Motor protector with fault early warning function

By introducing structures such as a mounting base, mounting tube, connecting rod, and locking groove into the motor protector, the problems of sensor aging or inconvenient daily maintenance are solved, enabling quick disassembly and fixation of the sensor, and improving maintenance convenience and stability.

CN224249346UActive Publication Date: 2026-05-15ZHEJIANG KAIDI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG KAIDI ELECTRIC CO LTD
Filing Date
2025-02-25
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing motor protectors with fault warning functions have multiple built-in sensors, which can lead to sensor aging or difficulty in quick disassembly during routine maintenance, increasing maintenance difficulty and labor intensity.

Method used

A motor protector was designed, which enables the rapid disassembly and fixation of the sensor by setting a fixed base, a fixed tube, a connecting rod, a connecting seat, a locking groove, and a fixing mechanism. The installation and disassembly process of the sensor is simplified by using the cooperation of the locking ring and the locking plate.

Benefits of technology

This reduces the labor intensity and difficulty of sensor maintenance, improves maintenance convenience, and increases the stability and fixation of the sensors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor protectors, in particular to a motor protector with a fault early warning function, and aims to solve the problem that a plurality of sensors are arranged in a motor protector with a fault early warning function in the prior art, so that the motor protector cannot be damaged when the sensors are aged or daily maintained. The motor protector comprises a motor protector shell and a plurality of sensors arranged in the motor protector shell, and the motor protector shell comprises the motor protector shell and the plurality of sensors arranged in the motor protector shell. Due to the fact that the connecting base fixes the sensor, and the connecting rod is fixedly connected with the connecting base, the fixing mechanism can release the connecting rod by rotating the locking ring, quick release of the connecting rod can be completed, and maintenance personnel can quickly complete disassembly of the sensor; in this way, the labor intensity and difficulty are reduced when a maintainer disassembles the sensor for maintenance, and the maintenance convenience is improved.
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Description

Technical Field

[0001] This utility model relates to the field of motor protector technology, and more specifically, to a motor protector with fault early warning function. Background Technology

[0002] A motor protector with fault warning function is a device specifically designed for monitoring and protecting electric motors. It can track the motor's operating status in real time and promptly identify potential fault risks. The protector monitors key indicators such as current, voltage, temperature, and vibration through built-in sensors. When an abnormality is detected, it can quickly issue an alarm to remind operators to take measures. Its core is the data processing unit, which analyzes the monitoring data through algorithms to determine whether the motor is in a normal operating state. Once a fault or abnormality is detected, the protector will not only notify the user through visual and audible alarms, but also transmit information to a remote monitoring system through a communication interface. This device aims to improve the operational reliability of motors, reduce downtime due to faults, and lower maintenance costs, providing more efficient safety assurance for industrial production.

[0003] However, during use, due to the multiple sensors built in, it is inconvenient for maintenance personnel to quickly disassemble individual sensors when the sensors age or during routine maintenance, which increases the difficulty and convenience of maintenance. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a motor protector with fault early warning function. This solves the problem that in the existing motor protector with fault early warning function, due to the multiple sensors built in it, maintenance personnel find it inconvenient to quickly disassemble individual sensors when the sensors are aging or during routine maintenance, which increases the difficulty and convenience of maintenance.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a motor protector with fault early warning function, including a motor protector housing and multiple sensors disposed therein, multiple fixing seats are fixedly connected to the inner wall of the motor protector housing, and multiple fixing tubes are fixedly connected to the other side of each fixing seat, a connecting rod is inserted into the inside of each fixing tube, and a connecting seat is fixedly connected to the other end of each connecting rod, and the connecting seat is fixedly connected to each of the sensors, and symmetrically arranged locking grooves are opened on the outer wall of each connecting rod, and a fixing mechanism for fixing the connecting rod is provided on the outer wall of the fixing tube;

[0006] The fixing mechanism includes an annular groove, which is formed on the outer wall of the fixing tube. The inner wall of the fixing tube has symmetrically arranged limiting grooves, which communicate with the interior of the annular groove. A locking ring is rotatably connected to the inner wall of the annular groove, and a locking plate is fixedly connected to the inner wall of the locking ring. When the locking ring rotates, it drives the locking plate into the limiting groove and engages with the locking groove.

