CN216121910U - Crane power supply system with redundancy function - Google Patents
Crane power supply system with redundancy function Download PDFInfo
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- CN216121910U CN216121910U CN202122303415.4U CN202122303415U CN216121910U CN 216121910 U CN216121910 U CN 216121910U CN 202122303415 U CN202122303415 U CN 202122303415U CN 216121910 U CN216121910 U CN 216121910U
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- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
A crane power supply system with a redundancy function comprises two power supply circuits which are arranged in parallel, wherein the first power supply circuit comprises a UPS (uninterrupted power supply) A, a contactor A and an indicator lamp A, the second power supply circuit comprises a UPS B, a contactor B and an indicator lamp B, the power input ends of the UPS A and the UPS B are correspondingly connected with the power supply, and the power output ends of the UPS A and the UPS B are correspondingly connected with a crane operation system; a normally closed contact of the contactor B, the contactor A, a normally open contact of the contactor A and an indicator lamp A are sequentially arranged between the UPS power supply A and the crane operation system; a normally closed contact of the contactor A, a contactor B, a normally open contact of the contactor B and an indicator lamp B are sequentially arranged between the UPS power supply B and the crane operation system; and the system can ensure that the crane obtains stable power supply, and can send out fault signals in time, so that maintenance personnel can quickly judge fault points.
Description
Technical Field
The utility model relates to the technical field of electrical control of cranes, in particular to a crane power supply system with a redundancy function.
Background
As is known, with the development of automation technology, more and more crane control systems are controlled by using a PLC, however, since a power failure or unstable power supply voltage is likely to occur during the operation of a crane, the PLC equipment is damaged, even program data being operated by the PLC is lost, and unnecessary loss is caused, so that most cranes currently use an UPS uninterruptible power supply to supply power to the PLC; however, the UPS in the market is easy to fail and damage due to uneven product quality, and at the moment, the number of fault points of a control system is increased, so that the power supply of the crane is influenced; in addition, after the UPS fails, field maintenance personnel are required to modify the circuit to recover power supply, and if the failure is not reported timely, the maintenance personnel cannot maintain the UPS at the first time, and corresponding economic loss is generated; therefore, in summary, there is a need in the market for a power supply system that can ensure stable power supply of a crane and can send out a fault alarm in time.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses a crane power supply system with a redundancy function.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a crane power supply system with a redundancy function comprises two power supply circuits which are arranged in parallel, wherein the first power supply circuit comprises a UPS (uninterrupted power supply) A, a contactor A and an indicator light A, the second power supply circuit comprises a UPS B, a contactor B and an indicator light B, the power input ends of the UPS A and the UPS B are correspondingly connected with a main power supply, and the power output ends of the UPS A and the UPS B are correspondingly connected with a crane operation system; a normally closed contact of the contactor B, the contactor A, a normally open contact of the contactor A and an indicator lamp A are sequentially arranged between the UPS power supply A and the crane operation system; a normally closed contact of the contactor A, a contactor B, a normally open contact of the contactor B and an indicator lamp B are sequentially arranged between the UPS power supply B and the crane operation system;
preferably, the first power supply circuit is provided with a fault lamp A correspondingly connected in parallel with the UPS power supply A, and the second power supply circuit is provided with a fault lamp B correspondingly connected in parallel with the UPS power supply B;
preferably, the first power supply circuit is provided with a circuit breaker A, and the circuit breaker A is positioned between the UPS power supply A and the main power supply; the second power supply circuit is provided with a breaker B, and the breaker B is positioned between the UPS power supply B and the main power supply;
preferably, the power supply system comprises a standby circuit connected in parallel with the two power supply circuits, and the standby circuit can be switched on when both the two power supply circuits have faults;
preferably, the standby circuit is formed by connecting the normally closed contact of the contactor a and the normally closed contact of the contactor B in series.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the crane power supply system with the redundancy function, the two power supply circuits are interlocked, so that when a UPS (uninterrupted Power supply) in one power supply circuit fails, the other power supply circuit can be automatically switched to work, and the power supply system can stably supply power to a crane operation system;
in addition, through the indicator lamp and the fault lamp, maintenance personnel can clearly know the fault position, so that the maintenance personnel can conveniently maintain the fault point; in addition, when the two power supply circuits are in failure, the standby circuit can directly supply power to the crane operation system by using the main power supply, so that the crane operation system can normally operate.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of a standby circuit.
