Battery module transport device

Abstract

A battery module transport device is provided. A battery module transport device according to one aspect of this specification is a battery module transport device that is detachably mounted in a first horizontal hole and a second vertical hole provided on each side of a battery module and transports the battery module, and includes a main body disposed on the side of the battery module; an extension extending downward from the main body along the side of the battery module; a first fixing part including a projection protruding from the extension toward the side of the battery module so as to be inserted into the first hole; and a second fixing part protruding downward from the main body and secured in the second hole and configured to be movable up and down.

Description

Technical Field

[0001] The present invention relates to a battery module carrier. More specifically, the present invention relates to a battery module carrier that is simply and firmly attached to a battery module and enables an operator to easily carry the battery module.

Background Art

[0002] A lithium secondary battery is a battery that stores and produces electrical energy through the insertion (intercalation) and desorption (deintercalation) of lithium ions at the positive and negative electrodes.

[0003] In recent years, lithium secondary batteries are widely used for driving and energy storage not only in small devices such as portable electronic devices but also in medium and large devices such as electric vehicles and energy storage systems (ESS).

[0004] As one form of a power device using such a lithium secondary battery, a battery module is formed by storing a number of battery cells together inside a module case in an electrically connected state, and a battery pack is formed by storing a number of battery modules together inside a battery pack housing in an electrically connected state. This form is widely used.

[0005] During the manufacturing process of a battery, the battery module is frequently carried. For example, when arranging a battery module inside a battery pack housing during the assembly process of a battery pack, or when arranging a battery module on an attaching device for attaching an insulating / flame-retardant sheet (e.g., a mica sheet) to the outer peripheral surface of the battery module, the battery module can be carried.

[0006] Conventionally, as a method for carrying a battery module, a method of carrying the battery module by adsorbing it with a rubber adsorber and moving it, or gripping the battery module using a clamp has been used.

[0007] However, when moving battery modules using rubber suction cups, irregularities such as resin checking holes formed on the outer surface of the battery modules prevented the rubber suction cups from properly adhering to the modules, leading to problems with the battery modules falling during transport. Similarly, when moving battery modules using clamps, the weight of the battery modules could cause the clamps to release, resulting in the modules falling. Such falls of battery modules caused damage to the modules and injuries to workers.

[0008] Furthermore, when transporting battery modules using clamps, the process of attaching and detaching the clamps to the battery modules was cumbersome, leading to a decrease in work efficiency. [Overview of the initiative] [Problems that the invention aims to solve]

[0009] The problem that this specification aims to solve is to provide a battery module transport device that can firmly grip a battery module to prevent it from falling, thereby preventing damage to the battery module and injury to the worker, and which has been devised to solve at least some of the problems of the prior art.

[0010] Furthermore, the objective is to provide a battery module transport device that can improve work efficiency through a simple fastening structure with the battery module. [Means for solving the problem]

[0011] A battery module transport device according to one aspect of this specification for achieving the above objectives is a battery module transport device that is detachably attached to a first horizontal hole and a second vertical hole provided on each side of a battery module, and transports the battery module, and includes a first fixing part that includes a main body disposed on the side of the battery module, an extension extending downward from the main body along the side of the battery module, and a projection protruding from the extension toward the side of the battery module so as to be inserted into the first hole, and a second fixing part that protrudes downward from the main body and is secured to the second hole, wherein the second fixing part may be configured to be movable up and down.

[0012] This allows the battery module to be firmly gripped, preventing it from falling and thus preventing damage to the battery module and injury to the worker.

[0013] Furthermore, the simple fastening structure to the battery module improves work efficiency.

[0014] Furthermore, the main body includes a base portion to which a first fixing portion is connected, and which is fixed in its relative position to the battery module when the battery module transport device is attached to the battery module; and a movable portion located below the base portion and movable up and down relative to the base portion, to which a second fixing portion is connected at the bottom. The second fixing portion can be inserted into a second hole when the movable portion is lowered and disengaged from the second hole when the movable portion is raised.

[0015] Furthermore, the movable part can receive a restoring force in the downward direction so that the second fixed part, which is in a raised position, descends and is inserted into the second hole.

