Fixing structure of motor protector

Abstract

The utility model is suitable for the technical field of motor protectors, and provides a fixing structure of a motor protector, which comprises a plurality of threading holes and binding posts arranged on the protector, an adjusting knob arranged on the protector, a mounting seat detachably connected with the protector, and a protective cover arranged on the protector and matched with the mounting seat. A concave part is arranged on the mounting seat, and the protector is arranged in the concave part; a mounting part is arranged on the concave part, a first wire fixing plate and a second wire fixing plate are respectively arranged at the top and the bottom of the mounting seat, and a plurality of first wire fixing grooves and a plurality of second wire fixing grooves are respectively formed in the first wire fixing plate and the second wire fixing plate; a first baffle plate matched with the first wire fixing plate is arranged at the top of the protective cover; a fourth wire fixing groove is formed in the first baffle plate; a plurality of second baffles are arranged at the bottom of the protective cover, a notch part is arranged between every two adjacent second baffles, third wire fixing plates are arranged on the second baffles, and third wire fixing grooves are formed in the third wire fixing plates. Therefore, the device can be quickly disassembled and assembled, and the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] This utility model applies to the field of motor protector technology and provides a fixing structure for a motor protector. Background Technology

[0002] A motor protector is an electrical device used to protect motors from faults such as overload, short circuit, and abnormal voltage. Its main function is to monitor the motor's operating status and automatically disconnect the power supply in case of a fault or abnormality, preventing damage to the motor and its auxiliary equipment. Motor protectors are typically equipped with multiple protection functions, such as overload protection, short circuit protection, and overvoltage and undervoltage protection. These functions ensure the safe operation of the motor, extend the service life of equipment, and reduce losses caused by faults.

[0003] Motor protectors are often installed inside distribution boxes as part of the motor's electrical control system, primarily for real-time monitoring and protection of motor operation. Distribution boxes are typically located in industrial production sites, construction sites, or other locations requiring motor drive, often operating in high-temperature, high-humidity, and dusty industrial environments. Because motor protectors require long-term stable operation and are usually fixed to brackets inside the distribution box during installation, their installation method must be stable, convenient, and conform to industrial standards.

[0004] However, existing motor protector mounting structures often suffer from problems such as inconvenient installation, difficult disassembly, and insufficient protective performance in practical applications. To ensure that motor protectors can be securely installed in the distribution box while also being easy to disassemble and replace when needed, an auxiliary mounting structure is urgently needed. Utility Model Content

[0005] To address the aforementioned deficiencies, the present invention aims to provide a fixing structure for a motor protector, thereby solving the problems raised in the background art. The device includes a protector with several wire holes and several terminals for wiring, and an adjustment knob. It also includes a mounting base detachably connected to the protector, and a protective cover that mates with the mounting base is detachably connected to the protector.

[0006] The mounting base has a recess on the side near the protector, and the protector is embedded in the recess; the recess has a hollowed-out mounting part, and the top and bottom of the mounting base are respectively fixedly connected to a first wire fixing plate and a second wire fixing plate, and the first wire fixing plate and the second wire fixing plate are respectively provided with a plurality of first wire fixing grooves and a plurality of second wire fixing grooves.

[0007] The top of the protective cover is provided with a first baffle that cooperates with the first wire fixing plate. The first baffle is provided with a fourth wire fixing groove that corresponds one-to-one with a plurality of first wire fixing grooves. The bottom of the protective cover is provided with a plurality of second baffles that cooperate with the terminal blocks. There is a notch between adjacent second baffles. A third wire fixing plate is provided at the end of the second baffle near the second wire fixing plate. The third wire fixing plate is provided with a third wire fixing groove that corresponds one-to-one with the second wire fixing grooves.

[0008] Furthermore, the protective cover is a square shell with one open side, and the size of the protective cover matches the size of the end of the protector furthest from the mounting base.

[0009] Furthermore, the protective cover has an adjustment hole at the end away from the opening, the position of which matches the adjustment knob.

[0010] Furthermore, a number of support bars are installed at the top inside the protective cover, and the height of the support bars matches the distance between the protector and the top surface inside the protective cover.

