Packaging box for electronic device

Abstract

The packaging box includes a holder and a housing. The holder includes a number of supporting plates overlapped together. Each of the number of supporting plates defines a number of receiving holes. The housing defines a receiving space to receive the holder and packages the holder in the receiving space. Some of the supporting plates and the housing cooperatively form a number of receiving chambers having different depths.

What is claimed is: 
     
         1 . A packaging box comprising:
 a holder, the holder comprising a plurality of supporting plates overlapped together, each of the plurality of supporting plates defining a plurality of receiving holes; and   a housing defining a receiving space to receive the holder and packaging the holder in the receiving space; wherein some of the supporting plates and the housing cooperatively form a plurality of receiving chambers having different depths.   
     
     
         2 . The packaging box of  claim 1 , wherein the housing comprises a top plate, a first side plate, a bottom plate, a second side plate, and a latching plate foldably connected to each other; the holder is placed on the bottom plate; the top plate and the first side plate are attached to a top surface and one side surface of the holder, the second side plate and the latching plate are attached to another side surface of the holder and the top. 
     
     
         3 . The packaging box of  claim 2 , wherein the housing further comprises a pair of latching members positioned on the top plate and the latching plate, the latching members engage with each other to maintain the holder in the receiving space. 
     
     
         4 . The packaging box of  claim 3 , wherein the latching members include a protrusion protruding from one of the top plate and the latching plate and a latching hole defined in another one of the top plate and the latching plate. 
     
     
         5 . The packaging box of  claim 1 , further comprising a sleeve sleeved outside the housing. 
     
     
         6 . The packaging box of  claim 1 , further comprising a buffer attached to the housing and covering one of the receiving chambers. 
     
     
         7 . The packaging box of  claim 1 , wherein each supporting plate is made of a plurality of bases overlapped and adhered together. 
     
     
         8 . A packaging box comprising:
 a holder, the holder comprising:
 a first supporting plate defining a first receiving hole and a second receiving hole; 
 a second supporting plate defining a third receiving hole and a fourth receiving hole; 
 a third supporting plate defining a fifth receiving hole, a sixth receiving hole, and a seventh receiving hole; and 
   a housing defining a receiving space to receive the holder and packaging the holder in the receiving space; wherein the first, second, and third supporting plate are overlapped together; the first receiving hole and the housing form a first receiving chamber; the third receiving hole, the sixth receiving hole, and the second supporting plate form a second receiving chamber communicating with the first receiving chamber; the fourth receiving hole, the seventh receiving hole, and the bottom plate form a third receiving chamber; the fifth receiving hole and the second supporting plate form a fourth receiving chamber.   
     
     
         9 . The packaging box of  claim 8 , wherein the housing comprises a top plate, a first side plate, a bottom plate, a second side plate, and a latching plate foldably connected to each other; the holder is placed on the bottom plate; the top plate and the first side plate are attached to a top surface and one side surface of the holder, the second side plate and the latching plate are attached to another side surface of the holder and the top. 
     
     
         10 . The packaging box of  claim 9 , wherein the housing further comprises a pair of latching members positioned on the top plate and the latching plate, the latching members engage with each other to maintain the holder in the receiving space. 
     
     
         11 . The packaging box of  claim 10 , wherein the latching members are a protrusion protruding from one of the top plate and the latching plate and a latching hole defined in another one of the top plate and the latching plate. 
     
     
         12 . The packaging box of  claim 8 , further comprising a sleeve sleeved outside the housing. 
     
     
         13 . The packaging box of  claim 8 , further comprising a buffer attached to the housing and covering one of the receiving chambers. 
     
     
         14 . The packaging box of  claim 8 , wherein each supporting plate is made of a plurality of bases overlapped and adhered together.