Three-phase asynchronous motor with intelligent protection adjustment function

Abstract

The invention relates to the technical field of three-phase asynchronous motors, and discloses a three-phase asynchronous motor with an intelligent protection and adjustment function, which comprises a three-phase asynchronous motor, a protection assembly is arranged on the outer side of the three-phase asynchronous motor, and a plurality of groups of heat dissipation fins are arranged on the outer side of the three-phase asynchronous motor. A gap is reserved between the protection assembly and the heat dissipation fins, a heat dissipation assembly is rotatably installed on the outer side of a motor shaft of the three-phase asynchronous motor, sliding fit between an arc-shaped heat dissipation plate and an arc-shaped barrier plate is utilized, electromagnetic force of a junction box and magnetic linkage of electromagnetic strips are combined, when the motor is not powered on, the barrier plate naturally falls down, and heat dissipation grooves of the arc-shaped heat dissipation plate and the arc-shaped barrier plate are completely overlapped and opened; non-shielding natural convection is realized by means of a large-area hollow structure; during power-on operation, electromagnetic force adsorbs the barrier plate to slide upwards, the heat dissipation grooves are blocked through precise dislocation, and fan blades driven by a motor shaft are matched to directionally blow gaps between the protection assembly and the heat dissipation fins, so that a forced flow guide air channel is formed, and air flow is prevented from escaping from the heat dissipation grooves.

Description

Technical Field

[0001] This invention relates to the field of three-phase asynchronous motor technology, and in particular to a three-phase asynchronous motor with intelligent protection and adjustment functions. Background Technology

[0002] Three-phase asynchronous motors, as key power equipment in the industrial field, are widely used in various production machinery, such as fans, pumps, compressors, and conveyor belts. Their working principle is based on the law of electromagnetic induction. When the stator windings are connected to a three-phase AC power supply, a rotating magnetic field is generated. This magnetic field cuts the rotor windings, inducing an electromotive force and current in the rotor windings, which in turn generates electromagnetic torque, driving the rotor to rotate and realizing the conversion of electrical energy into mechanical energy. Regarding protection, traditional motors have limited protection methods. In the face of overload conditions, they often rely solely on simple devices such as fuses for protection. When the load suddenly increases, the current exceeds the fuse's limit. When the circuit is at its rated value, the fuse blows to cut off the circuit. However, this method is relatively slow. Before the fuse blows, the motor may have already generated high heat due to short-term overcurrent, which can damage the winding insulation. For overheat protection, traditional motors often use temperature relays, which are installed near the motor windings. When the temperature rises to the set value, the temperature relay will activate and cut off the control circuit. However, temperature relays can usually only monitor local temperatures. In terms of phase loss protection, traditional motors lack effective real-time monitoring methods. When one phase of the three-phase power supply is broken, the motor may continue to run for a period of time.

[0003] For example, Chinese Patent CN213072402U discloses a three-phase asynchronous motor with a stator protection structure. When the three-phase motor body is in use, pulling the pull rod can move the protective shell. When the pull rod causes the limiting block to abut against the surface of the fixed plate, the limiting block can retract into the pull rod. When the limiting block moves away from the interior of the fixed plate, the elastic force of the first spring can move the limiting block out of the pull rod, thus limiting the pull rod. The three-phase motor body can rotate the motor shaft. When the motor shaft rotates, it can drive the second gear to rotate. The second gear can make four sets of first gears rotate simultaneously. When the first gears rotate, it can prevent the motor shaft from shaking during rotation. When the motor shaft is not in use, pressing the limiting block can retract the limiting block into the pull rod. At this time, the elastic force of the second spring can push the slider to move inside the protective frame, thereby causing the two sets of protective shells to abut against each other and protect the motor shaft.

[0004] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: existing motors mostly adopt a design with fixed heat dissipation fins and independent protective nets. Although the protective nets can block impurities, they will block 30%-50% of the heat dissipation area, resulting in a decrease in natural heat dissipation efficiency. If the protective nets are removed to improve heat dissipation, the heat dissipation fins are prone to dust accumulation and blockage, and the heat dissipation capacity can decrease by more than 40% after long-term operation. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the heat dissipation efficiency and dust prevention effect of the heat sink fins are difficult to improve simultaneously in the existing technology. To this end, we propose a three-phase asynchronous motor with intelligent protection and adjustment function.

