CN113328366A - Electrical cabinet heat dissipation system, control method and device and storage medium - Google Patents
Electrical cabinet heat dissipation system, control method and device and storage medium Download PDFInfo
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- CN113328366A CN113328366A CN202110687354.8A CN202110687354A CN113328366A CN 113328366 A CN113328366 A CN 113328366A CN 202110687354 A CN202110687354 A CN 202110687354A CN 113328366 A CN113328366 A CN 113328366A
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004590 computer program Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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Abstract
The embodiment of the application provides an electrical cabinet heat dissipation system, a control method, a device and a storage medium, wherein the electrical cabinet heat dissipation system comprises a control circuit and a fan; the control circuit is electrically connected with the fan and used for controlling the fan to operate so as to radiate heat of the electrical cabinet; the control circuit comprises a feedback loop, and the feedback loop is used for sending the running state of the fan to the display screen through a network bus. The running state of the fan in the electric cabinet is monitored in real time by arranging the feedback loop in the control circuit, and the running state of the fan is sent to the display screen, so that a worker can acquire the running state of the fan in real time, and once the electric cabinet breaks down, measures can be taken quickly, the potential safety hazard of a train is reduced, and the safe running of the train is guaranteed.
Description
Technical Field
The application relates to the electrical equipment technology, in particular to an electrical cabinet heat dissipation system, a control method, a device and a storage medium.
Background
With the development of rail transit, the requirements on the safety and stability of vehicles are higher and higher. The most direct relationship between the operating life of the electrical components and the operating temperature is that poor heat dissipation of the components is one of the causes of failure of the electronic equipment. The electrical cabinet arranged on the train is used as an integrated device for controlling an electrical system, and comprises systems such as auxiliary power supply, braking, network and the like, so that the heat dissipation performance of the electrical cabinet is good or bad, and the safety and stability of the whole train are related. Therefore, the temperature of the components in the electrical cabinet needs to be controlled below the effective working temperature to ensure reliable operation of the electronic equipment.
In order to meet the requirements of electrical cabinets on dust prevention and fire prevention, at present, electrical cabinets on rail vehicles usually adopt a sealed structure, a fan is arranged on the top of the cabinet, and heat generated by working of devices in the cabinet is taken away through operation of the fan.
However, at present, the performance of the fan is checked in a mode of regular maintenance, the running state of the fan cannot be obtained in time, if the fan is in a running process of a train, the fan is in a condition that the rotating speed is lower than the normal rotating speed, the fan is in clamping stagnation or stops, the heat dissipation effect of an electrical cabinet can be influenced, the running safety of the train is further influenced, and higher potential safety hazards exist.
Disclosure of Invention
The embodiment of the application provides an electrical cabinet heat dissipation system, a control method, a control device and a storage medium, and aims to solve the problem that the running state of a fan cannot be acquired in time at present and potential safety hazards exist.
According to a first aspect of an embodiment of the present application, an electrical cabinet heat dissipation system is provided, which includes a control circuit and a fan;
the control circuit is electrically connected with the fan and used for controlling the fan to operate so as to radiate heat of the electrical cabinet;
the control circuit comprises a feedback loop, and the feedback loop is used for sending the running state of the fan to the display screen through a network bus.
According to a second aspect of the embodiments of the present application, there is provided a method for controlling an electrical cabinet heat dissipation system, which is applied to the electrical cabinet heat dissipation system, and the method includes:
the control circuit controls the fan to operate;
acquiring the running state of the fan through the feedback loop;
and sending the running state of the fan to a display screen for displaying.
According to a third aspect of the embodiments of the present application, there is provided a control device for an electrical cabinet heat dissipation system, which is applied to the electrical cabinet heat dissipation system, and the device includes:
the operation module is used for controlling the fan to operate through the control circuit;
the state feedback module is used for acquiring the running state of the fan through the feedback loop;
and the display module is used for sending the running state of the fan to a display screen for displaying.
According to a fourth aspect of the embodiments of the present application, a storage medium is provided, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the method for controlling a heat dissipation system of an electrical cabinet is performed.
