WO2015170589A1 - Condensateur - Google Patents

Condensateur Download PDF

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Publication number
WO2015170589A1
WO2015170589A1 PCT/JP2015/062179 JP2015062179W WO2015170589A1 WO 2015170589 A1 WO2015170589 A1 WO 2015170589A1 JP 2015062179 W JP2015062179 W JP 2015062179W WO 2015170589 A1 WO2015170589 A1 WO 2015170589A1
Authority
WO
WIPO (PCT)
Prior art keywords
auxiliary member
auxiliary
capacitor
sealing body
sealing plate
Prior art date
Application number
PCT/JP2015/062179
Other languages
English (en)
Japanese (ja)
Inventor
大蔵 千才
総芳 遠藤
芦野　宏次
隆広 吉田
Original Assignee
日本ケミコン株式会社
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
Publication date
Application filed by 日本ケミコン株式会社 filed Critical 日本ケミコン株式会社
Publication of WO2015170589A1 publication Critical patent/WO2015170589A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/02—Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/08—Housing; Encapsulation
    • H01G9/10—Sealing, e.g. of lead-in wires

Definitions

  • the present invention relates to a capacitor used for a mounting substrate or the like, for example, a capacitor suitable for a field where vibration resistance performance is required such as in-vehicle use.
  • a capacitor for the purpose of improving vibration resistance there is a capacitor in which a member having an auxiliary terminal different from this lead terminal is arranged on the outer surface of a sealing body through which a lead wire as a lead terminal is passed (for example, see Patent Document 1).
  • Patent Document 1 since it is a structure in which a member provided with an auxiliary terminal is fitted in a recessed groove formed in the sealing body, the structural strength of integrating the member and the sealing body In particular, there is a risk that the high vibration resistance required particularly in the case of in-vehicle applications may not be satisfied, and the member may fall off from the sealing body during the manufacturing process, affecting the manufacturing yield. There is a problem of affecting.
  • the present invention has been made paying attention to such a problem.
  • the integrated auxiliary terminal is used for fixing a capacitor and is resistant to vibration.
  • Another object of the present invention is to provide a capacitor capable of improving the performance and maintaining a high yield without the auxiliary member falling off during the capacitor manufacturing process.
  • the capacitor of the present invention is: In the capacitor having a lead wire that is drawn through the sealing body, an auxiliary member having an auxiliary terminal is provided on the outer surface of the sealing body, and the sealing body and the auxiliary member include the sealing body and the auxiliary member.
  • One is characterized in that a protruding portion protruding in a predetermined direction and a recess formed in the other of the sealing body and the auxiliary member along the shape of the protruding portion are fitted together.
  • the auxiliary member provided with the auxiliary terminal is firmly assembled with the sealing body by fitting the protruding portion of the protruding shape and the recessed portion of the recessed shape along this shape, so that as a part of the capacitor
  • the auxiliary terminal of the integrated auxiliary member for fixing the capacitor, not only can the vibration resistance of the capacitor be significantly improved, but also the auxiliary member does not fall off the sealing body during the manufacturing process of the capacitor. , Can maintain a high yield.
  • the capacitor of the present invention is The auxiliary member is characterized in that it is sandwiched between an outer surface of the sealing body and a crimped outer case. According to this feature, since the auxiliary member is sandwiched between the outer surface of the sealing body and the crimped outer case, it is possible to avoid the possibility that the auxiliary member falls off.
  • the capacitor of the present invention is
  • the auxiliary member includes an annular member having the auxiliary terminal and the protruding portion, and a stepped portion having the hollow portion that can be assembled with the annular member is formed on the outer surface of the sealing body. It is characterized by being.
  • the auxiliary member made of an annular member is provided with a protruding portion with a protruding shape, so that the protruding portion functions as a rib, so that the structural strength of the auxiliary member can be increased and further formed on the outer surface of the sealing body.
  • the auxiliary member can be easily positioned by assembling to the stepped portion.
  • the capacitor of the present invention is A plurality of the step portions are formed on the outer surface of the sealing body, a groove portion is formed between the adjacent step portions, and the auxiliary terminal is fitted in the groove portion. It is said. According to this feature, the auxiliary terminal can be supported by the groove portion by fitting the auxiliary terminal in the groove portion between the step portions, and the structural strength can be increased.