[0011] Furthermore, the mounting base has two symmetrical first snap-fit ​​parts on both sides, the protective cover has two symmetrical second snap-fit ​​parts on both sides, and the protector has a first snap-fit ​​groove and a second snap-fit ​​groove on both sides corresponding to the first snap-fit ​​parts and the second snap-fit ​​parts, respectively.

[0012] Furthermore, the mounting base is provided with a number of mesh holes.

[0013] Furthermore, the protective cover is made of transparent material.

[0014] Furthermore, a soft pad that mates with the first wire fixing groove is installed on the fourth wire fixing groove.

[0015] This utility model achieves rapid assembly and disassembly through a modular snap-fit ​​structure, significantly improving maintenance efficiency. Secondly, the coordinated design of several cable trays and baffles not only provides enclosed cable fixation but also prevents foreign object intrusion, significantly enhancing electrical safety. The design of the mounting base's mesh holes balances structural strength with material economy. The precise fit between components not only optimizes space utilization but also effectively reduces equipment failure rates due to its anti-accidental contact features and environmental adaptability. It is particularly suitable for motor protection systems in complex industrial environments, possessing outstanding practical value and market competitiveness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the device structure;

[0017] Figure 2 This is a schematic diagram of the protector structure;

[0018] Figure 3 This is a schematic diagram of the mounting base structure;

[0019] Figure 4 This is a schematic diagram of the protective cover structure;

[0020] Figure 5 for Figure 4 Enlarged view of the A-section structure;

[0021] In the diagram: 01-Three-phase wire; 02-Connecting wire; 1-Mounting base; 101-First snap-fit ​​part; 11-Mounting part; 12-Mesh; 13-First wire fixing plate; 131-First wire fixing groove; 14-Second wire fixing plate; 141-Second wire fixing groove; 2-Protector; 21-First snap-fit ​​groove; 22-Adjusting knob; 23-Second snap-fit ​​groove; 24-Terminal; 25-Wire through hole; 3-Protective cover; 301-Second snap-fit ​​part; 302-Adjusting hole; 31-Support bar; 32-First baffle; 321-Fourth wire fixing groove; 322-Soft pad; 33-Second baffle; 34-Third wire fixing plate; 341-Third wire fixing groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0026] See Figure 1-5 The purpose of this utility model is to provide a fixing structure for a motor protector, including a mounting base 1 and a protector 2 mounted on the mounting base 1, with a protective cover 3 detachably connected to the protector 2.

[0027] Protector 2 can be installed in the electrical control cabinet via mounting base 1. Mounting base 1 is installed on the inner side of the electrical control cabinet, and protector 2 is detachably connected to mounting base 1. The front of protector 2 faces the cabinet door. Protector 2 has several wire holes 25 and several terminals 24 for wiring. The wire holes 25 can be used to pass through the three-phase wires 01 of the motor; the terminals 24 are used to connect to the connection wires 02 of external electrical equipment. Through the circuit connection, protector 2 completes the functions of detection, monitoring, and real-time communication. Protector 2 contains a control chip and corresponding logic circuits, which can monitor parameters such as the operating current and temperature of the motor. The principle of protector 2 is the same as that of common electronic motor protectors with microprocessor chip thick-film circuits on the market. Its motor protection function is existing technology and will not be described in detail here.

[0028] The protector 2 has a current setting dial on its front side, which includes a display screen, adjustment buttons, indicator LEDs, and two adjustment knobs 22 for adjusting the current and delay time. The adjustment knobs 22 can be used to adjust the magnitude of the protective current and the delay time to adapt to the operating conditions of different motor specifications.

[0029] The front of the mounting base 1 has a recess that matches the size of the back of the protector 2 (i.e., the side away from the adjustment knob 22 on the protector 2), and the back of the protector 2 can be embedded in the recess of the mounting base 1. The recess of the mounting base 1 has a hollowed-out mounting part 11, which can be used to fix the mounting base 1 to the inner side of the electrical control cabinet through the cooperation of the mounting part 11 and bolts. The top and bottom of the mounting base 1 are respectively fixedly connected to a first wire fixing plate 13 and a second wire fixing plate 14. The first wire fixing plate 13 and the second wire fixing plate 14 are respectively provided with a plurality of first wire fixing grooves 131 and a plurality of second wire fixing grooves 141, and the first wire fixing grooves 131 and the second wire fixing grooves 141 are respectively matched with the diameters of the three-phase wire 01 and the connecting wire 02.

