installed on, for example, a roof of a house, converts DC power generated by the solar cell into AC power, and outputs the AC power to an electric system of the house. It has a conversion function. That is, the power control device 1 is configured as a home power conditioner (power conversion device).
- the power control device 1 includes a plurality of types of electric devices having different functions or configurations, such as a fuel cell, a storage battery, and a ventilation fan, in addition to the above-described electric device 3 having a power conversion function in the electric device case 2. It is also possible to have a configuration that accommodates.
- a lithium ion battery or a nickel hydrogen battery can be used.
- the electric device case 2 can also accommodate members such as a heat insulating material and a cushioning material.
- the electric device 3 housed in the electric device case 2 is not limited to the one having the above-described power conversion function for the solar cell, but may be, for example, a fuel cell, a substation, or a function of supplying electric power to a commercial power system. It may be an electric device having another function or configuration, such as one provided with.
- the power control device 1 can be installed outdoors.
- the power control device 1 is installed, for example, on the outer wall of a house by using a mounting bracket, a gantry, and the like.
- the power control device 1 can be installed not only outdoors but also in other places such as indoors.
- the electric device case 2 includes a case body 10, a cover body 20, a first partition wall 30, a second partition wall 31, an upper cover 40, and a lower cover 50.
- the case body 10 has a box shape having a first wall 11, a second wall 12, a third wall 13, a fourth wall 14 and a fifth wall 15.
- the case body 10 is a cast product of an aluminum alloy, and the first wall 11, the second wall 12, the third wall 13, the fourth wall 14 and the fifth wall 15 are integrally connected. It is provided. With such a configuration, the case body 10 having the above-described shape can be easily manufactured with high productivity.
- the case body 10 is not limited to the cast product of the aluminum alloy described above, but may be a cast product of another metal such as cast iron. Further, the case body 10 is not limited to a metal cast product, but may be made of another material such as an injection molded product of a synthetic resin material. Further, the case main body 10 includes the first wall 11, the second wall 12, the third wall 13, the fourth wall 14 and the fifth wall 15 which are formed separately from each other, and are joined to each other by means such as welding, bonding and fastening. It is also possible to have an integrally connected configuration.
- the first wall 11 has a first side 11a and a second side 11b that are parallel to each other. Further, the first wall 11 has a third side 11c and a fourth side 11d that are orthogonal to the first side 11a and the second side 11b, respectively, and are parallel to each other. Thus, the first wall 11 has a rectangular plate-like outer shape having the four sides 11a to 11d. In the present embodiment, the first wall 11 constitutes the back surface of the case body 10.
- the second wall 12 has an elongated rectangular plate shape, and is connected to the first wall 11 at a right angle on the first side 11a.
- the third wall 13 is in the shape of an elongated rectangular plate similar to the second wall 12, and is connected to the first wall 11 at a right angle on the second side 11 b so as to face the second wall 12.
- the second wall 12 and the third wall 13 are opposed to each other in parallel with each other and form side surfaces facing the side of the case body 10.
- the fourth wall 14 has an elongated plate shape and is continuous to the third side 11c of the first wall 11 at a right angle and at a right angle to the upper side of the second wall 12 and the third wall 13 on the upper side in FIG. It is connected to.
- the fourth wall 14 has a trapezoidal protruding portion that protrudes in a direction away from the first wall 11 with respect to the second wall 12 and the third wall 13, and the fourth wall 14 has a trapezoidal protruding portion.
- the surface parallel to the surface is the end surface 14a of the fourth wall 14 that faces away from the first wall 11.
- the fourth wall 14 forms a top surface that faces upward of the case body 10.
- the fifth wall 15 has an elongated plate shape having a trapezoidal protruding portion similar to the fourth wall 14, and is perpendicular to the fourth side 11 d of the first wall 11 so as to face the fourth wall 14.
- the second wall 12 and the third wall 13 are connected to each other at right angles to the lower sides of the second wall 12 and the third wall 13 on the lower side in FIG.
- a surface of the protruding portion of the fifth wall 15 parallel to the surface of the first wall 11 is an end surface 15a of the fifth wall 15 facing the opposite side to the first wall 11.
- the fifth wall 15 constitutes a bottom surface of the case body 10 that faces downward.
- the inside of the case body 10 is a housing space 10a, and the electric device 3 is arranged in the housing space 10a.
- the side of the case body 10 facing the first wall 11 is an opening 10b.
- the cover body 20 includes a flat plate-shaped cover portion 21, a first side surface cover portion 22 that covers the second wall 12, a second side surface cover portion 23 that covers the third wall 13, and a flat plate-shaped cover.
- U-shaped cross section having a first curved cover portion 24 connected to the portion 21 and the first side surface cover portion 22, and a second curved cover portion 25 connected to the flat plate-shaped cover portion 21 and the second side surface cover portion 23. It has a shape.
- the cover body 20 is formed, for example, by sheet metal working of a single plate material made of metal such as steel, aluminum alloy, and stainless steel. With this configuration, the cover body 20 having the above-described shape can be formed easily and at low cost because it can be formed by a simple bending process.
- the plate thickness of the cover body 20 can be set arbitrarily, and is preferably 0.3 mm to 3.5 mm, for example.
