Search

CN-122004708-A - Door body driving device of dish washing machine and dish washing machine

CN122004708ACN 122004708 ACN122004708 ACN 122004708ACN-122004708-A

Abstract

The invention discloses a door body driving device of a dish washer and the dish washer, wherein the door body driving device of the dish washer comprises a matching piece, a driving assembly and a driving assembly, the matching piece can move relative to a machine body of the dish washer, the matching piece is provided with a matching groove, the matching groove is used for accommodating a hinge of the door body of the dish washer, the driving assembly is connected with the matching piece, the driving assembly is suitable for driving the matching piece to move along a first direction so as to drive the hinge to rotate along the first rotation direction around a rotation axis, the door body is opened to a preset door opening angle, and the first direction is intersected with the rotation axis of the hinge. According to the door driving device of the dish washer, the door body can be automatically opened after the dish washer washes dishes to dry the dishes, and the door driving device can be arranged at the hinge to accurately control the rotation angle of the hinge, so that the speed of automatically opening the door body is controlled, and the safety of automatically opening the door is improved.

Inventors

  • ZHANG LIPING
  • TAN DAWEN
  • LIN YU
  • LI GUOLIANG
  • ZHANG YIZHI
  • MO JIANGANG
  • JIN BO

Assignees

  • 佛山市顺德区美的洗涤电器制造有限公司
  • 美的集团股份有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (16)

