JPS61114639U - - Google Patents

Description

[Brief explanation of drawings]

1A and 1B are a partially enlarged sectional view and a partially enlarged plan view showing the body of a conventional relay; FIG. 2 is an enlarged plan view showing a conventional terminal cover;
Fig. 3 is a partially enlarged perspective view showing a conventional relay, and Figs. 4 and 5 a, b, c, and d are exploded enlarged perspective views showing an embodiment of the relay according to this invention, with the terminal cover removed. Enlarged plan view of ivy state,
Enlarged left side view, enlarged sectional view and enlarged right side view,
Figures 6a and 6b are a plan view and a sectional view with the terminal cover removed, showing the operation of the relay in Figure 5;
7a and b are a partially enlarged sectional view and a partially enlarged plan view showing the body of the relay shown in FIG. 5; FIG. 8 is an enlarged plan view showing a terminal cover constituting the relay shown in FIG. 5; The figure is a partially enlarged perspective view showing the relay in Figure 5, Figures 10 and 11.
This figure is a sectional view showing the operation of the electromagnetic device constituting the relay of FIG. 5, and FIGS. 12 and 13 are circuit diagrams of the relay of FIG. 5. 4... Body, 4a, 4b... Body opening, 5... Electromagnet device, 6... Main contact mechanism, 6a, 6b... Its contacts, 7... Auxiliary contact mechanism, 7a, 7b... Its contacts,
8, 9, 10, 11...Terminal plate, 12...Terminal cover, 12a...Protrusion thereof, 12b...Notch groove thereof, 1
3... Keyhole, 13a... Narrow groove part (terminal cover insertion part), 13b... Round hole part (rotation center part), 20
Plunger, 20a, one end thereof, 22, movable body, 23, movable contact, 42, load circuit.

Claims (1)

[Claims for Utility Model Registration] (1) Inside the body, there is an electromagnetic device that can flow current in the forward and reverse directions, and a load circuit switching device whose contacts are operated by the action of this electromagnetic device. It is equipped with a main contact mechanism, an auxiliary contact mechanism for switching the current direction of the electromagnet device, and terminals that connect to each contact of these contact mechanisms and connect wiring from outside the body, and there is an opening in the body through which these terminals are exposed. is covered with an insulating terminal cover, and the terminal cover is attached by inserting the protrusions on both sides of the terminal cover into holes drilled in both side walls of the body opening, and the terminal cover is attached so that the protruding parts on both sides of the terminal cover are inserted into holes drilled in both side walls of the body opening, and the rotation center of the terminal cover is The relay is configured to open and close a body opening, and the hole has a rotation center portion formed deeper than a terminal cover insertion portion, and the terminal cover is located on the side of the rotation center side. The edge has a notched groove facing inward, and the protruding portion is attached by being press-fitted into the rotation center portion of the hole against the elasticity of both sides of the notched groove. Features relay. (2) The main contact mechanism and the auxiliary contact mechanism face a movable body to which a plunger, which moves forward and backward in response to the forward and reverse current flowing through the electromagnetic device, has its tip pivoted, and the main contact mechanism is near one end. a movable contact that is provided with a movable main contact and moves forward and backward as the movable body rotates in the forward and reverse directions, one terminal plate that connects to the movable main contact and connects a load circuit, and a fixed main contact. The movable body rotates forward and backward as the plunger moves forward and backward, thereby opening and closing the load circuit and switching the current direction of the electromagnet device. The relay according to claim 1 of the utility model registration claim.