CN205422818U - NULL portable blower motor switch warning assembly - Google Patents
NULL portable blower motor switch warning assembly Download PDFInfo
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- CN205422818U CN205422818U CN201521078440.5U CN201521078440U CN205422818U CN 205422818 U CN205422818 U CN 205422818U CN 201521078440 U CN201521078440 U CN 201521078440U CN 205422818 U CN205422818 U CN 205422818U
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Abstract
The utility model discloses a NULL portable blower motor switch warning assembly belongs to local ventilation field in the pit. The utility model discloses a portable blower motor switch part, the alarm instruction part, the portable blower motor switch part is including transformer BK, BK's primary winding leading -out terminal and voltage grade option terminal SW concatenate, back and portable blower motor main circuit connect, BK's a secondary winding M1 leading -out terminal and the two safety circuit of portable blower motor switch are connected, the alarm instruction part is including the alarm instruction circuit, BK sets up 1 the 2nd secondary winding M2, provide the power for the alarm instruction circuit, one of them leading -out terminal of M2 divide into the three routes, another leading -out terminal of three routes and M2 forms parallelly connected return circuit, pilot lamp HR1 has concatenated respectively, the normally closed switch and the pilot lamp of two switch safety circuit's contactor, audible -visual annunciator. The utility model discloses directly be device power supplies such as relevant indication and warning, need not to lay in addition the power, and the quick simple and convenient preliminary judgement source of failure in back appears in the trouble.
Description
Technical field
This utility model belongs to local ventilation field, down-hole, more particularly, it relates to a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly.
Background technology
The gas gushed out from rib, goaf is the root causing mine gas disaster, owing to coal production persistently to be carried out, so it is inevitable that this gas is gushed out continuously.For ensureing regulation in production safety, " safety regulations in coal mine ": separate ventilation must be carried out in level of production face and exploiting field；Adopt, dig work surface and should carry out independent ventilation；Digging laneway must use whole wind pressure ventilation or booster to ventilate.Ventilating system is the center of mine safety management, first consist in the important function ventilated for gas administration, local ventilation constitutes the foundation for security of whole shaft production, adopt, dig work surface as production link most important under mine, down-hole portable blower is responsible for the vital task of air supply of working face, especially at highly gassy mine, the blowing-out of short time all can cause gas exceeding limit, works the mischief to mine safety production.Accordingly, as office be casually arranged with standby in the normal operation of portable blower motor of most important part be the important guarantee adopting, digging work surface safety in production under mine.
Also just because of higher due to gas density under mine; so; the switch of portable blower motor is the Flameproof and intrinsically safe portable blower motor switch using many group intrinsic safety type relay compositions; the power supply means of its relevant protection of common portable blower motor switch and warning device are often singly to lay power supply circuits circuit and power supply unit for this; it is additionally arranged labor intensity and complicated procedures, increases plant maintenance amount.
" installing the discussion of automatic speech alarm about down-hole portable blower switch " (Wang Wenyi, Zhong Xincheng is published in Research on Problems the 158th phase) in select a normally opened contact in each loop in double loop portable blower switch to use mode in parallel, connect alarm, wherein, the UPS uninterruption power source in the KJ85 remote electric power system of colliery is used again to do the permanent power source of phonetic alarm.In this technical scheme, no matter portable blower switch is I loop or the tripping operation of II loop, and alarm all can be reported to the police, sent corresponding dedicated voice in action.But the power supply circuits circuit individually laid for phonetic alarm and power supply unit add cost and plant maintenance amount undoubtedly, make program more loaded down with trivial details.
The warning system whether foundation monitoring portable blower motor normally works is to ensure that the important means that portable blower motor is properly functioning, in general, the reason without plan blowing-out accident of portable blower motor includes that power loss, portable blower motor switch are not normal and includes the fault of host machine part of portable blower motor and air duct etc..Digging maintenance electrician's rule of operation specifies, after underground power supply system breaks down, it is necessary to ascertain the reason, finds out trouble point, after fixing a breakdown can power transmission, forbid forced power transmission or by the method for strong power transmission lookup fault.So, the most simple and quick determine that the source of failure is problem demanding prompt solution in prior art for fixing a breakdown.