  • the capacitor of the present invention is The peripheral portion and the front end surface of the stepped portion are continuous through a curved surface portion. According to this feature, when the auxiliary member is pressed and inserted into the sealing body, it is possible not only to avoid the possibility of damaging the peripheral edge of the stepped portion of the sealing body at the inner peripheral edge of the auxiliary member, but also at the time of manufacturing the sealing body. In addition, the sealing body can be easily punched.
  • the capacitor of the present invention is A plurality of sets of the protruding portion and the recessed portion are provided in the circumferential direction of the sealing body. According to this feature, by providing a plurality of sets of protrusions and depressions in the circumferential direction of the sealing body, uneven distribution of fitting locations can be prevented and dispersed, and the assembly strength of the entire auxiliary member can be improved.
  • the capacitor of the present invention is
  • the auxiliary member includes a plurality of auxiliary terminals. According to this feature, the vibration resistance of the capacitor can be further improved by using a plurality of auxiliary terminals integrated as part of the capacitor for fixing the capacitor.
  • FIG. 6 is a plan view showing an auxiliary member in Example 3.
  • 10 is a plan view showing a sealing plate in Example 3.
  • FIG. 6 is a plan view showing an auxiliary member in Example 3.
  • the electrolytic capacitor 5 is composed of an anode foil and a rough surface formed by electrochemically roughening a high-purity aluminum foil and then anodizing to form a dielectric oxide film.
  • Capacitor element 1 constituted by connecting lead wires (not shown) to the formed cathode aluminum foil and winding it through a separator is attached to a bottomed cylindrical (cylindrical) outer case 2 together with a driving electrolyte.
  • the capacitor body is housed and sealed, and a sealing plate 4 as a sealing body of the present invention is inserted into the open end of the case 2 and crimped and sealed.
  • the lead wire drawn through the through hole 6 formed in the sealing plate 4 is fixed to the outer surface of a mounting board (not shown) by soldering or the like.
  • the capacitor body of the electrolytic capacitor 5 is fitted with an auxiliary member 10 having a substantially annular plate shape that is assembled to the outer surface of the sealing plate 4. It is fixed to a mounting board (not shown) via the auxiliary member 10.
  • the auxiliary member 10 is formed of an annular member having an auxiliary terminal 10b protruding outward, an outer surface 4f of the sealing plate 4 assembled as described later, and a bent portion 2b formed at the opening end of the outer case 2. Is provided in the electrolytic capacitor 5.
  • the auxiliary member 10 has a function of improving the vibration resistance of the electrolytic capacitor 5 by fixing the auxiliary terminal 10b to a housing or a mounting substrate (not shown).
  • the auxiliary member 10 is a plate-shaped annular member having a substantially circular outer peripheral edge and penetrating the inner peripheral side, and a protrusion protruding in the inner diameter direction on the inner peripheral edge. Part 10a is formed.
  • the protruding portion 10a of the present embodiment protrudes in a substantially L shape in plan view, and is formed at four locations spaced apart at substantially equal intervals in the circumferential direction. More specifically, as shown in FIG. 2 (a), the four protruding portions 10a of the present embodiment are formed such that opposing side portions of the adjacent protruding portions 10a are formed in parallel, and are opposed in the circumferential direction.
  • the protruding portions 10a are positioned so as to be substantially point-symmetric with respect to the virtual circle center point O of the annular member, and are positioned substantially symmetrical with respect to the virtual left-right center line L passing through the circle center point O. It is formed to do.
  • concave edges 10c, 10c having a relatively gentle curvature are formed on the inner peripheral edge between the projecting portions 10a facing in the vertical direction in the figure, and facing in the horizontal direction in the figure.
  • Concave edges 10d and 10d having a larger curvature than the concave edge 10c are formed on the inner peripheral edge between the protrusions 10a.
  • the auxiliary terminal 10b of the present embodiment has a proximal end extending from one concave edge 10c in the inner diameter direction, continuously bent, and a distal end extending upward. It consists of one provided terminal, and the front end side of the auxiliary terminal 10b can be connected to a member to be fixed such as a housing or a mounting substrate by welding or soldering.
