Explosion-proof three-phase asynchronous motor having efficient heat dissipation function

Abstract

The present invention relates to the technical field of three-phase asynchronous motors. Disclosed is an explosion-proof three-phase asynchronous motor having an efficient heat dissipation function, comprising an electric machine. An air outlet end and an air inlet end are respectively provided at the upper end and the lower end of the electric machine; an air inlet fan is mounted in the middle of the air inlet end; a filter screen is provided on the outer side of the electric machine; heat dissipation fins are provided on one side of the filter screen; scraping plates are provided at the upper end of the electric machine; notches are formed in two sides of each scraping plate, and the notches in one side are attached to the heat dissipation fins; an air guide plate is mounted at the upper end of the air outlet end; driving wheels are mounted at the upper end of the air guide plate; and the outer walls of the driving wheels are attached to the heat dissipation fins. According to the present invention, on the basis of the principle that hot air actively moves upwards, an upward airflow is formed inside the electric machine, accelerating the dissipation of heat generated during the operation of the electric machine, and unidirectional airflows are simultaneously formed both inside and outside the electric machine, further improving the heat dissipation efficiency of the electric machine.

Description

An explosion-proof three-phase asynchronous motor with efficient heat dissipation function Technical Field

[0001] The present invention relates to the technical field of three-phase asynchronous motors, in particular to an explosion-proof three-phase asynchronous motor with a high-efficiency heat dissipation function. Background Art

[0002] A three-phase asynchronous motor is a type of induction motor powered by three phases of 380V AC (with a phase difference of 120 degrees). Because the rotor and stator's rotating magnetic field rotate in the same direction but at different speeds, a slip exists, hence the name. The rotor speed of a three-phase asynchronous motor is lower than that of the rotating magnetic field. The relative motion between the rotor winding and the magnetic field generates an electromotive force and current, which interacts with the magnetic field to produce electromagnetic torque, achieving energy conversion.

[0003] The existing three-phase asynchronous motors are mostly equipped with a heat dissipation mechanism to install fan blades on one side of the rotor, so that the rotor drives the fan blades to rotate synchronously during operation, thereby forming a one-way airflow inside the motor to achieve a heat dissipation effect. Although the existing technology achieves the heat dissipation effect and the heat dissipation mechanism is simple, after long-term use, dust is easily attached to the inside of the motor and the heat dissipation fins on the surface of the motor, affecting the heat dissipation effect. As the heat inside the motor accumulates, high temperature is likely to cause the dust to ignite, causing the motor to explode.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide an explosion-proof three-phase asynchronous motor with efficient heat dissipation function to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an explosion-proof three-phase asynchronous motor with efficient heat dissipation function, comprising a motor, wherein an air outlet and an air inlet are respectively provided at the upper and lower ends of the motor, an air intake fan is installed in the middle of the air inlet, a filter is provided on the outside of the motor, a heat dissipation fin is provided on one side of the filter, a scraper is provided on the upper end of the motor, notches are provided on both sides of the scraper, and the notch on one side is in contact with the heat dissipation fin, and an air guide plate is installed on the upper end of the air outlet;

[0007] The heat dissipation device is a heat dissipation device, and the cooling device is a heat dissipation device. The heat dissipation device is a heat dissipation device, and the cooling device is a heat dissipation device. The cooling device is a heat dissipation device, and the cooling device is a heat dissipation device.

[0008] The heat dissipation device is a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device, a heat dissipation device The inner wall of the heat sink fin fits the outer wall of the motor. When the motor is working, the heat sink fin and the intake fan rotate synchronously, and the heat generated by the motor is absorbed by the heat sink fin. When the heat sink fin rotates, the liquid air gathers under the hollow cavity under the action of gravity, and the capillary layer rotates synchronously with the heat sink fin. When the capillary layer passes through the liquid air gathering area, it will carry enough liquid air to rise. The hydraulic air evaporates by absorbing the heat generated during the operation of the motor, further accelerating the heat loss inside the motor.