[0007] Preferably, the outer wall of the connecting rod extends outward to form symmetrical protrusions, and the protrusions formed by the connecting rod correspond to the limiting grooves, and the locking grooves are respectively located at the protrusions formed by the connecting rod.

[0008] Preferably, an adjusting plate is fixedly connected to the outer wall of the locking ring, and the adjusting plate drives the locking ring to rotate under its own weight so that it is vertically downward.

[0009] Preferably, both sides of the protrusion formed by the connecting rod gradually extend in an arc towards the center, and the protrusion formed by the connecting rod forms a semi-circular structure after extension.

[0010] Preferably, the outer wall of the motor protector housing is fixedly connected with multiple fixing plates, and each fixing plate is provided with bolts that pass through it.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, by setting up a motor protector housing, sensors, a fixing base, a fixing tube, a connecting rod, a locking groove, and a fixing mechanism, uses multiple sensors to track the motor's operating status in real time and promptly identify potential fault risks. When an abnormality is detected, it can quickly issue an alarm to remind operators to take measures. When the sensor needs maintenance, since the connecting base fixes the sensor and the connecting rod is fixedly connected to the connecting base, rotating the locking ring releases the connecting rod, allowing maintenance personnel to quickly disassemble the sensor. Alternatively, inserting the connecting rod into the fixing tube and rotating the locking ring quickly fixes the sensor, thereby reducing the labor intensity and difficulty of disassembling the sensor for maintenance and increasing the convenience of maintenance.

[0013] 2. In this utility model, the protrusion formed by the extension of the outer wall of the connecting rod makes the protrusion of the connecting rod cooperate with the limiting groove when the connecting rod is inserted into the fixed tube, so that the connecting rod is locked with the limiting groove. Thus, after the connecting rod is inserted into the fixed tube, the connecting rod itself cannot rotate, thereby limiting the sensor through the connecting seat, making the sensor itself unable to rotate, and increasing the stability when fixing the sensor.

[0014] 3. In this utility model, the locking ring is always at the same angle under the gravity of the teardrop-shaped structure formed by the extension of the main body. When the maintenance personnel disassemble and fix the sensor, they only need to rotate the ring once. After the sensor is disassembled or fixed, the teardrop-shaped structure of the ring causes its center of gravity to deviate from the axis and rotate downward. Therefore, the ring will reset and rotate under the gravity of the teardrop-shaped structure formed by the extension of the main body, which increases the convenience of disassembling and fixing the sensor. The teardrop-shaped structure formed by the extension of the ring also makes it easy for the maintenance personnel to rotate the locking ring through the teardrop-shaped structure. When the maintenance personnel hold the sensor, they only need to use their fingers to flick the teardrop-shaped structure to rotate the locking ring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the housing of the motor protector in this utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of the connecting rod in this utility model;

[0018] Figure 4 This is a cross-sectional view of the fixing tube in this utility model;

[0019] Figure 5 This is a schematic diagram of the locking ring in this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Motor protector housing; 2. Sensor; 3. Mounting base; 4. Mounting tube; 5. Connecting rod; 6. Connecting base; 7. Locking groove; 8. Ring groove; 9. Limiting groove; 10. Locking ring; 11. Locking plate; 12. Mounting plate; 13. Bolt. Detailed Implementation

[0022] like Figures 1 to 5 As shown, this utility model relates to a motor protector with a fault warning function, including a motor protector housing 1 and multiple sensors 2 disposed therein. Multiple fixing seats 3 are fixedly connected to the inner wall of the motor protector housing 1. Multiple fixing tubes 4 are fixedly connected to the other side of each fixing seat 3. A connecting rod 5 is inserted into the inside of the fixing tube 4. A connecting seat 6 is fixedly connected to the other end of the connecting rod 5. The connecting seat 6 is fixedly connected to the sensor 2 respectively. The outer wall of each connecting rod 5 is provided with symmetrically arranged locking grooves 7. The outer wall of the fixing tube 4 is provided with a fixing mechanism for fixing the connecting rod 5.

