A high-efficiency heat dissipation and dust-proof motor end cover structure and heat dissipation and dust-proof method

Abstract

The invention discloses an efficient heat dissipation and dustproof motor end cover structure and a heat dissipation and dustproof method, comprising: a heat dissipation cavity, a heat dissipation end cover and a control component, wherein the heat dissipation end cover is provided with a plurality of heat dissipation holes, a closing component is arranged in the heat dissipation cavity, and the control component drives the closing component to dynamically close the heat dissipation holes; the invention arranges heat dissipation holes at the heat dissipation end cover, utilizes the closing component and the control component, converts the comprehensive state index of the motor into the corresponding expansion amount correction value, so that the expansion unit can drive the closing component, thereby realizing dynamic control of the closing state of the heat dissipation holes, which not only significantly improves the heat dissipation efficiency of the motor and optimizes the heat dissipation performance, but also utilizes the data fusion technology detected by the detection unit to correct the expansion amount of the thermal expansion material, thereby realizing accurate control of the opening and closing degree of the heat dissipation channel according to the real-time state of the motor, which is helpful to improve the heat dissipation efficiency and operation stability of the motor.

Description

Technical Field

[0001] The invention relates to motor heat dissipation, and in particular to a high-efficiency heat dissipation and dust-proof motor end cover structure and a heat dissipation and dust-proof method. Background Art

[0002] Electric Machinery is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. The main function of a motor is to convert electrical energy into mechanical energy (motor) or to convert mechanical energy into electrical energy.

[0003] During the use of the motor, due to the existence of motor loss, its temperature will continue to rise, and as the temperature rises, its loss will also increase accordingly. Therefore, if the motor cannot be cooled well, it is easy to cause the efficiency of the motor to decrease; in severe cases, it may even affect the life of the motor. Therefore, it is necessary to effectively transfer the heat generated inside the motor to the external environment so that the motor can be kept within a suitable operating temperature range to ensure the normal operation of the motor and extend its service life. The principle of motor heat dissipation mainly uses thermal principles such as heat conduction, convection and radiation to reduce the motor temperature through heat dissipation structures (such as heat sinks, cooling fans, etc.) and heat dissipation media (such as air, water, etc.). Common motor heat dissipation methods include natural air cooling, forced air cooling and water cooling. The natural air cooling method uses the airflow naturally generated when the motor is running to take away the heat inside the motor.

[0004] However, the existing motor heat dissipation cannot change the heat dissipation according to the real-time status of the motor. For example, when the motor load increases or the ambient temperature rises, the internal temperature will rise accordingly. At this time, if the heat dissipation channel is not opened or closed enough, it will cause heat accumulation and motor overheating, which will not only affect the performance, but may also shorten the life of the equipment and even cause failures. On the contrary, if the heat dissipation channel is opened too wide, it will cause energy waste and may cause the motor to be overcooled unnecessarily. Therefore, it is necessary to design an efficient heat dissipation and dustproof motor end cover structure and heat dissipation and dustproof method to solve the problem that the above-mentioned heat dissipation effect cannot be adjusted. Summary of the invention

[0005] The present invention overcomes the deficiencies of the prior art and provides a highly efficient heat dissipation and dust prevention motor end cover structure and a heat dissipation and dust prevention method.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an efficient heat dissipation and dust-proof motor end cover structure, comprising: a heat dissipation cavity, a heat dissipation end cover and a control component, one end of the heat dissipation cavity is installed at the end position of the motor and is connected to the inside of the motor, the heat dissipation end cover is installed at the other end of the heat dissipation cavity, the heat dissipation end cover is provided with a plurality of heat dissipation holes, the heat dissipation cavity is provided with a closing component, and the control component drives the closing component to dynamically close the heat dissipation holes;

[0007] The closing component comprises: a closing piece and a movable plate which are arranged in sequence; a fixing rod is arranged inside the heat dissipation cavity, one end of the fixing rod is fixed to the heat dissipation end cover, and the other end extends toward the inside of the heat dissipation cavity; the movable plate and the closing piece are both sleeved on the fixing rod, the closing piece is attached to the heat dissipation end cover, the closing piece and the movable plate are both provided with through holes corresponding to the heat dissipation holes, an elastic piece is arranged at the through hole position of the closing piece, one side of the elastic piece is fixed to the inner wall of the through hole of the closing piece, an annular strip is fixed to the inner wall of the through hole of the movable plate, and the side surface of the annular strip extends toward the position of the closing piece;

