Paddle driving motor for functional boat

Abstract

The invention discloses a paddle driving motor for a functional boat, belongs to the technical field of motors, and solves the problem that when the temperature in the motor is too high, the effect of rapidly reducing the temperature of a heat production part in the motor cannot be achieved by atomizing and spraying cooling liquid through a nozzle within a short time. Comprising a base and an annular cylinder fixedly connected to the base, an annular space exists in the annular cylinder, an inner ring and an outer ring of the annular space are fixedly connected with an inner stator and an outer stator respectively, an inner cooling channel and an outer cooling channel which are communicated with each other are formed in the inner stator and the outer stator respectively, and an inner rotor shaft is rotationally arranged in the annular cylinder; an outer rotor shell located on the outer side of the annular cylinder is fixedly connected to the inner rotor shaft, and a pump body is arranged on the base. By monitoring the temperature of the inner and outer stators and the solution concentration of the heat absorption section, the dissolving amount and liquid amount of sodium sulfate are controlled, rapid heat absorption and cooling are achieved, and high temperature is prevented from damaging magnetic materials.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a blade drive motor for a functional boat. Background Art

[0002] Functional boats are water vehicles designed for specific purposes, and they are usually highly flexible and multifunctional. Depending on their purpose, these boats may be equipped with advanced navigation systems, rescue equipment, communication devices or other professional equipment. For example, search and rescue functional boats can respond quickly in emergencies and perform maritime search and rescue missions; while scientific research functional boats may carry laboratory equipment for marine research and sample collection. In addition, there are functional boats for law enforcement, patrol, diving support or leisure and entertainment. They are designed with practicality and efficiency in mind and can adapt to various marine environments and operational needs. Whether in commercial, military or civilian fields, functional boats play an indispensable role, and their diversity and professionalism make them a powerful assistant for marine operations.

[0003] The main power source for driving the functional boat is the propeller-driven motor. The propeller-driven motor that drives the functional boat to move in the water is an electric propulsion system. It drives the propeller blades to rotate through the motor to generate thrust to push the boat forward, backward or turn.

[0004] This type of motor is usually characterized by high efficiency. The design of the propeller-driven motor takes into account hydrodynamics to optimize thrust and reduce energy consumption. They usually use waterproof sealing technology to ensure the reliability and durability of the motor in a humid environment. Whether used for commercial transportation, tourism or special mission execution, the propeller-driven motor is an indispensable power source for functional boats, providing boats with flexible, stable and efficient water mobility.

[0005] The heat sources of the blade drive motor are the copper loss in the winding and the iron loss in the core, and the high temperature part is mainly concentrated at the end of the winding. In order to solve the heat dissipation problem of the winding under high-speed rotation, the current closed cooling method is to use oil spray cooling to dissipate the heat at the end of the winding. However, the traditional oil spray cooling requires an external pump for heat dissipation outside the motor. The external pump is not only not conducive to the arrangement of parts for functional boats with limited space, but also requires the configuration of corresponding power systems, which consumes more energy overall. As a result, it is not conducive to the long-distance navigation of the boat.

[0006] Therefore, the application number is CN202410404981.X, which is an underwater counter-rotating motor system and underwater equipment with self-cooling function. Its technical points are as follows: it includes a counter-rotating motor, a cooling unit and an electromagnetic clutch; the counter-rotating motor includes a coaxially arranged inner shaft, an outer shaft, an inner rotor assembly and an outer rotor assembly; the inner rotor assembly outputs torque outwardly through the inner shaft, and the outer rotor assembly outputs torque in the opposite direction to the inner shaft outwardly through the outer shaft; the cooling unit includes a passive pump, an infusion pipeline, a cooling channel coaxially arranged in the inner shaft, a nozzle arranged on the inner shaft and connected to the cooling channel, a guide groove arranged on the inner rotor assembly and the outer rotor assembly, a liquid tank arranged at the bottom of the motor compartment shell of the underwater equipment, and a liquid tank filled in the liquid tank. The passive pump is installed at the end of the inner shaft away from the outer shaft through an electromagnetic clutch, and its stator is fixed to the motor compartment housing of the underwater equipment, and the rotor is connected to the inner shaft through an electromagnetic clutch; during low-speed cruising, the electromagnetic clutch is disconnected, the passive pump is disengaged from the inner shaft, and the passive pump does not rotate with the inner shaft; during high-speed striking, the electromagnetic clutch is engaged, the passive pump is dynamically engaged with the inner shaft, and the passive pump rotates with the inner shaft; driven by the rotation of the inner shaft, the passive pump pumps the coolant in the liquid tank into the cooling channel of the inner shaft through the infusion pipeline to cool the rotating inner shaft, and sprays the coolant onto the inner rotor assembly and the outer rotor assembly through the nozzle for cooling, and then the coolant flows back to the liquid tank under the action of the guide groove and its own gravity, and the cooling cycle is repeated.

[0007] The above scheme adopts the "passive pump + closed cooling" method, and controls the power engagement relationship between the passive pump and the inner shaft through an electromagnetic clutch, so that it can perform adaptive cooling according to the speed of the underwater equipment. When no heat dissipation measures are needed during low-speed cruising, the electromagnetic clutch is disconnected, the cooling function is turned off, energy consumption is reduced, and a longer range of underwater equipment is ensured; when high-speed strikes require urgent heat dissipation, the electromagnetic clutch is engaged, so that the rotor of the passive pump is dynamically engaged with the inner shaft, and can rotate with the rotation of the inner shaft to start the cooling unit. The faster the inner shaft rotates, the faster the entire coolant circulation process is, and more heat can be taken away.

