WO2020188796A1 - Unité de borne à connexion rapide et disjoncteur - Google Patents

Unité de borne à connexion rapide et disjoncteur Download PDF

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Publication number
WO2020188796A1
WO2020188796A1 PCT/JP2019/011747 JP2019011747W WO2020188796A1 WO 2020188796 A1 WO2020188796 A1 WO 2020188796A1 JP 2019011747 W JP2019011747 W JP 2019011747W WO 2020188796 A1 WO2020188796 A1 WO 2020188796A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
quick
circuit breaker
opening
terminal unit
Prior art date
Application number
PCT/JP2019/011747
Other languages
English (en)
Japanese (ja)
Inventor
純一 菅原
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2019/011747 priority Critical patent/WO2020188796A1/fr
Priority to JP2021506095A priority patent/JP7069402B2/ja
Priority to CN202010172418.6A priority patent/CN111725035A/zh
Priority to CN202020304024.7U priority patent/CN211555815U/zh
Publication of WO2020188796A1 publication Critical patent/WO2020188796A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/20—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member

Definitions

  • the present invention relates to a quick-connect terminal unit and a circuit breaker attached to a wiring breaker.
  • Patent Document 1 discloses a quick-connect terminal unit attached to a wiring breaker whose conductive terminal is a screw terminal.
  • Such a quick-connect terminal unit has a configuration in which an insulating case portion in which a member such as a spring is arranged is covered with an insulating cover portion. The cover portion is fixed to the case portion by, for example, a rivet.
  • the case portion is provided with a rivet hole which is a hole for passing the rivet. Since the rivet hole is provided at a position where the insulation distance determined by the standard can be secured in order to secure the insulation property with the energized portion, the outer shape of the quick-connect terminal unit becomes larger than that when there is no rivet. In some cases.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a quick-connect terminal unit to which a cover portion can be attached to a case portion without using rivets.
  • the quick-connect terminal unit of the present invention includes a terminal portion, an insulating case portion, and an insulating cover portion.
  • the terminal portion is connected to the screw terminal portion on the power supply side or load side of the circuit breaker at the tip end side and is provided with a spring at the base end side.
  • the case portion is provided with a first opening into which the terminal portion is inserted and a second opening portion in which the tip end side of the terminal portion is projected to the outside.
  • the cover portion has a first guide hole for guiding the insertion of the electric wire into the case portion and a second guide hole for guiding the insertion of the tool for removing the electric wire from the inside of the case portion into the case portion. It is engaged with the case part in the closed state.
  • the cover portion can be attached to the case portion without using rivets.
  • External perspective view of the circuit breaker according to the first embodiment of the present invention An exploded perspective view of the circuit breaker according to the first embodiment.
  • External perspective view of the quick-connect terminal unit main body according to the first embodiment An exploded perspective view of the main body of the quick-connect terminal unit according to the first embodiment.
  • External perspective view of the terminal portion according to the first embodiment External perspective view of the case portion of the quick-connect terminal unit according to the first embodiment. Sectional view taken along the line VII-VII shown in FIG. The figure for demonstrating the method of assembling the terminal part in the case part of the quick-connect terminal unit which concerns on Embodiment 1.
  • External perspective view of the cover portion according to the first embodiment External perspective view of the terminal cover according to the first embodiment External perspective view of the terminal cover according to the first embodiment Sectional view taken along line XII-XII shown in FIG. A cross-sectional view taken along the line XII-XII shown in FIG. 1 in a state where the terminal cover is not attached in the circuit breaker according to the first embodiment.
  • External perspective view showing the positional relationship between the quick-connect terminal unit main body and the terminal cover in a state where the quick-connect terminal unit is attached to the circuit breaker according to the first embodiment.
  • FIG. 1 is an external perspective view of the circuit breaker according to the first embodiment of the present invention.
  • the circuit breaker 100 according to the first embodiment includes a circuit breaker 10 that cuts off an electric circuit, and two quick-connect terminals attached to the power supply side and the load side of the circuit breaker 10, respectively. It includes a unit 20.
