Device for removing foreign substance from battery clamp

Description

1 / 18 DEVICE FOR REMOVING FOREIGN SUBSTANCE FROM BATTERY CLAMP FIELD OF TECHNIQUE

[0001] This application claims priority and benefit of Korean Patent Application Number 10-2023-0180238, filed with the Korean Intellectual Property Office on December 13, 2023, the entire content of which is incorporated herein by reference.

[0002] The present invention relates to an apparatus for removing foreign matter from a battery clamp and, more specifically, to an apparatus for removing foreign matter from a battery clamp that carries a battery using magnetic drives. BACKGROUND OF THE TECHNIQUE

[0003] Secondary batteries, capable of being recharged and reused, can be used as a power source for small devices such as mobile phones, tablet PCs and vacuum cleaners, and also used as a power source for medium and large devices such as automobiles, and an energy storage system (ESS) for smart grids.

[0004] Secondary batteries can be applied to a system in the form of an array, such as a battery module in which a plurality of battery cells are connected in series and parallel, or a battery rack in which battery modules are connected in series and parallel, according to the system requirements. For medium and large-sized devices, a high-capacity battery system with multiple battery modules connected in parallel can be applied to meet the required capacity of the device.

[0005] Secondary batteries can be classified into canister-type batteries, in which an electrode array is constructed within a cylindrical metal container, and bag-type batteries, in which the electrode array is constructed within a case-type container. Petition 870250086701, dated 09 / 25 / 2025, page 8 / 46 2 / 18 bag. In general, cylindrical canister-type batteries are known for having relatively large capacities and high structural stability.

[0006] A cylindrical battery cell is manufactured by housing an electrode assembly that has a coiled structure in a cylindrical container, injecting electrolyte into the container, and attaching the cap assembly, which has electrode terminals formed in it, to an open top of the container. A positive terminal in a protruding form may be formed in a central upper area of ​​the cap assembly, and a negative terminal may be formed elsewhere in the metal container. The cylindrical battery cell may be sealed through a crimping process after the cap assembly is attached to the open top of the container.

[0007] In the battery cell manufacturing process, a transfer device that transfers a plurality of battery cells at once can be used to shorten the process time. Such a transfer device can be used to proceed to another process step once a specific process step is completed.

[0008] In general, a magnetic cell grip is used to transport battery cells, securing the battery cells using magnetic units and then transporting them. In the case of such a battery grip, metallic foreign matter can be adsorbed to the magnetic units due to the magnetic force. Here, the metallic foreign matter adsorbed to the magnetic units can cause damage to the battery cells, or a fixed position of a battery cell can become misaligned due to the metallic foreign matter, resulting in a defective battery.

[0009] Therefore, in order to solve this problem, an appropriate foreign matter removal technology is needed to remove Petition 870250086701, dated 09 / 25 / 2025, page 9 / 46 3 / 18 strange matter from a battery clamp that transports batteries using magnetic drives. DETAILED DESCRIPTION OF THE INVENTION TECHNICAL PROBLEM

[0010] To avoid one or more problems of the related technique, embodiments of the present invention provide an apparatus for removing foreign matter from a battery clamp which carries a battery using magnetic units. TECHNICAL SOLUTION

[0011] In order to achieve the objective of the present invention, a foreign matter removal apparatus is an apparatus for removing foreign matter from a battery clamp which carries a battery using a plurality of magnetic units, wherein the foreign matter removal apparatus includes a body part disposed under the battery clamp and connected to an air supply device and an air suction device.

[0012] Here, the body part may include a plurality of inlet slots formed with a space into which a portion of each of the magnetic units is introduced; an air spray unit that sprays air supplied by the air supply device onto the magnetic units; and an air discharge path that draws in air and foreign matter exiting the magnetic units and discharges the air and foreign matter into the air suction device.

[0013] The input slot may have a larger diameter than the diameter of the magnetic unit.

[0014] The air spray unit can be supplied in each of the inlet slots.

[0015] Here, the air spray unit can spray air into Petition 870250086701, dated 09 / 25 / 2025, p. 10 / 46 4 / 18 direction to one end of the magnetic drive when the end of the magnetic drive is inserted into the input slot.

[0016] The air spray unit can be placed under each inlet slot. Here, the air spray unit can spray air upwards when one end of the magnetic unit is inserted into the inlet slot.

