Reluctance motor with optimized rotor dynamic balance

Abstract

The invention provides a reluctance motor with optimized rotor dynamic balance, and belongs to the technical field of motors, the reluctance motor comprises a reluctance motor body and a motor output shaft, one end, close to the motor output shaft, of the reluctance motor body is connected with a plurality of dynamic balance optimization structures, and the dynamic balance optimization structures are in contact with the outer surface of the motor output shaft. Therefore, the auxiliary support of the motor output shaft is realized. According to the invention, through the arrangement of the dynamic balance optimization structure, the dynamic balance optimization structure can carry out auxiliary support on the output shaft of the motor, so that the rotor reaches a better dynamic balance state during rotation, thereby remarkably reducing vibration and noise, and improving the operation stability of the motor; the improvement of the dynamic balance is helpful for reducing the energy loss in the operation of the motor and improving the efficiency of the motor.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically, to a reluctance motor with optimized rotor dynamic balance. Background Technology

[0002] With the rapid development of motor technology, reluctance motors have been widely used in electric vehicles, industrial automation, wind power generation, and other fields due to their significant advantages such as simple structure, high torque density, and wide speed range. However, as these applications continue to expand and deepen, the requirements for motor performance are becoming increasingly stringent, especially in terms of improving operating efficiency, reducing noise and vibration, and extending service life. The working principle of reluctance motors is based on the principle of minimum reluctance, that is, the rotor will automatically adjust to the position where the magnetic reluctance is minimized in the magnetic field, thereby generating torque. However, in actual manufacturing and use, due to factors such as uneven materials, processing errors, and assembly precision, the rotor often cannot achieve an ideal dynamic balance. This imbalance will generate periodic centrifugal force and vibration when the motor rotates, affecting the smoothness of motor operation, reducing motor efficiency, and even causing failures, posing a threat to the reliability and safety of the equipment. Therefore, we have made improvements and proposed a reluctance motor with optimized rotor dynamic balance. Summary of the Invention

[0003] The purpose of this invention is to address the problem that rotor imbalance causes periodic centrifugal force and vibration during motor rotation, affecting the smoothness of motor operation.

[0004] To achieve the above-mentioned objectives, the present invention provides a reluctance motor with optimized rotor dynamic balance to improve the aforementioned problems.

[0005] The application is as follows: A rotor dynamic balance optimized reluctance motor includes a reluctance motor body and a motor output shaft. A plurality of dynamic balance optimization structures are connected to one end of the reluctance motor body near the motor output shaft. Each of the dynamic balance optimization structures is in contact with the outer surface of the motor output shaft to provide auxiliary support for the motor output shaft.

[0006] As a preferred technical solution of this application, the dynamic balancing optimization structure includes a fixed seat fixedly installed on the main body of the reluctance motor, a movable seat slidably connected to the side of the fixed seat away from the main body of the reluctance motor, support arms fixedly connected to both sides of the movable seat, a support shaft installed on the support arm, and a support wheel sleeved on the outer surface of the support shaft through a bearing, the outer surface of the support wheel contacting the output shaft of the motor.

[0007] As a preferred technical solution of this application, a sliding groove is provided on the side of the movable seat away from the fixed seat, and an elongated hole is provided through the sliding groove and the movable seat. A fixing bolt is slidably connected in the sliding groove, and one end of the fixing bolt passes through the elongated hole and is connected to the fixed seat; a screw hole is provided on the fixed seat for connecting with the fixing bolt.

[0008] As a preferred technical solution of this application, a detection sensor is installed on the side of the fixed base near the motor output shaft, the detection sensor is connected to a controller, and an alarm connected to the controller is installed on the main body of the reluctance motor.

[0009] As a preferred technical solution of this application, a protective part is provided on the side of the reluctance motor body near the dynamic balance optimization structure, and the protective part is used to protect the dynamic balance optimization structure.

[0010] As a preferred technical solution of this application, the protective part includes a protective cover disposed on the side of the reluctance motor body near the dynamic balance optimization structure, and the protective cover has a through hole through which the motor output shaft passes.

[0011] As a preferred technical solution of this application, a plurality of second mounting seats are fixedly connected to the outer surface of the protective cover, and a plurality of first mounting seats are fixedly connected to the outer surface of the reluctance motor body, wherein the first mounting seats and the second mounting seats are connected by bolts.

[0012] As a preferred technical solution of this application, the outer surface of the reluctance motor body is provided with a number of heat sinks, and the reluctance motor body is provided with a number of first mounting holes.

