Patent ID: 8873243
Filing Date: 2014-10-28
Classification: H05K

Abstract:
1. An electronic device comprising: a circuit substrate provided with at least one electronic circuit; a case that has a bottom opening portion on a bottom side, and accommodates the circuit substrate; and a box-shaped cover having an opening portion on a top side, the cover being disposed to close the bottom opening portion, wherein the case has a pair of groove portions extending in a horizontal direction and being opposite to each other, and a side opening portion provided in a side surface and extending to a position adjacent to an end portion of the groove portion, the groove portions are provided, such that edge portions of the circuit substrate are slidable and inserted into the groove portions from the side opening portion so as to accommodate the circuit substrate in the case, the cover includes a pair of side walls having top end portions that extend in a direction parallel to an extending direction of the groove portions, and a plurality of protrusion portions projecting from the top end portions of the side walls, and the protrusion portions are inserted into a space between the edge portions of the circuit substrate and the groove portions, at a bottom side of the circuit substrate, to fix the circuit substrate.