Normally opened contact in portable blower switching circuitry in parallel in above-mentioned prior art " installing the discussion of automatic speech alarm about down-hole portable blower switch "; can effectively predict portable blower without the problem of portable blower switch trip in plan blowing-out accident, but cause the faults such as the specifically portable blower switch repeat circuit of portable blower switch trip to cause switch not normal or portable blower power loss has no idea effectively to detect.Especially when power loss, phonetic alarm can report I loop and II loop fault simultaneously, it is impossible to effective quickly failure judgement source.Chinese Patent Application No. 201210178091.9, filing date 2012.06.01, invention and created name is: a kind of Power-loss warning device of coal mine local fan backup power, using normally-closed contact as the relay of warning circuit normal opened contact in this invention, described relay is serially connected with the outfan of described transformator, relay, warning power supply, alarm the warning circuit being composed in series is in parallel with stand-by circuit.Actually this invention also can cause warning circuit to work if switch trips because of relay damaged, and cannot be distinguished by the source that fault is real, and in this invention, in order to ensure the reliability of warning power supply, do not use the power supply of portable blower switch itself but use the 127V mains lighting supply of switch external, add cost and plant maintenance amount." development of portable blower power failure blowing-out monitoring alarm device " (Zhang Xubo, Li Yongjun, Guo Fangxing, State of Zhao's ring, Cui Zhonghe, Wang Wenyi is published in practical technique the 185th phase) in sensor is set at portable blower air duct, during authorities' pectinid cylinder blowing-out, alarm equipment alarm is pointed out, but this technical scheme can not distinguish the failure cause of portable blower blowing-out, and this technical scheme is as other technology existing, be all use outer power supply source be that alarm is powered.
Utility model content
1. utility model to solve the technical problem that
For solving the deficiencies in the prior art, this utility model provides a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly.Controlling the capacity of transformator in increasing switch in the technical solution of the utility model, set up a power supply winding, switch can directly be powered for devices such as relevant instruction and warnings, without additionally laying power supply, cost-effective and program, reduces plant maintenance work, simple and practical.And the second Secondary Winding set up in utilizing switch in the technical program connects warning indicating circuit, the normally-closed contact etc. relevant to the catalyst in portable blower motor switch safety circuit is set, coordinate the display lamp in portable blower motor switch safety circuit again, can preliminary failure judgement fast and convenient after fault occurs originate, shorten troubleshooting time, recover as early as possible to ventilate.
2. technical scheme
A kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, including portable blower motor switching part and warning indicating section, described portable blower motor switching part includes transformator BK, winding terminal of described transformator BK selects terminal SW to concatenate with electric pressure, afterwards with portable blower motor main circuit connecing, the first Secondary Winding M1 leading-out terminal of described transformator BK is connected with portable blower motor switch safety circuit；Described warning indicating section includes that one second Secondary Winding M2 set up by warning indicating circuit, described transformator BK, and described second Secondary Winding M2 provides power supply for warning indicating circuit.
As further improvement of the utility model; described portable blower motor switch safety circuit includes intellective protector JDB, guide plug-in unit XDJ and relevant relay, catalyst; described two leading-out terminals of first Secondary Winding M1 connect 5# wire and 9# wire respectively; the other end of described 5# wire accesses protection node 4 foot of intellective protector JDB; the other end of described 9# wire divides two-way; protection node 9 foot of intellective protector JDB is accessed on one road, and the B8 foot of guide's plug-in unit is accessed on another road；Protection node 3 foot of intellective protector JDB is connected by the A8 foot of 6# wire with guide plug-in unit XDJ；Described intellective protector JDB protects the coil being serially connected with protector internal relay between node 9 foot and protection node 4 foot, between protection node 4 foot and protection node 3 foot, is serially connected with the normally opened contact of aforementioned protector internal relay；Described portable blower motor switch safety circuit is double safety return circuits, including I loop and II loop, wherein:
The circuit structure in I loop is as follows: start button QA1 concatenates with the relay J 1 within guide plug-in unit XDJ, and A8 foot is accessed in rear one end, the other end accesses B8 foot；The normally opened contact of described relay J 1, auxiliary reclay CJ1 concatenate with display lamp HL1, after be connected in parallel on the first Secondary Winding M1 two ends, the normally opened contact of described auxiliary reclay CJ1, catalyst CK1 concatenate with display lamp HL3, after be connected in parallel on the first Secondary Winding M1 two ends, three groups of normally opened contacts of described catalyst CK1 are serially connected with on the three-phase power line of portable blower motor main circuit；
The circuit structure in II loop is as follows: start button QA2 concatenates with the relay J 3 within guide plug-in unit XDJ, and A8 foot is accessed in rear one end, the other end accesses B8 foot；The normally opened contact of described relay J 3, auxiliary reclay CJ2 concatenate with display lamp HL1, after be connected in parallel on the first Secondary Winding M1 two ends, the normally opened contact of described auxiliary reclay CJ2, catalyst CK2 concatenate with display lamp HL4, after be connected in parallel on the first Secondary Winding M1 two ends, three groups of normally opened contacts of described catalyst CK2 are serially connected with on the three-phase power line of portable blower motor main circuit；
Described stop button TA and stop button TA1 concatenates in the control loop of guide plug-in unit XDJ, controls the power supply in loop for cutting off guide plug-in unit XDJ；
Described warning indicating circuit is serially connected with the second Secondary Winding M2 two ends, one of them leading-out terminal of second Secondary Winding M2 is divided into three tunnels, three tunnels form loop in parallel with another leading-out terminal of the second Secondary Winding M2, wherein first loop is serially connected with display lamp HR1, is serially connected with the normally-closed contact of catalyst CK2, display lamp HR2 and audible-visual annunciator BJ1 in second loop；3rd loop is serially connected with the normally-closed contact of catalyst CK1, display lamp HR3 and audible-visual annunciator BJ2.