[0008] The control assembly includes: a detection unit, an expansion unit, a processing unit, an evaluation unit, a signal transmission unit and a temperature control unit; the expansion unit is located on a side of the moving plate away from the heat dissipation end cover, and the contact surface of the expansion unit, the moving plate and the heat dissipation cavity is fixed;

[0009] The detection unit is used to detect the data of the temperature, current and vibration amplitude of the motor, and transmit the data signal to the evaluation unit;

[0010] The evaluation unit uses a neural network algorithm to analyze and fuse the data based on the temperature, current and vibration amplitude of the motor, evaluates the comprehensive status indicators of the motor, and converts them into data signals;

[0011] The processing unit is used to receive the data signal of the evaluation unit, process it to obtain the expansion correction value, and convert the expansion correction value into a control signal;

[0012] The temperature control unit is used to receive the control signal converted from the expansion correction value, obtain the corresponding temperature adjustment signal, adjust the temperature of the expansion unit, control the expansion variable of the expansion unit, drive the movable plate to move, and control the closing degree of the heat dissipation hole.

[0013] In a preferred embodiment of the present invention, the elastic sheet is made of rubber, and the cross-section of the fixing rod is rectangular. A vertical rod is fixed at the end position of the fixing rod extending toward the inside of the heat dissipation cavity, and both ends of the vertical rod are fixed to the inner wall of the heat dissipation cavity. The vertical rod and the fixing rod are vertically arranged.

[0014] In a preferred embodiment of the present invention, the detection unit is installed inside the heat dissipation cavity, and the detection unit includes: a temperature sensor, a current sensor and a vibration sensor.

[0015] In a preferred embodiment of the present invention, the processing unit receives the data signal of the evaluation unit through the signal transmission unit, calculates the expansion correction value based on the comprehensive state index of the motor through a preset neural network algorithm, converts the calculated expansion correction value into a control signal, and sends it to the temperature control unit through the signal transmission unit.

[0016] In a preferred embodiment of the present invention, the expansion unit is a thermal expansion material of polyetheretherketone, and its initial state is in a contracted state. The closing component is closed to seal the heat dissipation hole. The expansion unit adjusts its own expansion change based on the temperature of the temperature control unit, drives the movable plate to move, and dynamically drives the opening of the closing component.

[0017] In a preferred embodiment of the present invention, a dustproof net is provided on a side of the heat dissipation end cover away from the closing component, threaded holes are provided on the heat dissipation end cover, and the dustproof net is fixed to the heat dissipation end cover by bolts.

[0018] In a preferred embodiment of the present invention, the temperature control unit comprises: a plurality of resistance heaters and a controller; the plurality of resistance heaters are dispersedly installed in the expansion unit.

[0019] A heat dissipation and dust prevention method for an efficient heat dissipation and dust prevention motor end cover structure, using the efficient heat dissipation and dust prevention motor end cover structure according to any one of the above claims, comprising the following steps:

[0020] S1, using temperature sensors, current sensors and vibration sensors to monitor key data of the motor's temperature, current and vibration amplitude in real time, and pre-processing the collected data before transmitting it to the processing unit;

[0021] S2. Obtain the change of the expansion coefficient of the expansion unit at different temperatures. Based on the real-time monitoring of the temperature and expansion coefficient changes inside the heat dissipation cavity, the expansion unit itself expands, which drives the moving plate to move and controls the degree of opening and closing of the elastic sheet;

[0022] S3, after receiving the data from the detection unit, the processing unit processes and analyzes the data using a neural network algorithm to obtain a comprehensive motor status index;

[0023] S4, calculating an expansion correction value based on the motor comprehensive state index and the expansion coefficient of the expansion unit, converting the calculated expansion correction value into a control signal, and sending it to the temperature control unit through the signal transmission unit;

[0024] S5, the temperature control unit receives the expansion correction value information. If the expansion correction value is a positive value, the expansion amount is increased, and the controller controls a plurality of resistance heaters in the expansion unit to heat. The expansion unit heats and expands, driving the movable plate to move toward the heat dissipation end cover, and the annular strip squeezes the elastic sheet so that the through hole of the closing sheet is gradually connected with the heat dissipation hole;

[0025] On the contrary, if the expansion correction value is negative, the temperature will be lowered, the expansion unit will shrink, and the moving plate will be driven away from the heat dissipation end cover to achieve the opening and closing adjustment of the heat dissipation hole.