- the cover body 20 is not limited to one formed by sheet metal working of a plate material, and the flat plate-shaped cover portion 21, the first side surface cover portion 22, the second side surface cover portion 23, and the first side surface cover portion 23 which are formed separately from each other.
- the curved cover portion 24 and the second curved cover portion 25 may be integrally connected to each other by means such as welding, adhesion, and fastening.
- the cover body 20 is not limited to being made of metal, but may be made of another material such as an injection molded product of a synthetic resin material.
- the flat cover part 21 has a first side 21a and a second side 21b that are parallel to the first side of the first wall 11 of the case body 10. Further, the flat plate-shaped cover portion 21 has a third side 21c and a fourth side 21d that are parallel to the third side 11c of the first wall 11. As described above, the flat plate-shaped cover portion 21 has a rectangular plate-like outer shape having the four sides 21a to 21d. In the present embodiment, the flat plate-shaped cover portion 21 constitutes a front cover portion that covers the opening 10b on the front surface of the case body 10.
- the first curved cover portion 24 is integrally connected to the first side 21a of the flat cover portion 21.
- the first curved cover portion 24 is directed from the first side 21a toward the first wall 11 so that the central axis is an axis parallel to the first side 21a and the central angle is a 90-degree arc. Bent.
- the second curved cover portion 25 is integrally connected to the second side 21b of the flat plate-shaped cover portion 21.
- the second curved cover portion 25 is directed from the second side 21b toward the first wall 11 so that the axis parallel to the second side 21b is the central axis and the central angle is an arc shape of 90 degrees. Bent.
- the first side cover part 22 has a rectangular plate shape parallel to the second wall 12, and is integrally connected to the first curved cover part 24.
- the second side surface cover portion 23 has a rectangular plate shape parallel to the third wall 13, and is integrally connected to the second curved cover portion 25.
- the first side cover 22 and the second side cover 23 are each provided with two mounting holes 26 (only one mounting hole 26 of the first side cover 22 is shown).
- the second wall 12 and the third wall 13 of the case body 10 are on the sides of the first wall 11, the fourth wall 14 and the fifth wall 15, respectively.
- Two screw holes 18 are provided separately for and.
- the cover body 20 is attached to the case body 10 by screwing the screw members 4 inserted into the attachment holes 26 of the cover body 20 into the corresponding screw holes 18 of the case body 10.
- the cover body 20 attached to the case body 10 covers the opening 10b of the case body 10.
- the cover body 20 is configured to have the first curved cover portion 24 and the second curved cover portion 25, so that the outer appearance of the cover body 20 has a rounded corner.
- the electric device case 2 and the power control device 1 including the cover body 20 having the above-described shape are compared with the case where the first curved cover portion 24 and the second curved cover portion 25 are not provided in the cover body 20. Therefore, the design (design) can be made higher.
- the first curved cover portion 24 and the second curved cover portion 25 that are curved in an arc shape may have a radius of 10 mm or more, for example. With such a configuration, the viewer can be sufficiently impressed with the rounded corners due to the provision of the first curved cover portion 24 and the second curved cover portion 25. Therefore, the cover body 20 and the power control device 1 using the cover body 20 can have higher designability (designability).
- the first curved cover portion 24 and the second curved cover portion 25 that are curved in an arc shape may have a radius of 20 to 80 mm, for example. With such a configuration, the viewer can be appropriately impressed with the rounded corners due to the provision of the first curved cover portion 24 and the second curved cover portion 25. Therefore, the cover body 20 and the power control device 1 using the cover body 20 can be made more highly designable (designable).
- the cover body 20 includes the flat plate-shaped cover portion 21, the first side surface cover portion 22, the second side surface cover portion 23, the first curved cover portion 24, and the second curved cover portion 25. Since the cross-section has a U-shaped cross section, the outer appearance of the cover body 20 can be made even better with both corners sandwiching the flat plate-shaped cover portion 21 being rounded. Thus, the cover body 20 having the above-described shape and the power control device 1 using the cover body 20 have higher designability (designability) than when the cover body is not provided with the curved cover portion. You can
- the first side cover part 22 and the second side cover part 23 cover the second wall 12 and the third wall 13 of the case body 10. With such a configuration, it is possible to prevent the second wall 12 and the third wall 13 of the case body 10 that are heated by the heat generated by the electric device 3 from being directly touched by hands.
- a water return portion 16 is provided on the fourth wall 14 of the case body 10.
- the water return portion 16 is along the end surface 14a of the fourth wall 14 that faces away from the first wall 11, and is separated from the fifth wall 15 with respect to the surface 14b of the fourth wall 14 that faces the outside of the case body 10. It is formed in a wall shape protruding in the direction (upward in FIG. 4).
- the water return part 16 is provided integrally with the fourth wall 14, and the surface of the water return part 16 facing the side opposite to the first wall 11 constitutes an end face 14 a of the fourth wall 14.
- the water return section 16 of the case body 10 is provided. It is possible to reduce the amount of water such as rainwater accumulated on the surface 14b flowing toward the end surface 14a in a state of protruding upward from the surface 14b which is the upper surface.
