Protective cover and electronic device having the same

Abstract

The present invention discloses a protective cover demountably connected with a display device or an expansion device. The protective cover includes a body, a first fixing element, at least one first shaft, and at least one first supporting element. The body includes at least one body recess. The first fixing element is connected with the body to fixedly dispose the display device or the expansion device on the body. The first shaft is disposed in the body recess. The first supporting element is connected with the first shaft and can be rotated with respect to the first shaft to form a lying state or an erect state; in the lying state, the first supporting element is accommodated in the body recess; in the erect state, the first supporting element is erected to protrude out of the body recess.

What is claimed is: 
     
         1 . A protective cover demountably connected with a display device or an expansion device, the protective cover comprising:
 a body comprising at least one body recess;   a first fixing element connected with the body to fixedly dispose the display device or the expansion device on the body;   at least one first shaft disposed in the at least one body recess; and   at least one first supporting element connected with the at least one first shaft, the at least one first supporting element being capable of rotating with respect to the at least one first shaft to form a lying state or an erect state; when in the lying state, the at least one first supporting element is accommodated in the at least one body recess; when in the erect state, the at least one first supporting element is erected to protrude out of the at least one body recess;   therefore, when the at least one first supporting element is in the lying state, the display device or the expansion device can be superposed and fixedly disposed on the body; when the at least one first supporting element is in the erect state, the at least one first supporting element is used to support the display device such that one side of the display device leans on the at least one first supporting element, thereby allowing the display device to be disposed upright or slantwise on the protective cover.   
     
     
         2 . The protective cover as claimed in  claim 1 , further comprising at least one pair of first magnets, wherein the at least one pair of first magnets has one of the first magnets disposed in the body recess and the other one of the first magnets disposed on the at least one first supporting element; the two first magnets are disposed corresponding to each other and have their like poles disposed on their corresponding planes, thereby allowing the at least one first supporting element to be in the erect state because the two like poles repel each other. 
     
     
         3 . The protective cover as claimed in  claim 2 , further comprising a first fastening component, the first fastening component being connected with the body to fix the at least one first supporting element in the lying state. 
     
     
         4 . The protective cover as claimed in  claim 1  further comprising at least one first elastic element, the at least one first elastic element being connected with the at least one first shaft to cause the at least one first supporting element to be in the erect state. 
     
     
         5 . The protective cover as claimed in  claim 4  further comprising a first fastening component, the first fastening component being connected with the body to fix the at least one first supporting element in the lying state. 
     
     
         6 . The protective cover as claimed in  claim 1 , wherein the first fixing element can be a velcro. 
     
     
         7 . The protective cover as claimed in  claim 1 , wherein the at least one first supporting element comprises a first supporting portion and a first retaining portion, the first retaining portion being connected with the first supporting portion, and the first retaining portion and the first supporting portion having a first opening therebetween. 
     
     
         8 . An electronic device, comprising:
 a display device; and   a protective cover demountably connected with a display device or an expansion device, the protective cover comprising:   a body comprising at least one body recess;   a first fixing element connected with the body to fixedly dispose the display device or the expansion device on the body;   at least one first shaft disposed in the at least one body recess; and   at least one first supporting element connected with the at least one first shaft, the at least one first supporting element being capable of rotating with respect to the at least one first shaft to form a lying state or an erect state; when in the lying state, the at least one first supporting element is accommodated in the at least one body recess; when in the erect state, the at least one first supporting element is erected to protrude out of the at least one body recess;   therefore, when the at least one first supporting element is in the lying state, the display device or the expansion device can be superposed and fixedly disposed on the body; when the at least one first supporting element is in the erect state, the at least one first supporting element is used to support the display device such that one side of the display device leans on the at least one first supporting element, thereby allowing the display device to be disposed upright or slantwise on the protective cover.   
     
     
         9 . The electronic device as claimed in  claim 8 , wherein the protective cover further comprises at least one pair of first magnets, wherein the at least one pair of first magnets has one of the first magnets disposed in the body recess and the other one of the first magnets disposed on the at least one first supporting element; the two first magnets are disposed corresponding to each other and have their like poles disposed on their corresponding planes, thereby allowing the at least one first supporting element to be in the erect state because the two like poles repel each other. 
     
     
         10 . The electronic device as claimed in  claim 9 , wherein the protective cover further comprises a first fastening component, the first fastening component being connected with the body to fix the at least one first supporting element in the lying state. 
     
     
         11 . The electronic device as claimed in  claim 8 , wherein the protective cover further comprises at least one first elastic element, the at least one first elastic element being connected with the at least one first shaft to cause the at least one first supporting element to be in the erect state. 
     
     
         12 . The electronic device as claimed in  claim 11 , wherein the protective cover further comprises a first fastening component, the first fastening component being connected with the body to fix the at least one first supporting element in the lying state. 
     
     
         13 . The electronic device as claimed in  claim 8 , wherein the first fixing element can be a velcro. 
     
     
         14 . The electronic device as claimed in  claim 8 , wherein the at least one first supporting element comprises a first supporting portion and a first retaining portion, the first retaining portion being connected with the first supporting portion, and the first retaining portion and the first supporting portion having a first opening therebetween. 
     
     
         15 . The electronic device as claimed in  claim 8 , further comprising an expansion device, wherein the first fixing element is used for fixing the expansion device on the body, the expansion device comprising:
 a main body comprising at least one main body recess;   a second fixing element connected with the main body to fixedly dispose the display device on the body;   at least one second shaft disposed in the at least one main body recess; and   at least one second supporting element connected with the at least one second shaft, the at least one second supporting element being capable of rotating with respect to the at least one second shaft to form a lying state or an erect state; when in the lying state, the at least one second supporting element is accommodated in the at least one main body recess; when in the erect state, the at least one second supporting element is erected to protrude out of the at least one main body recess.   
     
     
         16 . The electronic device as claimed in  claim 15 , wherein the expansion device further comprises at least one pair of second magnets, wherein the at least one pair of second magnets has one of the second magnets disposed in the main body recess and the other one of the second magnets disposed on the at least one second supporting element; the two second magnets are disposed corresponding to each other and have their like poles disposed on their corresponding planes, thereby allowing the at least one second supporting element to be in the erect state because the two like poles repel each other. 
     
     
         17 . The electronic device as claimed in  claim 16 , wherein the expansion device further comprises a second fastening component, the second fastening component being connected with the main body to fix the at least one second supporting element in the lying state. 
     
     
         18 . The electronic device as claimed in  claim 15 , wherein the expansion device further comprises at least one second elastic element, the at least one second elastic element being connected with the at least one second shaft to cause the at least one second supporting element to be in the erect state. 
     
     
         19 . The electronic device as claimed in  claim 18 , wherein the expansion device further comprises a second fastening component, the second fastening component being connected with the main body to fix the at least one second supporting element in the lying state. 
     
     
         20 . The electronic device as claimed in  claim 15 , wherein the at least one second supporting element comprises a second supporting portion and a second retaining portion, the second retaining portion being connected with the second supporting portion, and the second retaining portion and the second supporting portion having a second opening therebetween.