[0026] In a preferred embodiment of the present invention, in S2, the expansion coefficient of the expansion unit changes at different temperatures, wherein the temperature range is divided into n intervals, each interval being [T 0 , T 1 ],[T 1 , T 2 ],……,[T n-1 , T n ], the expansion coefficient of the expansion unit in each different temperature range is ,in, is the thermal expansion coefficient intercept in each interval, is the slope of the change in thermal expansion coefficient with temperature in each interval.

[0027] In a preferred embodiment of the present invention, in S3, the calculation of the motor comprehensive state index is specifically to collect the real-time data state of the motor through a temperature sensor, a current sensor and a vibration sensor, and convert the collected data into the comprehensive state index of the motor through weighted averaging, specifically, ,in, is the weight coefficient, Indicates the comprehensive status index of the motor. The motor is at time t The temperature, Indicates the motor at time The current, Indicates the motor at time The vibration amplitude.

[0028] The present invention solves the defects existing in the background technology and has the following beneficial effects:

[0029] The present invention provides a high-efficiency heat dissipation and dust-proof motor end cover structure and a heat dissipation and dust-proof method, wherein heat dissipation holes are arranged at the heat dissipation end cover, and a closing component and a control component are used to convert the comprehensive state index of the motor into a corresponding expansion correction value, so that the expansion unit can drive the closing component, thereby realizing dynamic control of the closing state of the heat dissipation holes, which not only significantly improves the heat dissipation efficiency of the motor, but also optimizes the heat dissipation performance by accurately controlling the opening and closing degree of the heat dissipation holes.

[0030] The present invention uses the data fusion technology detected by the detection unit to correct the expansion amount of the thermal expansion material, thereby accurately controlling the opening and closing degree of the heat dissipation channel according to the real-time state of the motor, which helps to improve the heat dissipation efficiency and operation stability of the motor.

[0031] The present invention utilizes thermal expansion materials to automatically adjust the shape according to the comprehensive state indicators of the motor, thereby realizing dynamic opening and closing of the heat dissipation holes. When expansion occurs, the closed component can be pushed to expand the size of the heat dissipation holes, directly increasing the heat dissipation area and improving the heat dissipation efficiency. At the same time, when contraction occurs, the heat dissipation can be controlled to be gradually closed, reducing unnecessary heat dissipation losses, thereby saving energy and keeping the motor running within a suitable temperature range.

[0032] The present invention prevents dust and other pollutants from entering the motor while ensuring heat dissipation efficiency by installing a dustproof net fixed by bolts at the heat dissipation end cover, further extending the service life of the motor and ensuring its stable operation. At the same time, it can be easily disassembled and cleaned, ensuring the dustproof effect of the motor and maintaining good heat dissipation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0035] Figure 2 is a schematic diagram of a three-dimensional structure decomposition of a preferred embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the sealing component and the heat dissipation end cover of the preferred embodiment of the present invention;

[0037] Figure 4 It is a schematic diagram of the internal structure of the heat dissipation end cover of a preferred embodiment of the present invention;

[0038] Figure 5 This is a flow chart of a heat dissipation and dust prevention method of a high-efficiency heat dissipation and dust prevention motor end cover structure of the present invention;

[0039] In the figure: 1. heat dissipation cavity; 2. heat dissipation end cover; 3. heat dissipation hole; 4. closing plate; 5. movable plate; 6. dust screen; 7. through hole; 8. elastic sheet; 9. annular strip; 10. expansion unit; 11. temperature control unit. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0044] like Figure 1 and Figure 2 As shown, a high-efficiency heat dissipation and dust-proof motor end cover structure comprises: a heat dissipation cavity 1, a heat dissipation end cover 2 and a control component. One end of the heat dissipation cavity 1 is installed at the end position of the motor and is connected to the inside of the motor. The heat dissipation end cover 2 is installed at the other end of the heat dissipation cavity 1. The heat dissipation end cover 2 is provided with a plurality of heat dissipation holes 3. A closing component is arranged in the heat dissipation cavity 1. The control component drives the closing component to dynamically close the heat dissipation holes 3.