As further improvement of the utility model, described audible-visual annunciator BJ1 connects with switch K1, and audible-visual annunciator BJ2 connects with switch K2.
As further improvement of the utility model, described intellective protector JDB is ZSA intellective protector.
As further improvement of the utility model, described catalyst CK1 and catalyst CK2 is vacuum contactor, and described start button QA1, start button QA2, stop button TA and stop button TA1 is this Anyuan control button.
As further improvement of the utility model, described display lamp HL1, display lamp HL1, display lamp HL3, display lamp HL4, display lamp HR1, display lamp HR2, display lamp HR3, audible-visual annunciator BJ1 and audible-visual annunciator BJ2 are arranged at outside portable blower motor switch.
3. beneficial effect
Use the technical scheme that this utility model provides, compared with prior art, there is following remarkable result:
(1) a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, the capacity of transformator is controlled in portable blower motor switching part increases regular tap, set up one second Secondary Winding, can be that the warning indicating circuit of warning indicating section is directly powered, without additionally laying power circuit, cost-effective, save numerous and diverse program, decrease the workload of plant maintenance, save program and workload.
(2) a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, the second Secondary Winding set up in utilizing switch connects warning indicating circuit, the normally-closed contact etc. relevant to the catalyst in portable blower motor switch safety circuit is set, coordinate the display lamp in portable blower motor switch safety circuit again, can preliminary failure judgement fast and convenient after fault occurs originate, shorten troubleshooting time, recover as early as possible to ventilate.
(3) a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, portable blower motor switching part takes double safety return circuit, after ging wrong in a loop, another loop can be used to replace, adding the service life of switch, portable blower motor fan uninterruptedly uses guarantee production safety.ZSA intellective protector is connected in inlet wire road with guide's plug-in unit, coordinates the use of relay, it is achieved that lock between air and electricity function, and catalyst uses vacuum contactor, all meets the demand of ore deposit underground work.
(4) a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, start button and stop button are this Anyuan control button and use vacuum, can be arranged far from the place of air duct, it is simple to operation.
(5) a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, rational in infrastructure, principle is simple, cost is relatively low, use easy to spread.
Accompanying drawing explanation
Fig. 1 is the circuit diagram that Flameproof and intrinsically safe portable blower motor switch of the present utility model sets up Secondary Winding；
Fig. 2 is portable blower motor switch warning assembly breaker in middle partial circuit schematic diagram of the present utility model；
Fig. 3 is warning indicating section circuit diagram in portable blower motor switch warning assembly of the present utility model.
