CN203594605U - Wheel control device for starting and stopping machine and pump - Google Patents
Wheel control device for starting and stopping machine and pump Download PDFInfo
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- CN203594605U CN203594605U CN201320750045.1U CN201320750045U CN203594605U CN 203594605 U CN203594605 U CN 203594605U CN 201320750045 U CN201320750045 U CN 201320750045U CN 203594605 U CN203594605 U CN 203594605U
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- time relay
- blower fan
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- 230000005611 electricity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000005273 aeration Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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Abstract
The utility model relates to the field of a control device for starting and stopping a machine and a pump and particularly discloses a wheel control device for starting and stopping the machine and the pump. The wheel control device comprises a control box, a plurality of indicator lights, a rotary switch, a first fan manually-driven start and stop button and a second fan start and stop button, wherein a fan wheel control circuit electrically connected with the indicator lights and the rotary switch is arranged in the control box; the fan wheel control circuit comprises an intermediate relay, a first time relay, a second time relay, a third time relay, a first alternating current relay, a fourth time relay, a fifth time relay and a second alternating current relay; the first alternating current relay is electrically connected with a first fan frequency converter; the second alternating current relay is electrically connected with a second fan frequency converter; the first fan frequency converter is electrically connected with a first fan motor; the second fan frequency converter is electrically connected with a second fan motor. According to the wheel control device, the manual control is not required; the time interval of operating and stopping the fan is adjustable; the operation is simple and convenient; moreover, the manual labor cost can be lowered.
Description
Technical field
The utility model relates to machine, pump on off control device field, relates in particular to a kind of roots blower start and stop wheel control device.
Background technique
At present, dispose of sewage factory great majority of domestic two stage biological adopt blower aeration systems, and blower is equipment the most key in this technique, the energy consumption of blower accounts for 60% left and right of the total energy consumption of Sewage Plant sometimes, therefore sewage treatment works to select the blower fan of which kind of form be a very important problem.In prior art, Aeration fan adopts the mechanical devices such as multistage centrifugal blower, Roots blower, piston type air compressor, screw-rod air compressor more.
Conventionally two Fans in sewage disposal system can stop after starting 1 operation a period of time, after certain interval of time, restarting another 1 Fans operation stops a period of time, on off control need arrange personal management so circularly, not only operation is controlled comparatively complicated, need to consume human cost, and often easily because temporal carelessness causes controlling error.
Model utility content
The purpose of this utility model is, proposes a kind of pump start and stop wheel control device, and it is controlled without special messenger, and fan operation, to stop interval time adjustable, simple to operation, and can save human cost.
For achieving the above object, the utility model provides a kind of pump start and stop wheel control device, it comprises: control box, be located at the several tutorial light on control box, have automatically, stop, the rotary switch of manual three selection terminals, and the manual start-stop button of the first blower fan and the second blower fan start-stop button, in described control box, be provided with and several tutorial light, rotary switch, the impeller of blower control circuit that the manual start-stop button of the first blower fan and the second blower fan start-stop button are electrically connected, in this impeller of blower control circuit, include the auxiliary reclay between selection terminal and a zero line that is connected in parallel in rotary switch, very first time relay, second time relay, the 3rd time relay, the first AC relay, the 4th time relay, the 5th time relay and the second AC relay, described the first AC relay and one first fan frequency converter are electrically connected, the second AC relay and one second fan frequency converter are electrically connected, this first fan frequency converter is electrically connected with one first blower motor, and the second fan frequency converter is electrically connected with one second blower motor.
Concrete, described in be located at several tutorial light on control box and comprise automatic run indicator, manually run indicator, the first fan operation tutorial light and the second fan operation tutorial light.
Wherein, the automatic selection terminal of described auxiliary reclay one end and rotary switch is electrically connected, and the manual selection terminal of the normally-closed contact of this auxiliary reclay and rotary switch is electrically connected.
In the utility model, the manual start-stop button of described the first blower fan, the second blower fan start-stop button and manual run indicator are connected in parallel in normally-closed contact one end of auxiliary reclay, and this manual run indicator the other end is connected with zero line.
