CN105207094A - Maintenance bypass switch lock device for EPS emergency power supply - Google Patents
Maintenance bypass switch lock device for EPS emergency power supply Download PDFInfo
- Publication number
- CN105207094A CN105207094A CN201510683111.1A CN201510683111A CN105207094A CN 105207094 A CN105207094 A CN 105207094A CN 201510683111 A CN201510683111 A CN 201510683111A CN 105207094 A CN105207094 A CN 105207094A
- Authority
- CN
- China
- Prior art keywords
- bypass switch
- maintenance bypass
- power supply
- emergency power
- open
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
Abstract
The invention discloses a maintenance bypass switch lock device for an EPS emergency power supply. The maintenance bypass switch lock device is characterized by comprising a supporting bracket fixed on a maintenance bypass switch as well as an opening and closing mechanism which is movably connected onto the supporting bracket and is in closed ring lock with the supporting bracket through a lock; a limiting mechanism is arranged on the opening and closing mechanism; when the opening and closing mechanism is in closed ring lock with the supporting bracket, the limiting mechanism can limit the movement of operating poking heads of the maintenance bypass switch in any brake opening or closing state. The state that in the working or maintaining period of the EPS emergency power supply, the maintenance bypass switch has high possibility of carelessly being in the non-ideal working condition is overcome, and the protecting effect on equipment and personnel safety can be better and practical.
Description
Technical field
the present invention relates to a kind of EPS emergency power supply maintenance bypass switch locker.
Background technology
known conventional EPS emergency power supply is made up of devices such as the charger be arranged in EPS power cabinet, inverter, storage battery and diverter switches usually; when main power source exception or power-off, the DC power supply of storage battery is reverse into AC power, guarantees to carry out uninterrupted power supply to output branch road.Shown in its schematic diagram composition graphs 1: wherein diverter switch is made up of total power switch, main power switch, maintenance bypass switch, main power source energize either contactor and emergency power supply energize either contactor etc.During input power normal power supply, total power switch, main power switch, main power source energize either contactor are in closing position, and emergency power supply energize either contactor and maintenance bypass switch are in open position; When input voltage is abnormal or lose; total power switch, main power switch maintain closing position; maintenance bypass switch continues to keep open position, and main power source energize either contactor separating brake, emergency power supply energize either contactor close a floodgate, and produces alternating current to output branch road uninterrupted power supply by inverter.In these cases, maintenance bypass switch must be in open position.
when charger, inverter, storage battery and power source management controller etc. break down or damage need repairing time, main power switch, main power source energize either contactor and emergency power supply energize either contactor must be made to be in open position, total power switch and maintenance bypass switch are in closing position, guarantee not affect the normal work exporting branch road, in order to avoid cause great equipment or personnel's accident in the maintenance period.In these cases, maintenance bypass switch must be in closing position.
known by describing above, the operating state of maintenance bypass switch is vital, closes a floodgate or open position is improper can produce serious potential safety hazard.Many EPS manufacturing enterprises, reminding operation and maintenance personnel by putting up caution slogan near maintenance bypass switch, careful operation, avoiding the service position of maintenance bypass switch to occur entanglement, cause serious security incident.But current maintenance bypass switch lacks a kind of special locker to the artificial locking of its enforcement; it is be in open state completely; there is the possibility causing being in imperfect operating state because of unexpected touching, warning and the protected effect of reality are unsatisfactory.
Summary of the invention
the present invention seeks to: a kind of EPS emergency power supply maintenance bypass switch locker is provided; it can overcome EPS emergency power supply in operation or maintenance period; maintenance bypass switch is easily in the situation of imperfect operating state because of carelessness, plays better and the protected effect of reality in equipment and personal safety.
technical scheme of the present invention is: a kind of EPS emergency power supply maintenance bypass switch locker, it is characterized in that this locker comprises the bracket that is fixed on maintenance bypass switch and to be movably connected on described bracket and by lockset and the sealed open-and-close mechanism of bracket closed loop, described open-and-close mechanism is provided with position-limit mechanism, when described open-and-close mechanism and bracket closed loop sealed time, the restriction of described position-limit mechanism be in open a sluice gate arbitrarily or "on" position time maintenance bypass switch on operation shifting block movable.