- the surface 14 b of the fourth wall 14 that faces the outside of the case body 10 extends from the flat cover portion 21 side of the cover body 20 (the end surface 14 a side of the fourth wall 14). It inclines so that it may approach the 5th wall 15 gradually toward the side. Thereby, when the power control device 1 is installed in a posture in which the surface 14b of the fourth wall 14 is directed upward and the extending direction of the first wall 11 is parallel to the vertical direction, the surface serving as the upper surface of the case body 10 is formed. Water such as rainwater collected in 14b can be made to flow in a direction away from the end surface 14a of the fourth wall 14 due to the inclination.
- the inclination angle ⁇ of the surface 14b can be set to any angle.
- the inclination angle ⁇ of the surface 14b can be set to an angle of 1 ° to 35 ° with respect to the direction perpendicular to the extending direction of the first wall 11.
- water such as rainwater can be effectively made to flow away from the end surface 14a of the fourth wall 14 without increasing the size of the case body 10 by the inclined surface 14b.
- the case body 10 may be configured such that the heat sink 17 is integrally provided on the surface 14 b of the fourth wall 14 that faces the outside of the case body 10.
- the heat sink 17 has a first heat sink portion 17a that is integrally connected to the water return portion 16.
- the first wall 11 is provided integrally with a partition wall portion 11e projecting in a direction away from the fifth wall 15 from the surface 14b, and the heat sink 17 is spaced from the first heat sink portion 17a. It has the 2nd heat sink part 17b which is arrange
- the heat sink 17 has a partition wall portion 11e and a third heat sink portion 17c integrally connected to the outer surfaces of the first wall 11.
- a plurality of the first heat sink portion 17a, the second heat sink portion 17b, and the third heat sink portion 17c are arranged side by side between the second wall 12 and the third wall 13, respectively. Since the case body 10 is integrally provided with the heat sink 17, the heat generated by the electric device 3 housed in the housing space 10a can be efficiently discharged to the outside.
- the second wall 12 and the third wall 13 are integrally provided with partition wall portions 12a and 13a protruding from the surface 14b in a direction away from the fifth wall 15, respectively.
- the partition walls 12a and 13a are respectively provided with rectangular through holes 12b and 13b penetrating the partition walls 12a and 13a, one edge of which is connected to the surface 14b. These through holes 12b and 13b are connected to the entire range of the surface 14b through the portion of the surface 14b of the fourth wall 14 between the first heat sink portion 17a and the second heat sink portion 17b.
- the second wall 12 and the third wall 13 can be made thinner and lighter while increasing the rigidity, and the heat generated by the electric device 3 housed in the housing space 10a can be generated by the second wall 12 and the third wall 13.
- the wall 13 can effectively dissipate heat.
- first seal member 5 and a second seal member 6 are provided between the case body 10 and the flat cover portion 21 of the cover body 20.
- Each of the first seal member 5 and the second seal member 6 has a waterproof function of sealing the space between the case body 10 and the flat plate-shaped cover portion 21 to the extent that water such as rainwater does not enter.
- the end surface 14a of the fourth wall 14 is provided with a groove-shaped portion 14c which is recessed in a U shape toward the first wall 11 side and extends straight in parallel with the third side 11c.
- the groove-shaped portion 14c is provided in the water return portion 16.
- the bottom surface of the groove-shaped portion 14c facing the side opposite to the first wall 11 constitutes a part of the end surface 14a of the fourth wall 14.
- the first seal member 5 is formed in a rod shape having a rectangular cross section and having a length approximately the same as the first side 21 a of the flat plate-shaped cover portion 21. As shown in FIG. 3, the first seal member 5 is arranged inside the groove-shaped portion 14c in a posture extending in parallel with the first side 21a of the flat plate-shaped cover portion 21. As shown in FIG. 4, in the state where the cover body 20 is attached to the case body 10, the first seal member 5 has a groove-like portion 14c which is a part of the end surface 14a of the fourth wall 14 of the case body 10. It is sandwiched between the bottom surface and the portion of the plate-shaped cover portion 21 of the cover body 20 on the first side 21a side. As a result, the first seal member 5 is elastically deformed in the compression direction at a predetermined rate, and seals between the end surface 14a of the fourth wall 14 and the flat cover portion 21.
- the end surface 15a of the fifth wall 15 is provided with a groove-like portion 15b that is recessed in a U shape toward the first wall 11 and extends straight in parallel to the fourth side 11d.
- the bottom surface of the groove-shaped portion 15b facing the side opposite to the first wall 11 constitutes a part of the end surface 15a of the fifth wall 15.
- the second seal member 6 is formed in the shape of a rod having a rectangular cross section and having a length similar to that of the second side 21 b of the flat cover portion 21. As shown in FIG. 3, the second sealing member 6 is arranged inside the groove-shaped portion 15b in a posture extending in parallel with the second side 21b of the flat plate-shaped cover portion 21. As shown in FIG. 4, in the state where the cover body 20 is attached to the case body 10, the second seal member 6 has a groove-shaped portion 15 b which is a part of the end surface 15 a of the fifth wall 15 of the case body 10. It is sandwiched between the bottom surface and the portion of the flat plate-shaped cover portion 21 of the cover body 20 on the second side 21b side. As a result, the second seal member 6 is elastically deformed in the compression direction at a predetermined rate, and seals between the end surface 15a of the fifth wall 15 and the flat cover portion 21.