[0016] Furthermore, the main body may further include a shaft that protrudes from the upper part of the movable part and passes through the base part, a stopper that is connected to the shaft from the upper part of the base part and limits the maximum lowering position of the movable part, and an elastic member disposed between the base part and the movable part.

[0017] Furthermore, it includes an outer handle connected to the upper part of the base and an inner handle connected to the upper part of the stopper, and the movable part can be raised when the inner handle is pulled upward relative to the outer handle.

[0018] Furthermore, the distance between the base and the moving part when the battery module transport device is not attached to a battery module and the moving part is at its lowest point may be greater than the distance between the base and the moving part when the battery module transport device is attached to a battery module.

[0019] Furthermore, the extension may include a first portion that is provided in the shape of a plate.

[0020] Furthermore, the extension includes a plurality of second parts extending downward from the first part, and the protrusions may protrude toward the battery module from the lower region of each of the plurality of second parts.

[0021] Furthermore, the extension may be adjustable in length vertically.

[0022] Furthermore, the thickness of the protruding portion may decrease in the vertical direction as it approaches the battery module.

[0023] Furthermore, the second fixing portion includes a spacer and an insertion portion that protrudes downward from the spacer and is inserted into a second hole in the battery module, and the diameter of the spacer may be larger than the diameter of the second hole.

[0024] Furthermore, the vertical length of the spacer may be greater than the distance between the top surface of the battery module and the top edge of the second hole. [Effects of the Invention]

[0025] The battery module transport device according to this specification can firmly grip the battery module to prevent it from falling, thereby preventing damage to the battery module and injury to the worker.

[0026] In addition, workability can be improved through a simple fastening structure with the battery module.

Brief Description of the Drawings

[0027] [Figure 1] It is a perspective view showing the state in which the battery module carrier device according to an embodiment of the present specification is fastened to the battery module. [Figure 2] It is a perspective view showing a part of the battery module and the battery module carrier device according to an embodiment of the present specification. [Figure 3] It is a perspective view of the battery module carrier device according to an embodiment of the present specification viewed from another angle. [Figure 4] It is an exploded perspective view of the battery module carrier device according to an embodiment of the present specification. [Figure 5] It is a perspective view showing the state when the second handle of the battery module carrier device according to an embodiment of the present specification is pulled.

Modes for Carrying Out the Invention

[0028] Prior to the detailed description of the present invention, terms and words used in this specification and the claims should not be construed as being limited to their ordinary or dictionary meanings. Based on the principle that the inventor can appropriately define the terms in order to explain his invention in the best way, they should be construed as meanings and concepts conforming to the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it must be understood that there may be various equivalents and modifications that can replace them at the time of this application.

[0029] The same reference numerals or symbols in the figures attached to this specification indicate parts or components that perform substantially the same function. For the sake of explanation and understanding, the same reference numerals or symbols may be used to describe different embodiments. That is, even if components with the same reference numeral are illustrated in multiple figures, not all of the figures represent a single embodiment.

[0030] In the following descriptions, singular expressions include plural expressions unless the context clearly indicates otherwise. Terms such as “contains” or “constitutes” are intended to specify the presence of features, figures, stages, operations, components, parts, or combinations thereof described in the specification, and should be understood not to preemptively exclude the presence or possibility of adding one or more other features, figures, stages, operations, components, parts, or combinations thereof.

[0031] Furthermore, in the following explanation, terms such as "top," "upper," "lower," "bottom," "side," "front," and "rear" are used based on the direction shown in the diagram, and it should be made clear beforehand that they may be expressed differently if the direction of the object changes.

[0032] Furthermore, within this specification and the claims, terms including ordinal numbers, such as "first," "second," etc., may be used to distinguish between components. Such ordinal numbers are used to distinguish identical or similar components from one another, and the use of such ordinal numbers should not restrict the meaning of the terms. For example, the order of use or arrangement of components combined with such ordinal numbers should not be restricted by the numbers. If necessary, the ordinal numbers may be substituted for each other.

