CN103700519A - Automatic conversion switching device with neutral pole overlapping and switching functions - Google Patents
Automatic conversion switching device with neutral pole overlapping and switching functions Download PDFInfo
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- CN103700519A CN103700519A CN201310749860.0A CN201310749860A CN103700519A CN 103700519 A CN103700519 A CN 103700519A CN 201310749860 A CN201310749860 A CN 201310749860A CN 103700519 A CN103700519 A CN 103700519A
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Abstract
An automatic conversion switching device with neutral pole overlapping and switching functions comprises a base, eight groups of lower part static contacts, two movable contact groups, a base upper cover, eight upper part static contacts, two driving shafts and a driving plate; the middle of the base is divided into two parts left and right; each part is provided with four groups of lower part static contacts from left to right; one group of movable contacts is arranged in each frame; each group of movable contacts is formed by a contact support, a group of neutral pole movable contacts and three groups of movable contacts with A, B and C phases; the base upper cover covers above the middle of the base; the lower ends of the driving shafts are inserted into round holes of the contact supports after penetrating through driving shafts penetrating holes; the driving plate is arranged outside the top surface of the base upper cover. The automatic conversion switching device with the neutral pole overlapping and switching functions aims at the condition that in the conversion process of a normally used power supply and a standby power supply, two paths of power supply neutral lines are subjected to overlapping of a certain time at the closing time while the neutral line of a load end is not disconnected, so load equipment is not damaged, safety loopholes are eliminated, and the automatic conversion switching device with the neutral pole overlapping and switching functions has the advantages of reasonable structural design and convenience in operation.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology field, particularly relate to a kind of automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole.
Background technology
Automatic transfer switching electric appliance is a kind of use terminal appliance widely, mainly to utilize the controller driving electric operating mechanism on it to control the action of carrying out switch,, stand-by power supply conventional with connection or disjunction, thus guarantee the safety of electric power system and the continuity of production.At present conventional automatic transfer switching electric appliance is in automatic transfer process, it is all a closed other road power supply again under the prerequisite of cutting off a road power supply completely, the benefit of processing is although it is so to avoid two-way power supply to occur the situation of short circuit, be that two-way power-supply system has been accomplished isolation completely really, but the load end neutral line short time disconnects completely in transfer process, this phenomenon is called zero line and soars.And many distribution systems do not allow the situation that occurs that the neutral line disconnects in transfer process, such as the data equipment adopting in various civilian and public buildings, particularly at aspects such as subway Surveillance center, stadiums scoring system and intelligent buildings, these data equipments generally adopt front-end configuration automatic transfer switching electric appliance, and assist and power in the mode of USP uninterrupted power supply, under normal circumstances, data equipment is by commonly using Power supply, USP output zero ground voltage, close to electrical network input zero ground voltage, is generally no more than 3V.When conventional abnormity of power supply, at automatic transfer switching electric appliance, to change and start in stand-by power supply process, on coupled data equipment, phase line and zero line and two-way input power disconnect, now by USP powering load, to guarantee not power-off of server operation.But because USP output zero line derives from electrical network zero line, and electrical network zero line has disconnected, result USP output zero line current potential is in suspended state, its output zero ground voltage is likely up to dozens or even hundreds of volt, so just probably directly cause server to be restarted even and burn out, thereby the safe operation of the equipment of giving causes major hidden danger.Yet the structure of at present conventional automatic transfer switching electric appliance cannot meet again the requirement of neutral pole closed conversion in transfer process.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole.
