WO2022176401A1 - Capacitors, capacitor module, and method for manufacturing capacitor module - Google Patents

Capacitors, capacitor module, and method for manufacturing capacitor module 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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Application number
PCT/JP2021/048518
Other languages
French (fr)
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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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 CN202180093067.2A priority Critical patent/CN116830223A/en
Priority to JP2023500595A priority patent/JPWO2022176401A1/ja
Publication of WO2022176401A1 publication Critical patent/WO2022176401A1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02Mountings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00Fixed capacitors; Processes of their manufacture
    • H01G4/32Wound capacitors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00Fixed capacitors; Processes of their manufacture
    • H01G4/38Multiple 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

Provided are capacitors that can reduce switching loss, etc. in the manufacturing process and can improve productivity. The capacitors (first capacitor, second capacitor) each comprise: a capacitor element having an electrode; a busbar connected to the electrode; a holding member (first holding member, second holding member) that holds the busbar; and an outer package body that covers the entire capacitor element and a portion of the busbar and holding member. The holding members are provided with connection portions (first connection portion, second connection portion) that are exposed from the outer packaging and connect to the holding member of the other capacitor.

Description

コンデンサ、コンデンサモジュールおよびコンデンサモジュールの製造方法CAPACITOR, CAPACITOR MODULE, AND CAPACITOR MODULE MANUFACTURING METHOD
 本発明は、コンデンサ、コンデンサモジュールおよびコンデンサモジュールの製造方法に関する。 The present invention relates to a capacitor, a capacitor module, and a method for manufacturing a capacitor module.
 コンデンサ素子の両端面に設けられた各電極に、それぞれバスバーを接続し、バスバーが接続されたコンデンサ素子をケースに収容して、当該ケース内に充填樹脂を充填するようにしたケースモールド型のコンデンサが知られている(例えば、特許文献1参照)。ケースと充填樹脂とで被覆されることにより、コンデンサ素子の防湿が図られる。 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. is known (see, for example, Patent Document 1). Moisture-proofing of the capacitor element is achieved by covering it with the case and the filling resin.
 従来、このようなコンデンサでは、製品ごとに、求められる仕様に応じて、コンデンサ素子の個数、バスバーの形状、ケースの形状等が設計され、製造が行われる。 Conventionally, in such capacitors, 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.
 即ち、設計により定められた個数のコンデンサ素子が配置され、個数に応じた形状を有するバスバーが全てのコンデンサ素子に接続されて、コンデンサ素子ユニットが作成される。その後、コンデンサ素子ユニットは、当該コンデンサ素子ユニットに対応する形状、サイズ等を有するケースに収容され、ケース内に液相状態の充填樹脂が注入される。その後、充填樹脂が硬化することにより、コンデンサ素子ユニットが充填樹脂とケースとで被覆される。 That is, 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.
特開2015-103777号公報JP 2015-103777 A
 従来のコンデンサでは、製品ごとに、部品や製造工程が大きく異なることになるため、製造工程の切替ロス、製造に用いられる治具の準備や管理に要する手間などが大きくなりやすい。 With conventional capacitors, the parts and manufacturing process differ greatly for each product, so switching losses in the manufacturing process and the time and effort required to prepare and manage the jigs used in manufacturing tend to increase.
 そこで、本発明は、製造工程の切替ロスなどを低減でき、生産性を向上させることができるコンデンサ、コンデンサモジュールおよびコンデンサモジュールの製造方法を提供することを目的とする。 Therefore, 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.
 本発明の第1の態様は、コンデンサに関する。本態様に係るコンデンサは、電極を有するコンデンサ素子と、前記電極に接続されるバスバーと、前記バスバーを保持する保持部材と、前記コンデンサ素子の全体と、前記バスバーおよび前記保持部材の一部とを被覆する外装体と、を備える。ここで、前記保持部材には、前記外装体から露出し、他の前記コンデンサの前記保持部材に連結される連結部が設けられる。 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. Here, the holding member is provided with a connecting portion exposed from the exterior body and connected to the holding member of the other capacitor.
 本発明の第2の態様は、コンデンサモジュールに関する。本態様に係るコンデンサモジュールは、複数個の上記第1の態様に係るコンデンサが連結されることにより構成される。 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.
 本発明の第3の態様は、コンデンサモジュールの製造方法に関する。本態様に係る製造方法では、連結部を有する保持部材に保持されたバスバーがコンデンサ素子の電極に接続されることにより形成されたコンデンサ素子ユニットを型部材に収容し、液相状態の樹脂を、当該樹脂に前記コンデンサ素子全体が浸漬し、前記樹脂から前記連結部が露出するように前記型部材内に注入し、注入された前記樹脂を硬化させて、硬化した前記樹脂が外装体として前記コンデンサ素子ユニットを前記連結部が露出した状態で被覆するコンデンサを作成し、複数個の前記コンデンサを前記連結部により連結する。 A third aspect of the present invention relates to a method for manufacturing a capacitor module. In the manufacturing method according to this aspect, 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.
 本発明によれば、製造工程の切替ロスなどを低減でき、生産性を向上させることができる。 According to the present invention, switching losses in the manufacturing process can be reduced, and productivity can be improved.
 本発明の効果ないし意義は、以下に示す実施の形態の説明により更に明らかとなろう。ただし、以下に示す実施の形態は、あくまでも、本発明を実施化する際の一つの例示であって、本発明は、以下の実施の形態に記載されたものに何ら制限されるものではない。 The effects and significance of the present invention will become clearer from the description of the embodiments shown below. However, the embodiment shown below is merely an example of carrying out the present invention, and the present invention is not limited to the embodiments described below.
図1は、実施の形態に係る、コンデンサモジュールの斜視図である。1 is a perspective view of a capacitor module according to an embodiment; FIG. 図2(a)および(b)は、それぞれ、実施の形態に係る、第1コンデンサを構成する第1コンデンサ素子ユニットの斜視図および分解斜視図である。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. 図3(a)は、実施の形態に係る、一対のバスバーが保持された第1保持部材の平面図であり、図3(b)および(c)は、それぞれ、図3(a)のA-A´断面図およびB-B´断面図である。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. 図4(a)および(b)は、それぞれ、実施の形態に係る、第2コンデンサを構成する第2コンデンサ素子ユニットの斜視図および分解斜視図である。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. 図5は、実施の形態に係る、コンデンサモジュールの製造方法について説明するための図である。FIG. 5 is a diagram for explaining the method of manufacturing the capacitor module according to the embodiment. 図6(a)および(b)は、実施の形態に係る、コンデンサモジュールの製造方法について説明するための図である。FIGS. 6A and 6B are diagrams for explaining the method of manufacturing the capacitor module according to the embodiment. 図7は、変更例に係る、コンデンサモジュールの斜視図である。FIG. 7 is a perspective view of a capacitor module according to a modification. 図8は、変更例に係る、一対のバスバーを第1保持部材に保持するための構成を示す図である。FIG. 8 is a diagram showing a configuration for holding a pair of bus bars on a first holding member according to a modification. 図9(a)および(b)は、それぞれ、変更例に係る、バスバーが保持された第1保持部材および第2保持部材の平面図である。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. 図10(a)および(b)は、変更例に係る、コンデンサモジュールの平面図である。FIGS. 10(a) and 10(b) are plan views of capacitor modules according to modifications. 図11は、変更例に係る、第1連結部および第2連結部の構成について説明するための図である。FIG. 11 is a diagram for explaining configurations of a first connecting portion and a second connecting portion according to a modification. 図12(a)は、変更例に係る、連結部が設けられた固定部の平面図であり、図12(b)は、変更例に係る、バスバーが保持された第2保持部材の平面図である。FIG. 12(a) is a plan view of a fixing portion provided with a connecting portion according to a modification, and FIG. 12(b) is a plan view of a second holding member holding a busbar according to a modification. is.