[0033] Embodiments of the present invention will be described below with reference to the attached figures. However, the concept of the present invention is not limited to the embodiments presented. For example, a person of ordinary skill who understands the concept of the present invention should be able to propose other embodiments that fall within the scope of the present invention through the addition, modification, or deletion of components, and these too can be said to fall within the scope of the present invention. The shapes and sizes of the elements in the figures may be exaggerated for clearer explanation.

[0034] Figure 1 is a perspective view illustrating a battery module transport device according to one embodiment of this specification fastened to a battery module. Figure 2 is a perspective view illustrating a part of the battery module and the battery module transport device according to one embodiment of this specification. Figure 3 is a perspective view of the battery module transport device according to one embodiment of this specification from another angle. Figure 4 is an exploded perspective view of the battery module transport device according to one embodiment of this specification. Figure 5 is a perspective view illustrating the state when the second handle of the battery module transport device according to one embodiment of this specification is pulled.

[0035] In the following description, we will use as an example the case in which the battery module transport device 100 according to one embodiment of this specification grasps and transports a battery module B in an inverted state. However, we are not limited to this, and the battery module transport device 100 according to one embodiment of this specification can also grasp a battery module B in an upright state.

[0036] In the following, regardless of whether the battery module transport device 100 is attached to a battery module B that is inverted or not, the lower part of the battery module B will be referred to as the lower part, and the upper part of the battery module B will be referred to as the upper part, with reference to Figure 1.

[0037] Referring to Figures 1 and 2, a first hole H1 may be formed in the battery module B. The first hole H1 may be formed horizontally on both sides of the battery module B. Two first holes H1 may be formed side by side horizontally on both sides of the battery module B. The first hole H1 may be called a manipulator hole.

[0038] A second hole H2 may be formed in the battery module B. The second hole H2 may be formed vertically on both sides of the battery module B. Two second holes H2 may be formed in the edge regions on both sides of the side of the battery module B. The second hole H2 may be formed in the central height region of the battery module B. The second hole H2 may be formed penetrating vertically. The second hole H2 may be called a mounting hole.

[0039] Referring to Figures 1 and 2, the battery module transport device 100 can be detachably attached to the first hole H1 and the second hole H2, respectively, provided on both sides of the battery module B. That is, in order to transport one battery module B, two battery module transport devices 100 are attached to both sides of the battery module B, and the worker can transport the battery module B by grasping the two battery module transport devices 100 attached to the battery module B.

[0040] Referring to Figures 1 to 5, the battery module transport device 100 may include a main body 110. The main body 110 may be positioned on the side of the battery module B.

[0041] The main body 110 may include a base portion 111. The base portion 111 may be a part whose relative position to the battery module B is fixed when the battery module transport device 100 is mounted on the battery module B. The base portion 111 may be in the shape of a horizontally extended bar or a horizontally extended plate. A first fixing portion 120 may be connected to the base portion 111.

[0042] The main body 110 may include a movable part 112. The movable part 112 may be located below the base part 111. The movable part 112 may be separated from the base part 111 by a certain distance. When the battery module transport device 100 is mounted on the battery module B, the movable part 112 may be located on the side of the battery module B. A second fixing part 130 may be connected to the lower part of the movable part 112.

[0043] The movable part 112 may be in the shape of a horizontally extended bar or a horizontally extended plate. However, it is not limited to these, and the movable part 112 may be composed of two members arranged horizontally.

[0044] The movable part 112 can move up and down relative to the base part 111. The movable part 112 can be raised when the inner handle 150 is pulled upward relative to the outer handle 140. The movable part 112 can be lowered when the upward pull of the inner handle 150 is released.

[0045] In contrast, the movable part 112 can move vertically using an electric motor. For example, the main body 110 is equipped with an electric motor, and the rotation of the electric motor causes the shaft 113 to move vertically (for example, using a worm gear system), thereby allowing the movable part 112 to move vertically. In this case, the electric motor can be driven by a button provided on the outer handle 140.

[0046] The movable part 112 can receive a downward restoring force so that the second fixed part 130, which is in a raised position, is lowered and inserted into the second hole H2 of the battery module B. Specifically, the movable part 112 can be provided with a downward elastic restoring force by the compression of an elastic member 115 provided between the movable part 112 and the base part 111.

