Deicing control device, method and use

Abstract

This invention discloses a de-icing control device, method, and application, relating to the technical field of de-icing devices. The device includes a de-icing control module for distributing energy in turn to a portion of multiple de-icing units. The method includes a de-icing control step of distributing energy in turn to a portion of multiple de-icing units. The application includes reducing energy consumption per unit time by distributing energy in turn to a portion of multiple de-icing units. The de-icing control module enables de-icing control by distributing energy in turn to a portion of multiple de-icing units.

Description

Technical Field

[0001] This invention relates to the field of de-icing equipment technology, and in particular to a de-icing control device, method and application. Background Technology

[0002] The authorization notice number is CN108979752B, and the title is "De-icing Compressor and De-icing Process for Turbofan Engines." The compressor, also known as a turbocharger, includes an inlet structure through which pressurized hot fluid from a high-pressure compressor is circulated for de-icing. The de-icing structure includes a deformable membrane through which the circulated pressurized fluid passes. If ice accumulates on the membrane, the circulation of the pressurized fluid is impeded, resulting in pressure that deforms the membrane, causing the accumulated ice to break.

[0003] The authorization notice number is CN1012427B, and the name is "De-icing Unit Control System." A pressurized air source is connected to several control valves and a regulating valve, which has a vacuum output line, also connected to these control valves. Driven by a timer, these control valves alternately raise and lower the de-icing unit via pressure and vacuum lines. The control valves also respond to a pressure detector to seal or lock the pressurized de-icing unit in this sequence.

[0004] Authorization notice number CN102438896B, entitled "De-icing Device for Propeller Fan Blades." The device includes a propulsion unit comprising a turbine that drives at least one rotor. The rotor includes multiple blades arranged around an annular crown that moves with the blades. The outer wall of the annular crown forms a partial outer casing of the propulsion unit, which is subjected to atmospheric conditions outside the propulsion unit. The turbine generates a flow of hot gas exiting through an annular pulse tube, which is coaxial with the moving annular crown and whose surface is partially defined by the inner wall of the moving annular crown. The device includes: means for extracting thermal energy from the hot pulse tube, disposed within a moving annular component; means for transferring thermal energy to the rotor blades; and means for distributing thermal energy to at least a portion of the surface of the blades.

[0005] The authorization announcement number is CN111731485B, entitled "An Autonomous Intermittent De-icing Device and Its Installation and De-icing Method." One such autonomous intermittent de-icing device includes a memory material support and an electric heating module. Several memory material supports are arranged, and each support is connected to the electric heating module. When the memory material supports are placed on the inner wall, the electric heating module has two states: State 1: the contact surface of the electric heating module is not in contact with the inner wall; State 2: the contact surface of the electric heating module is in contact with the inner wall. The electric heating module provides localized, instantaneous, and rapid heating of the ice layer. The vaporization of the ice layer at the contact surface with the inner wall generates pressure that can break up a large area of ​​ice. Compared with the slow heating in existing technologies, this device has the advantage of higher energy utilization per unit area for de-icing; it also has the advantages of simple and reliable structure.

[0006] Based on the aforementioned patent documents and existing technical solutions, the existing technical solutions are analyzed as follows.

[0007] In northern my country, icy and snowy weather is frequent in winter, making aircraft surfaces highly susceptible to icing. Icing affects the aerodynamic shape and flight safety, posing a significant hazard. On propeller-driven aircraft, if ice forms on the leading edge of the propeller blades, it disrupts the propeller's aerodynamic and mass balance, causing vibration and preventing normal operation. Therefore, to ensure flight safety, de-icing measures must be implemented for the propeller. Since the surface area for de-icing is relatively small, electrothermal de-icing is the most suitable anti-icing device.

[0008] Existing technical problems and considerations: How to solve the technical problems of aircraft surface de-icing control. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a de-icing control device, method and application, thereby solving the technical problem of de-icing control.

[0010] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a de-icing control device includes a de-icing control module, which is used to distribute energy in turn to a portion of the de-icing units among multiple de-icing units.

[0011] A further technical solution is that the de-icing control module is a program module, which is also used to obtain allocation instructions and allocate them according to the allocation instructions.

[0012] A further technical solution is that the de-icing control module is also used to distribute energy to each de-icing unit in turn.

[0013] A further technical solution is that the de-icing control module includes a controller and multiple drive units. The controller is used to control each drive unit to work in turn, and each drive unit is used to control the energy output and supply the corresponding de-icing unit to work.

[0014] A further technical solution includes a housing, with the drive unit located inside the housing, which is used to shield against interference.

[0015] A further technical solution includes a diode, which is electrically connected to the drive unit and is used to protect the drive unit.

[0016] A further technical solution includes a shunt, with the remote circuit breaker electrically connected to the shunt. The shunt is used to obtain the working data of the de-icing unit and send it to the de-icing ammeter.

[0017] A further technical solution involves using a relay as the driving unit.

[0018] A further technical solution is that the controller is used to control each relay to turn on in turn and to supply power to the corresponding de-icing unit.

[0019] A further technical solution is that: the relay includes a first relay and a second relay, the de-icing unit includes a first de-icing unit and a second de-icing unit, and the partial de-icing unit is one of the two de-icing units.

[0020] A further technical solution is that the controller includes a remote circuit breaker, which is connected to each relay respectively.