[0006] To achieve the above objectives, this application adopts the following technical solution: a three-phase asynchronous motor with intelligent protection and adjustment function, comprising a three-phase asynchronous motor, a protective component disposed on the outside of the three-phase asynchronous motor, a junction box fixedly installed at the upper end of the three-phase asynchronous motor, multiple sets of heat dissipation fins disposed on the outside of the three-phase asynchronous motor, a motor shaft installed at the drive end of the three-phase asynchronous motor, a gap reserved between the protective component and the heat dissipation fins, and a heat dissipation component rotatably mounted on the outside of the motor shaft. When the three-phase asynchronous motor is in use, the heat dissipation component dissipates heat from the heat dissipation fins, and the protective component protects the outside of the three-phase asynchronous motor while restricting the airflow direction, guiding air to flow more orderly over the heat dissipation fins, enhancing air convection, and improving heat dissipation efficiency. The protective component can, to a certain extent, prevent dust, fibers, oil stains, and other impurities from adhering to the heat dissipation fins. Excessive accumulation of these impurities will affect the heat exchange efficiency between the heat dissipation fins and the air, reducing the heat dissipation effect. The protective component allows the motor to operate in a relatively clean environment, ensuring that the heat dissipation fins work efficiently for a long time.

[0007] Preferably, a square groove is provided on the outside of the junction box, and the square groove matches the protective component.

[0008] Preferably, the heat dissipation assembly includes a connecting plate, inside which a rotating gear 1 is rotatably mounted. A motor shaft passes through and is fixedly connected to the rotating gear 1. Multiple sets of rotating gears 2 are meshed on the outer side of the rotating gear 1. The rotating gears 2 are rotatably connected to the connecting plate. A fan blade is fixedly mounted on one side of the rotating gear 2. Multiple sets of circular holes are opened on one side of the connecting plate, and the circular holes match the fan blades. When the three-phase asynchronous motor is working, the motor shaft drives the rotating gear 1 to rotate. During the rotation of the rotating gear 1, the multiple sets of rotating gears 2 and the fan blades rotate. By blowing air into the gap, the heat dissipation efficiency of the heat dissipation fins is improved. At the same time, by restricting the airflow direction through the gap, the air can be guided to flow more orderly through the heat dissipation fins, enhancing air convection and improving heat dissipation efficiency.

[0009] Preferably, the position of the fan blades and the gap are aligned.

[0010] Preferably, the protective assembly includes two sets of fixed shells, both of which are fixedly connected to the three-phase asynchronous motor. An arc-shaped shell is installed through one side of each of the two sets of fixed shells. An arc-shaped heat sink is slidably installed inside the arc-shaped shell. One end of the arc-shaped heat sink protrudes from the arc-shaped shell and is fixedly installed with a connecting plate. The connecting plate matches the square slot. Before the three-phase asynchronous motor is installed, the arc-shaped heat sink is retracted inside the arc-shaped shell, which facilitates the inspection personnel to inspect the exterior of the three-phase asynchronous motor. When the three-phase asynchronous motor is installed and used, the arc-shaped heat sink extends to protect the exterior of the three-phase asynchronous motor.

[0011] Preferably, the interior of the fixed housing is provided with a sliding groove filled with coolant, and a piston plate is slidably installed inside the sliding groove. A connecting column is fixedly installed on the inner wall of the fixed housing, and the connecting column is slidably connected to the piston plate. An elastic element is sleeved on the outer side of the connecting column. The upper end of the elastic element is fixedly connected to the upper end of the inner wall of the fixed housing, and the lower end of the elastic element is fixedly connected to the upper end of the piston plate. Multiple sets of buffer legs are fixedly installed on the lower end of the piston plate, and the buffer legs are slidably connected to the connecting column.