In order to achieve the above object, the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole provided by the invention comprises pedestal, eight groups of bottom fixed contacts, two moving contact groups, pedestal upper cover, eight top fixed contacts, two driving shafts and drive plates, wherein the upper end left and right sides of pedestal is respectively equipped with the neutral pole of conventional power supply, A, B, the neutral pole of C three-phase input end and stand-by power supply, A, B, C three-phase input end, loaded neutral pole is established in bottom, A, B, C three-phase output end, middle part is divided into symmetrical two parts, Ban Bu edge, left and right is respectively equipped with a rectangular frame, on pedestal outer surface in each framework, be provided with from left to right four groups of bottom fixed contacts, every group of bottom fixed contact is comprised of upper and lower two horizontally disposed fixed contact sheets, and superposed four fixed contact sheets respectively with conventional power supply neutral pole, A, B, the neutral pole of C three-phase input end or stand-by power supply, A, B, C three-phase input end is connected, four fixed contact sheets that are positioned at bottom respectively with the neutral pole of load, A, B, C three-phase output end joins, in each framework, in the mode that can move left and right, be provided with a moving contact group, each moving contact group is by contact supporting, one group of neutral pole moving contact and A, B, C mutually three groups of moving contacts forms, wherein on contact supporting, along fore-and-aft direction, in the mode at interval, four row perforates have been formed through, every row perforate arranges hole by upper and lower two corresponding moving contacts and forms, two moving contacts of the leftmost side arrange in hole and run through respectively two neutral pole moving contact sheets are set, all the other six moving contacts arrange and in hole, run through respectively two A, B, C phase movable contact headpin, contact supporting middle part is formed with a circular hole simultaneously, pedestal upper cover covers top, pedestal middle part, and position, end face both sides is formed with respectively a driving shaft through hole, top fixed contact is a font, the end face of eight top fixed contacts is arranged on the end face outer surface of pedestal upper cover side by side, two sidewalls run through that to extend to pedestal upper cover after the end face of pedestal upper cover inner and corresponding up and down with the position of above-mentioned eight groups of bottom fixed contacts, simultaneously when connecting conventional or stand-by power supply, each moving contact arranges two neutral pole moving contact sheets and two A in hole, B, the rear end of C phase movable contact headpin is clipped in respectively in the upper and lower side of corresponding bottom fixed contact, and front end is clipped in respectively in the upper and lower side of two sidewalls on the fixed contact of corresponding top simultaneously, the lower end of every driving shaft is from top to bottom through being inserted in the circular hole of a contact supporting after the driving shaft through hole covering on a pedestal, drive plate is arranged on the end face outside of pedestal upper cover, and its position, both sides is formed with respectively one for inserting the axis hole of driving shaft outer end.
Described A, B, the diameter of C phase movable contact headpin is less than the width of neutral pole moving contact sheet.
The driving shaft through hole covering on described pedestal and the axis hole on drive plate are the slotted hole of horizontally set.
The automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole provided by the invention can guarantee that the overlapping of certain hour appears in the two-way power supply neutral line in closing time in conventional, stand-by power supply transfer process, and there is not the situation of disjunction in the load end neutral line, so just can not cause load equipment to occur damaging, therefore eliminate potential safety hazard.In addition, this device also has reasonable in design, easy to operate, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the Automatic-turning on-off electric-appliance structure stereogram with the overlapping handoff functionality of neutral pole provided by the invention.
Fig. 2 removes structural perspective after pedestal upper cover on the automatic transfer switching electric appliance shown in Fig. 1.
Fig. 3 is pedestal and bottom static contact structure schematic diagram in the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole provided by the invention.
Fig. 4 is moving contact group schematic diagram in the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole provided by the invention.
Fig. 5 is the automatic transfer switching electric appliance moving contact group structural perspective with the overlapping handoff functionality of neutral pole provided by the invention.
Fig. 6-Fig. 8 is the automatic transfer switching electric appliance course of work schematic diagram with the overlapping handoff functionality of neutral pole provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole provided by the invention is elaborated.
