Reluctance motor operation monitoring device

By using an all-condition adaptive mechanized active cooling system and buffer components, the problem of false triggering of monitoring devices caused by temperature rise in reluctance motors is solved, achieving highly reliable condition monitoring with zero false alarms and zero missed detections, thereby enhancing motor stability and lifespan.

CN121150418APending Publication Date: 2025-12-16JIANGSU JINGZHI MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202511353613.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

When traditional reluctance motors operate under high load for extended periods, abnormal temperature increases can cause monitoring devices to falsely trigger fault signals, affecting equipment stability and measurement accuracy.

Method used

The design incorporates a full-condition adaptive mechanized active cooling system with buffer components to provide a continuous constant temperature operating environment, block false triggering fault signals caused by temperature rise, and enhance motor stability and measurement accuracy.

Benefits of technology

Achieve zero false alarms and zero missed detections, ensuring the motor operates normally under any conditions, extending its service life, reducing interference from false characteristic signals, and providing highly reliable condition monitoring.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121150418A_ABST
    Figure CN121150418A_ABST
Patent Text Reader

Abstract

A reluctance motor operation monitoring device provided by the present invention comprises a monitoring device and a cooling mechanism, the cooling mechanism is arranged outside the monitoring device, the cooling mechanism comprises a protective cover, a fixing frame, a connecting plate, an exhaust fan and an air outlet net window, the protective cover is installed outside the monitoring device, and the protective cover is provided with an air inlet and an air outlet. The fixing frame is installed on the inner wall of the protective cover, one end of the connecting plate is connected with the fixing frame, the other end of the connecting plate is connected with the exhaust fan, and the air outlet net window is installed at an air outlet of the protective cover. According to the reluctance motor operation monitoring device provided by the embodiment of the invention, through the design of the cooling mechanism, the traditional passive heat dissipation is comprehensively upgraded into a full-working-condition self-adaptive mechanical active cooling system, a continuous constant-temperature operation environment is provided for the motor, a monitoring device false triggering fault signal channel caused by the temperature rise of the motor is blocked, and the reliability of the motor is improved. And any unnecessary interference of irrelevant thermal disturbance factors on the system stability and the measurement precision is shielded to the maximum extent.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the technical field of reluctance motors, and more particularly to a reluctance motor operation monitoring device. Background Technology

[0002] A reluctance motor is a continuously operating electrical drive device based on the "principle of minimum magnetic reluctance." It generates synchronous torque through changes in the magnetic permeability of the stator and rotor to drive the rotor's rotation, unlike the magnetic field interaction mechanism of traditional AC / DC motors. The stator structure is similar to that of ordinary synchronous or asynchronous motors, often employing two-phase or single-phase capacitor windings. The rotor is a stacked structure of double-salient-pole silicon steel sheets without windings or permanent magnets, and can have single-phase or multi-phase excitation modes.

[0003] Currently, under prolonged high-load operation, the operating status of traditional reluctance motors directly affects the stability of the production system and the continuity of subsequent processes. As operating time accumulates, if the motor body temperature rises abnormally, it may not only affect the insulation performance and service life of the equipment, but also easily cause the temperature monitoring device to falsely trigger fault signals, resulting in unplanned shutdowns or false alarms, causing unnecessary interference to production operations. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this invention is to propose a reluctance motor operation monitoring device that, through the design of the cooling mechanism, comprehensively upgrades the traditional passive heat dissipation to a full-condition adaptive mechanized active cooling system. This provides the motor with a continuous constant temperature operating environment through highly reliable, accurate, low-noise, and energy-saving mechanized cooling methods, completely blocking the fault signal path of the monitoring device caused by the motor's own temperature rise, and maximally shielding any unnecessary interference from irrelevant thermal disturbance factors on the system stability and measurement accuracy.

[0006] To achieve the above objectives, the first aspect of this invention provides a reluctance motor operation monitoring device, comprising: a monitoring device, a cooling mechanism, and a buffer assembly. The cooling mechanism is externally mounted on the monitoring device and includes a protective cover, a mounting frame, a connecting plate, an exhaust fan, and an air outlet grille. The protective cover is installed externally on the monitoring device and has an air inlet and an air outlet.

[0007] Specifically, the fixing bracket is installed on the inner wall of the protective cover, one end of the connecting plate is connected to the fixing bracket, and the other end of the connecting plate is connected to the exhaust fan.

[0008] Specifically, the air outlet mesh is installed at the air outlet of the protective cover, and the air inlet of the protective cover is equipped with a filter window.

