Robotic mower with collision and detection assemblies

A battery pack assembly for robotic mower comprising:

• at least one battery pack fixing frame, wherein the battery pack fixing frame comprises a first battery pack and a second battery pack arranged opposite to each other;
• wherein
• the battery pack fixing frame further comprises a first bracket, a second bracket;
• and a handle located at a junction of the first and second brackets,
• the first battery pack and the second battery pack are respectively accommodated in two battery accommodating spaces of the battery pack fixing frame;
• the first bracket comprises a first assembling part and two first receiving parts, the two first receiving parts are distributed on left and right sides of the first assembling part,
• the second bracket comprises a second assembling part and two second receiving parts, the two second receiving parts are distributed on left and right sides of the second assembling part;
• the first assembling part is concave shaped and provided with four bracket protrusions and a first connecting portion, the second assembling part is concave shaped and provided with four bracket connecting holes corresponding to the four bracket protrusions and a second connecting portion corresponding to the first connecting portion,
• the concave shaped first assembling part and second assembling part each are provided with a bottom plate and a U-shaped top surface, two upper parts of the U-shaped top surface of each of the first assembling part and the second assembling part are bent outwards to form two bending parts, two of the four bracket protrusions are arranged at right and left side of the bottom plate of the first assembling part, another two of the bracket protrusions are arranged below the two bending parts of the first assembling part, so as to arrange the four bracket protrusions at four right-angled corners of the concave shaped first assembling part, the first connecting portion is arranged at a bottom of the U-shaped top surface, the four bracket connecting holes and the second connecting portion are arranged at corresponding positions on the second assembling part;
• the two first receiving parts and the first assembling part are integrally formed to form the first bracket, the two second receiving parts and the second assembling part are integrally formed to form the second bracket, and the first bracket and the second bracket are assembled to each other to form the battery pack fixing frame through the four bracket protrusions connecting the four bracket connecting holes and the first connecting portion connecting the second connecting portion.