- first seal member 5 and second seal member 6 may be formed of an elastic body such as synthetic rubber or elastomer. Further, the first seal member 5 and the second seal member 6 may be formed of rubber sponge which is a foam of ethylene propylene rubber. The first seal member 5 and the second seal member 6 may have configurations or materials other than the above.
- the first seal member 5 and the second seal member 6 are arranged in the groove-shaped portions 14c and 15b provided on the end faces 14a and 15a, respectively.
- the groove is formed on the end faces 14a and 15a.
- the first seal member 5 and the second seal member 6 may be arranged between the end faces 14a, 15a and the flat plate-shaped cover portion 21 without providing the shaped portions 14c, 15b.
- the cross-sectional shapes of the first seal member 5 and the second seal member 6 are not limited to rectangular shapes, and may be other shapes such as circular shapes.
- the case body 10 is provided with a first partition wall 30 and a second partition wall 31.
- the first partition wall 30 and the second partition wall 31 are formed separately from the case body 10 and the cover body 20, respectively, and are attached to the case body 10 by using the screw member 7, and It is fixed at 10.
- the first partition wall 30 is arranged so as to be continuous with the end surface of the second wall 12 of the case body 10 that faces away from the first wall 11.
- the first partition wall 30 is formed in a wall shape inclined with respect to the second wall 12 extending between the flat plate-shaped cover portion 21 and the first side surface cover portion 22 of the cover body 20.
- the second partition wall 31 is arranged so as to be continuous with the end surface of the third wall 13 of the case body 10 that faces away from the first wall 11.
- the second partition wall 31 is formed in a wall shape inclined with respect to the third wall 13 extending between the flat plate-shaped cover portion 21 and the second side surface cover portion 23 of the cover body 20.
- first partition wall 30 and the second partition wall 31 have basically the same shape and the same attachment structure to the case body 10, the following description will be given based on the second partition wall 31.
- the second partition wall 31 includes a flat plate-shaped first surface portion 31 a parallel to the third wall 13, a flat plate-shaped second surface portion 31 b parallel to the first wall 11, and And a third surface portion 31c which is formed in a flat plate shape inclined with respect to both the first surface portion 31a and the second surface portion 31b, and which is provided integrally between the first surface portion 31a and the second surface portion 31b.
- a third surface portion 31c which is formed in a flat plate shape inclined with respect to both the first surface portion 31a and the second surface portion 31b, and which is provided integrally between the first surface portion 31a and the second surface portion 31b.
- Each of the second surface portion 31b and the third surface portion 31c is provided with two (four in total) through holes 31d through which the screw member 7 is inserted.
- Each of the first partition wall 30 and the second partition wall 31 is formed by sheet metal working of one plate material made of metal such as steel, aluminum alloy, and stainless steel. With this configuration, the first partition wall 30 and the second partition wall 31 having the above shapes can be formed easily and at low cost.
- the first partition wall 30 and the second partition wall 31 are not limited to those formed by sheet metal working of a single metal plate material, and other materials such as injection-molded products of synthetic resin materials, manufacturing It may be formed by a method.
- the third surface portion 31c of the second partition wall 31 has a length corresponding to the distance between the fourth wall 14 and the fifth wall 15, and is a trapezoidal protruding portion of the fourth wall 14 on one end side in the longitudinal direction. It faces the inclined surface between the end surface 14 a and the third wall 13, and faces the inclined surface between the end surface 15 a of the trapezoidal protruding portion of the fifth wall 15 and the third wall 13 on the other end side. ..
- the second surface portion 31b faces a part of the end surface 14a of the fourth wall 14 on one end side and a part of the end surface 15a of the fifth wall 15 on the other end side. Further, the first surface portion 31a faces the end portion of the surface of the third wall 13 facing the side opposite to the second wall 12.
- the opening 10b of the case body 10 has an end surface 14a of the fourth wall 14, an end surface 15a of the fifth wall 15, It is partitioned by the first partition wall 30 and the second partition wall 31.
- the second surface 30b of the first partition wall 30 is displaced from the second wall 12 toward the third wall 13, and the second surface 31b of the second partition wall 31 is located closer to the second wall surface than the third wall 13.
- the width in the direction from the wall 12 to the third wall 13 is narrower than the distance between the second wall 12 and the third wall 13.
- the first partition wall 30 and the second partition wall 31 are formed separately from the case body 10 and the cover body 20 and attached to the case body 10. Therefore, when disposing the electric device 3 through the opening 10b in the accommodation space 10a inside the case body 10, the first partition wall 30 and the second partition wall 31 are removed from the case body 10 to open the opening 10b into the second wall. It can be enlarged to a size having a distance between 12 and the third wall 13. Thereby, the electric device 3 can be easily arranged in the accommodation space 10a of the case body 10.
- the fourth sub-wall 14 is provided with a first sub-seal member 32 extending over the end surface 14a of the trapezoidal protruding portion and the inclined surface.
- the first sub-seal member 32 is sandwiched between the second surface portion 31b of the second partition wall 31 and the end surface 14a of the fourth wall 14, and the third surface portion 31c of the second partition wall 31 and the inclined surface of the protruding portion. It has a waterproof function of being sandwiched between and and sealing between them so that water does not enter.
- a second sub-seal member 33 is arranged on the fifth wall 15 and extends over the end surface 15a of the trapezoidal protruding portion and the inclined surface.
