Equipment operation state monitoring device
By installing a monitoring component with a heat-conducting ring and temperature sensor on the motor, combined with speed and phase loss detectors, the problem of insufficient monitoring parameters for motor operation status is solved, achieving higher precision motor status monitoring and fault early warning.
Patent Information
- Application Number
- CN202422829416.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing motor operation status monitoring devices only monitor speed and current parameters, resulting in a limited number of monitored parameters, which is not conducive to fault analysis.
The monitoring components include a heat-conducting ring and a temperature sensor. The heat-conducting ring absorbs heat from the motor evenly to indirectly monitor the temperature. Combined with a speed detector and a phase loss detector, the motor's speed, temperature, and current parameters are monitored.
It improves the accuracy and reliability of motor operation status monitoring, can detect local overheating in a timely manner, prevent motor failure for a long time, and simplifies the number of temperature sensors used.
Smart Images
Figure CN223513316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric motor operation status monitoring technology, and in particular to a device for monitoring equipment operation status. Background Technology
[0002] Electric motors, with their advantages of simple structure, small size, light weight, and high power density, are increasingly used in various industries, such as new energy electric vehicles, variable frequency air conditioners, and elevators. The reliability of motor operation is becoming increasingly important, constantly impacting user safety and experience. Improving motor operational stability and enhancing motor operating status monitoring capabilities are key to ensuring safe motor operation.
[0003] In existing technologies, monitoring the motor's motion status typically involves using a speed detector to measure the output shaft speed and a phase loss detector to measure the input current parameters. Since motors are usually equipped with cooling fans, their operating temperature is typically not monitored. In other words, current technologies generally only monitor speed and current parameters, resulting in a limited set of monitored parameters, which is detrimental to fault analysis.
[0004] Therefore, existing motor operation status monitoring devices suffer from a lack of monitoring parameters. Utility Model Content
[0005] The present invention provides a device for monitoring the operating status of equipment, which solves the technical problem of insufficient monitoring parameters in existing motor operating status monitoring devices.
[0006] Some implementation schemes for solving the above-mentioned technical problems include:
[0007] A device for monitoring the operating status of an equipment includes a base, a motor mounted on the base, and a monitoring component for monitoring the operating status of the motor mounted on the motor.
[0008] The monitoring component includes a speed detector that monitors the rotational speed of the output shaft of the motor. The speed detector includes a rotating disk fixed to the output shaft and a detection disk mounted on the motor for detecting the rotational speed of the rotating disk.
[0009] The monitoring component further includes a temperature monitor for monitoring the motor temperature. The temperature monitor includes a heat-conducting ring, which is sleeved on the motor. There are at least two heat-conducting rings, which are evenly arranged on the motor along the length of the motor. The temperature monitor also includes a temperature sensor for detecting the temperature of the heat-conducting ring.
[0010] The motor is equipped with a junction box, the junction box is equipped with terminals, and the monitoring component also includes a phase loss detector, which is electrically connected to the terminals.
[0011] Preferably, the output shaft includes a mounting part for mounting the rotary disk and an output part for outputting power. The mounting part and the output part are an integral structure and are coaxially arranged. The rotary disk is mounted on the mounting part by an interference fit.
[0012] Preferably, the mounting part is provided with a spline groove, and the rotating disk is provided with a spline body that mates with the spline groove, wherein the spline body and the rotating disk are an integral structure.
[0013] Preferably, the detection disc is fixed to the motor by screws, the detection disc is located between the rotating disc and the motor, and the detection disc is provided with a hole through which the output shaft passes.
[0014] Preferably, the motor is also provided with a protective cover, which is located outside the speed detector. The protective cover is cylindrical and is fixed to the motor by screws.
[0015] Preferably, the protective cover has a mounting shoulder at one end near the motor, the screws for fixing the protective cover are located on the mounting shoulder, and a protective ring is provided at the other end of the protective cover away from the mounting shoulder, the inner diameter of the protective ring being smaller than the outer diameter of the rotating disk.
[0016] Preferably, the mounting shoulder and the protective cover are an integral structure, and the protective ring and the protective cover are an integral structure.
[0017] Preferably, the thermal conductivity coefficient of the heat-conducting ring is greater than that of the motor housing, and the heat-conducting ring and the housing are in surface contact.