[0047] When the battery module transport device 100 is not mounted on the battery module B, the distance between the base portion 111 and the movable portion 112 when the movable portion 112 is at its lowest point (i.e., when the stopper 114 is in contact with the upper surface of the base portion 111) may be greater than the distance between the base portion 111 and the movable portion 112 when the battery module transport device 100 is mounted on the battery module B. This can be understood as maintaining a certain level of compression of the elastic member 115 positioned between the base portion 111 and the movable portion 112 when the battery module transport device 100 is mounted on the battery module B. As a result, when the battery module transport device 100 is mounted on the battery module B, the movable portion 112 and the second fixed portion 130 connected thereto are continuously subjected to a downward elastic restoring force by the elastic member 115, so that the battery module transport device 100 can be stably mounted on the battery module B.

[0048] Referring to Figures 3 and 4, the main body 110 may include a shaft 113. The shaft 113 protrudes from the upper part of the movable part 112, passes through the base part 111, and can slide relative to the base part 111 while passing through it. Through this structure and behavior, the shaft 113 can guide the vertical movement of the movable part 112.

[0049] The shaft 113 may be provided with at least two shafts 113. The two shafts 113 may be arranged horizontally. When viewed from the side of the battery module B, the shafts 113 may be positioned symmetrically with respect to the central region of the battery module B. By arranging the two shafts 113 horizontally in symmetrical positions, the force applied by the operator to the inner handle 150 and the elastic restoring force by the elastic member 115 can be evenly transmitted to both sides of the moving part 112.

[0050] However, this is not the only option. If, in addition to the shaft 113, a separate member is provided to guide the vertical movement of the movable part 112, or if the shaft 113 is located in the central region of the movable part 112 so that the force applied by the operator to the inner handle and the elastic restoring force by the elastic member 115 can be transmitted to the movable part 112 in a balanced manner, then only one shaft 113 may be provided. Furthermore, a structure in which two or more shafts 113 are provided and arranged horizontally is not ruled out.

[0051] Referring to Figures 1 to 5, the main body 110 may include a stopper 114. The stopper 114 may be positioned on the upper part of the base 111. The stopper 114 may be connected to a shaft 113 that passes through the base 111. The stopper 114 can limit the maximum lowering position of the movable part 112. Specifically, the stopper 114 may catch on the upper surface of the base 111 at the maximum lowering height of the movable part 112, thereby limiting further lowering of the movable part 112.

[0052] The stopper 114 may be a horizontally extended bar shape or a horizontally extended plate shape. However, it is not limited to these, and the stopper 114 may be provided only at positions corresponding to the positions of the through holes in the base portion 111 through which the shaft 113 passes. For example, if there are two shafts 113 and correspondingly two through holes in the base portion 111, there may be two stoppers 114, one for each through hole.

[0053] The main body 110 may include an elastic member 115. The elastic member 115 may be positioned between the base 111 and the movable part 112. The elastic member 115 may be compressed by the upward movement of the movable part 112. The elastic member 115 can provide a downward elastic restoring force to the movable part 112.

[0054] The elastic member 115 may be, for example, a spring, and such an elastic member 115 may be arranged to enclose the shaft 113. This allows the elastic member 115 to be stably positioned between the base portion 111 and the movable portion 112.

[0055] However, the invention is not limited to this, and the shaft 113 may be composed of two members in a telescopic structure, with the elastic member 115 positioned inside the shaft 113. Furthermore, the elastic member 115 may be composed of an elastic material such as rubber.

[0056] The battery module transport device 100 may include a first fixing part 120. The first fixing part 120 may extend from the main body 110, specifically from the base 111. The first fixing part 120 may be the part to which the load of the battery module B is directly transmitted to the battery module transport device 100. The specific structure of the first fixing part 120 is as follows.

[0057] The first fixed portion 120 may include an extension portion 121. The extension portion 121 may extend downward from the main body portion 110 along the side of the battery module B. The extension portion 121 may be positioned outside the movable portion 112 with respect to the battery module B.