Further, the manual start-stop button of the first blower fan comprises the manual stop button of the first blower fan, the first blower fan manual actuation of button that are connected in series, and described the second blower fan start-stop button comprises the manual stop button of the second blower fan, the second blower fan manual actuation of button that are connected in series; The manual stop button of this first blower fan and the manual stop button of the second blower fan are all connected in parallel in normally-closed contact one end of auxiliary reclay, this the first blower fan manual actuation of button one end is connected with the time delay break contact of the 3rd time relay, and the first blower fan manual actuation of button two ends are also connected with the two ends of one first AC relay normally opened contact; This second blower fan manual actuation of button one end is connected with the time delay break contact of the 5th time relay, and the second blower fan manual actuation of button two ends are also connected with the two ends of one second AC relay normally opened contact.
Concrete, the time delay break contact of described very first time relay is connected with the first fan operation tutorial light, second time relay one end is connected with the normally-closed contact of the second AC relay, and the timing closing contact of second time relay and the 3rd time relay are connected in series; The time delay break contact the other end of the 3rd time relay is also connected with the first AC relay.
Moreover, between the timing closing contact of described second time relay and the 3rd time relay, draw a wire and be connected in position between the first blower fan manual actuation of button and the time delay break contact of the 3rd time relay; Between the time delay break contact of described the 3rd time relay and the first AC relay, draw a wire and be connected in position between the time delay break contact of very first time relay and the first fan operation tutorial light.
In addition, the timing closing contact of described very first time relay, the normally-closed contact of the first AC relay and the 4th time relay are connected in series, and the timing closing contact of described the 4th time relay is also connected in series with the 5th time relay; Time delay break contact and second AC relay of the 5th time relay are connected in series.
In the utility model, described automatic run indicator is connected in parallel in auxiliary reclay two ends, and the second fan operation tutorial light is connected in parallel in the 5th time relay two ends.
Concrete, described the first fan frequency converter and the second fan frequency converter all can adopt ALLRED frequency variator, and this ALLRED frequency variator includes ground terminal, power input terminal, power stage terminal, common port and multi-function input terminal; Described power input incoming transport 380V voltage, the first blower motor and the second blower motor respectively the power stage terminal of the frequency variator corresponding with it are connected, first AC relay one end is connected with the common port of the first fan frequency converter, and the other end of the first AC relay is connected with a multi-function input terminal of the first fan frequency converter; Second AC relay one end is connected with the common port of the second fan frequency converter, and the other end of the second AC relay is connected with a multi-function input terminal of the second fan frequency converter.
Pump start and stop wheel control device of the present utility model, its fan starting interval time, working time can be adjusted as required on the time relay, only need after 1 simple startup, no longer need special messenger to control, can realize the automatic control of pump start and stop, not only simple to operation, save human cost, and can reduce the control error that human negligence causes.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the external structure schematic diagram of a kind of specific embodiment of the utility model pump start and stop wheel control device;
Fig. 2 is the circuit connection diagram of a kind of specific embodiment of the utility model pump start and stop wheel control device;
Fig. 3 is the wiring schematic diagram of the first fan frequency converter in the utility model;
Fig. 4 is the wiring schematic diagram of the second fan frequency converter in the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As Fig. 1, shown in 2, the utility model provides a kind of pump start and stop wheel control device, it comprises: control box 10, be located at the several tutorial light on control box 10, have automatically, stop, the rotary switch (ST) 20 of manual three selection terminals, and the manual start-stop button of the first blower fan and the second blower fan start-stop button, in described control box 10, be provided with and several tutorial light, rotary switch (ST) 20, the impeller of blower control circuit that the manual start-stop button of the first blower fan and the second blower fan start-stop button are electrically connected, in this impeller of blower control circuit, include the auxiliary reclay K1 between selection terminal and a zero line (N) that is connected in parallel in rotary switch (ST) 20, very first time relay K T1, the second time relay KT2, the 3rd time relay KT3, the first AC relay KM1, the 4th time relay KT4, the 5th time relay KT5 and the second AC relay KM2, described the first AC relay KM1 and one first fan frequency converter 30 are electrically connected, the second AC relay KM2 and one second fan frequency converter 40 are electrically connected, this first fan frequency converter 30 is electrically connected with one first blower motor M1, and the second fan frequency converter 40 is electrically connected with one second blower motor M2.The utility model utilizes time relay control principle, form roots blower start and stop wheel control device by 20 and 5 time relays of 1 rotary switch (ST), only need after 1 simple startup, no longer need special messenger to control, and fan operation, stop interval time and can on the time relay, adjust as required, not only simplify easy-to-operat, saved human cost, and can reduce the control error that human negligence causes.