[0009] Furthermore, a plurality of protrusions are provided on the outside of the filter screen, a spring shaft is installed on one side of the scraper, a spring is installed on one side of the spring shaft, the outer wall of the spring fits the protrusion, and the length of the spring is greater than the length of the notch; two notches are provided on the scraper, the inner wall size of one notch matches the outer wall size of the heat sink fin, and the inner wall size of the notch on the other side of the scraper is greater than the outer wall size of the heat sink fin, and the driving wheel drives the heat sink fins to rotate, thereby causing relative movement between the heat sink fins and the scraper, and when the heat sink fins form relative movement with respect to the notches of the same size, the notches scrape off dust on the surface of the heat sink fins, and the scraped dust accumulates Below the notch, a spring shaft and a spring are installed below the notch, and a protrusion is provided in a ring on the surface of the filter. The outer wall surface of the protrusion is arc-shaped. The surface of the filter has a thickness difference due to the setting of the protrusion. When the reed contacts the protrusion in the moving state, the protrusion pushes the reed to deflect with the spring shaft as the center until the protrusion completely breaks contact with the deflected reed. At this time, the elastic potential energy accumulated inside the spring shaft is released, driving the reed to deflect. During the deflection, the reed ejects the dust accumulated below the notch, thereby separating the dust from the scraper. The reed is made of elastic material to ensure that the end surface of the reed is always in contact with the outer wall surface of the filter and the heat sink.

[0010] Furthermore, the combination of the filter screen and the heat dissipation fins is provided with several groups, the number of the driving wheels is the same as the number of the driving fins, the fins in each group are connected to a single driving wheel, and the driving wheel is provided with two rotation modes; there are two groups of driving wheels, the two groups of driving wheels are respectively arranged on both sides above the scraper, each group of driving wheels is driven by an electric motor, the intake fan is driven by a separate motor, and the rotation directions of the two groups of driving wheels are opposite, each of the cooling fins is connected to a driving wheel, and two adjacent cooling fins are respectively connected to different groups of driving wheels, and the driving wheel drives the cooling fins to rotate when driven by the motor. Since the cooling fins are hollow, the cooling fins During the rotation of the fins, the capillary layer drives the liquid air to rise, thereby achieving the phenomenon of liquid air rising on both sides of the motor, so as to achieve the same heat dissipation effect on both sides of the motor; there are two rotation modes between the heat sink fins, namely, the driving wheel drives the heat sink fins to rotate clockwise and counterclockwise, and at the same time cooperates with the notch. When each area of ​​the heat sink fins rotates one circle, it will pass through the notch twice. When the area on the heat sink fins passes through the notch during the rising period, the outer wall size of the notch matches the size of the heat sink fins, and then the notch appears to limit the dust on the surface of the heat sink fins to the bottom of the scraper. When the area on the heat sink fins passes through the notch during the descending period, the outer wall size of the notch is larger than the size of the heat sink fins.

[0011] Furthermore, the outer wall of the upper end of the air guide plate fits with the inner wall of the filter screen, the lower end surface of the air guide plate is arc-shaped, and an air outlet is provided between the air guide plate and the motor, the position of the air outlet corresponds to the position of the scraper, the scraper is arc-shaped, and an air flow guide shell is installed on the outer side of the heat dissipation fin; an air guide plate is provided above the air outlet end, and the air guide plate cooperates with the outer shell of the motor to limit the air outlet area of ​​the air outlet end, so that the airflow leaves from the air outlet on the left and right sides of the air guide plate, and the position of the air outlet corresponds to the position of the scraper The airflow at the air outlet is output in the direction of the side where the reed is located. The airflow is continuously output to the outside at the air outlet. At the same time, the reed cleans the dust attached to the surface of the heat sink fins, so that the dust is separated from the heat sink fins and the filter. The separated dust leaves the air under the influence of the airflow. The lower end of the air guide plate is arc-shaped to reduce the loss of kinetic energy of the airflow during the direction change. The airflow needs to pass through the filter after leaving the air outlet. During the process of passing through the filter, the airflow cleans the dust stuck in the pores of the filter.

