Permanent magnet synchronous motor block type injection molded stator

Abstract

The utility model relates to motor parts field, concretely is a kind of permanent magnet synchronous motor block type injection molding stator, it includes stator body, the permanent magnet of setting in stator body inside: splicing mechanism is set on stator body;Circulating heat dissipation mechanism is set to the outside of stator body;Oscillating plate is set to the inside of circulating heat dissipation mechanism.The utility model is through the setting of assembling mechanism, control card block is clamped into card slot, and it is in the middle of card slot, to can connect two stator body together, repeat operation and form a complete stator, so that the stator is divided into multiple independent arc modules, can simplify the production process of each module, reduce the manufacturing difficulty of whole, each module can be produced and processed respectively, finally again splicing into a complete annular stator, it is favorable to improve production efficiency and product quality, when maintaining, only need to disassemble and replace the module that appears fault, need not to disassemble the whole stator, short the maintenance time.

Description

Technical Field

[0001] This utility model relates to the field of motor components, and in particular to a modular injection-molded stator for a permanent magnet synchronous motor. Background Technology

[0002] A permanent magnet synchronous motor (PMSM) is a type of synchronous motor that uses permanent magnets as the rotor's magnetic field source. It boasts advantages such as high efficiency, high power density, and high torque density. The rotor of a PMSM generates a magnetic field by mounting permanent magnets. When current flows through the stator windings, the generated magnetic field interacts with the rotor's magnetic field, producing electromagnetic force and torque, which drives the motor to rotate.

[0003] Chinese Patent No. CN207719903U discloses a novel modular injection-molded stator for a permanent magnet synchronous motor, comprising a stator housing, magnetic tiles mounted on the inner wall of the stator housing, and magnetic tile retainers fixed to the inner wall of the stator housing. Limiting components on the inner wall of the stator housing are provided to prevent movement of the magnetic tile retainers. This invention features openwork design within the effective length of adjacent magnetic tiles, eliminating connections and preventing a decrease in effective magnetic flux. Furthermore, the use of magnetic tile retainers mounted at both ends of the magnetic tiles achieves a relatively simple structure for fixing them, simplifying assembly and improving manufacturability, thereby reducing the manufacturing cost of the stator assembly.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the existing permanent magnet motor stators are all complete modules, which are more complex to manufacture and increase the difficulty of production. At the same time, the stator generates high temperatures during operation, and if the high temperatures cannot be effectively dissipated quickly, it will affect the use of the stator. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that it is impossible to divide the stator into multiple modules for assembly and to effectively dissipate heat from the stator, and to propose a modular injection-molded stator for permanent magnet synchronous motors.

[0006] The technical solution of this utility model is as follows: a modular injection-molded stator for a permanent magnet synchronous motor, comprising a stator body and a permanent magnet disposed inside the stator body; further comprising:

[0007] The splicing mechanism is set on the stator body and is used to connect and assemble each stator body end to end;

[0008] The circulating heat dissipation mechanism is located on the outside of the stator body and is used to circulate and transport the coolant.

[0009] And an oscillating plate, which is located inside the circulating heat dissipation mechanism. Multiple filter holes are arranged at equal intervals on the oscillating plate. The oscillating plate is an arc-shaped plate and the center of the oscillating plate is the same as the center of the stator body. It is used to oscillate and mix the coolant. The filter holes are used to ensure the flow of coolant.

[0010] Preferably, the splicing mechanism includes a slide, a slot, and mounting components;

[0011] The slide groove is located on the side of the stator body, and the slot is located on the side of the stator body away from the slide groove;

[0012] The mounting components are slidably positioned inside the groove and are used to snap into the groove to complete the assembly between the two stator bodies.

[0013] Preferably, the mounting components include a locking block, a separator, a telescopic tube, and a spring.

[0014] The locking block is slidably mounted on the slide groove, the partition plate is located inside the slide groove and in the middle part of the slide groove, the telescopic tube is located at the bottom of the locking block, and the spring is located on the outside of the telescopic tube.

[0015] Preferably, the heat dissipation mechanism includes a circulation component and an oscillation component;

[0016] The circulation assembly is located on the outside of the stator body and is used to drive the coolant circulation flow;

[0017] The oscillation component is located inside the circulation component and is used to oscillate the coolant up and down.