[0012] Preferably, a fixing plate is fixedly installed on the outer side of the fixed shell. Multiple sets of bolts are threaded onto the fixing plate. When installing the three-phase asynchronous motor, under the action of gravity, the buffer legs and connecting columns move upward and squeeze the piston plate, causing the piston plate to slide inside the slide groove. By squeezing the coolant inside the slide groove, the arc-shaped heat sink plate is driven to extend under the squeezing action of the coolant. The connecting plate is locked and limited by the square groove. Then, the fixing plate is fixed in the corresponding position by bolts, completing the installation of the three-phase asynchronous motor. When the three-phase asynchronous motor vibrates or is subjected to external impact, the elastic element is kept in a compressed state under the fixing of the bolts. When slight vibration occurs, the small deformation of the elastic element itself absorbs energy, initially weakening the vibration amplitude.

[0013] Preferably, the cavity area inside the groove is the same as the cavity area inside the arc-shaped shell.

[0014] Preferably, an arc-shaped baffle plate is slidably arranged inside the arc-shaped heat sink. Both the arc-shaped heat sink and the arc-shaped baffle plate have multiple sets of heat dissipation grooves. The length of the arc-shaped baffle plate is slightly shorter than the length of the arc-shaped heat sink. A square groove is provided on the connecting plate. An electromagnetic strip is fixedly installed at one end of the arc-shaped baffle plate, and the electromagnetic strip is magnetically attracted to the junction box. The electromagnetic strip matches the square groove. A limit strip is provided at the other end of the arc-shaped baffle plate. Since the arc-shaped baffle plate is initially located inside the arc-shaped heat sink and its position does not overlap with the heat dissipation grooves, in the initial unpowered state, the arc-shaped baffle plate naturally falls into the arc-shaped heat sink. At this time, the heat dissipation grooves of both are in a fully overlapping open state. The large-area hollow structure achieves efficient natural convection, allowing external airflow to circulate freely through the heat dissipation grooves, quickly carrying away the residual heat after the three-phase asynchronous motor stops, preventing residual heat accumulation from causing hidden damage to the insulation material. When the three-phase asynchronous motor is powered on, the electromagnetic force generated by the junction box causes the electromagnetic strip to quickly attract, driving the arc-shaped baffle plate along the arc-shaped heat sink. The sliding mechanism, through precise misalignment design, completely seals the heat dissipation slots. This sealed state, combined with the directional blowing of the fan blades through the gaps, forms a forced airflow channel. Airflow that might have escaped from the heat dissipation slots is confined within the enclosed space, forcing the airflow to flow at high speed along the surface of the three-phase asynchronous motor. For the heat dissipation fins, the flow velocity is increased by more than 90% compared to natural heat dissipation, effectively solving the problems of airflow dispersion and localized heat dissipation dead zones in open heat dissipation. When the three-phase asynchronous motor is running under high load, the concentrated airflow through the sealed heat dissipation slots enhances heat dissipation efficiency and avoids heat dissipation performance loss caused by airflow turbulence. After shutdown, the heat dissipation channel automatically opens, utilizing ambient airflow for continuous cooling, completing the waste heat discharge without additional energy consumption. At the same time, the sealed state also prevents dust and moisture from entering the interior through the heat dissipation slots when the three-phase asynchronous motor is running, which is equivalent to adding a dynamic protective barrier to the motor. In harsh environments such as dusty and humid conditions, it can significantly reduce the risk of winding short circuits and component corrosion, taking into account both heat dissipation performance and equipment protection.

