AC contactor

Abstract

The utility model relates to an alternating current contactor, which comprises a shell, a plurality of wiring ports arranged on the shell, a coil framework arranged in the shell, an enameled wire wound on the coil framework, a long wiring pin and a short wiring pin arranged in the coil framework and insulated from the coil framework. According to the utility model, the long wiring pin and the short wiring pin which are arranged in the coil framework are electrically connected with the wiring port on the shell, so that the whole structure of the alternating current contactor is more compact, the occupied space is reduced, the assembly process is greatly simplified, the production efficiency is improved, and the connection between the long wiring pin and the wiring port and the connection between the short wiring pin and the wiring port are more convenient. Stability and reliability of electrical connection are ensured by welding connection between the long wiring pin and the short wiring pin and welding connection between the enameled wire and the wiring pin, risks of poor contact and looseness are reduced by the connection mode, efficiency and safety of circuit transmission are improved, and insulation design between the coil framework and the long wiring pin and between the coil framework and the short wiring pin is achieved. And the phenomena of electrical short circuit and electric leakage are effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of electrical control equipment technology, and in particular to an AC contactor. Background Technology

[0002] AC contactors, as widely used electrical control components, play a crucial role in power systems. They are primarily used for remote control and circuit protection, controlling the opening and closing of contacts by energizing and de-energizing the control coil, thereby controlling the flow of the load circuit. With the continuous development of power electronics technology, the performance requirements for AC contactors are becoming increasingly stringent. However, in existing technologies, the housing assembly of AC contactors mostly uses screw connections. While screw connections ensure the stability of the housing to a certain extent, they present many inconveniences during installation and disassembly. Screw connections require significant time and effort, and loosening or damage to the screws can lead to instability in the housing assembly, affecting the overall performance of the AC contactor. Furthermore, the insulation performance of the coil frame may be insufficient, posing safety hazards. The connection method between the terminals and the terminals may be unreliable, easily leading to poor contact or loosening. In addition, the lack of clear markings on the terminals also causes inconvenience for users during installation and use. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an AC contactor that is compact in structure, easy to assemble, has stable and reliable electrical connection, and high safety performance.

[0004] To achieve the above objectives, this utility model employs an AC contactor comprising a housing with multiple wiring ports. Inside the housing is a coil frame with enameled wire wound around it. The coil frame contains long and short terminals, which are insulated from each other. The long terminals extend to the wiring ports at both ends of the housing to form an electrical connection. The short terminals are located to one side of the long terminals and extend towards one end of the wiring port to form an electrical connection. One end of the enameled wire is electrically connected to a first terminal on the long terminal, and the other end of the enameled wire is electrically connected to a second terminal on the short terminal.

[0005] The advantages of the above structure are as follows: By integrating the long and short leads into the coil frame and forming an electrical connection with the wiring ports on the housing, the complex external wiring and additional connecting parts of traditional designs are avoided. This not only makes the overall structure of the AC contactor more compact and reduces space occupation, but also greatly simplifies the assembly process and improves production efficiency. The connection between the long and short leads and the wiring ports, as well as the welding connection between the enameled wire and the leads, ensure the stability and reliability of the electrical connection. This connection method reduces the risk of poor contact and loosening, and improves the efficiency and safety of circuit transmission. The insulation design between the coil frame and the long and short leads effectively prevents electrical short circuits and leakage.

[0006] This utility model is further configured such that the housing includes a base and a base. The base has a slot, and the base has a locking block that matches the slot. The base is engaged with the slot on the base via the locking block. This engaging method greatly simplifies the assembly process of the housing. Operators do not need to use additional tools such as screwdrivers; they only need to align the locking block on the base with the slot on the base and press gently to complete the assembly. This not only improves assembly efficiency but also reduces the difficulty of operation.

[0007] This invention is further configured such that the coil frame is made of insulating material. By using an insulating material for the coil frame, current can be effectively prevented from passing through the frame itself, thereby avoiding the risk of electrical short circuits and leakage.

[0008] This invention is further configured such that both the long and short leads are made of metal. Metal materials possess excellent electrical conductivity, ensuring minimal current loss during transmission between the long and short leads.

[0009] This utility model is further equipped with labels for all wiring ports. These labels clearly indicate the function and connection requirements of each port, enabling installers to quickly and accurately complete the circuit connections. This not only saves installation time but also reduces the risk of circuit failures due to incorrect or faulty connections. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model.

[0011] Figure 2 This is an exploded view of the structure of an embodiment of the present invention.

[0012] Figure 3 This is a top view of the coil frame according to an embodiment of the present invention.

[0013] Figure 4This is an exploded assembly diagram of the coil frame, long lead, and short lead according to an embodiment of the present invention. Detailed Implementation

[0014] like Figures 1-4 As shown, an embodiment of this utility model provides an AC contactor, including a housing 1. The housing 1 has three wiring ports 2, each with a unique identifier, such as A1, A2. Inside the housing 1 is a coil frame 3 made of plastic. Enamelled wire 31 is wound around the coil frame 3. The coil frame 3 contains a long lead 32 and a short lead 33, both made of iron and insulated from the coil frame 3 by the plastic material. The long lead 32 extends towards the wiring ports 2 at both ends of the housing 1 to form an electrical connection. The short lead 33 is located on one side of the long lead 32 and extends towards the wiring ports 2. One end of port 2 extends to form an electrical connection. One end of the enameled wire 31 is welded to the first terminal 321 provided on the long terminal 32, and the other end is welded to the second terminal 331 provided on the short terminal 33. This welding connection method ensures the reliability and stability of the electrical connection. Although the welding part is not directly shown in the actual figure, the housing 1 includes two parts: a base 11 and a base 12. The base 11 has four slots 111 for matching with four blocks 121 on the base 12. Through the cooperation of the blocks 121 and the slots 111, the base 12 can be firmly fixed on the base 11.

[0015] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. An AC contactor characterized by: The shell is provided with a plurality of wiring ports, and a coil framework is arranged inside the shell, a lacquered wire is wound on the coil framework, a long connecting pin and a short connecting pin are arranged in the coil framework and are insulated from the coil framework, the long connecting pin extends to the wiring ports at both ends of the shell to form an electrical connection, the short connecting pin is located on one side of the long connecting pin and extends to one end of the wiring port to form an electrical connection, one end of the lacquered wire is electrically connected with a first connecting end arranged on the long connecting pin, and the other end of the lacquered wire is electrically connected with a second connecting end arranged on the short connecting pin.

2. The AC contactor of claim 1, wherein: The shell comprises a base and a bottom, a clamping slot is formed in the base, the bottom is provided with a clamping block matched with the clamping slot, and the bottom is clamped with the base through the clamping block and the clamping slot.

3. An AC contactor according to claim 1 or 2, characterised in that: The coil framework is made of insulating material.

4. The AC contactor of claim 3, wherein: The long connecting pin and the short connecting pin are made of metal material.

5. The AC contactor of claim 3, wherein: The wiring ports are provided with marks.

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