WO2022176401A1 - Condensateurs, module de condensateur et procédé de fabrication de module de condensateur - Google Patents

Condensateurs, module de condensateur et procédé de fabrication de module de condensateur Download PDF

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Publication number
WO2022176401A1
WO2022176401A1 PCT/JP2021/048518 JP2021048518W WO2022176401A1 WO 2022176401 A1 WO2022176401 A1 WO 2022176401A1 JP 2021048518 W JP2021048518 W JP 2021048518W WO 2022176401 A1 WO2022176401 A1 WO 2022176401A1
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WIPO (PCT)
Prior art keywords
capacitor
holding member
connecting portion
capacitors
capacitor element
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PCT/JP2021/048518
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English (en)
Japanese (ja)
Inventor
宏樹 竹岡
康行 平垣
Original Assignee
パナソニックＩｐマネジメント株式会社
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2023500595A priority Critical patent/JPWO2022176401A1/ja
Priority to CN202180093067.2A priority patent/CN116830223A/zh
Publication of WO2022176401A1 publication Critical patent/WO2022176401A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02—Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/32—Wound capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/38—Multiple capacitors, i.e. structural combinations of fixed capacitors

Definitions

  • the present invention relates to a capacitor, a capacitor module, and a method for manufacturing a capacitor module.
  • a case mold type capacitor in which a bus bar is connected to each electrode provided on both end surfaces of a capacitor element, the capacitor element to which the bus bar is connected is housed in a case, and the case is filled with filling resin.
  • Moisture-proofing of the capacitor element is achieved by covering it with the case and the filling resin.
  • the number of capacitor elements, the shape of the busbar, the shape of the case, etc. are designed and manufactured according to the required specifications for each product.
  • a capacitor element unit is created by arranging a number of capacitor elements determined by design and connecting bus bars having a shape corresponding to the number to all the capacitor elements. After that, the capacitor element unit is accommodated in a case having a shape, size, etc. corresponding to the capacitor element unit, and a filling resin in a liquid state is injected into the case. After that, the filling resin is cured to cover the capacitor element unit with the filling resin and the case.
  • an object of the present invention is to provide a capacitor, a capacitor module, and a method of manufacturing a capacitor module that can reduce switching loss in the manufacturing process and improve productivity.
  • a first aspect of the present invention relates to a capacitor.
  • a capacitor according to this aspect includes a capacitor element having electrodes, a bus bar connected to the electrodes, a holding member holding the bus bar, the entire capacitor element, and a part of the bus bar and the holding member. and an exterior body for covering.
  • the holding member is provided with a connecting portion exposed from the exterior body and connected to the holding member of the other capacitor.
  • a second aspect of the present invention relates to a capacitor module.
  • a capacitor module according to this aspect is configured by connecting a plurality of capacitors according to the first aspect.
  • a third aspect of the present invention relates to a method for manufacturing a capacitor module.
  • the capacitor element unit formed by connecting the bus bar held by the holding member having the connecting portion to the electrode of the capacitor element is accommodated in the mold member, and the liquid phase resin is The entire capacitor element is immersed in the resin, the resin is injected into the mold member so that the connecting portion is exposed, the injected resin is cured, and the cured resin serves as the exterior body of the capacitor.
  • a capacitor covering the element unit with the connecting portion exposed is prepared, and a plurality of the capacitors are connected by the connecting portion.
  • switching losses in the manufacturing process can be reduced, and productivity can be improved.
  • FIG. 1 is a perspective view of a capacitor module according to an embodiment
  • FIG. 2(a) and 2(b) are a perspective view and an exploded perspective view, respectively, of a first capacitor element unit constituting a first capacitor according to the embodiment.
  • FIG. 3(a) is a plan view of a first holding member holding a pair of busbars according to the embodiment, and FIGS. They are -A' sectional drawing and BB' sectional drawing.
  • FIGS. 4A and 4B are a perspective view and an exploded perspective view, respectively, of a second capacitor element unit forming a second capacitor according to the embodiment.
