Alternating current contactor

Abstract

The utility model discloses an AC contactor comprising a base plate, the base plate is movably connected with an iron core assembly, and the iron core assembly is movably connected with a switch assembly. The switch assembly comprises a mounting frame, and a travel switch is arranged on the mounting frame; the iron core assembly comprises a coil framework, an arranged iron core is fixed in the coil framework, and the installation frame is movably installed on the coil framework. In conclusion, after the bottom plate is pulled out from the interior of the contactor, the switch assembly and the iron core assembly can be synchronously taken out, so that replacement of the iron core assembly and the switch assembly is facilitated. On the basis, when the alternating current contactor is connected to a power supply, the suction coil works, the armature moves downwards to trigger the normally-closed contact of the travel switch, the normally-closed contact is disconnected, the coil is kept working at the moment so as to save electric energy, and particularly, disassembly and replacement of the travel switch are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an AC contactor. Background Art

[0002] At present, the application of AC contactor basically adopts single coil operation. When the coil is attracted, a large current passes through it, resulting in a waste of electric energy. The new double-coil AC contactor has two sets of coils, which are divided into a pickup coil and a holding coil. When the AC contactor is working, the armature moves and contacts the travel switch, disconnecting the pickup coil and switching to the holding coil. At this time, the pickup coil provides a small current to maintain the attracted state, which can save electric energy. This double-coil AC contactor needs to add a travel switch to control the switching of the pickup and holding coils. The fixing method that has been applied is to fix the travel switch on the bottom plate, but the above method is not conducive to the disassembly and fixing of the travel switch. Utility Model Content

[0003] The purpose of the utility model is to provide an AC contactor to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an AC contactor, comprising a base plate, the base plate is movably connected to a provided iron core assembly, and the iron core assembly is movably connected to a provided switch assembly; the switch assembly comprises a mounting frame, and a travel switch is provided on the mounting frame; the iron core assembly comprises a coil frame, and the provided iron core is fixed in the coil frame, and the mounting frame is movably mounted on the coil frame.

[0005] As a preferred technical solution of the utility model: the switch assembly also includes a first fastener, and the first fastener passes through the mounting frame and the travel switch and is connected to a provided connecting piece.

[0006] As a preferred technical solution of the utility model: a first plug-in portion is provided at one end of the iron core, and a second plug-in portion is provided at the other end of the iron core; wherein the first plug-in portion is connected to a fixing portion provided on the bottom plate, and the second plug-in portion is fixed to the bottom plate by a pressure plate provided.

[0007] As a preferred technical solution of the utility model: a mounting seat is also provided on the bottom plate, and a second fastener is provided to pass through the mounting seat and then connected to the pressing plate to fix the pressing plate on the bottom plate.

[0008] As a preferred technical solution of the present utility model: the first plug-in portion and the second plug-in portion are both made of insulating material and are sleeved on the iron core.

[0009] By adopting the above technical solution, the beneficial effects of the utility model are: 1. After the bottom plate is pulled out from the inside of the contactor, the switch assembly and the iron core assembly can be taken out synchronously, thereby facilitating the replacement of the iron core assembly and the switch assembly;

[0010] 2. When the AC contactor is connected to the power supply, the suction coil works, and the armature moves downward to trigger the normally closed contacts of the travel switch. The normally closed contacts are disconnected. At this time, the coil is kept working to save energy. In particular, the travel switch can be pulled out from the inside of the contactor through the bottom plate, so it is easy to disassemble and replace the travel switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an exploded schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is an exploded schematic diagram of the core assembly and the switch assembly of the utility model;

[0013] Figure 3 This is a schematic diagram of the exploded structure of the switch assembly of the utility model.

[0014] In the figure: 1, bottom plate; 2, iron core assembly; 3, switch assembly; 30, travel switch; 31, mounting bracket; 32, first fastener; 33, connecting piece; 4, pressure plate; 5, fixing part; 6, second fastener; 7, iron core; 8, first plug-in part; 9, coil frame; 10, second plug-in part; 11, mounting base. DETAILED DESCRIPTION

[0015] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be construed as limitations on the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0016] See also Figure 1-3The utility model provides an embodiment: an AC contactor, including a base plate 1, the base plate 1 is movably connected to a core assembly 2, and the core assembly 2 is movably connected to a switch assembly 3; the switch assembly 3 includes a mounting frame 31, and a travel switch 30 is provided on the mounting frame 31; the core assembly 2 includes a coil skeleton 9, and the core 7 is fixed in the coil skeleton 9, and the mounting frame 31 is movably installed on the coil skeleton 9.

