WO2011125120A1 - 電源切替開閉器 - Google Patents
電源切替開閉器 Download PDFInfo
- Publication number
- WO2011125120A1 WO2011125120A1 PCT/JP2010/002527 JP2010002527W WO2011125120A1 WO 2011125120 A1 WO2011125120 A1 WO 2011125120A1 JP 2010002527 W JP2010002527 W JP 2010002527W WO 2011125120 A1 WO2011125120 A1 WO 2011125120A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- movable contact
- contact
- crossbar
- cross bar
- contacts
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/225—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member the supporting member being pivotable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
- H01H5/04—Energy stored by deformation of elastic members
- H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/36—Driving mechanisms
- H01H21/40—Driving mechanisms having snap action
- H01H21/42—Driving mechanisms having snap action produced by compression or extension of coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/018—Application transfer; between utility and emergency power supply
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
Definitions
- the present invention switches the power source from the commercial power source to another power source such as an emergency power source when a power failure occurs in the commercial power source connected to the load, and automatically switches to the commercial power source when the commercial power source is restored.
- the present invention relates to a power supply switching switch used in the above.
- the power switch is a device for switching a plurality of power supplies to supply a load, and is widely used in homes and facilities equipped with an emergency power supply (standby power supply) such as a generator for power failure countermeasures.
- an emergency power supply standby power supply
- the crossbar is rotated, and the power is switched by bringing the movable contact held on the crossbar into contact with the fixed contact on the opposite side.
- FIG. 1 and FIG. 2 are operation explanatory views of the conventional movable contact described in Patent Document 1.
- FIG. The movable contact 51 is a metal plate having a base 52 bent, and the base 52 is flexibly supported on a cross bar 53 that is rotated by a toggle mechanism (not shown).
- a projecting piece 54 having an L-shaped cross section is erected with a gap between it and the movable contact 51.
- a compression spring 55 is provided on the opposite side of the cross bar 53 from the projecting piece 54, and the lower part of the movable contact 51 is elastically pressed toward the side wall of the projecting piece 54.
- the power supply switching switch described in Patent Document 1 has a structure in which the contact pressure between the fixed contacts 56 and 57 on both the left and right sides and the movable contact 51 is generated by a single compression spring 55. .
- the fulcrum A is the lowermost end of the movable contact 51
- the force point B is the pressing point of the compression spring 55
- the action point C is the contact point of the tip of the movable contact 51
- the lever ratio is AB / AC.
- the lever ratio is PB / PC.
- the present invention made to solve the above problems is a power supply switching switch that rotates a crossbar provided with a movable contact, and contacts the movable contact with one of the fixed contacts arranged on the left and right sides of the crossbar.
- the crossbar has a non-circular cross section with protruding pieces on the left and right, and its rotation angle is larger than the allowable rotation angle of the movable contact between the left and right fixed contacts, and the crossbar has play at the base of the movable contact.
- a through hole to be inserted is formed, and a step portion for receiving the protruding piece of the cross bar and a spring accommodating portion extending in the central axis direction of the movable contact are formed inside the through hole.
- a compression spring is accommodated in the spring accommodating portion, and the movable contact is elastically held in the cross bar.
- the power supply switching switch of the present invention has a structure in which the crossbar and the movable contact are elastically held by a compression spring. Then, by setting the rotation angle of the crossbar to be larger than the allowable rotation angle of the movable contact between the left and right fixed contacts, one of the protruding pieces of the crossbar is still connected to the movable contact even after the movable contact comes into contact with the fixed contact. Rotate extra while holding only one step. At this time, the compression spring arranged on the central axis of the movable contact presses the movable contact so as to return the other protruding piece floating from the stepped portion to the original position.
- the contact at the tip of the movable contact presses the fixed contact with the point where the protruding piece presses the stepped portion as a fulcrum.
- FIG. 4 is a top view of FIG. 3. It is AA sectional drawing of FIG. It is operation
- reference numeral 1 denotes a crossbar having a non-circular cross section that is rotatably supported by the main body in the left-right direction
- 2 is a toggle mechanism that rotates the crossbar 1 in either the left or right direction
- 3 is the crossbar.