  • the auxiliary member 10 and the auxiliary terminal 10b are, of course, not in electrical contact with the capacitor element 1 of the electrolytic capacitor 5 and the lead wire (not shown), and the vibration resistance of the electrolytic capacitor 5 is improved. Therefore, it is physically assembled to the sealing plate 4 and the outer case 2.
  • the auxiliary member 10 of the present embodiment is made of a metal material whose surface is tin-plated, the material of the auxiliary member is not necessarily limited to the above, and has a predetermined rigidity that can contribute to improving the vibration resistance of the electrolytic capacitor 5. That's fine.
  • each step portion 4c includes a recessed portion 4a that is recessed in a substantially L shape in a plan view in the inner diameter direction so as to follow the shape of the protruding portion 10a of the auxiliary member 10 described above.
  • the groove part 4b is formed by the both inner wall parts which the adjacent step parts 4c oppose. The outer peripheral edges of these four step portions 4 c are formed along the inner peripheral edge of the sealing plate 4.
  • the outer wall portion 4d which is a peripheral portion facing the outer diameter side of the stepped portion 4c, gradually extends toward the outer diameter side from the outer surface 4f of the sealing plate 4 toward the tip end surface 4e of the stepped portion 4c. It extends in a tapered shape. More specifically, the outer wall portion 4d is formed such that the outer surface 4f side of the sealing plate 4 has a smaller diameter than the inner peripheral edge of the auxiliary member 10, and the tip surface 4e side of the stepped portion 4c has a larger diameter than the inner peripheral edge of the auxiliary member 10. In order to form, it extends in a tapered shape with a predetermined inclination angle ⁇ .
  • the front end surface 4e of the stepped portion 4c is extended in a tapered shape so as to be separated from the outer surface of the sealing plate 4 from the inner diameter side toward the outer diameter side, and the front end surface 4e and the outer wall portion 4d are compared. It is continuously formed through a sharply sharp corner 4g.
  • the sealing plate 4 of the present embodiment is made of a rubber material, but the material of the sealing plate is not necessarily limited to the above, and may be any material as long as it has an insulating property and can be elastically deformed.
  • the outer wall portion 4d of the stepped portion 4c is formed such that the front end surface 4e side is larger in diameter than the inner peripheral edge of the auxiliary member 10, but the auxiliary member 10 is the sealing plate 4.
  • the outer peripheral surface of the auxiliary member 10 is temporarily elastically deformed to have a small diameter by a pressing force toward the outer surface of the auxiliary member 10, so that the inner peripheral edge of the auxiliary member 10 passes through the distal end surface 4 e side of the outer wall portion 4 d of the stepped portion 4 c.
  • the auxiliary member 10 is assembled to the sealing plate 4 by contacting the outer surface 4f.
  • the protrusions 10 a of the auxiliary member 10 are concavo-convexly fitted to the recesses 4 a of the sealing plate 4, and the proximal end side of the auxiliary terminal 10 b is fitted in the groove 4 b.
  • the outer wall portion 4d of the stepped portion 4c is elastically restored to have a larger diameter at the front end surface 4e side than the inner peripheral edge of the auxiliary member 10.
  • the outer wall portion 4d which is the peripheral portion of the step portion 4c is formed so as to protrude in a taper shape in the outer diameter direction from the inner peripheral edge of the auxiliary member 10, so that the step portion 4c of the sealing plate 4 is assembled. Since the auxiliary member 10 is locked to the outer wall portion 4d of the stepped portion 4c protruding in a tapered shape, the auxiliary member 10 can be kept in the assembled state without being detached from the sealing plate 4.
  • the sealing plate 4 to which the auxiliary member 10 is assembled is disposed at the open end of the outer case 2, and the outer peripheral surface of the outer case 2 is crimped to provide a crimped portion 2 a and the outer case 2 is opened.
  • a bent portion 2b is provided in which the open end sandwiches the auxiliary member 10 between the sealing plate 4 and the assembly of the auxiliary member 10 to the electrolytic capacitor 5 is completed.
  • the auxiliary member 10 including the auxiliary terminal 10b is firmly assembled to the sealing plate 4 by fitting the protruding portion 10a with the protruding portion 10a along the shape. Therefore, by using the auxiliary terminal 10b of the auxiliary member 10 integrated as a part of the electrolytic capacitor 5 for fixing the electrolytic capacitor 5, not only the vibration resistance of the electrolytic capacitor 5 can be remarkably improved but also the electrolytic A high yield can be maintained without the auxiliary member 10 falling off the sealing plate 4 during the manufacturing process of the capacitor 5.
