CN203794474U - Graded control system of power supply - Google Patents
Graded control system of power supply Download PDFInfo
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- CN203794474U CN203794474U CN201420091456.9U CN201420091456U CN203794474U CN 203794474 U CN203794474 U CN 203794474U CN 201420091456 U CN201420091456 U CN 201420091456U CN 203794474 U CN203794474 U CN 203794474U
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- 238000003860 storage Methods 0.000 claims abstract description 29
- 230000010354 integration Effects 0.000 claims description 24
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003197 gene knockdown Methods 0.000 description 1
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Abstract
The utility model relates to a graded control system of a power supply. The graded control system comprises a storage battery, a contactor and a plurality of fuses, wherein the fuses are divided into three stages of fuse networks; a first-stage fuse network is formed by first fuses corresponding to first loading objects needing to be directly connected with a positive electrode of the storage battery; a second-stage fuse network is formed by second fuses which are directly controlled by the contactor and correspond to loading object groups; a third-stage fuse network is formed by third fuses which correspond to all second load objects in all the loading object groups. The graded control system has the advantages that the fuses are grouped according to loads controlled by the contactor, and the graded control on the power supply is realized, so that the influence caused by interference of circuits with different load types can be avoided; a plurality of second fuses in the second-stage fuse network are respectively connected with the corresponding loading object group, so that the influence on the working of all the loads generated when a single fuse F0 is used for breakdown can be avoided.
Description
Technical field
The utility model relates to power supply control field, relates in particular to a kind of power supply multi-level control system.
Background technology
For crawler crane, it is used for automobile system power supply that its power-supply system adopts storage battery conventionally, in use by diesel motor, generate electricity or other modes are charged to storage battery, and supply vehicle using electricity system is used simultaneously.
As shown in Figure 1; power control loop principle schematic for existing crawler crane electric power system; wherein a part of load aI, aII ..., aY power supply need to be direct-connected with storage battery; the positive pole that for example power supply of the Engine ECU of gps system and part model need to directly be borrowed storage battery could not affect its function; also have the power supply of some devices not affected and power-off by crawler crane shutdown according to industry requirement, the beacon light of installing such as arm head etc.And another part load a1, a2 ..., aN power supply closed at key switch, make the coil of contactless switch K1 obtain electric, after the closing of contact of triggering contactless switch K1, connect, such as conventional electric system, a/c system, PLC control system etc., these two parts form the main power source system of crawler crane jointly.
At present, the fuse of the power-supply system of crawler crane and contactless switch disperse to be arranged in control box, as shown in Figure 2, fuse FI, the FII of capacity 5A～30A ..., the common quantity of FY has 4, suitable for reading in parallel by wire or bridgeware, the positive pole that is connected to the 24V storage battery of turntable, end opening is connected to each and uses electric device.Contactless switch K1 capacity is 100A～400A, there is winding wiring 1,2, the power supply that connects respectively key switch is controlled shelves and ground connection, controlling the break-make of contact 3,4, contact 3,4 connects respectively the positive pole of 24V storage battery and the fuse F0 of 200A, the other end of fuse F0 be connected with fuse F1, F2 ..., FN, general quantity is at 15～25, fuse F1, F2 ..., FN suitable for reading in parallel by wire or bridgeware, end opening connects each and uses electric device, when the closing of contact of contactless switch K1, each is just switched on electric device.Fuse F1, F2 ..., FN when wiring, pipe dress terminal need to have been press-fited on wire after insertion fuse tightly with screw crimping, fuse F0 adopts the wire of plate shape hole formula joint to be connected with contactless switch K1.
In the power-supply system of the crawler crane shown in Fig. 1,2, the load of controlling due to contactless switch K1 is all connected under fuse F0, between circuit, exist and disturb, the interference that for example high-power electric appliance (air-conditioning) produces system busbar voltage, cause main line voltage to occur fluctuation, this voltage fluctuation will directly have influence on the analog signals input of PLC.In addition, due to fuse F1, F2 ..., FN is the first connection mode that accesses again fuse F0 in parallel, when fuse F1, F2 ..., have any route in short circuit grounding in FN, while causing large electric current to puncture fuse F0, other loads under fuse F0 also cannot be worked.
