High heat dissipation type permanent magnet synchronous motor

Abstract

The invention relates to the field of motors, in particular to a high heat dissipation type permanent magnet synchronous motor. Comprising a rotor, permanent magnets, ribs, a stator, a wire slot and a cooling cylinder, four permanent magnets are inserted in the rotor, three spiral ribs are arranged on the rotor, a stator screw is connected in the cooling cylinder, a circle of wire slot is arranged in the stator, a stator winding is wound on the wire slot, and the rotor is arranged in the stator winding. The motor further comprises an output shaft and key grooves, the output shaft is integrally formed on the rotor, and the two key grooves are formed in the output shaft. A plurality of circles of cooling pipes are arranged in the cooling cylinder, the cooling cylinder is connected with the water pipe through screws, and the water pipe is connected with the cooling pipes. The cooling device further comprises air outlet pipes, a sealing cylinder and air outlets, the four air outlet pipes are arranged on the cooling cylinder, the four air outlets are formed in the sealing cylinder, the air outlets are connected to the corresponding air outlet pipes in a welded mode, and dust blocking pieces are connected to the air outlets in a welded mode. And air circulation between the rotor and the stator can be accelerated.

Description

Technical Field

[0001] This invention relates to the field of electric motors, and more specifically to a high-heat-dissipation permanent magnet synchronous motor. Background Technology

[0002] A permanent magnet synchronous motor (PMSM) is a type of motor that uses permanent magnets as the rotor's magnetic field source. It is a special type of synchronous motor where the permanent magnets on the rotor generate a fixed magnetic field that moves synchronously with the magnetic field generated by the windings on the stator. The main characteristics of PMSMs are high efficiency, high power density, and high torque density. Because the magnetic field generated by the permanent magnets is constant, no additional energy supply is needed to generate the rotor magnetic field, thus resulting in high efficiency. Currently, PMSMs are commonly used in applications requiring high power output and high speed, therefore, improving their heat dissipation performance is essential. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a high heat dissipation permanent magnet synchronous motor, which has the advantage of facilitating faster air circulation between the rotor and stator.

[0004] A high-heat-dissipation permanent magnet synchronous motor includes a rotor, permanent magnets, ridges, a stator, slots, and a cooling cylinder. Four permanent magnets are inserted inside the rotor, and three spiral ridges are provided on the rotor. The stator is screwed into the inside of the cooling cylinder. A slot is provided inside the stator, and stator windings are wound on the slots. The rotor is placed inside the stator windings.

[0005] It also includes an output shaft and keyways. The output shaft is integrally formed on the rotor and is rotatably connected inside the cooling cylinder. The output shaft is provided with two keyways.

[0006] It also includes cooling pipes and water pipes. The cooling cylinder has several coils of cooling pipes, which are filled with coolant. Two water pipes are screwed onto the cooling cylinder and connected to the cooling pipes. The coolant flows into the cooling pipes from the bottom water pipes and flows out of the cooling pipes from the top water pipes.

[0007] It also includes air outlet pipes, sealing cylinders and air outlets. The cooling cylinder is equipped with four air outlet pipes, and the sealing cylinder is equipped with four air outlets. The air outlets are welded to the corresponding air outlet pipes, and dust baffles are welded to the air outlets. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0009] Figure 1 Schematic diagram of a high-heat-dissipation permanent magnet synchronous motor Figure 1 ;

[0010] Figure 2 Schematic diagram of a high-heat-dissipation permanent magnet synchronous motor Figure 2 ;

[0011] Figure 3 Schematic diagram of the output shaft Figure 1 ;

[0012] Figure 4 Schematic diagram of the output shaft Figure 2 ;

[0013] Figure 5 Schematic diagram of the dustproof net structure Figure 1 ;

[0014] Figure 6 Schematic diagram of the dustproof net structure Figure 2 ;

[0015] Figure 7 Schematic diagram of the sealing cap Figure 1 ;

[0016] Figure 8 Schematic diagram of the sealing cap structure Figure 2 ;

[0017] Figure 9 Schematic diagram of the fan housing Figure 1 ;

[0018] Figure 10 Schematic diagram of the fan housing Figure 2 .

[0019] In the diagram: Output shaft 101; Keyway 102; Rotor 103; Permanent magnet 104; Protrusion 105; Stator 106; Wire groove 107; Fan shaft 108;

[0020] Dustproof net 201; base frame 202; baffle post 203; cooling cylinder 204; shaft hole 205; cooling pipe 206; water pipe 207; air outlet pipe 208;

[0021] 301 Sealing cover; 302 Orifice plate; 303 Spring; 304 Sliding column; 305 Sealing cylinder; 306 Bracket; 307 Circular groove; 308 Air outlet; 309 Limiting plate;

[0022] Fan housing 401; clamping plate 402; screw 403; fan 404; baffle 405; round hole 406; dust cover 407; air inlet 408. Detailed Implementation

[0023] like Figure 3-6 As shown, this example allows for faster airflow between the rotor 103 and the stator 106.