Concrete, described in be located at several tutorial light on control box 10 and comprise automatic run indicator (D1) 11, manually run indicator (D2) 12, the first fan operation tutorial light (D3) 13 and the second fan operation tutorial light (D4) 14.
Wherein, the automatic selection terminal of described auxiliary reclay K1 one end and rotary switch (ST) 20 is electrically connected, and the manual selection terminal of the normally-closed contact K1a of this auxiliary reclay K1 and rotary switch (ST) 20 is electrically connected.The normally-closed contact K1a of this auxiliary reclay K1 connects first and second blower fan and manually opens/stop loop, and while automatically control, auxiliary reclay K1 obtains electric, and first and second blower fan manually opens/stops loop and disconnects; In the time of manual control, auxiliary reclay K1 dead electricity, first and second blower fan manually opens/stops loop and connects.
In the utility model, the manual start-stop button of described the first blower fan, the second blower fan start-stop button and manual run indicator (D2) 12 are connected in parallel in normally-closed contact K1a one end of auxiliary reclay K1, and these manual run indicator (D2) 12 the other ends are connected with zero line (N).In the utility model specific embodiment, the manual start-stop button of described the first blower fan comprises the manual stop button of the first blower fan (SB2) 15, the first blower fan manual actuation of button (SB1) 16 that are connected in series, and described the second blower fan start-stop button comprises the manual stop button of the second blower fan (SB4) 17, the second blower fan manual actuation of button (SB3) 18 that are connected in series; The manual stop button of this first blower fan (SB2) 15 and the manual stop button of the second blower fan (SB4) 17 are all connected in parallel in normally-closed contact K1a one end of auxiliary reclay K1, these the first blower fan manual actuation of button (SB1) 16 one end are connected with the time delay break contact KT3b of the 3rd time relay KT3, and the first blower fan manual actuation of button (SB1) 16 two ends are also connected with the two ends of one first AC relay KM1 normally opened contact KM1d; Second blower fan manual actuation of button (SB3) 18 one end are connected with the time delay break contact KT5b of the 5th time relay KT5, and the second blower fan manual actuation of button (SB3) 18 two ends are also connected with the two ends of one second AC relay normally opened contact KM2d.In prior art, the manual start-stop button of blower fan is arranged on scene, and the utility model is arranged on control box 10, more directly perceived like this, uses more convenient.
Further, the time delay break contact KT1b of described very first time relay K T1 is connected with the first fan operation tutorial light (D3) 13, second time relay KT2 one end is connected with the normally-closed contact KM2a of the second AC relay KM2, and the timing closing contact KT2c of the second time relay KT2 and the 3rd time relay KT3 are connected in series; The time delay break contact KT3b the other end of the 3rd time relay KT3 is also connected with the first AC relay KM1.Moreover, between the timing closing contact KT2c of described the second time relay KT2 and the 3rd time relay KT3, draw a wire and be connected in position between the first blower fan manual actuation of button (SB1) 16 and the time delay break contact KT3b of the 3rd time relay KT3; Between the time delay break contact KT3b of described the 3rd time relay KT3 and the first AC relay KM1, draw position between time delay break contact KT1b that a wire is connected in very first time relay K T1 and the first fan operation tutorial light (D3) 13.
In addition, the timing closing contact KT1c of described very first time relay K T1, the normally-closed contact KM1a of the first AC relay KM1 and the 4th time relay KT4 are connected in series, and the timing closing contact KT4c of described the 4th time relay KT4 is also connected in series with the 5th time relay KT5; The time delay break contact KT5b of the 5th time relay KT5 and the second AC relay KM2 are connected in series.In the utility model, described automatic run indicator (D1) 11 is connected in parallel in auxiliary reclay K1 two ends, and the second fan operation tutorial light (D4) 14 is connected in parallel in the 5th time relay KT5 two ends.
