CN203521326U

CN203521326U - DC contactor

Info

Publication number: CN203521326U
Application number: CN201320708494.XU
Authority: CN
Inventors: 周庆南
Original assignee: ZHEJIANG NANFENG ELECTRIC APPLIANCE CO Ltd
Current assignee: ZHEJIANG NANFENG ELECTRIC APPLIANCE CO Ltd
Priority date: 2013-11-11
Filing date: 2013-11-11
Publication date: 2014-04-02
Anticipated expiration: 2023-11-11

Abstract

The utility model discloses a DC contactor comprising a shell, major loop connecting terminals, control loop connecting terminals and a protective cover. There are two major loop connecting terminals which are both arranged on the external part of the shell. There are two control loop connecting terminals which are both arranged on the external part of the shell. The protective cover is connected with the shell and then arranged above the major loop connecting terminals so that the two major loop connecting terminals are covered. The protective cover used for covering the two major loop connecting terminals is arranged in the DC contactor so that contact of a falling electric conductor and the major loop connecting terminals can be effectively avoided, and thus shorting between the two major loop connecting terminals does not occur and safety protection level of the product is enhanced.

Description

D.C. contactor

Technical field

The utility model relates to a kind of D.C. contactor, belongs to low-tension switch electric appliance structural design field.

Background technology

D.C. contactor is a kind of electromagnetic switch of controlling large current switching by little current switching, its operation principle is: under the effect at little electric current of the coil of contactor after energising, coil produces magnetic field, thereby the effect conducting of the electromagnetic force producing by coil magnetic field or disconnection major loop, be that moving contact contacts and realizes conducting with fixed contact, moving contact does not contact and realizes power-off with fixed contact, to reach the object of the large electric current of Small current control.

There is same defect in disclosed D.C. contactor in numerous patent documentations such as CN201859815U, CN200956345Y, CN102262981A, CN201000865Y, CN202443919U and CN201868348U: outside two major loop binding posts are all exposed to, if the electric conductor falling from eminence contacts with two major loop binding posts simultaneously, can cause the situation of short circuit between two binding posts.

Utility model content

For the deficiency of pointing out in background technology, the utility model provides a kind of D.C. contactor rational in infrastructure, two major loop binding posts on this D.C. contactor are hidden by protective cover, can effectively avoid the electric conductor falling from eminence to contact with major loop binding post, thereby can there is not the situation of short circuit between two major loop binding posts, improved the class of safety protection of product.

The technical scheme that realizes the utility model object is:

A D.C. contactor, comprises housing;

Major loop binding post, the quantity of described major loop binding post is two, is all located at described outside;

Control loop binding post, the quantity of described control loop binding post is two, is all located at described outside;

This D.C. contactor also comprises protective cover, and it is connected with described housing and is arranged at the top of described major loop binding post, in order to two described major loop binding posts are hidden.

In technique scheme, one-body molded on described housing have a dividing plate that two described major loop binding posts are separated.

In technique scheme, described protective cover hides two described control loop binding posts.

In technique scheme, described control loop binding post is plug-in type connecting terminal structure, and the position that described protective cover is relative with described control loop binding post is provided with perforation.

In technique scheme, described control loop binding post and described major loop binding post are all located at the top of described housing.

In technique scheme, described control loop binding post is located at the side of described housing, and the setting party of described control loop binding post is to vertical with the short transverse of described housing.

In technique scheme, described major loop binding post is bolt type connection terminal structure.

In technique scheme, one-body molded on described housing have a mounting panel, and described mounting panel is provided with installing hole.

The utlity model has positive effect: in (1) D.C. contactor of the present utility model, due to protective cover being set, two major loop binding posts are hidden, can effectively avoid the electric conductor falling from eminence to contact with major loop binding post, thereby can there is not the situation of short circuit between two major loop binding posts, improve the class of safety protection of product, there is good result of use.(2) in D.C. contactor of the present utility model, by between two described major loop binding posts, dividing plate being set, can increase creepage distance, thereby increase the class of safety protection of product.(3) in D.C. contactor of the present utility model, described control loop binding post is plug-in type connecting terminal structure, and at described protective cover and described control loop binding post relative position, perforation is set, so just external cable can be connected with control loop binding post with inserting mode, wiring is very convenient.

