CN219873332U - Contact plate suitable for AC contactor - Google Patents

Abstract

The utility model relates to the technical field of electronic elements, in particular to a contact plate suitable for an alternating current contactor, which comprises: a first contact plate including a connection portion; the second contact plate is arranged on the right side of the first contact plate, the left side of the second contact plate is provided with a plug-in part, and the second contact plate can be detached through the matching and separation of the plug-in part and the connecting part; and the contact points are arranged on the first contact plate and the second contact plate and are used for conducting connection with the conductive bars. In order to overcome the defects and the shortcomings of the prior art, the utility model provides the contact plate of the contactor, which has reasonable structural arrangement and convenient assembly and processing, the first contact plate and the second contact plate can be disassembled according to the size of the conductive bars, the upper side surface and the lower side surface of the first contact plate and the lower side surface of the second contact plate are externally used for installing the conductive bars, and the surface parts of the first contact plate and the second contact plate are not raised, so that the conductive connection between the conductive bars and the connecting parts can be ensured.

Description

Contact plate suitable for AC contactor

Technical Field

The utility model relates to the technical field of electronic elements, in particular to a contact plate suitable for an alternating current contactor.

Background

An ac contactor is one type of contactor, and its typical structure is divided into a double break direct-acting type (LC 1-D/F) and a single break rotary type (LC 1-B). The AC contactor mainly comprises four parts, namely (1) an electromagnetic system, a power supply and a power supply, wherein the electromagnetic system comprises an attraction coil, a movable iron core and a static iron core; (2) The contact system comprises three groups of main contacts and one to two groups of normally open auxiliary contacts and normally closed auxiliary contacts, and the main contacts and the movable iron core are connected together and are linked with each other; (3) The arc extinguishing device is arranged on an alternating current contactor with larger capacity, so that an arc is rapidly cut off, and the main contact is prevented from being burnt; (4) Insulating shell and accessories, various springs, transmission mechanisms, short-circuit rings, binding posts, etc.

When the coil is electrified, the static iron core generates electromagnetic attraction to attract the movable iron core, and the movable iron core drives the three movable contact pieces to run simultaneously due to the linkage of the contact system and the movable iron core, so that the contact is closed, and the power supply is connected. When the coil is powered off, the suction force disappears, and the movable iron core linkage part is separated by the reaction force of the spring, so that the main contact is disconnected, and the power supply is cut off.

In actual processing, due to the elasticity of the conductive metal plate, after bending processing, two opposite surfaces of the bent conductive metal plate are difficult to be mutually attached, a certain gap is always formed between the two surfaces due to the elasticity of the conductive metal plate, and the existence of the gaps greatly improves the contact resistance between the two opposite surfaces of the conductive metal plate, so that the temperature of the contact plate is increased, and the energy consumption of the contact plate is high. In view of this, we propose a contact plate suitable for use in an ac contactor.

Disclosure of Invention

In order to overcome the defects, the utility model provides a contact plate suitable for an alternating current contactor.

The technical scheme of the utility model is as follows:

a contact plate for use in an ac contactor, comprising: a first contact plate including a connection portion; the second contact plate is arranged on the right side of the first contact plate, the left side of the second contact plate is provided with a plug-in part, and the second contact plate can be detached through the matching and separation of the plug-in part and the connecting part; and the contact points are arranged on the first contact plate and the second contact plate and are used for conducting connection with the conductive bars.

Preferably, the first contact plate comprises a first plate body, two bending areas are arranged on the rear side of the first plate body, the bending areas are U-shaped, and the U-shaped concave portions are used for placing the conductive bars.

Preferably, the right side of the first plate body is provided with a plurality of cylindrical grooves, and connecting pieces are connected in the cylindrical grooves in a threaded manner.

Preferably, the second contact plate comprises a second plate body, a connecting plate is arranged at the bottom of the second plate body, connecting holes are formed in the first plate body, the second contact plate and the connecting plate, and the first plate body and the second plate body can be fixed with the connecting plate by penetrating out the connecting holes and the connecting plate through the screw.