As shown in Figure 3,4, as a kind of selectivity embodiment of the present utility model, described the first fan frequency converter 30 and the second fan frequency converter 40 all can adopt ALLRED frequency variator, and this ALLRED frequency variator includes ground terminal (PE), power input terminal (R, S, T), power stage terminal (U, V, W), common port (CM) and multi-function input terminal (OP1, OP2, OP3, OP4, OP5, OP6, OP7, OP8).The first fan frequency converter 30 in the utility model and the second fan frequency converter 40 all adopt passive common source wiring (NPN mode), described power input (R, S, T) incoming transport 380V voltage, the first blower motor M1 and the second blower motor M2 respectively the power stage terminal of the frequency variator corresponding with it (U, V, W) are connected, first AC relay KM1 one end is connected with the common port (CM) of the first fan frequency converter 30, and the other end of the first AC relay KM1 is connected with a multi-function input terminal of the first fan frequency converter 30; Second AC relay one end KM2 is connected with the common port (CM) of the second fan frequency converter 40, and the other end of the second AC relay KM2 is connected with a multi-function input terminal of the second fan frequency converter 40.In the utility model specific embodiment, described the first AC relay KM1 is connected with common port (CM) and multi-function input terminal (OP6) by the two ends of its normally opened contact KM1d respectively, and described the second AC relay KM2 is connected with common port (CM) and multi-function input terminal (OP6) by the two ends of its normally opened contact KM2d respectively.
In the utility model, first described very first time relay K T1 is used for limiting each operation is automatically the first fan operation; The second time relay KT2 is for controlling the startup interval time of the first blower fan rotation operation; The 3rd time relay KT3 was used for controlling the first fan operation time; The 4th time relay KT4 is for controlling the startup interval time of the second blower fan rotation operation; The 5th time relay KT5 was used for controlling the second fan operation time.Described the first AC relay KM1 for control the first fan frequency converter 30 startup, stop; The second AC relay KM2 for control the second fan frequency converter 40 startup, stop.
As a kind of specific embodiment of the present utility model; in the time of concrete use; rotary switch (ST) 20 one end and a live wire (L) are electrically connected; when rotary switch (ST) 20 is during in automatic control: (1) run indicator (D1) 11 is bright automatically; simultaneously; auxiliary reclay K1 energized action, first and second blower fan manually opens/stops loop and disconnects.(2) first AC relay KM1 and the second time relay KT2 obtain electric, start timing; Make the first AC relay KM1 energized action by the time delay break contact KT1b of very first time relay K T1, closed first fan frequency converter 30, the first fan operations that start of its normally opened contact KM1d simultaneously; By the time delay break contact KT3b of the 3rd time relay KT3, make the 3rd time relay KT3, thereby start timing; In the first AC relay KM1 action simultaneously, the first fan operation tutorial light D3 is bright.(3) simultaneously, because the second blower fan automatic control loop is connected by the timing closing contact KT1c of very first time relay K T1, now in off state, thereby first start the first blower fan while guaranteeing automatic control, and only have 1 Fans to start.(4) the time 1h setting as the second time relay KT2 arrives, its timing closing contact KT2c moves connection, thereby while guaranteeing that very first time relay K T1 set time disconnects to its normally-closed contact KT1a (under auto state, this contact after this will be always in disconnecting), the first blower fan continues operation; Now, its loop is made up of the timing closing contact KT2c of normally-closed contact KM2a, the second time relay KT2 of the second AC relay KM2, the time delay break contact KT3b of the 3rd time relay KT3; It is uninterrupted that the first fan operation time the 3rd time relay KT3 continues timing simultaneously.And very first time relay K T1 action, its timing closing contact KT1c connect time (under auto state, to always in closure this contact), because of very first time relay K T1 action, when its timing closing contact KT1c connects, (under auto state, this contact will be always in closing KM1, the second AC relay KM2 interlocking, and the first blower fan is in running state, the second blower fan not yet electric, in halted state.(5), when the 3rd time relay KT3 set time 3h finishes, its time delay break contact KT3b disconnects, the first AC relay KM1 dead electricity action, and the first fan frequency converter 30 stops, and the first fan operation stops, and the first fan operation tutorial light (D3) 13 goes out.(6) first blower fans stop, the normally-closed contact KM1a of the first AC relay KM1 resets and connects, the second fan starting relay interval time i.e. the 4th time relay KT4 obtains electric timing, set time 1h arrives, the 4th time relay KT4 action, its timing closing contact KT4c closure, makes the 5th time relay KT5 obtain electric timing; The second AC relay KM2 is by the time delay break contact KT5b energized action of the 5th time relay KT5 simultaneously, and the second fan frequency converter 40 starts, and the second blower fan brings into operation; The second fan operation tutorial light (D4) 14 is bright simultaneously.