[0021] A further technical solution includes a first de-icing control module. When the controller includes a remote circuit breaker, the first de-icing control module is used to enable the remote circuit breaker to receive a standby command, the remote circuit breaker to operate and allow all relays to be powered on, the first relay to be powered on and to supply power to the first de-icing unit, and the second relay to be powered on and to supply power to the second de-icing unit.

[0022] A further technical solution involves using a microcontroller as the controller, with each microcontroller connected to a separate relay.

[0023] A further technical solution includes a second de-icing control module. When the controller is a microcontroller, the second de-icing control module is a program module used by the microcontroller to obtain the allocation instruction and send a first working instruction to the first relay. After receiving the first working instruction, the first relay is turned on and used to power the first de-icing unit. After the microcontroller delays for a first working time, it sends a first pause instruction to the first relay. After receiving the first pause instruction, the first relay is turned off and used to power off the first de-icing unit. The microcontroller sends a second working instruction to the second relay. After receiving the second working instruction, the second relay is turned on and used to power the second de-icing unit. After the microcontroller delays for a second working time, it sends a second pause instruction to the second relay. After receiving the second pause instruction, the second relay is turned off and used to power off the second de-icing unit.

[0024] A further technical solution is that the relay also includes a third relay, the de-icing unit also includes a third de-icing unit, and the partial de-icing unit is one of the three de-icing units.

[0025] A further technical solution is that the first de-icing control module is also used to turn on the third relay after it receives power and to supply power to the third de-icing unit.

[0026] A further technical solution is as follows: the second de-icing control module is also used for the microcontroller to send the third working instruction to the third relay. After receiving the third working instruction, the third relay is turned on and used to supply power to the third de-icing unit. After the microcontroller delays for the third working time, it sends the third pause instruction to the third relay. After receiving the third pause instruction, the third relay is turned off and used to cut off power to the third de-icing unit.

[0027] A further technical solution is that the de-icing unit is a de-icing sleeve, which includes a first de-icing sleeve and a second de-icing sleeve. The first de-icing sleeve is disposed inside the propeller, and the second de-icing sleeve is disposed outside the propeller. The two de-icing sleeves are used to obtain power through a conductive slip ring.

[0028] A de-icing control method includes a de-icing control step of distributing energy in turn to a portion of a plurality of de-icing units.

[0029] A de-icing control device includes a computer-readable storage medium storing a computer program that, when executed by a processor, performs the aforementioned corresponding steps.

[0030] One application involves reducing energy consumption per unit time by distributing energy in rotation to portions of a plurality of de-icing units.

[0031] The beneficial effects of adopting the above technical solution are as follows:

[0032] First, a de-icing control device includes a de-icing control module, which is capable of distributing energy in turn to a portion of the multiple de-icing units. This technical solution, through the de-icing control module, enables the distribution of energy in turn to a portion of the multiple de-icing units, thereby achieving de-icing control.

[0033] Second, a de-icing control method includes a de-icing control step, in which energy is distributed in turn to a portion of the multiple de-icing units. This technical solution achieves de-icing control by distributing energy in turn to a portion of the multiple de-icing units through the de-icing control step.

[0034] Third, one application includes de-icing control by distributing energy in turn to a portion of the multiple de-icing units, thereby reducing energy consumption per unit time.

[0035] See the detailed implementation section for further description. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the de-icing control system of the present invention;

[0037] Figure 2 This is a principle block diagram of Embodiment 1 of the present invention;

[0038] Figure 3 This is a principle block diagram of Embodiment 2 of the present invention;

[0039] Figure 4 This is a principle block diagram of Embodiment 3 of the present invention. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] Example 1:

[0043] like Figure 2 As shown, the present invention discloses a de-icing control device including a de-icing control module, which is capable of alternately distributing energy to two de-icing units.

[0044] The de-icing control module includes a controller and a drive unit. The controller includes a remote circuit breaker, and the drive unit is a relay, which includes a first relay and a second relay. The de-icing unit includes a first de-icing unit and a second de-icing unit. The output terminal of the remote circuit breaker is electrically connected to the first relay, and the output terminal of the remote circuit breaker is electrically connected to the second relay. The controller is used to control each drive unit to work in turn, and each drive unit is used to control the energy output and supply the corresponding de-icing unit to work.

[0045] The remote circuit breaker, the first relay, and the second relay form the first de-icing control hardware module. The first de-icing control module includes the first de-icing control hardware module, which is a combination of hardware units.

[0046] Instructions for use of Example 1:

[0047] Connect the remote circuit breaker's contact 3 to the ground via de-icing, connect the control terminal of the first relay to the positive power supply via a switch, and connect the control terminal of the second relay to the positive power supply via a switch.

[0048] Both the first and second de-icing units are heaters. The first relay is electrically connected to the first de-icing unit, and the second relay is electrically connected to the second de-icing unit.

[0049] The remote circuit breaker, relay, de-icing unit, and switch itself, as well as the corresponding communication connection technology, are existing technologies and will not be described in detail here.

[0050] When the de-icing circuit breaker is pressed, it is turned on. The remote circuit breaker receives the standby command, activates, and allows the first and second relays to be energized.

[0051] Pressing the corresponding switch of the first relay will activate the first relay and power it to the first de-icing unit. Pressing the corresponding switch of the second relay will activate the second relay and power it to the second de-icing unit.

[0052] The de-icing control module of Example 1 can alternately distribute current to the two de-icing units.

