Fan control device for electrical equipment

Abstract

The embodiment of the utility model provides a fan control device for electrical equipment, and belongs to the technical field of electrical equipment. The fan control device comprises a power supply part, a control assembly and a timing part. The power supply part, the contactor and the on-off control part are arranged in the electrical equipment; the power supply part is electrically connected with the on-off control part, the contactor and the fan in sequence; the remote control part is in wireless communication connection with the on-off control part, the timing part is electrically connected with the power supply part through the contactor, and the on-off control part is closed to enable the contactor to be electrified from the power supply part when receiving an on instruction sent by the remote control part; when the contactor is powered on from the power supply part, the power supply part and the fan are electrically connected, the fan is powered on and started, and meanwhile the timing part is started to time running of the fan. And when receiving a closing instruction sent by the remote control part, the on-off control part is switched off to enable the contactor to be powered off. According to the fan control device provided by the embodiment of the invention, the operation time for ventilating the interior of the equipment can be saved, and the ventilation duration can be controlled more accurately.

Description

Technical Field

[0001] The present application relates to the technical field of electric power equipment, and in particular to a fan control device for electric equipment. Background Art

[0002] High-voltage power distribution equipment uses gas-insulated fully enclosed switchgear (GIS) to replace traditional outdoor power distribution facilities, which can reduce the equipment footprint and improve the safety and reliability of the system. GIS consists of circuit breakers, disconnectors, grounding switches, transformers, lightning arresters, etc. These components are all enclosed in a metal grounded casing, which is filled with sulfur hexafluoride insulating gas at a certain pressure; in order to prevent sulfur hexafluoride from leaking and accumulating in the equipment room where the GIS is located, causing safety hazards, it is necessary to install a fan in the GIS room.

[0003] In the related art, a power supply and a fan are arranged in the GIS room, a manual switch is arranged at the door, the fan is located at the vent, and the power supply is electrically connected to the manual switch and the fan in sequence. In this way, before the operator enters the GIS room, the manual switch is closed to power on the fan to ventilate the interior of the GIS room. At the same time, according to the operation requirements, the operator uses a timing tool to time the ventilation time when the fan is started, so that when the ventilation time is reached, the operator can operate the manual switch to disconnect it and then enter the GIS room.

[0004] However, in some application scenarios, since new energy sites are equipped with multiple high-voltage power distribution equipment using GIS, it takes a long time for operators to inspect and maintain each device in turn according to work requirements, and errors are prone to occur in the control of ventilation timing. Utility Model Content

[0005] An embodiment of the present application provides a fan control device for electrical equipment, which is used to solve the problem in the related art that the inspection and maintenance of various electrical equipment in new energy stations is time-consuming and the control of ventilation timing is prone to errors.

[0006] The fan control device for electrical equipment provided in an embodiment of the present application is provided. The electrical equipment is provided with at least one fan, and the fan is arranged opposite to the ventilation port of the electrical equipment. The fan control device includes a power supply, a control component and a timing component; the control component includes a contactor, an opening and closing control component and a remote control component; the power supply, the contactor and the opening and closing control component are all used to be arranged in the electrical equipment, and the power supply, the opening and closing control component and the contactor are electrically connected in sequence, and the contactor is used to be electrically connected to the fan; the remote control component is wirelessly connected to the opening and closing control component, and the remote control component is used to send an opening instruction or a closing instruction to the opening and closing control component; the opening and closing control component is configured to close when receiving an opening instruction so that the contactor is powered by the power supply; and to open when receiving a closing instruction so that the contactor loses power; the contactor is used to electrically connect the power supply and the fan when it is powered by the power supply, so that the fan is powered and started; the timing component is electrically connected to the power supply through the contactor, and the timing component is configured to start when the contactor is powered by the power supply to time the operation of the fan.

[0007] In one possible implementation, in a fan control device for electrical equipment provided in an embodiment of the present application, the on / off control component is a relay, the relay includes a relay body and a first wireless receiving module electrically connected to the relay body; the first wireless receiving module is electrically connected to the power supply, the relay body is electrically connected to the contactor, and the first wireless receiving module is wirelessly connected to the remote control component; the first wireless receiving module is used to receive an on command or a off command, and the first wireless receiving module is configured to, when receiving an on command or a off command, drive the contacts of the relay body to close or release, so that the contactor receives or loses power from the power supply.