[0017] The air spray units, which are provided in each of the inlet slots, can receive air individually through different air supply tubes from the air supply device.

[0018] Each of the inlet slots may have at least one air intake hole formed in an inner wall of the inlet slot. Here, the air discharge path may be connected to the air intake holes of each of the inlet slots.

[0019] The air discharge path can discharge the aspirated air from the air intake hole to the air suction device through at least one air discharge port formed in a certain area of ​​the body part.

[0020] The air discharge path may include a flat portion that communicates with the air intake holes of each of the intake slots and is formed in a direction in which the air intake holes are arranged; and an inclined portion, which is formed by extending from the flat portion, gradually inclining towards the air discharge port and communicating with the air discharge port.

[0021] An air discharge port may be provided at each of the two ends of the body part.

[0022] The body part can be formed by laminating and combining a top plate and a bottom plate. Here, multiple inlet slots can be formed in the top plate, and the air spray unit is provided in the bottom plate and is arranged under each slot. Petition 870250086701, dated 09 / 25 / 2025, p. 11 / 46 5 / 18 down payment.

[0023] The foreign matter removal apparatus may also include a lifting unit that supports the body part and raises the body part towards the battery gripper. ADVANTAGEOUS EFFECTS OF THE INVENTION

[0024] According to embodiments of the present invention, foreign matter adsorbed on each of the magnetic units of a battery clamp can be effectively removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a block diagram of a foreign matter removal system according to embodiments of the present invention.

[0026] Figure 2 is a front view of a foreign matter removal apparatus according to embodiments of the present invention.

[0027] Figure 3 is a front view of a foreign matter removal apparatus in an operating mode according to embodiments of the present invention.

[0028] Figure 4 is a plan view of a top plate of a body part according to embodiments of the present invention.

[0029] Figure 5 is a plan view of a lower plate of a body part according to embodiments of the present invention.

[0030] Figure 6 is a perspective view showing the underside of the lower plate of the body part, according to embodiments of the present invention.

[0031] Figure 7 is a front view of area A in Figure 6.

[0032] Figure 8 is a perspective view of a body part in which an upper plate and a lower plate are combined, according to embodiments of the present invention.

[0033] Figure 9 shows the airflow in the foreign matter removal apparatus, according to the embodiments of the present invention. Petition 870250086701, dated 09 / 25 / 2025, p. 12 / 46 6 / 18 DESCRIPTION OF SYMBOLS / REFERENCE NUMBERS

[0034] 100: battery clamp

[0035] 200: foreign matter removal apparatus

[0036] 300: air supply device

[0037] 400: air intake device BEST WAYS TO IMPLEMENT THE INVENTION

[0038] The present invention can be modified in various ways and have various embodiments, and specific embodiments thereof are shown by way of example in the drawings and will be described below in detail. It should be understood, however, that there is no intention to limit the present invention to the specific embodiments, but, on the contrary, the present invention should cover all modifications, equivalents and alternatives that fall within the spirit and technical scope of the present invention. Equal reference numbers refer to identical elements throughout the description of the figures.

[0039] It will be understood that, although terms such as first, second, A, B and the like may be used herein to describe various elements, these elements shall not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be called a second element and, similarly, a second element may be called a first element, without departing from the scope of the present invention. As used herein, the term and / or includes combinations of a plurality of associated listed items or any one of the plurality of associated listed items.

[0040] It will be understood that when an element is referred to as being coupled or connected to another element, it may be directly coupled or connected to the other element, or an intervening element may be present. In contrast, when an element is referred to as being directly coupled or directly Petition 870250086701, dated 09 / 25 / 2025, p. 13 / 46 7 / 18 connected to another element, there is no intervening element present.

[0041] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. As used herein, the singular forms a, an and the are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms comprises, including, includes, including and / or having, when used herein, specify the presence of declared features, wholes, steps, operations, constitutional elements, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, constitutional elements, components and / or combinations thereof.

[0042] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meanings commonly understood by one skilled in the art to which the present invention pertains. It shall further be understood that terms such as those defined in commonly used dictionaries shall be interpreted as having meanings that are consistent with their meanings in the context of the relevant art and shall not be interpreted in an idealized or overly formal sense, unless expressly so defined herein.

[0043] Figure 1 is a block diagram of a foreign matter removal system according to embodiments of the present invention.

