WO2023248545A1 - 電磁接触器と補助接点ユニットとの連結構造 - Google Patents

電磁接触器と補助接点ユニットとの連結構造 Download PDF

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Publication number
WO2023248545A1
WO2023248545A1 PCT/JP2023/008358 JP2023008358W WO2023248545A1 WO 2023248545 A1 WO2023248545 A1 WO 2023248545A1 JP 2023008358 W JP2023008358 W JP 2023008358W WO 2023248545 A1 WO2023248545 A1 WO 2023248545A1
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WO
WIPO (PCT)
Prior art keywords
auxiliary contact
engagement
electromagnetic contactor
connection structure
contact support
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2023/008358
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English (en)
French (fr)
Japanese (ja)
Inventor
幹久 中野
充哉 伊藤
翔太 菊地
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric FA Components and Systems Co Ltd
Original Assignee
Fuji Electric FA Components and Systems Co Ltd
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 Fuji Electric FA Components and Systems Co Ltd filed Critical Fuji Electric FA Components and Systems Co Ltd
Priority to CN202380014843.4A priority Critical patent/CN118339627A/zh
Priority to JP2023574771A priority patent/JP7517623B2/ja
Publication of WO2023248545A1 publication Critical patent/WO2023248545A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/10—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of bayonet connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements

Definitions

  • the present invention relates to a connection structure between an electromagnetic contactor and an auxiliary contact unit.
  • the auxiliary contact unit which can be attached as an option to the electromagnetic contactor, outputs the auxiliary contact signal to an external control circuit etc. in conjunction with the opening and closing of the electromagnetic contactor.
  • an external control circuit etc. in conjunction with the opening and closing of the electromagnetic contactor.
  • a T-shaped engagement protrusion is formed on the main contact support of an electromagnetic contactor, and a C-shaped engagement recess is formed on the auxiliary contact support of an auxiliary contact unit.
  • a convex portion and the engagement recess are connected to each other.
  • a raised protrusion has been provided, and the engagement protrusion has been formed at the tip thereof.
  • An object of the present invention is to improve the dustproof performance of an electromagnetic contactor in a connection structure between the electromagnetic contactor and an auxiliary contact unit.
  • a connection structure between an electromagnetic contactor and an auxiliary contact unit includes an electromagnetic contactor and an auxiliary contact unit.
  • the main contact support moves back and forth along the depth direction.
  • the auxiliary contact support is connected to the main contact support from the front side in the depth direction of the electromagnetic contactor.
  • a first engaging portion is formed on the base end surface of the main contact support.
  • the auxiliary contact support is formed with a second engaging portion that fits into and is connected to the first engaging portion. The first engaging portion is disposed on the back side of the electromagnetic contactor from the front side in the depth direction.
  • the first engaging portion is disposed further back than the front surface in the depth direction of the electromagnetic contactor, and is located close to the proximal end surface. Therefore, when the second engaging part is connected to the first engaging part, no wasted space is created, and dust can be prevented from accumulating on the base end surface of the main contact support. Therefore, it is possible to suppress dust from entering the inside of the electromagnetic contactor due to the operation of the main contact support, and the dustproof performance is improved.
  • FIG. 3 is a cross-sectional view showing a connection structure of a comparative example.
  • FIG. 3 is a perspective view showing a connection structure of a comparative example.
  • FIG. 7 is an enlarged cross-sectional view showing a connection structure of a comparative example. It is a figure showing a modification.
  • FIG. 1 is a diagram showing the electromagnetic contactor 11 and the main contact support 14.
  • (a) in the figure shows the electromagnetic contactor 11 viewed from one side in the vertical direction, the other side in the width direction, and from the front in the depth direction.
  • (b) in the figure shows the electromagnetic contactor 11 viewed from one side in the vertical direction, the other side in the width direction, and from the front in the depth direction.
  • the electromagnetic contactor 11 includes a lower frame 12, an upper frame 13, and a main contact support 14.
  • An upper frame 13 is attached to the lower frame 12 on the front side in the depth direction, and an arc extinguishing cover 15 is attached to the upper frame 13 on the front side in the depth direction.
  • These lower frame 12 and upper frame 13 serve as a housing, and a main contact support 14 is supported inside thereof so as to be movable in the depth direction.
  • the main contact support 14 is located at the front side in the depth direction to open the main contact when the electromagnet section (not shown) is de-energized, and is located at the back side in the depth direction to open the main contact when the electromagnet section is excited. Close.
  • the main contact support 14 has an engagement convex portion 17 (first engagement portion) formed on a base end surface 16 facing toward the front in the depth direction. The engagement convex portion 17 is exposed through the opening of the upper frame 13 and the opening of the arc-extinguishing cover 15.
  • FIG. 2 is a diagram showing the auxiliary contact unit 21 and the auxiliary contact support 24.
  • (a) in the figure shows the auxiliary contact unit 21 viewed from the other side in the vertical direction, one side in the width direction, and from the back in the depth direction.
  • (b) in the figure shows the auxiliary contact unit 21 viewed from the other side in the vertical direction, one side in the width direction, and from the back in the depth direction.
  • the auxiliary contact unit 21 outputs an auxiliary contact signal to an external control circuit, etc. in conjunction with the opening and closing of the electromagnetic contactor 11, and has a depth that is the direction in which the main contact support 14 of the electromagnetic contactor 11 advances and retreats. It is a head-on type that can be attached to the front side of the camera.
  • the auxiliary contact unit 21 includes a lower frame 22, an upper frame 23, and an auxiliary contact support 24.
  • An upper frame 23 is assembled to the lower frame 22 on the front side in the depth direction.
  • These lower frame 22 and upper frame 23 serve as a housing, and an auxiliary contact support 24 is supported inside thereof so as to be movable in the depth direction.
  • the auxiliary contact support 24 is formed with a protrusion 26 that protrudes toward the back in the depth direction, and at the tip of the protrusion 26 there is an engagement recess 27 (the third A second engaging portion) is formed.
  • the protrusion 26 protrudes from the opening of the lower frame 22.
  • the auxiliary contact support 24 opens and closes the auxiliary contact by moving forward and backward in the depth direction in conjunction with the main contact support 14.
  • FIG. 3 is a diagram showing the attachment.
  • the electromagnetic contactor 11 and the auxiliary contact unit 21 are shown viewed from the other side in the vertical direction, one side in the width direction, and from the front in the depth direction.
  • the auxiliary contact unit 21 is first pressed against the electromagnetic contactor 11 from the front in the depth direction, and then displaced in the other direction in the vertical direction, so that the engagement recess 27 is fitted into the engagement protrusion 17.
  • FIG. 4 is a diagram showing the state after attachment.