[0012] Furthermore, the inner diameter of the airflow guide shell is equal to the outer diameter of the heat sink fin, and the upper and lower ends of the airflow guide shell are provided with openings, and the positions of the two openings correspond to the positions of the air outlet and the air inlet, respectively; the outer wall of the heat sink fin is installed with an airflow guide shell, and the airflow guide shell cooperates with the outer shell of the motor to form an airflow channel, and the heat sink fin is located inside the airflow channel, and the upper and lower ends of the airflow guide shell are provided with openings, and the openings are provided to provide an input port and an output port for the airflow, the opening located at the top is the airflow output end, and the opening located at the bottom is the airflow input end, and the positions of the airflow output ends correspond to the positions of the air outlet, respectively. The output airflow is generated by the intake fan in the working state, and the airflow continuously absorbs the heat generated during the operation of the motor during the movement, so that the airflow output from the air outlet has high-speed and high-temperature characteristics. The airflow output from the air outlet passes above the airflow output end. According to the Bernoulli effect, there is a pressure difference between the airflow output end and the airflow input end. The area above the airflow output end is a low-pressure area, and the area above the airflow input end is a normal-pressure area. Under the action of the pressure difference, the air forms a unidirectional airflow inside the airflow channel. The source of the airflow is the air inside the external environment. While the airflow passes through the heat sink fins, the area of ​​the heat sink fins that is higher than the airflow temperature is cooled.

[0013] Furthermore, a partition is installed in the middle of the opening below, and the lower end surface of the partition is lower than the lower end surface of the airflow guide shell. The upper end of the partition is provided with a groove, and the size of the groove is larger than the outer wall size of the heat dissipation fin; a partition is provided at the airflow input end, and the width of the partition is the same as the width of the air inlet end. Since the lower end surface of the partition is lower than the lower end surface of the airflow guide shell, a groove is provided at the upper end of the partition, and the size of the groove is larger than the outer wall size of the heat dissipation fin. The size of the partition is set to separate the airflow entering the air inlet end from the airflow entering the airflow input end, so as to avoid the formation of high-speed airflow near the airflow input end due to the intake fan, resulting in the balance of the air pressure at the airflow input end and the air pressure at the airflow output end, thereby affecting the heat dissipation effect of the motor.

[0014] Furthermore, a cylinder is installed in the middle of the air outlet, and the cylinder is arranged horizontally. The front and rear ends of the cylinder are connected to the airflow guide shell. There are several folding plates on the outer wall of the cylinder, and the material of the folding plates is the same as that of the reed. The airflow enters the interior of the motor from the air inlet end, and the airflow needs to pass through the filter below before entering the motor, so that the dust carried by the airflow is restricted in the pores of the filter under the action of the airflow, wherein a cylinder and a folding plate are provided at the air outlet, and the size of the folding plate matches the size of the pore, and the position of the folding plate corresponds to the position of the pore. Due to the existence of the pores, the folding plate squeezes out the dust inside the pores during the rotation of the filter, thereby avoiding insufficient airflow intensity to clean the dust stuck in the pores.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0016] 1. This explosion-proof three-phase asynchronous motor with efficient heat dissipation function is equipped with an intake fan and a filter. The intake fan is driven by a separate motor. The airflow intensity generated by the intake fan is adjusted by adjusting the power of the motor. At the same time, the airflow formed by the intake fan is upward, and the characteristic of the hot air flow actively moving upward accelerates the loss of heat generated during the operation of the motor. At the same time, the filter is arranged in an annular shape and cooperates with the drive wheel to realize the recycling of various areas of the outer wall of the annular filter, thereby extending the effective service life of the filter.