[0008] In one possible implementation, in a fan control device for electrical equipment provided in an embodiment of the present application, the on / off control component is a wireless remote control switch, which includes a switch body and a second wireless receiving module electrically connected to the switch body; the second wireless receiving module is electrically connected to the power supply, the switch body is electrically connected to the contactor, and the second wireless receiving module is wirelessly connected to the remote control component; the second wireless receiving module is used to receive an on command or a off command, and the second wireless receiving module is configured to, when receiving an on command or a off command, drive the switch body to close or open, so that the contactor obtains or loses power from the power supply.

[0009] In a possible implementation, in the fan control device for electrical equipment provided in the embodiment of the present application, the remote control component is a wireless remote control, and the wireless remote control includes a wireless transmission module; the wireless transmission module is communicatively connected with the second wireless receiving module.

[0010] In one possible implementation, in the fan control device for electrical equipment provided in the embodiment of the present application, the timing component is a timer, and the timer is used to be set outside the electrical equipment; the timer is provided with a display screen, and the timer is used to display the timing duration through the display screen when it is started to time the operation of the fan.

[0011] In one possible implementation, the fan control device for electrical equipment provided in the embodiment of the present application, the timing component includes a time relay and an alarm, and the time relay and the alarm are used to be set in the electrical equipment; the coil of the time relay is electrically connected to the power supply through the contactor, and the contacts of the time relay are electrically connected to the alarm; the time relay is configured so that when the contactor is energized, the coil of the time relay is energized to start timing; when the preset time is reached, the contacts of the time relay are closed, so that the alarm is energized to issue an alarm.

[0012] In one possible implementation, the fan control device for electrical equipment provided in the embodiment of the present application, the contactor includes an electromagnetic module and a normally open contact; the power supply is used to be electrically connected to the fan through the normally open contact, and the power supply is electrically connected to the opening and closing control component, the electromagnetic module and the normally open contact in sequence; the electromagnetic module is configured to obtain power from the power supply when the opening and closing control component receives an opening command, so as to drive the normally open contact to close, so that the power supply and the fan are electrically connected.

[0013] In one possible implementation, the fan control device for electrical equipment provided in an embodiment of the present application further includes a protection component, the protection component includes a first circuit breaker and at least one second circuit breaker; the first circuit breaker is electrically connected between the power supply and the normally open contact, the second circuit breaker is used to be set one-to-one with the fan, and the second circuit breaker is electrically connected between the normally open contact and the corresponding fan.

[0014] In a possible implementation, in the fan control device for electrical equipment provided in the embodiment of the present application, the power supply is a three-phase AC power supply.

[0015] In one possible implementation, the fan control device for electrical equipment provided in an embodiment of the present application further includes a wiring assembly, which includes a main three-phase line and at least one branch three-phase line; the three-phase AC power supply is connected to the start and close control component and the contactor in sequence through the main three-phase line, and the branch three-phase line is used to be connected to the fan one-to-one, and each branch three-phase line is connected to the main three-phase line.

[0016] The fan control device for electrical equipment provided in the embodiment of the present application is configured to electrically connect the power supply, the on-off control and the contactor in sequence by providing a power supply, an on-off control and a contactor, and electrically connect the power supply, the on-off control and the contactor in sequence, and electrically connect the contactor to the fan in the electrical equipment, so that when the overall electrical connection circuit is connected, the power supply can supply power to the fan, so that the fan is powered on to ventilate the inside of the equipment; in order to enable the operator to control the connection of the electrical connection circuit and the ventilation duration, a remote control and a timing component are provided, and the remote control is wirelessly connected to the on-off control component, and the timing component is electrically connected to the power supply through the contactor, so that when the on-off control receives an opening instruction sent by the remote control, the on-off control is closed so that the contactor is powered from the power supply, and when the contactor is powered from the power supply, the power supply and the fan are electrically connected, so that the fan is powered on and started, and at the same time the timing component is started to time the operation of the fan; when the on-off control receives a closing instruction sent by the remote control, the on-off control is disconnected to de-energize the contactor.