  • the quick-connect terminal unit 20 attached to the power supply side of the circuit breaker 10 and the quick-connect terminal unit 20 attached to the load side of the circuit breaker 10 have the same configuration.
  • the circuit breaker 10 is, for example, a circuit breaker for the purpose of overcurrent protection or short-circuit current protection in low-voltage power distribution equipment, and is also called a CP (Circuit Protector). Such a circuit breaker 10 has an opening / closing mechanism (not shown) that changes the electric circuit from the closed state to the open state when an overcurrent or a short-circuit current flows through the connected electric circuit.
  • the circuit breaker 10 is a one-pole circuit breaker, but it may be a two-pole circuit breaker or a three-pole circuit breaker.
  • FIG. 2 is an exploded perspective view of the circuit breaker according to the first embodiment.
  • the circuit breaker 10 includes a circuit breaker main body 11 that opens and closes an electric circuit, and a movable claw 12 that is movably attached to the circuit breaker main body 11.
  • the movable claw 12 is used to pull a spring that gives a holding force to an IEC (International Electrotechnical Commission) rail (not shown).
  • IEC International Electrotechnical Commission
  • a fixed claw 11a is formed on the circuit breaking device main body 11, and the circuit breaking device main body 11 is detachably attached to the IEC by the fixed claw 11a and the movable claw 12.
  • the circuit breaker 10 includes a screw terminal portion 13 provided on the power supply side of the circuit breaker main body 11 and a screw terminal portion 14 provided on the load side of the circuit breaker main body 11.
  • the screw terminal portion 13 on the power supply side is hidden behind the housing of the circuit breaker main body 11 and is invisible.
  • the screw terminal portion 13 is connected to a power source (not shown) via an electric wire
  • the screw terminal portion 14 is connected to a load (not shown) via an electric wire.
  • the quick-connect terminal unit 20 includes a quick-connect terminal unit main body 21 connected to the power supply side or the load side of the circuit breaker 10.
  • the quick-connect terminal unit main body 21 is provided with a Y-shaped terminal 33, and the terminal 33 is tightened to the screw terminal portion 13 of the circuit breaker 10 by the terminal screw 15, so that the terminal 33 becomes a power source (not shown). It is electrically connected. Further, the terminal 33 is tightened to the screw terminal portion 14 of the circuit breaker 10 by the terminal screw 16, so that the terminal 33 is electrically connected to a load (not shown).
  • the circuit breaker 10 is provided with an exhaust path 11b on the load side for discharging the internal pressure at the time of interruption to the outside of the circuit breaker 10.
  • the quick-connect terminal unit main body 21 faces the exhaust path 11b so that the quick-connect terminal unit main body 21 does not block the exhaust path 11b when the quick-connect terminal unit main body 21 is attached to the circuit breaker 10.
  • a plurality of exhaust holes 48 are formed at the positions where the exhaust holes 48 are formed.
  • the quick-connect terminal unit main body 21 is formed with a hole 49 into which the above-mentioned movable claw 12 is inserted when the circuit breaker 10 is removed from the IEC rail (not shown). As a result, the circuit breaker 10 can be removed from the IEC rail (not shown) even when the quick connection terminal unit 20 is attached to the load side of the circuit breaker 10.
  • the quick-connect terminal unit 20 includes an insulating terminal cover 22 that closes the screw terminal portion 13 on the power supply side or the screw terminal portion 14 on the load side from above.
  • the terminal cover 22 is provided with a convex portion 73a. Round holes 11c are formed on the power supply side and the load side of the circuit breaker 10, and the terminal cover 22 is attached to the circuit breaker 10 by inserting the convex portion 73a of the terminal cover 22 into the round holes 11c. ..
  • FIG. 3 is an external perspective view of the main body of the quick-connect terminal unit according to the first embodiment.
  • FIG. 4 is an exploded perspective view of the main body of the quick-connect terminal unit according to the first embodiment.
  • the quick-connect terminal unit main body 21 has a conductive terminal portion 30 connected to the screw terminal portion 13 on the power supply side or the screw terminal portion 14 on the load side, and the tip of the terminal portion 30. It includes an insulating case portion 40 for accommodating the terminal portion 30 inside with the side protruding outward, and an insulating cover portion 50 for closing the upper portion of the case portion 40.
  • the terminal portion 30 is inserted from the first opening 61 provided at the upper part of the case portion 40. Then, as shown in FIG. 3, the terminal portion 30 is incorporated into the case portion 40 with the tip end side protruding from the second opening 62 provided on the side portion of the case portion 40.