[0017] 2. This explosion-proof three-phase asynchronous motor with efficient heat dissipation function has a filter and heat dissipation fins. The filter and heat dissipation fins are driven by the drive wheel and cooperate with the intake fan to cool the airflow before entering the motor. The airflow enters the motor at a low temperature. The low-temperature airflow has a better heat dissipation effect on the motor per unit time. At the same time, the heat dissipation fins carry liquid air upward, which cooperates with the airflow to further improve the heat dissipation effect. The arrangement of the air outlet and the air guide plate enables the output airflow to actively clean the filter, thereby achieving a self-cleaning effect of the filter.

[0018] 3. This explosion-proof three-phase asynchronous motor with efficient heat dissipation function is equipped with a scraper and an airflow guide shell. The scraper is mainly used to clean the dust attached to the surface of the cooling fins to prevent the dust layer from adhering for a long time and covering it, which causes the cooling fins to be unable to come into direct contact with the airflow, affecting the heat exchange effect between the liquid air and the airflow. At the same time, the airflow guide shell cooperates with the air guide plate to dissipate heat synchronously on both sides of the motor casing based on the Bernoulli effect, thereby further improving the heat dissipation effect of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] FIG1 is a schematic diagram of the front view of the present invention;

[0021] FIG2 is an enlarged structural diagram of point A in FIG1 of the present invention;

[0022] FIG3 is an enlarged structural diagram of point B in FIG2 of the present invention;

[0023] FIG4 is a schematic diagram of the main structure of the present invention;

[0024] FIG5 is a schematic top view of the fan of the present invention;

[0025] FIG6 is a schematic diagram of the left side structure of the connection between the drive wheel and the heat dissipation fins of the present invention;

[0026] FIG7 is a schematic diagram of a partial structure of the connection between the scraper and the heat dissipation fins of the present invention when viewed from above.

[0027] In the figure: 1. Motor; 2. Air outlet; 3. Air inlet; 4. Air intake fan; 5. Filter; 6. Heat dissipation fin; 601. Hollow cavity; 602. Capillary layer; 603. Bump; 7. Scraper; 701. Spring shaft; 702. Spring; 8. Notch; 9. Air guide plate; 901. Air outlet; 902. Cylinder; 903. Folding plate; 11. Driving wheel; 12. Airflow guide shell; 1201. Opening; 1202. Partition. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Please refer to Figures 1 to 7. The present invention provides a technical solution: an explosion-proof three-phase asynchronous motor with efficient heat dissipation function, including a motor 1, wherein an air outlet 2 and an air inlet 3 are respectively provided at the upper and lower ends of the motor 1, an air intake fan 4 is installed in the middle of the air intake end 3, and a filter 5 is provided on the outside of the motor 1. The air intake fan 4 is driven by a separate motor. The airflow intensity generated by the air intake fan 4 is adjusted by adjusting the power of the motor. At the same time, the airflow formed by the air intake fan 4 is upward, and the heat loss generated during the operation of the motor 1 is accelerated in conjunction with the characteristic of the hot air flow actively moving upward. At the same time, the filter 5 is annularly arranged and cooperates with the driving wheel 11 to realize the recycling of various areas of the outer wall of the annular filter 5, thereby extending the single effective service life of the filter 5;

[0030] A heat dissipation fin 6 is provided on one side of the filter 5, and a scraper 7 is provided on the upper end of the motor 1;

[0031] The filter 5 and the heat dissipation fins 6 are both annular. The heat dissipation fins 6 are hollow structures. The interior of the heat dissipation fins 6 includes a hollow cavity 601 and a capillary layer 602. Liquid air is stored in the hollow cavity 601.

[0032] The outside of the filter screen 5 is provided with a plurality of protrusions 603. A spring shaft 701 is installed on one side of the scraper 7. A spring leaf 702 is installed on one side of the spring shaft 701. The outer wall of the spring leaf 702 fits the protrusion 603. The length of the spring leaf 702 is greater than the length of the notch 8.