[0017] Therefore, the fan control device for electrical equipment provided in the embodiment of the present application can wirelessly control the opening and closing of the fan through a remote control component without the need for an operator to go to the front of the electrical equipment, and can automatically time the operation of the fan through a timing component when the fan is started, thereby saving the operating time for ventilation inside the equipment and providing more accurate control of the ventilation duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 A schematic diagram of the structure of an electrical device provided in an embodiment of the present application;

[0020] Figure 2 Connection between a fan control device for electrical equipment and a fan provided in an embodiment of the present application Figure 1 ;

[0021] Figure 3 A circuit diagram of a fan control device for electrical equipment provided in an embodiment of the present application;

[0022] Figure 4 Connection between a fan control device for electrical equipment and a fan provided in an embodiment of the present application Figure 2 ;

[0023] Figure 5 Connection between a fan control device for electrical equipment and a fan provided in an embodiment of the present application Figure 3 .

[0024] Description of reference numerals:

[0025] 100-power supply;

[0026] 200-control component; 210-contactor; 220-opening and closing control component; 230-remote control component;

[0027] 211-electromagnetic module; 212-normally open contact; 221-relay; 222-wireless remote control switch; 231-wireless transmission module;

[0028] 2211-relay body; 2212-first wireless receiving module; 2221-switch body; 2222-second wireless receiving module;

[0029] 300-timing device; 310-timer; 320-time relay; 330-alarm;

[0030] 400-protection component; 410-first circuit breaker; 420-second circuit breaker;

[0031] 500-wiring assembly; 510-main three-phase line; 520-branch three-phase line;

[0032] 600-Electrical equipment; 610-Ventilation vent; 620-Fan;

[0033] 621-Motor. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0037] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein.

[0038] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0039] As mentioned in the background technology, high-voltage power distribution equipment uses gas-insulated fully enclosed switchgear (GIS) to replace traditional outdoor power distribution facilities, which can reduce the equipment footprint and improve the safety and reliability of the system. GIS consists of circuit breakers, disconnectors, grounding switches, mutual inductors, lightning arresters, etc. These components are all enclosed in a metal grounded casing, which is filled with sulfur hexafluoride insulating gas at a certain pressure.

[0040] During actual use, sulfur hexafluoride gas will decompose under the influence of electric arc, partial discharge, high temperature and other factors. Since sulfur hexafluoride and its decomposition products are toxic and harmful to human health, in order to prevent sulfur hexafluoride from leaking and accumulating in the equipment room where the GIS is located, before the operating personnel enter the GIS room, the content of sulfur hexafluoride gas in the GIS room needs to be controlled to avoid exceeding the standard and causing safety hazards.

[0041] In the related art, a power supply and a fan are arranged in the GIS room, and a manual switch is arranged at the door, the fan is located at the vent, and the power supply is electrically connected to the manual switch and the fan in sequence. In this way, before the operator enters the GIS room, the manual switch is closed to power on the fan to ventilate the interior of the GIS room. At the same time, according to the operation requirements, the operator uses a timing tool to time the ventilation time when the fan is started, so that when the ventilation time is reached, the operator can operate the manual switch to disconnect it and then enter the GIS room.

[0042] However, in some application scenarios, since the new energy stations are equipped with multiple high-voltage power distribution equipment using GIS, when the operating personnel inspect and maintain each equipment in turn according to the operating requirements, after completing the inspection task of the previous equipment, they need to move to the next equipment to operate the manual switch to turn on and wait for the ventilation to be completed. This cycle continues, which is time-consuming overall. At the same time, when the operating personnel operate the timing tool to time the ventilation time, if the time of operating the timing tool is earlier or later than the time when the fan is started, there will be errors in the control of the ventilation timing.

[0043] In view of this, an embodiment of the present application provides a fan control device for electrical equipment, which provides a power supply, an on / off control component and a contactor, electrically connects the power supply, the on / off control component and the contactor in sequence, and electrically connects the contactor to the fan in the electrical equipment. When the overall electrical connection circuit is connected, the power supply can supply power to the fan, so that the fan can be electrically started to ventilate the interior of the equipment.

[0044] In order to enable the operator to control the connectivity of the electrical connection circuit and control the ventilation duration, a remote control component and a timing component are set up to wirelessly connect the remote control component to the opening and closing control component, and the timing component is electrically connected to the power supply component through a contactor. In this way, the operator sends an opening command to the opening and closing control component by operating the remote control component. When the opening and closing control component receives the opening command, the opening and closing control component is closed to allow the contactor to obtain power from the power supply component. When the contactor obtains power from the power supply component, the power supply component and the fan are electrically connected, so that the fan is powered and started; at the same time, the timing component is started to time the operation of the fan, thereby providing the operator with ventilation duration information, and then the operator sends a closing command to the opening and closing control component by operating the remote control component based on the information and combined with the operating requirements. When the opening and closing control component receives the closing command, the opening and closing control component is disconnected to de-energize the contactor, thereby turning off the fan.

