US-12617259-B2 - Frame structure

Abstract

A frame structure of an electric powered vehicle is for supporting a battery of the electric powered vehicle in which a frame constitutes a chassis, and the frame structure of the electric powered vehicle includes: a front slide rail that is provided on the frame between a front wheel and a rear wheel of the electric powered vehicle over a vehicle width direction and guides and supports a front end side of a battery; and a rear slide rail that is provided on the frame between the front wheel and the rear wheel of the electric powered vehicle over the vehicle width direction and guides and supports a rear end side of the battery.

Inventors

• Shin Shirao

Assignees

• ISUZU MOTORS LIMITED

Dates

Publication Date

20260505

Application Date

20230816

Priority Date

20220926

Claims (2)

1. 1 . A frame structure mounted on an electric powered vehicle, the frame structure comprising: a front slide rail that is provided on a frame of the electric powered vehicle between a front wheel and a rear wheel of the electric powered vehicle over a vehicle width direction and supports a front end side of a battery; a rear slide rail that is provided on the frame between the front wheel and the rear wheel of the electric powered vehicle over the vehicle width direction and supports a rear end side of the battery; a pair of side plate portions that are provided on the left and right ends of the front and rear slide rails, and form an opening that opens in the vehicle width direction between the front and rear slide rails; a guide portion that is formed at least on one end side of the opening in the side plate portions, expands the opening in the vehicle front-rear direction and a height direction toward an outside in the vehicle width direction; and a stopper mechanism that is provided on each of the side plate portions, and restricts movement of the battery inserted during replacement of the battery; wherein the stopper mechanism in each of the side plate portions comprises: a protrusion that protrudes from the inside of the corresponding side plate portion into the opening and is movable up and down, and has an inclined surface facing the outside of the opening and a stopping surface facing the inside of the opening; an elastic member that urges the protrusion upward; an elastic member support that holds the elastic member from below; a cylinder that moves the elastic member support forward and backward; and a control switch that controls the movement of the cylinder, and wherein the battery is replaced by inserting the battery for replacement from one end side of the opening and pushing out the battery to be replaced from the other end side of the opening.
2. 2 . The frame structure according to claim 1 , further comprising a battery reinforcement frame that is provided on both ends of the battery in the vehicle width direction so as to extend in a vehicle front-rear direction to reinforce the battery.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application is entitled to the benefit of Japanese Patent Application No. 2022-153156, filed on Sep. 26, 2022, the disclosure of which including the specification, drawings and abstract is incorporated herein by reference in its entirety. TECHNICAL FIELD The present disclosure relates to a frame structure for supporting a battery of an electric powered vehicle in which the battery of an electric motor for traveling is replaceably mounted. BACKGROUND ART In recent years, electric and electrified vehicles (hereinafter, referred to as electric powered vehicles) such as an electric vehicle (EV) using only a motor as a driving source or a hybrid electric vehicle (HEV) using an engine and a motor as driving sources have been developed in terms of reducing environmental loads in commercial vehicles such as automobiles and trucks. Such electric powered vehicles are equipped with large-capacity batteries for operating motors. However, a battery with a large capacity needs a long time to be charged once a state of charge of the battery is reduced. Meanwhile, as techniques for replacing a battery in an electric powered vehicle, the techniques disclosed in Patent Literature (hereinafter, referred to as PTL) 1, PTL 2, and PTL 3 are known. In the technique of PTL 1, a battery is mounted in a bottom portion of a vehicle body of an electric powered vehicle. At the time of battery replacement, a battery having a low state of charge is removed from the bottom side and set aside using a forklift truck or the like while the vehicle is lifted, or using a dedicated battery replacement device or the like, and a charged battery is attached similarly using the battery replacement device or the like. The technique of PTL 2 is for an electric powered vehicle of a four-wheel scooter type, and a battery is mounted under a seat, which is a central portion of the vehicle. At the time of battery replacement, a battery having a low state of charge is removed from the left side and set aside using a lifting platform trolley or the like, and a charged battery is attached from the left side similarly using the lifting platform trolley or the like. The technique of PTL 3 is for a truck-type electric powered vehicle, and a battery is mounted under a van body, which is a lateral lower portion of the vehicle. Two batteries are held in two respective holding brackets placed in two stages of the upper and lower stages, and at the time of battery replacement, a battery having a low state of charge is removed from the lower side of the vehicle together with the holding bracket while being held by the holding bracket, and a charged battery is set on the holding bracket and attached to the lower side of the vehicle together with the holding bracket. CITATION LIST Patent Literature PTL 1 Japanese Patent Application Laid-Open No. 2012-75212 PTL 2 Japanese Patent Application Laid-Open No. 2013-18385 PTL 3 Japanese Patent Application Laid-Open No. 2018-103765 SUMMARY OF INVENTION Technical Problem However, the techniques of PTLs 1, 2, and 3 all require a step of removing and setting aside a battery having a low state of charge, which reduces the work efficiency of battery replacement. The present disclosure has been made in view of the above point, and an object of the present disclosure is to provide a frame structure capable of enhancing the work efficiency of battery replacement. Solution to Problem In order to achieve the above-described object, a frame structure in the present disclosure includes: a front slide rail that is provided on a frame of an electric powered vehicle between a front wheel and a rear wheel of the electric powered vehicle over a vehicle width direction and supports a front end side of a battery; and a rear slide rail that is provided on the frame between the front wheel and the rear wheel of the electric powered vehicle over the vehicle width direction and supports a rear end side of the battery, in which the battery is replaced by inserting the battery for replacement from one end side of the front slide rail and the rear slide rail and pushing out the battery to be replaced from the other end side of the front slide rail and the rear slide rail. According to this configuration, the frame structure includes the front slide rail that is provided on the frame between the front wheel and the rear wheel of the electric powered vehicle over the vehicle width direction and guides and supports the front end side of the battery, and the rear slide rail that guides and supports the rear end side of the battery, so that the battery is replaceable through the front slide rail and the rear slide rail. Further, a charged battery for replacement (a replacing battery) is inserted from one end side of the front slide rail and the rear slide rail, and a battery (a battery to be replaced) that has a low state of charge and is to be replaced is pushed out from the other end side of the front side rail