As can see from Figure 2; fuse and relay Monodispersed are arranged in control box, and the connection of each electric elements realizes by manually adding attaching parts with wire, make, assembling process is loaded down with trivial details; wiring quality is difficult to guarantee; often there will be that line end is loosening, short circuit, the situation such as open circuit, and because line node is more, contact resistance stack; cause pressure drop excessive; and then cause complete machine consumption of current large, and circuit cal val raises, and can also there is the phenomenons such as engine ignition difficulty in serious.
Utility model content
The purpose of this utility model is to propose a kind of power supply multi-level control system, avoids the interference between each load circuit as far as possible.
For achieving the above object, the utility model provides a kind of power supply multi-level control system, comprise storage battery, contactless switch and a plurality of fuse, wherein, described a plurality of fuse is divided into three grades of fuse networks, need corresponding first fuse of the first anodal load object of direct-connected described storage battery to form one-level fuse network, directly actuated by described contactless switch, the second fuse corresponding to load Object group forms secondary fuse network, each the second load object in the corresponding load Object group of each second fuse in described secondary fuse network is distinguished the 3rd corresponding fuse and is formed three grades of fuse networks, the positive pole of described storage battery is connected with described one-level fuse network, the switch contact of contactless switch is connected between the positive pole and described secondary fuse network of described storage battery, described one-level fuse network settings are between described the first load object and the coil of described contactless switch and the positive pole of described storage battery, described three grades of fuse network settings are between described secondary fuse network and described the second load object, described secondary fuse network is also connected with electrical generator with starter.
Further, the coil of described one-level fuse network, secondary fuse network, contactless switch and switch package are an integration module.
Further, described integration module is provided with on the anodal power input for connecting described storage battery, described secondary fuse for connecting on the first fuse mouth of described the 3rd fuse network, described one-level fuse for connecting the second fuse mouth of the first load object and the coil control end of described contactless switch.
Further, described power input and the first fuse mouth are double-screw bolt form.
Further, described the second fuse mouth and coil control end are waterproof connector form.
Further, on described integration module, be also provided with the action button of break-make that machinery is controlled the switch contact of described contactless switch.
Further, described integration module adopts removable plastic housing encapsulation.
Further, the first fuse in described integration module and the second fuse are plug-in or build-up type.
Further, described integration module is placed in control box, or is placed on outside control box.
Further, the range of capacity of described the first fuse is 5～40A, and the range of capacity of described the second fuse is 30～200A.
Based on technique scheme, the load that the utility model is controlled according to contactless switch is divided into groups to fuse, and realized the step control of power supply, so just can avoid disturbing caused impact between the circuit of different loads type, by a plurality of the second fuses in secondary fuse network, connect respectively load Object group separately, in the time of can avoiding using single fuse F0 to puncture, affect all loaded work pieces.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the power control loop principle schematic of existing crawler crane electric power system.
Fig. 2 is that fuse and the contactless switch of the power-supply system of existing crawler crane disperses the schematic diagram of the situation of arranging.
Fig. 3 is the control loop principle schematic of an embodiment of the utility model power supply multi-level control system.
Fig. 4 is the integration module encapsulation schematic diagram of the utility model power supply multi-level control system embodiment.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 3, be the control loop principle schematic of an embodiment of the utility model power supply multi-level control system.In the present embodiment, power supply multi-level control system comprises storage battery, contactless switch K1 and a plurality of fuse, and the plurality of fuse is divided according to load object, is divided into three grades of fuse networks, so that the line-hit between reduction device, makes line clear standard.Wherein, need direct-connected storage battery the first anodal load object (load I, load II in figure ..., load Y) corresponding Y the first fuse FI, FII, FIII ..., FY forms one-level fuse network, and, X second fuse F0A corresponding to load Object group directly actuated by contactless switch K1, F0B, F0C ..., F0X forms secondary fuse network.