As Figure 1-Figure 5, the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole provided by the invention comprises pedestal 1, eight groups of bottom fixed contacts 2, two moving contact groups 3, pedestal upper cover 4, eight top fixed contacts 5, two driving shafts 6 and drive plates 7, wherein the upper end left and right sides of pedestal 1 is respectively equipped with the neutral pole of conventional power supply, A, B, the neutral pole of C three-phase input end 8 and stand-by power supply, A, B, C three-phase input end 9, loaded neutral pole is established in bottom, A, B, C three-phase output end 10, middle part is divided into symmetrical two parts, Ban Bu edge, left and right is respectively equipped with a rectangular frame 11, on pedestal 1 outer surface in each framework 11, be provided with from left to right four groups of bottom fixed contacts 2, every group of bottom fixed contact 2 is comprised of upper and lower two horizontally disposed fixed contact sheets, and superposed four fixed contact sheets respectively with conventional power supply neutral pole, A, B, the neutral pole of C three-phase input end 8 or stand-by power supply, A, B, C three-phase input end 9 is connected, four fixed contact sheets that are positioned at bottom respectively with the neutral pole of load, A, B, C three-phase output end 10 joins, in each framework 11, in the mode that can move left and right, be provided with a moving contact group 3, each moving contact group 3 is by contact supporting 12, one group of neutral pole moving contact 13 and A, B, C mutually three groups of moving contacts 14 forms, wherein on contact supporting 12, along fore-and-aft direction, in the mode at interval, four row perforates have been formed through, every row perforate arranges hole by upper and lower two corresponding moving contacts and forms, two moving contacts of the leftmost side arrange in hole and run through respectively two neutral pole moving contact sheets are set, all the other six moving contacts arrange and in hole, run through respectively two A, B, C phase movable contact headpin, contact supporting 12 middle parts are formed with a circular hole 15 simultaneously, pedestal upper cover 4 covers pedestal 1 top, middle part, and position, end face both sides is formed with respectively a driving shaft through hole, top fixed contact 5 is a font, the end face of eight top fixed contacts 5 is arranged on the end face outer surface of pedestal upper cover 4 side by side, two sidewalls run through that to extend to pedestal upper cover 4 after the end face of pedestal upper cover 4 inner and corresponding up and down with the position of above-mentioned eight groups of bottom fixed contacts 2, simultaneously when connecting conventional or stand-by power supply, each moving contact arranges two neutral pole moving contact sheets and two A in hole, B, the rear end of C phase movable contact headpin is clipped in respectively in the upper and lower side of corresponding bottom fixed contact 2, front end is clipped in respectively in the upper and lower side of two sidewalls on corresponding top fixed contact 5 simultaneously, the lower end of every driving shaft 6 is from top to bottom through being inserted in the circular hole 15 of a contact supporting 12 after the driving shaft through hole on a pedestal upper cover 4, drive plate 7 is arranged on the end face outside of pedestal upper cover 4, and its position, both sides is formed with respectively one for inserting the axis hole 16 of driving shaft 6 outer ends.
Described A, B, the diameter of C phase movable contact headpin is less than the width of neutral pole moving contact sheet.
Driving shaft through hole on described pedestal upper cover 4 and the axis hole 16 on drive plate 7 are the slotted hole of horizontally set.
Now the automatic transfer switching electric appliance operation principle with the overlapping handoff functionality of neutral pole provided by the invention is described below: closed at conventional power supply, in the situation that stand-by power supply disconnects, be arranged in two centering utmost point moving contact sheets and six couples of A of the moving contact group 3 in left side, B, the rear end of C phase movable contact headpin will be clipped in the upper and lower side of eight bottom fixed contacts 2 in left side framework 11, front end is clipped in two sidewall upper and lower sides of four the corresponding top fixed contacts 5 in left side, at this moment conventional power supply is by bottom fixed contact 2, moving contact and top fixed contact 5 are connected with load, now the state of this device as shown in Figure 6.When needs are from conventional electrical source exchange during to stand-by power supply, under the effect of external force, drive plate 7 will move right, under the drive of drive plate 7, two driving shafts 6 move right two moving contact groups 3 of drive together, at conventional power supply, be tending towards disconnecting, when stand-by power supply is tending towards closure, because the width of neutral pole moving contact sheet is greater than A, B, the diameter of C phase movable contact headpin, the neutral pole moving contact sheet of therefore conventional mains side does not also disconnect with corresponding bottom fixed contact 2 and top fixed contact 5, and A, B, C phase movable contact headpin disconnects, simultaneously the neutral pole moving contact sheet of stand-by power supply side with corresponding bottom fixed contact 2 and top fixed contact 5 closures, A, B, C phase movable contact headpin is not yet closed, therefore make the neutral line complete overlapping switching, now the state of this device as shown in Figure 7.When drive plate 7 continues to move right, the all dynamic and static contact of conventional mains side all disconnects, the all dynamic and static contact of stand-by power supply side is all closed, completes thus the transfer process from conventional power supply to stand-by power supply, and now the state of this device as shown in Figure 8.In like manner, identical with above-mentioned steps to the transfer process of conventional power supply from stand-by power supply.