(7) second fan operations, the normally-closed contact KM2a of the second AC relay KM2 is in off state, and the time delay break contact KT1b of very first time relay K T1 is also because automatic control state remains open, the first blower fan automatic control loop dead electricity.(8) until the 5th time relay KT5 set time 3h finishes, its time delay break contact KT5b moves, the second AC relay KM2 dead electricity, and the second fan frequency converter 40 stops, and the second blower fan stops; The second fan operation tutorial light (D4) 14 goes out.(9) second AC relay KM2 dead electricity, its normally-closed contact KM2a resets closed, the first fan starting relay interval time, the second time relay KT2 obtains electric timing, treats that set time 1h arrives, and the 3rd time relay KT3 must establish beginning timing by cable; Very first time relay K M1 is by the timing closing contact KT3c energized action of the 3rd time relay KT3 simultaneously, and the first fan frequency converter 30 starts, and the first blower fan brings into operation; The first fan operation tutorial light (D3) 13 is bright simultaneously.(10) go round and begin again since then, thereby realize the wheel current control that two Fans are started.In the utility model specific embodiment, the time that described very first time relay K T1, its timing closing contact KT1c and time delay break contact KT1b set is all greater than the time of the timing closing contact KT2 setting of the second time relay KT2.
When rotary switch (ST) 20 is during in manual control: (1) repeater relay K1 dead electricity, its normally-closed contact K1a connects first and second blower fan and manually opens/stop loop, and manually run indicator (D2) 12 is bright.(2) by the first blower fan manual actuation of button (SB1) 16, the time delay break contact KT3b that is the 3rd time relay KT3 by the fan operation time relay breaks, the first AC relay KM1 obtains electric, the first fan frequency converter 30 starts, the first blower fan brings into operation, and the first fan operation tutorial light (D3) 13 is bright simultaneously.(3) the 3rd time relay KT3 also must establish beginning timing by cable simultaneously, and set time 3h finishes, its time delay break contact KT3b action, make the first AC relay KM1 dead electricity action, the first fan frequency converter 30 stops, and the first fan operation stops, and the first fan operation tutorial light (D3) 13 goes out.(4) principle that manually boots the second blower fan is identical with the above-mentioned principle that manually boots the first blower fan.
When rotary switch (ST) 20 is during in stop position: automatically, manual all dead electricity of control loop, simultaneously automatically run indicator (D1) 11 and manually run indicator (D2) 12 all in extinguishing state.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a pump start and stop wheel control device, comprise control box, be located at the several tutorial light on control box, have automatically, stop, the rotary switch of manual three selection terminals, and the manual start-stop button of the first blower fan and the second blower fan start-stop button, it is characterized in that, in described control box, be provided with and several tutorial light, rotary switch, the impeller of blower control circuit that the manual start-stop button of the first blower fan and the second blower fan start-stop button are electrically connected, in this impeller of blower control circuit, include the auxiliary reclay between selection terminal and a zero line that is connected in parallel in rotary switch, very first time relay, second time relay, the 3rd time relay, the first AC relay, the 4th time relay, the 5th time relay and the second AC relay, described the first AC relay and one first fan frequency converter are electrically connected, the second AC relay and one second fan frequency converter are electrically connected, this first fan frequency converter is electrically connected with one first blower motor, and the second fan frequency converter is electrically connected with one second blower motor.
2. pump start and stop as claimed in claim 1 wheel control device, is characterized in that, described in be located at several tutorial light on control box and comprise automatic run indicator, manually run indicator, the first fan operation tutorial light and the second fan operation tutorial light.
3. pump start and stop wheel control device as claimed in claim 2, is characterized in that, the automatic selection terminal of described auxiliary reclay one end and rotary switch is electrically connected, and the manual selection terminal of the normally-closed contact of this auxiliary reclay and rotary switch is electrically connected.
4. pump start and stop wheel control device as claimed in claim 3, it is characterized in that, the manual start-stop button of described the first blower fan, the second blower fan start-stop button and manual run indicator are connected in parallel in normally-closed contact one end of auxiliary reclay, and this manual run indicator the other end is connected with zero line.