  • FIG. 5 is a diagram for explaining the method of manufacturing the capacitor module according to the embodiment.
  • FIGS. 6A and 6B are diagrams for explaining the method of manufacturing the capacitor module according to the embodiment.
  • FIG. 7 is a perspective view of a capacitor module according to a modification.
  • FIG. 8 is a diagram showing a configuration for holding a pair of bus bars on a first holding member according to a modification.
  • FIGS. 9A and 9B are plan views of a first holding member and a second holding member, respectively, in which busbars are held, according to a modification.
  • FIGS. 10(a) and 10(b) are plan views of capacitor modules according to modifications.
  • FIG. 11 is a diagram for explaining configurations of a first connecting portion and a second connecting portion according to a modification.
  • FIG. 12(a) is a plan view of a fixing portion provided with a connecting portion according to a modification
  • FIG. 12(b) is a plan view of a second holding member holding a busbar according to a modification. is.
  • FIG. 1 is a perspective view of the capacitor module 1.
  • FIG. 2(a) and 2(b) are a perspective view and an exploded perspective view, respectively, of a first capacitor element unit C1 that constitutes the first capacitor 10A.
  • FIG. 3(a) is a plan view of the first holding member 300A holding a pair of busbars 200
  • FIGS. 3(b) and 3(b) are AA' cross sections of FIG. 3(a), respectively. 1 and a BB' sectional view.
  • 4A and 4B are a perspective view and an exploded perspective view, respectively, of a second capacitor element unit C2 that constitutes the second capacitor 10B.
  • capacitor module 1 includes a plurality of, for example, two first capacitors 10A and two second capacitors 10B.
  • a plurality of first capacitors 10A are connected in the horizontal direction, and the second capacitors 10B are connected to the first capacitors 10A at the left and right ends.
  • the two second capacitors 10B on the left and right are oriented in opposite directions.
  • the number of first capacitors 10A is determined according to required specifications such as capacitance. For this reason, depending on the required specifications, the capacitor module 1 may be configured to have only two second capacitors 10B without the first capacitor 10A.
  • the first capacitor 10A includes a capacitor element 100, a pair of busbars 200, a first holding member 300A, and an exterior body 400.
  • a first capacitor element unit C1 is configured by capacitor element 100, a pair of bus bars 200, and first holding member 300A.
  • Capacitor element 100 is formed by stacking two metallized films in which aluminum is vapor-deposited on a dielectric film, winding or laminating the stacked metallized films, and pressing them into a flat shape.
  • Capacitor element 100 is formed in a shape similar to a flattened cylinder, and has a pair of end surfaces 101 and a peripheral surface 102 .
  • Electrodes 110 are formed on both end surfaces 101 of the capacitor element 100 by spraying a metal such as zinc.
  • capacitor element 100 of the present embodiment is formed of a metallized film in which aluminum is vapor-deposited on a dielectric film. It may be formed by a film. Alternatively, capacitor element 100 may be formed of a metallized film obtained by vapor-depositing a plurality of these metals, or may be formed of a metallized film obtained by vapor-depositing an alloy of these metals. .
  • the pair of bus bars 200 are formed into a predetermined shape by appropriately cutting and bending a conductive material plate, for example, a copper plate.
  • Each bus bar 200 has an electrode terminal portion 210 having a rectangular plate shape extending in the horizontal direction, a connection terminal portion 220 having a rectangular plate shape extending in the vertical direction, and a rectangular plate shape extending in the front-rear direction. It is composed of a relay portion 230 that connects the terminal portion 210 and the connection terminal portion 220 .
  • Each bus bar 200 is a terminal member electrically connected to each electrode 110, and its electrode terminal portion 210 is joined to each electrode 110 of the capacitor element 100 by a joining method such as soldering.
  • the first holding member 300A is made of a thermoplastic resin such as polyphenylene sulfide (PPS), and includes a body portion 310, a first connecting portion 320, and a second connecting portion 330.