Claims (3)
1. an automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole, is characterized in that: it comprises pedestal (1), eight groups of bottom fixed contacts (2), two moving contact groups (3), pedestal upper cover (4), eight top fixed contacts (5), two driving shafts (6) and a drive plate (7), wherein the upper end left and right sides of pedestal (1) is respectively equipped with the neutral pole of conventional power supply, A, B, the neutral pole of C three-phase input end (8) and stand-by power supply, A, B, C three-phase input end (9), loaded neutral pole is established in bottom, A, B, C three-phase output end (10), middle part is divided into symmetrical two parts, Ban Bu edge, left and right is respectively equipped with a rectangular frame (11), on pedestal (1) outer surface in each framework (11), be provided with from left to right four groups of bottom fixed contacts (2), every group of bottom fixed contact (2) is comprised of upper and lower two horizontally disposed fixed contact sheets, and superposed four fixed contact sheets respectively with conventional power supply neutral pole, A, B, the neutral pole of C three-phase input end (8) or stand-by power supply, A, B, C three-phase input end (9) is connected, four fixed contact sheets that are positioned at bottom respectively with the neutral pole of load, A, B, C three-phase output end (10) joins, in each framework (11), in the mode that can move left and right, be provided with a moving contact group (3), each moving contact group (3) is by contact supporting (12), one group of neutral pole moving contact (13) and A, B, C mutually three groups of moving contacts (14) forms, wherein contact supporting (12) is upper has been formed through four row perforates along fore-and-aft direction in the mode at interval, every row perforate arranges hole by upper and lower two corresponding moving contacts and forms, two moving contacts of the leftmost side arrange in hole and run through respectively two neutral pole moving contact sheets are set, all the other six moving contacts arrange and in hole, run through respectively two A, B, C phase movable contact headpin, contact supporting (12) middle part is formed with a circular hole (15) simultaneously, pedestal upper cover (4) covers top, pedestal (1) middle part, and position, end face both sides is formed with respectively a driving shaft through hole, top fixed contact (5) is a font, the end face of eight top fixed contacts (5) is arranged on the end face outer surface of pedestal upper cover (4) side by side, two sidewalls run through that to extend to pedestal upper cover (4) after the end face of pedestal upper cover (4) inner and corresponding up and down with the position of above-mentioned eight groups of bottom fixed contacts (2), simultaneously when connecting conventional or stand-by power supply, each moving contact arranges two neutral pole moving contact sheets and two A in hole, B, the rear end of C phase movable contact headpin is clipped in respectively in the upper and lower side of corresponding bottom fixed contact (2), front end is clipped in respectively in the upper and lower side of upper two sidewalls of corresponding top fixed contact (5) simultaneously, the lower end of every driving shaft (6) is from top to bottom through being inserted in the circular hole (15) of a contact supporting (12) after the driving shaft through hole on a pedestal upper cover (4), drive plate (7) is arranged on the end face outside of pedestal upper cover (4), and its position, both sides is formed with respectively one for inserting the axis hole (16) of driving shaft (6) outer end.
2. the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole according to claim 1, is characterized in that: described A, and B, the diameter of C phase movable contact headpin is less than the width of neutral pole moving contact sheet.