[0045] like Figure 2 and Figure 3 As shown, the closing component includes: a closing sheet 4 and a moving plate 5 which are arranged in sequence, and the closing sheet 4 and the moving plate 5 are both provided with through holes 7 corresponding to the heat dissipation holes 3, wherein the closing sheet 4 is attached to the heat dissipation end cover 2, and a plurality of through holes 7 positions corresponding to the heat dissipation holes 3 on the closing sheet 4 are all provided with elastic sheets 8 for closing the heat dissipation holes 3, wherein the elastic sheet 8 is made of rubber material, and the opening and closing of the elastic sheet 8 is convenient, so as to control the heat dissipation degree of the motor, and one side of the elastic sheet 8 is fixed to the inner wall of the through hole 7 of the closing sheet 4;

[0046] A fixing rod is arranged inside the heat dissipation cavity 1, one end of the fixing rod is fixed to the heat dissipation end cover 2, and the other end extends toward the inside of the heat dissipation cavity 1, and a vertical rod is fixed to the end of the fixing rod extending toward the inside of the heat dissipation cavity 1, and both ends of the vertical rod are fixed to the inner wall of the heat dissipation cavity 1, and the vertical rod and the fixing rod are arranged vertically;

[0047] The movable plate 5 and the closing piece 4 are both sleeved on the fixed rod, and the movable plate 5 and the closing piece 4 are located between the vertical rod and the heat dissipation end cover 2, wherein the cross section of the fixed rod is set to be rectangular, so that the movable plate 5 can move on the fixed rod, and the rotation direction of the movable plate 5 is limited to avoid the through hole 7 on the movable plate 5 and the through hole 7 on the closing piece 4 being staggered due to the rotation of the movable plate 5. An annular strip 9 is fixed to the inner wall of the through hole 7 of the movable plate 5, and the side surface of the annular strip 9 extends toward the position of the closing piece 4, and the outer wall of the extended position of the annular strip 9 is lower than the outer wall of the annular strip 9 located in the through hole 7, so that in the subsequent movement of the movable plate 5 toward the closing piece 4, the extended position of the annular strip 9 can drive the elastic sheet 8 to fold and deform toward the position of the heat dissipation hole 3, fit the inner wall of the heat dissipation hole 3, and the extended position of the annular strip 9 can be embedded in the heat dissipation hole 3;

[0048] The control component includes: a detection unit, an expansion unit 10, a processing unit, an evaluation unit, a signal transmission unit and a temperature control unit 11; a limiting plate is fixed on the inner wall of the heat dissipation cavity 1, the limiting plate is located on the side of the movable plate 5 away from the heat dissipation end cover 2, the expansion unit 10 is located between the movable plate 5 and the limiting plate, and the contact surface of the expansion unit 10, the movable plate 5 and the limiting plate is fixed, and the setting of the limiting plate will limit the expansion direction of the expansion unit 10, so that the expansion unit 10 always approaches or moves away from the movable plate 5;

[0049] The detection unit is installed inside the heat dissipation cavity 1, and the detection unit includes: a temperature sensor, a current sensor and a vibration sensor, which are used to detect key data of the temperature, current and vibration of the motor in real time, and transmit the signal to the evaluation unit;

[0050] like Figure 4As shown, the expansion unit 10 is a thermal expansion material of polyetheretherketone, which is in a contracted state in its initial state, and the closing component is closed to close the heat dissipation hole 3. The expansion unit 10 adjusts its own expansion change based on the temperature of the temperature control unit 11, drives the movable plate 5 to move, and dynamically drives the opening of the closing component; during the operation of the motor, the thermal expansion material will expand according to the temperature inside the heat dissipation cavity 1, as the basic expansion amount of the thermal expansion material, thereby driving the movable plate 5 to move toward the closing plate 4, and because the closing plate 4 is attached to the heat dissipation end cover 2, in the initial state, the elastic sheet 8 closes the position of the heat dissipation hole 3, so when the movable plate 5 moves, the annular strip 9 on the movable plate 5 will contact the elastic sheet 8, thereby driving the elastic sheet 8 to fold toward the inner wall of the heat dissipation hole 3 in a fitting trend, controlling the opening and closing size of the heat dissipation hole 3, and realizing the dynamic opening and closing of the heat dissipation hole 3, which significantly improves the heat dissipation efficiency of the motor and helps to improve the heat dissipation efficiency and operation stability of the motor;