[0017] In summary, after the bottom plate 1 is pulled out from the inside of the contactor, the switch assembly 3 and the core assembly 2 can be taken out simultaneously, thereby facilitating the replacement of the core assembly 2 and the switch assembly 3;

[0018] At the same time, when the AC contactor is connected to the power supply, the suction coil works, and the armature moves downward to trigger the normally closed contacts of the travel switch, and the normally closed contacts are disconnected. At this time, the coil is kept working to save energy. In particular, the travel switch 30 can be pulled out from the inside of the contactor through the base plate 1, so it is convenient to disassemble and replace the travel switch 30.

[0019] Furthermore, since the switch assembly 3 also includes a first fastener 32, and the first fastener 32 passes through the mounting frame 31 and the travel switch 30 and is connected to the provided connecting piece 33, the travel switch 30 can be stably and reliably fixed on the mounting frame 31. At the same time, disassembling the connecting piece 33 and the first fastener 32 facilitates the disassembly of the switch assembly 3, thereby making the replacement of the travel switch 30 more convenient and quick.

[0020] On the basis of the above scheme, since a first plug-in portion 8 is provided at one end of the iron core 7, and a second plug-in portion 10 is provided at the other end of the iron core 7; wherein the first plug-in portion 8 is connected to the fixing portion 5 provided on the base plate 1, and the second plug-in portion 10 is fixed to the base plate 1 through a pressure plate 4 provided. Through the above method, not only the fixing method of the iron core assembly 2 can be simplified, but also the disassembly of the iron core assembly 2 and the base plate 1 is facilitated, especially, the processing difficulty of the base plate 1 can be reduced.

[0021] Furthermore, since a mounting seat 11 is also provided on the base plate 1, and a second fastener 6 is provided to pass through the mounting seat 11 and connect with the pressure plate 4 to fix the pressure plate 4 on the base plate 1, the pressure plate 4 can be easily assembled and disassembled while being reliably fixed on the mounting seat 11; wherein the first fastener 32 and the second fastener 6 are preferably bolts, and the connecting member 33 is preferably a nut.

[0022] Furthermore, since the first plug-in portion 8 and the second plug-in portion 10 are both made of insulating material and are sleeved on the iron core 7, the insulating material can be used to improve the insulation effect and reduce the wear of the iron core assembly 2 on the base plate 1 and the wear of the iron core assembly 2 itself during the disassembly and assembly process.

[0023] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An AC contactor, characterized in that: It comprises a bottom plate (1), the bottom plate (1) being movably connected to a provided iron core assembly (2), and the iron core assembly (2) being movably connected to a provided switch assembly (3); The switch assembly (3) comprises a mounting frame (31), and a travel switch (30) is provided on the mounting frame (31); The iron core assembly (2) comprises a coil frame (9), and the iron core (7) is fixed inside the coil frame (9), and the mounting frame (31) is movably mounted on the coil frame (9).

2. An AC contactor according to claim 1, characterized in that: The switch assembly (3) further comprises a first fastener (32), and the first fastener (32) passes through the mounting frame (31) and the travel switch (30) and is connected to a connecting member (33).

3. An AC contactor according to claim 1 or 2, characterized in that: A first plug-in portion (8) is provided at one end of the iron core (7), and a second plug-in portion (10) is provided at the other end of the iron core (7); wherein the first plug-in portion (8) is connected to a fixing portion (5) provided on the bottom plate (1), and the second plug-in portion (10) is fixed to the bottom plate (1) via a pressure plate (4).

4. An AC contactor according to claim 3, characterized in that: A mounting seat (11) is also provided on the base plate (1), and a second fastener (6) is provided which passes through the mounting seat (11) and is connected to the pressing plate (4), so as to fix the pressing plate (4) on the base plate (1).

5. An AC contactor according to claim 4, characterized in that: The first plug-in portion (8) and the second plug-in portion (10) are both made of insulating material and are sleeved on the iron core (7).

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