[0015] The technical effects and advantages of this invention are as follows:

[0016] In this invention, the sliding cooperation between the arc-shaped heat sink and the arc-shaped barrier plate, combined with the electromagnetic force of the junction box and the magnetic linkage of the electromagnetic strip, allows the barrier plate to fall naturally when the motor is not powered on, and the heat sinks of both plates to fully overlap and open. The large-area hollow structure enables unobstructed natural convection. When powered on, the electromagnetic force attracts the barrier plate to slide up, and the heat sink is precisely blocked by misalignment. The fan blades driven by the motor shaft blow air through the gap between the protective components and the heat sink fins, forming a forced airflow channel to prevent airflow from escaping from the heat sink and increasing the flow rate by more than 30%. At the same time, the coolant in the fixed shell automatically pushes the arc-shaped heat sink to extend and form a protective barrier through hydraulic transmission during installation. During operation, the elastic element and coolant damping provide double buffering of vibration, which not only solves the problem of traditional fixed protective nets blocking the heat dissipation area, but also prevents the heat sink fins from accumulating dust and clogging through the dynamic opening and closing structure. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the device of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the three-phase asynchronous motor structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall structure of the device of the present invention;

[0022] Figure 5 This is a schematic diagram of the protective component and heat dissipation component of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the heat dissipation component of the present invention;

[0024] Figure 7 This is a schematic diagram of the protective component structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the internal structure of the protective component of the present invention;

[0026] Figure 9 This is a schematic diagram of the internal structure of the arc-shaped shell of the present invention. Figure 1 ;

[0027] Figure 10 This is a schematic diagram of the internal structure of the arc-shaped shell of the present invention. Figure 2 ;

[0028] Figure 11 This is a schematic diagram of the internal structure of the arc-shaped heat sink of the present invention. Figure 1 ;

[0029] Figure 12 This is a schematic diagram of the internal structure of the arc-shaped heat sink of the present invention. Figure 2 .

[0030] Legend: 1. Three-phase asynchronous motor; 11. Junction box; 111. Square slot one; 12. Heat dissipation fins; 13. Motor shaft; 14. Clearance; 15. Heat dissipation assembly; 151. Connecting plate; 1511. Round hole; 152. Rotating gear one; 153. Rotating gear two; 154. Fan blade; 2. Protective assembly; 21. Fixed shell; 211. Slide groove; 212. Piston plate; 213. Connecting column; 214. Elastic element; 215. Buffer leg; 216. Fixed plate; 217. Bolt; 22. Arc-shaped shell; 221. Arc-shaped heat dissipation plate; 2211. Heat dissipation groove; 222. Connecting plate; 2221. Square slot two; 223. Arc-shaped barrier plate; 2231. Electromagnetic strip; 2232. Limiting strip. Detailed Implementation

[0031] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0032] Reference Figure 1-5 As shown, the present invention provides a technical solution: a three-phase asynchronous motor with intelligent protection and adjustment function, including a three-phase asynchronous motor 1, a protective component 2 disposed on the outside of the three-phase asynchronous motor 1, a junction box 11 fixedly installed on the upper end of the three-phase asynchronous motor 1, multiple sets of heat dissipation fins 12 disposed on the outside of the three-phase asynchronous motor 1, a motor shaft 13 installed on the drive end of the three-phase asynchronous motor 1, a gap 14 reserved between the protective component 2 and the heat dissipation fins 12, and a heat dissipation component 15 rotatably mounted on the outside of the motor shaft 13. When the three-phase asynchronous motor 1 is in use, it dissipates heat... Component 15 dissipates heat from the heat sink 12 and protects the outside of the three-phase asynchronous motor 1 through the protective component 2. At the same time, it restricts the direction of airflow, which can guide the air to flow more orderly over the heat sink 12, enhance air convection, and improve heat dissipation efficiency. The protective component 2 can prevent dust, fibers, oil and other impurities from adhering to the heat sink 12 to a certain extent. Excessive accumulation of these impurities will affect the heat exchange efficiency between the heat sink 12 and the air and reduce the heat dissipation effect. The protective component 2 allows the motor to operate in a relatively clean environment and ensures that the heat sink 12 works efficiently for a long time.

[0033] Reference Figure 3 As shown in this embodiment: a square groove 111 is provided on the outside of the junction box 11, and the square groove 111 matches the protective component 2.

