JPS5925295Y2 - electric pot - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric box 1, and particularly relates to a fixing structure between the container and the pedestal.

Generally, an electric box 1 consists of a container with a heater fixed to the inner bottom and a pedestal fixed to the bottom of the container, and the container and pedestal are simply connected to the outer circumference of the bottom wall of the container and the upper opening edge of the pedestal. Since the container and the pedestal are fixed in contact with each other, it is difficult to fix the container and the pedestal in a predetermined position, resulting in misalignment, and the bottom wall of the container is flat so it deforms when fixed, and the outer wall surface of the container Water droplets adhering to the container fell and entered between the outer bottom wall of the container and the upper opening edge of the pedestal, and adhered to the heater lead wires, etc., causing insulation deterioration and corrosion.

The present invention has been devised in view of the above points, and will be explained below based on the drawings.

Reference numeral 1 denotes a cylindrical container with an opening 2 formed in the inner bottom wall, and a continuous ring-shaped protrusion 3 protruding downward on the relatively outer side of the bottom wall and a step 4 formed on the outside thereof. ing.

Reference numeral 5 denotes a submersible heater fixed to the opening 2 with a ring-shaped backing 6 interposed therebetween, and a lead wire 7.7 is led out from the bottom thereof.

Reference numeral 8 denotes a cylindrical pedestal having a connection port 10 with connection terminals 9 fixed in place, 11 a protector such as a temperature fuse fixed to the upper outer wall of the connection port 10, 12 a back cover, and 13 a Reference numeral 14.14 is a mounting screw, which is a mounting metal whose one end is fixed at the same time as the heater 5 is fixed, and whose other end is fixed to the lower part of the inner wall of the pedestal 8 together with the back cover 12.

As the pedestal 8 and the container 1 are fixed by the mounting bracket 13, the upper opening periphery 8a of the pedestal 8 and the stepped portion 4 formed on the outside of the protruding strip 3 engage with each other. and container 1 are fixed concentrically.

At this time, even if an excessive tightening force is applied to the bottom wall of the container 1 as the pedestal 8 is fixed, the protrusion 3 protects the bottom wall.

Even if water droplets that have accidentally adhered to the outer wall of the container 1 enter the pedestal 8 through a small gap between the bottom wall of the container and the upper opening edge of the pedestal, the protrusions 3 will be removed as shown by the arrow. It is prevented from falling along the outer wall and adhering to the heater 5 side, that is, the lead wire 7 side, or the connecting portion side of the connecting terminals 9, 9.

This occurs because the protruding portion 3 is formed into a ring shape that protrudes downward.

Although the present invention is constructed as described above, the container and the pedestal are reliably fixed concentrically, and even if excessive tightening force is applied to the bottom wall of the container, the ridges prevent deformation. be done.

Furthermore, even if water droplets adhering to the outer wall of the container were to enter through the engagement part between the bottom wall of the container and the pedestal, the ridges would prevent them from entering and adhering to the heater side, preventing insulation resistance and corrosion of the connection parts. can be prevented.

Since the pedestal is supported and fixed to the mounting bracket fixed to the heater, it also has the effect of preventing the pedestal from rotating.

[Brief explanation of the drawing]

The drawing is a partial cross-sectional view of an electric box 1 showing an embodiment of the present invention. 1...Container, 3...Protrusion, 5...
... Heater 8 ... cradle, 8a ...
Upper opening periphery.

Claims (1)

[Scope of utility model registration request] A cylindrical container with a bottom, in which a heater is disposed through a part of the inner bottom downwardly, and a pedestal whose top opening is fixed to the outer periphery of the bottom of the container, and the outer periphery of the bottom wall of the container. The pedestal is fixed by forming a protrusion protruding downward on the holder and fixing the pedestal to a mounting bracket that is fixed so as to hang down from the penetrating part of the heater at the same time as the heater is attached to the container. and an electric box 1 characterized in that the upper opening of the pedestal is engaged with the protrusion.