[0008] However, the essence of the above scheme is to use the kinetic energy generated by the motor itself to drive the pump body to guide the coolant. The coolant will be sprayed onto the heat-generating components through the nozzle atomization, and direct heat exchange will be carried out in the process. The coolant that absorbs heat will be re-gathered under the action of gravity and circulated under the guidance of the pump body. During the circulation process, heat exchange and cooling are carried out with seawater. According to the cooling method of the coolant, it can be known that the cooling method of the coolant is similar to that of water. The above method requires that there is a relatively obvious temperature difference between the temperature of the coolant and the heat-generating components, and when the coolant contacts and cools the heat-generating components, it can only be used as heat exchange, and the cooling speed is relatively slow. When the temperature in the motor is too high, the spraying of coolant through the nozzle atomization in a short period of time cannot achieve the effect of quickly reducing the temperature of the heat-generating components in the motor, and the continuous high temperature will cause demagnetization problems in the windings, permanent magnets and other structures.

[0009] Therefore, a functional boat blade drive motor is proposed to solve or alleviate the above problems. Summary of the invention

[0010] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a functional boat blade drive motor.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions: A functional boat blade drive motor comprises a base, an annular cylinder fixedly connected to the base, an annular space is present in the annular cylinder, an inner ring and an outer ring of the annular space are respectively fixedly connected with an inner stator and an outer stator, an inner cooling channel and an outer cooling channel are respectively provided in the inner stator and the outer stator, an inner rotor shaft is rotatably provided in the annular cylinder, an outer rotor shell located outside the annular cylinder is fixedly connected to the inner rotor shaft, a pump body is provided on the base, the pump body is connected with pipelines connected with the inner cooling channel and the outer cooling channel, and part of the pipelines is arranged outside, the inner cooling channel, the outer cooling channel and the pipelines form a circulation flow channel, the inner cooling channel and the outer cooling channel form a heat absorption section in the circulation flow channel, the pipelines form a heat exchange section, the heat absorption section is always provided with a sodium sulfate solution, the heat exchange section is provided with water, and the volume and dissolution amount of the sodium sulfate solution in the heat absorption section are adjusted and set according to the temperature of the outer stator and the inner stator.

[0012] Preferably, the circulation channel is divided into a heat absorption section and a heat exchange section by two groups of semi-permeable membranes, and the distance between the two groups of semi-permeable membranes is adjustable to achieve changes in the volume and dissolution amount of the sodium sulfate solution in the heat absorption section.

[0013] Preferably, two groups of membrane distance adjustment components are arranged in the circulation flow channel, and the membrane distance adjustment components include two groups of annular blocking plates fixedly connected in the pipeline, a connecting tube fixedly connected between the two groups of blocking plates, an adjustment electromagnet fixedly connected to the outer ring of the connecting tube, a stainless steel disk slidably connected in the pipeline, and a plurality of semi-permeable membranes, a spring coil is fixedly connected between the blocking plate and the stainless steel disk, the adjustment electromagnet can be turned on and off, a plurality of through holes distributed in an annular array are opened on the end surface of the stainless steel disk, the semi-permeable membrane is detachably connected in the through hole, and the opening projection area of ​​the connecting tube is smaller than the projection area of ​​the common inscribed circle of the plurality of through holes on the stainless steel disk.

[0014] Preferably, a single through hole is embedded with an embedded cylinder clamped on both sides of the semi-permeable membrane, the inner circle of one end of the embedded cylinder facing the semi-permeable membrane is fixedly connected with a retaining ring flush with the end surface of the embedded cylinder, and the inner circle of the embedded cylinder is provided with a groove that spreads outward, and the groove is in the shape of a sheet.

[0015] Preferably, it also includes a main control system, which controls and adjusts the start and stop of the electromagnet and the pump body according to the temperature of the inner stator and the outer stator, and the concentration of the sodium sulfate solution in the heat absorption section.

[0016] Preferably, the main control system includes A temperature collection unit is arranged in the annular cylinder, and the temperature collection unit collects the temperature of the inner stator and the outer stator and feeds back the temperature signal; A concentration acquisition unit, whose probe is arranged in the pipeline and located in the heat absorption section, and the concentration acquisition unit acquires the concentration of the sodium sulfate solution in the heat absorption section and feeds back a concentration signal; A signal filtering unit, wherein the input end of the signal filtering unit is coupled to the output end of the temperature acquisition unit and the concentration acquisition unit respectively, and the signal filtering unit receives and sequentially filters, linearizes, amplifies, and filters the temperature signal and the concentration signal before outputting the signals; A multiple comparison unit, wherein the input end of the multiple comparison unit is coupled to the output end of the signal filtering unit, the multiple comparison unit only receives the processed temperature signal and compares it with a plurality of preset temperature reference signals therein and outputs a corresponding comparison signal; A signal processing unit, wherein an input end of the signal processing unit is coupled to output ends of the multiple comparison unit and the signal filtering unit, and the signal processing unit receives the comparison signal and the processed concentration signal and outputs a control signal; An execution unit, wherein the input end of the execution unit is coupled to the output end of the signal processing unit, the output end of the execution unit is connected to the regulating electromagnet and the pump body, and the execution unit responds to the corresponding control signal and controls the start and stop of the regulating electromagnet and the pump body; The logic register unit is coupled to the signal processing unit, and is used to store a control signal corresponding to the driving control logic.