[0033] The combination of the filter 5 and the heat dissipation fins 6 is provided in several groups. The number of the driving wheels 11 is the same as the number of the heat dissipation fins 6. The heat dissipation fins 6 in each group are connected to a single driving wheel 11. The driving wheel 11 is provided with two rotation modes.

[0034] Notches 8 are provided on both sides of the scraper 7, and the notches 8 on one side are fitted with the heat dissipation fins 6. An air guide plate 9 is installed on the upper end of the air outlet end 2, and a driving wheel 11 is installed on the upper end of the air guide plate 9. The outer wall of the driving wheel 11 is fitted with the heat dissipation fins 6, and the driving wheel 11 is used to drive the filter 5 and the heat dissipation fins 6 to rotate. The upper outer wall of the air guide plate 9 is fitted with the inner wall of the filter 5, and the lower end surface of the air guide plate 9 is arc-shaped. There is an air outlet 901 between the air guide plate 9 and the motor 1, and the position of the air outlet 901 corresponds to the position of the scraper 7. The scraper 7 is arc-shaped, and an airflow guide shell 12 is installed on the outer side of the heat dissipation fins 6;

[0035] The filter 5 and the heat dissipation fins 6 cooperate with the intake fan 4 under the drive of the driving wheel 11 to cool the airflow before entering the motor 1. The airflow enters the motor at a low temperature, and the low-temperature airflow has a better heat dissipation effect on the motor 1 per unit time. At the same time, the heat dissipation fins 6 carry the liquid air upward, and cooperate with the airflow to further improve the heat dissipation effect. The arrangement of the air outlet 2 and the air guide plate 9 enables the output airflow to actively clean the filter 5, thereby achieving a self-cleaning effect of the filter 5.

[0036] The inner diameter of the airflow guide housing 12 is equal to the outer diameter of the heat sink fin 6. The upper and lower ends of the airflow guide housing 12 are both provided with openings 1201. The positions of the two openings 1201 correspond to the positions of the air outlet 901 and the air inlet end 3 respectively.

[0037] A partition 1202 is installed in the middle of the lower opening 1201. The lower end surface of the partition 1202 is lower than the lower end surface of the airflow guide shell 12. The upper end of the partition 1202 is provided with a groove. The size of the groove is larger than the outer wall size of the heat dissipation fin 6.

[0038] A cylinder 902 is installed in the middle of the air outlet 901. The cylinder 902 is set horizontally. The front and rear ends of the cylinder 902 are connected to the airflow guide shell 12. There are several folding plates 903 on the outer wall of the cylinder 902. The material of the folding plate 903 is the same as that of the reed 702. The scraper 7 is mainly used to clean the dust attached to the surface of the heat dissipation fin 6 to avoid long-term adhesion and covering adhesion of the dust layer, which causes the heat dissipation fin 6 to be unable to come into direct contact with the airflow, affecting the heat exchange effect between the liquid air and the airflow. At the same time, the airflow guide shell 12 cooperates with the wind guide plate 9 to try to dissipate heat synchronously on the inside and outside of the motor 1 shell based on the Bernoulli effect, thereby further improving the heat dissipation effect of the motor.

[0039] The working principle of the present invention is as follows: there are two groups of driving wheels 11, and the two groups of driving wheels 11 are respectively arranged on both sides above the scraper 7, and each group of driving wheels 11 is driven by an electric motor, and the intake fan 4 is driven by a separate electric motor, and the intake fan 4 rotates under the action of the electric motor, and the intake fan 4 in the rotating state generates a unidirectional airflow from bottom to top inside the motor 1, and the airflow enters the motor 1 from the air intake end 3. During the airflow passing through the motor 1, the airflow absorbs the heat generated by the operation of the motor 1 and leaves from the air outlet end 2, wherein the intake fan 4 is arranged below the inner wall of the heat dissipation fin 6, and during the airflow is formed below the air intake end 3, the airflow will pass through the surface of the heat dissipation fin 6, and the heat dissipation fin 6 cools the airflow by absorbing the heat inside the air, and the cooled airflow is directly passed into the motor 1, and then the airflow leaves from the gap between the motor 1 and the air guide plate 9;