[0013] As a preferred technical solution of this application, the outer surface of the reluctance motor body is provided with a heat dissipation structure; the heat dissipation structure includes two heat exchange boxes located on both sides of the reluctance motor body, each heat exchange box having a cold water chamber, and multiple grooves are provided on the side of the two heat exchange boxes that are close to each other, with the inner wall of the grooves being inserted into heat sinks.

[0014] As a preferred technical solution of this application, the heat exchange box is equipped with a first connecting pipe and a second connecting pipe that communicate with the cold water chamber; multiple connecting plates are connected between the two heat exchange boxes, and the heat exchange box is connected to a mounting plate. The mounting plate is provided with a second mounting hole, and the number and position of the second mounting hole correspond to the number and position of the first mounting hole.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: To address the problem in existing technologies where rotor imbalance generates periodic centrifugal force and vibration during motor rotation, affecting the motor's operational stability, this application employs a dynamic balancing optimization structure. This structure provides auxiliary support to the motor's output shaft, enabling the rotor to achieve a better dynamic balance during rotation. This significantly reduces vibration and noise, improving the motor's operational stability. Improved dynamic balance also helps reduce energy loss during motor operation, thereby increasing motor efficiency. Attached Figure Description

[0016] Figure 1 A schematic diagram of the rotor dynamic balance optimized reluctance motor provided in this application; Figure 2 Exploded view of the reluctance motor with rotor dynamic balance optimized for this application; Figure 3 A schematic diagram of the structure of the first mounting base of the reluctance motor with rotor dynamic balance optimization provided in this application; Figure 4 A schematic diagram of the dynamic balance optimization structure of the reluctance motor with rotor dynamic balance optimization provided in this application; Figure 5 A schematic diagram of the detection sensor for the rotor dynamic balance optimized reluctance motor provided in this application; Figure 6 A cross-sectional view of the heat exchange box of the reluctance motor with rotor dynamic balance optimization provided in this application.

[0017] The image shows: 1. Reluctance motor body; 101. Motor output shaft; 102. First mounting hole; 103. First mounting base; 104. Heat sink; 2. Dynamic balancing optimized structure; 201. Fixed base; 202. Movable base; 203. Slide groove; 204. Elongated hole; 205. Fixing bolt; 206. Support arm; 207. Support shaft; 208. Support wheel; 209. Detection sensor; 3. Alarm device; 4. Protective cover; 401. Through hole; 402. Second mounting base; 5. Heat dissipation structure; 501. Heat exchange box; 502. Cold water chamber; 503. Groove; 504. Mounting plate; 505. Second mounting hole; 506. First connecting pipe; 507. Second connecting pipe; 508. Connecting plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 scope of protection of the present invention.

[0019] As described in the background art, in actual manufacturing and use, due to factors such as uneven materials, processing errors, and assembly precision, the rotor often cannot achieve an ideal dynamic balance. This imbalance will generate periodic centrifugal force and vibration when the motor rotates, affecting the smoothness of motor operation, reducing motor efficiency, and even causing failures, posing a threat to the reliability and safety of the equipment.

[0020] To address this technical problem, the present invention provides a reluctance motor with optimized rotor dynamic balance.

[0021] For details, please refer to Figures 2-5 Rotor dynamic balance optimized reluctance motors specifically include: The reluctance motor body 1 and the motor output shaft 101 are provided. Several dynamic balancing optimization structures 2 are connected to one end of the reluctance motor body 1 near the motor output shaft 101. The several dynamic balancing optimization structures 2 are in contact with the outer surface of the motor output shaft 101 to provide auxiliary support for the motor output shaft 101.

[0022] The rotor dynamic balance optimized reluctance motor provided by this invention, through the dynamic balance optimization structure 2, can provide auxiliary support for the motor output shaft 101, so that the rotor can achieve a better dynamic balance state when rotating, thereby significantly reducing vibration and noise and improving the operating stability of the motor; the improvement of dynamic balance helps to reduce energy loss during motor operation and improve motor efficiency.

[0023] 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 with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Example 1, please refer to Figures 2-5A reluctance motor with rotor dynamic balance optimization includes a reluctance motor body 1 and a motor output shaft 101. A plurality of dynamic balance optimization structures 2 are connected to one end of the reluctance motor body 1 near the motor output shaft 101. Each of the dynamic balance optimization structures 2 contacts the outer surface of the motor output shaft 101 to provide auxiliary support. The dynamic balance optimization structures 2 provide auxiliary support to the motor output shaft 101, enabling the rotor to achieve a better dynamic balance during rotation, thereby significantly reducing vibration and noise and improving the motor's operational stability. Improved dynamic balance also helps reduce energy loss during motor operation and increases motor efficiency.