[0053] The de-icing unit can be fixedly mounted on the aircraft fuselage to reduce the current per unit time and improve de-icing efficiency. Because the device in Example 1 outputs a constant current at any given moment, different time periods are applied to different de-icing units, eliminating the need for a large current to power both units simultaneously. Since the two de-icing units receive current and are heated alternately, the ice layer in the corresponding areas of the two units is heated unevenly, making it more prone to breakage.

[0054] In addition, the de-icing unit can be fixedly installed on the wing or propeller, and similar details will not be elaborated further.

[0055] Compared to Embodiment 1, the relay also includes a third relay, and the de-icing unit also includes a third de-icing unit. The output terminal of the remote circuit breaker is electrically connected to the third relay, and the control terminal of the third relay is connected to the positive terminal of the power supply via a switch. When the de-icing activation circuit breaker is pressed, it conducts, the remote circuit breaker receives a standby command, and the remote circuit breaker operates, allowing the three relays to be energized. Through this de-icing control module, current can be distributed to the three de-icing units in turn, i.e., the first, second, and third relays conduct in turn and cycle, so that current is output and supplied to the first, second, and third de-icing units accordingly. Similarities will not be repeated.

[0056] Compared to Embodiment 1, the relay also includes a third relay and a fourth relay, and the de-icing unit also includes a third de-icing unit and a fourth de-icing unit. The output terminal of the remote circuit breaker is electrically connected to the third relay, and the output terminal of the remote circuit breaker is electrically connected to the fourth relay. The control terminal of the third relay is connected to the positive power supply via a switch, and the control terminal of the fourth relay is connected to the positive power supply via a switch. Pressing the corresponding switches of the first and second relays causes the first and second relays to operate during a first time period. Pressing the corresponding switches of the third and fourth relays causes the third and fourth relays to operate during a second time period, so that two relays are conducting in different time periods.

[0057] Example 2:

[0058] Example 2 differs from Example 1 in that it also includes a housing, a diode, and a shunt.

[0059] like Figure 3 As shown, the present invention discloses a de-icing control device including a de-icing control module, which is capable of alternately distributing energy to two de-icing units.

[0060] The de-icing control module includes a housing and a controller, drive unit, diode, and shunt fixed inside the housing. The housing is used to shield against interference. The controller includes a remote circuit breaker, and the drive unit is a relay. The remote circuit breaker, relay, diode, and shunt are all located inside the housing. The diode is used to protect the drive unit, and the shunt is used to obtain the working data of the de-icing unit and send it to the de-icing ammeter. The controller is used to control each drive unit to work in turn, and each drive unit is used to control the energy output and supply power to a corresponding de-icing unit.

[0061] The relay includes a first relay and a second relay; the de-icing unit includes a first de-icing unit and a second de-icing unit; the diode includes a first diode and a second diode; the output terminal of the remote circuit breaker is electrically connected to the first relay; the output terminal of the remote circuit breaker is electrically connected to the second relay; the remote circuit breaker is electrically connected to the shunt; the first diode is electrically connected between the first input terminal and the second input terminal of the first relay; and the second diode is electrically connected between the first input terminal and the second input terminal of the second relay.

[0062] The remote circuit breaker, the first relay, the second relay, the first diode, the second diode, and the shunt form the second de-icing control hardware module. The first de-icing control module includes the second de-icing control hardware module, and the first de-icing control module is a combination of hardware units.

[0063] Instructions for use of Example 2:

[0064] like Figure 1 As shown, the de-icing control device, de-icing ammeter 18, de-icing manual mode switch 19, de-icing automatic mode switch 20, de-icing circuit breaker 21, de-icing control circuit breaker 22, de-icing timer 23, first de-icing brush 24 and second de-icing brush 25 of Embodiment 2 are connected to form a de-icing control system.

[0065] like Figure 1 As shown, the de-icing control device includes: a remote circuit breaker 1, a shunt 2, a first relay 3 for controlling the inner de-icing sleeve, a second relay 4 for controlling the outer de-icing sleeve, a first diode 5, a second diode 6, a connector 7, a power terminal 8, a first copper strip 16, and a second copper strip 17.

[0066] like Figure 1 As shown, the propeller de-icing control system also includes: a de-icing ammeter 18, a de-icing manual mode switch 19, a de-icing automatic mode switch 20, a de-icing circuit breaker 21, a de-icing control circuit breaker 22, a de-icing timer 23, a first de-icing brush 24, and a second de-icing brush 25.

[0067] like Figure 1 As shown, the positive terminal of the first power supply is electrically connected to the de-icing ammeter 18, the positive terminal of the first power supply is electrically connected to contact 5 of the automatic de-icing mode switch 20, contact 4 and contact 2 of the automatic de-icing mode switch 20 are electrically connected, contact 1 of the automatic de-icing mode switch 20 is electrically connected to contact 2 of the manual de-icing mode switch 19, contact 3 of the automatic de-icing mode switch 20 is electrically connected to contact 2 of the de-icing timer 23, and contact 6 of the automatic de-icing mode switch 20 is electrically connected to contact 3 of the de-icing timer 23.

[0068] like Figure 1As shown, the positive terminal of the second power supply is electrically connected to the first input terminal of the remote circuit breaker 1. The second input terminal of the remote circuit breaker 1 is grounded via the de-icing circuit breaker 21. The first output terminal of the remote circuit breaker 1 is electrically connected to the de-icing ammeter 18 via the shunt 2. The first output terminal of the remote circuit breaker 1 is electrically connected to the chip select terminal of the first relay 3 via the shunt 2. The first output terminal of the remote circuit breaker 1 is electrically connected to the chip select terminal of the second relay 4 via the shunt 2. The first output terminal of the remote circuit breaker 1 is electrically connected to the contact 5 of the de-icing timer 23 via the shunt 2. The second output terminal of the remote circuit breaker 1 is electrically connected to the first input terminal of the first relay 3. The second output terminal of the remote circuit breaker 1 is electrically connected to the second input terminal of the second relay 4.