Detailed description of the invention
For further appreciating that content of the present utility model, in conjunction with accompanying drawing, this utility model is described in detail.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly of the present utility model, including portable blower motor switching part and warning indicating section, described portable blower motor switching part includes transformator BK, winding terminal of described transformator BK selects terminal SW to concatenate with electric pressure, afterwards with portable blower motor main circuit connecing, the first Secondary Winding M1 leading-out terminal of described transformator BK is connected with portable blower motor switch safety circuit；
Described portable blower motor switch safety circuit includes ZSA intellective protector JDB, guide plug-in unit XDJ and relevant relay, catalyst; described two leading-out terminals of first Secondary Winding M1 connect 5# wire and 9# wire respectively; the other end of described 5# wire accesses protection node 4 foot of intellective protector JDB; the other end of described 9# wire divides two-way; protection node 9 foot of intellective protector JDB is accessed on one road, and the B8 foot of guide's plug-in unit is accessed on another road；Protection node 3 foot of intellective protector is connected by the A8 foot of 6# wire with guide plug-in unit XDJ；Described intellective protector JDB protects the coil being serially connected with protector internal relay between node 9 foot and protection node 4 foot, is serially connected with and the normally opened contact of aforementioned protector internal relay between protection node 4 foot and protection node 3 foot；Described portable blower motor switch safety circuit is double safety return circuits, including I loop and II loop, wherein:
The circuit structure in I loop is as follows: start button QA1 concatenates with the relay J 1 within guide plug-in unit XDJ, and A8 foot is accessed in rear one end, the other end accesses B8 foot；The normally opened contact of described relay J 1, auxiliary reclay CJ1 concatenate with display lamp HL1, after be connected in parallel on the first Secondary Winding M1 two ends, the normally opened contact of described auxiliary reclay CJ1, catalyst CK1 concatenate with display lamp HL3, after be connected in parallel on the first Secondary Winding M1 two ends, three groups of normally opened contacts of described catalyst CK1 are serially connected with on the three-phase power line of portable blower motor main circuit；
The circuit structure in II loop is as follows: start button QA2 concatenates with the relay J 3 within guide plug-in unit XDJ, and A8 foot is accessed in rear one end, the other end accesses B8 foot；The normally opened contact of described relay J 3, auxiliary reclay CJ2 concatenate with display lamp HL1, after be connected in parallel on the first Secondary Winding M1 two ends, the normally opened contact of described auxiliary reclay CJ2, catalyst CK2 concatenate with display lamp HL4, after be connected in parallel on the first Secondary Winding M1 two ends, three groups of normally opened contacts of described catalyst CK2 are serially connected with on the three-phase power line of portable blower motor main circuit；
Described catalyst CK1 and catalyst CK2 is vacuum contactor, described stop button TA and stop button TA1 concatenates in the control loop of guide plug-in unit XDJ, control the power supply in loop for cutting off guide plug-in unit XDJ, described start button QA1, start button QA2, stop button TA and stop button TA1 is this Anyuan control button；
Described warning indicating section includes that one second Secondary Winding M2 set up by warning indicating circuit, described transformator BK, and described second Secondary Winding M2 provides power supply for warning indicating circuit.Described warning indicating circuit is serially connected with the second Secondary Winding M2 two ends, one of them leading-out terminal of second Secondary Winding M2 is divided into three tunnels, three tunnels form loop in parallel with another leading-out terminal of the second Secondary Winding M2, wherein first loop is serially connected with display lamp HR1, is serially connected with the normally-closed contact of catalyst CK2, display lamp HR2, audible-visual annunciator BJ1 and switch K1 in second loop；3rd loop is serially connected with the normally-closed contact of catalyst CK1, display lamp HR3, audible-visual annunciator BJ2 and switch K2.
Described display lamp HL1, display lamp HL1, display lamp HL3, display lamp HL4, display lamp HR1, display lamp HR2, display lamp HR3, audible-visual annunciator BJ1 and audible-visual annunciator BJ2 are arranged at outside portable blower motor switch.It should be noted that; as shown in Figure 1; in order to ensure when abnormal conditions such as circuit generation overloads; portable blower motor main circuit is avoided to disconnect; it is additionally arranged A, B, C3 normally-closed contact module and the RC circuit of D part; first the protective effect of tetra-modules of A, B, C, D disconnects portable blower circuit after making circuit abnormal, it is ensured that the normal ventilation of main circuit.
Below in conjunction with embodiment, the utility model will be further described.