further, the back of maintenance bypass switch described in the present invention is provided with and coordinates for same C shape guide rail the groove installed, and described bracket is placed in described groove, then is fixed by the C shape guide rail loaded.
further, open-and-close mechanism described in the present invention is also provided with the sensitive switch of interlocking with the control circuit of EPS emergency power supply, for exporting the block signal of locker, when open-and-close mechanism closes, described sensitive switch exports described block signal to activate described control circuit work.
in the present invention, the control circuit of the EPS emergency power supply of indication is well known to those skilled in the art, and it is electrically connected with maintenance bypass switch, mainly comprises charger and battery feed management control circuit and inverter control circuit two parts.When the open-and-close mechanism of locker is closed and when maintenance bypass switch is locked in closing position, open-and-close mechanism triggers sensitive switch action, the block signal that this sensitive switch exports activates above-mentioned control circuit and sends " charger quits work " signal, charger stops to storage battery power supply, send " inverter quits work " signal simultaneously, inverter stops powering to the load, and main power source contactor and EPS power contactor disconnect, now, from charger to inverter, be all in power failure state, when guaranteeing that EPS keeps in repair personnel and equipment in a safe condition.When the open-and-close mechanism of locker is closed and when maintenance bypass switch is locked in open position, open-and-close mechanism triggers sensitive switch action, the signal of this sensitive switch is as one of them necessary condition, when other conditions meet, activate above-mentioned control circuit and send " charger operation " signal, charger is to storage battery power supply, send " inverter work " signal simultaneously, main power source contactor disconnects, and EPS contactor closes, and inverter powers to the load.
it is to be noted that sensitive switch described in the present invention only provides the signal of activation " control circuit work ", specifically how to work as control circuit, be judged voluntarily by the divide-shut brake situation of the chip of control circuit according to maintenance bypass switch, concrete principle as in the previous paragraph.
further, the warning reminding device be electrically connected with described sensitive switch is also comprised in the present invention, when open-and-close mechanism is in closure state, also namely sends at sensitive switch and while block signal drives the control circuit work of EPS emergency power supply, to trigger that the work of described warning reminding device is in the close position with open-and-close mechanism described in annunciator administrative staff, control circuit works.Certainly, described warning reminding device can be the warning reminding equipment that buzzer etc. transmits sound, and also can be the light emitting-type warning reminding equipment such as warning lamp, can also be the warning reminding equipment of the known above-mentioned acoustooptic form of R. concomitans certainly.
preferably, sensitive switch described in the present invention adopts mechanical position limitation formula sensitive switch or proximity sensitive switch or photoelectric type sensitive switch.
further, bracket described in the present invention is U-shaped bracket, and described open-and-close mechanism is left and right sub-loose-leaf hinged with described U-shaped bracket two ends respectively, sealed by described lockset between described left and right sub-loose-leaf.
further, position-limit mechanism described in the present invention is arranged at least one in described left and right loose-leaf, this position-limit mechanism is the upper and lower spacing window separated by middle crosspiece, when maintenance bypass switch closes a floodgate, described operation shifting block embeds upper limit window cannot be movable, when maintenance bypass switch separating brake, described operation shifting block embeds lower limit window cannot be movable.
further, bracket described in the present invention is U-shaped bracket, and described open-and-close mechanism is the integral type loose-leaf hinged with U-shaped bracket one end, described integral type loose-leaf and the U-shaped bracket other end sealed by described lockset closed loop.
further, position-limit mechanism described in the present invention is the upper and lower spacing window being arranged on described integral type loose-leaf and being separated by middle crosspiece, when maintenance bypass switch closes a floodgate, described operation shifting block embeds upper limit window cannot be movable, when maintenance bypass switch separating brake, described operation shifting block embeds lower limit window cannot be movable.
further, maintenance bypass switch described in the present invention is miniature circuit breaker.
advantage of the present invention is:
1. the present invention implements artificial locking by the form of snap close to the maintenance bypass switch after combined floodgate or separating brake; prevent the operation shifting block on it from changing operating state easily; compare prior art and overcome EPS emergency power supply in operation or maintenance period; maintenance bypass switch is easily in the situation of imperfect operating state because of carelessness, thus in equipment and personal safety, play the better and protected effect of reality.Especially compare the mode adopting caution slogan to remind, the device of this case is more specifically more practical.
adjusting the operating state of maintenance bypass switch as needed, by special personnel, lockset must be opened with key, after opening open-and-close mechanism (loose-leaf), can carry out.