[0027] Furthermore, such as Figures 2-5 As shown, the dynamic balancing optimization structure 2 includes a fixed base 201 fixedly mounted on the main body 1 of the reluctance motor. A movable base 202 is slidably connected to the side of the fixed base 201 away from the main body 1 of the reluctance motor. Support arms 206 are fixedly connected to both sides of the movable base 202. A support shaft 207 is mounted on the support arm 206. A support wheel 208 is sleeved on the outer surface of the support shaft 207 through a bearing. The outer surface of the support wheel 208 contacts the motor output shaft 101. The support wheel 208 can improve the dynamic balance of the motor output shaft 101 when it rotates by supporting the motor output shaft 101. The side of the support arm 206 contacts the fixed base 201. The fixed base 201 can improve the stability of the support arm 206 by limiting the support arm 206.

[0028] Furthermore, such as Figure 4 As shown, a sliding groove 203 is provided on the side of the movable seat 202 away from the fixed seat 201. An elongated hole 204 is provided through the sliding groove 203 and the movable seat 202. A fixing bolt 205 is slidably connected in the sliding groove 203. One end of the fixing bolt 205 passes through the elongated hole 204 and is connected to the fixed seat 201. A screw hole is provided on the fixed seat 201 for connecting with the fixing bolt 205. After loosening the fixing bolt 205, the movable seat 202 can be moved to adjust the position of the support wheel 208.

[0029] Furthermore, such as Figure 3 and Figure 5 As shown, a detection sensor 209 is installed on the side of the fixed base 201 near the motor output shaft 101. The detection sensor 209 is connected to a controller, and an alarm 3 connected to the controller is installed on the main body 1 of the reluctance motor. The detection sensor 209 is a distance sensor. By detecting the distance change when the motor output shaft 101 rotates through the detection sensor 209, it is easy to confirm whether the rotation process of the motor output shaft 101 is balanced.

[0030] Example 2 further optimizes the rotor dynamic balance optimized reluctance motor provided in Example 1, specifically, as follows: Figure 1and Figure 2 As shown, a protective part is provided on the side of the reluctance motor body 1 near the dynamic balancing optimization structure 2. The protective part is used to protect the dynamic balancing optimization structure 2 and reduce the impact of the external environment on the dynamic balancing optimization structure 2.

[0031] Furthermore, such as Figure 1 and Figure 2 As shown, the protective part includes a protective cover 4 located on the side of the reluctance motor body 1 near the dynamic balance optimization structure 2. The protective cover 4 has a through hole 401 through which the motor output shaft 101 passes. The protective cover 4 can protect the dynamic balance optimization structure 2 and the alarm 3.

[0032] Furthermore, such as Figure 1 and Figure 2 As shown, a number of second mounting seats 402 are fixedly connected to the outer surface of the protective cover 4, and a number of first mounting seats 103 are fixedly connected to the outer surface of the reluctance motor body 1. The first mounting seats 103 and the second mounting seats 402 are connected by bolts. The bolt connection allows the protective cover 4 to be removed so as to facilitate the inspection and maintenance of the dynamic balance optimization structure 2.

[0033] Example 3 further optimizes the rotor dynamic balance optimized reluctance motor provided in Example 1 or 2, specifically, as follows: Figure 1 , Figure 2 and Figure 6 As shown, a plurality of heat sinks 104 are provided on the outer surface of the reluctance motor body 1. The heat sinks 104 are used for heat dissipation of the reluctance motor body 1. A plurality of first mounting holes 102 are provided on the reluctance motor body 1. The first mounting holes 102 are used for mounting the reluctance motor body 1.

[0034] Furthermore, such as Figure 1 , Figure 2 and Figure 6 As shown, a heat dissipation structure 5 is provided on the outer surface of the reluctance motor body 1. The heat dissipation structure 5 includes two heat exchange boxes 501 located on both sides of the reluctance motor body 1. Each heat exchange box 501 has a cold water chamber 502. Multiple grooves 503 are provided on the side of the two heat exchange boxes 501 that are close to each other. The inner wall of the grooves 503 is inserted into the heat sink 104. Except for the side of the heat exchange box 501 that is close to the reluctance motor body 1, the other sides are provided with a heat insulation coating. The heat insulation coating can reduce the heat exchange between the heat exchange box 501 and the external environment.

