CN220439501U

CN220439501U - DC contactor

Info

Publication number: CN220439501U
Application number: CN202321074093.3U
Authority: CN
Inventors: 李新峰; 李新研; 胡波
Original assignee: Yueqing Senheng Electrical Appliances Co ltd
Current assignee: Yueqing Senheng Electrical Appliances Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2024-02-02
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a direct current contactor, which belongs to the technical field of contactors and comprises a bracket, a coil, an iron core and main contacts, wherein the coil is arranged on the bracket, the iron core is inserted in the coil, the main contacts are movably arranged at the top end of the bracket, the main contacts are connected to the top of the iron core, two sides of the bracket are provided with side plates, one side of the bottom end of each side plate is welded with a guide plate, each guide plate is provided with a contact assembly, and two sides of each contact assembly are symmetrically matched with a first connecting assembly and a second connecting assembly. The problem of current direct current contactor contact unstable, simultaneously, need carry out vacuum seal to make manufacturing cost improve is solved. The electric shock contact can be stabilized, and vacuum sealing is not needed during manufacturing, so that the manufacturing cost is reduced, the manufacturing process is reduced, and the manufacturing efficiency is improved.

Description

DC contactor

Technical Field

The utility model relates to the technical field of contactors, in particular to a direct current contactor.

Background

The direct current contactor is a contactor with a direct current coil control iron core, and the load of the direct current contactor can be direct current or alternating current. Unlike ac contactors, the core of dc contactors is circular, and is generally made of mild steel or industrial pure iron, since it has no eddy current. The attraction coil of the DC contactor is electrified with DC, so that no impact starting current is generated, and no iron core violent impact phenomenon is generated, so that the DC contactor has long service life and is suitable for the occasion of frequent start and stop.

However, the conventional dc contactor contacts are unstable in contact, and at the same time, vacuum sealing is required, so that the manufacturing cost is increased, and thus, a dc contactor has been proposed.

Disclosure of Invention

The utility model provides a direct current contactor to solve the problems existing in the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model relates to a direct current contactor which comprises a support, a coil, an iron core and a main contact, wherein the coil is arranged on the support, the iron core is inserted in the coil, the main contact is movably arranged at the top end of the support, the main contact is connected to the top of the iron core, two sides of the support are provided with side plates, one side of the bottom end of each side plate is welded with a guide plate, each guide plate is provided with a contact assembly, and two sides of each contact assembly are symmetrically matched with a first connecting assembly and a second connecting assembly.

Further, four groups of connecting blocks are welded on the side plate, every two groups of connecting blocks are flush, the two groups of connecting blocks with the flush top are respectively connected with a first connecting component, the two groups of connecting blocks with the flush bottom are respectively connected with a second connecting component, and the first connecting component and the second connecting component are identical in structure.

Further, a through hole is formed in the guide plate, and the bottom end of the contact assembly is inserted into the through hole.

Further, a connecting plate is welded at one end of the main contact, the connecting plate is connected with an arc extinguisher, convex plates are welded at two sides of the connecting plate, which are connected with the two side plates, and each convex plate is matched and connected with the top end of the contact assembly.

Further, the contact assembly comprises a support rod, and the support rod is inserted into the through hole.

The stop button is sleeved at the bottom end of the supporting rod in a rotating mode, and the stop button is positioned at the bottom end of the guide plate.

And the spring is sleeved on the supporting rod, and the bottom end of the spring is connected with the top end of the guide plate.

And the feeler lever is welded at the top end of the supporting rod, the bottom end of the feeler lever is connected with the top end of the spring, and the top end of the feeler lever is propped against the bottom of the convex plate under the condition of no power-on.

And the normally closed contact is welded on the feeler lever and is connected with the first connecting components at two sides under the condition of no power on.

And the normally open contact is welded on the feeler lever and is arranged in parallel with the normally closed contact, and under the condition of no power on, the normally closed contact is positioned at the top ends of the two second connecting assemblies and is not connected.

Further, the first engagement assembly includes a mounting plate mounted on the connection block, and one end of the mounting plate is provided with a connection terminal.

And the auxiliary contact is welded on one side of the mounting plate, and under the condition of no power on, the bottom end of the auxiliary contact is connected with the top end of the normally closed contact.