  • a thermoplastic resin such as polyphenylene sulfide (PPS)
  • PPS polyphenylene sulfide
  • the body part 310 has a rectangular plate shape.
  • a rectangular opening 311 is formed at four corners of the main body 310 .
  • the four openings 311 have tapered inner wall surfaces on the front, rear, right, and left sides, and the diameters of the openings 311 are tapered from the lower surface side to the upper surface side of the main body 310, that is, upward (condenser). direction away from the element 100).
  • the first connecting portion 320 and the second connecting portion 330 are formed to rise from the left and right ends, which are the opposite ends of the body portion 310, respectively.
  • the first connecting portion 320 has a concave portion 321 on the front side of the upper end, and an engaging piece 322 projecting leftward is formed. It is formed.
  • the second connecting portion 330 has a concave portion 331 on the rear side of the upper end, and an engaging piece 332 projecting to the right is formed. It is formed.
  • the engagement piece 322 and the engagement projection 323 of the first connection portion 320 and the engagement piece 332 and the engagement projection 333 of the second connection portion 330 have the same configuration, and the two recesses 321 and 331 It has a shape corresponding to the engaging protrusions 323 and 333 .
  • the first holding member 300 ⁇ /b>A is arranged above and close to the capacitor element 100 so as to face the peripheral surface 102 of the capacitor element 100 and holds the pair of bus bars 200 . That is, as shown in FIG. 3(c), the pair of bus bars 200 are insert-molded into the first holding member 300A so that the root portions of the connection terminal portions 220 are embedded in the main body portion 310, and are vertically, forwardly, horizontally and horizontally held immovable in any direction. A connection terminal portion 220 protrudes upward from the body portion 310 . By holding the pair of bus bars 200 on the first holding member 300A in this manner, good dimensional accuracy between the two connection terminal portions 220 is ensured.
  • the exterior body 400 is made of thermosetting resin such as epoxy resin, and has a rectangular parallelepiped shape.
  • the exterior body 400 covers the entire capacitor element 100 and a portion of the pair of bus bars 200 and the first holding member 300A.
  • Connection terminal portions 220 of a pair of bus bars 200 and first connecting portion 320 and second connecting portion 330 of first holding member 300A are exposed to the outside from upper surface 400a, which is one surface of exterior body 400. As shown in FIG.
  • the second capacitor 10B includes a capacitor element 100, a pair of busbars 200, and an exterior body 400, like the first capacitor 10A. Furthermore, the second capacitor 10B includes a second holding member 300B instead of the first holding member 300A.
  • a second capacitor element unit C2 is configured by capacitor element 100, a pair of bus bars 200, and a second holding member 300B.
  • the second holding member 300B is arranged above and close to the capacitor element 100 so as to face the peripheral surface 102 of the capacitor element 100, and holds the pair of busbars 200.
  • the second holding member 300B includes a body portion 310 and a first connecting portion 320, like the first holding member 300A. Further, the second holding member 300B includes a fixing portion 340 instead of the second connecting portion 330. As shown in FIG.
  • the fixed part 340 has a semi-oval plate shape.
  • a circular hole 341 is formed in the fixed part 340 .
  • a metal collar 342 is embedded in the hole 341 for reinforcement.
  • connection terminal portions 220 of the pair of busbars 200 and the first connecting portion 320 of the second holding member 300B are exposed to the outside from the upper surface 400a of the exterior body 400, and the second holding member 300B is fixed.
  • the portion 340 is exposed from the side surface 400 b of the exterior body 400 .
  • the first connecting portion 320 has the same configuration as the second connecting portion 330, and the second connecting portion 330 function as
  • first capacitors 10A By connecting the first connecting portion 320 of one first capacitor 10A and the second connecting portion 330 of the other first capacitor 10A, a plurality of (two in FIG. 1) first capacitors 10A are
  • the connection terminal portions 220 of the pair of bus bars 200 are connected in the left-right direction, that is, in the direction parallel to the upper surface 400a of the exterior body 400 where the connection terminal portions 220 are exposed.