[0058] The extension 121 may include a first portion 121a. The upper end of the first portion 121a may be connected to the base portion 111. The first portion 121a may be provided in the shape of a plate. The first portion 121a is the part that transmits the load of the battery module B transmitted from the second portion 121b to the base portion 111. If the first portion 121a is provided in the shape of a plate, the durability of the first fixing portion 120 may be improved, the contact area and bonding area between the first fixing portion 120 and the base portion 111 may be increased, and the bonding force between the base portion 111 and the first fixing portion 120 may be improved, so that the battery module B can be lifted stably.

[0059] The central region of the first portion 121a may be punched out. For example, as shown in Figures 1 to 5, if the second portion 121b protrudes downward from both sides of the lower edge of the first portion 121a, the load of the battery module B transmitted from the second portion 121b can be transmitted to the base portion 111 mainly through the edges on both sides of the first portion 121a. Therefore, by punching out the central region excluding the main load transmission path of the battery module B, the load on the battery module transport device 100 can be reduced, and the work efficiency of the worker can be improved. However, contrary to this, it may not necessarily be necessary for the central region of the first portion 121a to be punched out.

[0060] The extension 121 may include a second portion 121b. The second portion 121b may extend below the first portion 121a. The second portion 121b may preferably be integrated with the first portion 121a to ensure the durability of the extension 121.

[0061] The second portion 121b may extend downward from the lower edge of the first portion 121a at a position corresponding to the first hole H1 of the battery module B. For example, the second portion 121b may split into two and extend downward from the first portion 121a at a position corresponding to the two first holes H1 formed in the battery module B. Through such a structure, a field of view can be secured that allows the worker to see the first holes H1 of the battery module B from between the second portions 121b, so that the projection 122 protruding from the second portion 121b can be easily secured to the first holes H1.

[0062] Unlike the foregoing, the extension 121 may not include the second portion 121b. For example, the first portion 121a, which is provided in a plate shape, may extend downward from the base portion 111 to a position corresponding to the first hole H1 of the battery module B, and the projection 122 may project from such first portion 121a toward the battery module B. In this case, the durability of the extension 121 may be further improved.

[0063] Furthermore, the extension 121 may not include the plate-shaped first portion 121a. For example, if sufficient strength can be ensured for the extension 121, the extension 121 may be divided into two parts and extended downward from the base portion 111. In this case, it is easier to ensure a clear view of the battery module B, and the operator can more easily attach the battery module transport device 100 to the battery module B.

[0064] Unlike those shown in Figures 1 to 5, the extension portion 121 may be adjustable in length vertically. The height of the protruding portion 122 can be adjusted according to the length adjustment of the extension portion 121.

[0065] Specifically, unlike those shown in Figures 1 and 2, if the first hole H1 is not formed in the battery module B, the battery module transport device 100 can be attached to the battery module B by having the protrusion 122 catch on a step formed on the side of the battery module B or the lower end of the side of the battery module B. In this case, the length of the extension 121 needs to be adjusted so that the protrusion 122 is positioned at a height corresponding to the step formed on the side of the battery module B or the lower end of the side of the battery module B.

[0066] Furthermore, unlike the examples described herein, when the battery module transport device 100 is attached to the battery module B in a state where the battery module B is not inverted (i.e., unlike those shown in Figures 1 and 2, the first hole H1 is formed in the upper region of the side of the battery module B), the length of the extension 121 needs to be adjusted so that the protrusion 122 is positioned at a height corresponding to the first hole H1.

[0067] The first fixed portion 120 may include a protruding portion 122. The protruding portion 122 may project from the extension portion 121 toward the side of the battery module B. Specifically, the protruding portion 122 may project toward the battery module B in the lower region of the second portion 121b. The protruding portion 122 may be inserted into the first hole H1 of the battery module B.

[0068] The upper surface of the projection 122 may be horizontal. Since the projection 122 is the part that primarily supports the load of the battery module B, it is sometimes preferable for the upper surface of the projection 122 to be formed horizontally in order to stably lift the battery module B. However, if the inner upper surface of the first hole H1 of the battery module B is not horizontal but inclined or has a geometric shape, the upper surface of the projection 122 may also be inclined or have a geometric shape corresponding to the inner upper surface of the first hole H1.