  • the electromagnetic contactor 11 and the auxiliary contact unit 21 are shown viewed from the other side in the vertical direction, one side in the width direction, and from the front in the depth direction.
  • FIG. 5 is a cross-sectional view of the connection structure.
  • the engagement convex portion 17 is formed on the base end surface 16 of the main contact support 14 and is disposed on the back side of the front surface 18 of the arc extinguishing cover 15 in the depth direction.
  • the engagement convex portion 17 is convex relative to the engagement recess 27 and includes a neck portion 31 and a head portion 32 .
  • the neck portion 31 is formed on the proximal end side and extends in the depth direction.
  • the head portion 32 is formed on the distal end side, extends in the width direction, and is larger than the neck portion 31 in the width direction. That is, the engaging convex portion 17 is formed in a substantially T-shape when viewed from the vertical direction.
  • the engagement recess 27 is formed in the protrusion 26 of the auxiliary contact support 24 and is disposed on the back side of the front surface 18 of the arc extinguishing cover 15 in the depth direction.
  • the engagement recess 27 is recessed relative to the engagement protrusion 17 and includes a narrow portion 33 and a wide portion 34 .
  • the narrow portion 33 is formed on the distal end side, extends in the depth direction, and the neck portion 31 is fitted into the narrow portion 33 .
  • the wide part 34 is formed on the base end side, extends in the width direction, is larger in the width direction than the narrow part 33, and fits into the head 32.
  • the engagement recess 27 is formed in a substantially C-shape that opens toward the back in the depth direction when viewed from the vertical direction, or in the shape of a lip groove steel.
  • the tip of the protrusion 26 of the auxiliary contact support 24 approaches the proximal end surface 16 of the main contact support 14 . Therefore, when the engagement protrusion 17 and the engagement recess 27 are connected, no wasted space is created on the front side of the base end surface 16 in the depth direction.
  • FIG. 6 is a perspective view of the connection structure.
  • the connection structure is shown as seen from the other side in the vertical direction, one side in the width direction, and the front in the depth direction.
  • the auxiliary contact unit 21 in order to make the structure easier to understand, only the auxiliary contact support 24 is shown. The configuration is omitted. In the state where the engagement convex portion 17 and the engagement recess 27 are connected, the tip side of the protrusion 26 of the auxiliary contact support 24 enters into the back side of the arc extinguishing cover 15 in the depth direction.
  • FIG. 7 is a diagram showing the engagement protrusion 17 and the engagement recess 27.
  • (a) in the figure shows a state in which the engaging convex portion 17 is viewed from one side in the vertical direction, the other side in the width direction, and from the back in the depth direction. As shown by the hatching, the front end edge 41 of the engagement convex portion 17 is chamfered when the engagement convex portion 17 is fitted into the engagement recess 27 .
  • the chamfering is applied to the entire circumference of the contours of the neck portion 31 and the head portion 32 when viewed from one side in the vertical direction, and the protruding corner formed by the front face facing one side in the vertical direction and the end face perpendicular to the vertical direction is diagonally 45 It is a C chamfer that was removed at the same time.
  • a support wall 42 is formed on the rear end side of the engagement protrusion 17 when it is fitted into the engagement recess 27, and protrudes from both sides in the width direction.
  • the height of the support wall 42 in the depth direction corresponds to the height of the engagement protrusion 17, and the overall width corresponds to the width of the protrusion 26.
  • the engaging convex portion 17 has an R-shape in which an inner corner 43 where the neck portion 31 and the head portion 32 intersect is rounded when viewed from one side in the vertical direction.
  • FIG. (b) in the figure shows the engagement recess 27 viewed from the other side in the vertical direction, one side in the width direction, and the front side in the depth direction.
  • the front edge 44 of the engagement recess 27 is chamfered when it is fitted into the engagement protrusion 17.
  • the chamfering is applied to the entire circumference of the outline of the narrow part 33 and the wide part 34 when viewed from the other side in the vertical direction, and the chamfering is applied to the protruding corner formed by the front face facing the other side in the vertical direction and the end face perpendicular to the vertical direction. It is a rounded chamfer.
  • a closing wall 45 that closes off the entire engagement recess 27 is formed on the rear end side of the engagement recess 27 when it is fitted into the engagement protrusion 17 .
  • the engagement recess 27 is formed into an arc shape by rounding both widthwise ends 46 of the wide portion 34 when viewed from the other side in the vertical direction.
  • the connection structure between the electromagnetic contactor 11 and the auxiliary contact unit 21 includes the electromagnetic contactor 11 and the auxiliary contact unit 21.
  • the main contact support 14 moves forward and backward along the depth direction.
  • the auxiliary contact support 24 is connected to the main contact support 14 from the front side of the electromagnetic contactor 11 in the depth direction.
  • An engagement convex portion 17 is formed on the base end surface 16 of the main contact support 14 .
  • the auxiliary contact support 24 is formed with an engagement recess 27 that fits into and is connected to the engagement protrusion 17 .
  • the engagement convex portion 17 is arranged on the back side of the electromagnetic contactor 11 with respect to the front surface of the electromagnetic contactor 11 in the depth direction.
  • the engagement protrusion 17 is located close to the proximal end surface 16, and when the engagement protrusion 17 and the engagement recess 27 are connected, no wasted space is created, and dust can be removed from the proximal end surface 16 of the main contact support 14. can suppress the accumulation of Therefore, it is possible to suppress dust from entering the inside of the electromagnetic contactor 11 due to the operation of the main contact support 14, and the dustproof performance is improved.
  • the engagement convex portion 17 includes a neck portion 31 and a head portion 32.
  • the neck portion 31 is formed on the proximal end side.