  • the engaging projection 323 of the first connecting portion 320 is fitted into the concave portion 331 of the engaging piece 332 of the second connecting portion 330 so that the engaging projection 323 and the engaging piece 332 are engaged with each other.
  • the engaging projection 333 of the second connecting portion 330 is fitted into the recess 321 of the engaging piece 322 of the first connecting portion 320 to engage the engaging projection 333 and the engaging piece 322 .
  • the vertical, front-rear, and left-right positions between the first capacitors 10A are determined.
  • the first capacitor 10A and the second capacitor 10B are arranged in the horizontal direction. concatenated. Further, by connecting the first connecting portion 320 of the first capacitor 10A on the left end and the first connecting portion 320 (functioning as the second connecting portion 330) of the second capacitor 10B on the left side, the first capacitor 10A and the A second capacitor 10B is connected in the horizontal direction. The vertical, front-rear, and horizontal positions between the first capacitor 10A and the second capacitor 10B are determined.
  • the plurality of first capacitors 10A and the two second capacitors 10B are fixed by an adhesive between the first connecting portion 320 and the second connecting portion 330, and are connected together to form an exterior body.
  • a banding band 500 is wrapped around the side surface (peripheral surface) of 400 to fix.
  • the method of fixing the first capacitor 10A and the second capacitor 10B is not limited to the above method.
  • the binding band 500 is not used, and the first connecting portion 320 and the second connecting portion 330 are fixed with an adhesive, and the side surfaces of the two adjacent exterior bodies 400 are fixed with an adhesive.
  • a method of fixing only by the binding band 500 without using an adhesive may be adopted.
  • an adhesive tape may be wound around the side surface (peripheral surface) of exterior body 400 which is a lump.
  • FIG. 5 is a flow chart showing the flow of the capacitor module manufacturing process
  • FIGS. 6A and 6B are diagrams for explaining the flow of the exterior body forming process.
  • the manufacturing process of the capacitor module 1 includes a capacitor manufacturing process and a module assembling process.
  • the first capacitor 10A and the second capacitor 10B are created.
  • capacitor module 1 is assembled by connecting a plurality of first capacitors 10A and second capacitors 10B produced in the capacitor manufacturing process.
  • the capacitor manufacturing process consists of an element unit forming process and an exterior body forming process.
  • an element unit forming step is performed.
  • a pair of bus bars 200 held by first holding member 300A are connected to both electrodes 110 of capacitor element 100 to form first capacitor element unit C1.
  • a pair of bus bars 200 held by second holding member 300B are connected to both electrodes 110 of capacitor element 100 to form second capacitor element unit C2.
  • a casting container 2A for the first capacitor 10A and a casting container 2B for the second capacitor 10B are used as mold members in the exterior body forming step.
  • the casting containers 2A and 2B are made of metal and have a substantially rectangular parallelepiped box shape with an open top corresponding to the shape of the exterior body 400 .
  • a concave portion 21 corresponding to the fixing portion 340 of the second holding member 300B is formed in the upper end portion of the casting container 2B.
  • the first capacitor element unit C1 is accommodated in the casting container 2A.
  • the first connecting portion 320 and the second connecting portion 330 are fixed by a fixing jig (not shown), and the first capacitor element unit C1 is positioned with respect to the casting container 2A.
  • a liquid-phase thermosetting resin such as an epoxy resin is poured into the casting container 2A.
  • Capacitor element 100, electrode terminal portions 210 and relay portions 230 of a pair of busbars 200, and main body portion 310 of first holding member 300A are immersed in thermosetting resin in liquid phase. After that, the thermosetting resin in the casting container 2A is heated.
  • thermosetting resin is cured to form the exterior body 400, and the exterior body 400 covers the first capacitor element unit C1 to form the first capacitor 10A.
  • the first connecting portion 320 , the second connecting portion 330 and the two connection terminal portions 220 are exposed to the outside from the exterior body 400 .