The embodiment of the application provides an electrical cabinet heat dissipation system, a control method, a device and a storage medium, wherein the electrical cabinet heat dissipation system comprises a control circuit and a fan; the control circuit is electrically connected with the fan and used for controlling the fan to operate so as to radiate heat of the electrical cabinet; the control circuit comprises a feedback loop, and the feedback loop is used for sending the running state of the fan to the display screen through a network bus. The running state of the fan in the electric cabinet is monitored in real time by arranging the feedback loop in the control circuit, and the running state of the fan is sent to the display screen, so that a worker can acquire the running state of the fan in real time, and once the electric cabinet breaks down, measures can be taken quickly, the potential safety hazard of a train is reduced, and the safe running of the train is guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an electrical cabinet provided in the prior art;
fig. 2 is a schematic diagram of a heat dissipation control circuit in an electrical cabinet with a sealing structure provided in the prior art;
fig. 3 is a schematic view of an electrical cabinet heat dissipation system provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a feedback loop provided in an embodiment of the present application;
FIG. 5 is a schematic diagram of a control circuit provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of the fire alarm control portion of the control circuit provided in an embodiment of the present application;
fig. 7 is a flowchart of a method for controlling a heat dissipation system of an electrical cabinet according to an embodiment of the present disclosure;
fig. 8 is a functional block diagram of a control device of an electrical cabinet heat dissipation system according to an embodiment of the present application.
Detailed Description
In the process of implementing the application, the inventor finds that, in order to meet the requirements of electrical cabinets on dust prevention and fire prevention, at present, electrical cabinets on rail vehicles generally adopt a sealed structure, a fan is arranged on the top of the cabinet, heat generated by working of devices in the cabinet is taken away through operation of the fan, and specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of the electrical cabinet provided by the prior art.
Referring to fig. 1 and fig. 2, fig. 2 is a schematic diagram of a heat dissipation control circuit in an electrical cabinet with a sealing structure according to the prior art. In fig. 2, after the fire alarm control circuit breaker (49-F01 in fig. 2) is closed, in the absence of a fire, the coil of the alarm relay (49-K11) is electrified and closed, the normally open contact is closed, the power supply of the fan is switched on, the fan works, heat generated by electric elements in the cabinet is taken away, and the temperature in the cabinet reaches a normal value.
However, in the above heat dissipation schemes, the performance of the fan is checked in a periodic maintenance manner, and the running state of the fan cannot be obtained in time, if the fan is in a condition that the rotating speed is lower than the normal rotating speed, the fan is stuck or stops rotating in the running process of the train, the heat dissipation effect of the electrical cabinet is affected, the running safety of the train is further affected, and higher potential safety hazards exist; in addition, in the running process of the train, the alarm relay (49-K11) is always in a working state, the probability of relay failure is greatly increased, if the alarm relay fails, the fan cannot be electrified, and the heat dissipation effect of the electrical cabinet can be influenced.
In order to solve the above problems, an embodiment of the application provides an electrical cabinet heat dissipation system, a control method, a device and a storage medium, wherein the electrical cabinet heat dissipation system comprises a control circuit and a fan; the control circuit is electrically connected with the fan and used for controlling the fan to operate so as to radiate heat of the electrical cabinet; the control circuit comprises a feedback loop, and the feedback loop is used for sending the running state of the fan to the display screen through a network bus. The running state of the fan in the electric cabinet is monitored in real time by arranging the feedback loop in the control circuit, and the running state of the fan is sent to the display screen, so that a worker can acquire the running state of the fan in real time, and once the electric cabinet breaks down, measures can be taken quickly, the potential safety hazard of a train is reduced, and the safe running of the train is guaranteed.
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 3, fig. 3 is a schematic view of an electrical cabinet heat dissipation system according to an embodiment of the present disclosure. The electrical cabinet heat dissipation system 10 comprises a control circuit 11 and a fan 12; the control circuit 11 is electrically connected with the fan 12 and is used for controlling the fan 12 to operate so as to dissipate heat of the electrical cabinet. The control circuit 11 includes a feedback loop 111, and the feedback loop 111 is configured to send an operation state of the fan 12 to the display 14 through the network bus 13.
