Abstract: An electrical junction box includes a circuit structure and a casing in which the circuit structure is accommodated. The casing includes a case including a case-side peripheral wall portion that extends upright from a peripheral edge of a bottom plate portion, the case having an opening that opens to a lateral side, and accommodating the circuit structure inside, and a cover closing the opening of the case and including a cover-side peripheral wall portion that extends upright from a peripheral edge of a lid plate portion and covers a perimeter of the case-side peripheral wall portion. In a state in which the cover and the case are assembled, a protruding end of the cover-side peripheral wall portion extends to at least such a position that its protruding end is substantially flush with an outer surface of the bottom plate portion.

Abstract: An electrical junction box includes a case including a bottom plate portion and case-side peripheral wall portion extending from a peripheral edge of the bottom plate portion, the case having an opening that opens to a lateral side, a circuit structure is accommodated in the case, and a cover closes the opening and includes a lid plate portion and cover-side peripheral wall portion extending upright from a peripheral edge of the lid plate portion and covering a perimeter of the case-side peripheral wall portion. The circuit structure includes a circuit board and electronic components mounted on a mounting surface of the circuit board, and is accommodated in the case with the mounting surface of the circuit board facing the opening. The circuit structure is disposed in the case with a space allowing water to pass through provided between an inner surface of the bottom plate portion and circuit structure.

Abstract: An electrical junction box includes a case that includes a bottom plate portion and a case-side peripheral wall portion, the case having an opening that opens to a lateral side, and a cover that closes the opening of the case and includes a lid plate portion and a cover-side peripheral wall portion covering a perimeter of the case-side peripheral wall portion. A protruding length of a second upper plate portion of the cover-side peripheral wall portion that is located on the upper side in a state in which the electrical junction box is used is set at such a length that the second upper plate portion protrudes slightly outward beyond an outer surface of the bottom plate portion.

Abstract: An electrical junction box includes a circuit structure and a casing in which the circuit structure is accommodated. The casing includes a case including a case-side peripheral wall portion that extends upright from a peripheral edge of a bottom plate portion, the case having an opening that opens to a lateral side, and accommodating the circuit structure inside, and a cover closing the opening of the case and including a cover-side peripheral wall portion that extends upright from a peripheral edge of a lid plate portion and covers a perimeter of the case-side peripheral wall portion. In a state in which the cover and the case are assembled, a protruding end of the cover-side peripheral wall portion extends to at least such a position that its protruding end is substantially flush with an outer surface of the bottom plate portion.

Abstract: An electrical junction box includes a case including a bottom plate portion and case-side peripheral wall portion extending from a peripheral edge of the bottom plate portion, the case having an opening that opens to a lateral side, a circuit structure is accommodated in the case, and a cover closes the opening and includes a lid plate portion and cover-side peripheral wall portion extending upright from a peripheral edge of the lid plate portion and covering a perimeter of the case-side peripheral wall portion. The circuit structure includes a circuit board and electronic components mounted on a mounting surface of the circuit board, and is accommodated in the case with the mounting surface of the circuit board facing the opening. The circuit structure is disposed in the case with a space allowing water to pass through provided between an inner surface of the bottom plate portion and circuit structure.

Abstract: An electrical junction box includes a case that includes a bottom plate portion and a case-side peripheral wall portion, the case having an opening that opens to a lateral side, and a cover that closes the opening of the case and includes a lid plate portion and a cover-side peripheral wall portion covering a perimeter of the case-side peripheral wall portion. A protruding length of a second upper plate portion of the cover-side peripheral wall portion that is located on the upper side in a state in which the electrical junction box is used is set at such a length that the second upper plate portion protrudes slightly outward beyond an outer surface of the bottom plate portion.

Abstract: An insulating polymer material composition is obtained by adequately adding a curing agent, a curing accelerator or the like to an epoxidized vegetable oil (such as an epoxidizable vegetable oil and fat which is an ester of glycerin and a fatty acid having a double bond portion therein), and heating and three-dimensionally crosslinking the resulting. As the curing agent, the curing accelerator or the like, those used for petroleum-derived polymer materials such as epoxy resins can be used. This polymer material composition is applied to, for example, insulating structures for high-voltage devices including a switching device such as a circuit breaker or disconnector in the casing.