[0023] The fixing mechanism includes an annular groove 8, which is formed on the outer wall of the fixing tube 4. The inner wall of the fixing tube 4 is provided with symmetrically arranged limiting grooves 9, which are connected to the interior of the annular groove 8. A locking ring 10 is rotatably connected to the inner wall of the annular groove 8, and a locking plate 11 is fixedly connected to the inner wall of the locking ring 10. When the locking ring 10 rotates, it drives the locking plate 11 into the limiting groove 9 and engages with the locking groove 7.

[0024] Specifically, multiple sensors 2 are set up to track the motor's operating status in real time and identify potential fault risks in a timely manner. When an abnormality is detected, an alarm can be issued quickly to remind the operator to take measures. When the sensor 2 needs maintenance, since the connecting seat 6 fixes the sensor 2 and the connecting rod 5 is fixedly connected to the connecting seat 6, the locking ring 10 is rotated, which causes the locking plate 11 to rotate. After the locking plate 11 rotates, it is pulled out of the locking groove 7. At this time, the maintenance personnel can hold the sensor 2 and pull it out, so that the sensor 2 drives the connecting seat 6 and the connecting rod 5 to move, so that the connecting rod 5 is pulled out of the fixing tube 4, thus completing the quick disassembly of the sensor 2.

[0025] When it is necessary to fix sensor 2, the maintenance personnel hold sensor 2, causing sensor 2 to move connecting seat 6 and connecting rod 5, so that connecting rod 5 is inserted into fixing tube 4. At this time, the maintenance personnel rotate locking ring 10, causing locking ring 10 to move locking plate 11. The maintenance personnel can then fully insert connecting rod 5 into fixing tube 4. Then the maintenance personnel rotate locking ring 10 again, causing locking ring 10 to move locking plate 11 and lock groove 7, thus completing the quick fixation of sensor 2.

[0026] Furthermore, the outer wall of the connecting rod 5 extends outward to form symmetrical protrusions, and the protrusions formed by the connecting rod 5 correspond to the limiting groove 9, and the locking grooves 7 are respectively located at the protrusions formed by the connecting rod 5;

[0027] Specifically, the protrusion formed by the extension of the outer wall of the connecting rod 5 allows the connecting rod 5 to cooperate with the limiting groove 9 when it is inserted into the fixing tube 4, so that the connecting rod 5 is locked in the limiting groove 9. This prevents the connecting rod 5 from rotating after it is inserted into the fixing tube 4, thus limiting the sensor 2 through the connecting seat 6, preventing the sensor 2 from rotating and increasing the stability when fixing the sensor 2.

[0028] Furthermore, the lower outer wall of the locking ring 10 extends downward to form a teardrop-shaped structure. The teardrop-shaped structure formed by the locking ring 10 drives the main body to rotate under its own weight, making the teardrop-shaped structure formed by it vertically downward.

[0029] Specifically, the locking ring 10 remains at the same angle under the gravity of the teardrop-shaped structure formed by the extension of the main body. When disassembling and fixing the sensor 2, the maintenance personnel only need to rotate the ring once. After the sensor 2 is disassembled or fixed, the ring will reset and rotate under the gravity of the teardrop-shaped structure formed by the extension of the main body, which increases the convenience of disassembling and fixing the sensor 2. The teardrop-shaped structure formed by the extension of the ring also makes it easy for the maintenance personnel to rotate the locking ring 10 through the teardrop-shaped structure. When the maintenance personnel hold the sensor 2, they only need to use their fingers to flick the teardrop-shaped structure to rotate the locking ring 10.

[0030] Furthermore, the protruding ends of the connecting rod 5 extend gradually in an arc shape towards the center from both sides, and the protruding ends of the connecting rod 5 form a semi-circular structure after extension.

[0031] Specifically, the semi-circular structure formed by the gradually arc-shaped extension of the two sides of the protrusion of the connecting rod 5 towards the center makes it easier for the protrusion of the connecting rod 5 to guide the opening of the limiting groove 9 when the connecting rod 5 is inserted into the fixing tube 4, thus facilitating the insertion of the connecting rod 5 into the fixing tube 4.