[0040] The outer wall of the heat dissipation fin 6 is in contact with the outer wall of the driving wheel 11. When the motor is working, the driving wheel 11 drives the heat dissipation fin 6 to rotate with the center of the motor 1 as the center of a circle. Since the heat dissipation fin 6 is hollow and a sufficient amount of liquid air is provided inside the heat dissipation fin 6, the inner wall of the heat dissipation fin 6 is in contact with the outer wall of the motor 1. When the motor 1 is working, the heat dissipation fin 6 and the intake fan 4 rotate synchronously. The heat generated by the motor 1 is absorbed by the heat dissipation fin 6. When the heat dissipation fin 6 rotates, the liquid air gathers under the hollow cavity 601 under the action of gravity. The capillary layer 602 rotates synchronously with the heat dissipation fin 6. When the capillary layer 602 passes through the liquid air gathering area, the capillary layer 602 will carry a sufficient amount of liquid air to rise. The hydraulic air evaporates by absorbing the heat generated during the operation of the motor 1, further accelerating the heat loss inside the motor 1.

[0041] There are two notches 8 on the scraper 7, the inner wall size of one of the notches 8 matches the outer wall size of the heat sink fin 6, and the inner wall size of the notch 8 on the other side of the scraper 7 is larger than the outer wall size of the heat sink fin 6. The driving wheel 11 drives the heat sink fin 6 to rotate, and then relative movement occurs between the heat sink fin 6 and the scraper 7. When the heat sink fin 6 forms a relative movement with respect to the notch 8 of the same size, the notch 8 scrapes off the dust on the surface of the heat sink fin 6, and the scraped dust gathers under the notch 8. Since a spring shaft 701 and a spring leaf 702 are installed under the notch 8, and a protrusion 603 is provided on the surface of the filter 5 in an annular shape, the outer wall surface of the protrusion 603 The filter 5 is arc-shaped. Due to the arrangement of the protrusion 603, there is a thickness difference on the surface of the filter 5. When the spring 702 contacts the protrusion 603 in the moving state, the protrusion 603 pushes the spring 702 to deflect with the spring shaft 701 as the center until the protrusion 603 completely breaks contact with the deflected spring 702. At this time, the elastic potential energy accumulated in the spring shaft 701 is released, driving the spring 702 to deflect. During the deflection, the spring 702 ejects the dust accumulated under the notch 8, thereby separating the dust from the scraper 7. The spring 702 is made of elastic material to ensure that the end surface of the spring 702 always fits the outer wall surface of the filter 5 and the heat dissipation fin 6.

[0042] Two groups of drive wheels 11 are provided, and the two groups of drive wheels 11 are respectively provided on both sides above the scraper 7. Each group of drive wheels 11 is driven by an electric motor, and the air intake fan 4 is driven by a separate electric motor. At the same time, the rotation directions of the two groups of drive wheels 11 are opposite. Each heat dissipation fin 6 is connected to a drive wheel 11, and two adjacent heat dissipation fins 6 are respectively connected to different groups of drive wheels 11. The drive wheels 11 drive the heat dissipation fins 6 to rotate when driven by the motor. Since the heat dissipation fins 6 are hollow, during the rotation of the heat dissipation fins 6, the capillary layer 602 drives the liquid air to rise, thereby achieving the phenomenon of liquid air rising on both sides of the motor 1, so as to achieve the same heat dissipation effect on both sides of the motor 1;

[0043] There are two rotation modes between the heat sink fins 6, which cooperate with the notches 8. When each area of ​​the heat sink fins 6 passes through the notches 8 twice during one rotation, when the area on the heat sink fins 6 passes through the notches 8 during the rising period, the outer wall size of the notches 8 matches the size of the heat sink fins 6, and the notches 8 restrict dust on the surface of the heat sink fins 6 to below the scraper 7. When the area on the heat sink fins 6 passes through the notches 8 during the descending period, the outer wall size of the notches 8 is larger than the size of the heat sink fins 6.