  • the second capacitor element unit C2 is accommodated in the casting container 2B.
  • the first connecting portion 320 is fixed by a fixing jig (not shown), and the base end portion of the fixing portion 340 is fitted into the concave portion 21, thereby positioning the second capacitor element unit C2 with respect to the casting container 2B.
  • the fixing part 340 is protruded outside the casting container 2B.
  • the concave portion 21 is closed with the sealing member 22 after the fixing portion 340 is inserted.
  • a thermosetting resin in a liquid phase state is injected into the casting container 2B and heated.
  • thermosetting resin is cured to form the exterior body 400, and the exterior body 400 covers the second capacitor element unit C2 to form the second capacitor 10B.
  • the first connecting portion 320 , the fixing portion 340 and the two connection terminal portions 220 are exposed from the exterior body 400 .
  • thermosetting resin can be easily distributed in the casting containers 2A and 2B, and the exterior body 400 can be molded smoothly.
  • a plurality of first capacitors 10 ⁇ /b>A and two left and right second capacitors 10 ⁇ /b>B are connected by a first connecting portion 320 and a second connecting portion 330 and fixed with an adhesive or a binding band 500 .
  • the capacitor module 1 can be mounted on an external device, for example, an inverter device for driving an electric motor in an electric vehicle.
  • the capacitor module 1 is fixed to the external device by screwing the left and right fixing portions 340 of the second capacitor 10B using the holes 341 .
  • a pair of external busbars from an external device are connected to connection terminal portions 220 of a pair of busbars 200 of the plurality of first capacitors 10A and second capacitors 10B.
  • the capacitor (first capacitor 10A, second capacitor 10B) includes capacitor element 100 having electrode 110, bus bar 200 connected to electrode 110, and holding members (first holding member 300A, second holding member 300A, second holding member) holding bus bar 200. member 300B), and an exterior body 400 that covers the entire capacitor element 100, bus bar 200, and part of the holding member.
  • the holding member is provided with connecting portions (first connecting portion 320, second connecting portion 330) exposed from the exterior body 400 and connected to the holding members of other capacitors.
  • the capacitor module 1 is configured by connecting a plurality of capacitors (first capacitor 10A, second capacitor 10B) having the above configuration.
  • capacitors first capacitor 10A, second capacitor 10B and capacitor module 1 of the present embodiment
  • a plurality of capacitors are connected using their connection portions (first connection portion 320, second connection portion 330).
  • connection portions first connection portion 320, second connection portion 330.
  • a capacitor module 1 having a number of capacitor elements 100 corresponding to required specifications can be produced.
  • productivity can be improved.
  • productivity it may be possible to reduce product costs.
  • first connecting portion 320, second connecting portion 330 hold the pair of bus bars 200 of the adjacent capacitors (first capacitor 10A, second capacitor 10B) in the holding member (first holding member 300A).
  • second holding members 300B are connected to each other, the dimensional accuracy between the bus bars 200 of adjacent capacitors in the capacitor module 1 is improved.
  • capacitor element 100 has a pair of end faces 101 and peripheral face 102, electrodes 110 are formed on each end face 101, and busbars 200 are formed on each end face 101.
  • the holding members are arranged so as to face the peripheral surface 102 .
  • the holding members (the first holding member 300A and the second holding member 300B) are positioned between the two electrodes 110, the two bus bars 200 extending from the two electrodes 110 can be easily held by the holding members. .
  • the exterior body 400 has a rectangular parallelepiped shape, and the busbar 200 is partially exposed from one surface (upper surface 400a) of the exterior body 400. , and has a connection terminal portion 220 to which an external terminal is connected to the outside of the exterior body 400, and the connection portion (first connection portion 320, second connection portion 330) is connected to another capacitor in a direction parallel to the one surface. It is configured to be connected.
  • connection terminal portions 220 of the capacitors are arranged on the same plane, so that external terminals can be easily connected to the connection terminal portions 220.