[0018] Preferably, the motor is provided with heat sinks, and a heat dissipation groove is formed between two adjacent heat sinks. The heat conduction ring is provided with ribs that extend to the heat dissipation groove and contact the side wall of the heat dissipation groove. The ribs and the heat conduction ring are an integral structure.
[0019] Preferably, the phase loss detector is installed in the junction box, and the phase loss detector is equipped with indicator lights, each of which corresponds to an independent terminal.
[0020] Compared with the prior art, the present invention has the following advantages:
[0021] By setting up a heat-conducting ring and a temperature sensor, the temperature sensor indirectly detects the motor temperature through the heat-conducting ring. That is, the high temperature generated during motor operation is conducted to the heat-conducting ring, and the temperature of the entire heat-conducting ring rises uniformly. As a result, the temperature sensor only needs to detect the temperature of the heat-conducting ring to monitor the temperature of the entire motor, reducing the number of temperature sensors used and improving the monitoring accuracy of the temperature monitor.
[0022] Meanwhile, by setting up a temperature monitor, along with a speed monitor and a phase loss detector, more motor operating parameters can be monitored, which is beneficial for subsequent fault analysis.
[0023] In addition, by setting at least two heat-conducting rings, and by distributing the at least two heat-conducting rings evenly along the length of the motor, even if the motor experiences local overheating, the temperature sensor can detect the abnormal parameter in a timely manner through the heat-conducting rings, thereby preventing the motor from running malfunctioning for a long time and improving the monitoring accuracy of the equipment operation status monitoring device. Attached Figure Description
[0024] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.
[0025] Figure 1 This is a schematic diagram of the internal structure of this utility model.
[0026] Figure 2 This is a schematic diagram of the present invention.
[0027] Figure 3 This is an exploded view of the present invention.
[0028] Figure 4 for Figure 2 A diagram omitting the protective shield.
[0029] Figure 5 for Figure 4 A schematic diagram omitting the speed detector.
[0030] Figure 6 This is a schematic diagram of a rotating disk.
[0031] As shown in the figure:
[0032] 1. Base.
[0033] 2. Motor, 21. Junction box, 22. Output shaft, 221. Output section, 222. Mounting section, 2221. Spline groove, 23. Protective cover, 231. Mounting shoulder, 232. Protective ring.
[0034] 3. Monitoring components, 31. Speed detector, 311. Rotary disk, 3111. Spline body, 312. Detection disk, 32. Temperature monitor, 321. Heat-conducting ring, 33. Phase loss detector, 331. Indicator light. Detailed Implementation
[0035] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.
[0036] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.
[0037] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Reference Figures 1 to 6 As shown, a device for monitoring the operating status of an equipment includes a base 1, a motor 2 is provided on the base 1, and a monitoring component 3 for monitoring the operating status of the motor 2 is provided on the motor 2.
[0039] The monitoring component 3 includes a speed detector 31 that monitors the rotational speed of the output shaft 22 of the motor 2. The speed detector 31 includes a rotating disk 311 fixed to the output shaft 22 and a detection disk 312 installed on the motor 2 for detecting the rotational speed of the rotating disk 311.
[0040] The monitoring component 3 further includes a temperature monitor 32 for monitoring the temperature of the motor 2. The temperature monitor 32 includes a heat-conducting ring 321, which is sleeved on the motor 2. There are at least two heat-conducting rings 321, which are evenly arranged on the motor 2 along the length direction of the motor 2. The temperature monitor also includes a temperature sensor for detecting the temperature of the heat-conducting ring 321.
[0041] The motor 2 is provided with a junction box 21, the junction box 21 is provided with terminals, and the monitoring component 3 also includes a phase loss detector 33, which is electrically connected to the terminals.
[0042] The velocity detector 31 and the phase loss detector 33 are common electronic components in the prior art, and their specific structures and working principles are not limited.