[0069] like Figure 1 As shown, contact 3 of the manual de-icing mode switch 19 is electrically connected to the second input terminal of the first relay 3, and contact 1 of the manual de-icing mode switch 19 is electrically connected to the first input terminal of the second relay 4. The first diode 5 is electrically connected between the first and second input terminals of the first relay 3, and the second diode 6 is electrically connected between the first and second input terminals of the second relay 4. The first input terminal of the first relay 3 is grounded, and the second input terminal of the second relay 4 is grounded.

[0070] like Figure 1 As shown, the output terminal of the first relay 3 is electrically connected to the middle contact B of the first de-icing brush 24, the output terminal of the first relay 3 is electrically connected to the middle contact B of the second de-icing brush 25, and the output terminal of the first relay 3 is electrically connected to the input terminal contact 6 of the de-icing timer 23.

[0071] like Figure 1 As shown, the output terminal of the second relay 4 is electrically connected to the outer contact A of the first de-icing brush 24, the output terminal of the second relay 4 is electrically connected to the outer contact A of the second de-icing brush 25, and the output terminal of the second relay 4 is electrically connected to the input terminal contact 4 of the de-icing timer 23.

[0072] The de-icing sleeve includes a first de-icing sleeve and a second de-icing sleeve. The first de-icing sleeve is fixed inside the propeller, and the second de-icing sleeve is fixed outside the propeller. The first de-icing sleeve is connected to a conductive slip ring, and the second de-icing sleeve is also connected to a conductive slip ring.

[0073] For methods of de-icing control, please refer to the working process description below.

[0074] Example 3:

[0075] like Figure 4 As shown, the present invention discloses a de-icing control device including a de-icing control module, which is capable of alternately distributing energy to two de-icing units.

[0076] The de-icing control module includes a controller and a drive unit. The drive unit is a relay, which includes a first relay and a second relay. The de-icing unit includes a first de-icing unit and a second de-icing unit. The controller is a microcontroller. The microcontroller is electrically connected to each relay individually through an adapter unit. The microcontroller is used to control each drive unit to work in turn. Each drive unit is used to control the current output and supply the corresponding de-icing unit to work.

[0077] The microcontroller, the first relay, and the second relay form the third de-icing control hardware module. The first de-icing control module includes the third de-icing control hardware module, and the first de-icing control module is a combination of hardware units.

[0078] The microcontroller, relays, and de-icing unit themselves, as well as the corresponding communication connection technologies, are existing technologies and will not be described in detail here.

[0079] Instructions for use of Example 3:

[0080] The microcontroller runs a second de-icing control module, which is a program module.

[0081] The microcontroller receives the allocation instruction and sends the first working instruction to the first relay. After receiving the first working instruction, the first relay turns on and supplies power to the first de-icing unit. After a first working time delay, the microcontroller sends the first pause instruction to the first relay. After receiving the first pause instruction, the first relay turns off and supplies power to the first de-icing unit. The microcontroller then sends the second working instruction to the second relay. After receiving the second working instruction, the second relay turns on and supplies power to the second de-icing unit. After a second working time delay, the microcontroller sends the second pause instruction to the second relay. After receiving the second pause instruction, the second relay turns off and supplies power to the second de-icing unit.

[0082] Example 4:

[0083] The present invention discloses a de-icing control device. Based on the device of Embodiment 1, it further includes a first de-icing control program module, which is used for a remote circuit breaker to obtain a standby command, the remote circuit breaker to act and allow the first relay and the second relay to be powered on, the first relay to be turned on after receiving power and to supply power to the first de-icing unit, and the second relay to be turned on after receiving power and to supply power to the second de-icing unit.

[0084] The second de-icing control module includes the first de-icing control program module, and the second de-icing control module is a program module.

[0085] The methods and steps of the first de-icing control program module further improve work efficiency.

[0086] Example 5:

[0087] This invention discloses a de-icing control device. Based on the device of Embodiment 3, it further includes a second de-icing control program module, which is used for a microcontroller to obtain an allocation instruction and send a first working instruction to a first relay. After receiving the first working instruction, the first relay is turned on and used to supply power to the first de-icing unit. After a first working time delay, the microcontroller sends a first pause instruction to the first relay. After receiving the first pause instruction, the first relay is turned off and used to de-energize the first de-icing unit. The microcontroller sends a second working instruction to a second relay. After receiving the second working instruction, the second relay is turned on and used to supply power to the second de-icing unit. After a second working time delay, the microcontroller sends a second pause instruction to the second relay. After receiving the second pause instruction, the second relay is turned off and used to de-energize the second de-icing unit.

[0088] The second de-icing control module includes a second de-icing control program module, which is a program module.

[0089] The second de-icing control program module further improves work efficiency through its methods and steps.

[0090] Example 6:

[0091] This invention discloses a de-icing control method, based on the device of Embodiment 1, including a de-icing control step: alternately distributing current to two de-icing units. Specifically, the steps include:

[0092] Steps for connecting and cooperating with control equipment:

[0093] Connect the remote circuit breaker's contact 3 to the ground via de-icing, connect the control terminal of the first relay to the positive power supply via a switch, and connect the control terminal of the second relay to the positive power supply via a switch.

