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CN-122003570-A - Refrigerator with a refrigerator body

CN122003570ACN 122003570 ACN122003570 ACN 122003570ACN-122003570-A

Abstract

A refrigerator includes a cabinet, a door to open or close a storage compartment, a pusher to push the door in an opening direction, an elastic device configured to be compressed as the door is pushed by the pusher and to transmit a compression elastic force to the door such that the door is further rotated in the opening direction, and a cam device including an upper cam and a lower cam. The cam gear is configured such that the upper cam is coupled to a lower portion of the door so as to be rotatable with the door, the lower cam is coupled to the lower hinge module, and after the elastic means transmits a compression elastic force to the door, a first inclined surface of the upper cam slides on a second inclined surface of the lower cam to further rotate the door in the opening direction.

Inventors

  • Pu Haoxiang
  • Jin Zhihou
  • SUN SHENGHE
  • Zhao Bingzai
  • CUI MINSHUO

Assignees

  • 三星电子株式会社

Dates

Publication Date
20260508
Application Date
20241203
Priority Date
20240201

Claims (15)

  1. 1. A refrigerator, comprising: a cabinet comprising a storage compartment; A lower hinge module; A door coupled to the cabinet through the lower hinge module, and configured to be rotatable to open and close the storage compartment; a pusher configured to push the door when the storage compartment is closed such that the door rotates in an opening direction; an elastic means configured to be compressed when the door is rotated by a first angle by being pushed by the pusher and to transmit a compression elastic force to the door such that the door is further rotated in the opening direction beyond the first angle, and A cam device, the cam device comprising: an upper cam having a first inclined surface, an A lower cam having a second inclined surface, Wherein the cam device is configured such that: The upper cam is coupled to a lower portion of the door so as to be rotatable with the door, The lower cam is coupled to the lower hinge module, the lower hinge module is coupled to the lower portion of the door, and After the elastic means transmits the compression elastic force to the door, the first inclined surface of the upper cam moves in a sliding manner on the second inclined surface of the lower cam to further rotate the door in the opening direction.
  2. 2. The refrigerator of claim 1, wherein, The upper cam includes: a first planar portion located at a first side of the first inclined surface; A second planar portion located at a second side of the first inclined surface, and A locking portion located at a side of the first planar portion opposite to the first inclined surface.
  3. 3. The refrigerator of claim 2, wherein, The lower cam includes: A third planar portion located at a first side of the second inclined surface; A fourth plane portion located at a second side of the second inclined surface, and A stopper portion located at a side of the fourth plane portion opposite to the second inclined surface.
  4. 4. The refrigerator of claim 3, wherein, The first planar portion contacts the third planar portion based on the storage compartment being closed by the door.
  5. 5. The refrigerator of claim 4, wherein, In response to the door being rotated by the pusher by the first angle, the upper cam is rotated by the first angle in the opening direction while maintaining a state in which the first planar portion of the upper cam is in contact with the third planar portion of the lower cam.
  6. 6. The refrigerator of claim 5, wherein, In response to the door being rotated by the elastic means from the first angle to a second angle that is greater than the first angle, the upper cam is rotated such that the first planar portion of the upper cam moves in a sliding manner along the second inclined surface of the lower cam while the door is rotated from the first angle to the second angle.
  7. 7. The refrigerator of claim 6, wherein, In response to the door being rotated to the second angle by the elastic means, the upper cam is rotated as the first inclined surface of the upper cam slidably moves along the second inclined surface of the lower cam, thereby further rotating the door in the opening direction.
  8. 8. The refrigerator of claim 7, wherein, In response to the first inclined surface of the upper cam being slidably moved along the second inclined surface of the lower cam, and then the first planar portion of the upper cam being in contact with the fourth planar portion of the lower cam, the upper cam stops rotating, and the door stops in a state in which the door is rotated in the opening direction by a third angle.
  9. 9. The refrigerator of claim 8, wherein, In response to a rotational force being transmitted to the door in the opening direction when the door is rotated by the third angle in the opening direction, the upper cam is rotated to move the first planar portion along the fourth planar portion until the locking portion of the upper cam contacts the stopper portion of the lower cam to stop the rotation of the door in a fully opened state.
  10. 10. The refrigerator of claim 1, wherein, The cabinet includes an upper hinge module coupled to an upper portion of the cabinet, the upper hinge module including a hinge shaft through which the door is coupled to the cabinet so as to be rotatable, and The door includes a door cover coupled to an upper portion of the door, and the door cover includes a hinge hole for receiving the hinge shaft.
  11. 11. The refrigerator of claim 10, wherein, The upper hinge module includes a guide shaft protruding toward the door, and The door cover includes a guide hole formed along a circumference of the hinge hole to receive the guide shaft, and the guide hole is configured to be guided by the guide shaft in response to the door being rotated to open and close the storage compartment.
  12. 12. The refrigerator of claim 11, wherein, The guide hole has a width gradually decreasing in a direction from the front of the door toward the rear of the door.
  13. 13. The refrigerator of claim 12, wherein, The guide hole includes: A first portion, the first portion being nearest to the front of the door, and a width of the guide hole being greatest at the first portion; A second portion which is most adjacent to the rear portion of the door and at which the width of the guide hole is smallest, and And a third portion formed between the first portion and the second portion, and a width of the guide hole at the third portion is equal to a thickness of the guide shaft.
  14. 14. The refrigerator of claim 13, wherein, The guide shaft is positioned at the first portion of the guide bore based on the door being positioned to enclose the storage compartment; Based on the door being rotated to open the storage compartment, the guide hole moves along the guide shaft such that a position of the guide shaft is changed from the first portion to the third portion, and Based on the door being rotated in the opening direction by the cam device, the guide hole moves along the guide shaft until movement of the guide hole is restrained based on the guide shaft being positioned at the second portion.
  15. 15. The refrigerator of claim 14, wherein, Based on the rotational force being transmitted to the door in the opening direction when the guide shaft is positioned at the third portion, the guide hole moves along the guide shaft until the guide shaft is positioned in the second portion, and then further rotational movement of the door in the opening direction is restrained based on the guide shaft being positioned at the second portion.