[0043] Reference Figures 1 to 6 As shown, the temperature monitor 32 mainly includes a heat-conducting ring 321 and a temperature sensor. The temperature sensor is a common electronic component in existing technology. The heat-conducting ring 321 refers to a ring-shaped structure with a high thermal conductivity coefficient. The heat-conducting ring 321 is in contact with the motor 2 and is mainly used to absorb the heat generated during the operation of the motor 2, and to evenly distribute the heat on the heat-conducting ring 321, so that the temperature of each position of the heat-conducting ring 321 is uniform. The temperature parameters of the heat-conducting ring 321 are then monitored by the temperature sensor.
[0044] The temperature sensor indirectly monitors the temperature of the motor 2 through the heat-conducting ring 321, which can save the amount of temperature sensor used and simplify the structure of the temperature monitor 32.
[0045] In some embodiments, the output shaft 22 includes a mounting portion 222 for mounting the rotating disk 311 and an output portion 221 for outputting power. The mounting portion 222 and the output portion 221 are integral structures, and the mounting portion 222 and the output portion 221 are coaxially arranged. The rotating disk 311 is mounted on the mounting portion 222 by an interference fit.
[0046] The mounting part 222 is provided with a spline groove 2221, and the rotating disk 311 is provided with a spline body 3111 that mates with the spline groove 2221. The spline body 3111 and the rotating disk 311 are an integral structure.
[0047] To improve the strength of the output shaft 22, a spline body 3111 can be provided in the mounting part 222, and a spline groove 2221 can be provided in the rotating disk 311. The positions of the spline body 3111 and the spline groove 2221 are not limited and can be reasonably determined according to needs.
[0048] The rotating disk 311 drives the unit under test to rotate during the rotation process, and the detection disk 312 detects the signal of the unit under test in order to detect the speed of the motor 2.
[0049] The detection disk 312 is fixed to the motor 2 by screws. The detection disk 312 is located between the rotating disk 311 and the motor 2. The detection disk 312 is provided with a hole through which the output shaft 22 passes.
[0050] Reference Figures 1 to 6 As shown, in some embodiments, the motor 2 is further provided with a protective cover 23, which is disposed outside the speed detector 31. The protective cover 23 is cylindrical and is fixed to the motor 2 by screws.
[0051] The protective cover 23 has a mounting shoulder 231 at one end near the motor 2. The screw that fixes the protective cover 23 is located on the mounting shoulder 231. The protective cover has a protective ring 232 at one end away from the mounting shoulder 231. The inner diameter of the protective ring 232 is smaller than the outer diameter of the rotating disk 311.
[0052] The mounting shoulder 231 and the protective cover 23 are an integral structure, and the protective ring 232 and the protective cover 23 are an integral structure.
[0053] The protective cover 23 is mainly for safety protection. Specifically, when the speed detector 31 detects the rotation speed, the rotating disk 311 is in a rotating state. Therefore, a protective cover 23 needs to be installed on the outside of the rotating disk 311 to prevent the rotating disk 311 from breaking or being damaged for other reasons, and the debris of the rotating disk 311 from flying.
[0054] The assembly process is as follows: first, the detection disk 312 is installed on the motor 2, then the rotating disk 311 is installed on the mounting part 222, and finally the protective cover 23 is installed on the motor 2.
[0055] Reference Figures 1 to 6 As shown, in some embodiments, the thermal conductivity coefficient of the heat-conducting ring 321 is greater than that of the housing of the motor 2, and the heat-conducting ring 321 is in surface contact with the housing.
[0056] The motor 2 is provided with heat sinks, and a heat dissipation groove is formed between two adjacent heat sinks. The heat conduction ring 321 is provided with ribs, which extend to the heat dissipation groove and contact the side wall of the heat dissipation groove. The ribs and the heat conduction ring 321 are an integral structure.
[0057] The specific material of the heat-conducting ring 321 is not limited and can be reasonably determined according to needs. Generally, the material of the heat-conducting ring 321 is determined based on the material of the outer shell, and the thermal conductivity of the heat-conducting ring 321 is greater than that of the outer shell. After the heat generated by the outer shell is conducted to the heat-conducting ring 321, the heat is quickly conducted on the heat-conducting ring 321, making the entire heat-conducting ring 321 have a uniform temperature, thereby enabling the temperature sensor to have higher detection accuracy.
[0058] The larger the contact area between the heat-conducting ring 321 and the outer casing, the easier it is for the heat generated by the outer casing to be conducted to the heat-conducting ring 321.
