Refrigerator and method for adjusting lid of drawer in refrigeration compartment

Abstract

A refrigerator has a refrigeration compartment, a drawer located inside the refrigeration compartment, and a lid adapted to open or close the drawer. The refrigeration compartment includes: a support module, mounted on an inner side wall of the refrigeration compartment, where the support module includes an elastic member; and a motor module, including a motor, a cam, and a connection portion connected to the lid and the cam. The motor drives the cam to generate a first rotation to push the connection portion to move upward, to cause the lid to compress upward the elastic member, so that the lid ascends to a first position. The motor further drives the cam to generate a second rotation to push the connection portion to move downward, to cause the connection portion and the elastic member to push downward the lid, so that the lid descends to a second position.

1 . A refrigerator, comprising:
 a refrigeration compartment;   a drawer disposed inside said refrigeration compartment;   a lid adapted to open or close said drawer;   said refrigeration compartment, containing:
 an inner side wall; 
 a support module mounted on said inner side wall, said support module having an elastic member; and 
 a motor module having a motor, a cam, and a connection portion connected to said lid and said cam, wherein said motor is adapted to drive said cam to generate a first rotation to push said connection portion to move upward, to cause said lid to compress upward said elastic member, so that said lid ascends to a first position, and is adapted to drive said cam to generate a second rotation opposite to a direction of the first rotation to push said connection portion to move downward, to cause said connection portion and said elastic member to push downward said lid, so that said lid descends to a second position, and the first position is higher than the second position. 
   
     
     
         2 . The refrigerator according to  claim 1 , wherein the first position is a highest position to which said lid ascends under driving of said motor, the second position is a lowest position to which said lid descends under the driving of said motor, said lid is adapted to open said drawer when being in the first position, and said lid is adapted to close said drawer when being in the second position. 
     
     
         3 . The refrigerator according to  claim 1 , wherein said motor module is adapted to drive said lid to vertically move up and down relative to said drawer. 
     
     
         4 . The refrigerator according to  claim 1 , wherein said support module has a support with a groove formed therein, said groove defines an opening toward said lid, and said elastic member is accommodated in said groove. 
     
     
         5 . The refrigerator according to  claim 4 , wherein:
 said inner side wall of said refrigeration compartment includes a left inner side wall and a right inner side wall;   said support module has a first support module and a second support module respectively mounted on said left inner side wall and said right inner side wall of said refrigeration compartment;   said support includes a first support and a second support;   said groove includes a first groove and a second groove;   said elastic member includes a first elastic member and a second elastic member;   said first support module includes said first support provided with said first groove and said first elastic member accommodated in said first groove; and   said second support module includes said second support provided with said second groove and said second elastic member accommodated in said second groove.   
     
     
         6 . The refrigerator according to  claim 5 , wherein said lid contains a first contact portion and a second contact portion respectively disposed on a left-side edge and a right-side edge of said lid, and respectively adapted to be in elastic contact with said first elastic member and said second elastic member. 
     
     
         7 . The refrigerator according to  claim 5 , wherein said first elastic member and said second elastic member are adapted to extend out of a respective said opening from said first groove and said second groove respectively. 
     
     
         8 . The refrigerator according to  claim 6 , wherein said first groove is adapted to completely accommodate said first elastic member and at least partially accommodate said first contact portion, and said second groove is adapted to completely accommodate said second elastic member and at least partially accommodate said second contact portion. 
     
     
         9 . The refrigerator according to  claim 6 , wherein:
 said first groove contains two first grooves disposed at a front and a rear of said first support, and respectively accommodating two said first elastic members, said first contact portion contains two first contact portions disposed at said front and said rear of said first support, and respectively adapted to be in elastic contact with said two first elastic members; and   said second groove contains two second grooves disposed at a front and a rear of said second support, and respectively accommodating two said second elastic members, said second contact portion contains two second contact portions disposed at said front and said rear of said second support, and respectively adapted to be in elastic contact with said two second elastic members.   
     