- the second sub-seal member 33 is sandwiched between the second surface portion 31b of the second partition wall 31 and the end surface 15a of the fifth wall 15, and the third surface portion 31c of the second partition wall 31 and the inclined surface of the protruding portion. It has a waterproof function of being sandwiched between and and sealing between them so that water does not enter.
- a third sub-seal member 34 is arranged on the end surface of the third wall 13 that faces away from the first wall 11. As shown in FIG. 8, the third sub-seal member 34 is sandwiched between the third surface portion 31c of the second partition wall 31 and the end surface of the third wall 13 that faces away from the first wall 11. , Has a waterproof function of sealing between them to the extent that water does not enter.
- the space between the second partition wall 31 and the case body 10 is sealed by the first sub-seal member 32, the second sub-seal member 33, and the third sub-seal member 34. Therefore, intrusion of water such as rainwater into the inside of the case body 10 (the accommodation space 10a) from between the second partition wall 31 and the case body 10 is prevented.
- a partition wall seal member 35 is provided between the second surface portion 31 b of the second partition wall 31 and the flat plate-shaped cover portion 21 of the cover body 20.
- the partition wall sealing member 35 is formed in a rod shape extending along the longitudinal direction of the second surface portion 31 b of the second partition wall 31.
- One end of the partition wall seal member 35 in the longitudinal direction is continuous with the one end of the first seal member 5 being abutted, and the other end of the partition wall seal member 35 in the longitudinal direction is projected to one end of the second seal member 6. It is in a line with being applied.
- the partition wall seal member 35 is sandwiched between the second surface portion 31b and the flat plate-shaped cover portion 21 of the cover body 20 and has a waterproof function of sealing the gap between them so that water does not enter. ..
- the first seal member 5, the second seal member 6, and the second seal member 6 are provided so as to surround the opening 10b.
- Two partition wall sealing members 35 are arranged. Therefore, infiltration of water such as rainwater from the opening of the case body 10 can be further reduced.
- a communication portion 60 is provided inside the first curved cover portion 24 of the cover body 20.
- the communication portion 60 is provided inside the second curved cover portion 25.
- the communication portion 60 provided inside the first curved cover portion 24 and the communication portion 60 provided inside the second curved cover portion 25 have basically the same configuration except that they are bilaterally symmetrical, and therefore Now, the description will be given based on the communication portion 60 provided inside the second curved cover portion 25.
- the communication part 60 is configured as a space extending inside the second curved cover part 25 in a direction along the second side 21 b of the flat plate-shaped cover part 21.
- one end of the communication portion 60 on the side of the fourth wall 14 is electrically connected to the gap 61 between the inner peripheral surface of the second curved cover portion 25 and the fourth wall 14 of the case body 10. It communicates with the outside of the device case 2.
- the other end of the communication portion 60 on the side of the fifth wall 15 has a gap between the inner peripheral surface of the second curved cover portion 25 and the fifth wall 15 of the case body 10.
- the communication portion 60 is configured as a space that penetrates the electric device case 2 in the portion of the second curved cover portion 25 from the side of the fourth wall 14 toward the side of the fifth wall 15.
- a flange portion 14d whose outer peripheral surface is curved in an arc shape is integrally provided between the end surface 14a of the fourth wall 14 and the third wall 13, and the flange portion 14d is formed.
- a gap 61 is provided between the outer peripheral surface of the second curved cover portion 25 and the inner peripheral surface of the second curved cover portion 25.
- the radius of the arcuate outer peripheral surface of the collar portion 14d is smaller than the radius of the second curved cover portion 25.
- the gap 61 has a configuration in which the distance between the outer peripheral surface of the flange portion 14d and the inner peripheral surface of the second curved cover portion 25 gradually increases from the end surface 14a side.
- a flange portion 15c having an outer peripheral surface curved in an arc shape is integrally provided between the end surface 15a of the fifth wall 15 and the third wall 13, and the flange portion 15c is formed.
- a gap 62 is provided between the outer peripheral surface of the second curved cover portion 25 and the inner peripheral surface of the second curved cover portion 25.
- the radius of the arcuate outer peripheral surface of the collar portion 15c is smaller than the radius of the second curved cover portion 25.
- the gap 62 is configured such that the distance between the outer peripheral surface of the collar portion 15c and the inner peripheral surface of the second curved cover portion 25 gradually increases from the end surface 15a side.
- the communication part 60 can function as a drainage channel that extends in the vertical direction when the power control device 1 is installed with the surface 14b of the fourth wall 14 of the case body 10 facing upward.
- the power control device 1 of the present embodiment having the above configuration is installed outdoors with the surface 14b of the fourth wall 14 of the case body 10 facing upward, as shown in FIG. At this time, the power control device 1 is arranged in a posture in which the first wall 11 of the case body 10 faces the outer wall of the house.
- the wiring extending from the electric device 3 toward the electric power system and the solar cell inside the house is provided to the outside of the electric device case 2 from the hole provided in the fifth wall 15 and the lower cover 50 facing the lower side of the case body 10. Be withdrawn.