[0009] Specifically, a warning light and an alarm are installed on the outer wall of the protective cover.

[0010] Specifically, the inner wall of the protective cover is equipped with a cushioning pad and a fixing plate.

[0011] Specifically, a dustproof net is installed on the air outlet window, and a safety door is installed on the protective cover.

[0012] Specifically, the monitoring device is externally equipped with a buffer assembly, which includes a buffer sleeve, a fixing block, a spring, and a fixing post.

[0013] Specifically, the buffer sleeve is fitted over the outside of the motor, and the fixing block is installed on the outer wall of the buffer sleeve.

[0014] Specifically, one end of the spring is connected to the fixing block, and the other end of the spring is connected to the fixing post.

[0015] Specifically, the fixing post is installed on the buffer pad, and a buffer ring is fitted on the outer wall of the fixing post.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The reluctance motor operation monitoring device of the present invention, through the design of the cooling mechanism, comprehensively upgrades the traditional passive heat dissipation to a full-condition adaptive mechanized active cooling system. This provides the motor with a continuous constant temperature operating environment through highly reliable, accurate, low-noise, and energy-saving mechanized cooling, completely blocking the fault signal path of the monitoring device caused by the motor's own temperature rise. It also maximizes the shielding of any unnecessary interference from irrelevant thermal disturbance factors on system stability and measurement accuracy. Simultaneously, the buffer component, through the synergistic action of the buffer sleeve and spring, buffers the vibration of the motor during operation, preventing the magnetic core from shaking due to body vibration, which could lead to false fault signals from the monitoring device. This reduces unnecessary interference from irrelevant factors and also enhances the service life of the reluctance motor. Through the above design, it completely blocks false characteristic signals caused by other influences, ensuring that the monitoring device 1 will not misjudge a normal motor as abnormal under any continuous operating condition, thereby achieving highly reliable condition monitoring with zero false alarms, zero missed detections, and a long lifespan.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1This is a schematic diagram of a reluctance motor operation monitoring device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the cooling mechanism of a reluctance motor operation monitoring device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the buffer assembly structure of a reluctance motor operation monitoring device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a reluctance motor operation monitoring device according to an embodiment of the present invention, in which a warning light and an alarm are used together; Figure 5 This is a top view schematic diagram of a reluctance motor operation monitoring device according to an embodiment of the present invention.

[0019] Reference numerals: 1. Monitoring device; 2. Cooling mechanism; 21. Protective cover; 22. Fixing frame; 23. Connecting plate; 24. Exhaust fan; 25. Filter window; 26. Air outlet mesh window; 27. Dustproof net; 3. Buffer assembly; 31. Buffer sleeve; 32. Fixing block; 33. Spring; 34. Fixing column; 35. Buffer ring; 4. Warning light; 5. Alarm; 6. Buffer pad; 7. Fixing plate; 8. Safety door. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] A reluctance motor operation monitoring device according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, an embodiment of the present invention provides a reluctance motor operation monitoring device, comprising: a monitoring device 1 and a cooling mechanism 2.

[0023] A cooling mechanism 2 is installed on the outside of the monitoring device 1.

[0024] The cooling mechanism 2 includes a protective cover 21, a fixing frame 22, a connecting plate 23, an exhaust fan 24, and an air outlet mesh 26.

[0025] The protective cover 21 is installed on the outside of the monitoring device 1, and the protective cover 21 has an air inlet and an air outlet. The fixing bracket 22 is installed on the inner wall of the protective cover 21. One end of the connecting plate 23 is connected to the fixing bracket 22, and the other end of the connecting plate 23 is connected to the exhaust fan 24. The air outlet window 26 is installed at the air outlet of the protective cover 21.

[0026] Specifically, when the reluctance motor is working, the monitoring device 1 detects the motor status and the cooling mechanism 2 cools the temperature generated by the motor during operation. The high-precision and high-reliability operation of the reluctance motor is maintained continuously by a high-efficiency, clean, and low-noise forced air cooling method, which avoids the monitoring device 1 from displaying abnormal motor status due to excessive body temperature. First, the exhaust fan 24 installed on the fixed frame 22 is started, which delivers outside air into the protective cover 21 through the air inlet of the protective cover 21 to cool the motor. Then, the air is blown out through the air outlet window 26 to complete the heat exchange and achieve the cooling effect. At the same time, the connecting plate 23 installs and fixes the exhaust fan 24 on the fixed frame 22. In addition to the air filtration function, the protective cover 21 can also prevent vertical dripping water and dust from accumulating on the motor terminals, achieving triple protection against dust, dripping, and foreign objects.