  • the cover portion 50 is inserted into the first opening 61 of the case portion 40 with the terminal portion 30 arranged in the case portion 40, and is fitted into the upper portion of the case portion 40. As a result, the upper portion of the case portion 40 is closed by the cover portion 50.
  • FIG. 5 is an external perspective view of the terminal portion according to the first embodiment.
  • the terminal portion 30 includes a conductive terminal member 31 and two conductive springs 32.
  • the terminal member 31 is formed by, for example, punching and bending a metal plate.
  • the terminal member 31 includes a Y-shaped terminal 33 provided on the tip side and a terminal base 34 continuous with the base end of the terminal 33. As described above, the Y-shaped terminal 33 is tightened to the screw terminal portion 13 on the power supply side or the screw terminal portion 14 on the load side.
  • the terminal base 34 has a pair of upright portions 34a provided at a position sandwiching the base end of the terminal 33 on the tip side and rising upward, and two holes 34b arranged adjacent to each other.
  • Each spring 32 is formed in a U shape and is attached to the terminal base 34 in a state of being inserted into the corresponding hole 34b of the two holes 34b.
  • each of the pair of upright portions 34a has a function of holding the corresponding spring 32 of the two springs 32.
  • the terminal base 34 has a base end 34c bent in a V shape so as to spread in different directions from each other.
  • FIG. 6 is an external perspective view of a case portion of the quick-connect terminal unit according to the first embodiment.
  • FIG. 7 is a cross-sectional view taken along the line VII-VII shown in FIG.
  • the case portion 40 has a storage portion 60 formed by the side wall portions 41, 42, 43, 44 and the partition wall portion 45, and a first storage portion 60 formed on the upper portion of the storage portion 60. It has an opening 61 and a second opening 62 formed on the side of the storage portion 60.
  • the upper part of the storage part 60 is the upper part of the case part 40.
  • the side portion of the storage portion 60 is a side portion of the case portion 40.
  • case portion 40 projects upward from a pair of engaging portions 46 that protrude from the side wall portions 42 and 43 and engage with the circuit breaker main body 11 and one end of the partition wall portion 45, and passes through the second opening 62. It has a pair of projecting portions 47 that face each other. Further, the side wall portion 41 has a third opening 41a formed in the central portion and a protruding portion 41b protruding downward.
  • FIG. 8 is a diagram for explaining a method of incorporating the terminal portion of the quick-connect terminal unit according to the first embodiment into the case portion.
  • the terminal portion 30 is sequentially inserted into the first opening 61 formed in the upper part of the case portion 40 from the tip of the terminal portion 30, and the tip of the terminal portion 30 is inserted into the second opening 62. Will be done. Then, the terminal portion 30 is arranged in the storage portion 60 of the case portion 40 so that the tip thereof projects outward from the second opening 62.
  • the terminal portion 30 when the terminal portion 30 is assembled into the case portion 40, the upright portion 34a formed on the terminal portion 30 comes into contact with the protruding portion 47 formed on the partition wall portion 45. , The base end 34c of the terminal portion 30 comes into contact with the side wall portion 44. As a result, the terminal portion 30 is incorporated into the case portion 40 in a state of being positioned in the storage portion 60 of the case portion 40.
  • the terminal portion 30 is integrally formed by attaching the spring 32 to the terminal member 31, is inserted through the first opening 61 of the case portion 40, and the terminal 33 on the tip side has the second opening. It is incorporated in a state of protruding from the portion 62.
  • the spring 32 can be incorporated into the case portion 40 without sandwiching the spring 32 between the cover portions 50.
  • the cover portion 50 can be attached to the case portion 40 without using rivets.
  • the quick-connect terminal unit main body 21 has less restrictions on the outer shape of the quick-connect terminal unit main body 21 as compared with the case where the cover portion 50 is attached to the case portion 40 by rivets, for example. Therefore, for example, the size of the quick-connect terminal unit main body 21 can be reduced.
  • FIG. 9 is an external perspective view of the cover portion according to the first embodiment.
  • the cover portion 50 is formed with a convex portion 51, a first guide hole 52, a second guide hole 53, and guide plates 54 and 55.
  • the cover portion 50 is inserted into the first opening 61 formed in the upper part of the case portion 40, and the convex portion 51 is inserted into the third opening 41a shown in FIG. 6 to be locked to the case portion 40.
  • the first guide hole 52 is a guide hole that guides the insertion of the electric wire (not shown) into the quick connection terminal unit 20 so that the tip of the electric wire (not shown) is arranged at a regular position with respect to the spring 32.