Embodiment 1
nullBefore local fan ventilation，Switch K1 and switch K2 is off，After confirming that portable blower can ventilate，Guan Bi disconnecting switch GHK，The voltage of 1140V/660V selects terminal SW through electric pressure、Insurance FU，It is added to a winding of transformator BK，First Secondary Winding of transformator senses 36V alternating voltage，By 9# wire and 5# wire, voltage-drop loading at protection node 9 foot and is protected the protector internal relay two ends between node 4 foot，Protector internal relay coil obtains electric，Protect between node 4 foot and protection node 3 foot normally closed by normally opened change，Protection node 3 foot of intellective protector JDB is connected by the A8 foot of 6# wire with guide plug-in unit XDJ，The B8 foot of guide's plug-in unit is accessed on another road of 9# wire，So，The 36V being switched on guide plug-in unit XDJ powers.Now, started by press button QA1, the internal relay J 1 concatenated with start button QA1 of guide plug-in unit XDJ works, the normally opened contact J1 concatenated with auxiliary reclay CJ1 becomes normally-closed contact, display lamp HL1 is bright, auxiliary reclay CJ1 works, the normally opened contact CJ1 concatenated with catalyst CK1 therewith becomes normally-closed contact, display lamp HL3 is bright, catalyst CK1 works, three groups of normally opened contact CK1 on major loop become normally-closed contact, and the three-phase power line of portable blower motor main circuit is connected as portable blower motor power transmission, portable blower putting in blast.Here, catalyst CK1's warning indicating circuit works, and the normally-closed contact CK1 on 26# wire becomes normally opened contact simultaneously, and Guan Bi switch K2, display lamp HR3 and audible-visual annunciator BJ2 enter monitoring waiting state.
Embodiment 2
nullBefore local fan ventilation，Switch K1 and switch K2 is off，After confirming that portable blower can ventilate，Guan Bi disconnecting switch GHK，The voltage of 1140V/660V selects terminal SW through electric pressure、Insurance FU，It is added to a winding of transformator BK，First Secondary Winding of transformator senses 36V alternating voltage，By 9# wire and 5# wire, voltage-drop loading at protection node 9 foot and is protected the protector internal relay two ends between node 4 foot，Protector internal relay coil obtains electric，Protect between node 4 foot and protection node 3 foot normally closed by normally opened change，Protection node 3 foot of intellective protector JDB is connected by the A8 foot of 6# wire with guide plug-in unit XDJ，The B8 foot of guide's plug-in unit is accessed on another road of 9# wire，So，The 36V being switched on guide plug-in unit XDJ powers.Now, started by press button QA2, the internal relay J 3 concatenated with start button QA2 of guide plug-in unit XDJ works, the normally opened contact J3 concatenated with auxiliary reclay CJ2 becomes normally-closed contact, display lamp HL2 is bright, auxiliary reclay CJ2 works, the normally opened contact CJ2 concatenated with catalyst CK2 therewith becomes normally-closed contact, display lamp HL4 is bright, catalyst CK2 works, three groups of normally opened contact CK2 on major loop become normally-closed contact, and the three-phase power line of portable blower motor main circuit is connected as portable blower motor power transmission, portable blower putting in blast.Here, catalyst CK2's warning indicating circuit works, and the normally-closed contact CK2 on 14# wire becomes normally opened contact simultaneously, and Guan Bi switch K2, display lamp HR3 and audible-visual annunciator BJ2 enter monitoring waiting state.
Embodiment 3
nullBefore local fan ventilation，Switch K1 and switch K2 is off，After confirming that portable blower can ventilate，Guan Bi disconnecting switch GHK，The voltage of 1140V/660V selects terminal SW through electric pressure、Insurance FU，It is added to a winding of transformator BK，First Secondary Winding of transformator senses 36V alternating voltage，By 9# wire and 5# wire, voltage-drop loading at protection node 9 foot and is protected the protector internal relay two ends between node 4 foot，Protector internal relay coil obtains electric，Protect between node 4 foot and protection node 3 foot normally closed by normally opened change，Protection node 3 foot of intellective protector JDB is connected by the A8 foot of 6# wire with guide plug-in unit XDJ，The B8 foot of guide's plug-in unit is accessed on another road of 9# wire，So，The 36V being switched on guide plug-in unit XDJ powers.Now, started by press button QA1 and QA2, the relay J 1 and J3 work within guide plug-in unit XDJ, J1 and J3 becomes normally-closed contact, display lamp HL1 and HL2 is bright, auxiliary reclay CJ1 and CJ2 works, and normally opened contact CJ1 and CJ2 becomes normally-closed contact therewith, and display lamp HL3 and HL4 is bright, catalyst CK1 and CK2 works, three groups of normally opened contact CK1 and CK2 on major loop become normally-closed contact, and the three-phase power line of portable blower motor main circuit is connected as portable blower motor power transmission, portable blower putting in blast.Taking double loop cooperation, accordingly even when break down in a loop, another loop the most normally works, it is ensured that portable blower ventilates for a long time.Here, catalyst CK1's warning indicating circuit and CK2 works, and normally-closed contact CK1 and CK2 becomes normally opened contact simultaneously, and Guan Bi switch K1 and K2, display lamp HR2 and HR3 and audible-visual annunciator BJ1 and BJ2 enter monitoring waiting state.