[0027] In one embodiment of this application, such as Figure 3 As shown, a buffer assembly 3 is provided on the outside of the monitoring device 1.

[0028] The buffer assembly 3 includes a buffer sleeve 31, a fixing block 32, a spring 33, a fixing post 34, and a buffer ring 35.

[0029] The buffer sleeve 31 is fitted onto the outside of the motor, the fixing block 32 is installed on the outer wall of the buffer sleeve 31, one end of the spring 33 is connected to the fixing block 32, and the other end of the spring 33 is connected to the fixing post 34. The fixing post 34 is installed on the buffer pad 6, and the buffer ring 35 is fitted onto the outer wall of the fixing post 34.

[0030] Specifically, when the motor is working, the monitoring device 1 detects the working status of the motor. By setting the buffer component 3, the vibration of the motor during operation is buffered to prevent the magnetic core from shaking after long-term operation, which would cause the monitoring device 1 to display an abnormality and mistakenly identify a normal motor as an error and issue an alarm. First, the buffer sleeve 31 is fitted on the motor to provide buffer protection for the entire motor. Second, the fixing block 32 installed on the buffer sleeve 31 is connected to the spring 33. When subjected to vibration, the spring 33 contracts to buffer the vibration and then returns to its original position. Then, the fixing column 34 mainly fixes the spring 33 to prevent the spring 33 from shaking horizontally when it is subjected to external force and reducing the buffering effect.

[0031] In one embodiment of this application, such as Figure 2 As shown, the air inlet of the protective cover 21 is equipped with a filter window 25.

[0032] Understandably, by installing the filter window 25, dust in the air supplied to the protective cover 21 is filtered, minimizing the amount of dust entering the interior of the protective cover 21 during cooling.

[0033] In one embodiment of this application, such as Figure 4As shown, a warning light 4 is installed on the outer wall of the protective cover 21.

[0034] Understandably, by installing the warning light 4, when the monitoring device 1 detects a change in the motor's operating status, the warning light 4 will illuminate, prompting the staff to conduct an inspection.

[0035] In one embodiment of this application, such as Figure 4 As shown, an alarm 5 is installed on the outer wall of the protective cover 21.

[0036] Understandably, by setting up alarm 5, when monitoring device 1 detects a motor malfunction and stops, an alarm can be triggered to prompt staff to perform inspection and repair.

[0037] In one embodiment of this application, such as Figure 4 As shown, a cushioning pad 6 is installed on the inner wall of the protective cover 21.

[0038] Understandably, the installation of the buffer pad 6 enhances the stability of the motor base during operation, preventing the magnetic core from shaking due to the stress of the motor itself after long-term operation, which could cause the monitoring device 1 to display abnormalities.

[0039] In one embodiment of this application, such as Figure 1 As shown, a fixing plate 7 is installed on the inner wall of the protective cover 21.

[0040] Understandably, the installation of the fixing plate 7 enhances the fixation of the monitoring device 1, provides a stable environment for monitoring, and prevents the monitoring device 1 from shaking when the motor is working, thus causing display errors.

[0041] In one embodiment of this application, such as Figure 2 As shown, a dustproof net 27 is installed on the air outlet window 26.

[0042] It is understandable that by installing the dustproof net 27, dust is prevented from entering the protective cover 21 and contaminating the motor, which could cause the monitoring device 1 to mistakenly detect an abnormal motor operating status.

[0043] In one embodiment of this application, such as Figure 3 As shown, a buffer ring 35 is fitted on the outer wall of the fixed column 34.

[0044] It is understandable that by installing the buffer ring 35, the force on the fixed column 34 is buffered, the stability of the motor operation is enhanced, the stress on the bottom of the motor by the spring 33 is reduced, and the motor is effectively protected.

[0045] In one embodiment of this application, such as Figure 1 As shown, a safety door 8 is installed on the protective cover 21.

[0046] Understandably, with the installation of safety door 8, after the monitoring device 1 detects a motor malfunction, the staff can open safety door 8 to repair the motor.