     
         10 . The refrigerator according to  claim 1 , wherein said lid contains a mounting portion adapted to fix said connection portion, and said mounting portion is disposed in a position equidistant from a left-side edge and a right-side edge of said lid. 
     
     
         11 . The refrigerator according to  claim 1 , wherein said motor is adapted to drive said cam to generate the first rotation when a set humidity of said drawer is adjusted from a first humidity range to a second humidity range, and is adapted to drive said cam to generate the second rotation when the set humidity is adjusted from the second humidity range to the first humidity range, wherein any humidity value in the first humidity range is greater than any humidity value in the second humidity range. 
     
     
         12 . The refrigerator according to  claim 1 , wherein:
 said cam contains a cam body and a support portion located on a front end of said cam body, said support portion is adapted to perform eccentric rotation during the first rotation and the second rotation; and   said connection portion contains a sleeve portion whose inner surface is partially engaged with an outer periphery of said support portion of said cam, said sleeve portion is adapted to abut against an outer periphery of said support portion of said cam only in a vertical direction during the first rotation and the second rotation.   
     
     
         13 . The refrigerator according to  claim 1 , wherein said elastic member has a spring and a slider, and said lid is adapted to be in elastic contact with said spring through said slider. 
     
     
         14 . The refrigerator according to  claim 1 , wherein said motor module has a cam front lid, said cam front lid is disposed on a front side of said cam and has a first hole formed therein, and said cam has a front surface with a protrusion extending forward and passing through said first hole. 
     
     
         15 . The refrigerator according to  claim 1 , wherein said motor is adapted to drive said cam to generate the first rotation when a set temperature of said refrigeration compartment is adjusted from a first temperature range to a second temperature range, and is adapted to drive said cam to generate the second rotation when the set temperature is adjusted from the second temperature range to the first temperature range, wherein any temperature value in the first temperature range is greater than any temperature value in the second temperature range. 
     
     
         16 . The refrigerator according to  claim 1 , wherein:
 said motor module contains a cam rear lid, said cam rear lid is disposed on a rear side of said cam, said the cam rear lid has a front surface with a blocking portion, said cam has a rear surface with a motion portion; and   when said lid ascends to a highest position, one end of said blocking portion abuts against one end of said motion portion to prevent said motion portion from continuing to move, and when said lid descends to the second position, an other end of said blocking portion abuts against an other end of said motion portion to prevent said motion portion from continuing to move.   
     
     
         17 . The refrigerator according to  claim 16 , wherein said cam rear lid has a second hole formed therein, said cam has third hole formed therein, and said motor includes a motor shaft extending forward and passing through said second hole to reach said third hole. 
     
     
         18 . A method for adjusting a lid of a drawer in a refrigeration compartment of the refrigerator according to  claim 1 , which comprises the steps of:
 determining whether an adjustment of the refrigeration compartment belongs to a first adjustment or a second adjustment;   when the adjustment belongs to the first adjustment, driving the cam to generate the first rotation, to push the connection portion to move upward, wherein the lid ascends to the first position based on the upward movement of the connection portion and the upward compression of the lid against the elastic member; and   when the adjustment belongs to the second adjustment, driving the cam to generate the second rotation opposite to the direction of the first rotation, to push the connection portion to move downward, wherein the lid descends to the second position based on the downward movement of the connection portion and the downward push of the elastic member, wherein the first position is higher than the second position.   
     
     
         19 . The method according to  claim 18 , wherein:
 the first adjustment is that a set temperature of the refrigeration compartment is adjusted from a first temperature range to a second temperature range and the second adjustment is that the set temperature is adjusted from the second temperature range to the first temperature range, and any temperature value in the first temperature range is greater than any temperature value in the second temperature range; or   the first adjustment is that a set humidity of the drawer is adjusted from a first humidity range to a second humidity range, the second adjustment is that the set humidity is adjusted from the second humidity range to the first humidity range, and any humidity value in the first humidity range is greater than any humidity value in the second humidity range.