[0024] The high-heat-dissipation permanent magnet synchronous motor includes a rotor 103, permanent magnets 104, ridges 105, a stator 106, slots 107, and a cooling cylinder 204. Four permanent magnets 104 are inserted into the rotor 103, and three spiral ridges 105 are provided on the rotor 103. The stator 106 is screwed into the cooling cylinder 204, and a slot 107 is provided inside the stator 106. The stator winding is wound on the slot 107. The rotor 103 is placed inside the stator winding. When the stator winding is energized, it can generate a rotating magnetic field. The magnetic field of the permanent magnets 104 in the rotor 103 interacts with the rotating magnetic field of the stator winding to generate torque, which drives the rotor 103 and the ridges 105 to rotate. The ridges 105 can generate directional airflow, thereby facilitating faster air circulation between the rotor 103 and the stator 106.

[0025] like Figure 3-6 As shown, this example can facilitate the output shaft 101 to drive the driven member to rotate.

[0026] Since the high heat dissipation permanent magnet synchronous motor also includes an output shaft 101 and a keyway 102, the output shaft 101 is integrally formed on the rotor 103. The output shaft 101 is rotatably connected in the cooling cylinder 204. The output shaft 101 is provided with two keyways 102, so that the keyways 102 can be keyed to the driven member on the output shaft 101. Thus, the rotor 103 can drive the output shaft 101 and the driven member to rotate together, thereby achieving the effect of facilitating the output shaft 101 to drive the driven member to rotate.

[0027] like Figure 3-6 As shown, this example can effectively enhance the heat dissipation capability of stator 106.

[0028] Since the high heat dissipation permanent magnet synchronous motor also includes cooling pipes 206 and water pipes 207, several rings of cooling pipes 206 are provided inside the cooling cylinder 204. Cooling pipes 206 are filled with coolant. Two water pipes 207 are screwed to the cooling cylinder 204 and connected to the cooling pipes 206. Coolant flows into the cooling pipes 206 from the bottom water pipes 207 and flows out of the cooling pipes 206 from the top water pipes 207. The coolant flows through the cooling pipes 206 inside the cooling cylinder 204, which can absorb the heat on the stator 106 screwed to the cooling cylinder 204, thereby enhancing the heat dissipation capacity of the stator 106.

[0029] like Figure 3-8 As shown, this example can achieve the effect of expelling hot air from the stator 106.

[0030] Since the high heat dissipation permanent magnet synchronous motor also includes an air outlet 208, a sealing cylinder 305, and an air outlet 308, the cooling cylinder 204 is provided with four air outlets 208, and the sealing cylinder 305 is provided with four air outlets 308. The air outlets 308 are welded to the corresponding air outlets 208, and dust baffles are welded to the air outlets 308. Thus, the airflow generated by the rotation of the convex 105 can be introduced from the air outlets 208 into the air outlets 308, and the hot air is discharged from the air outlets 308. The dust baffles can prevent dust from entering the motor from the air outlets 308, thereby achieving the effect of discharging the hot air in the stator 106.

[0031] like Figure 7-10 As shown, this example allows for easy disassembly of the fan housing 401.

[0032] The high-heat-dissipation permanent magnet synchronous motor also includes a limiting plate 309, a fan box 401, a clamping plate 402, and screws 403. Four limiting plates 309 are welded to the sealing cylinder 305, and eight clamping plates 402 are welded to the fan box 401. Each pair of clamping plates 402 forms a group, and a limiting plate 309 is inserted between each group of clamping plates 402. The limiting plates 309 and clamping plates 402 are provided with threaded holes corresponding to their positions. Four screws 403 are inserted into the corresponding threaded holes of the limiting plates 309 and clamping plates 402, thereby fixing the limiting plates 309 and clamping plates 402 together, and thus fixing the fan box 401 to the sealing cylinder 305. The screws 403 can be removed to separate the fan box 401 from the sealing cylinder 305, thereby achieving the effect of easy disassembly of the fan box 401.

[0033] like Figure 3-10 As shown, this example demonstrates how to easily combine air cooling and water cooling.