[0034] Reference Figure 5-6As shown in this embodiment: the heat dissipation assembly 15 includes a connecting plate 151, a rotating gear 152 is rotatably mounted inside the connecting plate 151, the motor shaft 13 passes through the rotating gear 152 and is fixedly connected to it, multiple sets of rotating gears 153 are meshed on the outer side of the rotating gear 152, the rotating gears 153 are rotatably connected to the connecting plate 151, a fan blade 154 is fixedly mounted on one side of the rotating gear 153, and multiple sets of circular holes 1511 are opened on one side of the connecting plate 151, the circular holes 1511 are matched with the fan blade 154. When the three-phase asynchronous motor 1 is working, the motor shaft 13 drives the rotating gear 152 to rotate, and the rotating gear 152 drives the multiple sets of rotating gears 153 and the fan blade 154 to rotate. By blowing air into the gap 14 to dissipate heat, the heat dissipation efficiency of the heat dissipation fins 12 is improved. At the same time, by restricting the direction of airflow through the gap 14, the air can be guided to flow more orderly through the heat dissipation fins 12, enhancing air convection and improving heat dissipation efficiency.

[0035] Reference Figure 4-6 As shown in this embodiment, the position of the fan blade 154 is aligned with the gap 14.

[0036] Reference Figure 1-2 , Figure 4 , Figure 7 As shown in this embodiment: the protective component 2 includes two sets of fixed shells 21, both sets of fixed shells 21 are fixedly connected to the three-phase asynchronous motor 1, and an arc-shaped shell 22 is installed through one side of each set of fixed shells 21. An arc-shaped heat sink 221 is slidably installed inside the arc-shaped shell 22. One end of the arc-shaped heat sink 221 protrudes from the arc-shaped shell 22 and is fixedly installed with a connecting plate 222. The connecting plate 222 matches the square groove 111. Before the three-phase asynchronous motor 1 is installed, the arc-shaped heat sink 221 is retracted inside the arc-shaped shell 22, which facilitates the inspection personnel to inspect the exterior of the three-phase asynchronous motor 1. When the three-phase asynchronous motor 1 is installed and used, the arc-shaped heat sink 221 extends out to protect the exterior of the three-phase asynchronous motor 1.

[0037] Reference Figure 7-8 As shown in this embodiment: a sliding groove 211 is provided inside the fixed shell 21, and the sliding groove 211 is filled with coolant, which is a water-based coolant. A piston plate 212 is slidably installed inside the sliding groove 211. A connecting column 213 is fixedly installed on the inner wall of the fixed shell 21, and the connecting column 213 is slidably connected to the piston plate 212. An elastic element 214 is sleeved on the outer side of the connecting column 213. The elastic element 214 is a helical spring, and the material is 50CrVA high-strength spring steel. The upper end of the elastic element 214 is fixedly connected to the upper end of the inner wall of the fixed shell 21, and the lower end of the elastic element 214 is fixedly connected to the upper end of the piston plate 212. Multiple sets of buffer legs 215 are fixedly installed on the lower end of the piston plate 212, and the buffer legs 215 are slidably connected to the connecting column 213.

[0038] Reference Figure 8-10 As shown in this embodiment: a fixing plate 216 is fixedly installed on the outer side of the fixing shell 21. Multiple sets of bolts 217 are threaded on the fixing plate 216. When installing the three-phase asynchronous motor 1, under the action of gravity, the buffer leg 215 and the connecting column 213 move upward and squeeze the piston plate 212, causing the piston plate 212 to slide inside the slide groove 211. By squeezing the coolant inside the slide groove 211, the arc-shaped heat sink 221 is driven to extend under the squeezing action of the coolant. The connecting plate 222 is locked and limited with the square groove 111. Then, the fixing plate 216 is fixed in the corresponding position by the bolts 217, completing the installation of the three-phase asynchronous motor 1. When the three-phase asynchronous motor 1 vibrates or is subjected to external impact, the elastic element 214 is kept in a compressed state under the fixation of the bolts 217. When slight vibration occurs, the small deformation of the elastic element 214 itself absorbs energy, initially weakening the vibration amplitude.

[0039] Reference Figure 8-10 As shown in this embodiment, the cavity area inside the groove 211 is the same as the cavity area inside the arc-shaped shell 22.