[0047] Working principle: When the reluctance motor is working, the monitoring device 1 detects the motor status. The cooling mechanism 2 cools the temperature generated by the motor during operation, continuously maintaining the high precision and high reliability of the reluctance motor through efficient, clean, and low-noise forced air cooling. This prevents the monitoring device 1 from displaying abnormal motor status due to excessively high body temperature. First, the exhaust fan 24 installed on the fixed frame 22 starts, delivering outside air into the protective cover 21 through the air inlet to cool the motor. Then, the air passes through the exhaust fan 24... The air is blown out through the ventilation grille 26, completing heat exchange and achieving a cooling effect. Simultaneously, the connecting plate 23 secures the exhaust fan 24 to the mounting bracket 22. In addition to its air filtration function, the protective cover 21 prevents vertical dripping water and dust accumulation on the motor terminals, providing triple protection against dust, dripping, and foreign objects. A dustproof net 27 is installed on the protective cover 21 to prevent dust from entering and contaminating the motor, thus preventing the monitoring device 1 from mistakenly detecting an abnormal motor operating status. Furthermore, when the motor is operating, the monitoring device 1 monitors the motor's operating status. The testing process utilizes the buffer component 3 to cushion the vibration of the motor during operation, preventing the magnetic core from shaking after prolonged operation and causing the monitoring device 1 to display an abnormality, mistakenly identifying a normal motor as an malfunction and triggering an alarm. Firstly, the buffer sleeve 31 is fitted onto the motor, providing overall buffer protection. Secondly, the fixing block 32 mounted on the buffer sleeve 31 is connected to a spring 33. When subjected to vibration, the spring 33 contracts to buffer the vibration and then returns to its original position. The fixing column 34 primarily fixes the spring 33, buffering the force on the fixing column 34, enhancing the stability of the motor operation, reducing the stress on the bottom of the motor from the spring 33, and effectively protecting the motor. Simultaneously, the buffer pad 6 enhances the stability of the motor base during operation, preventing the magnetic core from shaking due to the motor's own stress after prolonged operation, thus preventing the monitoring device 1 from displaying an abnormality. Furthermore, when the monitoring device 1 detects a fault, the warning light 4, in conjunction with the alarm 5, alerts the personnel. After being alerted, the personnel open the safety door 8 installed on the protective cover 21 to promptly inspect and repair the motor.

[0048] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A reluctance motor operation monitoring device, characterized in that, include: The monitoring device (1), cooling mechanism (2), and buffer assembly (3) are provided. The cooling mechanism (2) is provided on the outside of the monitoring device (1). The cooling mechanism (2) includes a protective cover (21), a fixing frame (22), a connecting plate (23), an exhaust fan (24), and an air outlet window (26). The protective cover (21) is installed on the outside of the monitoring device (1), and the protective cover (21) has an air inlet and an air outlet.

2. The reluctance motor operation monitoring device according to claim 1, characterized in that, The fixing frame (22) is installed on the inner wall of the protective cover (21), one end of the connecting plate (23) is connected to the fixing frame (22), and the other end of the connecting plate (23) is connected to the exhaust fan (24).

3. The reluctance motor operation monitoring device according to claim 1, characterized in that, The air outlet window (26) is installed at the air outlet of the protective cover (21), and the air inlet of the protective cover (21) is equipped with a filter window (25).

4. The reluctance motor operation monitoring device according to claim 1, characterized in that, The outer wall of the protective cover (21) is equipped with a warning light (4) and an alarm (5).

5. The reluctance motor operation monitoring device according to claim 1, characterized in that, The inner wall of the protective cover (21) is equipped with a buffer pad (6) and a fixing plate (7).

6. The reluctance motor operation monitoring device according to claim 1, characterized in that, A dustproof net (27) is installed on the air outlet window (26), and a safety door (8) is installed on the protective cover (21).

7. The reluctance motor operation monitoring device according to claim 1, characterized in that, The monitoring device (1) is provided with a buffer assembly (3) on its exterior. The buffer assembly (3) includes a buffer sleeve (31), a fixing block (32), a spring (33), and a fixing post (34).

8. The reluctance motor operation monitoring device according to claim 1, characterized in that, The buffer sleeve (31) is fitted onto the outside of the motor, and the fixing block (32) is installed on the outer wall of the buffer sleeve (31).

9. A reluctance motor operation monitoring device according to claim 2, characterized in that, One end of the spring (33) is connected to the fixing block (32), and the other end of the spring (33) is connected to the fixing post (34).

10. A reluctance motor operation monitoring device according to claim 2, characterized in that, The fixing post (34) is installed on the buffer pad (6), and a buffer ring (35) is fitted on the outer wall of the fixing post (34).