[0034] The high-heat-dissipation permanent magnet synchronous motor also includes a fan shaft 108, a shaft hole 205, a fan 404, a baffle 405, a round hole 406, a dust cover 407, and an air inlet 408. The fan shaft 108 is integrally formed on the rotor 103, and a clamping groove is provided on the fan shaft 108. The cooling cylinder 204 has a shaft hole 205, and the fan shaft 108 is rotatably connected within the shaft hole 205. A dust cover 407 is welded to the fan housing 401, and a round hole 406 is provided on the dust cover 407. The fan 404 is rotatably connected within the round hole 406. Inside, the fan 404 rotates in the opposite direction to the convex ridge 105. The dust cover 407 is provided with multiple air inlets 408, and dustproof plates are welded to the air inlets 408. When the rotor 103 rotates, it can drive the fan shaft 108 and the fan 404 to rotate together, thereby introducing air between the cooling cylinder 204 and the sealing cylinder 305. The cooling cylinder 204 can then cool the air, increasing the working area of ​​the cooling cylinder 204, and thus blowing air into the motor for cooling, thereby achieving the effect of combining air cooling and water cooling.

[0035] like Figure 3-8 As shown, this example demonstrates how to remove dust from the blown-in air.

[0036] Since the high heat dissipation permanent magnet synchronous motor also includes a dustproof net 201 and a base frame 202, the base frame 202 is rotatably connected between the cooling cylinder 204 and the sealing cylinder 305. The base frame 202 is provided with four support pillars, and several dustproof nets 201 are screwed to the support pillars. After the air is introduced between the cooling cylinder 204 and the sealing cylinder 305, it must pass through the dustproof net 201. The dustproof net 201 can adsorb the dust in the air, thereby achieving the effect of removing the dust in the air, reducing the accumulation of dust on the stator winding of the stator 106, and enhancing the heat dissipation capacity.

[0037] like Figure 3-8 As shown, this example can facilitate the introduction of cooling air into the stator 106.

[0038] Since the high heat dissipation permanent magnet synchronous motor also includes a sealing cover 301, the sealing cover 301 is threadedly connected to the sealing cylinder 305, and the output shaft 101 is rotatably connected inside the sealing cover 301. The sealing cover 301 has a curved surface and a frustum inside. The frustum of the sealing cover 301 corresponds to the position of the rotor 103. After the air is introduced between the cooling cylinder 204 and the sealing cylinder 305, the curved surface of the sealing cover 301 can guide the cooled air along the frustum between the rotor 103 and the stator 106, thereby achieving the effect of facilitating the introduction of cooled air into the stator 106.

[0039] like Figure 7-8 As shown, this example can achieve the effect of easily fixing the sealing cap 301 to the sealing cylinder 305.

[0040] Since the high heat dissipation permanent magnet synchronous motor also includes a perforated plate 302, a spring 303, and a sliding column 304, the sealing cover 301 is provided with two perforated plates 302, the sealing cylinder 305 is provided with two sliding plates, and the two sliding columns 304 are slidably connected in the corresponding sliding plates. The spring 303 is wound around the sliding column 304, one end of the spring 303 is pressed tightly on the sliding plate, and the other end of the spring 303 is pressed tightly on the sliding column 304. The sliding column 304 is provided with a plug, which can be inserted into the perforated plate 302. Then the spring 303 can push the sliding column 304 and the plug to move inward together, and then the plug is inserted into the perforated plate 302, which can fix the position of the sealing cover 301 and prevent the sealing cover 301 from rotating, thereby achieving the effect of easily fixing the sealing cover 301 to the sealing cylinder 305.

[0041] like Figure 5-10 As shown, this example allows for easy removal of the dust filter 201.

[0042] The high-heat-dissipation permanent magnet synchronous motor also includes a baffle 203, a bracket 306, and a circular groove 307. Four baffles 203 are welded to the base frame 202. A circular plate is provided on the baffle 203. A bracket 306 is welded to the sealing cylinder 305. The bracket 306 is provided with four circular grooves 307. Each circular groove 307 communicates with a sliding groove. The baffles 203 can be inserted into the sliding groove. The size of the circular plate is the same as that of the circular groove 307. When the baffle 203 is inserted into the sliding groove, the circular plate blocks the bottom of the bracket 306 to prevent the dustproof net 201 from falling off the bracket 306. After rotating the base frame 202, the position of the circular plate is aligned with the circular groove 307. The circular plate can then slide out of the circular groove 307, allowing the dustproof net 201 to be removed from the bracket 306, thus achieving the effect of easy removal of the dustproof net 201.

Claims

1. A high heat dissipation permanent magnet synchronous motor, comprising a rotor (103), permanent magnets (104), ribs (105), a stator (106), a slot (107), and a cooling cylinder (204). Four permanent magnets (104) are inserted into the rotor (103). Three spiral ribs (105) are provided on the rotor (103). The stator (106) is fixedly connected inside the cooling cylinder (204). A slot (107) is provided inside the stator (106). A stator winding is wound on the slot (107). The rotor (103) is placed inside the stator winding.