 以下、本発明の実施の形態について図を参照して説明する。便宜上、各図には、適宜、前後、左右および上下の方向が付記されている。なお、図示の方向は、あくまでコンデンサモジュールの相対的な方向を示すものであり、絶対的な方向を示すものではない。また、説明の便宜上、「底面部」、「前側面部」など、一部の構成において、図示の方向に従った名称がつけられる場合がある。 Embodiments of the present invention will be described below with reference to the drawings. For convenience, front-rear, left-right, and up-down directions are indicated in each figure as appropriate. It should be noted that the illustrated directions only indicate relative directions of the capacitor modules, and do not indicate absolute directions. Also, for convenience of explanation, some configurations such as “bottom portion” and “front side portion” may be named according to the direction of illustration.
 図1は、コンデンサモジュール1の斜視図である。図2(a)および(b)は、それぞれ、第1コンデンサ10Aを構成する第1コンデンサ素子ユニットC1の斜視図および分解斜視図である。図3(a)は、一対のバスバー200が保持された第1保持部材300Aの平面図であり、図3(b)および(b)は、それぞれ、図3(a)のA-A´断面図およびB-B´断面図である。図4(a)および(b)は、それぞれ、第2コンデンサ10Bを構成する第2コンデンサ素子ユニットC2の斜視図および分解斜視図である。 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, and 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.
 図1を参照して、コンデンサモジュール1は、複数個、たとえば、2個の第1コンデンサ10Aと、2個の第2コンデンサ10Bとを備える。複数個の第1コンデンサ10Aが左右方向に連結され、左右の端の各第1コンデンサ10Aに第2コンデンサ10Bが連結される。左右の2つの第2コンデンサ10Bは、前後の向きが反対とされる。第1コンデンサ10Aの個数は、静電容量など、求められる仕様に応じて決定される。このため、求められる仕様によっては、コンデンサモジュール1は、第1コンデンサ10Aを備えず、2個の第2コンデンサ10Bのみを備える構成となる場合がある。 Referring to FIG. 1, 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.
 図1ないし図3(c)を参照して、第1コンデンサ10Aは、コンデンサ素子100と、一対のバスバー200と、第1保持部材300Aと、外装体400とを備える。コンデンサ素子100、一対のバスバー200および第1保持部材300Aにより第1コンデンサ素子ユニットC1が構成される。 1 to 3(c), 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.
 コンデンサ素子100は、誘電体フィルム上にアルミニウムを蒸着させた2枚の金属化フィルムを重ね、重ねた金属化フィルムを巻回または積層し、扁平状に押圧することにより形成される。コンデンサ素子100は、扁平な長円柱に近い形状に形成され、一対の端面101と、周面102とを有する。コンデンサ素子100には、両端面101に、亜鉛等の金属の吹付けにより電極110が形成される。 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.
 なお、本実施の形態のコンデンサ素子100は、誘電体フィルム上にアルミニウムを蒸着させた金属化フィルムにより形成されたが、これ以外にも、亜鉛、マグネシウム等の他の金属を蒸着させた金属化フィルムにより形成されてもよい。あるいは、コンデンサ素子100は、これらの金属のうち、複数の金属を蒸着させた金属化フィルムにより形成されてもよいし、これらの金属どうしの合金を蒸着させた金属化フィルムにより形成されてもよい。 Note that the 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. .
 一対のバスバー200は、導電性材料の板、たとえば、銅板から適宜切り抜き、折り曲げることによって所定の形状に形成される。各バスバー200は、左右方向に延びる長方形の板状を有する電極端子部210と、上下方向に延びる長方形の板状を有する接続端子部220と、前後方向に延びる長方形の板状を有し、電極端子部210と接続端子部220とを繋ぐ中継部230とにより構成される。 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 .
 各バスバー200は、各電極110に電気的に接続される端子部材であり、その電極端子部210が半田付け等の接合方法でコンデンサ素子100の各電極110に接合される。 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.
 第1保持部材300Aは、ポリフェニレンサルファイド(PPS)等の熱可塑性樹脂により形成され、本体部310と、第1連結部320と、第2連結部330とを含む。 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.
 本体部310は、長方形の板状を有する。本体部310には、4つの角部に長方形状を有する開口部311が形成される。図3(b)に示すように、4つの開口部311は、前後左右の内壁面がテーパーを有しており、それらの口径が、本体部310の下面側から上面側、即ち上方向(コンデンサ素子100から離れる方向)に向かうに従って大きくなっている。 The body part 310 has a rectangular plate shape. A rectangular opening 311 is formed at four corners of the main body 310 . As shown in FIG. 3B, 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).
 第1連結部320および第2連結部330は、本体部310の相対する端部である左右の端部からそれぞれ立ち上がるように形成される。第1連結部320には、上端部の前側に、凹部321を有し、左方に張り出す係合片322が形成され、上端部の後側に、上方に突出する係合突部323が形成される。第2連結部330には、上端部の後側に、凹部331を有し、右方に張り出す係合片332が形成され、上端部の前側に、上方に突出する係合突部333が形成される。第1連結部320の係合片322および係合突部323と第2連結部330の係合片332および係合突部333は、同じ構成であり、2つの凹部321、331は、2つの係合突部323、333に対応する形状を有する。 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 .
 第1保持部材300Aは、コンデンサ素子100の周面102と対向するようにコンデンサ素子100の上方に近接して配置され、一対のバスバー200を保持する。即ち、図3(c)に示すように、一対のバスバー200は、接続端子部220の根元部分が本体部310に埋め込まれるように、第1保持部材300Aにインサート成形され、上下、前後および左右方向に動かないよう保持される。接続端子部220が、本体部310から上方に突出する。このように、一対のバスバー200が第1保持部材300Aに保持されることにより、2つの接続端子部220の間の良好な寸法精度が確保される。 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.