[0030] The protective cover 3 is a square shell with one open side. The size of the protective cover 3 matches the size of the front of the protector 2. The end of the protective cover 3 away from the opening is provided with an adjustment hole 302 that matches the position of the adjustment knob 22. The adjustment hole 302 can expose the straight hole on the adjustment knob 22. Thus, the adjustment knob 22 can be adjusted even when the protective cover 3 is installed on the protector 1.

[0031] The protective cover 3 has a first baffle 32 at the upper edge of the opening that cooperates with the first wire fixing plate 13. The first baffle 32 has a fourth wire fixing groove 321 that corresponds to and matches one-to-one with a plurality of first wire fixing grooves 131. The fourth wire fixing groove 321 and the first wire fixing grooves 131 can enclose and surround the three-phase wire 01 passing through the wire hole 25.

[0032] The bottom of the protective cover 3 is equipped with several second baffles 33 that cooperate with the terminal 24. When the protective cover 3 is installed, the second baffles 33 can block the terminal 24, thus protecting the terminal 24. There is a notch between adjacent second baffles 33, which can avoid the three-phase wire 01 passing through the wire hole 25, and at the same time, can avoid interfering with the second baffles 33 blocking the terminal 24. A third wire fixing plate 34 is provided at the end of the second baffle 33 near the second wire fixing plate 14. The third wire fixing plate 34 has a third wire fixing groove 341 that corresponds one-to-one with the second wire fixing groove. The third wire fixing groove 341 and the second wire fixing groove can enclose and surround the connecting wire 02. Thus, the combination of mounting base 1 and protective cover can protect the three-phase wire 01 passing through the wire hole 25 and the connector of the connecting wire 02 connected to the terminal block 24, preventing dust, debris and flying insects from entering, reducing the risk of accidental activation of the protection mechanism due to external factors, and improving the stability and safety of the equipment. The second baffle 33 can effectively shield and protect the terminal block 24, preventing short circuits or damage caused by accidental activation or external factors, thus improving the safety of the equipment.

[0033] Preferably, a plurality of support bars 31 are installed on the top inside the protective cover 3. The height of the support bars 31 matches the distance between the protector 2 and the inner top surface of the protective cover 3. The support bars 31 can make the protective cover 3 more secure and less likely to fall off after installation.

[0034] Preferably, the mounting base 1 has two symmetrical first locking portions 101 on both sides, the protective cover 3 has two symmetrical second locking portions 301 on both sides, and the protector 2 has a first locking groove 21 and a second locking groove 23 on both sides corresponding to the first locking portions 101 and the second locking portions 301, respectively. When the protector 2 is installed, it is aligned with the recess on the mounting base 1 and pushed in. When pushed to the end, the first locking portion 101 on the mounting base 1 engages in the first locking groove 21, completing the installation of the protector 2. The protector 2 can also be disassembled by operating the first locking portion 101, thus achieving a detachable connection. When the protective cover 3 is installed, it is aligned with the protector 2 and pushed in. When pushed to the end, the second locking portion 301 elastically deforms and engages in the second locking groove 23, completing the engagement. During disassembly, the protective cover 3 can be removed by hand, thus achieving quick disassembly of the protector 2 and the protective cover, facilitating equipment maintenance and repair.

[0035] Preferably, the mounting base 1 is provided with a plurality of mesh holes 12, which can reduce the weight of the mounting base 1 and save material costs.

[0036] Preferably, the protective cover 3 is made of transparent material. The transparent material of the protective cover 3 allows the staff to directly observe the working status of the protector 2 and the information on the display screen without removing the protective cover, which facilitates the monitoring and maintenance of the equipment and also improves the overall aesthetics of the equipment.

[0037] Preferably, a soft pad 322 is installed on the fourth wire fixing groove 321. The soft pad 322 is configured in conjunction with the first wire fixing groove 131 to better enclose the three-phase wire 01, while also preventing the original hard contact from damaging the three-phase wire 01.