[0017] Preferably, the temperature acquisition unit includes a thermistor, the concentration acquisition unit includes an ion sensor, the signal filtering unit includes a first voltage comparator, a resistance bridge, a first operational amplifier, a second operational amplifier, a filter resistor and a filter capacitor, the multiple comparison unit includes a lower limit comparator circuit, an upper limit comparison circuit, and a double limit comparison circuit in parallel, the signal processing unit includes an AD converter and an STM32F103RCT6 embedded-microcontroller connected thereto, the logic register unit includes a register, and the execution unit includes a first digital potentiometer connected in series with the adjusting electromagnet and a TB67S109AFTG motor driver chip connected to the pump body.

[0018] Preferably, the inner ring of the outer rotor shell is fixedly connected to a circle of the outer rotor inner shell, and an annular counterweight ring sleeve is fixedly connected between the outer rotor inner shell and the outer rotor shell.

[0019] Preferably, it also includes a rotation component, one end of the inner rotor shaft passes through the annular cylinder and the base to the outside, and the rotation component is fixedly connected to the base and is transmission-connected to the one end of the inner rotor shaft that passes through, the rotation component is used to be fixedly installed on the functional boat, and the signal processing unit is coupled to the rotation component, and a power supply circuit is connected between the signal processing unit and the inner stator and the outer stator, the rotation component exists in an interference state and a non-interference state, when the rotation component is in the non-interference state, the base and the rotation component are stationary, when the rotation component is in the interference state, the inner rotor shaft is stationary and the base is rotationally set.

[0020] Preferably, the self-rotating component includes a connecting cylinder seat fixedly connected to the base, a connecting cover detachably connected to the connecting cylinder seat, a mounting ring plate that divides the connecting cylinder seat and the connecting cover into a front connecting chamber and a rear connecting chamber, a connecting bearing fixedly connected to the rear connecting chamber, a connecting shaft fixedly connected to the inner ring of the connecting bearing and passing through the mounting ring plate to the front connecting chamber, a transmission electromagnet fixedly connected to the rear connecting chamber and located at the outer ring of the connecting shaft, a baffle fixedly connected to the side of the transmission electromagnet away from the connecting bearing, a friction plate fixedly connected to the connecting shaft and passing through one end of the baffle plate, a fixed shaft passing through the connecting cover, a brake plate fixedly connected to one end of the fixed shaft and located in the connecting cover, and a metal spring arranged between the brake plate and the friction plate, the connecting shaft located in the front connecting chamber is transmission-connected to the inner rotor shaft through a coupling sleeve, the transmission electromagnet is coupled to the signal processing unit through a second digital potentiometer, the power supply circuit includes a relay and a power supply connected in series with the transmission electromagnet, and the controlled end of the relay is coupled to the signal processing unit.

[0021] The present invention has the following beneficial effects: The present invention can control the amount of sodium sulfate dissolved and the amount of liquid in the heat absorption section according to the temperature of the outer stator and the inner stator and the concentration of the solution in the heat absorption section, and then control the dissolution and heat absorption action of the sodium sulfate and the action of crystallization after cooling. By repeatedly controlling the dissolution of sodium sulfate, when the temperature of the inner stator and the outer stator is too high, rapid and large-scale heat absorption can be achieved through the dissolution of the sodium sulfate, so as to reduce the temperature and prevent the coil winding, the permanent magnet and other structures from losing magnetism due to continuous high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 It is a structural block diagram of the circulation flow channel in the present invention; Figure 4 It is a structural schematic diagram of the membrane distance adjustment component in the present invention; Figure 5 for Figure 4 The enlarged view of point B in the middle; Figure 6 It is a structural block diagram of the main control system in the present invention; Figure 7 This is a wiring diagram of the temperature acquisition unit, signal filtering unit, and multiple comparison unit in the present invention.

[0024] 1. Base; 2. Annular cylinder; 3. Inner stator; 4. Inner cooling channel; 5. Outer stator; 6. Outer cooling channel; 7. Install bearing; 8. Inner rotor shaft; 9. Outer rotor inner shell; 10. Outer rotor outer shell; 11. Counterweight ring sleeve; 12. Connecting cylinder seat; 13. Installing ring plate; 14. Connecting bearing; 15. Connecting shaft; 16. Coupling sleeve; 17. Connecting cover; 18. Transmission electromagnet; 19. Blocking plate; 20. Friction plate; 21. Spring; 22. Brake plate; 23. Fixed shaft; 24. Blocking plate; 25. Connecting cylinder; 26. Adjusting electromagnet; 27. Stainless steel plate; 28. Through hole; 29. ​​Embedded cylinder; 30. Thrust ring; 31. Groove; 32. Semi-permeable membrane; 33. Temperature acquisition unit; 34. Concentration acquisition unit; 35. Signal filtering unit; 36. Multiple comparison unit; 37. Signal processing unit; 38. Logic register unit; 39. Execution unit. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the invention is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] A functional boat propeller drive motor, such as Figure 1 As shown, it includes a base 1 and an annular cylinder 2 fixedly connected to the base 1, an annular space exists in the annular cylinder 2, the inner ring and outer ring of the annular space are respectively fixedly connected with the inner stator 3 and the outer stator 5, the inner stator 3 and the outer stator 5 are respectively provided with an inner cooling channel 4 and an outer cooling channel 6 which are connected, an inner rotor shaft 8 is rotatably arranged on the annular cylinder 2, an outer rotor shell 10 located outside the annular cylinder 2 is fixedly connected to the inner rotor shaft 8, a pump body is arranged on the base 1, the pump body is connected with a pipeline connected with the inner cooling channel 4 and the outer cooling channel 6, and part of the pipeline is arranged outside, the inner cooling channel 4, the outer cooling channel 6, and the pipeline form a circulation channel, the inner cooling channel 4 and the outer cooling channel 6 form a heat absorption section in the circulation channel, the pipeline forms a heat exchange section, the heat absorption section is always set with sodium sulfate solution, the heat exchange section is set with water, the volume and dissolution amount of the sodium sulfate solution in the heat absorption section are adjusted according to the temperature of the outer stator 5 and the inner stator 3.