[0044] An air guide plate 9 is provided above the air outlet end 2. The air guide plate 9 cooperates with the housing of the motor 1 to limit the air outlet area of ​​the air outlet end 2, so that the airflow leaves from the air outlets 901 on the left and right sides of the air guide plate 9. At the same time, the position of the air outlet 901 corresponds to the position of the scraper 7, that is, the output direction of the airflow at the air outlet 901 is the side where the reed 702 is located. The air outlet 901 continuously outputs airflow to the outside. At the same time, the reed 702 cleans the dust attached to the surface of the heat dissipation fin 6, so that the dust is separated from the heat dissipation fin 6 and the filter 5, and the separated dust leaves under the influence of the airflow. The lower end of the air guide plate 9 is arc-shaped to reduce the loss of kinetic energy of the airflow during the direction change. After leaving the air outlet 901, the airflow needs to pass through the filter 5. During the process of passing through the filter 5, the airflow cleans the dust stuck in the pores of the filter 5.

[0045] The positions of the two openings 1201 correspond to the positions of the air outlet 901 and the air inlet end 3 respectively. The outer wall of the heat dissipation fin 6 is installed with an air flow guide shell 12. The air flow guide shell 12 cooperates with the shell of the motor 1 to form an air flow channel. At the same time, the heat dissipation fin 6 is located inside the air flow channel. The upper and lower ends of the air flow guide shell 12 are provided with openings 1201. The setting of the opening 1201 provides an input port and an output port for the air flow. The opening 1201 located at the top is the air flow output end, and the opening 1201 located at the bottom is the air flow input end. The positions of the air flow output ends correspond to the positions of the air outlet 901 respectively. Since the air flow output from the air outlet 901 is determined by the working state The air is generated by the intake fan 4 in the state, and the air flow continuously absorbs the heat generated during the operation of the motor 1 during the movement, so that the air flow output by the air outlet 901 has high-speed and high-temperature characteristics. The air flow output by the air outlet 901 passes above the air flow output end. According to the Bernoulli effect, there is a pressure difference between the air flow output end and the air flow input end. The area above the air flow output end is a low-pressure area, and the area above the air flow input end is a normal-pressure area. Under the action of the pressure difference, the air forms a unidirectional airflow inside the air flow channel. The source of the air flow is the air inside the external environment. When the air flow passes through the heat sink fins 6, the area of ​​the heat sink fins 6 that is higher than the air flow temperature is cooled;

[0046] A partition 1202 is provided at the airflow input end. The width of the partition 1202 is the same as that of the air inlet end 3. Since the lower end surface of the partition 1202 is lower than the lower end surface of the airflow guide shell 12, a groove is provided at the upper end of the partition 1202. The size of the groove is larger than the outer wall size of the heat dissipation fin 6. The size of the partition 1202 is set to separate the airflow entering the air inlet end 3 from the airflow entering the airflow input end, thereby preventing the air intake fan 4 from forming a high-speed airflow near the airflow input end, resulting in the air pressure at the airflow input end and the air pressure at the airflow output end being balanced, thereby affecting the heat dissipation effect of the motor 1;