  • the protruding portion 10a having a protruding shape and the recessed portion 4a formed along the shape of the protruding portion abut a wide range along the substantially entire periphery of the protruding portion and the recessed portion.
  • the projecting dimension of the projecting part 10a is larger than the dimension of the indented part 4a formed in the sealing plate 4 made of a rubber material in the natural state.
  • the dent 4a is elastically deformed in the direction of the dent by the protrusion of the protrusion 10a, and the elastic restoring force of the dent 4a resulting from this acts on the protrusion 10a.
  • the protrusion 10a and the recess 4a are firmly fitted.
  • auxiliary member 10 is sandwiched between the outer surface 4f of the sealing plate 4 and the crimped outer case 2, it is possible to avoid the possibility that the auxiliary member 10 falls off. Furthermore, since the protrusion 10a of the auxiliary member 10 and the recess 4a of the sealing plate 4 are fitted in the radial direction of the auxiliary member 10, the auxiliary member 10 is positioned in the circumferential direction.
  • the protruding portion 10a having a shape in which the auxiliary member 10 made of an annular member protrudes, the protruding portion 10a functions as a rib, so that the structural strength of the auxiliary member 10 can be increased, and the outer surface 4f of the sealing plate 4 is further increased.
  • the auxiliary member 10 can be easily positioned by being assembled to the step 4c formed in the above.
  • the auxiliary member 10 is formed with the concave edge 10d having a large curvature, the creepage distance between the sealing plate 4 and the through hole 6 from which the lead wire is drawn can be increased. Therefore, even if the auxiliary member 10 is formed of a metal member, the creepage distance from the lead wire can be maintained, and a short circuit between the lead wire and the auxiliary member 10 can be further prevented. Further, in a small electrolytic capacitor having a small diameter, the distance between the lead wire and the auxiliary member 10 is further shortened, and there is a risk of short circuit between the lead wire and the auxiliary member 10. Since the creeping distance can be increased by making the close portion have a large curvature, it is possible to use a metal material having high rigidity as the auxiliary member 10.
  • the front end surface 4e of the stepped portions 4c, 4c ′ is extended in a tapered shape so as to be separated from the outer surface of the sealing plate 4 from the inner diameter side toward the outer diameter side. Even when the internal pressure of the capacitor 5 rises and the central portion of the sealing plate 4 is larger and swells toward the housing or the mounting substrate when arranged facing the mounting substrate or the like, the fixing property can be maintained.
  • the capacitor 5 vaporizes an organic solvent constituting the electrolytic solution impregnated in the capacitor element 1 due to a temperature rise, and generates hydrogen gas by an electrochemical reaction. Since this occurs, the internal pressure of the outer case 2 increases. Due to this internal pressure, the sealing plate 4 may swell outward.
  • the auxiliary member 10 disposed on the outer periphery of the sealing plate 4 has high rigidity, the outer peripheral side of the sealing plate 4 is prevented from being swollen while the central portion of the sealing plate 4 is Since the auxiliary member 10 having high rigidity is not disposed, the auxiliary member 10 is likely to swell.
  • auxiliary terminal 10b can be supported by the groove portion 4b by fitting the auxiliary terminal 10b into the groove portion 4b between the step portions 4c, 4c, and the structural strength can be increased.
  • the number of auxiliary terminals 10b is only one as in the first embodiment, and can be used as a criterion for determining the polarity by fitting in the groove formed between the through holes 6 and 6. Furthermore, when it is set as the structure which sets the fixing position of the auxiliary terminal 10b by inserting the auxiliary terminal 10b in the hole previously provided in the mounting board, it is only one auxiliary terminal 10b, the hole provided in the mounting board, and the auxiliary terminal By using it for alignment with 10b, it is possible to avoid the possibility that the lead wires of each polarity are erroneously connected to the opposite polarity of the mounting board.
  • the outer wall portion 4d and the front end surface 4e of the step portion 4c ′ of the sealing plate 4 ′ are rounded curved surface portions 4h having a predetermined curvature. May be continuous.
