High-power ultrahigh-speed synchronous reluctance motor

Abstract

The utility model provides a high-power ultrahigh-speed synchronous reluctance motor, which comprises a casing, a tail cover is fixedly mounted at the tail of the casing, an end cover is fixedly mounted at the front end of the casing, a stator is fixedly mounted in the casing, a rotor is rotatably mounted in the stator, one end of the rotor rotatably extends out of the end cover, and the other end of the rotor extends out of the end cover. A liquid cooling pipeline is mounted on the rotor; according to the utility model, through the overall arrangement, the contact area between the cooling system and the rotor can be increased, so that the cooling efficiency of the rotor is improved in the overall operation process, and the stable operation of the motor at high power and ultrahigh speed is ensured.

Description

Technical Field

[0001] This utility model relates to the field of synchronous reluctance motors, and in particular to a high-power ultra-high-speed synchronous reluctance motor. Background Technology

[0002] Synchronous reluctance motor (SynRM) is a new type of AC motor with advantages such as simple structure, robustness and durability, high efficiency, wide speed range and low cost. It is widely used in the field of industrial automation speed control drive.

[0003] However, existing synchronous reluctance motors generate heat during use. The common cooling methods are air cooling or water cooling. Although air cooling and water cooling can cool the motor, the cooling effect is generally limited due to the limited contact area, which affects the motor's power and speed.

[0004] Therefore, it is essential to invent a high-power, ultra-high-speed synchronous reluctance motor. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-power ultra-high-speed synchronous reluctance motor with the following technical solution: a high-power ultra-high-speed synchronous reluctance motor, including a housing, wherein: a tail cover is detachably and fixedly installed at the rear of the housing, an end cover is detachably and fixedly installed at the front of the housing, a stator is fixedly installed inside the housing, a rotor is rotatably installed in the stator, one end of the rotor rotatably extends out from the end cover, and a liquid cooling pipe is installed on the rotor;

[0006] The rotor includes a rotating shaft, a rotor core, reinforcing plates, and a front positioning ring. Several reinforcing plates are uniformly fixedly installed on the circumference of the rotating shaft. A front positioning ring is coaxially sleeved and fixedly installed on the side of the rotating shaft near the end cover. The front positioning ring is fixedly connected to one end of each of the reinforcing plates. The rotor core is coaxially sleeved and fixedly installed on the rotating shaft. The reinforcing plates are located inside the rotor core. The liquid cooling pipe is rotatably installed on the rotating shaft.

[0007] A water inlet pipe is coaxially fixedly installed at the tail end of the rotating shaft. The water inlet pipe is connected to the inside of the rotating shaft, and the other end of the water inlet pipe extends out from the tail cover.

[0008] The front positioning ring has a coaxial cavity on the side facing the end cover, and the reinforcing piece is connected to the rotating shaft and the inside of the cavity;

[0009] The liquid cooling pipeline includes a rotary joint and a water outlet pipe. The rotary joint is rotatably sleeved on the rotating shaft. The rotary joint is rotatably connected to the annular cavity in a sealed manner. One end of the rotary joint is fixedly connected to the water outlet pipe. The other end of the water outlet pipe enters the tail cover from the housing and extends out from the tail cover. The rotary joint is connected to the annular cavity and the water outlet pipe.

[0010] The rotor core is evenly provided with several sets of air magnetic barrier slots and several sets of slots. The number of slots is at least the same as the number of air magnetic barrier slots. The slots and air magnetic barrier slots are tangentially connected. The reinforcing plate is located in the corresponding slot.

[0011] The rotor core has a coaxial through hole, and the rotor core is fixedly mounted on the rotating shaft through the through the through hole.

[0012] The rotary joint has a socket on one side, which is rotated and sealed into the annular cavity.

[0013] A rear positioning ring is coaxially fixedly installed on the side of the rotating shaft near the tail cover, and the rotor core is fixedly installed between the front positioning ring and the rear positioning ring.

[0014] The casing has a through hole, and the water outlet pipe is installed in the through hole, with both ends of the water outlet pipe extending out of the through hole.

[0015] A junction box is fixedly installed on the outside of the casing.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] The overall design of this utility model can increase the contact area between the cooling system and the rotor, thereby improving the cooling efficiency of the rotor during operation and ensuring stable operation of the motor under high power and ultra-high speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the end cap opening structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the housing and through-hole structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the rotor and liquid cooling pipeline structure of this utility model.

[0022] Figure 5 This is an exploded structural diagram of the rotating shaft and liquid cooling pipeline of this utility model.