Embodiment 4
When plan stops ventilating, after guaranteeing other work mechanism power-off in addition to portable blower motor, closing switch K1, K2, press stop button TA or stop button TA1, just shut off the control loop of guide plug-in unit XDJ, cause guide plug-in unit internal relay J1 or guide plug-in unit internal relay J3 release, auxiliary reclay CJ1 or auxiliary reclay CJ2 release, catalyst CK1 or the catalyst CK2 release of portable blower motor main circuit, portable blower motor power-off stops ventilating.
Embodiment 5
1 when portable blower motor switch takes double safety return circuit cooperation, after if a certain bar safety return circuit breaks down, another safety return circuit still may proceed to work, ensure that portable blower motor normally ventilates, now, normally opened contact CK1 or CK2 corresponding with this safety return circuit broken down in warning indicating circuit can become normally-closed contact, if display lamp HR2 is bright, audible-visual annunciator BJ1 reports to the police, then need to check II loop；If display lamp HR3 is bright, audible-visual annunciator BJ2 reports to the police, then need to check I loop, can vitiable relay or catalyst even if changing in loop, it is ensured that two circuit work on.
Embodiment 6
The present embodiment takes the double safety return circuit cooperation of portable blower motor switch, and when portable blower blowing-out outside the plan, by display lamp HR1, HR2, HR3 of warning indicating circuit, the working condition of audible-visual annunciator BJ1, BJ2 can tentatively quickly failure judgement be originated.
In the case of fault occurs in main power source dead electricity: display lamp HR1 does not works, now, display lamp HR2, HR3, HL1, HL2, HL3, HL4 all do not work, and audible-visual annunciator BJ1, BJ2 do not work；
When fault is because the problem that the internal flimsy vacuum contactor of portable blower motor switch damages: display lamp HR1 is bright, display lamp HR2 is bright and bright along with BJ1 sound and light alarm or display lamp HR3 and along with BJ2 sound and light alarm, now, if display lamp HR2 is bright and along with BJ1 sound and light alarm, then should check II loop, if display lamp HR3 is bright and along with BJ2 sound and light alarm, then should check I loop, and can simply judge to need with changing auxiliary reclay or catalyst according to the brightest situation of HL1, HL2, HL3 and HL4.
When fault be because portable blower host machine part break down time: display lamp HR1 is bright, HR2, HR3, BJ1, BJ2 do not work, and now, HL1, the HL3 in I loop and HL2, HL4 display lamp in II loop are the brightest.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited thereto.So, if those of ordinary skill in the art is enlightened by it, in the case of creating objective without departing from this utility model, design the frame mode similar to this technical scheme and embodiment without creative, protection domain of the present utility model all should be belonged to.
Claims (6)
1. a Flameproof and intrinsically safe portable blower motor switch warning assembly, including portable blower motor switching part and warning indicating section, described portable blower motor switching part includes transformator BK, winding terminal of described transformator BK selects terminal SW to concatenate with electric pressure, afterwards with portable blower motor main circuit connecing, the first Secondary Winding M1 leading-out terminal of described transformator BK is connected with portable blower motor switch safety circuit；Described warning indicating section includes warning indicating circuit, it is characterised in that: described transformator BK sets up one second Secondary Winding M2, and described second Secondary Winding M2 provides power supply for warning indicating circuit.