[0045] Therefore, the fan control device for electrical equipment provided in the embodiment of the present application can wirelessly control the opening and closing of the fan through the remote control component without the need for the operator to go to the front of the electrical equipment, thereby saving the operating time for internal ventilation of the equipment; when the fan is started, the timing component can automatically time the operation of the fan, and the control of the ventilation time is more accurate.

[0046] See also Figures 1 to 3 In the fan control device for electrical equipment provided in the embodiment of the present application, the electrical equipment 600 is provided with at least one fan 620, and the fan 620 is arranged opposite to the vent 610 of the electrical equipment 600. The fan 620 control device may include a power supply component 100, a control component 200 and a timing component 300; the control component 200 includes a contactor 210, an opening and closing control component 220 and a remote control component 230.

[0047] The power supply 100, the contactor 210 and the opening and closing control component 220 are all used to be set in the electrical equipment 600, and the power supply 100, the opening and closing control component 220 and the contactor 210 are electrically connected in sequence, and the contactor 210 is used to be electrically connected to the fan 620; the remote control component 230 is wirelessly connected to the opening and closing control component 220, and the remote control component 230 is used to send an opening instruction or a closing instruction to the opening and closing control component 220; the opening and closing control component 220 is configured to, when receiving an opening instruction, close so that the contactor 210 obtains power from the power supply 100; when receiving a closing instruction, open so that the contactor 210 loses power.

[0048] The contactor 210 is used to electrically connect the power supply 100 and the fan 620 when it receives power from the power supply 100, so that the fan 620 is powered and started; the timing component 300 is electrically connected to the power supply 100 through the contactor 210, and the timing component 300 is configured to start when the contactor 210 receives power from the power supply 100 to time the operation of the fan 620.

[0049] It should be noted that the electrical equipment 600 of the embodiment of the present application includes high-voltage power distribution equipment using GIS. In addition, it may also include other electrical equipment in new energy stations that are equipped with fans and require ventilation, such as inverters in photovoltaic power stations, thermal management systems of battery energy storage systems, etc. Furthermore, the electrical equipment 600 is equipped with a fan 620, and the interior of the equipment can be ventilated by arranging a fan 620 relative to the vent 610 of the electrical equipment 600; more than two fans 620 may also be arranged to increase convection and further optimize the ventilation effect. It is understandable that, in combination with Figure 1 As shown, when the electrical device 600 is a high-voltage power distribution device using GIS, the GIS and the fan are both arranged in the electrical device 600.

[0050] Specifically, the power supply 100 serves as an electric energy supply source for the fan control device, and is used to supply power to the fan 620 and other components electrically connected thereto; the opening and closing control component 220 is connected to the remote control component 230 via wireless communication, and is used to realize remote start and stop control of the fan 620; the contactor 210 serves as an actuator, and is used to connect or disconnect the power supply of the power supply 100 to the fan 620 when the opening and closing control component 220 receives an instruction from the remote control component 230; wherein, the contactor 210 is electrically connected to the fan 620, that is, the contactor 210 is connected to the motor 621 of the fan 620.

[0051] Furthermore, the timing component 300 is electrically connected to the power supply component 100 via the contactor 210, and can automatically start timing when the fan 620 is started, thereby providing the operator with information on the ventilation duration. In addition, the timing component 300 can also help predict maintenance needs by recording the actual operating time of the fan 620, thereby avoiding overheating or other failures caused by long-term operation of the fan 620.

[0052] It is understandable that a power supply 100, a contactor 210 and an on / off control component 220 are arranged inside a high-voltage power distribution device using GIS or other electrical equipment equipped with a fan and requiring ventilation. Since the on / off control component 220 and the remote control component 230 are wirelessly connected, wiring between the two can be avoided, thereby simplifying the internal layout of the electrical equipment 600, reducing installation costs and facilitating subsequent maintenance work. In addition, in actual operating scenarios, the on / off control component 220 and the remote control component 230 are wirelessly connected, which provides a convenient means of operation for operators, that is, the operator does not need to go to the front of the electrical equipment 600 to control the on / off of the fan 620 through the remote control component 230, which is conducive to improving the flexibility and efficiency of operation.