The embodiment of the utility model has the following advantages:

1. the structure designed by the utility model has simple integral structure, can improve the stability of contact connection, and simultaneously does not need vacuum sealing, thereby reducing the manufacturing cost, reducing the manufacturing process and improving the manufacturing efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a schematic view of a touch formed product according to the present utility model

FIG. 2 is a schematic perspective view of a contactor according to the present utility model;

FIG. 3 is a schematic side perspective view of the present utility model;

FIG. 4 is a schematic view of the mounting structure on the side plate of the present utility model;

FIG. 5 is a schematic view of a contact assembly according to the present utility model;

in the figure: 1. a bracket; 2. a coil; 3. an iron core; 4. a main contact; 5. a side plate; 6. a guide plate; 7. a contact assembly; 701. a support rod; 702. a stop button; 703. a spring; 704. a feeler lever; 705. a normally closed contact; 706. a normally open contact; 8. a first engagement assembly; 801. a mounting plate; 802. an auxiliary contact; 9. a second engagement assembly; 10. a connecting plate; 11. and (5) connecting a block.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, 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.

Referring to the description, as shown in fig. 1-5, a direct current contactor comprises a bracket 1, a coil 2, an iron core 3 and a main contact 4, wherein the coil 2 is installed on the bracket 1, the iron core 3 is inserted in the coil 2, the main contact 4 is movably installed at the top end of the bracket 1, the main contact 4 is connected at the top of the iron core 3, side plates 5 are installed at two sides of the bracket 1, guide plates 6 are welded at one side of the bottom end of each side plate 5, contact assemblies 7 are installed on each guide plate 6, a first connection assembly 8 and a second connection assembly 9 are symmetrically matched at two sides of each contact assembly 7, the iron core 3 generates magnetism through the energization of the coil 2, the main contact 4 is attracted, and therefore the contact assemblies 7 are disconnected from the first connection assemblies 8 and are combined with the second connection assemblies 9.

Four groups of connecting blocks 11 are welded on the side plate 5, every two groups of connecting blocks 11 are flush, the two groups of connecting blocks 11 with the flush top are respectively connected with a first connecting component 8, the two groups of connecting blocks 11 with the flush bottom are respectively connected with a second connecting component 9, and the first connecting component 8 and the second connecting component 9 are identical in structure.

Further, a through hole is formed in the guide plate 6, and the bottom end of the contact assembly 7 is inserted into the through hole, so as to guide lifting of the supporting rod 701 arranged in the contact assembly 7.

The welding of main contact 4 one end has connecting plate 10, and connecting plate 10 is connected with the arc extinguisher, and the connecting plate 10 has the flange with the both sides that two curb plates 5 link up all welded, and each flange all links up with touching the cooperation of contact assembly 7 top, and when the connection of arc extinguisher can be long circular telegram disconnection to coil 2, the electric arc that produces is prolonged, avoids producing the spark to avoid producing the phenomenon that conflagration or contactor burn out.

The contact assembly 7 comprises a support rod 701, and the support rod 701 is inserted into the through hole.

The catch button 702 is sleeved at the bottom end of the supporting rod 701 in a rotating way, and the catch button 702 is positioned at the bottom end of the guide plate 6 so as to fix the position of the contact assembly 7.

Spring 703, spring 703 cup joints and installs on branch 701, and spring 703 bottom links up with deflector 6 top.

The feeler lever 704, the feeler lever 704 is welded on the top end of the supporting rod 701, and the bottom end of the feeler lever 704 is connected with the top end of the spring 703, and in the non-energized condition, the top end of the feeler lever 704 is propped against the bottom of the convex plate.

Normally closed contact 705, normally closed contact 705 is welded on feeler lever 704, and in the unenergized condition, normally closed contact 705 is connected with first engagement assembly 8 of both sides.

The normally open contact 706, the normally open contact 706 is welded on the feeler lever 704, and is parallel to the normally closed contact 705, and under the condition of no power, the normally closed contact 705 is positioned at the top ends of the two second connection assemblies 9 and is not connected.

The first engagement assembly 8 includes a mounting plate 801, the mounting plate 801 is mounted on the connection block 11, and one end of the mounting plate 801 is provided with a connection terminal.

And an auxiliary contact 802, wherein the auxiliary contact 802 is welded on one side of the mounting plate 801, and the bottom end of the auxiliary contact 802 is connected with the top end of the normally closed contact 705 when the power is not applied.

