KR-20260063041-A - A movable table lift device

KR20260063041AKR 20260063041 AKR20260063041 AKR 20260063041AKR-20260063041-A

Abstract

A movable table lift device according to one embodiment of the present invention relates to a movable table lift device that enables a battery pack to be efficiently mounted in an electric vehicle by allowing a battery pack to be placed on a plate and restricting its positional movement, and may comprise: a base portion; a plate that forms a placement space, spaced apart from the base portion by a predetermined distance with respect to the height direction of the movable table lift device; a positional movement portion disposed between the base portion and the plate and implementing positional movement of the plate with respect to the height direction; and a coupling portion that restricts the positional movement of the battery pack by coupling with the battery pack disposed on the plate and the placement space.

Inventors

강희철

Assignees

(주)토비카

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (6)

In a mobile table lift device on which a battery pack mounted in an electric vehicle is placed, Base section; A plate that forms a placement space, spaced apart from the base part by a predetermined distance based on the height direction of the above-described movable table lift device; A positioning member disposed between the base member and the plate, and implementing positional movement of the plate based on the height direction; and A coupling part that restricts the positional movement of the battery pack by coupling with the battery pack disposed in the plate and the placement space; Mobile table lift device.
In paragraph 1, The above plate is, A plurality of coupling grooves are formed at a predetermined location based on the length direction, which is perpendicular to the height direction, to be coupled to the coupling part, and The above-mentioned connecting part is, A main body forming an elongated hole and a first coupling part having a portion inserted into the elongated hole and coupled to the battery pack to restrict the positional movement of the battery pack, further comprising Mobile table lift device.
In paragraph 2, The above first coupling part is, A first-1 coupling part that is partially inserted into the above-mentioned elongated hole and coupled to the battery pack, and a first-2 coupling part that is partially inserted into the above-mentioned elongated hole and coupled to the first-1 coupling part are further provided. The above 1-1 coupling part is, When a portion is inserted into the above-mentioned slot, Positioned in the width direction, which is perpendicular to the height direction, by an external force Mobile table lift device.
In paragraph 3, The above-mentioned connecting part is, It further comprises a second coupling part into which a portion is inserted into the above elongated hole and the above coupling groove, and The above-mentioned connecting part is, Rotated relative to the second coupling part by an external force, Mobile table lift device.
In paragraph 4, The above second coupling part is, Based on the height direction above, A plate positioned such that at least a portion overlaps with the above plate, Mobile table lift device.
In paragraph 1, The above plate is, The battery pack is positioned thereon and further comprises a first plate forming an internal space and a second plate coupled to the first plate but positioned in a longitudinal direction perpendicular to the height direction by an external force. The first plate above is, A guide is formed on the internal space to implement positional movement of the second plate based on the length direction, and The first plate above is, Further provided with a protrusion on the internal space that contacts a part of the second plate and restricts the positional movement of the second plate, The above protrusion is, Applying magnetic force to the second plate to come into contact with the second plate, Mobile table lift device.

Description

A movable table lift device The present invention relates to a mobile table lift device, and more specifically, to a mobile table lift device that enables a battery pack to be efficiently mounted in an electric vehicle by placing the battery pack on a plate and restricting its positional movement. Generally, a scissor-type lift is configured such that an X-shaped link provided between a lower base frame and an upper lifting frame is folded by a hydraulic cylinder to raise and lower the lifting frame, and a mobile lift equipped with a moving wheel is used on-site to move and attach/detach heavy-duty parts of a vehicle. However, with the recent significant proliferation of electric vehicles, there is a problem in that maintenance work, such as repairing or replacing battery modules, cannot be performed efficiently using existing mobile lifts, as this involves tasks like attaching and detaching battery modules. To explain this in detail, electric vehicles are equipped with battery modules that are positioned to the maximum width of both sides of the vehicle to maximize battery capacity by expanding the installation area at the bottom of the vehicle. Furthermore, due to the significant weight, a lift is required for attachment and detachment. However, existing mobile lifts have a problem in that they are difficult to use because the width of the lifting frame is narrow, making it impossible to stably place the electric vehicle's battery modules on the lifting frame, as the lifting frame must be entered between the support arms that spread out to support the vehicle while the vehicle is being lifted by a two-post lift. Additionally, if the lifting frame is expanded, it becomes impossible to enter between the support arms that spread out to support the vehicle in the conventional two-post lift, thus making it unusable. In addition, when attaching a battery module to an electric vehicle, it must be precisely aligned by lifting the module to the mounting position on the vehicle; however, making fine positional adjustments using only the movement of the wheels is considerably difficult, and moving the heavy battery module itself is even more challenging. Consequently, there was a problem in that it was difficult to attach or detach the battery module from an electric vehicle using existing mobile lifts. To solve these problems, Korean registered patent No. 10-2511515 B1 (March 14, 2023) discloses a mobile lift for automobile maintenance that has a variable structure that allows the upper surface of the lifting frame of the mobile lift to be selectively expanded or reduced so as to be able to lift the battery module of an electric vehicle, and allows the upper plate of the lifting frame to be easily moved in all directions within a predetermined width so as to be able to accurately position the battery module at the mounting location of the vehicle for fastening or joining. However, the aforementioned mobile lift for automobile maintenance faces a problem where fine position adjustment is required because the battery module shifts due to vibrations generated during lifting and lowering. FIG. 1 is a perspective view for explaining a movable table lift device according to one embodiment of the present invention in its entirety. FIG. 2 is a photograph exemplarily showing a conventional battery pack that is placed on a different movable table lift device and coupled to the lower part of an electric vehicle in one embodiment of the present invention. FIG. 3 is an exploded perspective view for explaining in detail the components of a movable table lift device according to one embodiment of the present invention. FIG. 4 is a partial plan view for explaining in detail the plate and the coupling part, which are components of a movable table lift device according to one embodiment of the present invention. FIG. 5 is a partial perspective view for explaining in detail the plate and the coupling part, which are components of a movable table lift device according to one embodiment of the present invention. FIG. 6 is a partial side view for explaining in more detail a plate, which is a component of a movable table lift device according to one embodiment of the present invention. FIG. 7 is a partially exploded view and a partially enlarged perspective view for explaining in detail the first plate and the second plate, which are components of a movable table lift device according to one embodiment of the present invention. Specific embodiments of the present invention will be described in detail below with reference to the drawings. However, the concept of the present invention is not limited to the presented embodiments. Those skilled in the art who understand the concept of the present invention may easily propose other inventions that are inferior or other embodiments included within the scope of the concept of the present invention by adding, changing, or deleting other components within the same scope of the concept, and such a