Space-saving device having automatic opening function of opening and closing dishwasher door

By designing a dishwasher door opening and closing device that can be fully accommodated in the cross beam of the electrical frame, the problem of excessive frame cutting and user force in the prior art is solved, and the efficient and reliable function of automatic opening and closing is achieved.

CN119768100APending Publication Date: 2025-04-04ELETTROTECNICA ROLD
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Patent Information

Application Number
CN202380057832.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-03
Filing Date
2023-08-02
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The automatic opening device of the existing dishwasher door needs to cut the cross beam of the electrical frame during installation, resulting in a decrease in the bending ability of the frame; at the same time, the user needs to apply excessive force when closing the door, and the actuator is prone to damage in the extended state.

Method used

A door opening and closing device that can be fully accommodated within the cross beam of the electrical frame is designed, which realizes automatic opening and closing functions by arranging push rods and actuators within the cross beams, and reduces the force requirements of the user when closing the door through the induction rod and spring mechanism.

Benefits of technology

The device avoids cutting the electrical frame and maintains the bending resistance of the frame. At the same time, it reduces the user's force requirements when closing the door, improves the reliability of the device, and prevents damage to the actuator in the extended state.

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Abstract

The invention relates to a device (1, 1 ', 1' ') for opening and closing a door (201) of a dishwasher (200). The invention relates to a device (1) for closing a door (201) of a dishwasher (200), said device (1) comprising a closing unit (50) adapted to be associated with a cross beam (110) of a frame of the dishwasher (200) having a general longitudinal extension (A) and configured to receive a striker pin (40) associated with the door (201) of the dishwasher (200) wherein the closing unit (50) comprises a box-shaped receptacle (50a, 50b) having a general longitudinal axis extension (X), the box-shaped housing (50a, 50b) is adapted to be mounted in the cross beam (110) and to receive the striker pin (40) according to a closing movement direction along a transverse direction (Y) substantially perpendicular to an axis extension direction (X) of the box-shaped housing (50a, 50b) wherein the box-shaped housing (50a, 50b) accommodates a closing element (51), and wherein the box-shaped housing (50a, 50b) is adapted to be mounted in the cross beam (110) and to receive the striker pin (40) according to a closing movement direction along the transverse direction (Y) substantially perpendicular to the axis extension direction (X) of the box-shaped housing (50a, 50b). The closing element (51) is rotationally movable between a closed position in which it holds the striker pin (40) and an open position in which it releases the striker pin (40), in which the closing element (51) is operatively associated with an elastic element (57) acting between the closing element (51) and the receiving body (50a, 50b), the device (1) further comprising a push rod (53) which is operatively associated with the elastic element (57) acting between the closing element (51) and the receiving body (50a, 50b), the push rod (53) is movable in the longitudinal direction (X) of the receiving body (50a, 50b) by means of an actuator (54) and is adapted to abut against a striker element (51c) provided on the closing element (51), the push rod (53) being movable in the longitudinal direction (X) between a non-extended rest position in which the striker element (51c) is arranged and an extended operating position in which the striker element (51c) is arranged on the closing element (51), the receiving body (50a, 50b) comprises an extended operating position in which the push rod (53) exerts a thrust on the striker element (51c) resulting in an opening rotation of the closing element (51) and an opening movement of the pin in a transverse direction (X), in which the receiving body (50a, 50b) further comprises a guide groove (50c) in which the pin (51b) of the closing element (51) can be rotated and slid, and wherein the device further comprises detection or induction means (52, 52 ', 52' ') associated with the return spring (52a), the induction means (52, 52', 52 '') being adapted to selectively close an electrical circuit (56, 56 ') of the appliance when the striker pin (40) is moved to a position corresponding to the closed state (201) to allow a washing cycle to be started after the induction means (52, 52', 52 '') is moved by the striker pin (40).
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