  1. 1. A door driving apparatus of a dish washer, comprising: A mating member movable relative to the dishwasher body, the mating member having a mating recess for receiving a hinge of the dishwasher door; a driving assembly connected to the mating member, wherein, The driving assembly is suitable for driving the matching piece to move along a first direction so as to drive the hinge to rotate along a first rotation direction around the rotation axis, so that the door body is opened to a preset door opening angle, and the first direction is intersected with the rotation axis of the hinge.
  2. 2. The door driving device of a dishwasher of claim 1, wherein the driving assembly is further adapted to drive the mating member to move in a second direction to rotate the hinge about the rotation axis in a second rotation direction to close the door, the first direction being opposite the second direction, the first rotation direction being opposite the second rotation direction.
  3. 3. The door driving apparatus of a dishwasher according to claim 1 or 2, wherein the driving assembly comprises a driving member, a gear set and a rack, the gear set comprising at least one gear, the gear set being engaged between the driving member and the rack, The rack is movable along the first direction and the second direction, the rack is connected with the matching piece, the driving piece is used for driving the gear set to rotate so as to drive the rack to move, and the first direction is opposite to the second direction.
  4. 4. A door driving apparatus of a dishwasher according to claim 3, wherein the gear set comprises a plurality of gears, the driving assembly comprises a transmission member through which at least two gears are in transmission connection, the transmission member comprises a connection part and a connection fitting part fixedly connected with the two gears, respectively, the connection part and the connection fitting part are in contact fit and the rotation axes of the connection part and the connection fitting part are parallel, Under the state that the relative torsion force of the connecting part and the connecting matching part is smaller than or equal to a critical value, the connecting part and the connecting matching part synchronously rotate, so that the transmission connection between two adjacent gears is in a communication state; And under the state that the relative torsion force of the connecting part and the connecting matching part is larger than the critical value, the connecting part and the connecting matching part relatively rotate, so that the transmission connection between two adjacent gears is in a disconnected state.
  5. 5. The door driving apparatus of a dishwasher according to claim 4, wherein the connection part has first and second protrusions alternately arranged around a rotation axis, the protrusion height of the first protrusion gradually decreases and the protrusion height of the second protrusion gradually increases in a circumferential direction of the connection part, the connection fitting part includes a plurality of protrusions arranged around the rotation axis, one part of the protrusions being abutted against the first protrusion, the other part of the protrusions being abutted against the second protrusion; In a state where the relative torsion force is greater than the threshold value, each of the convex portions is in contact with the first convex portion and the second convex portion in order.
  6. 6. The door driving device of a dishwasher according to claim 4, wherein the plurality of gears includes a first gear and a second gear, the first gear is provided with the connection portion on an inner circumferential surface and the teeth portion on an outer circumferential surface, the second gear is provided with the teeth portion on an outer circumferential surface, and the connection fitting portion is provided at one axial end of the second gear and is located in the first gear.
  7. 7. The door driving device of a dishwasher according to claim 1, wherein the hinge is separated from the mating groove in a state in which an opening angle of the door is greater than a set opening angle, the set opening angle being greater than or equal to the predetermined opening angle.
  8. 8. The door driving apparatus of a dishwasher according to claim 7, further comprising a first rail and a second rail which are communicated, an extending direction of the first rail is parallel to the first direction, an extending direction of the second rail is intersected with the first direction, the second rail is located at a side of the first rail along the first direction and at a side of the first rail facing away from the hinge, the mating member has a first sliding portion and a second sliding portion, the first sliding portion is slidable along the first rail, the second sliding portion is slidable along the first rail and the second rail, wherein, The second sliding part is positioned on the first track in a state that the opening angle of the door body is smaller than or equal to a preset opening angle, and the second sliding part is positioned on the second track in a state that the opening angle of the door body is larger than the preset opening angle.
  9. 9. The door driving device of a dishwasher according to claim 8, comprising a mounting box including a box body and a cover body, the box body being provided with a first groove, the cover body being provided with a second groove, the cover body being covered on the box body such that the first groove and the second groove are mated to form the first rail and the second rail, the first sliding portion and the second sliding portion each including protrusions respectively located at both sides of the mating member, the protrusions at both sides being movably inserted into the first groove and the second groove, respectively.
  10. 10. The door driving apparatus of a dishwasher of claim 1, wherein the slot sidewall of the fitting recess includes opposite first and second slot walls, the second slot wall being located at one side of the first slot wall in the first direction, In a state that the opening angle of the door body is smaller than or equal to a preset opening angle, the first groove wall, the second groove wall and the projection part of the hinge along the first direction are overlapped; and when the opening angle of the door body is larger than a preset opening angle, the projection of the second groove wall and the hinge along the first direction is staggered, and the preset opening angle is larger than or equal to the preset opening angle.
  11. 11. The door driving device of a dishwasher according to claim 1, wherein the door driving device comprises a limiting member, the engaging member comprises a limiting engaging portion, the limiting member is abutted against the limiting engaging portion in a state in which an opening angle of the door is greater than a set opening angle, the set opening angle is greater than or equal to the predetermined opening angle, and the limiting member is separated from the limiting engaging portion in a state in which the opening angle of the door is less than the predetermined opening angle.
  12. 12. The door driving apparatus of a dishwasher of claim 11, wherein the limit engaging portion is inclined to a side adjacent to the limit member in the first direction in a state in which an opening angle of the door is less than or equal to a predetermined opening angle, and the limit engaging portion is extended in a horizontal direction in a state in which the opening angle of the door is greater than the set opening angle.
  13. 13. The door driving apparatus of a dishwasher according to claim 11, wherein the limiting member includes a limiting elastic member for abutting against the limiting engagement portion, and a limiting member for applying an elastic force to the limiting member in a second direction opposite to the first direction.
  14. 14. A door driving apparatus of a dishwasher according to claim 3, wherein the driving member is configured such that the driving member is operated for a predetermined time to open the door to or close by the predetermined door opening angle, or The door body driving device comprises a first triggering piece and a second triggering piece which are arranged along the first direction, the first triggering piece and the second triggering piece are respectively in communication connection with the driving piece, when the driving piece drives the door body to be opened to a preset opening angle, the rack or the matching piece triggers the second triggering piece to stop driving of the driving piece, and when the driving piece drives the door body to be closed in place, the rack or the matching piece triggers the first triggering piece to stop driving of the driving piece.
  15. 15. A dishwasher, comprising a machine body, a door body and a door body drive device of the dishwasher according to any one of claims 1-14, the door body comprising a door body and a hinge, the door body being rotatably connected with the machine body by means of the hinge, and the hinge having a mating protrusion adapted for a plug-in mating with a mating recess of the mating member.
  16. 16. The dishwasher of claim 15, wherein the path of movement of the mating element is at least partially within the radius of rotation of the mating protrusion.