[0047] The air flow enters the interior of the motor 1 from the air inlet end 3. Before entering the motor 1, the air flow needs to pass through the filter 5 below, so that the dust carried by the air flow is restricted in the pores of the filter 5 under the action of the air flow. A cylinder 902 and a folding plate 903 are provided at the air outlet 901. The size of the folding plate 903 matches the size of the pore, and the position of the folding plate 903 corresponds to the position of the pore. Due to the existence of the pores, the folding plate 903 squeezes out the dust inside the pores during the rotation of the filter 5, thereby avoiding insufficient air flow intensity to clean the dust stuck in the pores.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An explosion-proof three-phase asynchronous motor with efficient heat dissipation function, comprising a motor (1), characterized in that: The upper and lower ends of the motor (1) are respectively provided with an air outlet (2) and an air inlet (3); an air inlet fan (4) is installed in the middle of the air inlet (3); a filter (5) is installed on the outer side of the motor (1); a heat sink fin (6) is installed on one side of the filter (5); a scraper (7) is installed on the upper end of the motor (1); notches (8) are installed on both sides of the scraper (7); the notch (8) on one side is in contact with the heat sink fin (6); and a wind guide plate (9) is installed on the upper end of the air outlet (2); A driving wheel (11) is installed at the upper end of the air guide plate (9), the outer wall of the driving wheel (11) is in contact with the heat dissipation fins (6), and the driving wheel (11) is used to drive the filter screen (5) and the heat dissipation fins (6) to rotate.

2. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 1 is characterized in that: The filter screen (5) and the heat dissipation fins (6) are both annular in shape; the heat dissipation fins (6) are hollow in structure; the interior of the heat dissipation fins (6) includes a hollow cavity (601) and a capillary layer (602); the capillary layer (602) is located outside the hollow layer (601); the outer wall of the capillary layer (602) is in contact with the inner wall of the heat dissipation fins (6); and liquid air is stored inside the hollow cavity (601).

3. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 2 is characterized in that: A plurality of protrusions (603) are arranged on the outside of the filter screen (5); a spring shaft (701) is installed on one side of the scraper (7); a spring leaf (702) is installed on one side of the spring shaft (701); the outer wall of the spring leaf (702) is in contact with the protrusion (603); and the length of the spring leaf (702) is greater than the length of the notch (8).

4. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 3 is characterized in that: The combination of the filter (5) and the heat dissipation fins (6) is provided in a plurality of groups, the number of the driving wheels (11) is the same as the number of the heat dissipation fins (6), the heat dissipation fins (6) in each group are connected to a single driving wheel (11), the driving wheel (11) is provided with two rotation modes, the driving wheels (11) are provided with two groups, each heat dissipation fin (6) is connected to one of the driving wheels (11), and two adjacent heat dissipation fins (6) are respectively connected to driving wheels (11) of different groups.

5. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 4 is characterized in that: The upper outer wall of the air guide plate (9) is in contact with the inner wall of the filter screen (5); the lower end surface of the air guide plate (9) is arc-shaped; an air outlet (901) is provided between the air guide plate (9) and the motor (1); the position of the air outlet (901) corresponds to the position of the scraper (7); the scraper (7) is arc-shaped; and an airflow guide shell (12) is installed on the outer side of the heat dissipation fin (6).

6. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 5, characterized in that: The inner diameter of the airflow guide shell (12) is equal to the outer diameter of the heat dissipation fin (6), and openings (1201) are provided at both upper and lower ends of the airflow guide shell (12), and the positions of the two openings (1201) correspond to the positions of the air outlet (901) and the air inlet end (3), respectively.

7. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 6 is characterized in that: A partition (1202) is installed in the middle of the opening (1201) below, the lower end surface of the partition (1202) is lower than the lower end surface of the airflow guide shell (12), and a groove is provided at the upper end of the partition (1202), the size of the groove is larger than the outer wall size of the heat dissipation fin (6).

8. The explosion-proof three-phase asynchronous motor with high-efficiency heat dissipation function according to claim 7 is characterized in that: A cylinder (902) is installed in the middle of the air outlet (901), and the cylinder (902) is arranged horizontally. The front and rear ends of the cylinder (902) are connected to the airflow guide shell (12), and a plurality of folding plates (903) are arranged on the outer wall of the cylinder (902).

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