JPH0664346U - Movable arc runner-fixed structure of electromagnetic contactor - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a fixing structure for a movable contactor and a movable contactor installed at a movable contact portion of an electromagnetic contactor. [Structure] Convex portions 5 and 5 are provided at both ends of a curved portion 6a in the direction perpendicular to both ends of the movable arc runner-1. It is fixed by press-fitting into the notches 9 at both ends.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixed structure of a movable achrunner installed in a movable contact portion used for opening and closing contacts of an electromagnetic contactor.

[0002]

[Prior art]

 As shown in the plan view of the movable contact portion of FIG. 9 and the rear view of the movable contact portion of FIG. 10, the structure for fixing the movable contactor to the movable contact plate, which has been conventionally used, is the surface of the movable contact plate 6b. The rivet 11a, the rivet 11b, and the rivet 11c are fixed to the movable arc runner-1a on the side from the rear side, which requires time and effort for manufacturing and requires parts such as a rivet, which causes a cost increase. It was

[0003]

[Problems to be solved by the device]

 The manufacturing cost is reduced due to the structure in which the movable arc runner is pressed into the movable contact plate and fixed.

[0004]

[Means for Solving the Problems]

 A notch 9 is provided at the center of the tip of the wall 8 of the movable contact plate 6, and projections 5 are provided at both ends of the curved portion 6a at the tip of the movable arc runner 1. The cruncher -1 is press-fitted, and the convex portion 5 is press-fitted into the notch portion 9 to be fixed.

[0005]

[Function of the device]

 A structure having a notch 9 at the center of the tip of the wall 8 of the movable contact plate 6 and a structure having convex portions 5 at both ends of the curved portion 6a at the tip of the movable arc lane-1 are assembled by means of press fitting. Therefore, it can be manufactured at low cost.

[0006]

【Example】

 As shown in the plan view of the movable crawler of the present invention in FIG. 1, fixed portions 2 are provided on both sides of the movable crawler -1 in the central portion thereof in a direction perpendicular to the movable crawler -1. In order to facilitate the formation of the fixing portions 2 and 2 at both ends of the fixing portions 2 and 2, concave portions 3 and 3 are provided. As shown in the front view of the movable crawler of the present invention in FIG. 2, curved portions 6a, 6a are provided at right angles to both ends of the movable crawler of the present invention. As shown in the left side view, slits 4 and 4 are provided at the central portions of the curved portions 6a, 6a of the movable acrunner-1 and convex portions 5 and 5 are provided at both ends of the curved portion 6a.

As shown in the plan view of the movable contact plate of the present invention in FIG. 4, wall portions 8 are formed at right angles to both side surfaces of the movable contact plate 6, and central portions of both ends of the wall portions 8 and 8 are formed. The protrusions 10 and 10 partially surround the notches 9 and 9.

A method of incorporating the movable arc runner-1 into the movable contact plate 6 will be described below. As shown in FIG. 7 in which the movable acrunner of the present invention is press-fitted and fixed to the movable contact plate, the movable acrunner-1 is inserted from above between the wall portions 8 of the movable contact plate 6. By press-fitting the convex portion 5 on the curved portion 6a of the movable contact plate 6 into the notch 9 of the movable arcruner-1, the fixed portions 2 and 2 of the movable arcruner-1 are moved to the movable contact plate 6. It can be fixed to the walls 8, 8.

By providing the slit 4 in the central portion of the curved portion 6a of the movable contact plate 6, it is possible to prevent the movable contact plate 6 from being deformed to the outside when the convex portion 5 of the movable arc runner-1 is press-fitted. Therefore, I aimed to fix it by bending it inside moderately.

As shown in the exploded perspective view of the electromagnetic contactor of the present invention in FIG. 11, the fixed contacts 13 are provided on the power source side and the load side on the base 14 in which the fixed iron core and the drive coil are built. A crossbar 15 having a movable iron core incorporated therein is set in the center of the base 14 which is mounted and has the fixed iron core and the drive coil built therein. The crossbar 15 having the movable iron core incorporated therein has the movable core. The assembly of the arc runner-1 and the movable contact plate 6 is incorporated in the spring bearing 17 of the crossbar 15. The interphase barrier 12 is mounted and fixed in the mounting hole 16 from above the base 14 in which the fixed iron core and the drive coil are incorporated.

[0011]

[Effect of device]

 With the above structure, it is possible to easily fix the movable acrunner to the movable contact plate without using extra parts compared to the conventional one, and it is possible to maintain the same performance as the conventional one. Become.

[Brief description of drawings]

 This will be described below.

FIG. 1 is a plan view of a movable acrunner according to the present invention.

FIG. 2 is a front view of a movable acrunner according to the present invention.

FIG. 3 is a left side view of the movable acrunner of the present invention.

FIG. 4 is a plan view of a movable contact plate of the present invention.

FIG. 5 is a front view of the movable contact plate of the present invention.

FIG. 6 is a left side view of the movable contact plate of the present invention.

FIG. 7 is a plan view of a movable contactor according to the present invention press-fitted and fixed to a movable contact plate.

FIG. 8 is a left side view of a movable contactor according to the present invention press-fitted and fixed to a movable contact plate.

FIG. 9 is a plan view of a conventional assembly of a movable arc runner and a movable contact plate.

FIG. 10 is a bottom view of an assembly of a conventional movable arc runner and a movable contact plate.

FIG. 11 is an exploded perspective view of the electromagnetic contactor of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 movable arc runner 1a movable arc runner 2 fixed part 3 concave part 4 slit 5 convex part 6 movable contact plate 6a curved part 6b movable contact plate 6c movable contact part 8 wall part 9 notch part 10 projecting part 11a rivet 11b Rivet 11c Rivet 12 Interphase barrier 13 Fixed contact 14 Base with fixed iron core and drive coil 15 Crossbar 16 with movable iron core 16 Mounting hole 17 Spring receiving

Claims (1)

[Scope of utility model registration request] 1. A movable contact plate having walls 8, 8 at right angles and having notches 9, 9 partially surrounded by projections 10, 10 at central portions of both ends of the walls 8, 8. 6 has fixing parts 2 and 2 on both side surfaces in a direction perpendicular to 6 and a curved part 6a in a direction perpendicular to both ends,
6a, the curved portion 6a, the slit 4 in the center of the 6a,
4. A movable contactor fixing structure for an electromagnetic contactor, in which a movable contactor 6 having four protrusions 5, 5 at both ends is press-fitted into the notch 9 and the protrusion 5.