CN211858534U

CN211858534U - Impact-resistant contactor

Info

Publication number: CN211858534U
Application number: CN202020559363.XU
Authority: CN
Inventors: 刘永霞; 薛坤
Original assignee: Wuhan Infineon Power Supply Co ltd
Current assignee: Wuhan Infineon Power Supply Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-03
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses an impact-resistant contactor, relating to the technical field of contactors; the two upper sides of the movable magnetic core are both connected with an auxiliary contact movable contact through a support, the lower side of the auxiliary contact movable contact is correspondingly provided with an auxiliary contact fixed head, a groove body with an opening at one end is formed in the contact shell, the inner bottom of the groove body is provided with a buffer spring, the front end of the buffer spring is connected with a fixed plate, the fixed plate is movably connected with the groove body, the front end of the fixed plate is provided with a contact cylinder, the front end of the contact cylinder is provided with a contact point, the outer end of the groove body of the contact shell is provided with a contact type gland, the center of the contact type gland is provided with; the utility model can realize the buffering of the contact, so that the contact can prolong the service life, and has strong shock resistance, and the phenomenon of damage or poor contact is not easy to occur; the stability is improved, and the structure is simple, the operation is simple and convenient, and the use is convenient.

Description

Impact-resistant contactor

Technical Field

The utility model belongs to the technical field of the contactor, concretely relates to contactor shocks resistance.

Background

Contactors are classified into alternating current contactors (voltage AC) and direct current contactors (voltage DC), which are applied to electric power, distribution, and utilization. The contactor is an electric appliance which utilizes a coil to flow current to generate a magnetic field in industrial electricity to close a contact so as to control a load. The power of the action of the AC contactor comes from a magnetic field generated by AC passing through a coil with an iron core, an electromagnetic iron core is formed by overlapping two 'mountain' -shaped young silicon steel sheets, one of the iron cores is fixed and sleeved with a coil, and the working voltage can be selected in various ways. In order to stabilize the magnetic force, a short circuit ring is added on the attraction surface of the iron core. The AC contactor is reset by a spring after power failure.

The existing contactor is easy to cause the phenomenon of poor contact or damage of a contact when being used for long time impact, and the service life is shortened.

SUMMERY OF THE UTILITY MODEL

The contactor aims to solve the problems that the existing contactor is easy to cause poor contact or damage of a contact when being used for long time impact, and the service life is shortened; an object of the utility model is to provide a shock resistance contactor.

The utility model discloses a contactor shocks resistance, including the contactor body, the wire-wrap has solenoid on the fixed magnet of contactor body, and fixed magnet's upside is provided with movable magnetic core, and movable magnetic core's both ends are connected with the reduction spring, and the other end of reduction spring is installed on the casing of contactor body, is connected with main contact movable contact on movable magnetic core's the middle part support, and main contact movable contact's downside is provided with main contact fixed contact, and two upsides of movable magnetic core all have auxiliary contact movable contact through the leg joint, and auxiliary contact movable contact's downside corresponds is provided with the auxiliary contact fixed head, main contact movable contact, main contact fixed contact, auxiliary contact movable contact, auxiliary contact fixed head are the contact that shocks resistance, its characterized in that: the shock-resistant contact comprises a contact shell, a buffer spring, a fixed plate, a contact cylinder, a contact point and a contact gland; one end open-ended cell body has been seted up in the contact shell, and buffer spring is installed to the interior bottom of cell body, and buffer spring's front end is connected with the fixed plate, and fixed plate and cell body swing joint, the contact cylinder is installed to the front end of fixed plate, and the contact point is installed to the front end of contact cylinder, and contact gland is installed to the cell body outer end of contact shell, and the central point of contact gland puts and has seted up the movable groove, contact cylinder and movable groove swing joint.

Preferably, the contact-type gland is provided with a plurality of fixing holes, and the fixing holes are counter-sunk holes.

Preferably, a plurality of supporting points are installed on the outer surface of the contact type gland.

Preferably, the contact point is tapered.

Preferably, the fixing plate is circular, and a wear-resistant layer is arranged on the outer side wall of the fixing plate.

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

the buffer of the contact can be realized, so that the service life of the contact can be prolonged, the shock resistance is strong, and the phenomenon of damage or poor contact is not easy to occur;

secondly, stability is improved, and simple structure, easy and simple to handle, convenient to use.

Drawings

For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the impact-resistant contact of the present invention;

fig. 3 is a schematic view of the middle contact type gland of the present invention.

In the figure: 1-a contactor body; 11-a fixed magnet; 12-a movable magnetic core; 13-main contact movable contact; 14-main contact fixed contact; 15-auxiliary contact movable contact; 16-auxiliary contact fixing head; 21-a contact housing; 22-a buffer spring; 23-fixing the plate; 24-a contact cylinder; 25-contact point; 26-contact gland; 261-a fixation hole; 262-support points.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

It should also be noted that, in order to avoid obscuring the invention with unnecessary details, only the structures and/or process steps that are closely related to the solution according to the invention are shown in the drawings, while other details that are not relevant to the invention are omitted.