 外装体400は、エポキシ樹脂等の熱硬化性樹脂により形成され、直方体形状を有する。外装体400は、コンデンサ素子100全体と、一対のバスバー200および第1保持部材300Aの一部とを被覆する。一対のバスバー200の接続端子部220と、第1保持部材300Aの第1連結部320および第2連結部330とが外装体400の一面である上面400aから外部に露出する。 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.
 図1、図4(a)および(b)を参照して、第2コンデンサ10Bは、第1コンデンサ10Aと同様、コンデンサ素子100と、一対のバスバー200と、外装体400とを備える。さらに、第2コンデンサ10Bは、第1保持部材300Aに替えて、第2保持部材300Bを備える。コンデンサ素子100、一対のバスバー200および第2保持部材300Bにより第2コンデンサ素子ユニットC2が構成される。 1, 4(a) and 4(b), 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.
 第2保持部材300Bは、第1保持部材300Aと同様、コンデンサ素子100の周面102と対向するようにコンデンサ素子100の上方に近接して配置され、一対のバスバー200を保持する。 Like the first holding member 300A, 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.
 第2保持部材300Bは、第1保持部材300Aと同様、本体部310と、第1連結部320とを含む。さらに、第2保持部材300Bは、第2連結部330に替えて、固定部340を含む。 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.
 固定部340は、半長円形の板状を有する。固定部340には、円形の孔341が形成される。孔341には、補強のために金属製のカラー342が埋め込まれる。 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.
 第2コンデンサ10Bにおいて、一対のバスバー200の接続端子部220と、第2保持部材300Bの第1連結部320とが、外装体400の上面400aから外部に露出し、第2保持部材300Bの固定部340が外装体400の側面400bから露出する。 In the second capacitor 10B, the 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 .
 なお、図1のように、前後に反対に向けられた左側の第2コンデンサ10Bの第2保持部材300Bでは、第1連結部320が第2連結部330と同じ構成となり、第2連結部330として機能する。 As shown in FIG. 1, in the second holding member 300B of the second capacitor 10B on the left side facing in the front-rear direction, the first connecting portion 320 has the same configuration as the second connecting portion 330, and the second connecting portion 330 function as
 一方の第1コンデンサ10Aの第1連結部320と他方の第1コンデンサ10Aの第2連結部330とが連結されることにより、複数個(図1では、2個)の第1コンデンサ10Aが、左右方向、即ち、一対のバスバー200の接続端子部220が露出する外装体400の上面400aに平行な方向に連結される。この際、第1連結部320の係合突部323が第2連結部330の係合片332の凹部331に嵌り込むことにより係合突部323と係合片332とが係合し、第2連結部330の係合突部333が第1連結部320の係合片322の凹部321に嵌り込むことにより係合突部333と係合片322とが係合する。これにより、複数個の第1コンデンサ10Aの上下方向および前後方向の動きが規制される。第1コンデンサ10A同士の間の上下、前後および左右方向の位置が決められた状態となる。 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. At this time, 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 . As a result, the movement of the plurality of first capacitors 10A in the up-down direction and in the front-rear direction is restricted. The vertical, front-rear, and left-right positions between the first capacitors 10A are determined.
 同様に、右端の第1コンデンサ10Aの第2連結部330と右側の第2コンデンサ10Bの第1連結部320とが連結されることにより、これら第1コンデンサ10Aおよび第2コンデンサ10Bが左右方向に連結される。また、左端の第1コンデンサ10Aの第1連結部320と左側の第2コンデンサ10Bの第1連結部320(第2連結部330として機能)とが連結されることにより、これら第1コンデンサ10Aおよび第2コンデンサ10Bが左右方向に連結される。第1コンデンサ10Aと第2コンデンサ10Bとの間の上下、前後および左右方向の位置が決められた状態となる。 Similarly, by connecting the second connecting portion 330 of the first capacitor 10A on the right end to the first connecting portion 320 of the second capacitor 10B on the right side, 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.
 複数個の第1コンデンサ10Aと2個の第2コンデンサ10Bは、第1連結部320と第2連結部330との間が接着剤により固定されるとともに、連結されてひと固まりとなった外装体400の側面(周面)に結束バンド500が巻かれることによって固定される。なお、これら第1コンデンサ10Aおよび第2コンデンサ10Bの固定方法は、上記の方法に限られない。たとえば、結束バンド500が用いられず、第1連結部320と第2連結部330との間が接着剤により固定されるとともに、隣接する2つの外装体400の側面の間が接着剤により固定される方法が採られてもよいし、接着剤が用いられず、結束バンド500のみにより固定される方法が採られてもよい。また、たとえば、結束バンド500でなく、粘着テープが、ひと固まりとなった外装体400の側面(周面)に巻かれるようにされてもよい。 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. For example, 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. Alternatively, a method of fixing only by the binding band 500 without using an adhesive may be adopted. Further, for example, instead of binding band 500, an adhesive tape may be wound around the side surface (peripheral surface) of exterior body 400 which is a lump.
 図5、図6(a)および(b)は、コンデンサモジュール1の製造方法について説明するための図である。図5は、コンデンサモジュール製造工程の流れを示すフロチャートであり、図6(a)および(b)は、外装体形成工程の流れを説明するための図である。 5, 6(a) and 6(b) are diagrams for explaining the manufacturing method of the capacitor module 1. FIG. FIG. 5 is a flow chart showing the flow of the capacitor module manufacturing process, and FIGS. 6A and 6B are diagrams for explaining the flow of the exterior body forming process.
 コンデンサモジュール1の製造工程は、コンデンサ製造工程と、モジュール組立工程とを含む。コンデンサ製造工程では、第1コンデンサ10Aおよび第2コンデンサ10Bが作成される。モジュール組立工程では、コンデンサ製造工程により作成された複数個の第1コンデンサ10Aおよび第2コンデンサ10Bが連結されることにより、コンデンサモジュール1が組み立てられる。 The manufacturing process of the capacitor module 1 includes a capacitor manufacturing process and a module assembling process. In the capacitor manufacturing process, the first capacitor 10A and the second capacitor 10B are created. In the module assembly process, capacitor module 1 is assembled by connecting a plurality of first capacitors 10A and second capacitors 10B produced in the capacitor manufacturing process.
 コンデンサ製造工程は、素子ユニット形成工程と外装体形成工程により構成される。まず、素子ユニット形成工程が行われる。第1保持部材300Aに保持された一対のバスバー200がコンデンサ素子100の両電極110に接続されることにより、第1コンデンサ素子ユニットC1が形成される。また、第2保持部材300Bに保持された一対のバスバー200がコンデンサ素子100の両電極110に接続されることにより、第2コンデンサ素子ユニットC2が形成される。 The capacitor manufacturing process consists of an element unit forming process and an exterior body forming process. First, 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.