[0018] Preferably, the circulation assembly includes a first bevel gear, a second bevel gear, a cooling box, and circulation pipes;

[0019] The cooling box is located on the outside of the stator body, and the circulation pipe is located on the side of the stator body. Two through holes are symmetrically arranged on the cooling box. A spiral blade is rotatably arranged on the inside of the circulation pipe. A connecting shaft is located at the axis of the spiral blade. A second bevel gear is located at the bottom of the connecting shaft, and a first bevel gear is located on the side of the second bevel gear. Heat dissipation fins are arranged on the inside of the cooling box.

[0020] Preferably, the oscillation assembly includes a connecting plate, a second telescopic tube, a second spring, and a mounting plate;

[0021] The mounting plate is located on the outside of the connecting shaft, the second telescopic tube is located at the bottom of the mounting plate, the second spring is located on the outside of the second telescopic tube, and the connecting plate is located on the side of the vibrating plate. The end of the connecting plate away from the vibrating plate is connected to the outside of the connecting shaft.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] 1. By setting up the assembly mechanism, the control block is inserted into the slot and pressed against the middle of the slot, thereby connecting the two stator bodies together. Repeated operation is used to form a complete stator. This divides the stator into multiple independent arc-shaped modules, which simplifies the production process of each module and reduces the overall manufacturing difficulty. Each module can be produced and processed separately, and finally assembled into a complete ring stator, which helps to improve production efficiency and product quality. At the same time, during maintenance, only the faulty module needs to be disassembled and replaced, without disassembling the entire stator, thus simplifying the maintenance process and shortening maintenance time.

[0024] 2. Through the setting of the circulating heat dissipation mechanism, the permanent magnet motor drives the coolant to circulate during operation, thereby cooling the stator body. At the same time, the vibrating plate agitates the coolant to make it evenly mixed. This can more effectively remove the heat generated by the stator, reduce the motor temperature, ensure the stability and reliability of the motor under high load and long-term operation, avoid performance degradation or damage caused by overheating, and thus extend the service life of the motor. The agitation of the coolant by the vibrating plate can make it more evenly mixed, reduce local overheating and temperature gradient, improve the heat dissipation efficiency of the entire cooling system, and enhance the heat transfer performance of the coolant, thereby more effectively transferring heat from the inside of the motor to the external environment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0026] Figure 2 for Figure 1 Internal structure diagram;

[0027] Figure 3 This is a structural diagram of the assembly mechanism;

[0028] Figure 4 This is a schematic diagram of the circulating heat dissipation mechanism;

[0029] Figure 5 This is a schematic diagram of the internal structure of the circulating heat dissipation mechanism;

[0030] Figure 6 for Figure 5 An enlarged diagram of A in the diagram.

[0031] Reference numerals in the attached drawings: 1. Stator body; 2. Permanent magnet; 3. Motor shaft; 401. Slot; 402. Slide groove; 403. Locking block; 404. Separator plate; 405. Telescopic tube one; 406. Spring one; 501. Bevel gear one; 502. Bevel gear two; 503. Connecting shaft; 504. Helical blade; 505. Circulation pipe; 506. Cooling box; 507. Vibration plate; 508. Through hole; 509. Heat dissipation fins; 510. Connecting plate; 511. Telescopic tube two; 512. Spring two; 513. Mounting plate. Detailed Implementation

[0032] Example 1

[0033] like Figures 1-3 As shown, the present invention proposes a modular injection-molded stator for a permanent magnet synchronous motor, comprising a stator body 1, a permanent magnet 2 disposed inside the stator body 1, an assembly mechanism, a circulating heat dissipation mechanism, and a vibration plate 507. Four stator bodies 1 are provided, and the four stator bodies 1 are connected end-to-end to form a ring. The motor shaft 3 is located at the center of the ring.

[0034] The splicing mechanism is set on the stator body 1 and is used to connect and assemble each stator body 1 end to end;

[0035] The circulating heat dissipation mechanism is located on the outside of the stator body 1 and is used to circulate and transport the coolant.

[0036] The oscillating plate 507 is located inside the circulating heat dissipation mechanism. Multiple filter holes are arranged at equal intervals on the oscillating plate 507. The oscillating plate 507 is an arc-shaped plate and the center of the oscillating plate 507 is the same as the center of the stator body 1. It is used to oscillate and mix the coolant. The filter holes are used to ensure the flow of coolant.