Description

Refrigerator with a refrigerator body Technical Field The present disclosure relates to a refrigerator having an improved device for automatically opening a door. Background Generally, a refrigerator, an appliance for keeping food fresh, includes a cabinet having a storage compartment and a cool air supply device for supplying cool air to the storage compartment. The storage compartment includes a refrigeration compartment in which food is kept refrigerated at a temperature of about 0 ℃ to 5 ℃ and a freezing compartment in which food is kept frozen at a temperature of about 0 ℃ to-30 ℃. The cabinet is provided with a door at a front side to open and close the storage compartment. A door is rotatably mounted on the front side of the cabinet to open and close the storage compartment. The refrigerator may include means for automatically opening the door. The means for automatically opening the door may be operable by a touch sensor, a detection sensor, a voice recognition means, or the like. When the door is closed, the air inside the storage compartment is cooled, causing a temperature difference between the inside and the outside of the storage compartment, and thus a pressure difference between the inside and the outside of the storage compartment. In addition, the door may be in close contact with the cabinet via a gasket to allow the storage compartment to be sealed. Thus, at the beginning of opening the door, a large amount of force may be required to open the door. When a user operates a device (such as a touch sensor, a detection sensor, a voice recognition device, etc.) that opens a door, the door may be opened at an angle. Disclosure of Invention Technical problem to be solved An aspect of the present disclosure provides a refrigerator in which a door may be opened to a first angle by a pusher that automatically opens the door, further opened to a second angle by an elastic means, and further opened to a third angle by a cam means. Further, an aspect of the present disclosure provides a refrigerator in which a door can be stopped in a state of being opened by a cam gear by a third angle. Further, an aspect of the present disclosure provides a refrigerator having a guide shaft and a guide hole formed in an upper portion of a door to allow the door to be stopped in a state in which the door is opened by a third angle. The technical tasks to be achieved herein are not limited to the above-mentioned technical tasks, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the following description. Technical proposal Aspects of the embodiments of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments. According to an embodiment of the present disclosure, a refrigerator may include a cabinet including a storage compartment, a lower hinge module, a door coupled to the cabinet through the lower hinge module and configured to be rotatable to open and close the storage compartment, a pusher configured to push the door when the storage compartment is closed such that the door rotates in an opening direction, an elastic device configured to be compressed when the door rotates by a first angle by being pushed by the pusher and to transfer a compression elastic force to the door such that the door further rotates in the opening direction beyond the first angle, and a cam device including an upper cam having a first inclined surface and a lower cam having a second inclined surface. The cam gear may be configured such that the upper cam is coupled to a lower portion of the door so as to be rotatable with the door, the lower cam is coupled to the lower hinge module coupled to the lower portion of the door, and the first inclined surface of the upper cam slidably moves on the second inclined surface of the lower cam after the elastic means transfers the compression elastic force to the door to further rotate the door in the opening direction. According to an embodiment of the present disclosure, the upper cam may include a first plane portion located at a first side of the first inclined surface, a second plane portion located at a second side of the first inclined surface, and a locking portion located at a side of the first plane portion opposite to the first inclined surface. According to an embodiment of the present disclosure, the lower cam may include a third plane portion located at a first side of the second inclined surface, a fourth plane portion located at a second side of the second inclined surface, and a stopper portion located at a side of the fourth plane portion opposite to the second inclined surface. According to an embodiment of the present disclosure, the first planar portion may contact the third planar portion based on the storage compartment being closed by the door. According to an embodiment of the present disclosure, in