This application embodiment carries out real time monitoring through set up feedback loop 111 in control circuit 11 to the running state of fan 12 in the regulator cubicle to send the running state of fan 12 to display screen 14, so that the staff can acquire the running state of fan in real time, in case break down, just can take measures fast, has reduced the potential safety hazard of train, the safe operation of guarantee train.
Optionally, referring to fig. 4, fig. 4 is a schematic diagram of a feedback loop provided in an embodiment of the present application. In this embodiment, the control circuit 11 further includes a state feedback relay (i.e., 64-T11 in fig. 4), the state feedback relay is electrically connected to the feedback loop 111, and the feedback loop 111 is configured to output a rated voltage or no voltage of the state feedback relay according to an operation state of the wind turbine 12, so as to control a normally open contact of the state feedback relay to be closed or opened;
the control circuit 11 further includes a network I/O module (i.e., 24-T07 in fig. 4), which is electrically connected to the status feedback relay, and is configured to obtain a level signal according to a closed or opened state of a normally open contact of the status feedback relay, where the level signal includes a high level signal and a low level signal, the high level signal is used to indicate that the fan 12 is working normally, and the low level signal is used to indicate that the fan 12 is out of order.
Optionally, in this embodiment, the feedback loop includes a feedback end, and when the rotation speed of the fan is not within the rated range, the feedback loop is configured to control the feedback end not to output a voltage, so that a normally open contact of the state feedback relay is opened; and when the normally open contact of the state feedback relay is disconnected, the network I/O module obtains low level.
When the rotating speed of the fan is within a rated range, the feedback loop is used for outputting rated voltage of the state feedback relay through the feedback end to close a normally open contact of the state feedback relay; and when the normally open contact of the state feedback relay is closed, the network I/O module obtains high level.
In the above embodiment, when the fan 12 has a fault (i.e., the rotation speed is not within the rated range), the feedback end of the feedback loop does not output voltage, the state feedback relay is not powered, the normally open contact is opened, i.e., the state feedback relay is opened, and the network I/O module obtains a low level signal. Once the network I/O module obtains a low level, it may determine that fan 12 is malfunctioning.
When the fan 12 is in normal operation (i.e., the rotation speed is within the rated range), the feedback end of the feedback loop outputs the rated voltage (e.g., DC24V) of the state feedback relay, the state feedback relay is powered on and closed, and the network I/O module obtains a high-level signal. Once the network I/O module obtains the high level, it may determine that the operating state of the fan 12 is a normal value.
Optionally, referring to fig. 5, fig. 5 is a schematic diagram of a control circuit provided in the embodiment of the present application. In the present embodiment, the control circuit 11 includes a power module (i.e., 64-T01 in FIG. 5), a fan powered circuit breaker (i.e., 64-F03 in FIG. 5), a first alarm relay (i.e., 49-K11 in FIG. 5), a second alarm relay (i.e., 49-K13 in FIG. 5), and a fan operated contactor (i.e., 64-Q03 in FIG. 5). The direct-current power supply voltage of the vehicle is DC74V, and the rated voltage of the fan is DC 24V.
The power supply module is electrically connected with the fan power supply circuit breaker and supplies power to the fan when the fan power supply circuit breaker is closed; the fan power supply circuit breaker is electrically connected with the first alarm relay and the second alarm relay, and the normally closed contacts of the first alarm relay and the second alarm relay are connected in series; first warning relay with second warning relay's normally closed contact establish ties after with fan operation contactor electricity is connected, just fan operation contactor with the fan electricity is connected when fan operation contactor is closed, the fan is in operating condition.
In this embodiment, in order to ensure that the fan can work safely without fire, the following conditions must be provided: the power supply module (64-T01) can work normally, the fan power supply circuit breaker (64-F03) is closed, the coils of the first alarm relay (49-K11) and the second alarm relay (49-K13) are not electrified, the normally closed contact is not operated, and the coil of the fan control contactor (64-Q03) is electrified.
In the prior art, only one alarm relay is arranged in the control circuit 11, when a fire occurs, a coil of the alarm relay is closed, a normally closed contact of the fan operation contactor is controlled to be disconnected, and the electric cabinet fan stops working. However, if the alarm relay is out of order, and the normally closed contact of the alarm relay is not disconnected under the condition of fire alarm, the fan in the cabinet runs normally, so that fire spread can be caused, and the safety of passengers and the driving safety are affected.