Each the second load object in the corresponding load Object group of each second fuse in secondary fuse network is distinguished the 3rd corresponding fuse and is formed three grades of fuse networks.The load Object group that the second fuse F0A is corresponding is N the second load object (i.e. load A1 in figure, A2, AN), corresponding the 3rd fuse FB1 respectively, FB2, FBN, the load Object group that the second fuse F0B is corresponding is N the second load object (i.e. load B1 in figure, B2, BN), corresponding the 3rd fuse FB1 respectively, FB2, FBN, the load Object group that the second fuse F0C is corresponding is N the second load object (i.e. load C 1 in figure, C2, CN), corresponding the 3rd fuse FC1 respectively, FC2, FCN, the load Object group that the second fuse F0X is corresponding is N the second load object (i.e. load X1 in figure, X2, XN), corresponding the 3rd fuse FX1 respectively, FX2, FXN.Wherein, the value of X, Y, N can be selected according to the required fuse quantity of actual use occasion, allows to get the positive integer that is not less than 1.
The positive pole of storage battery is connected with one-level fuse network, the switch contact of contactless switch K1 is connected between the positive pole and secondary fuse network of storage battery, one-level fuse network settings are between the first load object and the coil of contactless switch K1 and the positive pole of storage battery, three grades of fuse network settings are between secondary fuse network and the second load object, and secondary fuse network is also connected with electrical generator with starter.From above-mentioned explanation and Fig. 3, can see that the directly actuated load of contactless switch K1 is divided into a plurality of classification, and receive respectively the second fuse F0A separately, F0B, F0C ..., on F0X, so just can eliminate the interference between each load Object group, and avoid causing other load Object groups to work because a fuse wherein punctures.
For convenient, manufacture and dispose, ensure wiring quality, in another embodiment, can be by the one-level fuse network of above-mentioned division and secondary fuse network, and the coil of contactless switch K1 and switch package are an independently integration module.Can the line internal production between each device is good in integration module, only retain input and output interface.Wherein the input interface of integration module is for connecting the anodal power input IN of storage battery, mouth has three groups, is respectively on secondary fuse on the first fuse mouth OUT2 for connecting the 3rd fuse network, one-level fuse for connecting the second fuse mouth OUT1 of the first load object and the coil control end OUT3 of contactless switch K1.
Take crawler crane as example, fuse four tunnels that are directly connected with storage battery in the integration module that power supply multi-level control system used adopts can meet the demands, do not need the device that is directly connected with storage battery routinely electric system, a/c system, PLC control system be divided into three groups, three tunnels can meet the demands.As shown in Figure 4.The 24V power supply of storage battery enters from power input IN, finally from the first fuse mouth OUT2 and the second fuse mouth OUT1 output.The first fuse mouth OUT2 is the mouth of four little fuses, and the second fuse mouth OUT1 is the mouth of three large fuses, and coil control end OUT3 is the coil control end of contactless switch K1.Wherein, the range of capacity of the first fuse can be selected 5～40A, and the range of capacity of described the second fuse may be selected to be 30～200A.
In integration module, power input IN and the first fuse mouth OUT2 can make double-screw bolt form, and the second fuse mouth OUT1 and coil control end OUT3 can make waterproof connector form, to guarantee low resistance, high conductance and good corrosion stability.
For improving safety and operation sneakerization, can also in integration module, add machinery to control the action button of break-make of the switch contact of described contactless switch.Each element device in integration module all can be encapsulated in knock-down plastic housing, adopts the mode of removable plastic housing encapsulation can either protecting component, can change as required again.The first fuse in integration module and the second fuse, for can make plug-in or build-up type, need to be selected not allow the fuse of capacity according to system, facilitate later maintenance simultaneously.After making integration module, can be placed in control box, also can be placed on outside control box, as positions such as operator's compartment, turntables.