  • the auxiliary member 20 has three protrusions 10a protruding in a substantially L shape in plan view and spaced apart at uneven intervals in the circumferential direction. Is formed. More specifically, as shown in FIG. 5 (a), the three protruding portions 10a of the present embodiment are respectively formed at the upper right portion, the lower right portion, and the lower left portion of the inner peripheral edge of the auxiliary member 20 in plan view. In addition, the upper left part of the inner peripheral edge is formed in a concave part 20a where no protruding part exists. That is, the three protruding portions 10a of the auxiliary member 20 are formed unevenly in the circumferential direction.
  • the sealing plate 14 of the present embodiment has the stepped portions 4c provided with the recessed portions 4a at three positions corresponding to the arrangement positions of the three protruding portions 10a of the auxiliary member 20, and the auxiliary member 20 It has a step portion 14c having a convex outer wall portion 14a corresponding to the concave portion 20a. That is, the three recessed portions 4a of the sealing plate 14 are formed unevenly in the circumferential direction.
  • the auxiliary terminals 10b and 10b of the present embodiment extend in the inner diameter direction from the concave edges 10c and 10c opposite to each other on the base end side, and are continuously bent. It consists of two terminals with the tip side extended upward.
  • the plurality of sets of the protruding portions 10 a and the recessed portions 4 a are provided to be spaced apart from each other in the circumferential direction of the sealing plate 14, thereby positioning the auxiliary member 20 in the circumferential direction with respect to the sealing plate 14. Can be assembled.
  • auxiliary terminals 10b, 10b integrated as a part of the electrolytic capacitor 5 for fixing the electrolytic capacitor 5 the vibration resistance of the electrolytic capacitor 5 can be further improved.
  • the auxiliary member 20 of the second embodiment is formed with a plurality of protruding portions 10a spaced apart from each other in the circumferential direction and provided with a plurality of auxiliary terminals 10b.
  • the plurality of projecting portions 10a may be formed at uneven intervals in the circumferential direction, and only one auxiliary terminal 10b may be provided, or the auxiliary member may have a plurality of projecting portions 10a in the circumferential direction.
  • the auxiliary terminals 10b may be provided with a plurality of auxiliary terminals 10b that are spaced apart at substantially equal intervals.
  • the auxiliary member 30 of the present embodiment has protrusions 30 a that bulge and protrude in a substantially bulbous shape in plan view and are spaced apart at substantially equal intervals in the circumferential direction. The place is formed. More specifically, as shown in FIG. 7, the protruding portion 30a of the present embodiment bulges in the circumferential direction from the protruding base end portion (width dimension a) toward the protruding intermediate portion (width dimension b). It protrudes in the inner diameter direction, and further protrudes in a tapered shape from the protruding intermediate portion toward the protruding tip portion.
  • the four projecting portions 30a of the present embodiment are arranged so that the projecting portions 30a facing each other in the circumferential direction are positioned substantially symmetrical with respect to the virtual circle center point O of the annular member, and It is formed so as to be positioned substantially symmetrical with respect to a virtual left and right center line L passing through the point O.
  • concave edges 10c and 10c having a relatively gentle curvature are formed on the inner peripheral edge between the projecting portions 30a facing in the vertical direction in the figure, and in the horizontal direction in the figure.
  • Concave edges 10d and 10d having a larger curvature than the concave edge 10c are formed on the inner peripheral edge between the protruding portions 10a facing each other.
  • the concave edges 10d and 10d having a large curvature are formed in a portion located in the outer peripheral direction of the through hole 6 to increase the creeping distance between the lead wire and the auxiliary member 30. Therefore, a short circuit can be suppressed, and a metal material having high rigidity can be used as the auxiliary member 30.
  • each step portion 4c includes a recessed portion 34a that is recessed in a substantially U shape in a plan view in the inner diameter direction at a position corresponding to the protruding portion 30a of the auxiliary member 30 described above.
  • the groove part 4b is formed by the both inner wall parts which the adjacent step parts 4c oppose. The outer peripheral edges of these four step portions 4 c are formed along the inner peripheral edge of the sealing plate 34.