 次に、外装体形成工程が行われる。外装体形成工程には、型部材として、第1コンデンサ10A用の注型容器2Aと第2コンデンサ10B用の注型容器2Bが用いられる。注型容器2A、2Bは、金属製であり、外装体400の形状に対応する、上面が開口するほぼ直方体の箱状を有する。注型容器2Bには、上端部に、第2保持部材300Bの固定部340に対応する凹部21が形成される。 Next, the exterior body forming process is performed. 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.
 図6(a)に示すように、第1コンデンサ素子ユニットC1が注型容器2Aに収容される。このとき、図示しない固定治具により第1連結部320および第2連結部330が固定され、第1コンデンサ素子ユニットC1が注型容器2Aに対して位置決めされる。次に、注型容器2A内に、液相状態の熱硬化性樹脂、たとえばエポキシ樹脂が注入される。コンデンサ素子100と、一対のバスバー200の電極端子部210および中継部230と、第1保持部材300Aの本体部310とが液相状態の熱硬化性樹脂に浸漬する。その後、注型容器2A内の熱硬化性樹脂が加熱される。これにより、熱硬化性樹脂が硬化して外装体400となり、外装体400により第1コンデンサ素子ユニットC1が被覆されてなる第1コンデンサ10Aが作成される。第1連結部320、第2連結部330および2つの接続端子部220が外装体400から外部に露出する。 As shown in FIG. 6(a), the first capacitor element unit C1 is accommodated in the casting container 2A. At this time, 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. Next, 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. As a result, the 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 .
 同様に、図6(b)に示すように、第2コンデンサ素子ユニットC2が注型容器2Bに収容される。このとき、図示しない固定治具により第1連結部320が固定され、固定部340の基端部分が凹部21に嵌り込むことにより、第2コンデンサ素子ユニットC2が注型容器2Bに対して位置決めされる。固定部340が注型容器2Bの外に出る。凹部21は、固定部340が挿入された後に封止部材22で塞がれる。注型容器2B内に、液相状態の熱硬化性樹脂が注入され、加熱される。これにより、熱硬化性樹脂が硬化して外装体400となり、外装体400により第2コンデンサ素子ユニットC2が被覆されてなる第2コンデンサ10Bが作成される。第1連結部320、固定部340および2つの接続端子部220が外装体400から露出する。 Similarly, as shown in FIG. 6(b), the second capacitor element unit C2 is accommodated in the casting container 2B. At this time, 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. be. 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. As a result, the 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 .
 なお、第1保持部材300Aおよび第2保持部材300Bの本体部310には、4つの開口部311が形成されており、液相状態の熱硬化性樹脂が、注型容器2A、2B内に注入される際にこれら開口部311を流通する。これにより、熱硬化性樹脂が注型容器2A、2B内に行き渡りやすくなり、外装体400を円滑にモールド形成することができる。 Four openings 311 are formed in the body portion 310 of the first holding member 300A and the second holding member 300B, and the liquid-phase thermosetting resin is injected into the casting containers 2A and 2B. The liquid flows through these openings 311 when the liquid is supplied. As a result, the thermosetting resin can be easily distributed in the casting containers 2A and 2B, and the exterior body 400 can be molded smoothly.
 次に、モジュール組立工程が行われる。複数個の第1コンデンサ10Aと左右の2個の第2コンデンサ10Bとが、第1連結部320および第2連結部330により連結され、接着剤や結束バンド500で固定される。 Next, the module assembly process is performed. 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 .
 このようにして、図1のように、コンデンサモジュール1が完成する。 In this way, the capacitor module 1 is completed as shown in FIG.
 コンデンサモジュール1は、外部装置、たとえば、電気自動車において電気モータを駆動するためのインバータ装置に搭載され得る。コンデンサモジュール1は、第2コンデンサ10Bの左右の固定部340が、孔341を用いたネジ止めにより、外部装置に固定される。そして、外部装置からの一対の外部バスバーが、複数個の第1コンデンサ10Aおよび第2コンデンサ10Bの一対のバスバー200の接続端子部220に接続される。 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.
 <実施の形態の効果>
 以上、本実施の形態によれば、以下の効果が奏される。
<Effect of Embodiment>
As described above, according to the present embodiment, the following effects can be obtained.
 コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、電極110を有するコンデンサ素子100と、電極110に接続されるバスバー200と、バスバー200を保持する保持部材(第1保持部材300A、第2保持部材300B)と、コンデンサ素子100の全体と、バスバー200および保持部材の一部とを被覆する外装体400と、を備える。保持部材には、外装体400から露出し、他のコンデンサの保持部材に連結される連結部(第1連結部320、第2連結部330)が設けられる。 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.
 コンデンサモジュール1は、複数個の上記の構成のコンデンサ(第1コンデンサ10A、第2コンデンサ10B)が連結されることにより構成される。 The capacitor module 1 is configured by connecting a plurality of capacitors (first capacitor 10A, second capacitor 10B) having the above configuration.
 本実施の形態のコンデンサ(第1コンデンサ10A、第2コンデンサ10B)およびコンデンサモジュール1によれば、複数のコンデンサを、それらの連結部(第1連結部320、第2連結部330)を用いて連結することにより、求められる仕様に応じた個数のコンデンサ素子100を有するコンデンサモジュール1を作成できる。これにより、コンデンサ素子100の個数が異なるコンデンサモジュール1に対して、共通のコンデンサを利用できるので、コンデンサに係る部品および製造工程を共通化することが可能となり、生産性を向上できる。また、生産性が向上することにより、製品コストを低減することが可能となり得る。 According to the 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). By connecting them, a capacitor module 1 having a number of capacitor elements 100 corresponding to required specifications can be produced. As a result, since a common capacitor can be used for capacitor modules 1 having different numbers of capacitor elements 100, parts and manufacturing processes related to capacitors can be shared, and productivity can be improved. In addition, by improving productivity, it may be possible to reduce product costs.
 しかも、連結部(第1連結部320、第2連結部330)により、隣接するコンデンサ(第1コンデンサ10A、第2コンデンサ10B)における一対のバスバー200が保持された保持部材(第1保持部材300A、第2保持部材300B)同士が連結されるので、コンデンサモジュール1において、隣り合うコンデンサのバスバー200の間の寸法精度が高くなる。 Moreover, the connecting portions (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). , and 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.
 さらに、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、コンデンサ素子100が一対の端面101と周面102とを有し、電極110が、それぞれの端面101に形成され、バスバー200が、それぞれの電極110に対して設けられ、保持部材(第1保持部材300A、第2保持部材300B)が周面102と対向するように配置されるような構成とされている。 Furthermore, in the capacitors (first capacitor 10A, second capacitor 10B), 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. , and the holding members (the first holding member 300A and the second holding member 300B) are arranged so as to face the peripheral surface 102 .