  • the capacitors (first capacitor 10A, second capacitor 10B) have holding members (first holding member 300A, second holding member 300B) made of a resin material, capacitor element 100 having a pair of end surfaces 101, An electrode 110 is formed on each end surface 101 and a bus bar 200 is provided for each electrode 110 and is configured to be insert molded into the holding member.
  • the dimensional accuracy between the two bus bars 200 held by the holding members is enhanced. be able to.
  • the capacitors are formed in the holding members (first holding member 300A, second holding member 300B) with openings passing through the holding members in the direction in which the holding members and capacitor element 100 are arranged. 311 is provided.
  • the capacitors are configured such that the inner wall surface of the opening 311 is tapered such that the diameter of the opening 311 increases in the direction away from the capacitor element 100. ing.
  • the capacitor (second capacitor 10B) is configured such that the holding member (second holding member 300B) is provided with a fixing portion 340 that can be fixed to an external device.
  • the fixing portion 340 can be used to fix the capacitor module 1 to an external device. Moreover, since fixing portion 340 is provided on the holding member (second holding member 300B) that holds busbar 200, the positional accuracy of busbar 200 with reference to fixing portion 340 can be enhanced.
  • capacitor module 1 bus bar 200 held by holding members (first holding member 300A, second holding member 300B) having connecting portions (first connecting portion 320, second connecting portion 330) is connected to capacitor element 100.
  • Capacitor element units C1 and C2 formed by being connected to electrodes 110 are housed in mold members (casting containers 2A and 2B), and liquid-phase resin (thermosetting resin) is applied to the resin to form a capacitor.
  • the entire element 100 is immersed, and the resin is injected into the molding member so that the connecting portions are exposed, and the injected resin is cured. It is manufactured by forming capacitors (first capacitor 10A, second capacitor 10B) to be covered in an exposed state and connecting a plurality of capacitors by connecting portions.
  • the capacitors are arranged such that the entire body portion 310 of the holding member (first holding member 300A, second holding member 300B) is embedded inside the exterior body 400. It was configured as However, as shown in FIG. 7, the capacitors 10A and 10B may be configured such that a part of the main body portion 310 of the holding members 300A and 300B, that is, the upper side, is exposed from the exterior body 400.
  • FIG. 7 the contact area between the holding members 300A and 300B and the exterior body 400 is increased by the openings 311 formed in the main body 310, and the taper of the openings 311 provides an anchoring effect. Damage to the capacitors 10A and 10B such that the members 300A and 300B are separated from the upper end portion of the package 400 is prevented.
  • the pair of bus bars 200 are held by the holding members 300A and 300B by being insert-molded into the main body portion 310 of the holding members (the first holding member 300A and the second holding member 300B).
  • the configuration for holding the pair of busbars 200 on holding members 300A and 300B is not limited to insert molding.
  • a pair of busbars 200 may be attached to holding members 300A and 300B with a predetermined attachment structure.
  • FIG. 8 is a diagram showing a configuration for holding the pair of busbars 200 on the first holding member 300A according to the modification.
  • a circular hole 231 is formed in the relay portion 230 of the pair of busbars 200 .
  • Two slit-shaped holes 312 corresponding to the connection terminal portions 220 of the pair of bus bars are formed in the body portion 310 of the first holding member 300A.
  • Circular protrusions 313 corresponding to the holes 231 of the pair of busbars 200 are formed on the body portion 310 .
  • the connection terminal portions 220 of the pair of busbars 200 are passed through the holes 312 from the lower surface side of the main body portion 310 .
  • the second holding member 300B also has the same configuration as the first holding member 300A.
  • first connecting portion 320 and a second connecting portion 330 are provided at the portions (left and right ends).
  • first connecting portion 320 is provided at the end (left end) opposite to the end (right end) where the fixing portion 340 is provided.