[0053] It should be noted that the distance between the operator and the electrical equipment 600 for remote start and stop control of the fan 620 can be achieved by selecting a corresponding remote control component 230 and a start and stop control component 220 according to different actual scenarios and work requirements.

[0054] For example, when it is necessary to ventilate the inverter of a photovoltaic power station, the operator can control the remote control component 230 at a first distance between the operator and the inverter to send an opening command to the opening and closing control component 220. When the opening and closing control component 220 receives the opening command, the opening and closing control component 220 closes to allow the contactor 210 to obtain power from the power supply component 100. When the contactor 210 obtains power from the power supply component 100, the power supply component 100 and the fan 620 are electrically connected, so that the fan 620 is powered and started; at the same time, the timing component 300 is started to time the operation of the fan 620.

[0055] After the operator sends a start command through the remote control 230 to start the fan 620, he can walk towards the inverter. Since the timing component 300 provides the operator with the ventilation time information, after the operator walks to the location of the inverter, he checks the ventilation conditions inside the inverter and controls the remote control 230 to send a closing command to the opening and closing control component 220 based on the ventilation time information. When the opening and closing control component 220 receives the closing command, the opening and closing control component 220 is disconnected to de-energize the contactor 210, thereby turning off the fan 620.

[0056] For another example, when it is necessary to inspect multiple high-voltage power distribution equipment using GIS deployed in new energy stations, the interior of each high-voltage power distribution equipment using GIS needs to be ventilated for a preset time according to the operation requirements. For example, the preset time may be fifteen minutes. The operator can control the remote control 230 to send an opening command at a position with a second distance between him and any high-voltage power distribution equipment using GIS. The working principle of each component is the same as that in the aforementioned embodiment and will not be repeated here.

[0057] Here, after the operator completes the inspection of the previous high-voltage distribution equipment using GIS, when the operator goes to a position at a second distance from the next high-voltage distribution equipment using GIS, he can control the remote control 230 to send an opening command, wherein the first time length used by the operator when arriving at the next high-voltage distribution equipment using GIS can be greater than or equal to the preset time length, or can be less than the preset time length. When the first time length is greater than or equal to the preset time length, the operator controls the remote control 230 to send a closing command according to the ventilation time length information provided by the timing component 300, so that after arriving at the next high-voltage distribution equipment using GIS, the operator can enter the equipment for inspection without waiting; when the first time length is less than the preset time length, after arriving at the next high-voltage distribution equipment using GIS, the operator can control the remote control 230 to send a closing command after waiting for the second time length according to the ventilation time length information provided by the timing component 300. It can be understood that the second time length is less than the preset time length, and the sum of the first time length and the second time length is the preset time length.

[0058] Therefore, the fan control device for electrical equipment provided in the embodiment of the present application can wirelessly control the opening and closing of the fan 620 through the remote control component 230 without the need for the operator to go to the front of the electrical equipment 600, thereby saving the operation time for ventilating the inside of the equipment; when the fan 620 is started, the timing component 300 can automatically time the operation of the fan 620, and the control of the ventilation time is more accurate.

[0059] See also Figures 1 to 4 In some embodiments, the opening and closing control component 220 is a relay 221, and the relay 221 includes a relay body 2211 and a first wireless receiving module 2212 electrically connected to the relay body 2211; the first wireless receiving module 2212 is electrically connected to the power supply 100, the relay body 2211 is electrically connected to the contactor 210, and the first wireless receiving module 2212 is wirelessly connected to the remote control component 230; the first wireless receiving module 2212 is used to receive an opening instruction or a closing instruction, and the first wireless receiving module 2212 is configured to drive the contacts of the relay body 2211 to be attracted or released when receiving an opening instruction or a closing instruction, so that the contactor 210 can obtain or lose power from the power supply 100.

[0060] By setting it in this way, the contact of the relay body 2211 can be remotely controlled to be closed and released, so as to realize the on-off of the electrical connection circuit, so that the contactor 210 can be powered or de-powered from the power supply 100, and the start and stop of the fan 620 can be controlled.

[0061] The embodiment of the present application does not limit the specific types of the first wireless receiving module 2212 and the remote control component 230, as long as the two are coordinated so that the first wireless receiving module 2212 can receive wireless commands and convert them into control signals.

