JPS6224941Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal device for connecting a power source to an electric kettle, etc., which has an improved structure of a portion that supplies power to an electric heater.

Conventionally, in the case of a terminal device for connecting a power source to an electric kettle, for design or manufacturing reasons, a terminal accommodating cavity is integrally formed on one side of a bottom cover made of plastic, and the terminal accommodating cavity is recessed by integral molding. A mounting hole was formed in the back wall of the cavity, and a power supply connection terminal was inserted and fixed into the mounting hole. However, with such a conventional structure, it is troublesome to attach the power supply connection terminal to the back wall of the sunken terminal accommodation space, and since the attachment part is made of electrically insulating plastic, the ground wire It was troublesome to derive.

The present invention was devised in view of the above circumstances, and its purpose is to facilitate the installation work of the power supply connection terminal, and also to facilitate the lead-out of the ground wire even if the bottom cover is made of plastic. Furthermore, it is an object of the present invention to provide a terminal device for connecting a power source of an electric kettle, etc., which has a simple structure for molding and punching out a terminal accommodating space.

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is an outer frame, 2 is a reflective case attached to a support frame 3 within the outer frame 1, 4 is a sheathed heater, which is an electric heater, disposed at the inner bottom of the reflective case 2 by an insulator 5, and 6 7 is a hot water switch mechanism installed approximately in the center of the inner bottom of the reflective case 2, 7 is installed inside the outer frame 1 so that the center of the outer bottom is placed on the temperature switch mechanism 6, and the upper end flange is placed on the upper end of the outer frame 1. 8 is a plastic bottom cover, and the structures related to this bottom cover 8 are shown in FIGS. 2 to 4 below.
This will be explained with reference to the drawings. Reference numeral 9 denotes a box-shaped terminal housing cavity formed integrally with the bottom cover 8, the upper surface of which is an opening 10, and the outer surfaces on both left and right sides thereof are provided with convex portions 9a extending in the vertical direction. ，
9a is formed, and a screw hole 9 is formed at the upper end of each
b, 9b are formed. This terminal housing space 9
Also, the front side and the back side opposite to this are open,
An engagement groove 12 is formed so as to span the left and right rising surfaces and the inner bottom surface of the back opening 11, and a portion of the engagement groove 12 is oriented in the vertical direction along the left and right rising surfaces of the back opening 11. Insert the top end into end 1
It is set as 2a. Reference numeral 13 denotes a terminal support insulator, through which two terminal pins 14, 14 are passed through so as to project approximately horizontally within the terminal receiving space 9, and these are fixed with nuts 15. An engaging step portion 13a is formed. 16,1
6 connects one end to the rear end of the terminal pin 14, 14 with the nut 1
Although not shown, the other end of the lead wire 6a is connected to an electric circuit including the sheathed heater 4. The terminal support insulator 13 has its insertion end 12 inserted into the engagement groove 12 such that the terminal pins 14 are located in the terminal receiving cavity 9.
It is engaged and held by insertion from a. 17
is a metal holding plate with 1 through hole in the middle of both edges.
It has a tongue piece 18 formed with a shape 8a, and an upright piece 19 is formed in the middle of the front end. This presser plate 17
is placed in the opening 10 of the terminal accommodating space 9 so as to close it, and in this arrangement state, the rear end side is placed on the engagement step 13a of the terminal support insulator 13, and the tongue pieces on both left and right sides 18, 18 as the convex portions 9a, 9a
and connect it to the ground wire 2 with screws 20, 20.
It is fixed together with the terminal 21a of No. 1. In addition, a plate spring 22 for ground connection on the plug side is attached to the upright piece 19 at the front end.
is screwed so that it is positioned within the terminal accommodating space 9. Therefore, when a power supply plug with a grounding contact piece is inserted into the terminal accommodating space 9, the grounding contact piece naturally comes into contact with the leaf spring 22, and the ground on the power cord side and the ground wire 21 are connected. The terminal support insulator 13 is
is prevented from coming off from the engagement groove 12.

According to this embodiment as described above, the work of attaching the terminal pins 14, 14 to the terminal support insulator 13 can be carried out at a location unrelated to the terminal accommodation space 9, and The terminal support insulator 13 to which the terminal support insulator 13 is fixed can be assembled by inserting it from above into the terminal accommodating cavity 9 of the bottom cover 8 which has a large space above, and the power supply connection terminal is inserted into the back wall of the depressed terminal accommodating cavity. Assembly work is easier than in the past, which required mounting. Furthermore, since the holding plate 17 that holds the terminal support insulator 13 is made of metal, it can also serve as a ground terminal, and even if the bottom cover 8 is made of plastic, it can be easily formed into a desired design, making it easy to lead out the ground. Become. Furthermore, since the terminal accommodating space 9 is a space having an open top surface and one side surface, the mold-cutting structure is simplified.

Note that the present invention is not limited to the embodiments described above and shown in the drawings; for example, the engagement groove portion 11
The shape of the terminal support insulator 13 held therein can be modified in various ways without departing from the spirit of the invention.

As explained above, the present invention includes a terminal housing cavity with one side and a top open, which is formed by integral molding on a plastic bottom cover of an electric kettle, etc.
An engaging groove portion is formed in the inner part of the terminal accommodating cavity so as to be oriented in the vertical direction so that the upper end becomes the insertion end, and the terminal accommodating cavity is held by being inserted into the engaging groove portion from the insertion end. a terminal support insulator to which a terminal pin protruding approximately horizontally is fixed; a metal holding plate attached to cover the top opening of the terminal housing cavity to prevent the terminal support insulator from coming out; As a result, the assembly of the terminal device part is easy, and even if the bottom cover is made of plastic, the ground can be easily led out, and furthermore, the terminal housing cavity can be easily molded. It is possible to provide a terminal device for connecting a power source of an electric kettle, etc., which has the effect of simplifying the above mold-cutting structure.

[Brief explanation of the drawing]

The drawings relate to one embodiment of the present invention,
Fig. 1 is a longitudinal cross-sectional view of the main part, Fig. 2 and Fig. 3 are enlarged longitudinal cross-sectional views and perspective views of the husband terminal device portion, and Fig. 4 is a longitudinal sectional view of the main part.
The figure is also an exploded perspective view. In the figure, 8 is the bottom cover, 9 is the terminal accommodation space, 1
0 is an opening, 12 is an engagement groove, 12a is an insertion end,
13 is a terminal support insulator, 14 is a terminal pin, and 17 is a holding plate.

Claims (1)

[Scope of utility model registration request] A terminal accommodating cavity is formed by integral molding on a plastic bottom cover of an electric kettle, etc. and is open on one side and the top surface, and a terminal accommodating cavity is formed in the inner part of this terminal accommodating cavity in the vertical direction so that the upper end becomes the insertion end. a terminal supporting insulator having a terminal pin fixed to the engaging groove by being inserted from the insertion end and protruding substantially horizontally within the terminal accommodating cavity; A terminal device for connecting a power source of an electric kettle, etc., comprising a metal holding plate attached to cover an upper opening of a storage space and prevent the terminal support insulator from coming out.