[0051] The evaluation unit uses a neural network algorithm to analyze and fuse the data based on the temperature, current and vibration amplitude of the motor, and specifically converts the data into a comprehensive state index of the motor through weighted average, thereby evaluating the comprehensive state index of the motor and understanding the overall performance of the motor. Based on the overall performance, the opening and closing degree of the heat dissipation hole 3 is controlled to improve the heat dissipation efficiency and operation stability of the motor.

[0052] It should be noted that the expansion coefficient of the thermal expansion material will change at different temperatures. Therefore, when calculating the expansion correction value, it is necessary to consider the expansion coefficient of the thermal expansion material in this temperature range, so as to improve the expansion accuracy of the thermal expansion material, thereby accurately controlling the opening and closing degree of the heat dissipation hole and optimizing the heat dissipation performance.

[0053] Therefore, after receiving the data signal from the evaluation unit, the processing unit calculates the expansion correction value based on the motor comprehensive state index and the expansion coefficient of the thermal expansion material in different temperature ranges, converts the calculated expansion correction value into a control signal, and sends it to the temperature control unit 11 through the signal transmission unit;

[0054] The temperature control unit 11 includes: a plurality of resistance heaters and a controller; the plurality of resistance heaters are dispersedly installed in the expansion unit 10, and the temperature control unit 11 is used to receive a control signal converted from the expansion correction value, obtain a corresponding temperature adjustment signal, adjust the temperature of the expansion unit 10, control the expansion variable of the expansion unit 10, and drive the movable plate 5 to move.

[0055] The initial state, that is, before the motor is started, is defined as the initial state. In this state, the expansion unit 10 is also in the initial contraction state, and the sealing component completely seals the heat dissipation hole 3.

[0056] When the motor is running, the state inside the motor changes. The temperature sensor, current sensor and vibration sensor inside the motor monitor the key data of the motor's temperature, current and vibration amplitude in real time, and transmit the key data to the evaluation unit. The evaluation unit uses the neural network algorithm to analyze and fuse the data based on the temperature, current and vibration amplitude data of the motor to evaluate the comprehensive state index of the motor.

[0057] The processing unit receives the comprehensive state index of the motor and the expansion coefficient of the thermal expansion material in different temperature ranges, calculates the expansion correction value, converts the calculated expansion correction value into a control signal, and sends it to the temperature control unit 11 through the signal transmission unit;

[0058] According to the obtained expansion correction value, when the expansion correction value is positive, the temperature control unit 11 controls a number of resistance heaters installed in the expansion unit 10 to heat to a temperature corrected by the specified temperature expansion correction value, and the expansion unit 10 expands to the specified position accordingly. Since the contact surface between the expansion unit 10 and the movable plate 5 is fixed, the movable plate 5 is driven to move toward the position of the closing plate 4, and the annular strip 9 on the movable plate 5 is aligned with the elastic sheet 8 on the closing plate 4, and the elastic sheet 8 is squeezed so that the elastic sheet 8 is gradually folded toward the inner wall of the heat dissipation hole 3 until the movable plate 5 moves to the specified position, opens the heat dissipation hole 3 closed by the elastic sheet 8, and controls the size of the opening of the heat dissipation hole 3, so that the inside of the motor can be effectively cooled, thereby realizing dynamic control of the closed state of the heat dissipation hole 3, which not only significantly improves the heat dissipation efficiency of the motor, but also optimizes the heat dissipation performance by accurately controlling the opening and closing degree of the heat dissipation hole 3;

[0059] When the expansion correction value is negative, the temperature control unit 11 will control the temperature to decrease, and the expansion unit 10 will shrink to the specified position accordingly, driving the movable plate 5 to move away from the closing plate 4, and the annular strip 9 gradually leaves the heat dissipation hole 3, reducing the pressure on the elastic plate 8. The elastic force of the elastic plate 8 itself is gradually restored, thereby reducing the size of the heat dissipation channel of the heat dissipation hole 3, controlling the heat dissipation to be gradually closed, reducing unnecessary heat dissipation losses, thereby saving energy and keeping the motor running within a suitable temperature range.