The real-time scene is specifically: when the two springs 703 are not electrified, the two springs 703 respectively support the feeler levers 704 to lift upwards, so that the two feeler levers 704 are respectively connected with the bottom ends of the two main contacts 4, and simultaneously, the two ends of the normally closed contact 705 are respectively connected with auxiliary contacts 802 arranged in the first connecting assemblies 8 at the two sides, so that the main contacts 4 are separated from the iron core 3;

when the coil 2 is electrified in the electrified state, the iron core 3 generates magnetism, so that the iron core 3 attracts the main contact 4, the main contact 4 descends to be connected with the iron core 3, meanwhile, the two convex plates are in compression joint with the top ends of the two contact rods 704, the two contact rods 704 respectively squeeze the two springs 703, the guide plate 6 guides the supporting rods 701, in the process of pressing down the two contact rods 704, the two ends of the normally closed contact 705 are disconnected with auxiliary contacts 802 arranged in the first connecting assemblies 8 on the two sides, and the normally open contact 706 at the bottom is in compression joint with the auxiliary contacts 802 arranged on the two second connecting assemblies 9 at the bottom.

The utility model solves the problems that the contact of the existing direct current contactor is unstable, and meanwhile, the vacuum sealing is needed, so that the manufacturing cost is increased. The electric shock contact can be stabilized, and vacuum sealing is not needed during manufacturing, so that the manufacturing cost is reduced, the manufacturing process is reduced, and the manufacturing efficiency is improved.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.

Claims

1. The utility model provides a direct current contactor, includes support (1), coil (2), iron core (3) and main contact (4), install coil (2) on support (1), inserted iron core (3) in coil (2), support (1) top movable mounting has main contact (4), main contact (4) link up at iron core (3) top, its characterized in that: side plates (5) are arranged on two sides of the support (1), guide plates (6) are welded on one side of the bottom end of each side plate (5), contact assemblies (7) are arranged on each guide plate (6), and a first connecting assembly (8) and a second connecting assembly (9) are symmetrically matched on two sides of each contact assembly (7).

2. A dc contactor as claimed in claim 1, wherein: four groups of connecting blocks (11) are welded on the side plate (5), every two groups of connecting blocks (11) are flush, the two groups of connecting blocks (11) with the flush top are respectively connected with a first connecting component (8), the two groups of connecting blocks (11) with the flush bottom are respectively connected with a second connecting component (9), and the first connecting component (8) and the second connecting component (9) are identical in structure.

3. A dc contactor as claimed in claim 1, wherein: the guide plate (6) is provided with a through hole, and the bottom end of the contact assembly (7) is inserted into the through hole.

4. A dc contactor as claimed in claim 1, wherein: the main contact (4) one end welding has connecting plate (10), connecting plate (10) are connected with the arc extinguisher, connecting plate (10) all welds the flange with the both sides that two curb plates (5) link up, each the flange all links up with touching contact assembly (7) top cooperation.

5. A dc contactor as claimed in claim 1, wherein: the contact assembly (7) comprises a supporting rod (701), and the supporting rod (701) is inserted into the through hole;

the blocking button (702) is sleeved at the bottom end of the supporting rod (701) in a rotating mode, and the blocking button (702) is positioned at the bottom end of the guide plate (6);

the spring (703) is sleeved on the supporting rod (701), and the bottom end of the spring (703) is connected with the top end of the guide plate (6);

the feeler lever (704), the said feeler lever (704) welds on top of the fulcrum bar (701), and the bottom of feeler lever (704) links with top of the spring (703), under the unenergized condition, the top of feeler lever (704) is propped against the bottom of the convex plate;

the normally closed contact (705), the said normally closed contact (705) is welded on feeler lever (704), under the unenergized condition, the normally closed contact (705) is connected with the first engagement assembly (8) of both sides;

and the normally open contact (706) is welded on the feeler lever (704) and is arranged in parallel with the normally closed contact (705), and under the condition of no power on, the normally closed contact (705) is positioned at the top ends of the two second connecting components (9) and is not connected.

6. A dc contactor as claimed in claim 1, wherein: the first connecting component (8) comprises a mounting plate (801), the mounting plate (801) is mounted on the connecting block (11), and one end of the mounting plate (801) is provided with a connecting terminal;

and the auxiliary contact (802) is welded on one side of the mounting plate (801), and the bottom end of the auxiliary contact (802) is connected with the top end of the normally closed contact (705) under the condition of no power.