[0059] In some embodiments, the phase loss detector 33 is installed in the junction box 21, and the phase loss detector 33 is provided with indicator lights 331, each of the indicator lights 331 corresponding to an independent terminal.
[0060] Indicator light 331 can be an LED light, used to indicate the terminal of the phase loss. When a phase loss fault occurs in motor 2, it helps maintenance personnel to troubleshoot the fault in a timely manner.
[0061] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.
[0062] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.
[0063] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, these details are still within the scope of the subject matter technical solution of this utility model without departing from it.
Claims
1. A device for monitoring the operating status of equipment, characterized in that: Includes a base (1), the base (1) is provided with a motor (2), and the motor (2) is provided with a monitoring component (3) for monitoring the operating status of the motor (2); The monitoring component (3) includes a speed detector (31) for monitoring the rotational speed of the output shaft (22) of the motor (2). The speed detector (31) includes a rotating disk (311) fixed to the output shaft (22) and a detection disk (312) installed on the motor (2) for detecting the rotational speed of the rotating disk (311). The monitoring component (3) further includes a temperature monitor (32) for monitoring the temperature of the motor (2). The temperature monitor (32) includes a heat-conducting ring (321), which is sleeved on the motor (2). There are at least two heat-conducting rings (321), which are evenly arranged on the motor (2) along the length direction of the motor (2). The temperature monitor also includes a temperature sensor for detecting the temperature of the heat-conducting ring (321). The motor (2) is provided with a junction box (21), the junction box (21) is provided with terminals, and the monitoring component (3) further includes a phase loss detector (33), the phase loss detector (33) being electrically connected to the terminals.
2. The equipment operation status monitoring device according to claim 1, characterized in that: The output shaft (22) includes a mounting part (222) for mounting the rotating disk (311) and an output part (221) for outputting power. The mounting part (222) and the output part (221) are integral structures, and the mounting part (222) and the output part (221) are coaxially arranged. The rotating disk (311) is mounted on the mounting part (222) by interference fit.
3. The equipment operation status monitoring device according to claim 2, characterized in that: The mounting part (222) is provided with a spline groove (2221), and the rotating disk (311) is provided with a spline body (3111) that mates with the spline groove (2221). The spline body (3111) and the rotating disk (311) are an integral structure.
4. The equipment operation status monitoring device according to claim 3, characterized in that: The detection disk (312) is fixed to the motor (2) by screws. The detection disk (312) is located between the rotating disk (311) and the motor (2). The detection disk (312) is provided with a hole through which the output shaft (22) passes.
5. The equipment operation status monitoring device according to claim 4, characterized in that: The motor (2) is also provided with a protective cover (23), which is located outside the speed detector (31). The protective cover (23) is cylindrical and is fixed to the motor (2) by screws.
6. The equipment operation status monitoring device according to claim 5, characterized in that: The protective cover (23) has a mounting shoulder (231) at one end near the motor (2), and the screw that fixes the protective cover (23) is located on the mounting shoulder (231). The protective cover has a protective ring (232) at one end away from the mounting shoulder (231), and the inner diameter of the protective ring (232) is smaller than the outer diameter of the rotating disk (311).
7. The equipment operation status monitoring device according to claim 6, characterized in that: The mounting shoulder (231) and the protective cover (23) are an integral structure, and the protective ring (232) and the protective cover (23) are an integral structure.
8. The equipment operation status monitoring device according to claim 1, characterized in that: The thermal conductivity coefficient of the heat-conducting ring (321) is greater than that of the outer casing of the motor (2), and the heat-conducting ring (321) is in surface contact with the outer casing.
9. The equipment operation status monitoring device according to claim 8, characterized in that: The motor (2) is provided with heat sinks, and a heat dissipation groove is formed between two adjacent heat sinks. The heat conduction ring (321) is provided with ribs, which extend to the heat dissipation groove and contact the side wall of the heat dissipation groove. The ribs and the heat conduction ring (321) are an integral structure.
10. The equipment operation status monitoring device according to claim 1, characterized in that: The phase loss detector (33) is installed in the junction box (21). The phase loss detector (33) is equipped with indicator lights (331), and each indicator light (331) corresponds to an independent terminal.