Preferably, the plug-in part comprises a plug-in block, the connecting part comprises a slot, the slot is arranged on the right side of the first plate body, the plug-in block is plugged with the slot and used for connecting the first plate body and the second plate body, and the connecting piece can penetrate through the cylindrical slot to fix the slot and the plug-in block.

Preferably, the contact point comprises a fixed shaft and a fixed plate, the bending parts of the first plate body and the second plate body are respectively provided with a contact point groove, and two ends of the fixed shaft are fixed on the inner wall of the contact point groove.

Preferably, a torsion spring is fixed on the fixed shaft, and rod bodies extending out of two ends of the torsion spring are respectively fixed on the contact point groove and the fixed plate and used for enabling the fixed plate to press downwards, and contacts are fixed at the bottom of the fixed plate.

Compared with the prior art, the utility model has the beneficial effects that:

in order to overcome the defects and the shortcomings of the prior art, the utility model provides the contact plate of the contactor, which has reasonable structural arrangement and convenient assembly and processing, the first contact plate and the second contact plate can be disassembled according to the size of the conductive bars, the upper side surface and the lower side surface of the first contact plate and the lower side surface of the second contact plate are externally used for installing the conductive bars, and the surface parts of the first contact plate and the second contact plate are not raised, so that the conductive connection between the conductive bars and the connecting parts can be ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a first contact plate structure according to the present utility model;

FIG. 3 is a schematic view of a second contact plate structure according to the present utility model;

fig. 4 is a schematic view of the contact point structure of the present utility model.

In the figure:

1. a first contact plate; 11. a first plate body; 12. a bending region; 13. a cylindrical groove; 14. a connection hole; 15. a slot;

2. a second contact plate; 21. a second plate body; 22. a contact point groove; 23. inserting blocks; 24. a connecting piece; 25. a connecting plate;

3. a contact point; 31. a fixed shaft; 32. a torsion spring; 33. a fixing plate; 34. and a contact.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, the present utility model is described in detail by the following embodiments:

a contact plate for use in an ac contactor, comprising: a first contact plate 1, the first contact plate 1 including a connection portion; the second contact plate 2 is arranged on the right side of the first contact plate 1, the left side of the second contact plate 2 is provided with a plug-in part, and the second contact plate 2 can be detached through the matching and separation of the plug-in part and the connecting part; the contact point 3, the contact point 3 sets up on first contact plate 1 and second contact plate 2 for with the electrically conductive hookup of conducting strip, in this embodiment, in order to overcome shortcoming and the not enough that prior art exists, provide a structural arrangement rationally, the contact plate of the convenient contactor of equipment processing, be used for the installation of conducting strip on the outside of the upper and lower both sides face of its first contact plate 1 and second contact plate 2, can dismantle first contact plate 1 and second contact plate 2 according to the size of conducting strip, its first contact plate 1 and second contact plate 2 surface part do not have the arch, can ensure electrically conductive hookup between conducting strip and the connecting portion.

It is to be added that, first contact plate 1 includes first plate body 11, and first plate body 11 rear side is provided with two bending areas 12, bending areas 12 are the U type, and U type depressed part is used for putting into the electrically conductive row, a plurality of cylindrical grooves 13 have been seted up on first plate body 11 right side, its cylindrical groove 13 internal thread connection has connecting piece 24, second contact plate 2 includes second plate body 21, its second plate body 21 bottom is provided with connecting plate 25, on the first plate body 11, the connecting plate 2, connecting plate 25 is last all to have seted up connecting hole 14, can make first plate body 11 go up with second plate body 21 and connecting plate 25 fixed through screw rod passing connecting hole 14 and connecting plate 25, the grafting portion includes plug 23, the connecting portion includes slot 15, its slot 15 sets up on first plate body 11 right side, and plug 23 and slot 15 are pegged graft and are used for connecting first plate body 11, connecting piece 24 can wear out cylindrical groove 13 and plug 23 fixed with plug 23, in this embodiment, prevent second plate body 21 and prevent to pass through plug 23 and connect the first plate body 11 and second plate body 21 with the electrically conductive row of connecting piece 21 with the connecting plate body 11 right side and plug 23, can make second plate body 21 and plug 23 connect the electrically conductive row's of plug 23 with the connecting plate body 11, can be fixed connection piece 23 with the connecting plate body and plug 23, the connecting plate body is with the connecting plate body 21, the plug 23 is fixed connection hole is with the connecting plate body is with the plug 23.