 この構成によれば、保持部材(第1保持部材300A、第2保持部材300B)が2つの電極110の間に位置するので、2つの電極110から延びる2つのバスバー200を保持部材で保持しやすい。 According to this configuration, since 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. .
 さらに、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、外装体400が直方体形状を有し、バスバー200が、当該バスバー200の一部が外装体400の一面(上面400a)から露出して、外装体400の外部に外部端子が接続される接続端子部220を有し、連結部(第1連結部320、第2連結部330)が、上記一面と平行な方向において、他のコンデンサに連結されるような構成とされている。 Furthermore, in the capacitors (first capacitor 10A, second capacitor 10B), 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.
 この構成によれば、コンデンサモジュール1において、各コンデンサ(第1コンデンサ10A、第2コンデンサ10B)の接続端子部220が同じ面上に並ぶので、外部端子を接続端子部220に接続しやすくなる。 According to this configuration, in the capacitor module 1, the connection terminal portions 220 of the capacitors (the first capacitor 10A and the second capacitor 10B) are arranged on the same plane, so that external terminals can be easily connected to the connection terminal portions 220.
 さらに、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、保持部材(第1保持部材300A、第2保持部材300B)が樹脂材料により形成され、コンデンサ素子100が一対の端面101を有し、電極110が、それぞれの端面101に形成され、バスバー200が、それぞれの電極110に対して設けられ、保持部材にインサート成形されるような構成とされている。 Furthermore, 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.
 この構成によれば、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)において、保持部材(第1保持部材300A、第2保持部材300B)に保持された2つのバスバー200の間の寸法精度を高めることができる。 According to this configuration, in the capacitor (first capacitor 10A, second capacitor 10B), the dimensional accuracy between the two bus bars 200 held by the holding members (first holding member 300A, second holding member 300B) is enhanced. be able to.
 さらに、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、保持部材(第1保持部材300A、第2保持部材300B)に、保持部材とコンデンサ素子100が並ぶ方向に保持部材を貫通する開口部311が設けられるような構成とされている。 Furthermore, the capacitors (first capacitor 10A, second capacitor 10B) 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.
 この構成によれば、保持部材(第1保持部材300A、第2保持部材300B)と外装体400の上記並ぶ方向に沿った面同士の接触面積を増やすことができるので、上記並ぶ方向に保持部材と外装体400との間の結合力が強くなる。これにより、連結部(第1連結部320、第2連結部330)を通じて保持部材に、上記並び方向、特に保持部材がコンデンサ素子100から離れる方向の大きな力が加わっても、外装体400に破損等が生じにくい。 With this configuration, it is possible to increase the contact area between the holding members (first holding member 300A, second holding member 300B) and the surfaces of the exterior body 400 along the arranging direction. and the exterior body 400 becomes stronger. As a result, even if a large force is applied to the holding member through the connecting portions (first connecting portion 320, second connecting portion 330) in the above-described alignment direction, particularly in the direction in which the holding member separates from capacitor element 100, exterior body 400 is damaged. etc. is unlikely to occur.
 さらに、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、開口部311の内壁面に、開口部311の口径がコンデンサ素子100から離れる方向に向かうに従って大きくなるテーパーが設けられるような構成とされている。 Furthermore, the capacitors (the first capacitor 10A and the second capacitor 10B) 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.
 この構成によれば、開口部311の中に入り込んでいる樹脂によってアンカー効果が生じるので、保持部材(第1保持部材300A、第2保持部材300B)に、上記離れる方向の大きな力が加わった場合に、一層、外装体400に破損等が生じにくい。 According to this configuration, since the anchoring effect is generated by the resin that has entered the opening 311, when a large force is applied to the holding members (the first holding member 300A and the second holding member 300B) in the separating direction, Furthermore, damage to the exterior body 400 is much less likely to occur.
 さらに、コンデンサ(第2コンデンサ10B)は、保持部材(第2保持部材300B)に、外部装置に固定することが可能な固定部340が設けられるような構成とされている。 Furthermore, 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.
 この構成によれば、固定部340を用いてコンデンサモジュール1を外部装置に固定できる。しかも、固定部340は、バスバー200が保持された保持部材(第2保持部材300B)に設けられているので、固定部340を基準としたバスバー200の位置精度を高めることができる。 According to this configuration, 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.
 さらに、コンデンサモジュール1は、連結部(第1連結部320、第2連結部330)を有する保持部材(第1保持部材300A、第2保持部材300B)に保持されたバスバー200がコンデンサ素子100の電極110に接続されることにより形成されたコンデンサ素子ユニットC1、C2を型部材(注型容器2A、2B)に収容し、液相状態の樹脂(熱可硬化性樹脂)を、当該樹脂にコンデンサ素子100全体が浸漬し、樹脂から連結部が露出するように型部材内に注入し、注入された樹脂を硬化させて、硬化した樹脂が外装体400としてコンデンサ素子ユニットC1、C2を連結部が露出した状態で被覆するコンデンサ(第1コンデンサ10A、第2コンデンサ10B)を作成し、複数個のコンデンサを連結部により連結することにより製造される。 Further, in 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.
 この製造方法によれば、コンデンサ素子100の個数が異なるコンデンサモジュール1に対して、共通のコンデンサを利用できるので、コンデンサに係る部品および製造工程を共通化することが可能となり、生産性を向上できる。また、生産性が向上することにより、製品コストを低減することが可能となり得る。 According to this manufacturing method, since a common capacitor can be used for capacitor modules 1 having different numbers of capacitor elements 100, it is possible to share parts and manufacturing processes related to capacitors, thereby improving productivity. . In addition, by improving productivity, it may be possible to reduce product costs.
 以上、本発明の実施の形態について説明したが、本発明は、上記実施の形態に限定されるものではなく、また、本発明の適用例も、上記実施の形態の他に、種々の変更が可能である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and the application examples of the present invention may be modified in various ways other than the above-described embodiments. It is possible.
 たとえば、上記実施の形態では、コンデンサ(第1コンデンサ10A、コンデンサ10B)は、保持部材(第1保持部材300A、第2保持部材300B)の本体部310全体が外装体400の内部に埋まり込むような構成とされた。しかしながら、図7に示すように、コンデンサ10A、10Bは、保持部材300A、300Bの本体部310の一部、即ち上側が外装体400から露出するような構成とされてもよい。上記の構成とされた場合、本体部310に形成された開口部311による保持部材300A、300Bと外装体400との間の接触面積の増加と、開口部311のテーパーによるアンカー効果とにより、保持部材300A、300Bが外装体400の上端部分から外れてしまうようなコンデンサ10A、10Bの破損が防止される。 For example, in the above-described embodiment, the capacitors (first capacitor 10A, capacitor 10B) 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. In the case of the above configuration, 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.