[0032] Furthermore, the outer wall of the motor protector housing 1 is fixedly connected with multiple fixing plates 12, and each fixing plate 12 is provided with a bolt 13 that passes through it;

[0033] Specifically, the bolts 13 and the fixing plate 12 are used to fix the motor protector housing 1, thereby increasing the stability of the motor protector housing 1.

[0034] Working principle: This embodiment provides a motor protector with fault early warning function. In use, multiple sensors 2 are set to track the motor's operating status in real time and identify potential fault risks in a timely manner. When an abnormality is detected, an alarm can be issued quickly to remind the operator to take measures. When the sensor 2 needs maintenance, since the connecting seat 6 fixes the sensor 2 and the connecting rod 5 is fixedly connected to the connecting seat 6, by rotating the locking ring 10, the locking ring 10 rotates and drives the locking plate 11 to rotate. After the locking plate 11 rotates, it is pulled out of the locking groove 7. At this time, the maintenance personnel can hold the sensor 2 and pull it out, so that the sensor 2 drives the connecting seat 6 and the connecting rod 5 to move, so that the connecting rod 5 is pulled out of the fixing tube 4, thus completing the quick disassembly of the sensor 2.

[0035] When it is necessary to fix sensor 2, the maintenance personnel hold sensor 2, causing sensor 2 to move connecting seat 6 and connecting rod 5, so that connecting rod 5 is inserted into fixing tube 4. At this time, the maintenance personnel rotate locking ring 10, causing locking ring 10 to move locking plate 11. The maintenance personnel can then fully insert connecting rod 5 into fixing tube 4. Then the maintenance personnel rotate locking ring 10 again, causing locking ring 10 to move locking plate 11 and lock groove 7, thus completing the quick fixation of sensor 2.

[0036] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A motor protector with fault warning function, comprising a motor protector housing (1) and a plurality of sensors (2) disposed therein, characterized in that, The inner wall of the motor protector housing (1) is fixedly connected to multiple fixing seats (3), and multiple fixing tubes (4) are fixedly connected to the other side of each fixing seat (3). A connecting rod (5) is inserted into the inside of each fixing tube (4), and a connecting seat (6) is fixedly connected to the other end of each connecting rod (5). The connecting seats (6) are fixedly connected to the sensor (2) respectively. The outer wall of each connecting rod (5) is provided with symmetrically arranged locking grooves (7), and the outer wall of the fixing tube (4) is provided with a fixing mechanism for fixing the connecting rod (5). The fixing mechanism includes an annular groove (8), which is formed on the outer wall of the fixing tube (4). The inner wall of the fixing tube (4) is provided with symmetrically arranged limiting grooves (9). The limiting grooves (9) are connected to the interior of the annular groove (8). A locking ring (10) is rotatably connected to the inner wall of the annular groove (8). A locking plate (11) is fixedly connected to the inner wall of the locking ring (10). When the locking ring (10) rotates, it drives the locking plate (11) into the limiting groove (9) and engages with the locking groove (7).

2. A motor protector with fault early warning function according to claim 1, characterized in that, The outer wall of the connecting rod (5) extends outward to form symmetrical protrusions, and the protrusions formed by the connecting rod (5) correspond to the limiting groove (9). The locking grooves (7) are located at the protrusions formed by the connecting rod (5).

3. A motor protector with fault early warning function according to claim 1, characterized in that, The lower outer wall of the locking ring (10) extends downward to form a teardrop-shaped structure. The teardrop-shaped structure formed by the locking ring (10) drives the body to rotate under its own weight, making the teardrop-shaped structure formed by it vertically downward.

4. A motor protector with fault early warning function according to claim 2, characterized in that, The protruding ends of the connecting rod (5) extend gradually in an arc shape towards the center from both sides, and the protruding ends of the connecting rod (5) form a semi-circular structure after extension.

5. A motor protector with fault early warning function according to claim 1, characterized in that, The outer wall of the motor protector housing (1) is fixedly connected to multiple fixing plates (12), and each fixing plate (12) is provided with a bolt (13) that passes through it.