[0023] Figure 6 This is a schematic diagram of the rotor core structure of this utility model.

[0024] In the picture:

[0025] 1. Housing; 2. Stator; 3. Shaft; 4. Rotor core; 5. Reinforcing plate; 6. Front positioning ring; 7. Ring cavity; 8. Rear positioning ring; 9. Water inlet pipe; 10. Rotary joint; 11. Socket; 12. Water outlet pipe; 13. Shaft hole; 14. Air magnetic barrier groove; 15. Slot; 16. End cover; 17. Tail cover; 18. Junction box; 19. Through hole. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] Example

[0030] Reference Figure 1-6A high-power ultra-high-speed synchronous reluctance motor includes a housing 1, wherein: a tail cover 17 is detachably and fixedly installed at the rear of the housing 1, and an end cover 16 is detachably and fixedly installed at the front of the housing 1, so that the tail cover 17 and the end cover 16 can be removed later to maintain and repair the stator 2, the rotor and the liquid cooling pipes; the stator 2 is fixedly installed inside the housing 1, and the rotor is rotatably installed in the stator 2; one end of the rotor extends rotatably from the end cover 16; and the rotor is equipped with liquid cooling pipes to cool the rotor through the liquid cooling pipes.

[0031] In this embodiment, the rotor includes a rotating shaft 3, a rotor core 4, reinforcing plates 5, and a front positioning ring 6. Several reinforcing plates 5 are uniformly fixedly installed on the circumference of the rotating shaft 3. The front positioning ring 6 is coaxially sleeved and fixedly installed on the side of the rotating shaft 3 near the end cover 16, so as to position the front end of the rotor core 4 installed on the rotating shaft 3 through the front positioning ring 6. The front positioning ring 6 is fixedly connected to one end of each reinforcing plate 5. The rotor core 4 is coaxially sleeved and fixedly installed on the rotating shaft 3. The reinforcing plates 5 are located inside the rotor core 4. By setting the reinforcing plates 5, not only can the stability of the rotor core 4 on the rotating shaft 3 and the strength between the rotor core 4 and the rotating shaft 3 be guaranteed, but the heat dissipation contact area with the rotor core 4 can also be increased, thereby improving the heat dissipation efficiency. The liquid cooling pipe is rotatably installed on the rotating shaft 3 so that the delivery of coolant will not be affected during the rotation of the rotating shaft 3.

[0032] In this embodiment, a water inlet pipe 9 is coaxially fixedly installed at the tail end of the rotating shaft 3. The water inlet pipe 9 is connected to the inside of the rotating shaft 3. The other end of the water inlet pipe 9 extends out from the tail cover 17 so as to connect to the liquid outlet of the cooling system of the external equipment through the water inlet pipe 9.

[0033] In this embodiment, the front positioning ring 6 is coaxially provided with an annular cavity 7 on the side facing the end cover 16. The reinforcing plate 5 is connected to the rotating shaft 3 and the interior of the annular cavity 7 so that the cooling liquid enters the rotating shaft 3 through the water inlet pipe 9, then enters each reinforcing plate 5 from the rotating shaft 3, and then enters the annular cavity 7 from each reinforcing plate 5, thereby cooling the rotating shaft 3 and the rotor core 4.

[0034] In this embodiment, the liquid cooling pipeline includes a rotary joint 10 and an outlet pipe 12. The rotary joint 10 is rotatably sleeved on the rotating shaft 3 so as not to affect the rotation of the rotating shaft 3 and the flow of the cooling liquid. The rotary joint 10 is sealed and rotatably connected to the annular cavity 7. One end of the rotary joint 10 is fixedly connected to the outlet pipe 12 so that the heat-absorbing coolant enters the rotary joint 10 through the annular cavity 7 and finally flows out from the outlet pipe 12. The other end of the outlet pipe 12 enters the tail cover 17 from the housing 1 and extends out from the tail cover 17 so as to connect with the coolant circulation port of the cooling system of the external equipment through the outlet pipe 12. The rotary joint 10 is connected to the annular cavity 7 and the outlet pipe 12.

[0035] In this embodiment, a plurality of sets of air magnetic barrier grooves 14 and a plurality of sets of slots 15 are evenly provided on the rotor core 4. The number of sets of slots 15 is at least the same as the number of sets of air magnetic barrier grooves 14, and the number of sets of slots 15 can be greater than the number of sets of air magnetic barrier grooves 14, and in a multiple relationship. The slots 15 and the air magnetic barrier grooves 14 are tangentially connected. The reinforcing plate 5 is located in the corresponding slot 15 so that air can circulate during the rotation of the rotor core 4, and better dissipate heat from the reinforcing plate 5.