[0037] The splicing mechanism includes a slide 402, a slot 401, and an installation component. The slide 402 is located on the side of the stator body 1, and the slot 401 is located on the side of the stator body 1 away from the slide 402. The installation component is slidably disposed inside the slide 402 and is used to engage with the slot 401 to complete the assembly between the two stator bodies 1. The installation component includes a locking block 403, a partition plate 404, a telescopic tube 405, and a spring 406. The locking block 403 is slidably disposed on the slide 402, the partition plate 404 is disposed inside the slide 402 and located in the middle part of the slide 402, the telescopic tube 405 is disposed at the bottom of the locking block 403, the spring 406 is disposed on the outside of the telescopic tube 405, and another locking block 403 is disposed at the end of the telescopic tube 405 away from the locking block 403. The outer shape of the locking block 403 and the slot are similar. The inner sides of 401 are identical. When installation is required, press the two locking blocks 403 simultaneously so that the opposing sides of the two locking blocks 403 fully contact the separator 404. Then, the locking blocks 403 are inserted into the inner side of the slot 401. At this time, the spring 406 and the telescopic tube 405 are compressed and pushed into the inner side of the slot 401. When the locking block 403 moves to the innermost side of the slot 401, the locking block 403 is ejected outward under the action of the spring 406, thereby locking the two stator bodies 1 together.

[0038] Example 2

[0039] like Figures 4-6 As shown, this utility model proposes a modular injection-molded stator for a permanent magnet synchronous motor. Compared with Embodiment 1, this embodiment details the structure of the heat dissipation mechanism.

[0040] The heat dissipation mechanism includes a circulation assembly and an oscillation assembly. The circulation assembly is located on the outside of the stator body 1 and is used to drive the coolant circulation. The oscillation assembly is located on the inside of the circulation assembly and is used to oscillate the coolant up and down. The circulation assembly includes a first bevel gear 501, a second bevel gear 502, a cooling box 506, and a circulation pipe 505. The cooling box 506 is located on the outside of the stator body 1, and the circulation pipe 505 is located on the side of the stator body 1. The cooling box 506 has two symmetrical through holes 508, which are directly opposite the end of the circulation pipe 505. A spiral blade 504 is rotatably mounted on the inside of the circulation pipe 505. The outside of the spiral blade 504 is in contact with the inside of the circulation pipe 505. A connecting shaft 503 is located at the axis of the spiral blade 504. The second bevel gear 502 is located at the bottom of the connecting shaft 503, and the first bevel gear 501 is located on the side of the second bevel gear 502. The inner side of 501 is connected to the outer side of the motor shaft 3. The inner side of the cooling box 506 is provided with heat dissipation fins 509. Multiple heat dissipation fins 509 are arranged in a ring around the outer side of the stator body 1, and the heat dissipation fins 509 are connected to the outer side of the stator body 1. When the motor is working, it drives the motor shaft 3 to rotate. The shaft drives the first bevel gear 501 to rotate. The first bevel gear 501 drives the second bevel gear 502 to rotate. The second bevel gear 502 drives the connecting shaft 503 to rotate. The connecting shaft 503 drives the spiral blade 504 to rotate, thereby driving the coolant in the cooling box 506 and the circulation pipe 505 to circulate. During the flow of coolant, the heat dissipation fins 509 on the inner side of the cooling box 506 are cooled. The oscillation assembly includes a connecting plate 510, a second telescopic tube 511, a second spring 512, and a mounting plate 513. The mounting plate 513 is located on the outside of the connecting shaft 503, the second telescopic tube 511 is located at the bottom of the mounting plate 513, the second spring 512 is located on the outside of the second telescopic tube 511, and the connecting plate 510 is located on the side of the oscillation plate 507. The end of the connecting plate 510 away from the oscillation plate 507 is connected to the outside of the connecting shaft 503. There are two mounting plates 513 symmetrically arranged about the oscillation plate 507. Since the motor vibrates during operation, the vibration is transmitted to the connecting shaft 503 through the motor shaft 3, and the connecting shaft 503 transmits the vibration to the oscillation plate 507. Therefore, the oscillation plate 507 will vibrate during operation, and the second spring 512 and the second telescopic tube 511 will make the vibration effect better, thereby oscillating the coolant in the cooling box 506, making the coolant in the cooling box 506 more evenly mixed and improving the heat dissipation effect.