[0094] Both the first and second de-icing units are heaters. The first relay is electrically connected to the first de-icing unit, and the second relay is electrically connected to the second de-icing unit.

[0095] De-icing steps:

[0096] When the de-icing circuit breaker is pressed, it is turned on. The remote circuit breaker receives the standby command, activates, and allows the first and second relays to be energized.

[0097] Pressing the corresponding switch of the first relay will activate the first relay and power it to the first de-icing unit. Pressing the corresponding switch of the second relay will activate the second relay and power it to the second de-icing unit.

[0098] Example 7:

[0099] This invention discloses a de-icing control method, based on the device of Embodiment 2, including a de-icing control step: alternately distributing current to two de-icing units. Specifically, the steps include:

[0100] Steps for connecting and cooperating with control equipment:

[0101] like Figure 1 As shown, the de-icing control device, de-icing ammeter 18, de-icing manual mode switch 19, de-icing automatic mode switch 20, de-icing circuit breaker 21, de-icing control circuit breaker 22, de-icing timer 23, first de-icing brush 24 and second de-icing brush 25 of Embodiment 2 are connected to form a de-icing control system.

[0102] The de-icing process includes both manual and automatic de-icing steps:

[0103] Manual de-icing steps:

[0104] When the de-icing circuit breaker 21 is notified that it has been pressed and is turned on, it generates a standby command and sends it to the remote circuit breaker 1. The remote circuit breaker receives the standby command from the de-icing circuit breaker 21, and the remote circuit breaker operates to allow the first relay 3 and the second relay 4 to be energized.

[0105] When the de-icing control circuit breaker 22 is detected to be pressed and turned on, it generates a start command and sends it to the de-icing ammeter 18 and the de-icing automatic mode switch 20 respectively. The de-icing ammeter 18 and the de-icing automatic mode switch 20 receive the start command and are powered on.

[0106] When the manual de-icing mode switch 19 is detected to be toggled to the first side and power is supplied, a first working command is generated and sent to the first relay 3. After receiving the first working command, the first relay 3 is turned on and used to supply power to the first de-icing unit.

[0107] When the manual de-icing mode switch 19 is detected to be toggled to the second side and power is supplied, a second working command is generated and sent to the second relay 4. After receiving the second working command, the second relay 4 is turned on and used to supply power to the second de-icing unit. At the same time, the first relay 3 is turned off and the first de-icing unit is de-energized.

[0108] Automatic de-icing steps:

[0109] When the automatic de-icing mode switch 20 is detected to be switched to the first side and power is supplied, a first power frequency command is generated and sent to the de-icing timer 23. After receiving the first power frequency command, the de-icing timer 23 controls the first de-icing unit and the second de-icing unit to alternately power on according to the first power frequency. The first power frequency corresponds to the alternation frequency of the rapid alternation mode.

[0110] When the automatic de-icing mode switch 20 is detected to be switched to the second side and power is supplied, a second power frequency command is generated and sent to the de-icing timer 23. After receiving the second power frequency command, the de-icing timer 23 controls the first and second de-icing units to alternately power on according to the second power frequency. The second power frequency corresponds to the alternation frequency of the slow alternation mode.

[0111] Example 8:

[0112] The present invention discloses a de-icing control device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of Embodiment 7.

[0113] Example 9:

[0114] The present invention discloses a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps in Embodiment 9.

[0115] Example 10:

[0116] The present invention discloses an application that includes reducing power consumption per unit time and improving de-icing efficiency by distributing current alternately to one of two de-icing units.

[0117] Compared to Embodiment 10, the application includes distributing current to one of the three de-icing units in turn, namely the first driving unit, the second driving unit, and the third driving unit, which are sequentially and cyclically turned on, so that the current is output and supplied to the first de-icing unit, the second de-icing unit, and the third de-icing unit accordingly, in order to reduce the power consumption per unit time and improve the de-icing efficiency.

[0118] Compared to the above embodiments, the program module can also be a hardware module made using existing logic operation technology to implement the corresponding logic operation steps, communication steps and control steps, thereby realizing the above-mentioned corresponding steps. The logic operation unit is existing technology and will not be described in detail here.

[0119] Compared to the above embodiments, the driving unit can also be a solenoid valve, including a first solenoid valve and a second solenoid valve. The de-icing unit is a unit for pneumatic de-icing, including a first de-icing unit and a second de-icing unit. The output terminal of the microcontroller is electrically connected to the first solenoid valve and the output terminal of the microcontroller is electrically connected to the second solenoid valve. The microcontroller is used to control each driving unit to work in turn. Each driving unit is used to control the airflow output and supply it to a corresponding de-icing unit, that is, to control the alternating output of vacuum state and pressure. The microcontroller, solenoid valve, and pneumatic de-icing unit themselves, as well as the corresponding communication connection technology, are existing technologies and will not be described in detail.

[0120] Compared to the above embodiments, the driving unit can also be a pneumatic valve. The solenoid valve includes a first pneumatic valve and a second pneumatic valve. The de-icing unit is a unit for pneumatic de-icing, including a first de-icing unit and a second de-icing unit. The output terminal of the microcontroller is electrically connected to the first pneumatic valve, and the output terminal of the microcontroller is electrically connected to the second pneumatic valve. The microcontroller is used to control each driving unit to work in turn. Each driving unit is used to control the airflow output and supply it to a corresponding de-icing unit, that is, to control the alternating output of vacuum state and pressure. The microcontroller, pneumatic valve, and pneumatic de-icing unit themselves, as well as the corresponding communication connection technology, are existing technologies and will not be described in detail.