[0060] In a preferred embodiment of the present invention, a dust screen 6 is provided on the side of the heat dissipation end cover 2 away from the closed component, a threaded hole is provided on the heat dissipation end cover 2, and the dust screen 6 is fixed to the heat dissipation end cover 2 by bolts;

[0061] By installing a dustproof net 6 fixed with bolts at the position of the heat dissipation end cover 2, the heat dissipation efficiency is ensured while preventing dust and other pollutants from entering the motor, further extending the service life of the motor and ensuring its stable operation. At the same time, it can be easily disassembled and cleaned, ensuring the dustproof effect of the motor and maintaining good heat dissipation performance.

[0062] like Figure 5 As shown, a heat dissipation and dust prevention method for a high-efficiency heat dissipation and dust prevention motor end cover structure, using a high-efficiency heat dissipation and dust prevention motor end cover structure according to any one of the above claims, comprises the following steps:

[0063] S1. Use temperature sensors, current sensors and vibration sensors to monitor the key data of the temperature, current and vibration amplitude of the motor in real time, and perform pre-processing of filtering, denoising and normalization on the collected data to improve the quality, accuracy and reliability of the data, and then transmit the pre-processed data to the processing unit;

[0064] S2. Considering that the expansion coefficient of the thermal expansion material will change at different temperatures, when calculating the expansion correction value, it is necessary to consider the expansion coefficient of the thermal expansion material in this temperature range, so as to improve the expansion accuracy of the thermal expansion material, thereby accurately controlling the opening and closing degree of the heat dissipation hole and optimizing the heat dissipation performance;

[0065] The expansion coefficient change of the expansion unit 10 at different temperatures is obtained. The expansion unit 10 is a thermal expansion material of polyetheretherketone, and its initial state is in a contracted state. The closing component is closed to close the heat dissipation hole 3, wherein the temperature range is divided into n intervals, each interval is [T 0 , T 1 ],[T 1 , T 2 ],……,[T n-1 , T n ], the expansion coefficient of the expansion unit in each different temperature range is ,in, is the thermal expansion coefficient intercept in each interval, is the slope of the change of thermal expansion coefficient with temperature in each interval;

[0066] Based on the real-time monitored temperature and expansion coefficient changes inside the heat dissipation cavity 1, the thermal expansion material itself expands. As the basic expansion amount of the thermal expansion material, the thermal expansion material will expand according to the temperature inside the heat dissipation cavity 1. As the basic expansion amount of the thermal expansion material, the movable plate 5 will be driven to move toward the closing plate 4. Because the closing plate 4 is attached to the heat dissipation end cover 2, in the initial state, the elastic plate 8 closes the position of the heat dissipation hole 3. Therefore, when the movable plate 5 moves, the annular strip 9 on the movable plate 5 will contact the elastic plate 8, thereby driving the elastic plate 8 to fold toward the inner wall of the heat dissipation hole 3 in a fitting trend, controlling the opening and closing size of the heat dissipation hole 3, and realizing the dynamic opening and closing of the heat dissipation hole 3, which significantly improves the heat dissipation efficiency of the motor and helps to improve the heat dissipation efficiency and operation stability of the motor.

[0067] S3, after receiving the data from the detection unit, the processing unit processes and analyzes the data using a neural network algorithm to obtain a comprehensive motor status index;

[0068] The calculation of the motor comprehensive status index is specifically to collect the real-time data status of the motor through the temperature sensor, current sensor and vibration sensor, and convert the collected data into the comprehensive status index of the motor through weighted average, specifically, ,in, is the weight coefficient, Indicates the comprehensive status index of the motor. Indicates the motor at time The temperature, Indicates the motor at time The current, Indicates the motor at time The vibration amplitude;

[0069] S4, calculating an expansion correction value based on the motor comprehensive state index and the expansion coefficient of the expansion unit;

