Case assembly and refrigeration device

A case assembly, comprising:

• a case, defining a receiving space having an opening;
• a door, configured to block the opening;
• a hinge assembly, disposed body at a pivot side of the case and configured to pivotally connect the case to the door;
• wherein the door has an inner edge and an outer edge at the pivot side, the door has a first reference plane and a second reference plane;
• when the door is in a closed state relative to the case, the inner edge is located on and extend along the first reference plane, and the first reference plane is parallel to a plane in which the opening is located;
• when the door is in a closed state relative to the case, the outer edge is located on and extend along the second reference plane, and the second reference plane is perpendicular to the plane in which the opening is located, the first reference plane and the second reference plane stay stationary with respect to the case while the door is being opened with respect to the case;
• a first hinge point and a second hinge point are formed on the hinge assembly;
• the second hinge point, compared to the first hinge point, is located further away from the outer edge;
• while the door is being opened, under an action of the hinge assembly, with respect to the case, the door has a first movement direction with respect to the case at the first hinge point and has a second movement direction with respect to the case at the second hinge point;
• a first angle is generated between the first movement direction and the first reference plane, a second angle is generated between the second movement direction and the first reference plane;
• when the first movement direction is extending away from the first reference plane, the first angle is expressed as a positive value;
• when the first movement direction is extending away from the second reference plane, an absolute value of the first angle is less than 90 degrees;
• when the second movement direction is extending away from the second reference plane, the second angle is expressed as a positive value;
• when the second movement direction is extending away from the second reference plane, an absolute value of the second angle is less than 90 degrees;
• while the door is being opened from the closed state to a position of a first opening angle relative to the case, the second angle is expressed as the positive value and is less than 90 degrees, the first angle is expressed as the positive value and is decreased gradually from a first initial angle, which is less than 90 degrees, to a first termination angle;
• a difference between the second angle and the first angle, corresponding to a same opening angle between the door and the case, is increased gradually.

A case assembly, comprising:

• a case, defining a receiving space having an opening;
• a door, configured to block the opening;
• a hinge assembly, disposed body at a pivot side of the case and configured to pivotally connect the case to the door;
• wherein the door has an inner edge and an outer edge at the pivot side, the door has a first reference plane and a second reference plane;
• when the door is in a closed state relative to the case, the inner edge is located on and extend along the first reference plane, and the first reference plane is parallel to a plane in which the opening is located;
• when the door is in a closed state relative to the case, the outer edge is located on and extend along the second reference plane, and the second reference plane is perpendicular to the plane in which the opening is located, the first reference plane and the second reference plane stay stationary with respect to the case while the door is being opened with respect to the case;
• a first hinge point and a second hinge point are formed on the hinge assembly;
• the second hinge point, compared to the first hinge point, is located further away from the outer edge;
• while the door is being opened, under an action of the hinge assembly, from a closed state with respect to the case to a position of a maximum opening angle with respect to the case, the first hinge point is configured to move from a starting position to a termination position, a point on the door is defined as a reference point, the reference point coincides with one of the starting position and termination position of the first hinge point, the coincided one of the starting position and termination position is located furthest away from the second reference plane, and the reference point is stationary with respect to the case while the door is being opened;
• a first perpendicular line is generated from the reference point to the outer edge;
• the reference point has a first perpendicular distance, along the first perpendicular line, to the outer edge;
• a second perpendicular line is generated from the reference point to the inner edge;
• the reference point has a second perpendicular distance, along the second perpendicular line, to the inner edge;
• a third angle is generated between the first perpendicular line and the first reference plane, a fourth angle is generated between the second perpendicular line and the first reference plane;
• and
• when the door is being opened from a position of a first opening angle relative to the case to a position of a second opening angle relative to the case, the first perpendicular distance is gradually decreased;
• the third angle is within a range of 0 degrees to 90 degrees and is gradually decreased;
• the fourth angle, when the opening angle between the door and the case is within a predetermined angle range and before the second opening angle between the door and the case is reached, is gradually increased and exceeds 90 degrees;
• and the second perpendicular distance is gradually increased when the opening angle between the door and the case is within the predetermined angle range.