In the figure: 1. a first power supply circuit; 101. a UPS power supply A; 102. a contactor A; 103. an indicator light A; 2. a second power supply circuit; 201. a UPS power supply B; 202. a contactor B; 203. an indicator light B; 3. a fault lamp A; 4. a fault lamp B; 5. a circuit breaker A; 6. a circuit breaker B; 7. a standby circuit.
Detailed Description
In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:
the crane power supply system with the redundancy function described in conjunction with fig. 1-2 comprises two power supply circuits arranged in parallel, the first power supply circuit 1 comprises a UPS power supply a101, a contactor a102 and an indicator light a103, and the second power supply circuit 2 comprises a UPS power supply B201, a contactor B202 and an indicator light B203; the power input ends of the UPS power supply A101 and the UPS power supply B201 are correspondingly connected with a main power supply, and the power output ends of the UPS power supply A101 and the UPS power supply B201 are correspondingly connected with a crane operation system, namely, the power supply of the crane operation system is controlled by two power supply circuits;
a normally closed contact of the contactor B202, a contactor A102, a normally open contact of the contactor A102 and an indicator lamp A103 are sequentially arranged between the UPS power supply A101 and the crane operation system; a normally closed contact of the contactor A102, a contactor B202, a normally open contact of the contactor B202 and an indicator lamp B203 are sequentially arranged between the UPS power supply B201 and the crane operation system, and the two power supply circuits can be interlocked through the contactor B202 and the normally closed contact of the contactor A102, namely when the UPS power supply in one power supply circuit fails, the other power supply circuit can be automatically switched to work, so that the power supply system can stably supply power to the crane operation system; the indicator lamp A103 and the indicator lamp B203 can prompt maintenance personnel which power supply circuit fails;
in addition, the first power supply circuit 1 is provided with a fault lamp A3 correspondingly connected with the UPS power supply A101 in parallel, the second power supply circuit 2 is provided with a fault lamp B4 correspondingly connected with the UPS power supply B201 in parallel, maintenance personnel can be prompted through the fault lamp A3 and the fault lamp B4, and a specific fault point in the fault power supply circuit is the UPS power supply or a contactor;
according to the requirement, the first power supply circuit 1 is provided with a circuit breaker A5, and a circuit breaker A5 is positioned between the UPS power supply A101 and a main power supply; the second power supply circuit 2 is provided with a breaker B6, the breaker B6 is positioned between the UPS B201 and the main power supply, and the corresponding power supply circuit can be powered off through the breaker A5 and the breaker B6, so that maintenance personnel can maintain the fault points in the faulted power supply circuit more safely, and the operation of the crane does not need to be interrupted during maintenance;
in addition, this power supply system contains the stand-by circuit 7 with two power supply circuit parallels, and stand-by circuit 7 can switch on when two power supply circuit all break down, as required, stand-by circuit 7 comprises contactor A102's normally closed contact and contactor B202's normally closed contact series connection, and when two power supply circuit all broke down, this stand-by circuit 7 then was switched on to can directly utilize the main power supply for the power supply of hoist operation system, then do not influence the normal work of hoist operation system.