[0070] Before calculating the expansion correction value, the correction factor needs to be defined , is a function of the comprehensive motor state index, which is adjusted according to the actual operating state of the motor. Indicates that in the temperature range [T n-1 , T n ] coefficient of expansion;

[0071] By formula , calculate the expansion correction value ,in, represents the change in temperature, that is, Indicates the actual temperature of the thermal expansion material at present. Indicates a reference temperature, such as room temperature;

[0072] The calculated expansion correction value is converted into a control signal and sent to a temperature control unit through a signal transmission unit;

[0073] S5, the temperature control unit receives the expansion correction value information. If the expansion correction value is a positive value, the expansion amount is increased, and the controller controls a plurality of resistance heaters in the expansion unit to heat. The expansion unit heats and expands, driving the movable plate to move toward the heat dissipation end cover, and the annular strip squeezes the elastic sheet so that the through hole of the closing sheet is gradually connected with the heat dissipation hole;

[0074] On the contrary, if the expansion correction value is negative, the temperature will be lowered, the expansion unit will shrink, and the moving plate will be driven away from the heat dissipation end cover to achieve the opening and closing adjustment of the heat dissipation hole;

[0075] Therefore, the comprehensive state index of the motor is converted into a corresponding expansion correction value, so that the expansion unit can drive the closing component, thereby realizing dynamic control of the closing state of the heat dissipation holes, which not only significantly improves the heat dissipation efficiency of the motor, but also optimizes the heat dissipation performance by precisely controlling the opening and closing degree of the heat dissipation holes.

[0076] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An efficient heat dissipation and dustproof motor end cover structure, comprising: A heat dissipation cavity, a heat dissipation end cover and a control component, wherein one end of the heat dissipation cavity is installed at the end position of the motor and is connected to the inside of the motor, the heat dissipation end cover is installed at the other end of the heat dissipation cavity, the heat dissipation end cover is provided with a plurality of heat dissipation holes, the heat dissipation cavity is provided with a closing component, and the control component drives the closing component to dynamically close the heat dissipation holes; The closing component comprises: a closing piece and a movable plate which are arranged in sequence; a fixing rod is arranged inside the heat dissipation cavity, one end of the fixing rod is fixed to the heat dissipation end cover, and the other end extends toward the inside of the heat dissipation cavity; the movable plate and the closing piece are both sleeved on the fixing rod, the closing piece is attached to the heat dissipation end cover, the closing piece and the movable plate are both provided with through holes corresponding to the heat dissipation holes, an elastic piece is arranged at the through hole position of the closing piece, one side of the elastic piece is fixed to the inner wall of the through hole of the closing piece, an annular strip is fixed to the inner wall of the through hole of the movable plate, and the side surface of the annular strip extends toward the position of the closing piece; The control assembly includes: a detection unit, an expansion unit, a processing unit, an evaluation unit, a signal transmission unit and a temperature control unit; the expansion unit is located on a side of the moving plate away from the heat dissipation end cover, and the contact surface of the expansion unit, the moving plate and the heat dissipation cavity is fixed; The detection unit is used to detect the data of the temperature, current and vibration amplitude of the motor, and transmit the data signal to the evaluation unit; The evaluation unit uses a neural network algorithm to analyze and fuse the data based on the temperature, current and vibration amplitude of the motor, evaluates the comprehensive status indicators of the motor, and converts them into data signals; The processing unit is used to receive the data signal of the evaluation unit, process it to obtain the expansion correction value, and convert the expansion correction value into a control signal; The temperature control unit is used to receive the control signal converted from the expansion correction value, obtain the corresponding temperature adjustment signal, adjust the temperature of the expansion unit, control the expansion variable of the expansion unit, drive the movable plate to move, and control the closing degree of the heat dissipation hole.

2. The high-efficiency heat dissipation and dust-proof motor end cover structure according to claim 1 is characterized in that: The elastic sheet is made of rubber, and the cross-section of the fixing rod is rectangular. A vertical rod is fixed at the end of the fixing rod extending toward the inside of the heat dissipation cavity. Both ends of the vertical rod are fixed to the inner wall of the heat dissipation cavity. The vertical rod and the fixing rod are vertically arranged.

