Door lock assembly and electrical appliance

A door lock assembly for locking a door of an electrical appliance, the door lock assembly comprising:

• a rotating wheel, the rotating wheel having a rotating wheel door-closing position and a rotating wheel door-opening position during rotation, and the rotating wheel being configured such that when the door is subjected to an internal push force in a closing position of the door, the rotating wheel can rotate from the rotating wheel door-closing position towards the rotating wheel door-opening position;
• a force adjustment device, the force adjustment device being configured to apply an adjustment force to the rotating wheel, which allows the rotating wheel to have two sections of rotation paths during the rotation thereof from the rotating wheel door-closing position towards the rotating wheel door-opening position, and the two sections of rotation paths comprising:
• a first section of rotation path and a second section of rotation path, the first section of rotation path having a first path start point and a first path end point, the second section of rotation path having a second path start point and a second path end point, and the first path end point coinciding with the second path start point;
• wherein when the rotating wheel moves between the first path start point and the first path end point of the first section of rotation path, there is a first ratio of a change in magnitude of the internal push force to a change in displacement of the door;
• wherein when the rotating wheel moves between the second path start point and the second path end point of the first section of rotation path, there is a second ratio of the change in magnitude of the internal push force to the change in displacement of the door;
• wherein the first ratio is greater than the second ratio;
• wherein the internal push force is a variable internal push force, if the variable internal push force is capable of moving the rotating wheel to any position between the first path start point and the second path end point, the rotating wheel returns to the rotating wheel door-closing position after the variable internal push force disappears;
• and if the variable internal push force moves the rotating wheel to a position beyond the second path end point, the rotating wheel moves along a third section of rotation path to the rotating wheel door-opening position after the variable internal push force disappears;
• wherein the force adjustment device is a pin shaft and the rotating wheel is provided with a cam structure, the cam structure abuts against the pin shaft and has an outer side and an inner side connected to each other, the inner side has a first working side surface and a second working side surface connected to each other, the outer side has a third working side surface, the first working side surface is a concave surface having an inner diameter matching a pin shaft outer diameter, the second working side surface curves from the first working side surface to the third working side surface and protrudes in a first direction, and the third working side surface extends from the second working side surface and protrudes in a second direction that is different from the first direction;
• and in a door-opening process, the abutment position of the cam structure of the rotating wheel against the pin shaft sequentially transits from the first working side surface, through the second working side surface to the third working side surface;
• and
• wherein the first working side surface comprises a circular notch, the pin shaft snap fits into the circular notch, each of the first working side surface, the second working side surface, and the third working side surface have a different surface curvature, a first interaction force is required to move the rotating wheel when the pin shaft is in the circular notch, and at least one different second interaction force is required to move the rotating wheel when the pin shaft is against the second working side surface.