 また、上記実施の形態では、一対のバスバー200が、保持部材(第1保持部材300A、第2保持部材300B)の本体部310にインサート成形されることにより、保持部材300A、300Bに保持された。しかしながら、一対のバスバー200を保持部材300A、300Bに保持するための構成は、インサート成形に限られない。たとえば、一対のバスバー200が、保持部材300A、300Bに、所定の取付構造により取り付けられてもよい。 Further, in the above-described embodiment, 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). . However, the configuration for holding the pair of busbars 200 on holding members 300A and 300B is not limited to insert molding. For example, a pair of busbars 200 may be attached to holding members 300A and 300B with a predetermined attachment structure.
 図8は、変更例に係る、一対のバスバー200を第1保持部材300Aに保持するための構成を示す図である。一対のバスバー200には、中継部230に円形の孔231が形成される。第1保持部材300Aには、本体部310に、一対のバスバーの接続端子部220に対応する2つのスリット状の孔312が形成される。また、本体部310には、一対のバスバー200の孔231に対応する円形の突起313が形成される。一対のバスバー200の接続端子部220が、本体部310の下面側から孔312に通される。さらに、一対のバスバー200の孔231に本体部310の突起313が嵌め込まれる。これにより、一対のバスバー200が第1保持部材300Aに保持される。第2保持部材300Bにおいても、第1保持部材300Aと同様な構成が採られる。 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 . Furthermore, the protrusions 313 of the main body portion 310 are fitted into the holes 231 of the pair of busbars 200 . As a result, the pair of busbars 200 are held by the first holding member 300A. The second holding member 300B also has the same configuration as the first holding member 300A.
 さらに、上記実施の形態では、第1コンデンサ10Aにおいて、第1保持部材300Aの2組の相対する2つ端部(左右の端部、前後の端部)のうち1組の相対する2つの端部(左右の端部)に第1連結部320と第2連結部330が設けられた。また、第2コンデンサ10Bにおいて、固定部340が設けられた端部(右端部)と相対する端部(左端部)に第1連結部320が設けられた。 Furthermore, in the above-described embodiment, in the first capacitor 10A, one set of the two opposing ends (left and right ends, front and rear ends) of the first holding member 300A A first connecting portion 320 and a second connecting portion 330 are provided at the portions (left and right ends). In the second capacitor 10B, the first connecting portion 320 is provided at the end (left end) opposite to the end (right end) where the fixing portion 340 is provided.
 しかしながら、図9(a)に示すように、第1コンデンサ10Aにおいて、第1保持部材300Aの2組の相対する2つ端部に第1連結部320と第2連結部330が設けられてもよい。また、図9(b)に示すように、第2コンデンサ10Bにおいて、第2保持部材300Bの固定部340が設けられた端部(右端部)と相対しない2つの端部(前後の端部)に第1連結部320と第2連結部330が設けられてもよい。この場合、たとえば、図10(a)のように、第1コンデンサ10Aおよび第2コンデンサ10Bを前後方向に連結することにより、上記実施の形態とはコンデンサ10A、10Bの向き、即ち一対のバスバー200の接続端子部220の向きが異なるコンデンサモジュール1を作成できる。また、図10(b)のように、第1コンデンサ10Aおよび第2コンデンサ10Bを前後方向および左右方向に連結することにより、コンデンサ10A、10Bが複数列に配置されたコンデンサモジュール1を作成できる。このように、求められる仕様に応じて、コンデンサ10A、10Bの配置構成が異なるコンデンサモジュール1を作成できる。 However, 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. 10B, by connecting the first capacitor 10A and the second capacitor 10B in the front-rear direction and the left-right direction, 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.
 さらに、第1連結部320および第2連結部330の構成は、上記実施の形態の構成に限られず、如何なる構成であってもよい。たとえば、図11に示すように、第1連結部320が複数個(2個)の突起325を有するフランジ部326を含み、第2連結部330が複数個(2個)の孔335を有するフランジ部336を含むような構成とすることができる。この構成では、突起325を孔335に挿入するように2つのフランジ部326、336を重ねることにより、第1連結部320と第2連結部330とが連結される。なお、突起325に熱が加えられ、突起325が孔335側に押しつぶされることにより、第1連結部320と第2連結部330とが、前後左右の方向のみならず上下方向に固定されるようにしてもよい。 Furthermore, 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. For example, as shown in FIG. 11, the first connecting portion 320 includes a flange portion 326 having a plurality (two) of protrusions 325, and 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 . In this configuration, 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 . By applying heat to the protrusion 325 and pressing the protrusion 325 toward 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
 さらに、上記実施の形態では、固定部340は、第2保持部材300Bの本体部310に一体形成された。しかしながら、固定部340は、第2保持部材300Bの本体部310と別体に形成され、本体部310と結合されてもよい。たとえば、図12(a)に示すように、固定部340に連結部345が設けられる。連結部345は、第1連結部320と同じ構成であり、凹部346を有する係合片347と係合突部348とを備える。図12(b)に示すように、第1保持部材300Aの第2連結部330に固定部340の連結部345が連結されて接着剤等で固定されることにより、固定部340を一体的に有する第2保持部材300Bが構成される。 Furthermore, in the above embodiment, the fixing portion 340 is integrally formed with the main body portion 310 of the second holding member 300B. However, 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 . For example, as shown in FIG. 12( a ), 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 . As shown in FIG. 12(b), 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.
 第1保持部材300Aに固定部340が取り付けられて第2保持部材300Bが形成されるタイミングは、コンデンサモジュール1が製造される過程の如何なるタイミング(工程)でもよい。たとえば、形成タイミングは、図5のコンデンサ製造工程の前でもよいし、コンデンサ製造工程の素子ユニット形成工程の最後でもよいし、コンデンサ製造工程の外装体形成工程の後でもよい。あるいは、図5のモジュール組立工程の最後でもよい。 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. For example, 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.
 なお、上記の図12(a)の構成が、図9(b)に示す第2保持部材300Bに適用されてもよい。この場合、コンデンサモジュール1の仕様に応じて、第1保持部材300Aに設けられた2つの第2連結部330の何れかに固定部340が連結されるとよい。 The configuration of FIG. 12(a) may be applied to the second holding member 300B shown in FIG. 9(b). In this case, 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 .
 さらに、上記実施の形態では、保持部材(第1保持部材300A、第2保持部材300B)の本体部310の4つの角部に開口部311が設けられた。しかしながら、本体部310に設けられる開口部の個数、位置、大きさおよび形状は、如何なるものであってもよい。さらに、本体部310に開口部が設けられなくてもよい。 Furthermore, in the above-described embodiment, openings 311 are provided at four corners of main body 310 of the holding members (first holding member 300A and second holding member 300B). However, the number, position, size and shape of the openings provided in main body 310 may be arbitrary. Furthermore, the body portion 310 may not have an opening.