[0044] The foreign matter removal system according to embodiments of the present invention is a system for removing foreign matter adsorbed in a certain area of ​​a battery clamp 100 and may include a foreign matter removal apparatus 200, Petition 870250086701, dated 09 / 25 / 2025, page 14 / 46 8 / 18 an air supply device 300 and an air intake device 400, as shown in Figure 1.

[0045] A battery clamp 100 is a device that may include a plurality of magnetic units, securing batteries and transporting them to a specific location using the magnetic force of each magnetic unit. Here, the magnetic unit may include at least one permanent magnet and one electric magnet.

[0046] The foreign matter removal device 200 can be placed under the battery clamp 100 and can communicate with the air supply device 300 and the air intake device 400. Here, the foreign matter removal device 200 can spray the air supplied by the air supply device 300 onto the magnetic units of the battery clamp 100 using one or more air spray units. In addition, the foreign matter removal device 200 can aspirate the injected air and the foreign matter that flies from the magnetic units due to the injected air and discharge the air and foreign matter to the air intake device 400 through an internally formed air discharge path.

[0047] The air supply device 300 is a device that can draw in outside air and supply the drawn air to the foreign matter removal apparatus 200. Here, the air supply device 300 can draw in outside air using an air pump and supply air to the air spray unit of the foreign matter removal apparatus 200 using one or more air supply tubes.

[0048] The air intake device 400 is a device that can aspirate air and foreign matter discharged from the foreign matter removal apparatus 200. Here, the air intake device 400 can aspirate air and foreign matter discharged from the foreign matter removal apparatus 200 using an air pump and one or more air discharge tubes. Petition 870250086701, dated 09 / 25 / 2025, p. 15 / 46 9 / 18

[0049] A method of removing foreign matter performed by the foreign matter removal system may proceed as follows.

[0050] The battery gripper 100 may be transferred to an upper part above the foreign matter removal apparatus 200 by a transfer device. Subsequently, the battery gripper 100 may be lowered or the foreign matter removal apparatus 200 may be raised by a lifting device, so that the relative gap between the battery gripper 100 and the foreign matter removal apparatus 200 may be gradually narrowed. Then, when the magnetic units of the battery gripper 100 and the air spray unit of the foreign matter removal apparatus 200 reach a predetermined gap, the lowering of the battery gripper 100 or the raising of the foreign matter removal apparatus 200 may be stopped.Here, the foreign matter removal device 200 can spray air onto a specific area of ​​the magnetic units using an air spray unit, aspirate the sprayed air and the projected foreign matter, and discharge the sprayed air and the projected foreign matter to the air intake device 400 through the air discharge path. Subsequently, the battery gripper 100 can be raised or the foreign matter removal device 200 can be lowered by the lifting device, so that the foreign matter removal process for the corresponding battery gripper 100 can be completed.

[0051] Figure 2 is a front view of an apparatus for removing foreign matter according to embodiments of the present invention.

[0052] The foreign matter removal apparatus 200 may be disposed below the battery clamp 100 and may include a body part 210 and a lifting unit 220. Petition 870250086701, dated 09 / 25 / 2025, page 16 / 46 10 / 18

[0053] The battery clamp 100 may include a plurality of magnetic units 110. Here, a magnetic member that includes at least one permanent magnet and one electric magnet may be disposed at the lower end of each magnetic unit 110.

[0054] In the present invention, the shape of the magnetic unit 110 is not limited to a specific shape. However, for a clear explanation of the embodiments of the present invention, a cylindrical magnetic unit 110 is described as an example.

[0055] The lifting unit 220 can be a device that supports and lifts the body part 210. Here, the lifting unit 220 can lift the body part 210 to a predetermined position towards the battery gripper 100 when the foreign matter removal apparatus 200 is switched to an operating mode and can lower the body part 210 to its original position when a foreign matter removal process is completed. The lifting unit 220 may include an actuator for lifting the body part 210.

[0056] The body part 210 may include a plurality of entry slots 211 in which a space is formed within which a portion of each of the magnetic units 110 may be introduced. Here, each of the entry slots 211 may be formed on the upper surface of the body part 210 and may be formed in a position corresponding to the position of the magnetic unit 110.

[0057] The entry slots 211 can be formed with a diameter larger than the diameter of the magnetic unit 110. In other words, each of the entry slots 211 can be formed with a diameter larger than the cross-sectional diameter of the circular magnetic unit 110, so that one end of the magnetic unit 110 can be inserted.