  • the second guide hole 53 is a guide hole for guiding the insertion of a tool (not shown) into the quick-connect terminal unit 20. Such a tool (not shown) is used to remove an electric wire (not shown) connected to the terminal portion 30 of the quick-connect terminal unit 20 from the quick-connect terminal unit 20.
  • the guide plates 54 and 55 are connected to the quick connection terminal unit 20 of the electric wire (not shown) so that the tip of the electric wire (not shown) inserted in the first guide hole 52 is arranged at a regular position with respect to the spring 32. Guide the insertion.
  • 10 and 11 are external perspective views of the terminal cover according to the first embodiment.
  • the terminal cover 22 extends downward from the terminal cover main body 71 that covers the upper portions of the screw terminal portions 13 and 14 of the circuit breaker 10 and the base end of the terminal cover main body 71, and is a case. It includes an opening cover portion 72 that closes the second opening 62 formed in the portion 40.
  • the terminal cover 22 has a pair of hanging portions 73 extending downward from both side portions of the terminal cover main body 71 and facing each other at intervals.
  • a convex portion 73a is formed in each hanging portion 73, and the terminal cover 22 is attached to the circuit breaker 10 by inserting the convex portion 73a into the round hole 11c shown in FIG.
  • the opening cover portion 72 has an opening cover main body 72a extending downward and a convex portion 72b protruding outward from the middle portion of the opening cover main body 72a.
  • the convex portion 72b is positioned so as to face the protruding portion 41b of the side wall portion 41 of the case portion 40 in the vertical direction. As a result, even when an upward force is applied to the terminal cover 22 in the state where the quick-connect terminal unit 20 is attached to the circuit breaker 10, the convex portion 72b is locked by the protruding portion 41b. Therefore, it is possible to prevent the terminal cover 22 from being removed from the circuit breaker 100.
  • FIG. 12 is a cross-sectional view taken along the line XII-XII shown in FIG.
  • FIG. 13 is a cross-sectional view taken along the line XII-XII shown in FIG. 1 in a state where the terminal cover is not attached in the circuit breaker according to the first embodiment.
  • FIG. 14 is an external perspective view showing the positional relationship between the quick-connect terminal unit main body and the terminal cover in a state where the quick-connect terminal unit is attached to the circuit breaker according to the first embodiment.
  • the terminal cover 22 is provided with the opening cover portion 72, and the opening cover main body 72a can close the second opening 62 of the quick-connect terminal unit main body 21.
  • the quick-connect terminal unit main body 21 is attached to the load side of the circuit breaker 10, the quick-connect terminal unit main body 21 is arranged at a position close to the exhaust path 11b provided in the circuit breaker 10 as shown in FIG. To.
  • the exhaust path 11b may discharge the melt or the like at the time of shutting off, but as described above, since the second opening 62 is blocked by the terminal cover 22, the melt or the like at the time of shutting off is fast. It is possible to suppress the inflow into the inside of the terminal unit main body 21.
  • the quick-connect terminal unit 20 attached to the circuit breaker 10 includes a terminal portion 30, an insulating case portion 40, and an insulating cover portion 50.
  • the terminal 33 on the tip end side is connected to the screw terminal portion 13 on the power supply side or the screw terminal portion 14 on the load side of the circuit breaker 10, and the spring 32 is provided on the terminal base 34 on the base end side.
  • the case portion 40 is provided with a first opening 61 into which the terminal portion 30 is inserted and a second opening 62 for projecting the terminal 33 on the tip end side of the terminal portion 30 to the outside.
  • the cover portion 50 guides the first guide hole 52 for guiding the insertion of the electric wire (not shown) into the case portion 40 and the insertion of the tool for removing the electric wire (not shown) from the case portion 40 into the case portion 40. It has a second guide hole 53 to be used.
  • the cover portion 50 is engaged with the case portion 40 in a state where the first opening 61 is closed.
  • the terminal portion 30 with the spring 32 attached to the terminal member 31 is inserted through the first opening 61 of the case portion 40 and incorporated into the case portion 40. Therefore, the spring 32 can be incorporated into the case portion 40 without sandwiching the spring 32 between the cover portion 50.
  • the cover portion 50 can be attached to the case portion 40 without using rivets.
  • the quick-connect terminal unit 20 includes a terminal cover 22 that covers the screw terminal portions 13 and 14 from above and closes the second opening 62.
  • the configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