  • the recess 34a of the present embodiment has inner side walls 34b, 34b facing substantially parallel in plan view, and these inner sides 34b, 34b are in a natural state of the sealing plate 34 made of a rubber material. Then, they are opposed to each other with a separation width c that is larger than the width a of the protruding base end of the protruding portion 30a and smaller than the width b of the protruding intermediate portion of the protruding portion 30a.
  • the outer wall portion 34d which is a peripheral portion facing the outer diameter side of the stepped portion 4c, extends vertically from the outer surface 4f of the sealing plate 34 toward the tip end surface 4e of the stepped portion 4c. It is extended. Further, the front end surface 4e of the stepped portion 4c extends in a tapered shape so as to be separated from the outer surface of the sealing plate 34 from the inner diameter side toward the outer diameter side.
  • the front end surface 4e and the outer wall portion 34d are predetermined. It is continuously formed through a curved surface with a rounded curvature.
  • the front end surface 4e of the stepped portion 4c extends from the inner diameter side to the outer diameter side in a tapered shape so as to be separated from the outer surface of the sealing plate 34, thereby forming a recess in the central portion of the sealing plate 34, Similar effects as described in Example 1 can be obtained. That is, when the capacitor 5 is disposed so that the sealing plate 4 faces the housing or the mounting substrate, even when the internal pressure of the capacitor 5 rises, the depression at the center of the sealing plate 34 absorbs the swelling. A force that separates the sealing plate 34 from the housing or the mounting substrate due to the bulge does not act, and the fixing property can be stabilized.
  • the assembly of the auxiliary member 30 to the outer surface 4f of the sealing plate 34 will be described. After aligning the auxiliary member 30 and the sealing plate 34 in the circumferential direction so that each protrusion 30a of the auxiliary member 30 faces the corresponding recess 34a of the step 4c of the sealing plate 34, the auxiliary member 30 is sealed. It presses and inserts toward the outer surface 4f of the board 34.
  • the inner side walls 34b, 34b of the recess 34a are, in the natural state of the sealing plate 34 made of a rubber material, the width of the protruding intermediate portion of the protruding portion 30a of the auxiliary member 30.
  • the separation width c is shorter than the dimension b, the inner peripheral edge of the auxiliary member 30 extends along the outer wall portion 4d of the step portion 4c by the pressing force of the auxiliary member 30 toward the outer surface of the sealing plate 34.
  • each protrusion 30a of the auxiliary member 30 is concavo-convexly fitted to each recess 34a of the sealing plate 34, and the proximal end side of the auxiliary terminal 10b is fitted in the groove 4b.
  • the inner side walls 34b, 34b of the recess 34a are elastically deformed so as to be widened to the width dimension b along the projecting intermediate part of the projecting part 30a of the auxiliary member 30, and the inner side walls 34b, 34b are opened on the outer diameter side.
  • the portion is elastically restored to a separation width dimension c that is shorter than the width dimension b of the projection intermediate portion of the projection 30 a of the auxiliary member 30.
  • each recess 34a of the sealing plate 34 has the width dimension b of the inner walls 34b and 34b separated from each other along the projecting intermediate part of the projecting part 30a as the projecting part 30a of the auxiliary member 30 is fitted. While elastically deforming so as to widen, the opening portions of the inner side walls 34b, 34b are elastically restored to the separation width dimension c, so that the auxiliary member 30 is maintained in a strong assembled state without being detached from the sealing plate 34. Can do.
  • the protruding portion 30a and the recessed portion 34a are in point contact. Therefore, in the process of incorporating the auxiliary member 30 into the sealing plate 34, even when an inclination occurs in the vertical direction, the contact between the auxiliary member 30 and the stepped portion 4 c is suppressed because of point contact, and the outer surface of the sealing plate 34. It is possible to correct the tilt during the process of pressing towards 4f. Further, since the friction is small, it is possible to avoid the possibility that the auxiliary member 30 scrapes the inner wall portion 34b of the stepped portion 4c in the assembling process.
  • the sealing plate 4 When the sealing plate 4 is cut, a small piece of the sealing plate 4 cut between the outer surface 4f of the sealing plate 4 and the auxiliary member 30 may be sandwiched, and the auxiliary member 30 may not be stable.
