Shock-resistant protective shell of portable appliance

Abstract

A shock-resistant protective shell for a portable electric appliance includes a protective shell additionally arranged on a surface of a portable electric appliance and matching the shape of the portable electric appliance, with a buffer body protruding towards an exterior of the protective shell arranged at the corner of the protective shell. A primary buffer axis of the buffer body points to the centroid of the portable electric appliance, or the projection of the primary buffer axis in the principal plane of the electric appliance extends along the angular bisector between two adjacent sides. The buffer body is arranged with a secondary buffer axis arranged perpendicular to the primary buffer axis or perpendicular to the principal plane of the portable electric appliance. The thickness of the buffer body is at least 3 times of the average thickness of the rest parts in the protective shell except for the buffer body.

1 . A shock-resistant protective shell for a portable electric appliance, comprising a protective shell additionally arranged on the surface of a portable electric appliance and matching the shape of the portable electric appliance, with a buffer body which protrudes towards the exterior of the protective shell arranged at the corner of the protective shell,
 wherein a primary buffer axis of the buffer body points to the centroid of the portable electric appliance, or the projection of the primary buffer axis in the principal plane of the electric appliance extends along the angular bisector between two adjacent sides;   the buffer body is also arranged with a secondary buffer axis, which is arranged perpendicular to the primary buffer axis or perpendicular to the principal plane of the portable electric appliance; and   the thickness of the buffer body is at least 3 times of the average thickness of the rest parts in the protective shell except for the buffer body.   
     
     
         2 . (canceled) 
     
     
         3 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer stroke of the buffer body is at least 2 times of the average thickness of the rest parts in the protective shell except for the buffer body. 
     
     
         4 . The shock-resistant protective shell for a portable electric appliance according to  claim 3 , wherein the maximum buffer stroke of the buffer body is greater than the ratio of the square of the design ground impact speed to the maximum permissible impact acceleration. 
     
     
         5 . (canceled) 
     
     
         6 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the rigidity of the buffer body in the primary buffer axis direction is 2 times of the ratio of the design ground impact energy to the square of the maximum buffer stroke. 
     
     
         7 . (canceled) 
     
     
         8 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the rigidity of the buffer body in the secondary buffer axis direction is 0.3˜0.5 time of the rigidity in the primary buffer axis direction. 
     
     
         9 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is arranged with a helical spring structure in it made of a metal material, or a rubber material, or a polyurethane material, or a plastic material, or combinations of these above. 
     
     
         10 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is arranged with a flexural spring structure in it made of a metal material, or a rubber material, or a polyurethane material, or a plastic material, or combinations of these above. 
     
     
         11 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is arranged with a shear spring structure consisting of a base, a movable body, and an elastic material arranged between the two parts. 
     
     
         12 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is arranged with a telescopic structure in it consisting of an outer sleeve and at least one movable core;
 in that the moving axis direction of the movable core is arranged along the primary buffer axis of the buffer body; and   in that a friction pair and/or damping air pores are/is arranged between the outer sleeve and the only movable core, or a friction pair and/or damping air pores are/is arranged between the outer sleeve and the movable cores and between adjacent movable cores respectively.   
     
     
         13 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is made of an elastic macromolecular material, which comprises rubber material, PVC material, or polyurethane material. 
     
     
         14 . The shock-resistant protective shell for a portable electric appliance according to  claim 13 , wherein the buffer body is arranged with closed cavities, cavities with open-pore damping structures, closed cavities containing a liquid damping material, or viscous damping structures or pinhole throttling damping structures. 
     
     
         15 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is arranged with local protrusions on it. 
     
     
         16 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is made of a solid damping material at least in part, which comprises high damping rubber material or high damping polyurethane material. 
     
     
         17 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein an integral continuous buffer body is arranged at two corners at the two ends of the same edge in the thickness direction of the protective shell. 
     
     
         18 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body and the protective shell are arranged integrally. 
     
     
         19 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is fixed to the protective shell by anchored connection, adhesive bonding, threaded connection, fastener connection, hinging, snapping connection, or fitting connection. 
     
     
         20 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is made of a metal material, a plastic material, a rubber material, a polyurethane material, a leather material, a natural fiber material or chemical fiber material, or a combination of any at least two of these above. 
     
     
         21 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the buffer body is in a spherical shape at least in part, a ellipsoidal shape at least in part, a plant shape at least in part, a human shape at least in part, an animal shape at least in part, or a cartoon shape at least in part. 
     
     
         22 . The shock-resistant protective shell for a portable electric appliance according to  claim 1 , wherein the protective shell is arranged with local functional through-holes, which are in a square, rectangular, round, apple, triangular, star, or rhombic shape.