[0069] The thickness of the protrusion 122 may decrease in the vertical direction as it approaches the battery module B. This allows the worker to easily secure the protrusion 122 to the first hole H1 of the battery module B during the process of attaching the battery module transport device 100 to the battery module B.

[0070] The battery module transport device 100 may include a second fixing portion 130. The second fixing portion 130 may protrude downward from the main body portion 110. Specifically, the second fixing portion 130 may protrude downward from the lower surface of the movable portion 112. The second fixing portion 130 may be secured to the second hole H2 of the battery module B.

[0071] The second fixing portion 130 may include a spacer 131. The spacer 131 may be a portion that temporarily protrudes downward from the lower surface of the movable portion 112. The diameter of the spacer 131 may be larger than the diameter of the second hole H2 of the battery module B. The lower end surface of the spacer 131 can be fixed to the upper end surface of the second hole H2 when the insertion portion 132 is inserted into the second hole H2 of the battery module B. The vertical length of the spacer 131 may be larger than the distance between the upper surface of the battery module B and the upper end of the second hole H2. This prevents the lower surface of the movable portion 112 from directly contacting the upper surface of the battery module B when the insertion portion 132 is inserted into the second hole H2 of the battery module B, thereby preventing the housing of the battery module B from being deformed or damaged by the movable portion 112.

[0072] The second fixing portion 130 may include an insertion portion 132. The insertion portion 132 may protrude downward from the spacer 131. The insertion portion 132 may be a portion that is directly inserted into the second hole H2 of the battery module B.

[0073] The second fixed part 130 can move up and down. Specifically, the second fixed part 130 can move up and down together with the movable part 112 as the movable part 112 moves up and down. When the movable part 112 is lowered, the second fixed part 130 can be inserted into the second hole H2 of the battery module B. Also, when the movable part 112 is raised, the second fixed part 130 can be disengaged from the second hole H2 of the battery module B.

[0074] The battery module transport device 100 may include an outer handle 140. The outer handle 140 may be connected to the upper part of the base portion 111. For example, the outer handle 140 may be provided in a bridge configuration with both ends connected to the base portion 111. With the battery module transport device 100 attached to the battery module B, an operator can transport the battery module B by grasping the outer handle 140. To allow the operator to easily grasp the outer handle 140, the outer handle 140 may include a horizontally extending bar portion.

[0075] The battery module transport device 100 may include an inner handle 150. The inner handle 150 may be connected to the top of the stopper 114. For example, the inner handle 150 may be provided in a bridge configuration with both ends connected to the stopper 114. When the inner handle 150 is pulled upward, the stopper 114, shaft 113, movable part 112, and second fixed part 130, which are sequentially connected to the inner handle 150, may rise together. With the operator simultaneously gripping the outer handle 140 and the inner handle 150, the inner handle 150 can be moved upward by pulling it upward with the outer handle 140 as a reference. In this case, the inner handle 150 may include a horizontally extending bar portion to allow the operator to easily grip the inner handle 150.

[0076] The process for attaching the battery module transport device 100 to battery module B is as follows:

[0077] With the battery module transport device 100 tilted slightly relative to the battery module B, the protruding part 122 is secured to the second hole H2 of the battery module B. During this process, the second fixing part 130 can be maintained in an elevated position by the operator lifting the inner handle 150.

[0078] With the protruding portion 122 securely attached to the second hole H2 of the battery module B, the battery module transport device 100 is stood upright, and the second fixing portion 130 is positioned above the first hole H1 of the battery module B.

[0079] In this state, when the operator releases their grip on the inner handle 150, the elastic restoring force of the elastic member 115 allows the movable part 112 and the second fixed part 130 connected thereto to descend, and the insertion part 132 can be inserted into the second hole H2 of the battery module B.

[0080] In this way, the battery module transport device 100 can be attached to the battery module B by inserting the protruding portion 122 into the first hole H1 of the battery module B and the insertion portion 132 into the second hole H2 of the battery module B.