[0032] When the motor needs to be driven, the inner stator 3 and the outer stator 5 can be energized, so that the inner rotor shaft 8 and the outer rotor housing 10 cut the magnetic flux lines and rotate together. The dual-axis rotation allows the motor to withstand a larger load and provide a larger torque.

[0033] The arrangement of the annular cylinder 2 enables the inner stator 3 and the outer stator 5 to be arranged in the same space, and the stator is arranged separately, which can avoid the stator from contacting the external environment, and avoid damage, leakage and other problems caused by the stator being affected by the water environment. In addition, since the inner stator 3 and the outer stator 5 are arranged in the same annular space, it is also convenient for the inner cooling channel 4 and the outer cooling channel 6 to be connected, which can reduce the difficulty of pipe laying. The temperature hazard level of the inner stator 3 and the outer stator 5 can be divided into three levels, the first level is the low temperature level, the second level is the medium temperature level, and the third level is the high temperature level.

[0034] At low temperature, the volume of the sodium sulfate solution in the heat absorption section remains unchanged, and the temperature is reduced only by the circulation of water. The water will take away the heat generated by the inner stator 3 and the outer stator 5 through heat exchange.

[0035] When the temperature is medium, the volume of the sodium sulfate solution in the heat absorption section increases, and the sodium sulfate crystals precipitated in the heat absorption section dissolve in water. When the sodium sulfate crystals dissolve in water, they absorb the heat of the inner stator 3 and the outer stator 5 at the location of the heat absorption section. After the temperature reaches a new equilibrium, the volume of the sodium sulfate solution in the heat absorption section is maintained. When the circulating water lowers the temperature of the sodium sulfate solution in the heat absorption section to the normal water temperature, the volume of the sodium sulfate solution in the heat absorption section is reduced to the initial state, and the originally dissolved sodium sulfate crystals are precipitated again and retained in the heat absorption section.

[0036] When it is at a high temperature level, the volume of the sodium sulfate solution in the heat absorption section reaches the maximum state, and the sodium sulfate crystals precipitated in the heat absorption section are all dissolved in water. When the sodium sulfate crystals are dissolved in water, they absorb the heat of the inner stator 3 and the outer stator 5 at the heat absorption section. After the temperature reaches the first equilibrium, the maximum volume of the sodium sulfate solution in the heat absorption section continues to be maintained. When the circulating water drops the temperature of the sodium sulfate solution in the heat absorption section to the medium temperature level, the volume of the sodium sulfate solution in the heat absorption section is reduced and then expanded to the maximum state again. The sodium sulfate crystals precipitated temporarily due to the temperature drop are dissolved again to absorb heat, and the above steps are repeated until the circulating water drops the temperature of the sodium sulfate solution in the heat absorption section to the normal water temperature, the volume of the sodium sulfate solution in the heat absorption section is reduced to the initial state, and the originally dissolved sodium sulfate crystals are precipitated again and retained in the heat absorption section.

[0037] Therefore, the present invention can adjust the amount of sodium sulfate dissolved and the amount of liquid by detecting the temperature of the inner and outer stators 5 and the concentration of the solution in the heat absorption section. This process controls the heat absorption of sodium sulfate dissolution and the crystallization after cooling, forming a closed-loop control. When the temperature of the inner and outer stators 5 rises, the system automatically increases the amount of sodium sulfate dissolved, realizes rapid and large-scale heat absorption, effectively reduces the temperature, and prevents the coil winding and the permanent magnet from being demagnetized due to high temperature.

[0038] Preferably, if Figure 3 As shown, the circulation channel is divided into a heat absorption section and a heat exchange section through two groups of semi-permeable membranes 32. The distance between the two groups of semi-permeable membranes 32 is adjustable to achieve changes in the volume and dissolution amount of the sodium sulfate solution in the heat absorption section.

[0039] The setting of the semi-permeable membrane 32 allows only water molecules to pass through the heat absorption section, and sodium sulfate will be retained in the heat absorption section to repeatedly precipitate and dissolve, thereby absorbing heat. At the same time, by adjusting the distance between the semi-permeable membranes 32, the volume of the heat absorption section between the two can be changed, and the volume and dissolution amount of the sodium sulfate solution can be adjusted accordingly.