  • the auxiliary member 30 and the sealing plate 4 are fixed by point contact as in the third embodiment, the friction between the auxiliary terminal 30 and the sealing plate 4 can be reduced, and the generation of small pieces of the sealing plate 4 can be suppressed. Fixability of the member 30 to the sealing plate 4 can be stabilized.
  • the sealing board 4 and 34 has the hollow parts 4a and 34a which follow the protrusion shape of this protrusion parts 10a and 30a.
  • the sealing body may include a protruding portion
  • the auxiliary member may include a hollow portion that follows the protruding shape of the protruding portion
  • the auxiliary member may include the protruding portion and While providing a hollow part, the sealing body may be provided with both the hollow part and the protrusion part which follow the shape of the said protrusion part and a hollow part.
  • protrusion parts 10a and 30a which protrude in an internal diameter direction and the hollow parts 4a and 34a dented in the internal diameter direction along the protrusion shape of these protrusion parts 10a and 30a are formed, Further, a protruding portion protruding in the outer diameter direction and a hollow portion recessed in the outer diameter direction along the shape of the protruding portion protruding in the outer diameter direction may be formed.
  • a gap may be provided between the concave edge 10c of the auxiliary members 10 and 30 and the 4d and 34d of the stepped portions 4c and 14c.
  • Capacitor element 2 Exterior case 4, 4 'Sealing plate (sealing body) 4a hollow part 4b groove part 4c, 4c 'step part 4d outer wall part (peripheral part) 4e Front end surface 4f Outer surface 4g Corner portion 4h Curved portion 5 Electrolytic capacitor 6 Through hole 10 Auxiliary member 10a Protruding portion 10b Auxiliary terminals 10c and 10d Concave edge 14 Sealing plate (sealing body) 14c Step part 14d Outer wall part 20 Auxiliary member 20a Concave part 30 Auxiliary member 30a Protruding part 34 Sealing plate (sealing body) 34a hollow part 34b inner wall 34d outer wall part

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

La présente invention concerne un condensateur dans lequel un élément auxiliaire qui est pourvu d'une borne auxiliaire est solidement assemblé, ce qui permet d'améliorer la résistance aux vibrations à l'aide de la borne auxiliaire intégrée à des fins de fixation du condensateur, et, en outre, un rendement élevé peut être maintenu sans déposer l'élément auxiliaire durant des étapes de fabrication du condensateur. Dans un condensateur (5) comprenant une ligne de sortie qui est faite sortir par pénétration d'un corps d'étanchéité (4), un élément auxiliaire (10) qui est pourvu d'une borne auxiliaire (10b) est disposé sur une surface extérieure (4f) du corps d'étanchéité (4), et le corps d'étanchéité (4) et l'élément auxiliaire (10) sont disposés de manière qu'une section saillante (10a), qui est formée sur l'un du corps d'étanchéité (4) et de l'élément auxiliaire (10) et qui fait saillie dans une direction prédéterminée, et une section renfoncée (4a), qui est formée sur l'autre du corps d'étanchéité (4) et de l'élément auxiliaire (10) et qui est renfoncée en épousant la forme de la section saillante (10a), soient emboîtées l'une dans l'autre.
PCT/JP2015/062179 2014-05-07 2015-04-22 Condensateur WO2015170589A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-095798 2014-05-07
JP2014095798A JP6340900B2 (ja) 2014-05-07 2014-05-07 コンデンサ

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WO2015170589A1 true WO2015170589A1 (fr) 2015-11-12

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Publication number Priority date Publication date Assignee Title
DE102019119538A1 (de) 2019-07-18 2021-01-21 Tdk Electronics Ag Kondensator
JP2023068270A (ja) * 2021-11-02 2023-05-17 日本ケミコン株式会社 蓄電デバイスおよびその製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS3812051Y1 (fr) * 1960-12-26 1963-06-18
JPS55154540U (fr) * 1979-04-23 1980-11-07
EP2169695A1 (fr) * 2008-09-26 2010-03-31 Epcos Ag Condensateur doté d'un support de condensateur et agencement de montage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS3812051Y1 (fr) * 1960-12-26 1963-06-18
JPS55154540U (fr) * 1979-04-23 1980-11-07
EP2169695A1 (fr) * 2008-09-26 2010-03-31 Epcos Ag Condensateur doté d'un support de condensateur et agencement de montage

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