When the crane power supply system with the redundancy function is implemented, firstly, the contactor A102 in the first power supply circuit 1 is electrified, at the moment, the normally open contact of the contactor A102 is closed, the normally closed contact is opened, namely, the first power supply circuit 1 is in a conducting state, the second power supply circuit 2 is in a disconnecting state, the indicator lamp A103 is in a lighting state, and the indicator lamp B203 is in an extinguishing state, so that maintenance personnel are prompted that the first power supply circuit 1 normally works, and the second power supply circuit 2 is in a non-working state;
when the UPS power supply A101 or the contactor A102 in the first power supply circuit 1 fails, the normally closed contact of the contactor A102 is closed, the normally open contact is opened, namely the first power supply circuit 1 is in a disconnected state, the second power supply circuit 2 is in a connected state, the indicator lamp A103 is in an off state, and the indicator lamp B203 is in an on state, so that maintenance personnel are prompted that the first power supply circuit 1 fails, and the second power supply circuit 2 is in a working state;
it should be noted that, when the first power supply circuit 1 is in the operating state, both the fault lamp A3 and the fault lamp B4 are in the on state, and when the UPS power supply a101 in the first power supply circuit 1 is in the fault, both the indicator lamp a103 and the fault lamp A3 are turned off, at this time, a maintenance person can determine that the UPS power supply a101 in the first power supply circuit 1 is in the fault, and when the contactor a102 in the first power supply circuit 1 is in the fault, the indicator lamp a103 is in the off state, and the fault lamp A3 is still in the on state, at this time, the maintenance person can determine that the contactor a102 in the first power supply circuit 1 is in the fault.
The utility model is not described in detail in the prior art, and it is apparent to a person skilled in the art that the utility model is not limited to details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (3)
1. A crane power supply system with a redundancy function is characterized in that: the system comprises two power supply circuits arranged in parallel and a standby circuit (7) connected with the two power supply circuits in parallel, wherein the first power supply circuit (1) comprises a UPS (uninterrupted power supply) A (101), a contactor A (102) and an indicator lamp A (103), the second power supply circuit (2) comprises a UPS (201), a contactor B (202) and an indicator lamp B (203), the power access ends of the UPS (101) and the UPS (201) are correspondingly connected with the power supply, and the power output ends of the UPS (101) and the UPS (201) are correspondingly connected with a crane operation system; a normally closed contact of the contactor B (202), a contactor A (102), a normally open contact of the contactor A (102) and an indicator lamp A (103) are sequentially arranged between the UPS power supply A (101) and the crane operation system; a normally closed contact of the contactor A (102), a contactor B (202), a normally open contact of the contactor B (202) and an indicator lamp B (203) are sequentially arranged between the UPS power supply B (201) and the crane operation system; the standby circuit (7) can be conducted when both the two power supply circuits have faults, and the standby circuit (7) is formed by connecting the normally closed contact of the contactor A (102) and the normally closed contact of the contactor B (202) in series.
2. The crane power supply system with redundant function as claimed in claim 1, wherein: the first power supply circuit (1) is provided with a fault lamp A (3) which corresponds to the UPS power supply A (101) in parallel, and the second power supply circuit (2) is provided with a fault lamp B (4) which corresponds to the UPS power supply B (201) in parallel.
3. The crane power supply system with redundant function as claimed in claim 1, wherein: the first power supply circuit (1) is provided with a breaker A (5), and the breaker A (5) is positioned between the UPS power supply A (101) and the power supply; the second power supply circuit (2) is provided with a circuit breaker B (6), and the circuit breaker B (6) is positioned between the UPS power supply B (201) and the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122303415.4U CN216121910U (en) | 2021-09-23 | 2021-09-23 | Crane power supply system with redundancy function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122303415.4U CN216121910U (en) | 2021-09-23 | 2021-09-23 | Crane power supply system with redundancy function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216121910U true CN216121910U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122303415.4U Active CN216121910U (en) | 2021-09-23 | 2021-09-23 | Crane power supply system with redundancy function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216121910U (en) |
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2021
- 2021-09-23 CN CN202122303415.4U patent/CN216121910U/en active Active
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