[0062] Exemplarily, the first wireless receiving module 2212 can be set as an RF wireless receiving module, and the remote control 230 can be set as an RF remote control; the RF wireless receiving module controls the relay body 2211 to close or open by receiving a specific coded signal from the RF remote control, thereby controlling the state of the contactor 210 to achieve remote start and stop of the fan 620.

[0063] The first wireless receiving module 2212 can also be set as a Wi-Fi wireless receiving module, and the remote control component 230 can be set as a mobile terminal or a cloud platform, etc.; it is connected to the local Wi-Fi network through the Wi-Fi wireless receiving module, receives control instructions from the mobile terminal or the cloud platform, etc., and after processing, drives the contact of the relay body 2211 to be attracted and released, so as to control the working status of the contactor 210 and the fan 620.

[0064] In addition, the first wireless receiving module 2212 can also be set as a Bluetooth receiving module, which is paired with a smart phone or tablet computer via Bluetooth, receives control signals sent from these devices, controls the action of the relay body 2211, and adjusts the working status of the contactor 210 and the fan 620.

[0065] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 In some examples, the opening and closing control component 220 is a wireless remote control switch 222, which includes a switch body 2221 and a second wireless receiving module 2222 electrically connected to the switch body 2221; the second wireless receiving module 2222 is electrically connected to the power supply 100, the switch body 2221 is electrically connected to the contactor 210, and the second wireless receiving module 2222 is wirelessly connected to the remote control component 230; the second wireless receiving module 2222 is used to receive an opening instruction or a closing instruction, and the second wireless receiving module 2222 is configured to drive the switch body 2221 to close or open when receiving an opening instruction or a closing instruction, so that the contactor 210 obtains or loses power from the power supply 100.

[0066] In this configuration, the wireless remote control switch 222 integrates a second wireless receiving module 2222 to receive and analyze the command signal from the remote control component 230, and controls the closing and opening of the switch body 2221; the switch body 2221 serves as an actuator to realize the opening and closing of the electrical connection circuit, and controls the power supply component 100 to supply power to the contactor 210.

[0067] Furthermore, the remote control component 230 is a wireless remote control, which includes a wireless transmitting module 231 ; the wireless transmitting module 231 is communicatively connected with the second wireless receiving module 2222 .

[0068] In specific implementation, the wireless remote controller can provide an operation interface for operators, so that operators can simply and intuitively send wireless commands to open or close. The overall structural design of the wireless remote controller is easy to carry, easy to operate, and can improve human-computer interaction.

[0069] Exemplarily, the second wireless receiving module 2222 and the wireless transmitting module 231 can perform wireless communication based on radio frequency (RF), thereby meeting the remote control requirements of long-distance scenes, and the transmission command signal has good penetration and anti-interference capabilities; alternatively, the second wireless receiving module 2222 and the wireless transmitting module 231 of the remote control can perform wireless communication based on infrared (IR) technology, thereby making the wireless remote control low-cost and simple in structure.

[0070] See also Figure 5 In some embodiments, the timing element 300 is a timer 310, which is used to be set outside the electrical device 600; the timer 310 is provided with a display screen, and the timer 310 is used to display the timing duration through the display screen when it is started to time the operation of the fan 620.

[0071] Therefore, the display screen on the timer 310 displays the cumulative running time of the fan 620, so that the operator can intuitively understand the cumulative running time of the fan 620. At the same time, it can prevent the operator from entering the high voltage or harmful gas environment of the electrical equipment 600, which is conducive to reducing safety risks.

[0072] See also Figure 4 In some examples, the timing component 300 includes a time relay 320 and an alarm 330, which are used to be set in the electrical device 600; the coil of the time relay 320 is electrically connected to the power supply 100 through the contactor 210, and the contacts of the time relay 320 are electrically connected to the alarm 330; the time relay 320 is configured so that when the contactor 210 is energized, the coil of the time relay 320 is energized to start timing; when the preset time is reached, the contacts of the time relay 320 are closed, so that the alarm 330 is energized and an alarm is issued.

[0073] In this way, when the fan 620 runs for a preset time, the time relay 320 automatically triggers the alarm 330 to sound an alarm to remind the operator that the ventilation in the electrical equipment 600 has reached the preset time, so that the remote control 230 can be controlled to send a shutdown command.

[0074] In specific implementation, the alarm 330 is located in the internal environment of the electrical equipment 600 which is not easily perceived by the operator. It can remind the operator through a sound alarm. In addition, the alarm can also be sent to the operator's mobile device through the built-in communication module of the alarm 330. As long as the notification is in place, the operator can be prevented from entering the high voltage or harmful gas environment of the electrical equipment 600 and the safety risk can be reduced.