In order to solve the problem and reduce the serious influence caused by the normal operation of the fan in the cabinet when a fire alarm occurs, the alarm relay is arranged in a redundant manner in the embodiment of the application. Referring to fig. 6, fig. 6 is a schematic diagram of a fire alarm control portion of a control circuit according to an embodiment of the present disclosure. In FIG. 6, a first alarm relay (49-K11) and a second alarm relay (49-K13) are used in parallel.
Specifically, referring to fig. 5 and 6, the normally closed contacts of the first alarm relay (49-K11) and the second alarm relay (49-K13) are connected in series and then connected in series with the fan operating contactor (64-Q03). In case of fire, as long as any one of the two alarm relays can be normally closed, and the normally closed contact is disconnected, the fan 12 in the electrical cabinet can stop working, so that the propagation range of smoke, fire and toxic gas is reduced, and the stability of the train operation safety is improved.
When no fire occurs, the coils of the first alarm relay and the second alarm relay are not electrified, and the normally closed contacts of the first alarm relay and the second alarm relay are closed. In addition, because the fire belongs to a small-probability event, the probability of the first alarm relay and the second alarm relay being electrified is very low, the service lives of the first alarm relay and the second alarm relay can be prolonged, and the failure rate of a control circuit of the heat dissipation system of the electric cabinet is reduced.
Optionally, in this embodiment, the electrical cabinet heat dissipation system 10 further includes a vehicle control unit and a switch; the network I/O module is specifically used for sending a level signal to the switch through the vehicle control unit; the switch is used for displaying the running state of the fan 12 in the display screen 14 according to the level signal sent by the network I/O module.
For example, in this embodiment, when the fan 12 can normally operate (i.e., when the rotational speed of the fan is within the rated range), the feedback end of the feedback loop 111 outputs the rated voltage of the state feedback relay (e.g., DC24V), the coil of the state feedback relay (64-K02) is energized and attracted, the normally open contact of the state feedback relay is closed, i.e., the state feedback relay is closed, at this time, the network I/O module (24-T07) inputs the high level of DC74V, the network I/O module converts the received signal into a program and transmits the program to a Vehicle Control Unit (VCU), and the program is processed by the switch and finally displayed on the display screen. When the fan 12 is working normally, the display screen can display "fan normal".
When the fan 12 has a fault (such as clamping stagnation and stalling, namely the rotating speed is not within the rated range), the feedback loop 111 outputs a low level (namely no voltage output) of DC0V, the coil of the state feedback relay (64-K02) is not electrified, the normally open contact of the state feedback relay is opened, and the network I/O module (24-T07) inputs a low level of DC 0V. The network I/O module converts the received signals into programs, transmits the programs to a Vehicle Control Unit (VCU), processes the programs by the switch, and finally displays the programs on a display screen.
Alternatively, in this embodiment, when a fan 12 fails (stuck, stalled), information such as the location number of the failed fan, the impact on the train, and how the driver should operate may be displayed in the display screen. For example, the location number of the failing fan: +144.11 (i.e. the electrical cabinet location number that includes the fan); and (3) fault information: a fan failure; influence on the train: under the current load, the train can continuously run for X hours; if the transformer load in the electrical cabinet is cut off, the train can continuously run for Y hours; and (4) proposing: and stopping the train within Y hours to repair the fault.
When a power module in the control module is damaged or other conditions occur to cause that the DC24V cannot output voltage, the fan cannot be powered on and cannot work, namely, the feedback end of the feedback loop 111 cannot output voltage, at the moment, the coil of the state feedback relay (64-K02) is not powered on, the normally open contact of the state feedback relay is disconnected, so that the network I/O module (24-T07) inputs the low level of the DC0V, and the running state that the fan cannot work normally can be fed back.
It should be noted that, in this embodiment, the direct current supply voltage of the entire vehicle is DC74V, the supply voltage of the fan is DC24V, the feedback voltage of the normal operation output of the fan is DC24V, and the rated voltage of the fan state feedback relay is also 24V, and these values may be adjusted according to the actual project requirements and the actual fan model in the specific implementation process, which is not specifically limited herein.
