Contactor irregular connection nut

Abstract

This utility model discloses a contactor irregular-shaped connecting nut, including a fixing nut. This contactor irregular-shaped connecting nut features an insulating coating made of an insulating varnish. This insulating varnish can cover the surface of the steel sheet or coil, providing moisture resistance, insulation, and chemical corrosion resistance. During use, it provides insulation to the outside of the irregular-shaped connecting nut, preventing electric shock hazards from leakage and improving safety. It also further enhances the corrosion resistance of the irregular-shaped connecting nut, thereby extending its service life. Furthermore, the included fixing tube and fixing cap facilitate connection between the contactor and the distribution cabinet. The contactor wire is passed through the inner mounting hole of the fixing nut, and after connection, the wire is secured inside the distribution cabinet by a locking washer at the rear end of the fixing nut. The inner wall of the fixing cap has a hole of the same diameter as the inner mounting hole, ensuring uninterrupted wire connection and fixation.

Description

Technical Field

[0001] This utility model relates to the technical field of contactors, specifically to irregularly shaped connecting nuts for contactors. Background Technology

[0002] A contactor is a widely used switching electrical appliance that uses electromagnetic, pneumatic, or hydraulic principles to control the opening and closing of the main circuit. Contactors have advantages such as strong current interruption capability, rapid action, safe operation, frequent operation, and remote control. However, they cannot interrupt short-circuit currents, so contactors are usually used in conjunction with fuses. The main control object of a contactor is an electric motor, but it can also control other electrical loads, such as welding machines and electric furnaces. Contactors can be classified in many ways. They can be classified according to the power source of the driving contact system into electromagnetic contactors, pneumatic contactors, and hydraulic contactors; or according to the nature of the arc-extinguishing medium into air contactors, oil-immersed contactors, and vacuum contactors. Some components of a contactor, such as the bracket and pin, or when connected to a distribution cabinet, may require the use of special-shaped nuts for fixing and connection. Therefore, special-shaped connecting nuts for contactors are urgently needed.

[0003] Currently, the contactor uses irregularly shaped connecting nuts, which have poor insulation and can lead to leakage problems. Furthermore, during installation, the irregularly shaped connecting nuts are not very secure, which can easily cause the connected wires to come loose. Utility Model Content

[0004] The purpose of this utility model is to provide a contactor irregular-shaped connecting nut to solve the problems mentioned in the background art, such as the poor insulation of the currently used contactor irregular-shaped connecting nuts, which leads to leakage, and the poor fixation of the irregular-shaped connecting nuts during installation, which easily causes the connected wires to fall off.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a contactor irregular-shaped connecting nut, including a fixing nut, the surface of which is coated with an insulating coating, and a locking washer is welded to the bottom end of the fixing nut, an inner mounting hole is opened on the inner wall of the fixing nut, and a fixing tube is welded to the top end of the fixing nut, and a fixing cap is installed at the top end of the fixing tube.

[0006] Preferably, the fixing nut is made of stainless steel.

[0007] Preferably, the coating material of the insulating coating is a covering insulating varnish.

[0008] Preferably, the inner wall of the inner mounting hole is threaded.

[0009] Preferably, the fixing cap is threadedly connected to the fixing nut via a fixing tube, and both the outer wall of the fixing tube and the inner wall of the fixing cap are threaded.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The contactor's irregular-shaped connecting nut is coated with an insulating varnish. This insulating varnish can cover the surface of the steel sheet or coil, providing moisture resistance, insulation, and chemical corrosion resistance. During use, it provides insulation to the outside of the irregular-shaped connecting nut, preventing electric shock hazards from leakage and improving safety. At the same time, it further enhances the corrosion resistance of the irregular-shaped connecting nut, thereby increasing its service life.

[0012] 2. This contactor's irregularly shaped connecting nut, with its fixed tube and fixed cap, facilitates the connection between the contactor and the distribution cabinet. The contactor's wire is passed through the inner mounting hole of the fixed nut, and after the wire is connected to the distribution cabinet, the locking washer at the rear end of the fixed nut secures it inside the distribution cabinet. The front end of the fixed nut protrudes through a pre-drilled hole in the distribution cabinet. The fixed cap is then fixedly connected to the fixed tube at the front end of the fixed nut. The fixed cap secures the fixed nut to the distribution cabinet, and its inner wall has a hole of the same diameter as the inner mounting hole, ensuring uninterrupted wire connection. Attached Figure Description

[0013] Figure 1 This is a front view of the present utility model;

[0014] Figure 2 This is a top view of the parts of this utility model;

[0015] Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle.