[0058] Body part 210 may include one or more units of Petition 870250086701, dated 09 / 25 / 2025, page 17 / 46 11 / 18 air spraying units that spray air supplied by air supply device 300 onto magnetic units 110. Here, the air spraying unit can receive air through an air supply tube 310 from air supply device 300 and spray air onto a corresponding magnetic unit 110.

[0059] The air spray unit can be provided in each of the inlet slots 211. Here, the air spray unit can be arranged under each of the inlet slots 211 and configured to spray air towards the upper side.

[0060] The air spray units provided in each of the inlet slots 211 can individually receive air from the air supply device 300 through different air supply tubes 310. For example, if 16 inlet slots 211 are formed in the body part 210, air spray units can be provided on the lower surface of each of the inlet slots 211. Here, each of the 16 air spray units can be individually connected to 16 air supply tubes, receive air from the air supply device 300 and spray air to the corresponding magnetic units 110.

[0061] An air discharge path may be formed within body part 210 to draw in air injected by the air spray unit and foreign matter exiting the magnetic units 110 and discharge the injected air and foreign matter into the air intake device 400. Here, the air and foreign matter drawn into the air discharge path may be discharged into an air intake device 400 via an air discharge tube 410.

[0062] Figure 3 is a front view of a foreign matter removal apparatus in an operating mode according to the embodiments of the present invention.

[0063] When the foreign matter removal apparatus 200 is Petition 870250086701, dated 09 / 25 / 2025, p. 18 / 46 12 / 18 switched to an operating mode while the battery gripper 100 is positioned above the foreign matter removal device 200, the lifting unit 220 can lift the body part 210 towards the battery gripper 100. Consequently, the relative gap between the lower end of the magnetic unit 110 and the upper surface of the body part 210 can gradually narrow.

[0064] When the lower end of each magnetic unit 110 is inserted into each corresponding entry slot 211 and subsequently, when the bottom surface of the entry slot 211 and the bottom surface of the magnetic unit 110 are positioned with a predetermined gap, the lifting of the body part 210 by the lifting unit 220 can stop.

[0065] The air spray units arranged in each of the inlet slots 211 can receive air from the air supply device 300 through different air supply tubes 310 and spray air towards the end of the corresponding magnetic unit 110. Here, the air spray units are arranged under each of the inlet slots 211 and can spray air upwards.

[0066] The air injected by the air spray units and the foreign matter emitted by the magnetic units are drawn in through the air discharge path formed within the body part 210, and the drawn air and foreign matter can be discharged to the air intake device 400 through the air discharge tube 410.

[0067] Each of the inlet slots 211 may have one or more air suction holes formed in the inner wall. Here, the air discharge path is connected to the air suction holes of each of the inlet slots and may aspirate air and foreign matter. The air discharge path is connected to one or more air discharge ports 212 formed in a specific area of ​​the body part, and the ports of Petition 870250086701, dated 09 / 25 / 2025, p. 19 / 46 Air discharge tubes 13 / 18 212 are connected to the air discharge tube 410, so that the aspirated air and foreign matter can be discharged to the air intake device 400.

[0068] Air discharge ports 212 may be provided at each of the two ends of the body part 210. Here, each of the air discharge ports 212 may have its upper side closed and its lower side connected to the air discharge tube 410.

[0069] Figure 4 is a plan view of an upper plate of a body part, according to embodiments of the present invention, and Figure 5 is a plan view of a lower plate of a body part, according to embodiments of the present invention.

[0070] The body part 210, according to embodiments of the present invention, can be formed by laminating and combining an upper plate 210A and a lower plate 210B. Herein, the upper plate 210A and the lower plate 210B can be connected by screwing together using a plurality of screws, or laminated and bonded together using an adhesive, to form the body part 210.

[0071] Referring to Figure 4, a plurality of entry slots 211 can be formed on the upper surface of the top plate 210A. Here, each of the entry slots 211 can be formed in a position that corresponds to the position of the magnetic units 110.

[0072] The 211 entry slots formed in the top plate 210A can be formed by penetrating the upper plate 210A, and air spray units 216 (see Figure 5) located on the lower plate 210B can be arranged under the inlet slots 211.