[0041] In summary, when using this utility model, each stator body 1 is arranged, then one stator body 1 is taken out, and the two locking blocks 403 on this stator body 1 are pressed simultaneously, so that the opposing sides of the two locking blocks 403 are fully in contact with the separator 404. Then, the locking blocks 403 are inserted into the inner side of the locking slot 401 of the other stator body 1, and then the stator body 1 is pushed into the inner side of the locking slot 401. When the locking blocks 403 move to the innermost side of the locking slot 401, the locking blocks 403 are ejected outward under the action of the spring 406, thereby locking the two stator bodies 1 together. After all the stator bodies 1 are locked together to form a ring, they are installed on the permanent magnet motor. When the permanent magnet motor is working, it drives the motor shaft 3 to rotate, and the shaft drives the bevel gear 501 to rotate. The bevel gear 501 drives the bevel gear 502 to rotate. The second spring 502 drives the connecting shaft 503 to rotate, which in turn drives the spiral blade 504 to rotate, thereby causing the coolant in the cooling box 506 and the circulation pipe 505 to circulate. During the flow of coolant, the heat dissipation fins 509 on the inner side of the cooling box 506 are cooled, and the heat dissipation fins 509 dissipate heat and cool the stator body 1. At the same time, since the permanent magnet motor vibrates when it is working, the vibration is transmitted to the connecting shaft 503 through the motor shaft 3, and the connecting shaft 503 transmits the vibration to the vibration plate 507. Therefore, the vibration plate 507 will vibrate during the operation, and the second spring 512 and the second telescopic tube 511 will make the vibration effect better, thereby vibrating the coolant in the cooling box 506, making the coolant in the cooling box 506 more evenly mixed and improving the heat dissipation effect.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A modular injection-molded stator for a permanent magnet synchronous motor, comprising a stator body (1) and a permanent magnet (2) disposed inside the stator body (1); characterized in that, Also includes: The splicing mechanism is set on the stator body (1) and is used to connect and assemble each stator body (1) end to end. The circulating heat dissipation mechanism is located on the outside of the stator body (1) and is used to circulate and transport the coolant. And an oscillating plate (507), which is located inside the circulating heat dissipation mechanism. Multiple filter holes are arranged at equal intervals on the oscillating plate (507). The oscillating plate (507) is an arc-shaped plate and the center of the oscillating plate (507) is the same as the center of the stator body (1). It is used to oscillate and mix the coolant. The filter holes are used to ensure the flow of coolant.

2. The modular injection-molded stator of the permanent magnet synchronous motor according to claim 1, characterized in that, The splicing mechanism includes a slide (402), a slot (401), and mounting components; The slide groove (402) is provided on the side of the stator body (1), and the slot (401) is provided on the side of the stator body (1) away from the slide groove (402); The mounting component is slidably positioned inside the slide groove (402) and is used to snap into the slot (401) to complete the assembly between the two stator bodies (1).

3. The modular injection-molded stator of the permanent magnet synchronous motor according to claim 2, characterized in that, The mounting components include a locking block (403), a separator (404), a telescopic tube (405), and a spring (406); The locking block (403) is slidably disposed on the slide groove (402), the partition plate (404) is disposed on the inner side of the slide groove (402) and located in the middle part of the slide groove (402), the first telescopic tube (405) is disposed at the bottom of the locking block (403), and the first spring (406) is disposed on the outer side of the first telescopic tube (405).

4. The modular injection-molded stator of the permanent magnet synchronous motor according to claim 1, characterized in that, The heat dissipation mechanism includes a circulation component and an oscillation component; The circulation component is located on the outside of the stator body (1) and is used to drive the coolant to circulate. The oscillation component is located inside the circulation component and is used to oscillate the coolant up and down.

5. The modular injection-molded stator of the permanent magnet synchronous motor according to claim 4, characterized in that, The circulation assembly includes bevel gear one (501), bevel gear two (502), cooling box (506), and circulation pipe (505); A cooling box (506) is located on the outside of the stator body (1), a circulation pipe (505) is located on the side of the stator body (1), two through holes (508) are symmetrically arranged on the cooling box (506), a spiral blade (504) is rotatably arranged on the inside of the circulation pipe (505), a connecting shaft (503) is arranged at the axis of the spiral blade (504), a second bevel gear (502) is located at the bottom of the connecting shaft (503), a first bevel gear (501) is located on the side of the second bevel gear (502), and a heat dissipation fin (509) is arranged on the inside of the cooling box (506).

6. The modular injection-molded stator of the permanent magnet synchronous motor according to claim 5, characterized in that, The oscillation assembly includes a connecting plate (510), a second telescopic tube (511), a second spring (512), and a mounting plate (513); The mounting plate (513) is located on the outside of the connecting shaft (503), the second telescopic tube (511) is located at the bottom of the mounting plate (513), the second spring (512) is located on the outside of the second telescopic tube (511), the connecting plate (510) is located on the side of the vibrating plate (507), and the end of the connecting plate (510) away from the vibrating plate (507) is connected to the outside of the connecting shaft (503).

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