3. The high-efficiency heat dissipation and dust-proof motor end cover structure according to claim 1 is characterized in that: The detection unit is installed inside the heat dissipation cavity, and the detection unit includes: a temperature sensor, a current sensor and a vibration sensor.

4. The high-efficiency heat dissipation and dust-proof motor end cover structure according to claim 1 is characterized in that: The processing unit receives the data signal from the evaluation unit through the signal transmission unit, calculates the expansion correction value based on the comprehensive state index of the motor through a preset neural network algorithm, converts the calculated expansion correction value into a control signal, and sends it to the temperature control unit through the signal transmission unit.

5. The high-efficiency heat dissipation and dust-proof motor end cover structure according to claim 1 is characterized in that: The expansion unit is a thermal expansion material of polyetheretherketone, and its initial state is in a contracted state. The closing component is closed to seal the heat dissipation hole. The expansion unit adjusts its own expansion change based on the temperature of the temperature control unit, drives the movable plate to move, and dynamically drives the opening of the closing component.

6. The high-efficiency heat dissipation and dust-proof motor end cover structure according to claim 1 is characterized in that: A dustproof net is arranged on the side of the heat dissipation end cover away from the closing component, a threaded hole is arranged on the heat dissipation end cover, and the dustproof net is fixed to the heat dissipation end cover by bolts.

7. The heat dissipation and dust prevention method of the high-efficiency heat dissipation and dust prevention motor end cover structure according to claim 1 is characterized in that: The temperature control unit comprises: a plurality of resistance heaters and a controller; the plurality of resistance heaters are dispersedly installed in the expansion unit.

8. A heat dissipation and dust prevention method for an efficient heat dissipation and dust prevention motor end cover structure, based on the efficient heat dissipation and dust prevention motor end cover structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, using temperature sensors, current sensors and vibration sensors to monitor key data of the motor's temperature, current and vibration amplitude in real time, and pre-processing the collected data before transmitting it to the processing unit; S2. Obtain the change of the expansion coefficient of the expansion unit at different temperatures. Based on the real-time monitoring of the temperature and expansion coefficient changes inside the heat dissipation cavity, the expansion unit itself expands, which drives the moving plate to move and controls the degree of opening and closing of the elastic sheet; S3, after receiving the data from the detection unit, the processing unit processes and analyzes the data using a neural network algorithm to obtain a comprehensive motor status index; S4, calculating an expansion correction value based on the motor comprehensive state index and the expansion coefficient of the expansion unit, converting the calculated expansion correction value into a control signal, and sending it to the temperature control unit through the signal transmission unit; S5, the temperature control unit receives the expansion correction value information. If the expansion correction value is a positive value, the expansion amount is increased, and the controller controls a plurality of resistance heaters in the expansion unit to heat. The expansion unit heats and expands, driving the movable plate to move toward the heat dissipation end cover, and the annular strip squeezes the elastic sheet so that the through hole of the closing sheet is gradually connected with the heat dissipation hole; On the contrary, if the expansion correction value is negative, the temperature will be lowered, the expansion unit will shrink, and the moving plate will be driven away from the heat dissipation end cover to achieve the opening and closing adjustment of the heat dissipation hole.

9. The heat dissipation and dust prevention method of the high-efficiency heat dissipation and dust prevention motor end cover structure according to claim 8, characterized in that: In S2, the expansion coefficient of the expansion unit changes at different temperatures, wherein the temperature range is divided into n intervals, each interval being [T0, T1], [T1, T2], ..., [T n-1 , T n ], the expansion coefficient of the expansion unit in each different temperature range is ,in, is the thermal expansion coefficient intercept in each interval, is the slope of the change in thermal expansion coefficient with temperature in each interval.

10. The heat dissipation and dust prevention method of the high-efficiency heat dissipation and dust prevention motor end cover structure according to claim 8, characterized in that: In S3, the calculation of the motor comprehensive state index is specifically to collect the real-time data state of the motor through the temperature sensor, the current sensor and the vibration sensor, and convert the collected data into the comprehensive state index of the motor through weighted average, specifically, in, is the weight coefficient, Indicates the comprehensive status index of the motor. Indicates the motor at time The temperature, Indicates the motor at time The current, Indicates the motor at time The vibration amplitude.

Images