[0040] Preferably, if Figure 4 As shown, two groups of membrane distance adjustment components are arranged in the circulation flow channel, and the membrane distance adjustment components include two groups of annular blocking plates 24 fixedly connected in the pipeline, a connecting tube 25 fixedly connected between the two groups of blocking plates 24, an adjustment electromagnet 26 fixedly connected to the outer ring of the connecting tube 25, a stainless steel plate 27 slidably connected in the pipeline, and a plurality of semi-permeable membranes 32. A spring coil is fixedly connected between the blocking plates 24 and the stainless steel plate 27. The adjustment electromagnet 26 can be set to be powered on and off. A plurality of through holes 28 distributed in an annular array are opened on the end surface of the stainless steel plate 27. The semi-permeable membrane 32 is detachably connected in the through hole 28, and the opening projection area of ​​the connecting tube 25 is smaller than the projection area of ​​the common inscribed circle of the plurality of through holes 28 on the stainless steel plate 27.

[0041] When the membrane distance adjustment component needs to adjust the distance between the semi-permeable membranes 32 on both sides, it only needs to control the on and off of the adjusting electromagnet 26 to control whether the adjusting electromagnet 26 will generate magnetic force on the spring coil, so that the spring coil will be compressed, and whether the stainless steel plate 27 will be displaced toward the blocking piece 24. When the adjusting electromagnet 26 is energized, the stainless steel plate 27 is tightly fitted with the blocking piece 24, and the through hole 28 is blocked by the blocking piece 24, so that the semi-permeable membrane 32 at the through hole 28 is impermeable to water. On the contrary, when the adjusting electromagnet 26 is de-energized, the spring coil will push the stainless steel plate 27 away from the blocking piece 24, so that water can flow through the through hole 28, the semi-permeable membrane 32, and the connecting tube 25.

[0042] Preferably, if Figure 5 As shown, a single through hole 28 is embedded with an embedded cylinder 29 clamped on both sides of a semi-permeable membrane 32, and an inner circle of one end of the embedded cylinder 29 facing the semi-permeable membrane 32 is fixedly connected with a retaining ring 30 flush with the end surface of the embedded cylinder 29, and the inner circle of the embedded cylinder 29 is provided with an outwardly diffused groove 31, and the groove 31 is in the shape of a sheet.

[0043] When the semi-permeable membrane 32 needs to be replaced, the user only needs to insert a tool into the groove 31, and use the groove 31 as a force point to pull the embedded cylinder 29 out of the through hole 28. In this way, the semi-permeable membrane 32 is no longer clamped by the embedded cylinder 29 on both sides. After replacing the new semi-permeable membrane 32, the embedded cylinder 29 is embedded into the through hole 28 again, and the semi-permeable membrane 32 is clamped together by one end of the embedded cylinder 29 and the retaining ring 30, thereby completing the installation.

[0044] Preferably, a main control system is also included, which controls and adjusts the electromagnet 26 and the start and stop of the pump body according to the temperature of the inner stator 3 and the outer stator 5 and the concentration of the sodium sulfate solution in the heat absorption section.

[0045] Preferably, if Figure 6As shown, the main control system includes a temperature acquisition unit 33, a concentration acquisition unit 34, a signal filtering unit 35, a multiple comparison unit 36, a signal processing unit 37, an execution unit 39, and a logic storage unit 38.

[0046] The temperature acquisition unit 33 is arranged in the annular cylinder 2, and the temperature acquisition unit 33 acquires the temperature of the inner stator 3 and the outer stator 5 and feeds back the temperature signal; the probe of the concentration acquisition unit 34 is arranged in the pipeline and is located in the heat absorption section, and the concentration acquisition unit 34 acquires the concentration of the sodium sulfate solution in the heat absorption section and feeds back the concentration signal; the input end of the signal filtering unit 35 is coupled with the output end of the temperature acquisition unit 33 and the concentration acquisition unit 34 respectively, and the signal filtering unit 35 receives and filters, linearizes, amplifies, and filters the temperature signal and the concentration signal in sequence and then outputs them; the input end of the multiple comparison unit 36 ​​is coupled with the output end of the signal filtering unit 35, and the multiple comparison unit 36 ​​only receives the processed temperature signal and the concentration signal. The signal is compared with a plurality of temperature reference signals preset therein and a corresponding comparison signal is output; the input end of the signal processing unit 37 is coupled with the output ends of the multiple comparison unit 36 ​​and the signal filtering unit 35, and the signal processing unit 37 receives the comparison signal and the processed concentration signal and outputs a control signal; the input end of the execution unit 39 is coupled with the output end of the signal processing unit 37, and the output end of the execution unit 39 is connected with the regulating electromagnet 26 and the pump body, and the execution unit 39 responds to the corresponding control signal and controls the regulating electromagnet 26 and the pump body to start and stop; the logic register unit 38 is coupled with the signal processing unit 37, and the logic register unit 38 is used to store the control signal corresponding to the drive control logic.

[0047] Preferably, if Figure 7 As shown, the temperature acquisition unit 33 includes a thermistor, the concentration acquisition unit 34 includes an ion sensor, the signal filtering unit 35 includes a first voltage comparator, a resistance bridge, a first operational amplifier, a second operational amplifier, a filter resistor and a filter capacitor, the multiple comparison unit 36 ​​includes a lower limit comparator circuit, an upper limit comparison circuit and a double limit comparison circuit in parallel, the signal processing unit 37 includes an AD converter and an STM32F103RCT6 embedded-microcontroller connected thereto, the logic register unit 38 includes a register, and the execution unit 39 includes a first digital potentiometer connected in series with the regulating electromagnet 26 and a TB67S109AFTG motor driver chip connected to the pump body.