[0016] In the diagram: 1. Fixing nut; 2. Insulating coating; 3. Engaging washer; 4. Internal mounting hole; 5. Fixing tube; 6. Fixing cap. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3This utility model provides a technical solution: a contactor irregular-shaped connecting nut, including a fixing nut 1, the fixing nut 1 being made of stainless steel, and the surface of the fixing nut 1 being coated with an insulating coating 2, the coating material of the insulating coating 2 being a covering insulating varnish. By setting the coating material of the insulating coating 2 to cover the surface of the steel sheet or coil, the covering insulating varnish can cover the surface of the steel sheet or coil, and has the ability to resist moisture, insulation and chemical corrosion. During use, it can provide insulation to the outside of the irregular-shaped connecting nut, avoid leakage and electric shock hazards, improve the safety of use, and further improve the corrosion resistance of the irregular-shaped connecting nut, thereby increasing its service life.

[0019] A locking washer 3 is welded to the bottom of the fixing nut 1. An inner mounting hole 4 is provided on the inner wall of the fixing nut 1. The inner wall of the inner mounting hole 4 is threaded. A fixing tube 5 is welded to the top of the fixing nut 1. A fixing cap 6 is installed on the top of the fixing tube 5. The fixing cap 6 is threaded to the fixing nut 1 through the fixing tube 5. Both the outer wall of the fixing tube 5 and the inner wall of the fixing cap 6 are threaded. The fixing tube 5 and the fixing cap 6 facilitate the connection of the contactor to the distribution cabinet. The contactor wire is passed through the inner mounting hole 4 of the fixing nut 1 and connected to the distribution cabinet. The locking washer 3 at the rear end of the fixing nut 1 is locked inside the distribution cabinet. The front end of the fixing nut 1 is exposed through a pre-drilled hole in the distribution cabinet. The fixing cap 6 is fixedly connected to the fixing tube 5 at the front end of the fixing nut 1. The fixing cap 6 can fix the fixing nut 1 to the distribution cabinet. The inner wall of the fixing cap 6 has a hole with the same diameter as the inner mounting hole 4, which will not affect the connection and fixation of the wire.

[0020] Working principle: When connecting the contactor to the distribution cabinet, firstly, the contactor wire is passed through the inner mounting hole 4 of the fixing nut 1 and connected to the distribution cabinet. Then, the locking washer 3 at the rear end of the fixing nut 1 is used to lock it inside the distribution cabinet. The front end of the fixing nut 1 is exposed through a pre-drilled hole in the distribution cabinet. The fixing cap 6 is then fixedly connected to the fixing tube 5 at the front end of the fixing nut 1. The fixing cap 6 can fix the fixing nut 1 to the distribution cabinet. The inner wall of the fixing cap 6 has a hole with the same diameter as the inner mounting hole 4, which will not affect the connection and fixation of the wire. In addition, the coating material is an insulating coating 2 covered with insulating varnish. The insulating varnish can cover the surface of the steel sheet or coil and has the ability to resist moisture, insulation and chemical corrosion. During use, it can provide insulation to the outside of the irregularly shaped connecting nut, avoid leakage and electric shock hazard, improve safety, and further improve the corrosion resistance of the irregularly shaped connecting nut, thereby increasing its service life.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A contactor irregular-shaped connecting nut, characterized in that, The device includes a fixing nut (1), the surface of which is coated with an insulating coating (2), and a locking washer (3) is welded to the bottom end of the fixing nut (1). An inner mounting hole (4) is opened on the inner wall of the fixing nut (1), and a fixing tube (5) is welded to the top end of the fixing nut (1). A fixing cap (6) is installed on the top end of the fixing tube (5).

2. The contactor irregular-shaped connecting nut according to claim 1, characterized in that: The fixing nut (1) is made of stainless steel.

3. The contactor irregular-shaped connecting nut according to claim 1, characterized in that: The coating material of the insulating coating (2) is a covering insulating varnish.

4. The contactor irregular-shaped connecting nut according to claim 1, characterized in that: The inner wall of the internal mounting hole (4) is threaded.

5. The contactor irregular-shaped connecting nut according to claim 1, characterized in that: The fixing cap (6) is threadedly connected to the fixing nut (1) through the fixing tube (5), and both the outer wall of the fixing tube (5) and the inner wall of the fixing cap (6) are threaded.

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