Keycap lifting mechanism and long rectangular keyswitch structure

A long rectangular keyswitch structure, the long rectangular keyswitch structure having a long side direction and a short side direction, the long rectangular keyswitch structure comprising:

• a base plate;
• a keycap, the keycap being disposed above the base plate;
• and
• a keycap lifting mechanism, the keycap lifting mechanism comprising:
• a first support, the first support comprising a first long arm and a plurality of first support arms, the first long arm extending parallel to the long side direction, the first support arms protruding and extending from the first long arm non-parallel to the long side direction, the first support being connected to the keycap through the first long arm and being connected to the base plate through the first support arms;
• and
• a second support, the second support comprising a second long arm and a plurality of second support arms, the second long arm extending parallel to the long side direction, the second support arms protruding and extending from the second long arm non-parallel to the long side direction, the second support being connected to the keycap through the second long arm and being connected to the base plate through the second support arms, the first support and the second support being pivotally connected to each other around a pivot axis through the first support arms and the second support arms, the first support arms and the second support arms being staggered along the pivot axis, the pivot axis being parallel to the long side direction, the keycap moving up and down relative to the base plate through the first support and the second support;
• wherein the first support and the second support jointly form a first support structure, a second support structure, and an intermediate support structure along the pivot axis, the intermediate support structure is arranged between the first support structure and the second support structure, and the intermediate support structure comprises two of the first support arms and at least one of the second support arms located between the two first support arms;
• wherein two of the second support arms that are arranged outside the intermediate support structure and adjacent to the two first support arms of the intermediate support structure are not pivotally connected to the two first support arms of the intermediate support structure.

A long rectangular keyswitch structure, the long rectangular keyswitch structure having a long side direction and a short side direction, the long rectangular keyswitch structure comprising:

• a base plate;
• a keycap, the keycap being disposed above the base plate;
• a first support, the first support comprising a first long arm and a plurality of first support arms, the first long arm extending parallel to the long side direction, the first support arms protruding and extending from the first long arm non-parallel to the long side direction, the first support being connected to the keycap through the first long arm and being connected to the base plate through the first support arms;
• a second support, the second support comprising a second long arm and a plurality of second support arms, the second long arm extending parallel to the long side direction, the second support arms protruding and extending from the second long arm non-parallel to the long side direction, the second support being connected to the keycap through the second long arm and being connected to the base plate through the second support arms, the first support and the second support being pivotally connected to each other around a pivot axis through the first support arms and the second support arms, the first support arms and the second support arms being staggered along the pivot axis, the pivot axis being parallel to the long side direction, the keycap moving up and down relative to the base plate through the first support and the second support;
• and
• a switch circuit board, the switch circuit board being stacked on the base plate, the switch circuit board comprising a lower circuit carrier sheet and an upper circuit carrier sheet stacked above the lower circuit carrier sheet, a plurality of lower circuit traces being formed on the lower circuit carrier sheet, a plurality of upper circuit traces being formed on the upper circuit carrier sheet, the lower circuit traces being electrically connected to the upper circuit traces through an electrical connection structure, a vertical projection of the keycap on the switch circuit board covering a portion of the electrical connection structure.