[0081] The above process can be carried out on both sides of battery module B, respectively.

[0082] In this state, the worker can grasp the outer handle 140 and lift the battery module B.

[0083] The process of separating the battery module transport device 100 from the battery module B can be understood as the reverse of the process of installing the battery module transport device 100 described above.

[0084] Some embodiments of this specification described herein or other embodiments described herein are not mutually exclusive or distinct from each other. Some embodiments of this specification described herein or other embodiments described herein may be used in combination or in combination with each other in terms of their respective configurations or functions.

[0085] For example, this means that configuration A described in a particular embodiment and / or drawing can be combined with configuration B described in another embodiment and / or drawing. That is, even if the combination of configurations is not directly described, it means that combination is possible unless it is stated that combination is impossible.

[0086] The above detailed description should not be constrained in any way and should be considered illustrative. The scope of this specification should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of this specification are included within this specification. [Explanation of Symbols]

[0087] 100: Battery module transport device 110: Main body 111: Base section 112: Mobile section 113: Shaft 114: Stopper 115: Elastic member 120: First fixing part 121: Extension part 121a: Part 1 121b: Part 2 122:Protrusion 130: Second fixing part 131: Spacer 132: Insertion part 140: External handle 150: Inside handle B: Battery module H1: Hall 1 H2: Second Hall

Claims

1. A battery module transport device for transporting a battery module, which is detachably attached to a first horizontal hole and a second vertical hole provided on each side of the battery module, The main body is positioned on the side of the aforementioned battery module, A first fixing portion including an extension portion that extends downward from the main body portion along the side of the battery module, and a protrusion portion that protrudes from the extension portion toward the side of the battery module so as to be inserted into the first hole, It includes a second fixing portion that protrudes downward from the main body and is secured in the second hole, The second fixed part is configured to be vertically movable, and is a battery module transport device.

2. The main body is, When the battery module transport device is attached to the battery module, its relative position to the battery module is fixed, and the base portion to which the first fixing portion is connected, It includes a movable part that is positioned below the base and is movable up and down relative to the base, and to which the second fixing part is connected at the bottom, The battery module transport device according to claim 1, wherein the second fixing part is inserted into the second hole when the movable part is lowered, and is disengaged from the second hole when the movable part is raised.

3. The battery module transport device according to claim 2, wherein the movable part receives a restoring force in the downward direction so that the second fixed part, which is in a raised position, is lowered and positioned in the second hole.

4. The main body is, A shaft that protrudes from the upper part of the movable part and passes through the base part, A stopper connected to the shaft from the upper part of the base portion limits the maximum lowering position of the movable portion, The battery module transport device according to claim 2, further comprising an elastic member disposed between the base portion and the movable portion.

5. It further includes an outer handle connected to the upper part of the base portion and an inner handle connected to the upper part of the stopper, The battery module transport device according to claim 4, wherein the movable part rises as the inner handle is pulled upward relative to the outer handle.

6. The battery module transport device according to claim 2, wherein the distance between the base portion and the movable portion when the movable portion is at its lowest point while the battery module transport device is not mounted on the battery module is greater than the distance between the base portion and the movable portion when the battery module transport device is mounted on the battery module.

7. The battery module transport device according to claim 1, wherein the extension includes a first portion provided in the shape of a plate.

8. The extension includes a plurality of second portions that extend downward from the first portion, The battery module transport device according to claim 7, wherein the protruding portion protrudes toward the battery module side from the lower region of each of the plurality of second portions.

9. The battery module transport device according to claim 1, wherein the extension portion is adjustable in length vertically.

10. The battery module transport device according to claim 1, wherein the thickness of the protruding portion decreases in the vertical direction as it approaches the battery module.

11. The second fixing portion includes a spacer and an insertion portion that protrudes downward from the spacer and is inserted into the second hole of the battery module. The battery module transport device according to claim 1, wherein the diameter of the spacer is larger than the diameter of the second hole.

12. The battery module transport device according to claim 11, wherein the vertical length of the spacer is greater than the distance between the upper surface of the battery module and the upper end of the second hole.

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