2. the present invention realizes the interlocking with EPS emergency power supply control circuit further by the sensitive switch on open-and-close mechanism, only have when open-and-close mechanism closed (locker locked state), the work of described sensitive switch ability Drive and Control Circuit, and the synchronous trigger alarm alarm set of energy, facilitate the carrying out that alert device administrative staff can be safe such as to connect a series of work such as emergency power supply, maintenance charger, inverter, storage battery and controller, thus further enhancing security protection performance of the present invention.
3. the present invention is before tank bracket maintenance bypass switch being installed to EPS power cabinet, namely be fixed in advance on the body of maintenance bypass switch, with EPS power cabinet tank bracket mounting panel between without any need for installing hole or support, not only structure is simple, assemble also more convenient, nor affect or interfere the installation side by side of other switches, for existing EPS emergency power supply, there is higher adaptability.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is existing EPS emergency power supply general principle figure;
fig. 2 is detaching structure schematic diagram of the present invention;
fig. 3 is the assembly structure schematic diagram of the present invention on maintenance bypass switch (separating brake locked state).
wherein: 1, maintenance bypass switch; 1a, operation shifting block; 1b, groove; 2, bracket; 3, lockset; 4, sensitive switch; 5, loose-leaf is parted on the left side; 6, loose-leaf is parted on the right side; 7, crosspiece; 8, upper limit window; 9, lower limit window; 10, crimping; 11, latch; 12, jump ring; 13, support.
Embodiment
embodiment: shown in composition graphs 2 ~ Fig. 3, be the embodiment of a kind of EPS emergency power supply of the present invention maintenance bypass switch locker, be directly assemblied on maintenance bypass switch 1, the maintenance bypass switch 1 in this example is miniature circuit breaker.Being constructed as follows of described locker: bracket 2, lockset 3, sensitive switch 4 and left and right sub-loose-leaf 5,6.Bracket 2 in this example is U-shaped bracket, and the back of described maintenance bypass switch 1 is provided with the groove 1b installed for the cooperation of same C shape guide rail (not shown in FIG.), and described bracket 2 is placed in described groove 1b, then is fixed by the C shape guide rail loaded.
shown in composition graphs 2, described left and right sub-loose-leaf 5,6 is hingedly mounted on the two ends of bracket 2, what concrete articulated manner adopted is the mode that crimping 10 adds latch 11, to part loose-leaf 5 on the left side, it has with the homogeneous body in connection edge of bracket 2 is curved the crimping 10 coordinated, adopt jump ring 12 to fix latch 11 after inserting latch 11, making to part loose-leaf 5 on the left side can around latch 11 opposing brackets 2 pivotable.Sealed by described lockset 3 between described left and right sub-loose-leaf 5,6.
left and right loose-leaf 5,6 described in this example all arranges position-limit mechanism, described position-limit mechanism is the upper and lower spacing window 8,9 separated by middle crosspiece 7, when maintenance bypass switch 1 closes a floodgate (operation shifting block 1a lifts), described operation shifting block 1a embeds upper limit window 8 cannot be movable, when maintenance bypass switch 1 separating brake (operation shifting block 1a falls), described operation shifting block 1a embeds lower limit window 9 cannot be movable, specifically as shown in Figure 3.
part the sensitive switch 4 loose-leaf 6 being arranged and interlocks with the control circuit of EPS emergency power supply described in this example on the right side, for exporting the block signal of locker, described sensitive switch 4 is photoelectric type sensitive switch.When left and right sub-loose-leaf 5,6 is opened, described sensitive switch 4 normally opened contact is in open position, normally-closed contact is in the close position, now sensitive switch 4 cannot export block signal, therefore control circuit does not work; When left and right sub-loose-leaf 5,6 is sealed by lockset 3, the normally opened contact of described sensitive switch 4 is in the close position, normally-closed contact is in open position, and now sensitive switch 4 exports block signal with activation control circuit work.