3. the automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole according to claim 1, is characterized in that: the driving shaft through hole on described pedestal upper cover (4) and the axis hole (16) on drive plate (7) are the slotted hole of horizontally set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749860.0A CN103700519B (en) | 2013-12-25 | 2013-12-25 | A kind of automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749860.0A CN103700519B (en) | 2013-12-25 | 2013-12-25 | A kind of automatic transfer switching electric appliance with the overlapping handoff functionality of neutral pole |
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| CN103700519A true CN103700519A (en) | 2014-04-02 |
| CN103700519B CN103700519B (en) | 2015-11-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106252120A (en) * | 2015-06-04 | 2016-12-21 | 施耐德电器工业公司 | Dual-power transfer switch |
| CN107919722A (en) * | 2016-10-10 | 2018-04-17 | 施耐德电器工业公司 | Avoid the automatic change-over and method of neutral pole dangerous voltage |
| CN108922803A (en) * | 2018-09-06 | 2018-11-30 | 厦门尤伯电气有限公司 | A kind of phase-change switch structure |
| CN109872901A (en) * | 2019-04-16 | 2019-06-11 | 常熟开关制造有限公司(原常熟开关厂） | A kind of automatic change-over |
| CN110021485A (en) * | 2018-01-09 | 2019-07-16 | 施耐德电器工业公司 | Dual-power transfer switch |
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| DE102012107623A1 (en) * | 2011-08-24 | 2013-02-28 | Legrand France | Connector block for electrically connecting e.g. device mechanisms of multi-apparatus block, has electrical conductors insulated from each other and protruding from protective sheath over major sides, which are fixed perpendicular to ends |
| CN203659647U (en) * | 2013-12-25 | 2014-06-18 | 施耐德万高（天津）电气设备有限公司 | Automatic transfer switching equipment with neutral pole overlapping switching function |
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2013
- 2013-12-25 CN CN201310749860.0A patent/CN103700519B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102012107623A1 (en) * | 2011-08-24 | 2013-02-28 | Legrand France | Connector block for electrically connecting e.g. device mechanisms of multi-apparatus block, has electrical conductors insulated from each other and protruding from protective sheath over major sides, which are fixed perpendicular to ends |
| CN202352540U (en) * | 2011-12-13 | 2012-07-25 | 施耐德万高（天津）电气设备有限公司 | Automatic conversion switch electric device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252120A (en) * | 2015-06-04 | 2016-12-21 | 施耐德电器工业公司 | Dual-power transfer switch |
| CN106252120B (en) * | 2015-06-04 | 2018-06-08 | 施耐德电器工业公司 | Dual-power transfer switch |
| CN107919722A (en) * | 2016-10-10 | 2018-04-17 | 施耐德电器工业公司 | Avoid the automatic change-over and method of neutral pole dangerous voltage |
| CN107919722B (en) * | 2016-10-10 | 2022-05-03 | 施耐德电器工业公司 | Automatic change-over switch and method for avoiding neutral pole dangerous voltage |
| CN110021485A (en) * | 2018-01-09 | 2019-07-16 | 施耐德电器工业公司 | Dual-power transfer switch |
| CN110021485B (en) * | 2018-01-09 | 2021-01-22 | 施耐德电器工业公司 | Double-power-supply change-over switch |
| CN108922803A (en) * | 2018-09-06 | 2018-11-30 | 厦门尤伯电气有限公司 | A kind of phase-change switch structure |
| CN108922803B (en) * | 2018-09-06 | 2023-12-08 | 福建尤伯科技有限公司 | Phase change switch structure |
| CN109872901A (en) * | 2019-04-16 | 2019-06-11 | 常熟开关制造有限公司(原常熟开关厂） | A kind of automatic change-over |
| CN109872901B (en) * | 2019-04-16 | 2024-02-02 | 常熟开关制造有限公司(原常熟开关厂） | Automatic change-over switch |
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| CN103700519B (en) | 2015-11-18 |
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