As shown in fig. 1, the following technical solutions are adopted in the present embodiment: including contactor body 1, the wire winding has solenoid on contactor body 1's the fixed magnet 11, the upside of fixed magnet 11 is provided with movable core 12, movable core 12's both ends are connected with the reduction spring, the other end of reduction spring is installed on contactor body 1's casing, be connected with main contact movable contact 13 on movable core 12's the middle part support, main contact movable contact 13's downside is provided with main contact fixed contact 14, movable core 12's two upsides all is connected with auxiliary contact movable contact 15 through the support, auxiliary contact movable contact 15's downside corresponds is provided with auxiliary contact fixed head 16, main contact movable contact 13, main contact fixed contact 14, auxiliary contact movable contact 15, auxiliary contact fixed head 16 are shock-resistant contact, its characterized in that:

as shown in fig. 2, the anti-impact contact includes a contact housing 21, a buffer spring 22, a fixing plate 23, a contact cylinder 24, a contact point 25, and a contact gland 26; set up one end open-ended cell body in the contact shell 21, buffer spring 22 is installed to the interior bottom of cell body, buffer spring 22's front end is connected with fixed plate 23, fixed plate 23 and cell body swing joint, contact cylinder 24 is installed to the front end of fixed plate 23, contact point 25 is installed to the front end of contact cylinder 24, contact gland 26 is installed to the cell body outer end of contact shell 21, contact gland can realize the spacing of fixed plate 23, movable groove has been seted up to contact gland 26's central point, contact cylinder 24 and movable groove swing joint.

As shown in fig. 3, a plurality of fixing holes 261 are further formed in the contact type gland 26, and the fixing holes 261 are countersunk bodies.

As shown in fig. 3, further, a plurality of support points 262 are mounted on the outer surface of the contact type cover 26.

Further, the contact point 25 is tapered.

Further, the fixing plate 23 is circular, and a wear-resistant layer is arranged on the outer side wall of the fixing plate 23.

The working principle of the specific embodiment is as follows: the main contact movable contact 13, the main contact fixed contact 14, the auxiliary contact movable contact 15 and the auxiliary contact fixed head 16 are all impact-resistant contacts, so that the phenomenon of damage is not easy to occur during contact in attraction, the service life of the contacts can be prolonged, the contact realizes the buffering of the contact cylinder 24 through the buffer spring 22, the two contact cylinders 24 are in contact, the buffer spring can realize the buffering of force, so that the two contact points can realize contact, the force can be absorbed by the buffer spring 22, the support point on the contact gland 26 can realize support and limit, the support point is an elastic support point, so that the buffer spring is not easy to deform, the phenomenon of poor contact is not easy to occur during frequent contact, and the deformation is not easy to occur.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an anti-impact contactor, includes the contactor body, the winding has solenoid on the fixed magnet of contactor body, and the upside of fixed magnet is provided with movable magnetic core, and movable magnetic core's both ends are connected with the reduction spring, and the other end of reduction spring is installed on the casing of contactor body, is connected with main contact movable contact on movable magnetic core's the middle part support, and main contact movable contact's downside is provided with main contact fixed contact, and two upsides of movable magnetic core all have auxiliary contact movable contact through the leg joint, and the downside of auxiliary contact movable contact corresponds and is provided with the auxiliary contact fixed head, main contact movable contact, main contact fixed contact, auxiliary contact movable contact, auxiliary contact fixed head are anti-impact contact, its characterized in that: the shock-resistant contact comprises a contact shell, a buffer spring, a fixed plate, a contact cylinder, a contact point and a contact gland; one end open-ended cell body has been seted up in the contact shell, and buffer spring is installed to the interior bottom of cell body, and buffer spring's front end is connected with the fixed plate, and fixed plate and cell body swing joint, the contact cylinder is installed to the front end of fixed plate, and the contact point is installed to the front end of contact cylinder, and contact gland is installed to the cell body outer end of contact shell, and the central point of contact gland puts and has seted up the movable groove, contact cylinder and movable groove swing joint.

2. An impact-resistant contactor as claimed in claim 1, wherein: a plurality of fixing holes are formed in the contact type press cover, and the fixing holes are counter-sunk holes.

3. An impact-resistant contactor as claimed in claim 1, wherein: and a plurality of supporting points are arranged on the outer surface of the contact type gland.

4. An impact-resistant contactor as claimed in claim 1, wherein: the contact points are tapered.

5. An impact-resistant contactor as claimed in claim 1, wherein: the fixed plate is circular, and the outer side wall of the fixed plate is provided with a wear-resistant layer.