  • the head portion 32 is formed on the distal end side and is larger than the neck portion 31 in the width direction.
  • the engagement recess 27 includes a narrow portion 33 and a wide portion 34 .
  • the narrow portion 33 is formed on the distal end side, and the neck portion 31 is fitted into the narrow portion 33 .
  • the wide portion 34 is formed on the proximal end side, and the head portion 32 is fitted into the wide portion 34 .
  • the engagement protrusion 17 has a front edge 41 chamfered when it is fitted into the engagement recess 27 . Thereby, it is possible to suppress catching when fitting the engagement protrusion 17 into the engagement recess 27, and achieve smooth fitting.
  • the engagement recess 27 has a front edge 44 chamfered when it is fitted into the engagement protrusion 17 . Thereby, it is possible to suppress catching when fitting the engagement recess 27 to the engagement protrusion 17 and achieve smooth fitting.
  • a support wall 42 is formed on the rear end side of the engagement protrusion 17 when it is fitted into the engagement recess 27, and protrudes from both sides in the width direction. Thereby, the strength of the engagement convex portion 17 is improved, and breakage can be suppressed.
  • the support wall 42 also functions as a stopper when the engagement protrusion 17 and the engagement recess 27 are fitted together.
  • a closing wall 45 that closes off the engagement recess 27 is formed on the rear end side of the engagement recess 27 when it is fitted into the engagement protrusion 17 . Thereby, the strength of the engagement recess 27 is improved, and breakage can be suppressed.
  • the closing wall 45 also functions as a stopper when the engagement recess 27 and the engagement protrusion 17 are fitted together.
  • the neck portion 31 extends in the depth direction
  • the head portion 32 extends in the width direction
  • an inner corner 43 where the neck portion 31 and the head portion 32 intersect when viewed from the fitting direction is rounded.
  • a narrow portion 33 extends in the depth direction
  • a wide portion 34 extends in the width direction
  • both ends 46 of the wide portion 34 in the width direction are rounded when viewed from the fitting direction.
  • the main contact support 14 has an engagement protrusion 17 formed therein, and the auxiliary contact support 24 has an engagement recess 27 formed therein.
  • the auxiliary contact support 24 is formed with a protrusion 26 that protrudes toward the main contact support 14, and an engagement recess 27 is formed at the tip of the protrusion 26. Thereby, the distal end side of the protruding portion 26 enters into the back side of the electromagnetic contactor 11 in the depth direction, and it is possible to suppress the accumulation of dust on the base end surface 16 of the main contact support 14.
  • FIG. 8 is a sectional view showing a connection structure of a comparative example.
  • a cross section of the connection structure along the width direction and the depth direction passing through the engagement protrusion 51 and the engagement recess 52 is shown as viewed from the other longitudinal direction.
  • a protrusion 53 for raising the height is provided, and the engagement protrusion 51 is formed at the tip thereof. ing.
  • FIG. 9 is a perspective view showing a connection structure of a comparative example.
  • the connection structure of the comparative example is shown as seen from the other side in the vertical direction, one side in the width direction, and from the front in the depth direction. Structures other than the support 24 are omitted.
  • the protrusion 26 of the auxiliary contact support 24 does not extend deep into the arc extinguishing cover 15 in the depth direction. Therefore, wasted space is created on both sides of the protruding portion 53 in the width direction, resulting in a structure in which dust easily falls off as shown by the block arrows.
  • FIG. 10 is an enlarged sectional view showing a connection structure of a comparative example.
  • an enlarged cross section of the connection structure along the width direction and the depth direction passing through the engagement protrusion 51 and the engagement recess 52 is shown as seen from the other longitudinal direction.
  • the connection structure of the comparative example when the main contact support 14 moves back and forth, stress is concentrated at the inner corner of the engagement convex portion 51 where the neck portion 54 and the head portion 55 intersect when viewed from the vertical direction, leading to breakage. It was possible. Similarly, when the main contact support 14 moves back and forth, stress is concentrated at the four corners of the wide part 56 of the engagement recess 52 when viewed from the vertical direction, potentially causing breakage.
  • FIG. 11 is a diagram showing a modification. (a) in the figure shows a state in which the engaging convex portion 17 is viewed from one side in the vertical direction, the other side in the width direction, and from the back in the depth direction.
  • the head 61 of the engagement convex portion 17 is circular when viewed in the vertical direction, and is formed in a spherical shape that is convex toward one side in the vertical direction.
  • (b) in the figure shows the engagement recess 27 viewed from the other side in the vertical direction, one side in the width direction, and from the front in the depth direction.
  • the wide portion 62 of the engagement recess 27 is circular when viewed in the vertical direction, and is formed in a spherical shape that is convex toward one side in the vertical direction.
  • the present invention is not limited to this. That is, the main contact support 14 may be formed with an engagement recess, and the auxiliary contact support 24 may be formed with an engagement protrusion.
  • the height dimension of the support wall 42 is made to correspond to the height dimension of the engagement protrusion 17, but the present invention is not limited thereto.
  • the closing wall 45 closes off the entire engagement recess 27, but is not limited thereto.
  • stress is concentrated at the four corners of the wide portion 34 when the main contact support 14 moves back and forth, so the closing wall 45 only needs to close at least the wide portion 34.
  • SYMBOLS 11 Magnetic contactor, 12... Lower frame, 13... Upper frame, 14... Main contact support, 15... Arc-extinguishing cover, 16... Base end surface, 17... Engagement convex part, 18... Front side, 21... Auxiliary contact unit , 22... lower frame, 23... upper frame, 24... auxiliary contact support, 26... protrusion, 27... engaging recess, 31... neck, 32... head, 33... narrow width part, 34... wide width part, 41...