[0035] Furthermore, such as Figure 6As shown, a first connecting pipe 506 and a second connecting pipe 507 communicating with the cold water chamber 502 are installed on the heat exchange box 501; multiple connecting plates 508 are connected between the two heat exchange boxes 501, and the connecting plates 508 are connected to the heat exchange boxes 501 by bolts. The heat exchange box 501 is connected to a mounting plate 504, and the mounting plate 504 has a second mounting hole 505. The number and position of the second mounting hole 505 correspond to the number and position of the first mounting hole 102. The first connecting pipe 506 and the second connecting pipe 507 cooperate with each other to be connected to an existing chiller. The chiller can realize the circulation of cold water in the cold water chamber 502, so that the cold water can dissipate heat on the reluctance motor body 1 through the heat exchange box 501 and the heat sink 104.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A reluctance motor with optimized rotor dynamic balance, comprising a reluctance motor body (1) and a motor output shaft (101), characterized in that: A plurality of dynamic balancing optimization structures (2) are connected to one end of the reluctance motor body (1) close to the motor output shaft (101), and the plurality of dynamic balancing optimization structures (2) are in contact with the outer surface of the motor output shaft (101) to achieve auxiliary support for the motor output shaft (101).

2. A reluctance motor with optimized rotor dynamic balance according to claim 1, characterized in that: The dynamic balancing optimization structure (2) comprises a fixed seat (201) fixedly mounted on a reluctance motor body (1); a side of the fixed seat (201) away from the reluctance motor body (1) is slidably connected to a movable seat (202); both sides of the movable seat (202) are fixedly connected to support arms (206); a support shaft (207) is mounted on the support arm (206); a support wheel (208) is provided on the outer surface of the support shaft (207) via a bearing sleeve; and the outer surface of the support wheel (208) is in contact with the motor output shaft (101).

3. A reluctance motor with optimized rotor dynamic balance according to claim 2, characterized in that: A sliding groove (203) is provided on a side of the movable seat (202) away from the fixed seat (201); an elongated hole (204) is provided between the sliding groove (203) and the movable seat (202); a fixing bolt (205) is slidably connected in the sliding groove (203); one end of the fixing bolt (205) passes through the elongated hole (204) and is connected to the fixed seat (201); and a screw hole for connecting with the fixing bolt (205) is provided on the fixed seat (201).

4. A reluctance motor with optimized rotor dynamic balance according to claim 3, characterized in that: A detection sensor (209) is installed on one side of the fixing seat (201) close to the motor output shaft (101), the detection sensor (209) is connected to a controller, and an alarm (3) connected to the controller is installed on the reluctance motor body (1).

5. A reluctance motor with optimized rotor dynamic balance according to claim 4, characterized in that: A protective part is provided on one side of the reluctance motor body (1) close to the dynamic balancing optimization structure (2), and the protective part is used to protect the dynamic balancing optimization structure (2).

6. A reluctance motor with optimized rotor dynamic balance according to claim 5, characterized in that: The protection part comprises a protection cover (4) arranged on a side of the reluctance motor body (1) close to the dynamic balance optimization structure (2), and the protection cover (4) is provided with a through hole (401) through which the output shaft (101) of the power supply machine passes.

7. A reluctance motor with optimized rotor dynamic balance according to claim 6, characterized in that: The outer surface of the protective cover (4) is fixedly connected to a plurality of second mounting seats (402), the outer surface of the reluctance motor body (1) is fixedly connected to a plurality of first mounting seats (103), and the first mounting seats (103) and the second mounting seats (402) are connected via bolts.

8. The reluctance motor with optimized rotor dynamic balance according to claim 7, characterized in that: The outer surface of the reluctance motor body (1) is provided with a plurality of heat sinks (104), and the reluctance motor body (1) is provided with a plurality of first mounting holes (102).

9. The reluctance motor with optimized rotor dynamic balance according to claim 1, characterized in that: The outer surface of the reluctance motor body (1) is provided with a heat dissipation structure (5); the heat dissipation structure (5) comprises two heat exchange boxes (501) respectively located on both sides of the reluctance motor body (1), the heat exchange boxes (501) having a cold water chamber (502) therein, and a plurality of grooves (503) are provided on a mutually adjacent side of the two heat exchange boxes (501), the inner walls of the grooves (503) being plugged into the heat sink (104).

10. The reluctance motor with optimized rotor dynamic balance according to claim 9, characterized in that: The heat exchange box (501) is provided with a first connecting pipe (506) and a second connecting pipe (507) which are in communication with the cold water chamber (502); a plurality of connecting plates (508) are connected between the two heat exchange boxes (501); the heat exchange box (501) is connected with a mounting plate (504); the mounting plate (504) is provided with second mounting holes (505); the number and positions of the second mounting holes (505) correspond to the number and positions of the first mounting holes (102).

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