[0121] Project technology development process:

[0122] In the design of general aviation aircraft propeller de-icing systems, each propeller blade has a protective sleeve for an electrically heated element attached to its leading edge. Each sleeve is divided into two heating elements: an inner and an outer one. Therefore, the de-icing mode of the blade is divided into inner and outer modes. Because de-icing consumes a large amount of power, if the power supply for inner and outer de-icing is directly controlled by a circuit breaker, it would not only require laying long-distance, high-current wires, increasing the risk of electromagnetic interference, but also would not effectively control the working time of inner and outer de-icing. Therefore, it is necessary to design a propeller de-icing control box that can control the orderly operation of inner and outer de-icing while protecting the de-icing system.

[0123] Research and development objectives:

[0124] The general aviation aircraft is equipped with a propeller de-icing system. Each propeller blade has a protective sleeve for an electrically heated element attached to its leading edge, approximately one-third the length of the inner blade. Each sleeve is divided into two heating elements: an inner and an outer one. Behind the propeller hub septum is a conductive slip ring with three copper rails. The outer ring powers the outer sleeve, the middle ring powers the inner sleeve, and the inner ring provides a grounding circuit for both sleeves. Power and grounding are supplied to the conductive slip ring via two brushes, one on each side of the front of the engine. These brushes have spring-loaded contacts on the slip ring that transmit power to it.

[0125] Because the de-icing sleeve of the propeller blade consumes a large amount of power, in order to control the inner and outer de-icing sleeves of the propeller blade to work in an orderly manner, protect the de-icing system equipment, reduce the laying of high-current wires, and reduce electromagnetic interference, this research and development project provides a propeller de-icing control box with high reliability and safety and easy maintenance.

[0126] The technical solution developed in this project is as follows: The propeller de-icing control box consists of a housing, terminals and connectors on the housing, copper strips, relays, shunts, diodes and remote control circuit breakers inside the housing.

[0127] The shell is composed of aluminum material and phenolic laminate fabric. The aluminum material has an anti-oxidation coating, and the aluminum shell has a good shielding effect. The phenolic laminate fabric is made of non-conductive insulating material.

[0128] The terminals are metal cylinders with external threads and corresponding nuts. Some terminals are connected by copper strips inside the housing. The terminals and connectors are located on the outside of the phenolic board housing.

[0129] The shunt is used to measure the current when the blade de-icing sleeve is working.

[0130] The two relays are normally open relays, which control the operation of the inner or outer de-icing sleeve on the propeller blades, respectively.

[0131] Two diodes are connected in parallel between the relay coil pins to prevent sudden changes in voltage and current and to provide a path for the relay inductor coil to release reverse current.

[0132] The remote circuit breaker has a rated current of 70A and provides overvoltage protection for the de-icing control box. It is controlled by the de-icing circuit breaker in the cockpit. The de-icing circuit breaker has an operating current of 0.5A, which avoids laying high-current wires in the cockpit.

[0133] Technical solution description:

[0134] like Figure 1 The diagram shows the working principle block diagram of the propeller de-icing control box of this invention connected to the propeller de-icing system of a certain type of aircraft. In the diagram, the propeller de-icing control box includes: 1-remote circuit breaker, 2-shunt, 3-relay 1, 4-relay 2, 5-diode 1, 6-diode 2, 7-connector, 8-Phone terminal POWER, 9-Phone terminal BB 1C, 10-Phone terminal BB 1B, 11-Phone terminal BB 1, 12-Phone terminal BB 3, 13-Phone terminal BB 2, 14-Phone terminal BB 2B, 15-Phone terminal BB 2C, 16-copper strip 1, 17-copper strip 2.

[0135] The propeller de-icing control system also includes: 18-de-icing ammeter, 19-de-icing manual mode switch, 20-de-icing automatic mode switch, 21-de-icing circuit breaker, 22-de-icing control circuit breaker, 23-de-icing timer, 24-de-icing brush 1, 25-de-icing brush 2.

[0136] Among them, 3-relay 1, i.e., the first relay, is responsible for controlling the inner de-icing sleeve; 4-relay 2, i.e., the second relay, is responsible for controlling the outer de-icing sleeve; 5-diode 1, i.e., the first diode; 6-diode 2, i.e., the second diode; 16-copper strip 1, i.e., the first copper strip; 17-copper strip 2, i.e., the second copper strip.

[0137] Among them, 19-De-icing manual mode switch, i.e., selection switch, is a three-position switch with three states: inner, closed, and outer; 20-De-icing automatic mode switch, is a three-position switch with three states: fast, slow, and closed; 21-De-icing circuit breaker, operating current 0.5A; 22-De-icing control circuit breaker, operating current 2A; 24-De-icing brush 1, i.e., the first de-icing brush; 25-De-icing brush 2, i.e., the second de-icing brush.

[0138] Component connection relationship description:

[0139] like Figure 1 The diagram shown is a block diagram illustrating the working principle of the propeller de-icing control box connected to the propeller de-icing system of a certain type of aircraft. In this implementation, the propeller de-icing control box housing is composed of aluminum material and phenolic laminated fabric. Terminals 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, and 7 (connector) are arranged on the phenolic laminated fabric. The terminals are 8mm diameter externally threaded metal cylinders, totaling eight terminals. The copper strips are located inside the housing; copper strip 16 connects terminals 9, 10, and 11, and copper strip 17 connects terminals 13, 14, and 15. The remote circuit breaker, shunt, relay, relays 3 and 4, diode, diode, and connector are readily available off-the-shelf products. Connected by cables, the pilot can control the orderly operation of the inner and outer de-icing sleeves of the propeller blades by controlling the de-icing switch.