[0036] In this embodiment, a socket 11 is provided on one side of the rotary joint 10. The socket 11 is rotated and sealed in the annular cavity 7 to ensure the stability and sealing between the rotary joint 10 and the annular cavity 7.

[0037] In this embodiment, a rear positioning ring 8 is coaxially fixedly installed on the side of the rotating shaft 3 near the tail cover 17, and the rotor core 4 is fixedly installed between the front positioning ring 6 and the rear positioning ring 8 in order to position the rotor core 4 and ensure the stability of the rotor core 4 on the rotating shaft 3.

[0038] In this embodiment, a through hole 19 is provided on the housing 1, and the water outlet pipe 12 is installed in the through hole 19. The through hole 19 is provided to provide installation space for the water outlet pipe 12, so that the water outlet pipe 12 can run from inside the housing 1, ensuring the overall neatness.

[0039] In this embodiment, a junction box 18 is fixedly installed on the outside of the housing 1 so that the windings on the stator 2 can be connected to the power supply through the terminals inside the junction box 18.

[0040] In this embodiment, heat dissipation fins are uniformly arranged on the outside of the casing 1 to increase the contact area between the casing 1 and the air, so that it can be naturally cooled.

[0041] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A high-power super-high-speed synchronous reluctance motor, characterized by: The utility model provides a liquid cooling type motor, including casing (1), wherein: the tail cover (17) is fixedly installed to the tail of casing (1), the end cover (16) is fixedly installed to the front end of casing (1), the stator (2) is fixedly installed in casing (1) inside, the rotor is rotatably installed in stator (2), one end of rotor rotatably extends from end cover (16), and liquid cooling pipeline is installed on rotor; The rotor includes rotating shaft (3), rotor iron core (4), reinforcing sheet (5) and front locating ring (6), the rotating shaft (3) is uniformly fixedly installed with a plurality of reinforcing sheet (5) on the surface, the rotating shaft (3) is fixedly installed with front locating ring (6) on the side close to end cover (16), the front locating ring (6) is fixedly connected with the one end of each reinforcing sheet (5), the rotor iron core (4) is fixedly installed on rotating shaft (3), and the reinforcing sheet (5) is in the inside of rotor iron core (4); The tail end of rotating shaft (3) is fixedly installed with water inlet pipe (9), the water inlet pipe (9) is communicated with the inside of rotating shaft (3), and the other end of water inlet pipe (9) rotatably extends from tail cover (17); The side of front locating ring (6) towards end cover (16) is provided with ring cavity (7), and the reinforcing sheet (5) is communicated with the inside of rotating shaft (3) and ring cavity (7); The liquid cooling pipeline includes rotary joint (10) and water outlet pipe (12), the rotary joint (10) is rotatably arranged on rotating shaft (3), the rotary joint (10) is sealingly and rotatably connected between ring cavity (7), one end of rotary joint (10) is fixedly connected with water outlet pipe (12), the other end of water outlet pipe (12) enters tail cover (17) from casing (1) and extends from tail cover (17), and the rotary joint (10) is communicated between ring cavity (7) and water outlet pipe (12); A plurality of groups of air magnetic barrier grooves (14) and a plurality of groups of clamping grooves (15) are uniformly formed on the rotor iron core (4), the number of groups of clamping grooves (15) is at least equal to the number of groups of air magnetic barrier grooves (14), the clamping grooves (15) and the air magnetic barrier grooves (14) are tangentially communicated, and the reinforcing sheet (5) is in the corresponding clamping groove (15); The rotor iron core (4) is fixedly installed on rotating shaft (3) through shaft hole (13).

2. A high-power super-high-speed synchronous reluctance motor according to claim 1, characterized in that: The side of rotary joint (10) is provided with socket (11), and the socket (11) is rotatably and sealingly inserted into ring cavity (7).

3. A high-power super-high-speed synchronous reluctance motor according to claim 1, characterized in that: The rear locating ring (8) is fixedly installed on the side of rotating shaft (3) close to tail cover (17), and the rotor iron core (4) is fixedly installed between front locating ring (6) and rear locating ring (8).

4. A high-power super-high-speed synchronous reluctance motor according to claim 1, characterized in that: The through hole (19) is formed on casing (1), the water outlet pipe (12) is installed in the through hole (19), and both ends of the water outlet pipe (12) extend from the through hole (19).

5. A high-power super-high-speed synchronous reluctance motor as claimed in claim 4, characterized in that: The junction box (18) is fixedly installed on the outside of casing (1).

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