It should be added that the contact point 3 includes a fixed shaft 31 and a fixed plate 33, the bending parts of the first plate 11 and the second plate 21 are both provided with a contact point groove 22, two ends of the fixed shaft 31 are fixed on the inner wall of the contact point groove 22, a torsion spring 32 is fixed on the fixed shaft 31, rod bodies extending from two ends of the torsion spring 32 are respectively fixed on the contact point groove 22 and the fixed plate 33, for making the fixed plate 33 press downwards, and a contact point 34 is fixed at the bottom of the fixed plate 33.

In specific use, the second plate body 21 is prevented from being arranged on the right side of the first plate body 11, the plug block 23 is plugged into the plug slot 15, the connecting piece 24 penetrates through the cylindrical groove 13 to fix the plug slot 15 and the plug block 23, the first plate body 11 and the second plate body 21 can be fixed, the conductive bars and the first plate body 11 and the second plate body 21 can be fixed by screwing the screw rods to sequentially penetrate through the conductive bars and the connecting holes 14, the surface parts of the first contact plate 1 and the second contact plate 2 are not protruded, conductive connection between the conductive bars and the connecting parts can be ensured, the torsion spring 32 can store and release angular energy, one side of the torsion spring is fixed in the contact point groove 22 in a static state through the fixed shaft 31 in the middle of the spring body, one side of the torsion spring is fixed with the fixed plate 33 by one device, the other side of the torsion spring is fixed with the fixed plate 33, the fixed plate 33 is pressed downwards, the contact point 34 at the bottom of the fixed plate 33 is pressed downwards, the gap between the contact point 34 and the conductive metal plate is reduced, the existence of the gap is avoided, and the temperature rise of the contact plate is avoided, and the self-passing energy consumption of the contact plate is high.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (1)

1. A contact plate for use in an ac contactor, comprising:

a first contact plate (1), the first contact plate (1) comprising a connection portion;

the second contact plate (2) is arranged on the right side of the first contact plate (1), the left side of the second contact plate (2) is provided with a plug-in part, and the second contact plate (2) can be detached through the matching and separation of the plug-in part and the connecting part;

contact point (3), contact point (3) set up on first contact plate (1) and second contact plate (2) for with the electrically conductive hookup of conducting strip, first contact plate (1) including first plate body (11), and first plate body (11) rear side is provided with two bending areas (12), bending area (12) are the U type, and U type depressed part is used for putting into the conducting strip, a plurality of cylindrical grooves (13) have been seted up on first plate body (11) right side, its cylindrical groove (13) female connection has connecting piece (24), second contact plate (2) include second plate body (21), and its second plate body (21) bottom is provided with connecting plate (25), on first plate body (11), second contact plate (2), connecting plate (25) are all seted up connecting hole (14) on all, wear out connecting hole (14) and connecting plate (25) through the screw rod can make on first plate body (11) and second plate body (21) and connecting plate (25) fixed, plug-in connection piece (23) including plug-in connection piece (15) and plug-in connection piece (15) are used for on first plate body (11) and plug-in connection piece (15), the connecting piece (24) can penetrate out of the cylindrical groove (13) to fix the slot (15) and the plug block (23), the contact point (3) comprises a fixed shaft (31) and a fixed plate (33), the contact point groove (22) is formed in the bending parts of the first plate body (11) and the second plate body (21), two ends of the fixed shaft (31) are fixed on the inner wall of the contact point groove (22), the fixed shaft (31) is fixedly provided with a torsion spring (32), rod bodies extending out from two ends of the torsion spring (32) are respectively fixed on the contact point groove (22) and the fixed plate (33) and used for enabling the fixed plate (33) to downwards press, and the bottom of the fixed plate (33) is fixedly provided with a contact point (34).