A kind of Flameproof and intrinsically safe portable blower motor switch warning assembly the most according to claim 1; it is characterized in that: described portable blower motor switch safety circuit includes intellective protector JDB, guide plug-in unit XDJ and relevant relay, catalyst; described two leading-out terminals of first Secondary Winding M1 connect 5# wire and 9# wire respectively; the other end of described 5# wire accesses protection node 4 foot of intellective protector JDB; the other end of described 9# wire divides two-way; protection node 9 foot of intellective protector JDB is accessed on one road, and the B8 foot of guide's plug-in unit is accessed on another road；Protection node 3 foot of intellective protector JDB is connected by the A8 foot of 6# wire with guide plug-in unit XDJ；Described intellective protector JDB protects the coil being serially connected with protector internal relay between node 9 foot and protection node 4 foot, between protection node 4 foot and protection node 3 foot, is serially connected with the normally opened contact of aforementioned protector internal relay；Described portable blower motor switch safety circuit is double safety return circuits, including I loop and II loop, wherein:
The circuit structure in I loop is as follows: start button QA1 concatenates with the relay J 1 within guide plug-in unit XDJ, and A8 foot is accessed in rear one end, the other end accesses B8 foot；The normally opened contact of described relay J 1, auxiliary reclay CJ1 concatenate with display lamp HL1, after be connected in parallel on the first Secondary Winding M1 two ends, the normally opened contact of described auxiliary reclay CJ1, catalyst CK1 concatenate with display lamp HL3, after be connected in parallel on the first Secondary Winding M1 two ends, three groups of normally opened contacts of described catalyst CK1 are serially connected with on the three-phase power line of portable blower motor main circuit；
The circuit structure in II loop is as follows: start button QA2 concatenates with the relay J 3 within guide plug-in unit XDJ, and A8 foot is accessed in rear one end, the other end accesses B8 foot；The normally opened contact of described relay J 3, auxiliary reclay CJ2 concatenate with display lamp HL1, after be connected in parallel on the first Secondary Winding M1 two ends, the normally opened contact of described auxiliary reclay CJ2, catalyst CK2 concatenate with display lamp HL4, after be connected in parallel on the first Secondary Winding M1 two ends, three groups of normally opened contacts of described catalyst CK2 are serially connected with on the three-phase power line of portable blower motor main circuit；
Stop button TA and stop button TA1 concatenates in the control loop of guide plug-in unit XDJ, controls the power supply in loop for cutting off guide plug-in unit XDJ；
Described warning indicating circuit is serially connected with the second Secondary Winding M2 two ends, one of them leading-out terminal of second Secondary Winding M2 is divided into three tunnels, three tunnels form loop in parallel with another leading-out terminal of the second Secondary Winding M2, wherein first loop is serially connected with display lamp HR1, is serially connected with the normally-closed contact of catalyst CK2, display lamp HR2 and audible-visual annunciator BJ1 in second loop；3rd loop is serially connected with the normally-closed contact of catalyst CK1, display lamp HR3 and audible-visual annunciator BJ2.
A kind of Flameproof and intrinsically safe portable blower motor switch warning assembly the most according to claim 2, it is characterised in that: described audible-visual annunciator BJ1 connects with switch K1, and audible-visual annunciator BJ2 connects with switch K2.
A kind of Flameproof and intrinsically safe portable blower motor switch warning assembly the most according to claim 3, it is characterised in that: described intellective protector JDB is ZSA intellective protector.
5. according to a kind of Flameproof and intrinsically safe portable blower motor switch warning assembly described in claim 3 or 4 any one, it is characterized in that: described catalyst CK1 and catalyst CK2 is vacuum contactor, described start button QA1, start button QA2, stop button TA and stop button TA1 is this Anyuan control button.
A kind of Flameproof and intrinsically safe portable blower motor switch warning assembly the most according to claim 5, it is characterised in that: described display lamp HL1, display lamp HL1, display lamp HL3, display lamp HL4, display lamp HR1, display lamp HR2, display lamp HR3, audible-visual annunciator BJ1 and audible-visual annunciator BJ2 are arranged at outside portable blower motor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521078440.5U CN205422818U (en) | 2015-12-18 | 2015-12-18 | NULL portable blower motor switch warning assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521078440.5U CN205422818U (en) | 2015-12-18 | 2015-12-18 | NULL portable blower motor switch warning assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205422818U true CN205422818U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521078440.5U Withdrawn - After Issue CN205422818U (en) | 2015-12-18 | 2015-12-18 | NULL portable blower motor switch warning assembly |
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| CN (1) | CN205422818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422178A (en) * | 2015-12-18 | 2016-03-23 | 淮南师范学院 | Flame-proof and intrinsically safe local fan motor switch warning assembly |
-
2015
- 2015-12-18 CN CN201521078440.5U patent/CN205422818U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422178A (en) * | 2015-12-18 | 2016-03-23 | 淮南师范学院 | Flame-proof and intrinsically safe local fan motor switch warning assembly |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20180403 |
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| AV01 | Patent right actively abandoned |