[0073] An air discharge path 213 for drawing in air injected by the air spray units 216 and foreign matter expelled by the magnetic units may be formed within the top plate 210A. Petition 870250086701, dated 09 / 25 / 2025, page 20 / 46 14 / 18

[0074] One or more air intake holes 214 may be formed in the inner wall of each of the inlet slots 211. Here, the air discharge path 213 may communicate with the air intake holes 214 of each of the inlet slots 211 to draw in air and foreign matter.

[0075] The air discharge path 213 can be connected to the air discharge ports 212 formed at each of the two ends of the top plate 210A, and the air discharge ports 212 can be connected to an air discharge tube 410, so that the aspirated air and foreign matter can be discharged to the air intake device 400.

[0076] The air discharge path 213 may include a flat portion 213-1 formed along the direction in which the air suction holes 214 are arranged and an inclined portion 213-2 which is formed extending from the flat portion 213-1, gradually inclining towards the air discharge port 212 and communicating with the air discharge port 212. Here, air and foreign matter can be discharged smoothly without accumulation of foreign matter due to the inclined portion 213-2 of the air discharge path 213.

[0077] Referring to Figure 5, the lower plate 210B can be formed with a plurality of mounting slots 215. Here, each of the mounting slots 215 can be formed in a position that corresponds to the entry slots 211 of the upper plate 210A.

[0078] The air spray unit 216 can be positioned in the mounting groove 215. Here, each of the air spray units 216 can be hermetically installed and secured in a corresponding mounting groove 215.

[0079] The air spray unit 216 may include a plurality of N spray nozzles that spray the supplied air through the air supply tube 310. Here, the N spray nozzles Petition 870250086701, dated 09 / 25 / 2025, p. 21 / 46 15 / 18 can be arranged to be dispersed along the circumferential direction of the air spray unit 216.

[0080] The lower part of the air spray unit 216 can be hermetically connected to the air supply pipe 310 by means of a fastening member 320, and the air spray unit 216 can disperse the air supplied by the air supply pipe 310 through the spray nozzles and spray it upwards.

[0081] Figure 6 is a perspective view showing the underside of the lower plate of the body part according to embodiments of the present invention and Figure 7 is a front view of area A in Figure 6.

[0082] Referring to Figure 6, each of the air spray units 216 provided on the lower plate 210B can be connected to an air supply tube 310 via a fixing member 320 and can individually receive air from an air supply device 300.

[0083] The 310 air supply tube may be made of a flexible material and arranged so as not to overlap other 310 air supply tubes.

[0084] Referring to Figure 7, the lower plate 210B may have a mounting groove 215 formed therein. Here, the air spray unit 216 may be hermetically installed and secured in the mounting groove 215.

[0085] The lower part of the air spray unit 216 can be hermetically connected to the air supply pipe 310 through the fixing member 320 and the air spray unit 216 can disperse the air supplied by the air supply pipe 310 through the spray nozzles N and spray it upwards.

[0086] Figure 8 is a perspective view of a body part in which an upper plate and a lower plate are combined. Petition 870250086701, dated 09 / 25 / 2025, p. 22 / 46 16 / 18 in accordance with the embodiments of the present invention.

[0087] Body part 210 can be formed by laminating and combining an upper plate 210A and a lower plate 210B. Here, the upper plate 210A and the lower plate 210B can be connected by screwing together using a plurality of screws or laminated and bonded together using an adhesive to form body part 210.

[0088] A plurality of inlet slots 211 can be formed in the upper plate 210A and an air spray unit 216 fixed to the lower plate 210B can be arranged under each inlet slot 211.

[0089] The air spray unit 216 may include a plurality of N spray nozzles that spray the supplied air through the air supply tube 310. Here, the N spray nozzles may spray the air supplied by the air supply tube 310 towards the upper side.

[0090] An air discharge path 213 may be formed within the top plate 210A to draw in air injected by the air spray units 216 and foreign matter exiting the magnetic units.

[0091] In each of the inlet slots 211, one or more air intake holes 214 may be formed in the inner wall. Here, the air discharge path 213 may be connected to the air intake holes 214 of each of the inlet slots 211 to draw in air and foreign matter.

[0092] Figure 9 shows the airflow in the foreign matter removal apparatus according to the embodiments of the present invention.

[0093] After the foreign matter removal apparatus 200 is switched to operating mode, when the lower ends of the magnetic units 110 are introduced into the corresponding inlet slots 211, the air spray units 216 can Petition 870250086701, dated 09 / 25 / 2025, p. 23 / 46 17 / 18 receive air from the air supply device 300 through different air supply tubes 310. Here, each of the air spray units 216 can spray air towards the end of the corresponding magnetic unit 110 through a plurality of spray nozzles.