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Switch Cases, Indication, And Locking (AREA)
PCT/JP2023/008358 2022-06-22 2023-03-06 電磁接触器と補助接点ユニットとの連結構造 Ceased WO2023248545A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380014843.4A CN118339627A (zh) 2022-06-22 2023-03-06 电磁接触器与辅助触点单元的连结结构
JP2023574771A JP7517623B2 (ja) 2022-06-22 2023-03-06 電磁接触器と補助接点ユニットとの連結構造

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022100459 2022-06-22
JP2022-100459 2022-06-22

Publications (1)

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WO2023248545A1 true WO2023248545A1 (ja) 2023-12-28

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PCT/JP2023/008358 Ceased WO2023248545A1 (ja) 2022-06-22 2023-03-06 電磁接触器と補助接点ユニットとの連結構造

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JP (1) JP7517623B2 (enrdf_load_stackoverflow)
CN (1) CN118339627A (enrdf_load_stackoverflow)
WO (1) WO2023248545A1 (enrdf_load_stackoverflow)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5696551U (enrdf_load_stackoverflow) * 1979-12-25 1981-07-31
JPS58176347U (ja) * 1982-05-20 1983-11-25 三菱電機株式会社 接点ユニツト連結型電磁開閉装置
JPH01168939U (enrdf_load_stackoverflow) * 1988-05-19 1989-11-29
JPH08129947A (ja) * 1994-10-31 1996-05-21 Mitsubishi Electric Corp 電磁接触器
JP2006501613A (ja) * 2002-10-02 2006-01-12 シーメンス　アクチエンゲゼルシヤフト 電磁開閉装置
JP2013225391A (ja) * 2012-04-20 2013-10-31 Mitsubishi Electric Corp 電磁接触器−補助接点ユニット接続構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5696551U (enrdf_load_stackoverflow) * 1979-12-25 1981-07-31
JPS58176347U (ja) * 1982-05-20 1983-11-25 三菱電機株式会社 接点ユニツト連結型電磁開閉装置
JPH01168939U (enrdf_load_stackoverflow) * 1988-05-19 1989-11-29
JPH08129947A (ja) * 1994-10-31 1996-05-21 Mitsubishi Electric Corp 電磁接触器
JP2006501613A (ja) * 2002-10-02 2006-01-12 シーメンス　アクチエンゲゼルシヤフト 電磁開閉装置
JP2013225391A (ja) * 2012-04-20 2013-10-31 Mitsubishi Electric Corp 電磁接触器−補助接点ユニット接続構造

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Publication number Publication date
CN118339627A (zh) 2024-07-12
JPWO2023248545A1 (enrdf_load_stackoverflow) 2023-12-28
JP7517623B2 (ja) 2024-07-17

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