Battery and connection apparatus

Abstract

A battery includes: a casing that houses a cell inside; and a terminal part that has connection terminals connected to electrode terminals of a connection apparatus, in which the casing includes a top face and a bottom face positioned on opposite sides in a height direction and two side faces positioned between the top face and the bottom face on opposite sides in a widthwise direction, a notch is formed by a level difference face that is continuous from the side face and a groove forming face that is continuous from the bottom face, and a guided groove that is open to the groove forming face is formed in the casing, and the guided groove is positioned on a further bottom face side than the level difference face.

1 . A battery comprising:
 a casing configured to house a battery cell; and   a terminal part including connection terminals configured to connect to electrode terminals of a connection apparatus,   wherein the casing includes   a top face and a bottom face positioned on opposite sides of the casing in a first direction and first and second side faces positioned between the top face and the bottom face on opposite sides of the casing in a second direction,   a front face and a rear face positioned on opposite sides of the casing in a third direction, the third direction being orthogonal to the first direction and the second direction,   a notch formed by a first surface that extends from an edge of the first side face in the second direction and a second surface that extends from an edge of the bottom face in the first direction,   a guided groove that is open along the third direction and into the second surface, and   wherein the guided groove includes a bottom surface that extends in the third direction and is parallel to the first surface, the bottom surface being closer to the bottom face than the first surface.   
     
     
         2 . The battery according to  claim 1 ,
 wherein the guided groove is a first guided groove, the battery further comprising a second guided groove that is open along the third direction and into the second surface;   wherein the second guided groove is positioned closer to the bottom face than to the first surface; and   wherein the second guided groove includes a bottom surface that extends in the third direction, the bottom surface of the second guided groove is parallel to the first surface.   
     
     
         3 . The battery according to  claim 2 , wherein the first guided groove is spaced apart from the second guided groove. 
     
     
         4 . The battery according to  claim 2 ,
 further comprising a third guided groove that is open along the third direction and into the second surface;   wherein the third guided groove is positioned closer to the bottom face than to the first surface; and   wherein the third guided groove includes bottom surface that extends in the third direction, the bottom surface of the third guided groove is parallel to the first surface.   
     
     
         5 . The battery according to  claim 1 ,
 wherein the notch is a first notch, the battery further including a second notch formed by a third surface that extends from an edge of the second side face in the second direction and a fourth surface that extends from an edge of the bottom face in the first direction,   a guided groove that is open along the third direction and into the fourth surface, wherein the guided groove is positioned closer to the bottom face than to the third surface, and   wherein the first notch and the second notch are symmetric about the connection terminals.   
     
     
         6 . The battery according to  claim 1 ,
 wherein the guided groove is a first guided groove, the battery further comprising a second guided groove that is open along the third direction and into the second surface;   wherein the second guided groove is positioned closer to the bottom face than to the first surface; and   wherein the first guided groove and the second guide groove are equidistant from the bottom face in the first direction.   
     
     
         7 . The battery according to  claim 6 ,
 further comprising a third guided groove that is open along the third direction and into the second surface;   wherein the third guided groove is positioned closer to the bottom face than to the first surface; and   wherein the first guided groove, the second guide groove, and the third guided groove are equidistant from the bottom face in the first direction.   
     
     
         8 . The battery according to  claim 1 , wherein the bottom surface of the guided groove and an edge of the first surface intersect the front face of the casing. 
     
     
         9 . The battery according to  claim 1 , wherein the first surface extends from the front face to the rear face in the third direction, and the bottom surface of the guided groove does not extend to the front face and does not extend to the rear face. 
     
     
         10 . The battery according to  claim 9 ,
 wherein the guided groove is a first guided groove, that battery further comprising a second guided groove that is open along the third direction and into the second surface;   wherein the second guided groove includes a bottom surface that extends in the third direction, the bottom surface of the second guided groove is parallel to the first surface; and   wherein the bottom surface of the second guided intersects the front face of the casing.   
     
     
         11 . The battery according to  claim 1 , wherein the guide groove is open to the bottom face along the first direction. 
     
     
         12 . The battery according to  claim 1 , wherein a first end of the guided groove and a first end of the first surface are positioned along the same longitudinal direction along the first direction of the battery casing. 
     
     
         13 . The battery according to  claim 1 , wherein the casing includes engagement concave parts configured to receive engagement protruding parts, the engagement concave parts being open along opposite sides of the casing. 
     
     
         14 . The battery according to  claim 13 , wherein the first engagement concave part is located in an area of the guided groove.