the same with routine techniques, in the present invention, the control circuit of the EPS emergency power supply of indication is well known to those skilled in the art, and it is electrically connected with maintenance bypass switch, mainly comprises charger and battery feed management control circuit and inverter control circuit two parts.When the open-and-close mechanism of locker is closed and when maintenance bypass switch 1 is locked in closing position, open-and-close mechanism triggers sensitive switch 4 action, the block signal that this sensitive switch 4 exports activates above-mentioned control circuit and sends " charger quits work " signal, charger stops to storage battery power supply, send " inverter quits work " signal simultaneously, inverter stops powering to the load, and main power source contactor and EPS power contactor disconnect, now, from charger to inverter, be all in power failure state, when guaranteeing that EPS keeps in repair personnel and equipment in a safe condition.When the open-and-close mechanism of locker is closed and when maintenance bypass switch 1 is locked in open position, open-and-close mechanism triggers sensitive switch action, the signal of this sensitive switch 4 is as one of them necessary condition, when other conditions meet, activate above-mentioned control circuit and send " charger operation " signal, charger is to storage battery power supply, send " inverter work " signal simultaneously, main power source contactor disconnects, and EPS contactor closes, and inverter powers to the load.
it is to be noted that sensitive switch 4 described in the present invention only provides the signal of activation " control circuit work ", specifically how to work as control circuit, be judged voluntarily by the divide-shut brake situation of the chip of control circuit according to maintenance bypass switch 1, concrete principle as in the previous paragraph.
the warning reminding device (not shown in FIG.) be electrically connected with described sensitive switch 4 is also comprised in this example, when open-and-close mechanism is in closure state, also namely send while block signal drives the control circuit work of EPS emergency power supply at sensitive switch 4 and trigger the work of described warning reminding device to inform open-and-close mechanism described in equipment management personnel at a distance (also namely state locked by the locker of maintenance bypass switch 1) in the close position, control circuit works, thus facilitate the carrying out that alert device administrative staff can be safe such as to connect emergency power supply, maintenance charger, inverter, the a series of work such as storage battery and controller.
the present invention implements artificial locking by the form of snap close to the maintenance bypass switch 1 after combined floodgate or separating brake; prevent the operation shifting block 1a on it from changing operating state easily; compare prior art and overcome EPS emergency power supply in operation or maintenance period; maintenance bypass switch 1 is easily in the situation of imperfect operating state because of carelessness, thus in equipment and personal safety, play the better and protected effect of reality.Especially compare the mode adopting caution slogan to remind, the device of this case is more specifically more practical.
certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications done according to the Spirit Essence of main technical schemes of the present invention, all should be encompassed within protection scope of the present invention.
Claims (10)
1. an EPS emergency power supply maintenance bypass switch locker, it is characterized in that this locker comprises the bracket (2) that is fixed on maintenance bypass switch (1) and is movably connected in described bracket (2) go up and pass through lockset (3) open-and-close mechanism sealed with bracket (2) closed loop, described open-and-close mechanism is provided with position-limit mechanism, when described open-and-close mechanism and bracket (2) closed loop sealed time, the restriction of described position-limit mechanism be in open a sluice gate arbitrarily or "on" position time maintenance bypass switch (1) on operation shifting block (1a) movable.
2. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 1, it is characterized in that maintenance bypass switch (1) back is provided with and coordinate for same C shape guide rail the groove (1b) installed, described bracket (2) is placed in described groove (1b), then is fixed by the C shape guide rail loaded.
3. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 1, it is characterized in that described open-and-close mechanism being also provided with the sensitive switch (4) of interlocking with the control circuit of EPS emergency power supply, for exporting the block signal of locker, when open-and-close mechanism closes, described sensitive switch (4) exports described block signal to activate described control circuit work.
4. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 3, characterized by further comprising the warning reminding device be electrically connected with described sensitive switch (4), when open-and-close mechanism is in closure state, described sensitive switch (4) triggers the work of described warning reminding device and works with the control circuit in the close position, described of open-and-close mechanism described in annunciator administrative staff.
5. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 3, is characterized in that described sensitive switch (4) adopts mechanical position limitation formula sensitive switch or proximity sensitive switch or photoelectric type sensitive switch.
6. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 1, it is characterized in that described bracket (2) is for U-shaped bracket, described open-and-close mechanism is left and right sub-loose-leaf (5,6) hinged with described U-shaped bracket two ends respectively, sealed by described lockset (3) between described left and right sub-loose-leaf (5,6).
7. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 6, it is characterized in that described position-limit mechanism is arranged in described left and right loose-leaf (5,6) at least one on, this position-limit mechanism is the upper and lower spacing window (8,9) separated by middle crosspiece (7), when maintenance bypass switch (1) closes a floodgate, described operation shifting block (1a) embeds upper limit window (8) cannot be movable, when maintenance bypass switch (1) separating brake, described operation shifting block (1a) embeds lower limit window (9) cannot be movable.
8. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 1, it is characterized in that described bracket (2) is for U-shaped bracket, described open-and-close mechanism is the integral type loose-leaf hinged with U-shaped bracket one end, described integral type loose-leaf and the U-shaped bracket other end sealed by described lockset (3) closed loop.
9. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 8, it is characterized in that described position-limit mechanism is for being arranged on the upper and lower spacing window (8,9) separated on described integral type loose-leaf and by middle crosspiece (7), when maintenance bypass switch (1) closes a floodgate, described operation shifting block (1a) embeds upper limit window (8) cannot be movable, when maintenance bypass switch (1) separating brake, described operation shifting block (1a) embeds lower limit window (9) cannot be movable.
10. a kind of EPS emergency power supply maintenance bypass switch locker according to claim 1 or 2 or 7 or 9, is characterized in that described maintenance bypass switch (1) is miniature circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683111.1A CN105207094B (en) | 2015-10-20 | 2015-10-20 | A kind of EPS emergency power supplies maintenance bypass switch locker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510683111.1A CN105207094B (en) | 2015-10-20 | 2015-10-20 | A kind of EPS emergency power supplies maintenance bypass switch locker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105207094A true CN105207094A (en) | 2015-12-30 |
| CN105207094B CN105207094B (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510683111.1A Expired - Fee Related CN105207094B (en) | 2015-10-20 | 2015-10-20 | A kind of EPS emergency power supplies maintenance bypass switch locker |
Country Status (1)
| Country | Link |
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| CN (1) | CN105207094B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223752A (en) * | 2016-08-30 | 2016-12-14 | 沃克斯电梯（中国）有限公司 | Machine room switch latch |
| CN109802317A (en) * | 2019-02-25 | 2019-05-24 | 志纳电器有限公司 | EPS fire-fighting emergency power supply safety device |
| CN110323087A (en) * | 2019-06-26 | 2019-10-11 | 江苏银佳电子设备有限公司 | A kind of EPS emergency power supply maintenance bypass switch locker |
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| CN205051215U (en) * | 2015-10-20 | 2016-02-24 | 上海华欣民福电气科技有限公司 | EPS emergency power source is with maintenance the bypass switch locking device |
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| CN201417721Y (en) * | 2009-06-08 | 2010-03-03 | 常熟开关制造有限公司(原常熟开关厂） | Electromagnetic short circuit protecting device of circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106223752A (en) * | 2016-08-30 | 2016-12-14 | 沃克斯电梯（中国）有限公司 | Machine room switch latch |
| CN109802317A (en) * | 2019-02-25 | 2019-05-24 | 志纳电器有限公司 | EPS fire-fighting emergency power supply safety device |
| CN109802317B (en) * | 2019-02-25 | 2024-03-15 | 志纳电器有限公司 | Safety protection device for EPS fire emergency power supply |
| CN110323087A (en) * | 2019-06-26 | 2019-10-11 | 江苏银佳电子设备有限公司 | A kind of EPS emergency power supply maintenance bypass switch locker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105207094B (en) | 2017-07-07 |
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Granted publication date: 20170707 Termination date: 20171020 |