To sum up, this application embodiment can be according to the operating condition of fan, through the corresponding voltage of feedback end output of feedback loop. When the rotating speed of the fan is within the rated value range, the output voltage is the rated voltage of the state feedback relay and is used for activating the state feedback relay, the network I/O module can receive a low level signal or a high level signal according to the disconnection or the closing state of the state feedback relay, and the state of the fan is displayed on a display screen through network hardware and software, so that the real-time monitoring of the heat dissipation system of the electric cabinet can be realized, a worker can receive fault information and rationalization suggestions at the first time, and the running safety of a train is improved.
In addition, according to the embodiment of the application, through the redundant design of the alarm relay and the control logic that the alarm relay does not work under the condition that no fire exists, the stability of the control circuit of the heat dissipation system of the electrical cabinet is improved, the failure rate is reduced, and meanwhile the condition that a fire disaster is spread due to the fact that the fan continues to operate when the fire disaster occurs due to the failure of the alarm relay can be avoided.
Referring to fig. 7, fig. 7 is a flowchart of a method for controlling a heat dissipation system of an electrical cabinet according to an embodiment of the present disclosure. In this embodiment, the method for controlling the heat dissipation system of the electrical cabinet is applied to the heat dissipation system of the electrical cabinet, and the method includes:
and step S11, controlling the fan to operate through the control circuit so as to radiate the electrical cabinet.
And step S12, acquiring the running state of the fan through a feedback loop.
And step S13, sending the running state of the fan to a display screen for displaying.
Optionally, in this embodiment, the feedback loop includes a state feedback relay, and the obtaining the operation state of the fan through the feedback loop includes:
outputting rated voltage or non-output voltage of the state feedback relay according to the working state of the fan so as to control the normally open contact of the state feedback relay to be closed or opened;
and inputting a corresponding level signal to a network I/O module according to the state of a normally open contact of the state feedback relay, wherein the level signal comprises a high level and a low level, the high level is used for indicating that the fan works normally, and the low level is used for indicating that the fan breaks down.
It should be noted that, the specific implementation manner of the control method for the heat dissipation system of the electrical cabinet provided in this embodiment has been described in detail in the foregoing, and is not described herein again.
Referring to fig. 8, fig. 8 is a functional block diagram of a control apparatus 110 of an electrical cabinet heat dissipation system according to an embodiment of the present disclosure. In this embodiment, the electrical cabinet heat dissipation system control apparatus 110 is applied to an electrical cabinet heat dissipation system, and the apparatus includes:
the operation module 1101 is used for controlling the fan to operate through the control circuit so as to radiate heat of the electrical cabinet;
the state feedback module 1102 is configured to acquire an operating state of the fan through the feedback loop;
and the display module 1103 is used for sending the running state of the fan to a display screen for displaying.
The embodiment of the application also provides a storage medium, wherein a computer program is stored on the storage medium, and when the computer program is run by a processor, the control method of the electrical cabinet heat dissipation system is executed.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The electrical cabinet heat dissipation system is characterized by comprising a control circuit and a fan;
the control circuit is electrically connected with the fan and used for controlling the fan to operate so as to radiate heat of the electrical cabinet;
the control circuit comprises a feedback loop, and the feedback loop is used for sending the running state of the fan to the display screen through a network bus.
2. The electrical cabinet cooling system according to claim 1, wherein the control circuit further comprises a state feedback relay, the state feedback relay is electrically connected to the feedback loop, and the feedback loop is configured to output a rated voltage or no voltage of the state feedback relay according to an operating state of the fan, so as to control a normally open contact of the state feedback relay to be closed or opened;
the control circuit further comprises a network I/O module, the network I/O module is electrically connected with the state feedback relay, the network I/O module is used for obtaining level signals according to the closing or opening state of a normally open contact of the state feedback relay, the level signals comprise high level signals and low level signals, the high level signals are used for indicating that the fan works normally, and the low level signals are used for indicating that the fan breaks down.
3. The electrical cabinet cooling system according to claim 2, wherein the feedback loop comprises a feedback end, and when the rotation speed of the fan is not within a rated range, the feedback loop is configured to control the feedback end not to output a voltage, so that a normally open contact of the state feedback relay is opened;
and when the normally open contact of the state feedback relay is disconnected, the network I/O module obtains low level.