  • the capacitor module 1 having the connecting terminal portions 220 in different directions can be produced. Also, as shown in FIG. 9(a), in the first capacitor 10A, even if the first connecting portion 320 and the second connecting portion 330 are provided at the two sets of opposing ends of the first holding member 300A, good. Also, as shown in FIG. 9B, in the second capacitor 10B, two ends (front and rear ends) that do not face the end (right end) where the fixing portion 340 of the second holding member 300B is provided A first connection part 320 and a second connection part 330 may be provided in the . In this case, for example, by connecting the first capacitor 10A and the second capacitor 10B in the front-rear direction as shown in FIG. , the capacitor module 1 having the connecting terminal portions 220 in different directions can be produced. Also, as shown in FIG.
  • the capacitor module 1 in which the capacitors 10A and 10B are arranged in multiple rows can be produced. In this manner, a capacitor module 1 having different arrangements of the capacitors 10A and 10B can be produced according to required specifications.
  • the configurations of the first connecting portion 320 and the second connecting portion 330 are not limited to the configurations of the above embodiments, and may be of any configuration.
  • the first connecting portion 320 includes a flange portion 326 having a plurality (two) of protrusions 325
  • the second connecting portion 330 includes a flange portion 326 having a plurality (two) of holes 335. It can be configured to include the portion 336 .
  • the first connecting portion 320 and the second connecting portion 330 are connected by overlapping the two flange portions 326 , 336 such that the protrusion 325 is inserted into the hole 335 .
  • the first connecting portion 320 and the second connecting portion 330 are fixed not only in the front, rear, left, and right directions but also in the vertical direction. can be
  • the fixing portion 340 is integrally formed with the main body portion 310 of the second holding member 300B.
  • the fixing part 340 may be formed separately from the body part 310 of the second holding member 300B and coupled to the body part 310 .
  • a connecting portion 345 is provided on the fixed portion 340 .
  • the connecting portion 345 has the same configuration as the first connecting portion 320 and includes an engaging piece 347 having a concave portion 346 and an engaging protrusion 348 .
  • the connecting portion 345 of the fixing portion 340 is connected to the second connecting portion 330 of the first holding member 300A and is fixed with an adhesive or the like, whereby the fixing portion 340 is integrated.
  • a second holding member 300B is configured.
  • the timing at which the fixing portion 340 is attached to the first holding member 300A to form the second holding member 300B may be any timing (process) in the process of manufacturing the capacitor module 1.
  • the formation timing may be before the capacitor manufacturing process of FIG. 5, at the end of the element unit forming process in the capacitor manufacturing process, or after the exterior body forming process in the capacitor manufacturing process. Alternatively, it may be at the end of the module assembly process of FIG.
  • FIG. 12(a) may be applied to the second holding member 300B shown in FIG. 9(b).
  • the fixed portion 340 may be connected to either of the two second connecting portions 330 provided on the first holding member 300A according to the specifications of the capacitor module 1 .
  • openings 311 are provided at four corners of main body 310 of the holding members (first holding member 300A and second holding member 300B).
  • the number, position, size and shape of the openings provided in main body 310 may be arbitrary.
  • the body portion 310 may not have an opening.
  • the inner wall surface of the opening 311 is tapered, but the taper may not be provided.
  • the capacitor module 1 is composed of a plurality of first capacitors 10A and second capacitors 10B.
  • the fixing portion 340 is not required when attaching to an external device, the capacitor module 1 may be configured only with a plurality of first capacitors 10A.
  • the second holding member 300B is provided with one fixing portion 340 at the right end portion of the main body portion 310 .
  • the position and the number of fixing portions 340 may be changed as appropriate.
  • the shape of the fixing portion 340 may be any shape as long as it can be fixed to an external device.
  • connection terminal portion 220 is provided on the bus bar 200 .
  • the number of connection terminal portions 220 may be changed as appropriate.
  • electrode terminal portion 210 may include a connection pin, and the connection pin may be connected to electrode 110 of capacitor element 100 by soldering or the like.
  • the configuration (shape) of bus bar 200 may be changed as appropriate.
  • one capacitor element 100 is included in the capacitors (first capacitor 10A, second capacitor 10B).
