A protective frame structure includes: a lower frame; an intermediate frame that is interlinked with the lower frame and is situated above the lower frame; and an upper frame that is interlinked with the intermediate frame and is situated abobe the intermediate frame, wherein a mounting space in which a battery module is configured to be mounted is formed between the lower frame and the intermediate frame, an upper space is formed between the intermediate frame and the upper frame, and the intermediate frame is deformed upward when an external load has been applied to the protective frame structure.

A protective frame structure includes: a lower frame; an intermediate frame that is interlinked with the lower frame and is situated above the lower frame; and an upper frame that is interlinked with the intermediate frame and is situated abobe the intermediate frame, wherein a mounting space in which a battery module is configured to be mounted is formed between the lower frame and the intermediate frame, an upper space is formed between the intermediate frame and the upper frame, and the intermediate frame is deformed upward when an external load has been applied to the protective frame structure.

A vehicle sun visor assembly includes a circuit board having a mounting surface. The vehicle sun visor assembly also includes a top-emitting light emitting diode (LED) mounted on the mounting surface of the circuit board. In addition, the vehicle sun visor assembly includes a light guide having a light emitting surface and a light receiving surface. The light receiving surface is substantially perpendicular to the light emitting surface, and the light guide is configured to receive light emitted from the top-emitting LED through the light receiving surface and to emit the light from the top-emitting LED through the light emitting surface toward a vehicle interior.

An assembly may include an auxiliary power unit housing, a battery box, and a pair of brackets. The battery box may include a base, a first cover and a second cover. The first cover may be removably attached to the base. The auxiliary power unit housing may be mounted to the second cover. The first cover may include a lip that engages a flange of the second cover. The brackets may extend laterally outward from lateral sides of the base.

A fastener assembly includes a stud and a nut. The stud has a proximal end and a distal end with a body therebetween. The stud also has a central axis extending from the proximal end to the distal end. The proximal end has a flange for coupling to a surface. The body has a cavity opening to an orifice at the distal end. The nut is retained within the cavity. Rotation of the nut about the central axis is inhibited.

A fastener assembly includes a stud and a nut. The stud has a proximal end and a distal end with a body therebetween. The stud also has a central axis extending from the proximal end to the distal end. The proximal end has a flange for coupling to a surface. The body has a cavity opening to an orifice at the distal end. The nut is retained within the cavity. Rotation of the nut about the central axis is inhibited.

A drain system is described for allowing fluid to drain from a battery pack while maintaining structural integrity of the battery pack. A frame of the battery pack is comprised of several retaining members in which valves are disposed to allow fluid to exit the battery pack. The valves are positioned such that forces normally experienced while driving a vehicle, such as acceleration, deceleration, and turning forces, cause the fluid to flow toward and through the valves.

A drain system is described for allowing fluid to drain from a battery pack while maintaining structural integrity of the battery pack. A frame of the battery pack is comprised of several retaining members in which valves are disposed to allow fluid to exit the battery pack. The valves are positioned such that forces normally experienced while driving a vehicle, such as acceleration, deceleration, and turning forces, cause the fluid to flow toward and through the valves.

Provided is a battery for a vehicle-mounted refrigerator that includes a battery housing and a battery holder. The battery housing includes a main housing and a battery cover arranged on the top of the main housing. Laterally movable buckle plates are symmetrically arranged between two ends of the battery cover. Two ends of the buckle plates extend out of the respective ends of the battery cover. The middle portion of the buckle plates is disposed outside the battery cover. The buckle plates at both ends are connected by an elastic piece, which is disposed in a limiting groove defined in the battery cover. The battery housing is inserted into the battery holder, where a lower part of one side of the battery housing is provided with an inner concave step portion, and a charging socket is installed at the center of the top of the inner concave step portion. A step is arranged on the lower part of an inner side of the battery holder, and a charging plug corresponding to the charging socket is centrally arranged on the upper side of the step.

Provided is a battery for a vehicle-mounted refrigerator that includes a battery housing and a battery holder. The battery housing includes a main housing and a battery cover arranged on the top of the main housing. Laterally movable buckle plates are symmetrically arranged between two ends of the battery cover. Two ends of the buckle plates extend out of the respective ends of the battery cover. The middle portion of the buckle plates is disposed outside the battery cover. The buckle plates at both ends are connected by an elastic piece, which is disposed in a limiting groove defined in the battery cover. The battery housing is inserted into the battery holder, where a lower part of one side of the battery housing is provided with an inner concave step portion, and a charging socket is installed at the center of the top of the inner concave step portion. A step is arranged on the lower part of an inner side of the battery holder, and a charging plug corresponding to the charging socket is centrally arranged on the upper side of the step.