5. pump start and stop wheel control device as claimed in claim 4, it is characterized in that, the manual start-stop button of described the first blower fan comprises the manual stop button of the first blower fan, the first blower fan manual actuation of button that are connected in series, and described the second blower fan start-stop button comprises the manual stop button of the second blower fan, the second blower fan manual actuation of button that are connected in series; The manual stop button of this first blower fan and the manual stop button of the second blower fan are all connected in parallel in normally-closed contact one end of auxiliary reclay, this the first blower fan manual actuation of button one end is connected with the time delay break contact of the 3rd time relay, and the first blower fan manual actuation of button two ends are also connected with the two ends of one first AC relay normally opened contact; This second blower fan manual actuation of button one end is connected with the time delay break contact of the 5th time relay, and the second blower fan manual actuation of button two ends are also connected with the two ends of one second AC relay normally opened contact.
6. pump start and stop wheel control device as claimed in claim 5, it is characterized in that, the time delay break contact of described very first time relay is connected with the first fan operation tutorial light, second time relay one end is connected with the normally-closed contact of the second AC relay, and the timing closing contact of second time relay and the 3rd time relay are connected in series; The time delay break contact the other end of the 3rd time relay is also connected with the first AC relay.
7. pump start and stop wheel control device as claimed in claim 6, it is characterized in that, between the timing closing contact of described second time relay and the 3rd time relay, draw a wire and be connected in position between the first blower fan manual actuation of button and the time delay break contact of the 3rd time relay; Between the time delay break contact of described the 3rd time relay and the first AC relay, draw a wire and be connected in position between the time delay break contact of very first time relay and the first fan operation tutorial light.
8. pump start and stop wheel control device as claimed in claim 7, it is characterized in that, the timing closing contact of described very first time relay, the normally-closed contact of the first AC relay and the 4th time relay are connected in series, and the timing closing contact of described the 4th time relay is also connected in series with the 5th time relay; Time delay break contact and second AC relay of the 5th time relay are connected in series.
9. pump start and stop wheel control device as claimed in claim 8, is characterized in that, described automatic run indicator is connected in parallel in auxiliary reclay two ends, and the second fan operation tutorial light is connected in parallel in the 5th time relay two ends.
10. the wheel of the pump start and stop as described in claim 1-9 any one control device, it is characterized in that, described the first fan frequency converter and the second fan frequency converter all adopt ALLRED frequency variator, and this ALLRED frequency variator includes ground terminal, power input terminal, power stage terminal, common port and multi-function input terminal; Described power input incoming transport 380V voltage, the first blower motor and the second blower motor respectively the power stage terminal of the frequency variator corresponding with it are connected, first AC relay one end is connected with the common port of the first fan frequency converter, and the other end of the first AC relay is connected with a multi-function input terminal of the first fan frequency converter; Second AC relay one end is connected with the common port of the second fan frequency converter, and the other end of the second AC relay is connected with a multi-function input terminal of the second fan frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750045.1U CN203594605U (en) | 2013-11-25 | 2013-11-25 | Wheel control device for starting and stopping machine and pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320750045.1U CN203594605U (en) | 2013-11-25 | 2013-11-25 | Wheel control device for starting and stopping machine and pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594605U true CN203594605U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320750045.1U Expired - Lifetime CN203594605U (en) | 2013-11-25 | 2013-11-25 | Wheel control device for starting and stopping machine and pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912803A (en) * | 2015-04-30 | 2015-09-16 | 中国北车集团大连机车车辆有限公司 | Control device for internal combustion locomotive air-compressor set |
| CN107179722A (en) * | 2017-07-06 | 2017-09-19 | 江苏新扬机电设备有限公司 | A kind of third gear actuator control module for air conditioner |
-
2013
- 2013-11-25 CN CN201320750045.1U patent/CN203594605U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912803A (en) * | 2015-04-30 | 2015-09-16 | 中国北车集团大连机车车辆有限公司 | Control device for internal combustion locomotive air-compressor set |
| CN107179722A (en) * | 2017-07-06 | 2017-09-19 | 江苏新扬机电设备有限公司 | A kind of third gear actuator control module for air conditioner |
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Granted publication date: 20140514 |