[0038] Therefore, the installation and use method of this device is as follows: First, fix the mounting base 1 to the inner side of the electrical control cabinet with bolts. Push the back of the protector 2 into the recess of the mounting base 1 until the first locking part 101 locks into the first locking groove 21 to complete the installation. During installation, the front of the protector 2 faces the cabinet door. The three-phase wire 01 passes through the first fixing groove 131 on the first fixing plate 13 and enters the wire hole 25. The external connecting wire 02 corresponds to the second fixing groove 141 and is connected to the terminal 24. Then, push the protective cover 3 into the protector 2. The second locking part 301 is fixed by the elastic cooperation between itself and the locking groove. At this time, the third and fourth fixing grooves can cooperate with the second and first fixing grooves respectively to clamp and fix the three-phase wire 01 and the connecting wire 02. The installation is complete. When maintenance is required, the protective cover 3 or the protector 2 can be quickly removed by moving the locking part.

[0039] Therefore, this device adopts a modular snap-fit ​​structure to achieve rapid assembly and disassembly, significantly improving maintenance efficiency. Secondly, through the coordinated design of several cable trays and baffles, it achieves both enclosed fixing of the wiring and prevention of foreign object intrusion, significantly improving electrical safety. The design of the mounting base 1 and the mesh hole 12 balances structural strength and material economy. The precise fit between the components not only optimizes space utilization, but its anti-accidental contact characteristics and environmental adaptability also effectively reduce equipment failure rates, making it particularly suitable for motor protection systems in complex industrial environments, with outstanding practical value and market competitiveness.

[0040] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A fixing structure for a motor protector, comprising a protector (2), wherein the protector (2) is provided with a plurality of wire holes (25) and a plurality of terminals (24) for wiring, and the protector (2) is provided with an adjustment knob (22), characterized in that, It also includes a mounting base (1) detachably connected to the protector (2), and the protector (2) is detachably connected to a protective cover (3) that cooperates with the mounting base (1); The mounting base (1) has a recess on the side near the protector (2), and the protector (2) is embedded in the recess; the recess has a hollow mounting part (11), and the top and bottom of the mounting base (1) are respectively fixedly connected to a first wire fixing plate (13) and a second wire fixing plate (14), and the first wire fixing plate (13) and the second wire fixing plate (14) are respectively provided with a plurality of first wire fixing grooves (131) and a plurality of second wire fixing grooves (141); The top of the protective cover (3) is provided with a first baffle (32) that cooperates with the first wire fixing plate (13). The first baffle (32) is provided with a fourth wire fixing groove (321) that corresponds one-to-one with a plurality of first wire fixing grooves (131). The bottom of the protective cover (3) is provided with a plurality of second baffles (33) that cooperate with the terminal block (24). There is a notch between adjacent second baffles (33). A third wire fixing plate (34) is provided at one end of the second baffle (33) near the second wire fixing plate (14). The third wire fixing plate (34) is provided with a third wire fixing groove (341) that corresponds one-to-one with the second wire fixing groove.

2. The fixing structure of the motor protector according to claim 1, characterized in that, The protective cover (3) is a square shell with one open side, and the size of the protective cover (3) matches the size of the end of the protector (2) away from the mounting base (1).

3. The fixing structure of the motor protector according to claim 1, characterized in that, The protective cover (3) has an adjustment hole (302) at the end away from the opening, which is positioned to match the adjustment knob (22).

4. The fixing structure of the motor protector according to claim 1, characterized in that, Several support bars (31) are installed on the top of the inner side of the protective cover (3), and the height of the support bars (31) matches the distance between the protector (2) and the top surface of the inner side of the protective cover (3).

5. The fixing structure of the motor protector according to claim 1, characterized in that, The mounting base (1) has two symmetrical first snap-fit ​​parts (101) on both sides, the protective cover (3) has two symmetrical second snap-fit ​​parts (301) on both sides, and the protector (2) has a first snap-fit ​​groove (21) and a second snap-fit ​​groove (23) on both sides that correspond to the first snap-fit ​​parts (101) and the second snap-fit ​​parts (301) respectively.

6. The fixing structure of the motor protector according to claim 1, characterized in that, The mounting base (1) is provided with a plurality of mesh holes (12).

7. The fixing structure of the motor protector according to claim 1, characterized in that, The protective cover (3) is made of transparent material.

8. The fixing structure of the motor protector according to claim 1, characterized in that, The fourth wire fixing groove (321) is equipped with a soft pad (322) that cooperates with the first wire fixing groove (131).

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