- the electric device case 2 includes the first sealing member between the end surface 14 a of the fourth wall 14 of the case body 10 and the flat plate-shaped cover portion 21 of the cover body 20. 5 is provided, water such as rainwater enters the accommodation space 10a inside the case body 10 from between the end surface 14a of the fourth wall 14 of the case body 10 and the flat plate-shaped cover portion 21 of the cover body 20. Can be prevented.
- the power control device 1 is arranged with the surface 14b of the fourth wall 14 of the case body 10 facing upward, water such as rainwater may collect on the surface 14b.
- the side 21a of the flat plate-shaped cover portion 21 is provided inside the first curved cover portion 24 and the second curved cover portion 25 that are continuous with the flat plate-shaped cover portion 21. , 21b, and a communication portion 60 that communicates with the outside between the first curved cover portion 24 and the second curved cover portion 25 and the case body 10 is provided.
- the water accumulated between the end surface 14 a and the flat plate-shaped cover portion 21 is separated between the first curved cover portion 24 and the second curved cover portion 25 and the collar portion 14 d of the fourth wall 14 of the case body 10.
- the fourth wall 14 is provided with the flange portion 14d having an arcuate outer peripheral surface, so that the first curved cover portion 24 and the second curved cover portion 25 are connected to the fourth wall 14.
- the gap 61 is formed as an elongated slit along the inner peripheral surfaces of the first curved cover portion 24 and the second curved cover portion 25.
- the first curved cover portion 24 and the second curved cover portion 25 and the case body 10 are provided. It is conceivable that a waterproof seal is sandwiched between the fourth wall 14 and the flange portion 14d to seal the gap therebetween.
- each part of the waterproof seal is compressed in the direction from the flat plate-shaped cover portion 21 toward the end surface 14a, and the first curved cover portion 24 and the first curved cover portion 24 are respectively provided. It is not compressed in the direction perpendicular to the inner peripheral surface of the second curved cover portion 25. As a result, the compressibility of each part of the waterproof seal becomes uneven, and wrinkles may occur in the part of the waterproof seal where compression is insufficient, resulting in insufficient waterproofness.
- the waterproof is provided between the first curved cover portion 24 and the second curved cover portion 25 and the flange portion 14d of the fourth wall 14 of the case body 10. Since no water is accumulated between the end surface 14a and the flat plate-shaped cover portion 21 without the provision of a seal, the water resistance of the electric equipment case 2 can be improved because the water is positively discharged to the outside through the communication portion 60. it can.
- the cover body 20 with the first curved cover portion 24 and the second curved cover portion 25 while ensuring the waterproofing functionality of the electric device case 2 and the power control device 1, the The designability (designability) of the device case 2 and the power control device 1 can be improved.
- the first seal member 5 and the second seal member 6 are provided between the end surfaces 14 a and 15 a of the case body 10 and the flat plate-shaped cover portion 21 of the cover body 20.
- the partition wall sealing member 35 is also provided between the first partition wall 30 and the second partition wall 31 and the flat plate-shaped cover portion 21.
- the first sub-seal member 32, the second sub-seal member 33, and the third sub-seal member 33 are provided between the first partition wall 30 and the second partition wall 31 and the case body 10.
- the sub-sealing member 34 is provided.
- Each of the first sub-seal member 32, the second sub-seal member 33, and the third sub-seal member 34 has a third surface portion 31c of the second partition wall and a surface of the case body 10 parallel to the third surface portion 31c. It is sandwiched between and compressed. The same applies to the side of the first partition 30.
- the first sub-seal member 32, the second sub-seal member 33, and the third sub-seal member 34 are respectively compressed in one direction in which the whole is inclined with respect to the direction perpendicular to the first wall 11. It Therefore, the first sub-seal member 32, the second sub-seal member 33, and the third sub-seal member 34 are entirely compressed at a constant compression rate, so that the first partition wall 30 and the second sub-seal member 30 are compressed.
- the space between the partition wall 31 and the case body 10 can be made more waterproof. Therefore, infiltration of water from between the first partition wall 30, the second partition wall 31, and the case body 10 can be further reduced.
- the case body 10 is provided with the first partition wall 30 and the second partition wall 31, so that the communication portion 60 is formed by the first partition wall 30 and the second partition wall 31. Can be isolated from the inside (accommodation space 10a). This makes it difficult for water such as rainwater flowing through the communication portion 60 to enter the inside of the case body 10, and thus the electrical equipment case 2 and the power control device 1 can be made more waterproof.
- the water return portion 16 is provided on the fourth wall 14 of the case body 10.
- the water return section 16 is a surface serving as the upper surface of the case body 10. 14b is projected upward. Therefore, water such as rainwater collected on the surface 14b is blocked by the water return portion 16 and is prevented from flowing toward the end surface 14a.
- the fourth wall 14 is provided with the water return portion 16 that protrudes in the direction away from the fifth wall 15 along the end surface 14a, so that the surface 14b of the fourth wall 14 is formed.
- the power control device 1 When the power control device 1 is installed in a posture in which the first wall 11 extends upward and the extending direction of the first wall 11 is parallel to the vertical direction, water such as rainwater accumulated on the surface 14b faces toward the end surface 14a. Flow can be reduced. This reduces water such as rainwater accumulated on the surface 14b from reaching between the end surface 14a of the fourth wall 14 of the case body 10 and the flat plate-shaped cover portion 21 of the cover body 20 for electrical equipment. The waterproofness of the case 2 and the power control device 1 can be further enhanced.