 さらに、上記実施の形態では、開口部311の内壁面にテーパーが設けられたが、テーパーが設けられなくてもよい。 Furthermore, in the above embodiment, the inner wall surface of the opening 311 is tapered, but the taper may not be provided.
 さらに、上記実施の形態では、コンデンサモジュール1が、複数個の第1コンデンサ10Aおよび第2コンデンサ10Bにより構成された。しかしながら、外部装置に取り付ける際に固定部340が不要である場合は、複数個の第1コンデンサ10Aのみによりコンデンサモジュール1が構成されてもよい。 Furthermore, in the above embodiment, the capacitor module 1 is composed of a plurality of first capacitors 10A and second capacitors 10B. However, if 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.
 さらに、上記実施の形態では、第2保持部材300Bには、本体部310の右端部に1つの固定部340が設けられた。しかしながら、固定部340の位置や個数は、適宜、変更されてよい。また、固定部340の形状も、外部装置に固定可能であれば、如何なるものであってもよい。 Furthermore, in the above embodiment, the second holding member 300B is provided with one fixing portion 340 at the right end portion of the main body portion 310 . However, the position and the number of fixing portions 340 may be changed as appropriate. Also, the shape of the fixing portion 340 may be any shape as long as it can be fixed to an external device.
 さらに、上記実施の形態では、バスバー200に、1つの接続端子部220が設けられた。接続端子部220の個数は、適宜、変更されてよい。また、電極端子部210が接続ピンを含み、当該接続ピンがコンデンサ素子100の電極110に半田付け等により接続されてもよい。このように、バスバー200の構成(形状)は、適宜、変更されてよい。 Furthermore, in the above embodiment, one connection terminal portion 220 is provided on the bus bar 200 . The number of connection terminal portions 220 may be changed as appropriate. Further, 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. Thus, the configuration (shape) of bus bar 200 may be changed as appropriate.
 さらに、上記実施の形態では、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)に1つのコンデンサ素子100が含まれた。しかしながら、これらコンデンサ10A、10Bに、複数のコンデンサ素子100が含まれてもよい。 Furthermore, in the above embodiment, one capacitor element 100 is included in the capacitors (first capacitor 10A, second capacitor 10B). However, a plurality of capacitor elements 100 may be included in these capacitors 10A and 10B.
 さらに、上記実施の形態では、外装体400が直方体形状に形成された。しかしながら、外装体400は、他の形状、たとえば、コンデンサ素子100の形状に相似する長円柱形状に形成されてもよい。
さらに、上記実施の形態では、コンデンサ(第1コンデンサ10A 、第2コンデンサ10B) は、保持部材(第1保持部材300A 、第2保持部材300B)がコンデンサ素子100の周面102と対向するように配置される構成とされた。しかしながら、コンデンサ10A、10B は、保持部材300A、300Bがコンデンサ素子100の端面101と対向するように配置される構成とされてもよい。
Furthermore, in the above-described embodiment, the exterior body 400 is formed in a rectangular parallelepiped shape. However, exterior body 400 may be formed in another shape, such as an oblong cylinder shape similar to the shape of capacitor element 100 .
Furthermore, in the above embodiment, 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. However, capacitors 10A and 10B may be arranged such that holding members 300A and 300B face end face 101 of capacitor element 100. FIG.
 さらに、上記実施の形態では、コンデンサ素子100は、誘電体フィルム上にアルミニウムを蒸着させた2枚の金属化フィルムを重ね、重ねた金属化フィルムを巻回または積層することで形成されたものであるが、これ以外にも、誘電体フィルムの両面にアルミニウムを蒸着させた金属化フィルムと絶縁フィルムとを重ね、これを巻回または積層することにより、これらコンデンサ素子100が形成されてもよい。 Furthermore, in the above-described embodiment, 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. Alternatively, 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.
 さらに、上記実施の形態では、コンデンサ(第1コンデンサ10A、第2コンデンサ10B)は、フィルムコンデンサであった。しかしながら、コンデンサ10A、10Bは、フィルムコンデンサ以外のコンデンサであってもよい。 Furthermore, in the above embodiment, the capacitors (first capacitor 10A, second capacitor 10B) were film capacitors. However, capacitors 10A and 10B may be capacitors other than film capacitors.
 この他、本発明の実施の形態は、特許請求の範囲に示された技術的思想の範囲内において、適宜、種々の変更が可能である。 In addition, the embodiments of the present invention can be appropriately modified in various ways within the scope of the technical ideas indicated in the scope of claims.
 なお、上記実施の形態の説明において「上方」「下方」等の方向を示す用語は、構成部材の相対的な位置関係にのみ依存する相対的な方向を示すものであり、鉛直方向、水平方向等の絶対的な方向を示すものではない。 In the description of the above embodiments, terms such as "upper" and "lower" indicate relative directions that depend only on the relative positional relationship of constituent members, and are vertical and horizontal. It does not indicate an absolute direction such as
 本発明は、各種電子機器、電気機器、産業機器、車両の電装等に使用されるコンデンサに有用である。 The present invention is useful for capacitors used in various electronic devices, electrical devices, industrial devices, vehicle electrical equipment, and the like.