[0048] The specific wiring structure of the temperature acquisition circuit, the signal filtering unit 35 and the multiple comparison unit 36 ​​is described as an example: One end of the thermistor Rt is connected to an electrical setting, and the other end thereof is connected to a resistor R1 and then grounded. The negative electrode and the positive electrode of the first voltage comparator IC1 are both connected between the thermistor Rt and the resistor R1. The negative electrode of the first voltage comparator IC1 is connected to a resistor R2 and then connected to electricity. The output end of the first voltage comparator IC1 is connected to the base of a transistor switch VT1. The collector of the transistor switch VT1 is connected to electricity, and the emitter thereof is connected between the resistor R2 and the negative electrode of the first voltage comparator IC1. The output end of the first voltage comparator IC1 is connected to the resistor bridge. The A end of the resistance bridge is connected to the negative electrode of the first operational amplifier IC2, the positive electrode of the first operational amplifier IC2 is grounded, the B end of the resistance bridge is connected to the resistor 15 Rx and then connected to the positive electrode of the second operational amplifier IC3, the output end of the first operational amplifier IC2 is connected to the last end of the resistance bridge, the negative electrode of the second operational amplifier IC3 is connected to a resistor 15 Rx and then grounded, the output end of the second operational amplifier IC3 is connected to a resistor 7 R7 and then connected to a capacitor C1 and then grounded, the lower limit comparator circuit includes a second voltage comparator IC4, a double limit comparator circuit The circuit includes a third voltage comparator IC5 and a fourth voltage comparator IC6, the upper limit comparison circuit includes a fifth voltage comparator IC7, the negative electrode of the second voltage comparator IC4 is connected between the capacitor C1 and the resistor R7, the positive electrode of the second voltage comparator IC4 is connected to a resistor R8 and then connected to the power supply, the positive electrode of the third voltage comparator IC5 is connected to a resistor R10 and then connected to the power supply, the negative electrode of the fourth voltage comparator IC6 is connected to a resistor R11 and then connected to the power supply, and the negative electrode of the third voltage comparator IC5 and the positive electrode of the fourth voltage comparator IC6 are both connected to To between the capacitor C1 and the resistor R7, the positive electrode of the fifth voltage comparator IC7 is connected between the capacitor C1 and the resistor R7, the negative electrode of the fifth voltage comparator IC7 is connected to the resistor R13 and then connected to the electrical setting, and the output end of the fifth voltage comparator IC7 is connected to the base of a transistor switch VT2, the collector of the transistor switch VT2 is connected to a normally closed relay and then connected to the electrical setting, the emitter of the transistor switch VT2 is grounded, and the output ends of the third voltage comparator IC5 and the fourth voltage comparator IC6 are commonly connected to a relay normally closed switch.

[0049] Through the above circuit, the weak signal changes generated by the temperature acquisition unit 33 can be filtered to ensure that subsequent processing can only be performed after the temperature signal reaches the threshold value of the first voltage comparator IC1, thereby reducing the occurrence of false touches. The setting of the resistance bridge, the first operational amplifier IC2, and the second operational amplifier IC3 is to amplify the signal to reduce accuracy problems, and it is also convenient for subsequent comparisons. Resistor R7 and capacitor C1 form a low-pass filter circuit to remove high-frequency redundant signals to ensure the accuracy of the signal. The lower limit comparator circuit, the upper limit comparison circuit, and the dual limit comparison circuit correspond to the low temperature level, the high temperature level, and the medium temperature level, respectively, to ensure that the final output of the signal is accurate, and a circuit is set for each level for judgment to avoid misjudgment.

[0050] Preferably, if Figure 1 As shown, the inner ring of the outer rotor housing 10 is fixedly connected to a circle of the outer rotor inner housing 9, and an annular balancing weight ring sleeve 11 is fixedly connected between the outer rotor inner housing 9 and the outer rotor housing 10.

[0051] By arranging the outer rotor inner shell 9 and the counterweight sleeve, the motor can rotate more stably when driving the blades to rotate, and is less likely to shake.

[0052] Preferably, it also includes a rotation component, one end of the inner rotor shaft 8 passes through the annular cylinder 2 and the base 1 to the outside, and the rotation component is fixedly connected to the base 1 and is transmission-connected to the one end of the inner rotor shaft 8 that passes through, the rotation component is used to be fixedly installed on the functional boat, and the signal processing unit 37 is coupled to the rotation component, and a power supply circuit is connected between the signal processing unit 37 and the inner stator 3 and the outer stator 5. The rotation component exists in an interference state and a non-interference state. When the rotation component is in the non-interference state, the base 1 and the rotation component are stationary. When the rotation component is in the interference state, the inner rotor shaft 8 is stationary and the base 1 is rotationally set.