- the surface 14b of the fourth wall 14 that faces the outside of the case body 10 is located on the side of the flat plate-shaped cover portion 21 of the cover body 20 (on the side of the end surface 14a of the fourth wall 14). Is inclined so as to gradually approach the fifth wall 15 toward the first wall 11 side.
- Water such as rainwater accumulated on the surface 14b is caused to flow in a direction away from the end surface 14a of the fourth wall 14 due to the inclination, and the water is discharged to the outside from the through holes 12b, 13b before being accumulated to reach the end surface 14a.
- You can The water discharged from the through holes 12b and 13b is discharged between the second wall 12 of the case body 10 and the first side surface cover portion 22 of the cover body 20 or the third wall 13 of the case body 10 and the second side wall of the cover body 20. It flows downward through the space between the side cover portion 23 and is discharged to the outside from the case body 10 or the lower end of the cover body 20.
- it is possible to further reduce the amount of water accumulated on the surface 14b reaching the end surface 14a, and to further enhance the waterproofness of the electric device case 2 and the power control device 1.
- the upper cover 40 is made of synthetic resin, and is attached to the case body 10 so as to cover the end face 14a of the fourth wall 14 facing the outside of the case body 10 from above, as shown in FIG.
- the upper cover 40 is provided with a plurality of slit-shaped discharge holes 41 for discharging the heat radiated through the heat sink 17 to the outside. With the configuration in which the upper cover 40 is attached, it is possible to prevent the heat sink 17 or the surface 14b of the case body 10 heated by the heat from the electric device 3 from being directly touched by the hand.
- the lower cover 50 is made of synthetic resin, and is attached to the case body 10 so as to cover the lower side of the fifth wall 15, as shown in FIG.
- the lower cover 50 can discharge the water discharged from the gap 62 on the lower side of the communication portion 60 to the outside through a discharge hole provided at a predetermined position. With the configuration in which the lower cover 50 is attached, it is possible to prevent the fifth surface 15 of the case body 10 heated by the heat from the electric device 3 from being directly touched by the hand.
- the cover body 20 is configured to include the first curved cover portion 24 and the second curved cover portion 25, but may be configured to include only one curved cover portion. Good. In this case, only one partition wall corresponding to the curved cover portion may be provided in the case body 10.
- the cover body 20 is configured to include the first side surface cover portion 22 and the second side surface cover portion 23, but includes the first side surface cover portion 22 and the second side surface cover portion 23. There may be no configuration.
- the first partition 30 and the second partition 31 are provided in the electric device case 2, but the electric device case 2 includes the first partition 30 and the second partition 31. It can also be configured not to.
- the communication part 60 may be made to function as a ventilation passage by a ventilation fan arranged in the housing space 10a of the case body 10.
- first partition wall 30 and the second partition wall 31 are formed separately from the case body 10 and the cover body 20 and attached to the case body 10.
- the configuration is not limited to this, and may be integrally provided in the case body 10.
- first partition wall 30 and the second partition wall 31 may be formed separately from the case body 10 and the cover body 20 and attached to the cover body 20.
- first partition wall 30 and the second partition wall 31 may be integrated with the cover body 20.
- the case body 10 is provided with the water return portion 16, but the water return portion 16 may be omitted.
- the surface 14b of the fourth wall 14 of the case body 10 is inclined so as to gradually approach the fifth wall 15 from the side of the flat plate-shaped cover portion 21 toward the side of the first wall 11.
- the present invention is not limited to this, and a non-inclined structure may be adopted.
- the first seal member 5 is provided between the end surface 14a of the fourth wall 14 of the case body 10 and the flat plate-shaped cover portion 21 of the cover body 20, and the fifth wall of the case body 10 is provided.
- the second seal member 6 is provided between the end surface 15a of the cover 15 and the flat plate-shaped cover portion 21 of the cover body 20, the fourth wall 14 of the case main body 10 faces upward in the power control device 1.
- the first seal member 5 is provided only between the end surface 14a of the fourth wall 14 of the case body 10 and the flat plate-shaped cover portion 21 of the cover body 20, and the fifth wall of the case body 10 is provided.
- the second seal member 6 may not be provided between the end surface 15 a of the plate 15 and the flat plate-shaped cover portion 21 of the cover body 20.
- the power control device 1 is installed with the surface 14b of the fourth wall 14 facing upward and the extending direction of the first wall 11 being parallel to the vertical direction.