[0040] Reference Figure 8-12As shown in this embodiment: an arc-shaped baffle plate 223 is slidably arranged inside the arc-shaped heat sink 221. Multiple sets of heat dissipation grooves 2211 are formed on both the arc-shaped heat sink 221 and the arc-shaped baffle plate 223. The length of the arc-shaped baffle plate 223 is slightly less than the length of the arc-shaped heat sink 221. A square groove 2221 is formed on the connecting plate 222. An electromagnetic strip 2231 is fixedly installed at one end of the arc-shaped baffle plate 223. The electromagnetic strip 2231 is magnetically attracted to the junction box 11, and the electromagnetic strip 2231 matches the square groove 2221. A limit strip 2232 is provided at the other end of the arc-shaped baffle plate 223. Due to… In its initial state, the arc-shaped baffle plate 223 is located inside the arc-shaped heat sink 221 and its position does not overlap with the heat sink 2211. In the initial unpowered state, the arc-shaped baffle plate 223 naturally falls into the arc-shaped heat sink 221, at which time the heat sinks 2211 of the two are in a fully overlapping open state. The large-area hollow structure enables efficient natural convection, allowing external airflow to flow freely through the heat sink 2211, quickly carrying away the residual heat after the three-phase asynchronous motor 1 stops, preventing residual heat accumulation from causing hidden damage to the insulation material. When the three-phase asynchronous motor 1 is powered on, the junction box 11 generates… The electromagnetic force causes the electromagnetic strip 2231 to quickly attract, driving the arc-shaped baffle plate 223 to slide upward along the arc-shaped heat sink 221. Through precise misalignment design, the heat sink 2211 is completely sealed. This closed state, combined with the directional blowing of the fan blades 154 on the gap 14, forms a forced airflow channel. The airflow that might have escaped from the heat sink 2211 is constrained within the closed space, forcing the airflow to flow at high speed along the surface of the three-phase asynchronous motor 1. The flow velocity on the heat sink fins 12 is significantly increased compared to the natural heat dissipation state, effectively solving the problems of airflow dispersion and local heat dissipation dead zones in open heat dissipation. When the stepper motor 1 is running under high load, the heat dissipation efficiency is enhanced by concentrating airflow through the closed heat dissipation slot 2211, avoiding heat dissipation efficiency loss caused by airflow turbulence. After shutdown, the heat dissipation channel is automatically opened, and the ambient airflow is used for continuous cooling. The waste heat can be discharged without additional energy consumption. At the same time, the closed state can also prevent dust and water vapor from entering the interior through the heat dissipation slot 2211 when the three-phase asynchronous motor 1 is running. It is equivalent to adding a dynamic protective barrier to the motor. In harsh environments such as dusty and humid environments, it can significantly reduce the risk of winding short circuits and component corrosion, taking into account the dual requirements of heat dissipation efficiency and equipment protection.

[0041] Working principle: When the three-phase asynchronous motor 1 is working, the motor shaft 13 drives the rotating gear 152 to rotate, which in turn drives the meshing rotating gear 153 and the fan blade 154 to rotate, directing airflow through the gap 14 between the protective component 2 and the heat dissipation fins 12. During installation, gravity squeezes the buffer support leg 215, causing the piston plate 212 to slide in the slide groove 211. The coolant pushes the arc-shaped heat dissipation plate 221 out and locks it in place with the square groove 111 of the junction box 11 via the connecting plate 222. After power is applied, the electromagnetic force of the junction box 11 attracts the electromagnetic strip 2231 of the arc-shaped baffle plate 223, causing it to slide upward and block the heat dissipation groove 2211 to form a forced air duct, increasing the flow rate by more than 30%. After the machine stops, the electromagnetic force disappears, and the arc-shaped baffle plate 223 falls back, causing the heat dissipation groove 2211 to overlap and open, achieving natural convection. At the same time, the elastic element 214 inside the fixed shell 21 dampens and buffers the vibration with the coolant, achieving dynamic coordination of heat dissipation, protection, and buffering.