[0053] like Figure 2As shown, the self-rotating assembly includes a connecting cylinder seat 12 fixedly connected to the base 1, a connecting cover 17 detachably connected to the connecting cylinder seat 12, a mounting ring sheet 13 that divides the connecting cylinder seat 12 and the connecting cover 17 into a front connecting cavity and a rear connecting cavity, a connecting bearing 14 fixedly connected to the rear connecting cavity, a connecting shaft 15 fixedly connected to the inner ring of the connecting bearing 14 and penetrating the mounting ring sheet 13 to the front connecting cavity, a transmission electromagnet 18 fixedly connected to the rear connecting cavity and located at the outer ring of the connecting shaft 15, a baffle 19 fixedly connected to the transmission electromagnet 18 away from the connecting bearing 14, and a fixing connecting shaft 15. The connecting shaft 15 passes through the friction plate 20 at one end of the baffle 19, the fixed shaft 23 passes through the connecting cover 17, the brake plate 22 fixedly connected to one end of the fixed shaft 23 and located in the connecting cover 17, and the metal spring 21 arranged between the brake plate 22 and the friction plate 20. The connecting shaft 15 located in the front connecting cavity is transmission-connected to the inner rotor shaft 8 through the coupling sleeve 16, the transmission electromagnet 18 is coupled to the signal processing unit 37 through the second digital potentiometer, and the power supply circuit includes a relay and a power supply connected in series with the transmission electromagnet 18, and the controlled end of the relay is coupled to the signal processing unit 37.

[0054] When the self-rotating component needs to be in an interference state, the transmission electromagnet 18 is energized to generate magnetic force, so that the metal spring 21 can collapse and pull the brake pad 22 to contact the friction plate 20. At this time, the pressure between the two is relatively large, and the friction coefficient of the two is not small, so the static friction between the two is greater at this time, that is, the inner rotor shaft 8 needs to rotate, and the connecting shaft 15 and the fixed shaft 23 must be driven to rotate, and the fixed shaft 23 is fixed. At this time, only the inner stator 3, the outer stator 5, the annular cylinder 2, and the base 1 can rotate. At this time, in this process, the power supply to the inner stator 3, the outer stator 5, the transmission electromagnet 18, and the adjustment electromagnet 26 can be supplied by the cooperation of the brush and the commutator.

[0055] When the rotating assembly rotates, the control processing unit controls the speed of the motor to decrease. The purpose of rotating the inner stator 3 and the outer stator 5 is to make the sodium sulfate crystals adhere to the inner walls of the inner cooling channel 4 and the outer cooling channel 6 relatively evenly when they precipitate, so that when the sodium sulfate dissolves and absorbs heat, the inner walls of the inner cooling channel 4 and the outer cooling channel 6 can absorb heat relatively evenly.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A propeller drive motor for a functional boat, characterized in that: The invention comprises a base (1), an annular cylinder (2) fixedly connected to the base (1), an annular space existing in the annular cylinder (2), an inner ring and an outer ring of the annular space being fixedly connected to an inner stator (3) and an outer stator (5) respectively, an inner cooling channel (4) and an outer cooling channel (6) being connected and arranged in communication with each other in the inner stator (3) and the outer stator (5), an inner rotor shaft (8) being rotatably arranged in the annular cylinder (2), an outer rotor housing (10) located outside the annular cylinder (2) being fixedly connected to the inner rotor shaft (8), and a A pump body is provided, the pump body is connected to a pipeline connected to an inner cooling channel (4) and an outer cooling channel (6), and part of the pipeline is arranged outside, the inner cooling channel (4), the outer cooling channel (6), and the pipeline form a circulation channel, the inner cooling channel (4) and the outer cooling channel (6) form a heat absorption section in the circulation channel, the pipeline forms a heat exchange section, the heat absorption section is always set with a sodium sulfate solution, the heat exchange section is set with water, and the volume and dissolution amount of the sodium sulfate solution in the heat absorption section are adjusted and set according to the temperature of the outer stator (5) and the inner stator (3).

2. A functional boat blade drive motor according to claim 1, characterized in that: The circulation channel is divided into a heat absorption section and a heat exchange section by two groups of semi-permeable membranes (32). The distance between the two groups of semi-permeable membranes (32) is adjustable, and the distance between the two groups of semi-permeable membranes (32) is adjustable to achieve changes in the volume and dissolution amount of the sodium sulfate solution in the heat absorption section.

3. A propeller drive motor for a functional boat according to claim 2, characterized in that: Two groups of membrane distance adjustment components are arranged in the circulation flow channel, and the membrane distance adjustment components include two groups of annular blocking sheets (24) fixedly connected in the pipeline, a connecting tube (25) fixedly connected between the two groups of blocking sheets (24), an adjustment electromagnet (26) fixedly connected to the outer ring of the connecting tube (25), a stainless steel plate (27) slidably connected in the pipeline, and a plurality of semi-permeable membranes (32). A spring ring is fixedly connected between the blocking sheet (24) and the stainless steel plate (27). The adjustment electromagnet (26) can be turned on and off. The end surface of the stainless steel plate (27) is provided with a plurality of through holes (28) distributed in an annular array. The semi-permeable membrane (32) can be detachably connected in the through hole (28), and the opening projection area of ​​the connecting tube (25) is smaller than the projection area of ​​the common inscribed circle of the plurality of through holes (28) on the stainless steel plate (27).

4. The functional boat blade drive motor according to claim 3, characterized in that: A single through hole (28) is embedded with an embedded cylinder (29) clamped on both sides of the semi-permeable membrane (32); an inner ring of one end of the embedded cylinder (29) facing the semi-permeable membrane (32) is fixedly connected to a retaining ring (30) flush with the end surface of the embedded cylinder (29); the inner ring of the embedded cylinder (29) is provided with a groove (31) that spreads outwards; the groove (31) is in the shape of a sheet.