- the posture can be variously changed when the power control device 1 is installed.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Inverter Devices (AREA)
Abstract
Description
2 電気機器用ケース
3 電気機器
4 ネジ部材
5 第1のシール部材
6 第2のシール部材
7 ネジ部材
10 ケース本体
10a 収容空間
10b 開口
11 第1壁
11a 第1の辺
11b 第2の辺
11c 第3の辺
11d 第4の辺
11e 区画壁部
12 第2壁
12a 区画壁部
12b 貫通孔
13 第3壁
13a 区画壁部
13b 貫通孔
13c 縦リブ
13d 横リブ
14 第4壁
14a 端面
14b 面
14c 溝状部分
14d 鍔部
15 第5壁
15a 端面
15b 溝状部分
15c 鍔部
16 水返し部
17 ヒートシンク
17a 第1ヒートシンク部
17b 第2ヒートシンク部
17c 第3ヒートシンク部
18 ネジ穴
20 カバー体
21 平板状カバー部
21a 第1の辺
21b 第2の辺
21c 第3の辺
21d 第4の辺
22 第1側面カバー部
23 第2側面カバー部
24 第1の湾曲カバー部
25 第2の湾曲カバー部
26 取付け孔
30 第1の隔壁
30b 第2面部
31 第2の隔壁
31a 第1面部
31b 第2面部
31c 第3面部
31d 貫通孔
32 第1の副シール部材
33 第2の副シール部材
34 第3の副シール部材
35 隔壁用シール部材
40 上カバー
50 下カバー
60 連通部
61 隙間
62 隙間
α 傾斜角度
Claims (10)
- 電気機器を収容する電気機器用ケースであって、
開口を有するケース本体と、
矩形の平板状カバー部と前記平板状カバー部の一辺に連なる湾曲カバー部とを備え、前記ケース本体に取り付けられて前記開口を覆うカバー体と、
前記ケース本体と前記平板状カバー部との間に設けられ、前記ケース本体と前記平板状カバー部との間を封止するシール部材と、
前記湾曲カバー部の内側に前記平板状カバー部の前記一辺に沿う方向に延びて設けられ、前記湾曲カバー部と前記ケース本体との間において外部に連通する連通部と、を有することを特徴とする電気機器用ケース。 - 前記ケース本体が、
矩形の第1壁と、
前記第1壁の第1の辺に連なる第2壁と、
前記第2壁に対向するとともに前記第1壁の第2の辺に連なる第3壁と、
前記第1壁の第3の辺、前記第2壁及び前記第3壁に連なる第4壁と、
前記第4壁に対向するとともに前記第1壁の第4の辺、前記第2壁及び前記第3壁に連なる第5壁と、を有する箱型であり、
前記シール部材が、前記第4壁の前記第1壁とは反対側を向く端面と、前記平板状カバー部との間に前記一辺に平行に延びて設けられ、
前記湾曲カバー部が、前記平板状カバー部の前記一辺から前記第1壁の側に向けて曲がっている、請求項1に記載の電気機器用ケース。 - 前記カバー体が、
前記平板状カバー部と、
前記第2壁を覆う第1側面カバー部と、
前記第3壁を覆う第2側面カバー部と、
前記平板状カバー部と前記第1側面カバー部とに連なる第1の前記湾曲カバー部と、
前記平板状カバー部と前記第2側面カバー部とに連なる第2の前記湾曲カバー部と、を有する断面U字形状である、請求項2に記載の電気機器用ケース。 - 前記第4壁に、前記第4壁の前記第1壁とは反対側を向く端面に沿うとともに前記第5壁から離れる方向に突出する水返し部が設けられている、請求項2または3に記載の電気機器用ケース。
- 前記第4壁の前記ケース本体の外側を向く面が、前記平板状カバー部の側から前記第1壁の側に向けて徐々に前記第5壁に接近するように傾斜している、請求項2~4の何れか1項に記載の電気機器用ケース。
- 前記連通部を前記ケース本体の内部に対して隔離する隔壁を有する、請求項1~5の何れか1項に記載の電気機器用ケース。
- 前記隔壁が、前記ケース本体及び前記カバー体とは別体に形成され、前記ケース本体に取り付けられている、請求項6に記載の電気機器用ケース。
- 前記隔壁と前記平板状カバー部との間に設けられ、前記隔壁と前記平板状カバー部との間を封止する隔壁用シール部材を有する、請求項6または7に記載の電気機器用ケース。
- 前記連通部が上下方向に延びる排水路である、請求項1~8の何れか1項に記載の電気機器用ケース。
- 請求項1~9の何れか1項に記載の電気機器用ケースと、前記電気機器用ケースに収容された電気機器とを備えることを特徴とする電力制御装置。
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JP2020553701A JP7057838B2 (ja) | 2018-10-29 | 2019-10-02 | 電気機器用ケース及び電力制御装置 |
EP19879685.6A EP3876686B1 (en) | 2018-10-29 | 2019-10-02 | Case for electrical devices and electric power control device |
CN201980064405.2A CN112889356B (zh) | 2018-10-29 | 2019-10-02 | 电气设备用壳体以及电力控制装置 |
US17/281,244 US12126270B2 (en) | 2018-10-29 | 2019-10-02 | Casing for electrical apparatus and power control apparatus |
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US12095415B2 (en) * | 2021-03-29 | 2024-09-17 | GAF Energy LLC | Electrical components for photovoltaic systems |
USD1033372S1 (en) * | 2022-05-30 | 2024-07-02 | Beijing Tusen Zhitu Technology Co., Ltd. | Electronic controller |
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EP3876686B1 (en) | 2025-05-28 |
JPWO2020090337A1 (ja) | 2021-09-16 |
US20220224240A1 (en) | 2022-07-14 |
CN112889356B (zh) | 2023-04-28 |
EP3876686A1 (en) | 2021-09-08 |
JP7057838B2 (ja) | 2022-04-20 |
CN112889356A (zh) | 2021-06-01 |
EP3876686A4 (en) | 2022-08-10 |
US12126270B2 (en) | 2024-10-22 |
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