4. The electrical cabinet cooling system according to claim 3, wherein when the rotation speed of the fan is within a rated range, the feedback loop is configured to output a rated voltage of the state feedback relay through the feedback terminal, so that a normally open contact of the state feedback relay is closed;
and when the normally open contact of the state feedback relay is closed, the network I/O module obtains high level.
5. The electrical cabinet cooling system of claim 1, wherein the control circuit comprises a power module, a blower-powered circuit breaker, a first alarm relay, a second alarm relay, and a fan-operated contactor;
the power supply module is electrically connected with the fan power supply circuit breaker and supplies power to the fan when the fan power supply circuit breaker is closed;
the fan power supply circuit breaker is electrically connected with the first alarm relay and the second alarm relay, and the normally closed contacts of the first alarm relay and the second alarm relay are connected in series;
first warning relay with second warning relay's normally closed contact establish ties after with fan operation contactor electricity is connected, just fan operation contactor with the fan electricity is connected when fan operation contactor is closed, the fan is in operating condition.
6. The electrical cabinet cooling system according to any one of claims 1 to 5, further comprising a vehicle control unit and a switch;
the network I/O module is specifically used for sending a level signal to the switch through the vehicle control unit;
the switch is used for displaying the running state of the fan in the display screen according to the level signal sent by the network I/O module.
7. An electrical cabinet heat dissipation system control method applied to the electrical cabinet heat dissipation system of any one of claims 1 to 6, the method comprising:
the fan is controlled to operate through the control circuit so as to radiate heat of the electrical cabinet;
acquiring the running state of the fan through the feedback loop;
and sending the running state of the fan to a display screen for displaying.
8. The method of claim 7, wherein the feedback loop includes a state feedback relay, and wherein obtaining the operational state of the wind turbine through the feedback loop comprises:
outputting rated voltage or non-output voltage of the state feedback relay according to the working state of the fan so as to control the normally open contact of the state feedback relay to be closed or opened;
and inputting a corresponding level signal to a network I/O module according to the state of a normally open contact of the state feedback relay, wherein the level signal comprises a high level and a low level, the high level is used for indicating that the fan works normally, and the low level is used for indicating that the fan breaks down.
9. An electrical cabinet heat dissipation system control device applied to the electrical cabinet heat dissipation system of any one of claims 1 to 6, the device comprising:
the operation module is used for controlling the fan to operate through the control circuit so as to radiate heat of the electrical cabinet;
the state feedback module is used for acquiring the running state of the fan through the feedback loop;
and the display module is used for sending the running state of the fan to a display screen for displaying.
10. A storage medium, characterized in that the storage medium has stored thereon a computer program which, when being executed by a processor, performs the method according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110687354.8A CN113328366A (en) | 2021-06-21 | 2021-06-21 | Electrical cabinet heat dissipation system, control method and device and storage medium |
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| CN201138450Y (en) * | 2007-12-25 | 2008-10-22 | 青岛四方车辆研究所有限公司 | Passenger car electricity integrated control cabinet |
| KR20130055324A (en) * | 2011-11-18 | 2013-05-28 | (주)마스 | Monitoring system for fan operating |
| CN103149868A (en) * | 2011-12-06 | 2013-06-12 | 北京交控科技有限公司 | Relay failure safety circuit |
| CN110792623A (en) * | 2019-11-26 | 2020-02-14 | 中国华能集团清洁能源技术研究院有限公司 | Intelligent inspection system for fan of control cabinet of wind turbine generator and working method of intelligent inspection system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138450Y (en) * | 2007-12-25 | 2008-10-22 | 青岛四方车辆研究所有限公司 | Passenger car electricity integrated control cabinet |
| KR20130055324A (en) * | 2011-11-18 | 2013-05-28 | (주)마스 | Monitoring system for fan operating |
| CN103149868A (en) * | 2011-12-06 | 2013-06-12 | 北京交控科技有限公司 | Relay failure safety circuit |
| CN110792623A (en) * | 2019-11-26 | 2020-02-14 | 中国华能集团清洁能源技术研究院有限公司 | Intelligent inspection system for fan of control cabinet of wind turbine generator and working method of intelligent inspection system |
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