  • a plurality of capacitor elements 100 may be included in these capacitors 10A and 10B.
  • the exterior body 400 is formed in a rectangular parallelepiped shape.
  • exterior body 400 may be formed in another shape, such as an oblong cylinder shape similar to the shape of capacitor element 100 .
  • the capacitors (first capacitor 10A, second capacitor 10B) are arranged so that the holding members (first holding member 300A, second holding member 300B) face peripheral surface 102 of capacitor element 100. It was configured to be arranged.
  • capacitors 10A and 10B may be arranged such that holding members 300A and 300B face end face 101 of capacitor element 100.
  • the capacitor element 100 is formed by stacking two metallized films in which aluminum is vapor-deposited on a dielectric film, and winding or laminating the stacked metallized films.
  • the capacitor element 100 may be formed by stacking a metallized film in which aluminum is vapor-deposited on both sides of a dielectric film and an insulating film, and then winding or laminating them.
  • capacitors were film capacitors.
  • capacitors 10A and 10B may be capacitors other than film capacitors.
  • the present invention is useful for capacitors used in various electronic devices, electrical devices, industrial devices, vehicle electrical equipment, and the like.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

L'invention concerne des condensateurs qui peuvent réduire la perte de commutation, etc. dans le procédé de fabrication et qui peuvent améliorer la productivité. Les condensateurs (premier condensateur, second condensateur) comprenant chacun : un élément de condensateur ayant une électrode ; une barre omnibus connectée à l'électrode ; un élément de maintien (premier élément de maintien, second élément de maintien) qui maintient la barre omnibus ; et un corps de boîtier externe qui recouvre l'ensemble de l'élément de condensateur et une partie de la barre omnibus et de l'élément de maintien. Les éléments de maintien sont pourvus de parties de connexion (première partie de connexion, seconde partie de connexion) qui sont exposées à partir de l'emballage externe et reliées à l'élément de maintien de l'autre condensateur.
PCT/JP2021/048518 2021-02-19 2021-12-27 Condensateurs, module de condensateur et procédé de fabrication de module de condensateur WO2022176401A1 (fr)

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JP2023500595A JPWO2022176401A1 (fr) 2021-02-19 2021-12-27
CN202180093067.2A CN116830223A (zh) 2021-02-19 2021-12-27 电容器、电容器模块以及电容器模块的制造方法

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JP2021024868 2021-02-19
JP2021-024868 2021-02-19

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JP (1) JPWO2022176401A1 (fr)
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109057U (fr) * 1978-01-20 1979-08-01
JPS5591137U (fr) * 1978-12-19 1980-06-24
JPS5914329U (ja) * 1982-07-16 1984-01-28 日立コンデンサ株式会社 コンデンサ
JP2006216756A (ja) * 2005-02-03 2006-08-17 Matsushita Electric Ind Co Ltd ケースモールド型コンデンサ及びその製造方法
WO2012114748A1 (fr) * 2011-02-24 2012-08-30 パナソニック株式会社 Module de condensateur et unité de condensateur dans laquelle ledit module est utilisé
JP2020035785A (ja) * 2018-08-27 2020-03-05 トヨタ自動車株式会社 コンデンサモジュール

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109057U (fr) * 1978-01-20 1979-08-01
JPS5591137U (fr) * 1978-12-19 1980-06-24
JPS5914329U (ja) * 1982-07-16 1984-01-28 日立コンデンサ株式会社 コンデンサ
JP2006216756A (ja) * 2005-02-03 2006-08-17 Matsushita Electric Ind Co Ltd ケースモールド型コンデンサ及びその製造方法
WO2012114748A1 (fr) * 2011-02-24 2012-08-30 パナソニック株式会社 Module de condensateur et unité de condensateur dans laquelle ledit module est utilisé
JP2020035785A (ja) * 2018-08-27 2020-03-05 トヨタ自動車株式会社 コンデンサモジュール

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JPWO2022176401A1 (fr) 2022-08-25
CN116830223A (zh) 2023-09-29

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