Description

Door body driving device of dish washing machine and dish washing machine Technical Field The invention relates to the technical field of dish washers, in particular to a door driving device of a dish washer and the dish washer. Background After the dish washer automatically washes the dishes, as the inside of the dish washer is a closed environment, if the dishes in the dish washer are not taken out for a long time, the residual water on the surfaces of the dishes can cause the problems of mildew, bacterial breeding and the like of the dishes. The automatic door opening technology of the dish washer is used in the field of dish washer drying, and after the dish washer automatically washes dishes, the door can be automatically opened at a certain angle, so that air inside and outside the dish washer circulates, water vapor inside the dish washer is discharged, and the purpose of drying the dishes is achieved. However, in the related art, the automatic door opening speed of the dish washer is not controllable, so that the problem that the user is crushed or the dish washer is crushed due to the excessively high door opening speed easily occurs, and the safety is poor. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a door driving device for a dishwasher, which can control the speed of automatically opening a door, and is not easy to cause the problem that a user is injured or the dishwasher is damaged due to too high door opening speed, and has good safety. Another object of the present invention is to provide a dishwasher having the above door driving device. The door body driving device of the dish washer comprises a matching piece and a driving assembly, wherein the matching piece is movable relative to a machine body of the dish washer and is provided with a matching groove, the matching groove is used for accommodating a hinge of the door body of the dish washer, the driving assembly is connected with the matching piece, the driving assembly is suitable for driving the matching piece to move along a first direction so as to drive the hinge to rotate along a first rotating direction around a rotating axis, the door body is opened to a preset opening angle, and the first direction is intersected with the rotating axis of the hinge. According to the door driving device of the dish washer, the door body can be automatically opened after the dish washer washes dishes to dry the dishes, and the door driving device can be arranged at the hinge to accurately control the rotation angle of the hinge, so that the speed of automatically opening the door body is controlled, and the safety of automatically opening the door is improved. In addition, the door driving device of the dish washer according to the above embodiment of the present invention may further have the following additional technical features: according to some embodiments of the invention, the driving assembly is further adapted to drive the mating member to move in a second direction to drive the hinge to rotate about the rotation axis in a second rotation direction to close the door, the first direction being opposite to the second direction, the first rotation direction being opposite to the second rotation direction. According to some embodiments of the invention, the driving assembly comprises a driving member, a gear set and a rack, the gear set comprises at least one gear, the gear set is connected between the driving member and the rack in a meshing manner, the rack is movable along the first direction and the second direction, the rack is connected with the matching member, and the driving member is used for driving the gear set to rotate so as to drive the rack to move, and the first direction is opposite to the second direction. According to some embodiments of the invention, the gear set comprises a plurality of gears, the driving assembly comprises a transmission part, at least two gears are connected in a transmission way through the transmission part, the transmission part comprises a connecting part and a connecting matching part which are respectively fixedly connected with the two gears, the connecting part and the connecting matching part are in contact matching, the rotation axes of the connecting part and the connecting matching part are parallel, the connecting part and the connecting matching part synchronously rotate under the state that the relative torsion force of the connecting part and the connecting matching part is smaller than or equal to a critical value, so that the transmission connection between the two adjacent gears is in a communicating state, and the connecting part and the connecting matching part relatively rotate under the state that the relative torsion force of the connecting part and the connecting matching part is larger than the critical value, so that the transmissio