KR-20260062567-A - CONVEYOR DEVICE FOR CYLINDRICAL BATTERY CELL

KR20260062567AKR 20260062567 AKR20260062567 AKR 20260062567AKR-20260062567-A

Abstract

The present invention provides a conveyor device having a cylindrical battery cell itself or a cylindrical carrier that accommodates the same as a transport object, comprising: a conveyor having a predetermined first width and extending along the transport direction; and a pair of wide guides arranged on both sides of the upper width direction of the conveyor, spaced apart from each other by a predetermined second width and extending along the transport direction to support and guide the transport object, wherein the second width is larger than the first width and the diameter of the transport object.

Inventors

김현욱
김대현
김태헌
심규헌
김명기

Assignees

주식회사 엘지에너지솔루션

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (11)

A conveyor device having a cylindrical battery cell itself or a cylindrical carrier that accommodates it as a transport object, A conveyor extending along the conveying direction having a predetermined first width; and A wide guide is included, which is arranged as a pair on both sides of the upper width direction of the conveyor, spaced apart from each other by a predetermined second width, and extends along the conveying direction to support and guide the conveyed material. A conveyor device in which the second width is larger than the first width and the diameter of the conveyed material.
In claim 1, A conveyor device in which the second width is less than or equal to twice the diameter of the conveyed material.
In claim 2, A conveyor device in which the second width is 1.87 times or less the diameter of the conveyed material.
In claim 1, A conveyor device in which the second width is at least 1.5 times the first width.
In claim 1, A conveyor device in which the widthwise gap between the conveyor and the wide guide is smaller than the diameter of the conveyed object.
In claim 5, A conveyor device in which the above gap is less than or equal to the radius of the conveyed object.
In claim 1, A pair of tapered guides connected to the end of each of the aforementioned pair of wide guides on the transport direction side, each of which is inclined to form a predetermined angle with respect to the transport direction; and Additionally comprising a pair of narrow guides connected to the end of each of the aforementioned pair of tapered guides on the transfer direction side and spaced apart from each other by a predetermined third width; A conveyor device in which the third width is greater than or equal to the first width and less than the second width.
In claim 7, A conveyor device comprising a pair of tapered guides including a first tapered guide and a second tapered guide, wherein, along the conveying direction, the point where the first tapered guide starts and the point where the second tapered guide starts are spaced apart by a predetermined distance.
In claim 8, A conveyor device in which the above predetermined distance is greater than or equal to the radius of the conveyed object.
In claim 8, A conveyor device in which the above-mentioned predetermined angle is less than 30 degrees.
In claim 7, A conveyor device in which the third width is at least 1.05 times the first width.

Description

Conveyor Device for Cylindrical Battery Cell The present invention relates to the structure of a conveyor device for transporting a cylindrical battery or a cylindrical carrier that accommodates the same. Secondary batteries, which offer high applicability across product lines and possess electrical characteristics such as high energy density, are widely applied not only to portable devices but also to electric vehicles (EVs) or hybrid electric vehicles (HEVs) powered by electric driving sources. These secondary batteries are attracting attention as a new energy source for improving eco-friendliness and energy efficiency, as they not only have the primary advantage of being able to drastically reduce the use of fossil fuels but also the advantage of not generating any by-products from the use of energy. Currently, widely used types of secondary batteries include lithium-ion batteries, lithium-polymer batteries, nickel-cadmium batteries, nickel-hydrogen batteries, and nickel-zinc batteries. The operating voltage of these unit secondary battery cells, or unit battery cells, is approximately 2.5V to 4.5V. Therefore, if a higher output voltage is required, multiple battery cells are connected in series to form a battery pack. Additionally, depending on the charge/discharge capacity required for the battery pack, multiple battery cells are connected in parallel to form a battery pack. Accordingly, the number of battery cells included in the battery pack and the electrical connection type can be set in various ways depending on the required output voltage and/or charge/discharge capacity. Meanwhile, cylindrical, prismatic, and pouch-type battery cells are known as types of unit secondary battery cells. Among these, cylindrical battery cells are manufactured by housing an electrode assembly in the form of a jelly roll—where electrodes and separators are laminated and wound—into a cylindrical battery can; they are widely used due to their ease of manufacturing and standardization. These cylindrical battery cells are mass-produced in factories and can be transported within the production process by being placed on a conveyor system, either as they are or while housed in a carrier with a cylindrical exterior. FIG. 1 shows a conveyor device for transporting cylindrical battery cells, and FIG. 2 shows a cross-section of the conveyor device. Referring to these drawings, cylindrical battery cells are transported by being placed on a conveyor (2) that travels along the transport direction (X) while being received in a cylindrical carrier (1). At this time, the carrier (1) needs to be discharged in a line at the arrival point of the conveyor (2) so that a predetermined quantity is transported per hour. Meanwhile, in order for this conveyor (2) to function as a buffer for buffering process delays that may occur between the starting point and the destination point and for the continuous supply of carriers (1), the total quantity of carriers (1) being transported needs to be maintained above a predetermined amount. Accordingly, the length of the conveyor (2) needs to be sufficiently long to match the predetermined quantity, and an increase in the length of the conveyor (2) becomes a factor that increases the space occupied by the equipment and the initial investment cost. FIG. 1 shows a conveyor device for transporting cylindrical battery cells, and FIG. 2 shows a cross-section of the conveyor device. FIG. 3 shows the configuration of a conveyor device according to one embodiment. FIG. 4 shows a wide section of a conveyor device according to one embodiment, and FIG. 5 shows a cross-section of the wide section. Figure 6 shows a wide section according to the first comparative example. FIG. 7 shows a merging section of a conveyor device according to one embodiment. Figure 8 shows a merging section according to the second comparative example. Figure 9 shows a merging section according to the third comparative example. FIG. 10 shows a narrow section of a conveyor device according to one embodiment, and FIG. 11 shows a cross-section of the narrow section. The aforementioned objectives, features, and advantages are described in detail below with reference to the attached drawings, thereby enabling those skilled in the art to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, the same reference numerals are used to indicate the same or similar components. Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merel