- a movable contact supported by 1, 4 is a fixed contact on the right side
- 5 is a fixed contact on the left side.
- the right fixed contact 4 is connected to the right power supply terminal 6, and the left fixed contact 5 is connected to the left power supply terminal 7.
- the movable contact 3 is connected to the load terminal 8.
- link arms 17 extending on both the left and right sides are fixed to the cross bar 1, and compression coil springs 18 and 19 are provided on both ends thereof to repel the link arms 17 from both sides. Since the cross bar 1 that is the rotation axis of the link arm 17 and the mounting pins 20 and 20 to the main body of the compression coil springs 18 and 19 are in a straight line, the link arm 17 is unstable on this straight line. As shown in FIG. 4, the link arm 17 is inclined to the left or right to attempt a stable position. Accordingly, the drive handle 9 is moved by the solenoids 11 and 12 until the neutral point is exceeded, and at the same time, the link arm 17 is suddenly moved to the inclined position by the elastic force of the compression coil springs 18 and 19. As a result, the crossbar 1 rotates instantaneously to bring the movable contact 3 into contact with the opposite fixed contact.
- the rotation angle of the cross bar 1 is regulated by the angle at which the drive handle 9 contacts the main body.
- the rotation angle of the cross bar 1 is set larger than the rotation allowable angle of the movable contact 3 between the left and right fixed contacts 4 and 5.
- the rotation structure of the cross bar 1 using the toggle mechanism described above is the same as the conventional one as described in Patent Document 1.
- the structure for attaching the movable contact 3 to the cross bar 1 that is a feature of the present invention will be described below with reference to FIGS.
- the mounting portion of the movable contact 3 of the cross bar 1 has a non-circular cross section provided with protruding pieces 21 on the left and right.
- the cross bar 1 is substantially square, and the four corner portions are chamfered in an arc shape centering on the rotation center axis of the cross bar 1.
- a spring seat 22 is formed on the upper surface.
- a through hole 23 through which the cross bar 1 is inserted with play is formed at the base of the movable contact 3, and a step portion 24 for receiving the left and right protruding pieces 21 of the cross bar 1 is formed inside the through hole 23. It is formed on the left and right. Further, a spring accommodating portion 25 extending in the central axis direction of the movable contact 3 is formed.
- a compression spring 26 is housed inside the spring housing portion 25. The compression spring 26 is a compression coil spring, and the lower end thereof is fitted to the spring receiving seat 22 of the cross bar 1, and the upper end thereof is in close contact with the ceiling surface of the spring housing portion 25. For this reason, the movable contact 3 is elastically held in a state where it is always pushed upward with respect to the cross bar 1.
- the movable contact 3 is elastically held with respect to the crossbar 1 and is not fixed. Therefore, in this embodiment, as shown in FIG. 3, guides 30 are provided at the center and both sides of the two movable contacts 3 to support the movable contacts 3 so that they do not rattle in the axial direction of the crossbar 1. ing.
- the number of movable contacts 3 is arbitrary, and is not limited to this embodiment.
- FIG. 5 shows a state where the crossbar 1 is rotated to the right.
- the movable contact 3 is also rotated to the right together with the crossbar 1.
- the rotation angle of the crossbar 1 is set larger than the allowable rotation angle of the movable contact 3 between the left and right fixed contacts 4, 5, the movable contact 3.
- the crossbar 1 further rotates in the right direction after the contact at the tip of the contact stops against the fixed contact 4. For this reason, as shown in the drawing, the right protruding piece 21 of the cross bar 1 contacts the right step 24 of the movable contact 3, and the left protruding piece 21 is lifted from the left step 24.
- the compression spring 26 accommodated in the spring accommodating portion 25 is located on the left side of the crossbar 1 that has been lifted, with the point X at which the right protruding piece 21 of the crossbar 1 contacts the right step 24 of the movable contact 3 as a fulcrum.