[0140] Work process description:

[0141] During normal operation, the pilot activates the 22-de-icing control circuit breaker, connecting pins 1 and 5 of the 18-de-icing ammeter to power, energizing the de-icing ammeter. The pilot then activates the 21-de-icing connection circuit breaker, connecting the 8-terminal POWER of the de-icing control box to the onboard power supply. The 1-remote control circuit breaker is activated by the 21-de-icing connection circuit breaker. Contact 3 within the 1-remote control circuit breaker is grounded, and contacts A1 and A2 are connected. Current flows through the 2-shunt, and the current value during de-icing jacket operation is transmitted via cables from both ends of the shunt to pins 2 and 3 of the 7-connector to the 18-de-icing ammeter. The de-icing ammeter continuously monitors the operating current of the de-icing jacket; the normal operating current should be between 47A and 54A. After passing through the shunt, the current is transmitted via cable to the 12-terminal BB3, which connects to pin 5 of the de-icing timer, powering the de-icing timer. The pilot sets the 19-de-icing manual mode switch to the inner position, i.e., contact 2 connects to contact 3. The pilot sets the 20-de-icing automatic mode switch to the off position, i.e., contact 2 connects to contact 1 and contact 5 connects to contact 4. Through pin 4 of connector 7, the coil contacts X1 and X2 of relay 3, which is responsible for the inner de-icing sleeve in the de-icing control box, are connected. Contact A2 is energized and connected to A1, supplying airborne power to copper bar 16. Terminal 9 BB 1C connects to the middle contact B of de-icing brush 25. Terminal 10 BB 1B connects to the middle contact B of de-icing brush 124. The brush contacts transmit electrical energy from the de-icing control box to the middle slip ring through contact with the middle slip ring, thereby controlling the operation of the inner de-icing sleeve of the propeller blade.

[0142] The pilot sets the 19-de-icing manual mode switch to the outer position, i.e., contact 2 connects to contact 1. The pilot sets the 20-de-icing automatic mode switch to the off position, i.e., contact 2 connects to contact 1, and contact 5 connects to contact 4. Through pin 5 of connector 7, the coil contacts X1 and X2 of relay 4, which is responsible for the outer de-icing sleeve in the de-icing control box, are connected. Contact A2 is energized and connected to A1, supplying airborne power to copper bar 17. Terminal 15 BB 2C connects to the outer contact A of de-icing brush 25. Terminal 14 BB 2B connects to the outer contact A of de-icing brush 14. The brush contacts transmit electrical energy from the de-icing control box to the outer slip ring through contact with the outer slip ring, thereby controlling the operation of the outer de-icing sleeve of the propeller blade.

[0143] The above describes the manual selection of the propeller blade inner or outer de-icing working mode.

[0144] The following is an automatic de-icing mode in which the inner and outer sides of the propeller blades alternate between de-icing.

[0145] The pilot sets the 19-de-icing manual mode switch to the off position, meaning contact 2 is not connected to contact 1 and contact 3. The pilot sets the 20-de-icing automatic mode switch to the fast position, meaning contact 2 is connected to contact 3 and contact 5 is connected to contact 6. This connects pins 2 and 3 of the 23-de-icing timer. After calculation by the de-icing timer, in fast mode, the timer will be responsible for starting the inner de-icing sleeve for 45 seconds. Pin 6 of the timer is connected to terminal 11 BB 1, supplying power to copper bar 16. Copper bar supplies power to terminal 9 BB 1C and terminal 10 BB 1B. Terminal 9 BB 1C is connected to the middle contact B of de-icing brush 25, and terminal 10 BB 1B is connected to the middle contact B of de-icing brush 14. The brush contacts transmit power from the de-icing control box to the middle slip ring through contact with the middle slip ring, thereby controlling the inner de-icing sleeve of the propeller blade to work for 45 seconds. Then, the outer de-icing sleeve restarts for 45 seconds. Pin 4 of the timer connects to terminal BB 2 (13), supplying power to copper bar (17). Copper bar then supplies power to terminals BB 2C (15) and BB 2B (14). Terminal BB 2C (15) connects to the outer contact A of de-icing brush 2 (25), and terminal BB 2B (14) connects to the outer contact A of de-icing brush 1 (24). The brush contacts transmit power from the de-icing control box to the outer slip ring, thus controlling the outer de-icing sleeve of the blade to operate for 45 seconds. Finally, both the inner and outer de-icing sleeves shut down simultaneously for 90 seconds.

[0146] The pilot sets the 19-De-icing Manual Mode switch to the off position, meaning contact 2 is not connected to contact 1 and contact 3. The pilot sets the 20-De-icing Automatic Mode switch to the slow position, meaning contact 2 is connected to contact 3 and contact 5 is connected to contact 4. This connects pin 2 of the 23-De-icing Timer. After calculation by the de-icing timer, in slow mode, the inner de-icing sleeve starts for 90 seconds, and then the outer de-icing sleeve starts for another 90 seconds. The timer switches between the inner and outer de-icing sleeves every 90 seconds.