5. The blade drive motor for a functional boat according to claim 3, characterized in that: It also includes a main control system, which controls and adjusts the electromagnet (26) and the start and stop of the pump body according to the temperature of the inner stator (3) and the outer stator (5) and the concentration of the sodium sulfate solution in the heat absorption section.

6. The blade drive motor for a functional boat according to claim 5, characterized in that: The main control system includes A temperature collection unit (33) is arranged in the annular cylinder (2), wherein the temperature collection unit (33) collects the temperatures of the inner stator (3) and the outer stator (5) and feeds back temperature signals; A concentration collection unit (34), a probe of which is arranged in the pipeline and located in the heat absorption section, wherein the concentration collection unit (34) collects the concentration of the sodium sulfate solution in the heat absorption section and feeds back a concentration signal; A signal filtering unit (35), wherein the input end of the signal filtering unit (35) is respectively coupled to the output ends of the temperature acquisition unit (33) and the concentration acquisition unit (34), and the signal filtering unit (35) receives and sequentially filters, linearizes, amplifies, and filters the temperature signal and the concentration signal before outputting the signals; A multiple comparison unit (36), the input end of the multiple comparison unit (36) being coupled to the output end of the signal filtering unit (35), the multiple comparison unit (36) only receiving the processed temperature signal and comparing it with a plurality of preset temperature reference signals therein and outputting a corresponding comparison signal; A signal processing unit (37), wherein an input end of the signal processing unit (37) is coupled to the output ends of the multiple comparison unit (36) and the signal filtering unit (35), and the signal processing unit (37) receives the comparison signal and the processed concentration signal and outputs a control signal; an execution unit (39), wherein an input end of the execution unit (39) is coupled to an output end of the signal processing unit (37), an output end of the execution unit (39) is connected to an adjusting electromagnet (26) and a pump body, and the execution unit (39) responds to a corresponding control signal and controls the adjusting electromagnet (26) and the pump body to start and stop; A logic register unit (38) is coupled to the signal processing unit (37), and the logic register unit (38) is used to store a control signal corresponding to the drive control logic.

7. The functional boat propeller drive motor according to claim 6, characterized in that: The temperature acquisition unit (33) comprises a thermistor, the concentration acquisition unit (34) comprises an ion sensor, the signal filtering unit (35) comprises a first voltage comparator, a resistance bridge, a first operational amplifier, a second operational amplifier, a filter resistor and a filter capacitor, the multiple comparison unit (36) comprises a lower limit comparator circuit, an upper limit comparison circuit and a double limit comparison circuit in parallel, the signal processing unit (37) comprises an AD converter and an embedded microcontroller connected thereto, the logic register unit (38) comprises a register, and the execution unit (39) comprises a first digital potentiometer connected in series with the regulating electromagnet (26) and a motor drive chip connected to the pump body.

8. The functional boat blade drive motor according to claim 1, characterized in that: The inner ring of the outer rotor housing (10) is fixedly connected to a ring of the outer rotor inner housing (9), and an annular counterweight ring sleeve (11) is fixedly connected between the outer rotor inner housing (9) and the outer rotor housing (10).

9. The blade drive motor for a functional boat according to claim 6, characterized in that: The invention also includes a rotation component, one end of the inner rotor shaft (8) passes through the annular cylinder (2) and the base (1) to the outside, and the rotation component is fixedly connected to the base (1) and is drivingly connected to the one end of the inner rotor shaft (8) that passes through, the rotation component is used to be fixedly installed on the functional boat, and the signal processing unit (37) is coupled to the rotation component, and a power supply circuit is connected between the signal processing unit (37) and the inner stator (3) and the outer stator (5), and the rotation component has an interference state and a non-interference state. When the rotation component is in the non-interference state, the base (1) and the rotation component are stationary, and when the rotation component is in the interference state, the inner rotor shaft (8) is stationary and the base (1) is rotating.

10. The functional boat blade drive motor according to claim 9, characterized in that: The self-rotating assembly comprises a connecting cylinder seat (12) fixedly connected to the base (1), a connecting cover (17) detachably connected to the connecting cylinder seat (12), a mounting ring plate (13) for dividing the connecting cylinder seat (12) and the connecting cover (17) into a front connecting chamber and a rear connecting chamber, a connecting bearing (14) fixedly connected to the rear connecting chamber, a connecting shaft (15) fixedly connected to the inner ring of the connecting bearing (14) and extending through the mounting ring plate (13) to the front connecting chamber, a transmission electromagnet (18) fixedly connected to the rear connecting chamber and located on the outer ring of the connecting shaft (15), a baffle plate (19) fixedly connected to the side of the transmission electromagnet (18) away from the connecting bearing (14), and a connecting shaft (15) fixedly connected to the connecting shaft (15). 5) a friction plate (20) passing through one end of the baffle (19), a fixed shaft (23) passing through the connection cover (17), a brake plate (22) fixedly connected to one end of the fixed shaft (23) and located in the connection cover (17), and a metal spring (21) arranged between the brake plate (22) and the friction plate (20); the connection shaft (15) located in the front connection cavity is transmission-connected to the inner rotor shaft (8) through a shaft sleeve (16); the transmission electromagnet (18) is coupled to the signal processing unit (37) through a second digital potentiometer; the power supply circuit includes a relay and a power supply connected in series with the transmission electromagnet (18); and the controlled end of the relay is coupled to the signal processing unit (37).

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