Landscapes

  • Breakers (AREA)

Abstract

L'invention concerne une unité de borne à connexion rapide comprenant : une partie borne (30) ; une partie boîtier isolant (40) ; et une partie couvercle isolant (50). L'extrémité distale de la partie borne (30) est reliée à la partie borne de vis du côté source ou du côté charge d'un disjoncteur, et un ressort (32) est disposé sur l'extrémité proximale de la partie borne (30). La partie boîtier (40) comprend : une première ouverture (61) dans laquelle la partie borne (30) est insérée ; et une seconde ouverture (62) à partir de laquelle l'extrémité distale de la partie borne (30) est projetée vers l'extérieur. La partie couvercle (50) comprend : des premiers trous de guidage (52) dans lesquels un fil à insérer dans la partie boîtier (40) est guidé ; et des seconds trous de guidage (53), un outil pour retirer le fil de la partie boîtier (40) étant guidé de façon à être inséré dans la partie boîtier (40). La partie couvercle (50) est en prise avec la partie boîtier (40) tout en fermant la première ouverture (61).
PCT/JP2019/011747 2019-03-20 2019-03-20 Unité de borne à connexion rapide et disjoncteur WO2020188796A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2019/011747 WO2020188796A1 (fr) 2019-03-20 2019-03-20 Unité de borne à connexion rapide et disjoncteur
JP2021506095A JP7069402B2 (ja) 2019-03-20 2019-03-20 速結端子ユニットおよび回路遮断装置
CN202010172418.6A CN111725035A (zh) 2019-03-20 2020-03-12 快速连结端子单元及电路断路装置
CN202020304024.7U CN211555815U (zh) 2019-03-20 2020-03-12 快速连结端子单元及电路断路装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/011747 WO2020188796A1 (fr) 2019-03-20 2019-03-20 Unité de borne à connexion rapide et disjoncteur

Publications (1)

Publication Number Publication Date
WO2020188796A1 true WO2020188796A1 (fr) 2020-09-24

Family

ID=72494815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/011747 WO2020188796A1 (fr) 2019-03-20 2019-03-20 Unité de borne à connexion rapide et disjoncteur

Country Status (3)

Country Link
JP (1) JP7069402B2 (fr)
CN (2) CN111725035A (fr)
WO (1) WO2020188796A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10177870A (ja) * 1996-12-19 1998-06-30 Matsushita Electric Works Ltd 速結端子装置
JP2000058150A (ja) * 1998-08-12 2000-02-25 Matsushita Electric Works Ltd 端子装置
JP2018156885A (ja) * 2017-03-21 2018-10-04 富士電機機器制御株式会社 配線用接続器具、及び電気機器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6937721B2 (ja) * 2018-04-27 2021-09-22 三菱電機株式会社 速結端子ユニットおよび回路遮断器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10177870A (ja) * 1996-12-19 1998-06-30 Matsushita Electric Works Ltd 速結端子装置
JP2000058150A (ja) * 1998-08-12 2000-02-25 Matsushita Electric Works Ltd 端子装置
JP2018156885A (ja) * 2017-03-21 2018-10-04 富士電機機器制御株式会社 配線用接続器具、及び電気機器

Also Published As

Publication number Publication date
CN211555815U (zh) 2020-09-22
JPWO2020188796A1 (ja) 2021-10-14
CN111725035A (zh) 2020-09-29
JP7069402B2 (ja) 2022-05-17

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