- the movable contact 3 is pressed in a direction to return the protruding piece 21 to the position Y in contact with the left step 24 of the movable contact 3.
- the contact Z 1 at the tip of the movable contact 3 presses the fixed contact 4 with the point X at which the right protruding piece 21 of the cross bar 1 contacts the right step 24 of the movable contact 3 as a fulcrum, and the contact pressure is increased. Cause it to occur.
- the ratio (YS / YZ 2 ) of the distance from the point Y where the contact point contacts the left step 24 of the movable contact 3 to the point Z 2 where the contact at the tip of the movable contact 3 presses the fixed contact 5 is the same.
Abstract
Description
図3及び図4において、1は本体に左右方向に回転可能に支持された断面非円形のクロスバー、2はこのクロスバー1を左右何れかの方向に回転させるトグル機構、3はこのクロスバー1に支持された可動コンタクト、4は右側の固定コンタクト、5は左側の固定コンタクトである。右側の固定コンタクト4は右側の電源端子6に接続され、左側の固定コンタクト5は左側の電源端子7に接続されている。また可動コンタクト3は負荷端子8に接続されている。
2 トグル機構
3 可動コンタクト
4 右側の固定コンタクト
5 左側の固定コンタクト
6 電源端子
7 電源端子
8 負荷端子
9 ドライブハンドル
10 ロッド
11 ソレノイド
12 ソレノイド
13 プランジャ
14 プランジャ
15 連結部材
16 長孔
17 リンクアーム
18 圧縮コイルバネ
19 圧縮コイルバネ
20 取付ピン
21 突出片
22 バネ受け座
23 貫通孔
24 段部
25 バネ収納部
26 圧縮バネ
30 ガイド
51 可動コンタクト
52 基部
53 クロスバー
54 突片
55 圧縮バネ
56 固定コンタクト
57 固定コンタクト
Claims (3)
- 可動コンタクトを備えたクロスバーを回転させ、可動コンタクトをクロスバーの左右両側に配置された固定コンタクトの一方に接触させる電源切替開閉器において、
クロスバーは左右に突出片を備えた非円形断面を有し、その回転角度は左右の固定コンタクト間における可動コンタクトの回転許容角度よりも大であり、
可動コンタクトの基部にはクロスバーが遊びを持って挿通される貫通孔が形成されており、この貫通孔の内部にはクロスバーの突出片を受ける段部と、可動コンタクトの中心軸方向に延びるバネ収納部とが形成されており、
このバネ収納部に圧縮バネを収納してクロスバーに可動コンタクトを弾性的に保持させたことを特徴とする電源切替開閉器。 - 可動コンタクトが固定コンタクトに接触した後、さらにクロスバーが回転することによりクロスバーの片側の突出片を可動コンタクトの段部から浮き上がらせ、圧縮バネが浮き上がった突出片を可動コンタクトの段部に接する位置に戻そうとする方向に可動コンタクトを押圧する力を利用して、可動コンタクトと固定コンタクトとの間の接触圧を生じさせることを特徴とする請求項1記載の電源切替開閉器。
- クロスバーをトグル機構により回転させることを特徴とする請求項1記載の電源切替開閉器。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/378,521 US8735754B2 (en) | 2010-04-07 | 2010-04-07 | Power transfer switch |
JP2012509180A JP5459885B2 (ja) | 2010-04-07 | 2010-04-07 | 電源切替開閉器 |
PCT/JP2010/002527 WO2011125120A1 (ja) | 2010-04-07 | 2010-04-07 | 電源切替開閉器 |
KR1020127000329A KR101620130B1 (ko) | 2010-04-07 | 2010-04-07 | 전원 전환 개폐기 |
CN201080031497.3A CN102812531B (zh) | 2010-04-07 | 2010-04-07 | 电源转换开关 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/002527 WO2011125120A1 (ja) | 2010-04-07 | 2010-04-07 | 電源切替開閉器 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011125120A1 true WO2011125120A1 (ja) | 2011-10-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/002527 WO2011125120A1 (ja) | 2010-04-07 | 2010-04-07 | 電源切替開閉器 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8735754B2 (ja) |
JP (1) | JP5459885B2 (ja) |
KR (1) | KR101620130B1 (ja) |