[0075] It can be understood that by integrating the time relay 320 and the alarm 330 inside the device, space utilization is optimized, the complexity of external circuits is reduced, and while the integration of the fan control device and the electrical equipment 600 is enhanced, the time relay 320 and the alarm 330 are protected from the influence of the external environment, thereby improving the stability of the fan control device.

[0076] See also Figure 3 In a specific example, the contactor 210 includes an electromagnetic module 211 and a normally open contact 212; the power supply 100 is used to be electrically connected to the fan 620 through the normally open contact 212, and the power supply 100 is electrically connected to the opening and closing control component 220, the electromagnetic module 211 and the normally open contact 212 in sequence; the electromagnetic module 211 is configured to obtain power from the power supply 100 when the opening and closing control component 220 receives an opening instruction, so as to drive the normally open contact 212 to close, so that the power supply 100 and the fan 620 are electrically connected.

[0077] With such a design, when the remote control unit 230 sends a command, each component on the electrical connection circuit can execute the working sequence according to the correct control logic. For example, when controlling the start of the fan 620, the start condition is first verified through the opening and closing control unit 220, and then the electrical connection circuit is connected through the cooperation of the electromagnetic module 211 and the normally open contact 212, and finally the power supply 100 completes the transmission of electric energy, so that the fan 620 is started.

[0078] Specifically, the electromagnetic module 211 serves as a driving core, which uses electromagnetic force to accurately control the closing and opening of the normally open contact 212 .

[0079] Continue reading Figure 3 In some embodiments, the fan control device for electrical equipment also includes a protection component 400, the protection component 400 includes a first circuit breaker 410 and at least one second circuit breaker 420; the first circuit breaker 410 is electrically connected between the power supply 100 and the normally open contact 212, the second circuit breaker 420 is used to be set one-to-one with the fan 620, and the second circuit breaker 420 is electrically connected between the normally open contact 212 and the corresponding fan 620.

[0080] Specifically, by setting the first circuit breaker 410 between the power supply 100 and the normally open contact 212, the first circuit breaker 410 is used to quickly cut off the power supply of the power supply 100 when a short circuit, overload or current abnormality occurs in the overall electrical connection circuit, thereby avoiding the expansion of the fault and protecting the fan control device from excessive damage.

[0081] By equipping each fan 620 with a corresponding second circuit breaker 420, independent protection of each fan 620 is achieved. In this way, even if a certain fan 620 fails, such as overheating, short circuit, etc., only the second circuit breaker 420 of the fan 620 will be actuated, and the normal operation of other fans 620 will not be affected, thereby improving the stability and fault isolation capability of the system. At the same time, it is also convenient for operators to quickly troubleshoot and repair faults, thereby improving maintenance efficiency.

[0082] In a specific example, the power supply 100 is a three-phase AC power supply.

[0083] It can be understood that a three-phase AC power supply refers to a power supply system consisting of three AC potentials with the same frequency, equal amplitude and a phase difference of 120 degrees electrical angle.

[0084] With this configuration, the three-phase AC power supply can provide a more balanced load distribution and higher power output, providing stable and sufficient power support for the entire fan 620 control device, ensuring that all components work together efficiently, reducing the failure rate caused by power supply problems, and at the same time meeting the startup and operation requirements of the high-power fan 620 inside the electrical equipment 600.

[0085] Furthermore, the fan control device for electrical equipment also includes a wiring assembly 500, which includes a main three-phase line 510 and at least one branch three-phase line 520; the three-phase AC power supply is connected to the start and close control component 220 and the contactor 210 in sequence through the main three-phase line 510, and the branch three-phase line 520 is used to be connected one-to-one with the fan 620, and each branch three-phase line 520 is connected to the main three-phase line 510.