[0094] The injected air and projected foreign matter can be drawn into the air intake holes 214 formed in the inner wall of each of the intake slots 211 and guided to the air discharge path 213 formed within the upper plate 210A. Subsequently, the air and foreign matter that were introduced can be discharged to the air intake device 400 through the air discharge ports 212 and the air discharge tube 410 formed at each end of the body part 210.

[0095] Here, air and foreign matter can be prevented from being drawn into a suction hole 214 of another inlet slot 211 by the inner walls of the inlet slots 211. Furthermore, foreign matter can be discharged smoothly, without being accumulated, by the inclined portion 213-2 of the air discharge path 213.

[0096] Although some aspects of the invention have been described in the context of the apparatus, these may also represent a description according to a corresponding method, wherein a block or apparatus corresponds to a method step or feature of a method step. Similarly, aspects described in the context of a method may also represent a feature of a corresponding block or item or of a corresponding apparatus. Some or all of the method steps may be performed by (or using) a hardware device, such as, for example, a microprocessor, a programmable computer, or an electronic circuit. In some embodiments, one or more of the most important method steps may be performed by such a device. Petition 870250086701, dated 09 / 25 / 2025, p. 24 / 46 18 / 18

[0097] In the above, the present invention has been described with reference to the exemplary embodiment of the present invention, but those skilled in the art may appreciate that the present invention can be variously corrected and altered within the range without departing from the spirit and scope of the present invention described in the appended claims. Petition 870250086701, dated 09 / 25 / 2025, p. 25 / 46

Claims

1 / 3 CLAIMS 1. Apparatus for removing foreign matter from a battery clamp which carries a battery using a plurality of magnetic units, characterized in that it comprises: a body part disposed under the battery clamp and connected to an air supply device and an air suction device, wherein the body part includes: a plurality of inlet slots formed with a space into which a portion of each of the magnetic units is introduced; an air spray unit that sprays the air supplied by the air supply device onto the magnetic units; and an air discharge path that draws in the air and foreign matter exiting the magnetic units and discharges the air and foreign matter into the air suction device.

2. Apparatus according to claim 1, characterized in that the inlet slot has a diameter larger than the diameter of the magnetic unit.

3. Apparatus according to claim 1, characterized in that the air spray unit is provided in each of the inlet slots.

4. Apparatus according to claim 3, characterized in that the air spray unit sprays air towards one end of the magnetic unit when the end of the magnetic unit is inserted into the inlet slot.

5. Apparatus according to claim 3, characterized in that the air spray unit is disposed under each inlet slot and sprays air upwards when one end of the magnetic unit is inserted into the inlet slot. Petition 870250086701, dated 09 / 25 / 2025, page 26 / 46 2 / 3 6. Apparatus according to claim 3, characterized in that the air spray units, which are provided in each of the inlet slots, individually receive air through different air supply tubes from the air supply device.

7. Apparatus according to claim 1, characterized in that each of the inlet slots has at least one air intake hole formed in an inner wall of the inlet slot, and in that the air discharge path is connected to the air intake holes of each of the inlet slots.

8. Apparatus according to claim 7, characterized in that the air discharge path discharges the aspirated air from the air intake hole to the air suction device through at least one air discharge port formed in a certain area of ​​the body part.

9. Apparatus according to claim 8, characterized in that the air discharge path includes: a flat portion that communicates with the air intake holes of each of the inlet slots and is formed in a direction in which the air intake holes are arranged; and an inclined portion, which is formed by extending from the flat portion, gradually inclining towards the air discharge port and communicating with the air discharge port.

10. Apparatus according to claim 8, characterized in that the air discharge port is provided at each of both ends of the body part.

11. Apparatus according to claim 1, characterized in that the body part is formed by laminating and combining an upper plate and a lower plate, Petition 870250086701, dated 09 / 25 / 2025, page 27 / 46 3 / 3 the plurality of inlet slots is formed in the upper plate and the air spray unit is provided in the lower plate and is arranged under each inlet slot.

12. Apparatus according to claim 1, characterized in that it further comprises a lifting unit that supports the body part and raises the body part towards the battery gripper. Petition 870250086701, dated 09 / 25 / 2025, p. 28 / 46

Images