CN (1) | CN102812531B (ja) |
WO (1) | WO2011125120A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015090833A (ja) * | 2013-11-07 | 2015-05-11 | 日東工業株式会社 | 切替開閉器 |
JP2016134361A (ja) * | 2015-01-22 | 2016-07-25 | 株式会社新愛知電機製作所 | 電源切替開閉器 |
JP2016136465A (ja) * | 2015-01-23 | 2016-07-28 | 株式会社新愛知電機製作所 | 電源切替開閉器 |
WO2019052549A1 (zh) | 2017-09-15 | 2019-03-21 | Abb 有限公司 | 开关装置 |
Families Citing this family (10)
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CN103531368B (zh) * | 2013-10-29 | 2015-05-13 | 上海华明电力设备制造有限公司 | 一种真空有载分接开关中的隔离开关 |
KR20160136057A (ko) * | 2015-05-19 | 2016-11-29 | 주식회사 비츠로테크 | 전원절환개폐기의 작동레버 구조 |
US10083809B2 (en) | 2016-04-21 | 2018-09-25 | Hartland Controls, Llc | Electrical power transfer switch |
US9865416B2 (en) | 2016-04-21 | 2018-01-09 | Hartland Controls, Llc | Electrical power transfer switch |
EP3457422B1 (en) * | 2017-09-15 | 2021-04-14 | ABB Schweiz AG | An electrical switch |
FI11883U1 (fi) * | 2017-09-15 | 2017-12-05 | Abb Oy | Sähkökytkin |
CN109119259A (zh) * | 2018-09-13 | 2019-01-01 | 浙江正泰电器股份有限公司 | 分极式双电源自动转换开关 |
CN114503231A (zh) * | 2019-06-21 | 2022-05-13 | 康明斯发电Ip公司 | 扁平力通电感应开关 |
CN113838686B (zh) * | 2020-06-24 | 2023-05-26 | 施耐德电器工业公司 | 动触头压力保持机构和双电源转换开关 |
CN114429871A (zh) * | 2020-10-29 | 2022-05-03 | 施耐德电器工业公司 | 动触头压力保持结构、动触头组件和双电源转换开关 |
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- 2010-04-07 US US13/378,521 patent/US8735754B2/en active Active
- 2010-04-07 KR KR1020127000329A patent/KR101620130B1/ko active IP Right Grant
- 2010-04-07 CN CN201080031497.3A patent/CN102812531B/zh active Active
- 2010-04-07 WO PCT/JP2010/002527 patent/WO2011125120A1/ja active Application Filing
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JPS5622725U (ja) * | 1979-07-31 | 1981-02-28 | ||
JPH0730423U (ja) * | 1993-11-15 | 1995-06-06 | 東光電気株式会社 | 開閉器の手動操作機構 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015090833A (ja) * | 2013-11-07 | 2015-05-11 | 日東工業株式会社 | 切替開閉器 |
JP2016134361A (ja) * | 2015-01-22 | 2016-07-25 | 株式会社新愛知電機製作所 | 電源切替開閉器 |
JP2016136465A (ja) * | 2015-01-23 | 2016-07-28 | 株式会社新愛知電機製作所 | 電源切替開閉器 |
WO2019052549A1 (zh) | 2017-09-15 | 2019-03-21 | Abb 有限公司 | 开关装置 |
US11495417B2 (en) | 2017-09-15 | 2022-11-08 | Abb Schweiz Ag | Switching apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPWO2011125120A1 (ja) | 2013-07-08 |
CN102812531B (zh) | 2015-04-22 |
US8735754B2 (en) | 2014-05-27 |
KR20120139654A (ko) | 2012-12-27 |
KR101620130B1 (ko) | 2016-05-12 |
CN102812531A (zh) | 2012-12-05 |
US20120090972A1 (en) | 2012-04-19 |
JP5459885B2 (ja) | 2014-04-02 |
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