[0086] It can be understood that the main three-phase line 510 and the branch three-phase line 520 are used to clearly define the line distribution of the electrical connection of the power supply 100, the opening and closing control component 220, the contactor 210 and the fan 620 to ensure balanced current distribution; in addition, a reasonable wiring design can also be implemented to avoid the risks of overload and short circuit.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fan control device for an electrical device, wherein the electrical device is provided with at least one fan, wherein the fan is arranged opposite to a vent of the electrical device, wherein: The fan control device includes a power supply unit, a control component and a timing unit; the control component includes a contactor, an on / off control unit and a remote control unit; The power supply, the contactor and the on / off control component are all used to be arranged in the electrical equipment, and the power supply, the on / off control component and the contactor are electrically connected in sequence, and the contactor is used to be electrically connected to the fan; The remote control is wirelessly connected to the on / off control component, and the remote control is used to send an opening instruction or a closing instruction to the on / off control component; the on / off control component is configured to close upon receiving the opening instruction so that the contactor is powered by the power supply component; upon receiving the closing instruction, disconnecting to de-energize the contactor; The contactor is used to electrically connect the power supply and the fan when it receives power from the power supply, so that the fan is powered on and started; the timing component is electrically connected to the power supply through the contactor, and the timing component is configured to start when the contactor receives power from the power supply to time the operation of the fan.

2. The fan control device for electrical equipment according to claim 1, characterized in that: The on / off control element is a relay, and the relay comprises a relay body and a first wireless receiving module electrically connected to the relay body; The first wireless receiving module is electrically connected to the power supply, the relay body is electrically connected to the contactor, and the first wireless receiving module is wirelessly connected to the remote control; The first wireless receiving module is used to receive the opening instruction or the closing instruction. The first wireless receiving module is configured to drive the contacts of the relay body to be attracted or released when receiving the opening instruction or the closing instruction, so that the contactor can obtain power or lose power from the power supply.

3. The fan control device for electrical equipment according to claim 1, characterized in that: The on / off control element is a wireless remote control switch, which includes a switch body and a second wireless receiving module electrically connected to the switch body; The second wireless receiving module is electrically connected to the power supply, the switch body is electrically connected to the contactor, and the second wireless receiving module is wirelessly connected to the remote control; The second wireless receiving module is used to receive the opening instruction or the closing instruction. The second wireless receiving module is configured to drive the switch body to close or open when receiving the opening instruction or the closing instruction, so that the contactor obtains power or loses power from the power supply.

4. The fan control device for electrical equipment according to claim 3, characterized in that: The remote control component is a wireless remote control, and the wireless remote control includes a wireless transmission module; The wireless transmitting module is wirelessly connected to the second wireless receiving module.

5. The fan control device for electrical equipment according to any one of claims 1 to 4, characterized in that: The timing element is a timer, and the timer is used to be arranged outside the electrical equipment; The timer is provided with a display screen, and when the timer is started to time the operation of the fan, the timer is used to display the timing duration through the display screen.

6. The fan control device for electrical equipment according to any one of claims 1 to 4, characterized in that: The timing component includes a time relay and an alarm, and the time relay and the alarm are used to be arranged in the electrical equipment; The coil of the time relay is electrically connected to the power supply through the contactor, and the contact of the time relay is electrically connected to the alarm; The time relay is configured such that when the contactor is energized, the coil of the time relay is energized to start timing; when a preset time is reached, the contacts of the time relay are closed, so that the alarm is energized to sound an alarm.

7. The fan control device for electrical equipment according to any one of claims 1 to 4, characterized in that: The contactor comprises an electromagnetic module and a normally open contact; The power supply, the on / off control component, the electromagnetic module and the normally open contact are electrically connected in sequence, and the power supply is used to be electrically connected to the fan through the normally open contact; The electromagnetic module is configured to obtain power from the power supply component when the opening and closing control component receives the opening instruction, so as to drive the normally open contact to close, thereby electrically connecting the power supply component and the fan.

8. The fan control device for electrical equipment according to claim 7, characterized in that: Also included is a protection assembly, the protection assembly including a first circuit breaker and at least one second circuit breaker; The first circuit breaker is electrically connected between the power supply and the normally open contact, and the second circuit breaker is used to be arranged in a one-to-one correspondence with the fan, and the second circuit breaker is electrically connected between the normally open contact and the corresponding fan.

9. The fan control device for electrical equipment according to any one of claims 1 to 4, characterized in that: The power supply is a three-phase AC power supply.

10. The fan control device for electrical equipment according to claim 9, characterized in that: Also included is a wiring assembly, the wiring assembly including a main three-phase line and at least one branch three-phase line; The three-phase AC power supply is connected to the opening and closing control component and the contactor in sequence through the main three-phase line, and the branch three-phase lines are used to be connected to the fans one by one, and each branch three-phase line is connected to the main three-phase line.

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