Accompanying drawing explanation

Fig. 1 is the front view of the D.C. contactor in embodiment 1;

Fig. 2 is the cutaway view that shown in Fig. 1, D.C. contactor dissects along A-A line;

Fig. 3 is that shown in Fig. 1, D.C. contactor removes the schematic diagram after protective cover;

Fig. 4 is the stereogram of D.C. contactor shown in Fig. 1.

Reference numeral shown in figure is: 1-housing; 11-dividing plate; 12-mounting panel; 2-major loop binding post; 3-control loop binding post; 4-protective cover; 41-perforation.

Embodiment

Below in conjunction with Figure of description, the structure of D.C. contactor of the present utility model is elaborated:

(embodiment 1)

A D.C. contactor, as shown in Figures 1 to 4, comprises housing 1, major loop binding post 2, control loop binding post 3 and protective cover 4; The quantity of described major loop binding post 2 is two, is all located at described housing 1 outside; The quantity of described control loop binding post 3 is two, is all located at described housing 1 outside; Described protective cover 4 is connected with described housing 1 and is arranged at the top of described major loop binding post 2, in order to two described major loop binding posts 2 are hidden; Described protective cover 4 can adopt screw to be connected with housing 1, also can adopt the modes such as clamping, splicing to be connected with housing 1.In the D.C. contactor of the present embodiment by the protective cover 4 that hides two described major loop binding posts 2 is set, so, can effectively avoid the electric conductor falling from eminence to contact with major loop binding post 2, thereby can there is not the situation of short circuit between two major loop binding posts 2, improve the class of safety protection of product, there is good result of use.

One-body molded on the described housing 1 of the present embodiment have a dividing plate 11 that two described major loop binding posts 2 are separated, and by adopting this structure can increase creepage distance, thereby improves the class of safety protection of product.

The described protective cover 4 of the present embodiment hides two described control loop binding posts 3, by adopting this structure to can further improve the class of safety protection of product.

The described control loop binding post 3 of the present embodiment is plug-in type connecting terminal structure, the position that described protective cover 4 is relative with described control loop binding post 3 is provided with perforation 41, by adopting this structure, external wire is pegged graft to form with described control loop binding post 3 through described perforation and is electrically connected to, and wiring is very convenient.

The described control loop binding post 3 of the present embodiment and described major loop binding post 2 are all located at the top of described housing 1; Described major loop binding post 2 is bolt type connection terminal structure.

In order to facilitate D.C. contactor to install, one-body molded on the described housing 1 of the present embodiment have a mounting panel 12, and described mounting panel 12 is provided with installing hole, by adopting this structure D.C. contactor to be installed and to be fixed without additionally setting up mount pad.

(embodiment 2)

The present embodiment is substantially the same manner as Example 1, difference is: the described control loop binding post 3 of the present embodiment is located at the sidepiece of described housing 1, and the setting party of described control loop binding post 3 is to vertical with the short transverse of described housing 1, by adopting this structure can facilitate D.C. contactor to use at some special occasions.

Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.

Claims

1. a D.C. contactor, comprises housing (1);

Major loop binding post (2), the quantity of described major loop binding post (2) is two, is all located at described housing (1) outside;

Control loop binding post (3), the quantity of described control loop binding post (3) is two, is all located at described housing (1) outside;

It is characterized in that: also comprise protective cover (4), it is connected with described housing (1) and is arranged at the top of described major loop binding post (2), in order to two described major loop binding posts (2) are hidden.

2. D.C. contactor according to claim 1, is characterized in that: the upper one-body molded dividing plate (11) that two described major loop binding posts (2) are separated that has of described housing (1).

3. D.C. contactor according to claim 2, is characterized in that: described protective cover (4) hides two described control loop binding posts (3).

4. D.C. contactor according to claim 3, is characterized in that: described control loop binding post (3) is plug-in type connecting terminal structure, and the position that described protective cover (4) is relative with described control loop binding post (3) is provided with perforation (41).

5. D.C. contactor according to claim 4, is characterized in that: described control loop binding post (3) and described major loop binding post (2) are all located at the top of described housing (1).

6. D.C. contactor according to claim 1, it is characterized in that: described control loop binding post (3) is located at the sidepiece of described housing (1), and the setting party of described control loop binding post (3) is to vertical with the short transverse of described housing (1).

7. according to the D.C. contactor described in any one in claim 1 to 6, it is characterized in that: described major loop binding post (2) is bolt type connection terminal structure.

8. D.C. contactor according to claim 1, is characterized in that: the upper one-body molded mounting panel (12) that has of described housing (1), described mounting panel (12) is provided with installing hole.