[0147] Furthermore, the de-icing control box can be adapted to meet the actual needs of the de-icing system, thereby reducing aircraft production costs to a greater extent. This control system can also be modified to suit different propeller models, meeting their usage requirements and demonstrating significant potential for widespread application. This application has already been applied to general aviation aircraft equipped with turboprop engines, achieving positive results.

[0148] The concept of this application:

[0149] In existing technologies, most de-icing control devices employ intermittent energy output to the de-icing unit to achieve de-icing control. For example, patent announcement number CN1012427B, entitled "De-icing Control System," utilizes a simplified device to alternately apply vacuum and pressure to the de-icing unit, allowing these units to operate with minimal compressed air without considering pressure.

[0150] The inventive concept of this application is as follows:

[0151] First, energy is distributed in rotation to a portion of the multiple de-icing units.

[0152] Secondly, it is used to reduce the current per unit time and improve de-icing efficiency.

[0153] The differences are explained below:

[0154] In the prior art, the controller controls the driver to output energy intermittently. The energy is output intermittently, such as pulsed current, vacuum state and pressure, and the output energy can be in the form of voltage, current or air pressure.

[0155] In the technical concept of this application, the energy output is not abrupt, and it is not intermittent. Compared with the existing technical solutions, the energy output of the technical solution of this application is relatively stable or has only slight fluctuations. The output energy is distributed to some of the multiple de-icing units in turn according to the time flow to reduce the current per unit time and improve the de-icing efficiency.

[0156] The energy output is relatively stable, which can be simply understood as a constant current source. Small fluctuations in output power may be due to interference or operational instability. That is, the energy output device in this application may or may not be a constant current source. This differs from the abrupt or significantly different output states in existing technologies.

[0157] The advantages of this application are:

[0158] The two relays in this application's de-icing control box allow for manual switching between the inner and outer de-icing sleeves of the propeller blades. A shunt provides current readings to the de-icing ammeter, continuously monitoring the de-icing system's operational status. A remote circuit breaker provides overvoltage protection for the de-icing control box, controlled by a de-icing circuit breaker in the cockpit, with an operating current of 0.5A. The design of the de-icing control box reduces the laying of high-current wires and electromagnetic interference. Furthermore, it protects the de-icing system, is easy to maintain, and improves the maintainability and reliability of the aircraft propeller de-icing system. The relays, shunts, diodes, remote circuit breakers, and connectors used in the de-icing control box are all mature off-the-shelf products, making procurement convenient. Additionally, the de-icing control box can be adapted and modified to meet specific de-icing needs, thus reducing aircraft production costs to some extent.

Claims

1. A de-icing control device, characterized in that: The system includes a de-icing control module for distributing energy to each de-icing unit in turn. The de-icing control module includes a controller and multiple drive units. The controller controls each drive unit to work in turn, and each drive unit controls the energy output to power a corresponding de-icing unit. The drive units are relays. The controller controls each relay to conduct in turn and to power a corresponding de-icing unit. The drive units include a first relay (3) and a second relay (4). The de-icing units include a first de-icing unit and a second de-icing unit. The first de-icing unit is a first de-icing sleeve, and the second de-icing unit is a second de-icing sleeve. The system consists of two sets: a first de-icing sleeve located inside the propeller and a second de-icing sleeve located outside the propeller. Both de-icing sleeves are powered via conductive slip rings. A first relay (3) controls the inner de-icing sleeve, and a second relay (4) controls the outer de-icing sleeve. The controller includes a remote circuit breaker (1), which is connected to each relay. It also includes a shunt (2), a de-icing ammeter (18), a manual de-icing mode switch (19), an automatic de-icing mode switch (20), a de-icing connection circuit breaker (21), a de-icing control circuit breaker (22), and a de-icing meter. The circuit consists of a timer (23), a first de-icing brush (24), and a second de-icing brush (25). The de-icing circuit breaker (21) is electrically connected to the remote circuit breaker (1). The control terminals of the remote circuit breaker (1) are electrically connected to the control terminals of the first relay (3) and the second relay (4), respectively. The remote circuit breaker (1) is electrically connected to the shunt (2), and the shunt (2) is electrically connected to the first relay (3) and the second relay (4), respectively. The de-icing control circuit breaker (22) is electrically connected to the automatic de-icing mode switch (20) and the de-icing ammeter (18), respectively. The automatic de-icing mode switch (20) is electrically connected to the de-icing control circuit breaker (22) and the de-icing ammeter (18), respectively. The de-icing manual mode switch (19) and the de-icing timer (23) are electrically connected. The de-icing manual mode switch (19) is electrically connected to the control terminal of the first relay (3) and the control terminal of the second relay (4), respectively. The de-icing timer (23) is electrically connected to the first relay (3) and the second relay (4), respectively. The first relay (3) is electrically connected to the first de-icing brush (24) and the second de-icing brush (25), respectively. The second relay (4) is electrically connected to the first de-icing brush (24) and the second de-icing brush (25), respectively. The shunt is used to obtain the working data of the de-icing unit and send it to the de-icing ammeter.

2. The de-icing control device according to claim 1, characterized in that: It also includes a housing, with the drive unit located inside the housing, which is used to shield against interference; it also includes a diode, which is electrically connected to the drive unit and is used to protect the drive unit.

3. A de-icing control method, characterized in that: The de-icing control device according to claim 1 includes a de-icing control step of distributing energy to each de-icing unit in turn.

4. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, it implements the corresponding steps in claim 3.

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