By the explanation to each embodiment of aforementioned power supply multi-level control system, be appreciated that the utility model can realize the step control of the power-supply system of engineering mechanical device (such as crawler crane etc.), the current supply circuit of engineering mechanical device is carried out to standardized distribution.And further part fuse, contactless switch are carried out integrated, make circuit module, obtain the standalone module that integration is high, degree of protection is high, volume is little, and can be positioned over diverse location according to different demands, convenient, safety, reliable, field wiring greatly reduces.Fuse can be selected different range of capacitys, replaceable, convenient later maintenance.Two kinds of modes of contactless switch are controlled, safe, and operation is convenient.This integration module can also be applicable to various engineering mechanical devices and vehicle.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (10)
1. a power supply multi-level control system, comprise storage battery, contactless switch and a plurality of fuse, it is characterized in that, described a plurality of fuse is divided into three grades of fuse networks, need corresponding first fuse of the first anodal load object of direct-connected described storage battery to form one-level fuse network, directly actuated by described contactless switch, the second fuse corresponding to load Object group forms secondary fuse network, each the second load object in the corresponding load Object group of each second fuse in described secondary fuse network is distinguished the 3rd corresponding fuse and is formed three grades of fuse networks, the positive pole of described storage battery is connected with described one-level fuse network, the switch contact of contactless switch is connected between the positive pole and described secondary fuse network of described storage battery, described one-level fuse network settings are between described the first load object and the coil of described contactless switch and the positive pole of described storage battery, described three grades of fuse network settings are between described secondary fuse network and described the second load object, described secondary fuse network is also connected with electrical generator with starter.
2. power supply multi-level control system according to claim 1, is characterized in that, coil and the switch package of described one-level fuse network, secondary fuse network, contactless switch are an integration module.
3. power supply multi-level control system according to claim 2, it is characterized in that, described integration module is provided with on the anodal power input for connecting described storage battery, described secondary fuse for connecting on the first fuse mouth of described the 3rd fuse network, described one-level fuse for connecting the second fuse mouth of the first load object and the coil control end of described contactless switch.
4. power supply multi-level control system according to claim 3, is characterized in that, described power input and the first fuse mouth are double-screw bolt form.
5. power supply multi-level control system according to claim 3, is characterized in that, described the second fuse mouth and coil control end are waterproof connector form.
6. power supply multi-level control system according to claim 2, is characterized in that, is also provided with the action button of break-make that machinery is controlled the switch contact of described contactless switch on described integration module.
7. power supply multi-level control system according to claim 2, is characterized in that, described integration module adopts removable plastic housing encapsulation.
8. power supply multi-level control system according to claim 2, is characterized in that, the first fuse in described integration module and the second fuse are plug-in or build-up type.
9. power supply multi-level control system according to claim 2, is characterized in that, described integration module is placed in control box, or is placed on outside control box.
10. power supply multi-level control system according to claim 1, is characterized in that, the range of capacity of described the first fuse is 5～40A, and the range of capacity of described the second fuse is 30～200A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091456.9U CN203794474U (en) | 2014-02-28 | 2014-02-28 | Graded control system of power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091456.9U CN203794474U (en) | 2014-02-28 | 2014-02-28 | Graded control system of power supply |
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| CN203794474U true CN203794474U (en) | 2014-08-27 |
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| CN201420091456.9U Expired - Lifetime CN203794474U (en) | 2014-02-28 | 2014-02-28 | Graded control system of power supply |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576714A (en) * | 2016-01-04 | 2016-05-11 | 江苏科技大学 | Programmable logic controller (PLC)-based ship power allocation control device and control method |
| CN110492453A (en) * | 2019-09-11 | 2019-11-22 | 阳光电源股份有限公司 | A kind of energy-storage system and its multistage short circuit protection system |
| CN111289867A (en) * | 2020-02-24 | 2020-06-16 | 上海御渡半导体科技有限公司 | Self-holding power supply device and method of semiconductor automatic test system |
-
2014
- 2014-02-28 CN CN201420091456.9U patent/CN203794474U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576714A (en) * | 2016-01-04 | 2016-05-11 | 江苏科技大学 | Programmable logic controller (PLC)-based ship power allocation control device and control method |
| CN110492453A (en) * | 2019-09-11 | 2019-11-22 | 阳光电源股份有限公司 | A kind of energy-storage system and its multistage short circuit protection system |
| US11342752B2 (en) | 2019-09-11 | 2022-05-24 | Sungrow Power Supply Co., Ltd. | Energy storage system and multi-stage short circuit protection system thereof |
| CN110492453B (en) * | 2019-09-11 | 2023-01-06 | 阳光电源股份有限公司 | Energy storage system and multistage short-circuit protection system thereof |
| CN111289867A (en) * | 2020-02-24 | 2020-06-16 | 上海御渡半导体科技有限公司 | Self-holding power supply device and method of semiconductor automatic test system |
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Granted publication date: 20140827 |