[0042] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A three-phase asynchronous motor with intelligent protection and adjustment functions, characterized in that, The system includes a three-phase asynchronous motor (1), a protective component (2) is provided on the outside of the three-phase asynchronous motor (1), multiple sets of heat dissipation fins (12) are provided on the outside of the three-phase asynchronous motor (1), a motor shaft (13) is installed on the drive end of the three-phase asynchronous motor (1), a gap (14) is reserved between the protective component (2) and the heat dissipation fins (12), and a heat dissipation component (15) is rotatably installed on the outside of the motor shaft (13); The protective assembly (2) includes two sets of fixed shells (21), both sets of fixed shells (21) are fixedly connected to the three-phase asynchronous motor (1), and an arc-shaped shell (22) is installed through one side of each set of fixed shells (21). An arc-shaped heat sink (221) is slidably installed inside the arc-shaped shell (22), and one end of the arc-shaped heat sink (221) protrudes from the arc-shaped shell (22) and is fixedly installed with a connecting plate (222). An arc-shaped barrier plate (223) is slidably arranged inside the arc-shaped heat sink (221). The arc-shaped heat sink (221) and the arc-shaped barrier plate (223) are connected. Multiple sets of heat dissipation grooves (2211) are provided on the partition plate (223). The length of the arc-shaped partition plate (223) is less than the length of the arc-shaped heat dissipation plate (221). A square groove (2221) is provided on the connecting plate (222). An electromagnetic strip (2231) is fixedly installed on one end of the arc-shaped partition plate (223). The electromagnetic strip (2231) is magnetically attracted to the three-phase asynchronous motor (1). The electromagnetic strip (2231) matches the square groove (2221). A limit strip (2232) is provided on the other end of the arc-shaped partition plate (223).

2. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 1, characterized in that: The distance between two adjacent sets of heat dissipation slots (2211) is greater than their own width.

3. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 1, characterized in that: A junction box (11) is fixedly installed on the upper end of the three-phase asynchronous motor (1), and the electromagnetic strip (2231) is magnetically attracted to the junction box (11).

4. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 3, characterized in that: The junction box (11) has a square groove (111) on its outer side, which matches the connecting plate (222).

5. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 1, characterized in that: The heat dissipation assembly (15) includes a connecting plate (151). A rotating gear (152) is rotatably mounted inside the connecting plate (151). The motor shaft (13) passes through the rotating gear (152) and is fixedly connected to it. Multiple sets of rotating gears (153) are meshed on the outer side of the rotating gear (152). The rotating gears (153) are rotatably connected to the connecting plate (151). A fan blade (154) is fixedly mounted on one side of the rotating gear (153). Multiple sets of round holes (1511) are opened on one side of the connecting plate (151). The round holes (1511) match the fan blades (154).

6. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 5, characterized in that: The fan blade (154) and the gap (14) are on the same horizontal plane.

7. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 1, characterized in that: The fixed shell (21) has a groove (211) inside, and the groove (211) is filled with coolant.

8. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 7, characterized in that: A piston plate (212) is slidably installed inside the slide groove (211). A connecting column (213) is fixedly installed on the inner wall of the fixed shell (21). The connecting column (213) is slidably connected to the piston plate (212). An elastic element (214) is sleeved on the outer side of the connecting column (213). The upper end of the elastic element (214) is fixedly connected to the upper end of the inner wall of the fixed shell (21). The lower end of the elastic element (214) is fixedly connected to the upper end of the piston plate (212). Multiple sets of buffer legs (215) are fixedly installed on the lower end of the piston plate (212). The buffer legs (215) are slidably connected to the connecting column (213).

9. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 8, characterized in that: A fixing plate (216) is fixedly installed on the outside of the fixing shell (21), and multiple sets of bolts (217) are threaded on the fixing plate (216).

10. The three-phase asynchronous motor with intelligent protection and adjustment function according to claim 8, characterized in that: The internal cavity of the groove (211) has the same area as the internal cavity of the arc-shaped shell (22).

Images