 1 コンデンサモジュール
 2A 注型容器(型部材)
 2B 注型容器(型部材)
 10A 第1コンデンサ(コンデンサ)
 10B 第2コンデンサ(コンデンサ)
 100 コンデンサ素子
 101 端面
 102 周面
 110 電極
 200 バスバー
 220 接続端子部
 300A 第1保持部材(保持部材)
 300B 第1保持部材(保持部材)
 311 開口部
 320 第1連結部(連結部)
 330 第2連結部(連結部)
 340 固定部
 400 外装体
 400a 上面(一面)
1 capacitor module 2A casting container (mold member)
2B casting container (mold member)
10A First capacitor (capacitor)
10B Second capacitor (capacitor)
REFERENCE SIGNS LIST 100 capacitor element 101 end surface 102 peripheral surface 110 electrode 200 bus bar 220 connection terminal portion 300A first holding member (holding member)
300B first holding member (holding member)
311 opening 320 first connecting portion (connecting portion)
330 second connecting part (connecting part)
340 Fixed part 400 Exterior body 400a Upper surface (one surface)

Claims (9)

  1.  コンデンサにおいて、
     電極を有するコンデンサ素子と、
     前記電極に接続されるバスバーと、
     前記バスバーを保持する保持部材と、
     前記コンデンサ素子の全体と、前記バスバーおよび前記保持部材の一部とを被覆する外装体と、を備え、
     前記保持部材には、前記外装体から露出し、他の前記コンデンサの前記保持部材に連結される連結部が設けられる、
    ことを特徴とするコンデンサ。
    In a capacitor,
    a capacitor element having electrodes;
    a bus bar connected to the electrodes;
    a holding member that holds the busbar;
    an exterior body that covers the entire capacitor element and a part of the bus bar and the holding member;
    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 capacitor characterized by:
  2.  請求項1に記載のコンデンサにおいて、
     前記コンデンサ素子は、一対の端面と周面とを有し、
     前記電極は、それぞれの前記端面に形成され、
     前記バスバーは、それぞれの前記電極に対して設けられ、
     前記保持部材は、前記周面と対向するように配置される、
    ことを特徴とするコンデンサ。
    A capacitor according to claim 1, wherein
    The capacitor element has a pair of end faces and a peripheral face,
    the electrodes are formed on the respective end faces;
    The busbar is provided for each of the electrodes,
    The holding member is arranged to face the peripheral surface,
    A capacitor characterized by:
  3.  請求項1または2に記載のコンデンサにおいて、
     前記外装体は、直方体形状を有し、
     前記バスバーは、当該バスバーの一部が前記外装体の一面から露出して、前記外装体の外部に外部端子が接続される接続端子部を有し、
     前記連結部は、前記一面と平行な方向において、他の前記コンデンサの前記保持部材に連結される、
    ことを特徴とするコンデンサ。
    3. In the capacitor according to claim 1 or 2,
    The exterior body has a rectangular parallelepiped shape,
    a portion of the bus bar exposed from one surface of the exterior body and having a connection terminal portion to which an external terminal is connected to the exterior of the exterior body;
    the connecting portion is connected to the holding member of the other capacitor in a direction parallel to the one surface;
    A capacitor characterized by:
  4.  請求項1ないし3の何れか一項に記載のコンデンサにおいて、
     前記保持部材は、樹脂材料により形成され、
     前記コンデンサ素子は、一対の端面を有し、
     前記電極は、それぞれの前記端面に形成され、
     前記バスバーは、それぞれの前記電極に対して設けられ、前記保持部材にインサート成形される、
    ことを特徴とするコンデンサ。
    In the capacitor according to any one of claims 1 to 3,
    The holding member is made of a resin material,
    The capacitor element has a pair of end faces,
    the electrodes are formed on the respective end faces;
    The bus bar is provided for each of the electrodes and is insert-molded into the holding member.
    A capacitor characterized by:
  5.  請求項1ないし4の何れか一項に記載のコンデンサにおいて、
     前記保持部材には、当該保持部材と前記コンデンサ素子とが並ぶ方向に前記保持部材を貫通する開口部が設けられる、
    ことを特徴とするコンデンサ。
    In the capacitor according to any one of claims 1 to 4,
    The holding member is provided with an opening penetrating through the holding member in a direction in which the holding member and the capacitor element are aligned.
    A capacitor characterized by:
  6.  請求項5に記載のコンデンサにおいて、
     前記開口部の内壁面には、前記開口部の口径が前記コンデンサ素子から離れる方向に向かうに従って大きくなるテーパーが設けられる、
    ことを特徴とするコンデンサ。
    A capacitor according to claim 5, wherein
    An inner wall surface of the opening is provided with a taper in which the diameter of the opening increases in a direction away from the capacitor element,
    A capacitor characterized by:
  7.  請求項1ないし6の何れか一項に記載のコンデンサにおいて、
     前記保持部材には、外部装置に固定することが可能な固定部が設けられる、
    ことを特徴とするコンデンサ。
    A capacitor according to any one of claims 1 to 6,
    The holding member is provided with a fixing portion that can be fixed to an external device.
    A capacitor characterized by:
  8.  複数個の請求項1ないし7の何れか一項に記載のコンデンサが連結されることにより構成されるコンデンサモジュール。 A capacitor module configured by connecting a plurality of capacitors according to any one of claims 1 to 7.
  9.  連結部を有する保持部材に保持されたバスバーがコンデンサ素子の電極に接続されることにより形成されたコンデンサ素子ユニットを型部材に収容し、
     液相状態の樹脂を、当該樹脂に前記コンデンサ素子全体が浸漬し、前記樹脂から前記連結部が露出するように前記型部材内に注入し、
     注入された前記樹脂を硬化させて、硬化した前記樹脂が外装体として前記コンデンサ素子ユニットを前記連結部が露出した状態で被覆するコンデンサを作成し、
     複数個の前記コンデンサを前記連結部により連結する、
    ことを特徴とするコンデンサモジュールの製造方法。
    A capacitor element unit formed by connecting a bus bar held by a holding member having a connecting portion to electrodes of a capacitor element is accommodated in a mold member,
    injecting a resin in a liquid state into the mold member so that the entire capacitor element is immersed in the resin and the connecting portion is exposed from the resin;
    forming a capacitor in which the injected resin is cured, and the cured resin serves as an exterior body and covers the capacitor element unit with the connecting portion exposed;
    connecting a plurality of the capacitors by the connecting portion;
    A method of manufacturing a capacitor module, characterized by:
PCT/JP2021/048518 2021-02-19 2021-12-27 Capacitors, capacitor module, and method for manufacturing capacitor module WO2022176401A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023203246A1 (en) 2023-04-11 2024-10-17 Zf Friedrichshafen Ag Low-inductive intermediate circuit capacitor, power converter with such an intermediate circuit capacitor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109057U (en) * 1978-01-20 1979-08-01
JPS5591137U (en) * 1978-12-19 1980-06-24
JPS5914329U (en) * 1982-07-16 1984-01-28 日立コンデンサ株式会社 capacitor
JP2006216756A (en) * 2005-02-03 2006-08-17 Matsushita Electric Ind Co Ltd Case-molded capacitor and its manufacturing method
WO2012114748A1 (en) * 2011-02-24 2012-08-30 パナソニック株式会社 Capacitor module, and capacitor unit using same
JP2020035785A (en) * 2018-08-27 2020-03-05 トヨタ自動車株式会社 Capacitor module

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109057U (en) * 1978-01-20 1979-08-01
JPS5591137U (en) * 1978-12-19 1980-06-24
JPS5914329U (en) * 1982-07-16 1984-01-28 日立コンデンサ株式会社 capacitor
JP2006216756A (en) * 2005-02-03 2006-08-17 Matsushita Electric Ind Co Ltd Case-molded capacitor and its manufacturing method
WO2012114748A1 (en) * 2011-02-24 2012-08-30 パナソニック株式会社 Capacitor module, and capacitor unit using same
JP2020035785A (en) * 2018-08-27 2020-03-05 トヨタ自動車株式会社 Capacitor module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023203246A1 (en) 2023-04-11 2024-10-17 Zf Friedrichshafen Ag Low-inductive intermediate circuit capacitor, power converter with such an intermediate circuit capacitor

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