2. The high heat dissipation permanent magnet synchronous motor according to claim 1, characterized in that: It also includes an output shaft (101) and a keyway (102). The output shaft (101) is integrally formed on the rotor (103). The output shaft (101) is rotatably connected inside the cooling cylinder (204). The output shaft (101) is provided with two keyways (102).

3. The high heat dissipation permanent magnet synchronous motor according to claim 2, characterized in that: It also includes cooling pipes (206) and water pipes (207). Several rings of cooling pipes (206) are provided inside the cooling cylinder (204). Cooling pipes (206) are filled with coolant. Two water pipes (207) are fixedly connected to the cooling cylinder (204). The two water pipes (207) are connected to the cooling pipes (206). Coolant flows into the cooling pipes (206) from the bottom water pipe (207) and flows out of the cooling pipes (206) from the top water pipe (207).

4. A high-heat-dissipation permanent magnet synchronous motor according to claim 3, characterized in that: It also includes an air outlet pipe (208), a sealing cylinder (305) and an air outlet (308). The cooling cylinder (204) is provided with four air outlet pipes (208), and the sealing cylinder (305) is provided with four air outlets (308). The air outlets (308) are fixedly connected to the corresponding air outlet pipes (208), and dust baffles are fixedly connected to the air outlets (308).

5. A high-heat-dissipation permanent magnet synchronous motor according to claim 4, characterized in that: It also includes a limiting plate (309), a fan box (401), a clamping plate (402), and screws (403). Four limiting plates (309) are fixedly connected to the sealing cylinder (305), and eight clamping plates (402) are fixedly connected to the fan box (401). Each pair of clamping plates (402) forms a group, and a limiting plate (309) is inserted between each group of clamping plates (402). The limiting plate (309) and the clamping plate (402) are provided with threaded holes corresponding to their positions, and four screws (403) are inserted into the threaded holes of the corresponding limiting plate (309) and clamping plate (402).

6. A high-heat-dissipation permanent magnet synchronous motor according to claim 5, characterized in that: It also includes a fan shaft (108), a shaft hole (205), a fan (404), a baffle (405), a round hole (406), a dust cover (407), and an air inlet (408). The cooling cylinder (204) is provided with a shaft hole 205. The fan shaft (108) is rotatably connected in the shaft hole (205). The rotor (103) is integrally formed with a fan shaft (108). The fan shaft (108) is provided with a clamping groove. The fan box (401) is fixedly connected with a dust cover (407). The dust cover (407) is provided with a round hole (406). The fan (404) is rotatably connected in the round hole (406). The rotation direction of the fan (404) is opposite to that of the convex ridge (105). The dust cover (407) is provided with multiple air inlets (408). The air inlets (408) are fixedly connected with a dustproof plate.

7. A high-heat-dissipation permanent magnet synchronous motor according to claim 6, characterized in that: It includes a dustproof net (201) and a base frame (202). The base frame (202) is rotatably connected between the cooling cylinder (204) and the sealing cylinder (305). The base frame (202) is provided with four support pillars, and several dustproof nets (201) are fixedly connected to the support pillars. After the air is introduced between the cooling cylinder (204) and the sealing cylinder (305), it must pass through the dustproof net (201).

8. A high-heat-dissipation permanent magnet synchronous motor according to claim 7, characterized in that: It also includes a sealing cover (301), which is threadedly connected to the sealing cylinder (305). The output shaft (101) is rotatably connected inside the sealing cover (301). The sealing cover (301) has a curved surface and a frustum inside. The frustum of the sealing cover (301) and the rotor (103) are positioned correspondingly.

9. A high-heat-dissipation permanent magnet synchronous motor according to claim 8, characterized in that: It also includes a perforated plate (302), a spring (303) and a sliding column (304). The sealing cover (301) is provided with two perforated plates (302), and the sealing cylinder (305) is provided with two sliding plates. The two sliding columns (304) are slidably connected in the corresponding sliding plates. The spring (303) is wound around the sliding column (304). One end of the spring (303) is pressed tightly on the sliding plate, and the other end of the spring (303) is pressed tightly on the sliding column (304). The sliding column (304) is provided with a plug, which can be inserted into the perforated plate (302).

10. A high-heat-dissipation permanent magnet synchronous motor according to claim 9, characterized in that: It also includes a stop post (203), a bracket (306) and a circular groove (307). Four stop posts (203) are fixedly connected to the base frame (202). A circular plate is provided on the stop post (203). A bracket (306) is fixedly connected inside the sealing cylinder (305). The bracket (306) is provided with four circular grooves (307). Each circular groove (307) is connected to the sliding groove. The stop post (203) can be inserted into the sliding groove. The size of the circular plate is the same as that of the circular groove (307).

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