Liquid-cooled battery PACK box body packaging device

Abstract

The utility model provides a liquid-cooled battery PACK box body packaging device, and relates to the technical field of battery energy storage. The liquid-cooled battery PACK box body packaging device comprises a cluster frame and a PACK mechanism, the cluster frame comprises a support, a supporting plate and a pressing assembly, the supporting plate is horizontally connected to the support, and the pressing assembly is arranged on the support in the Z direction in a lifting mode and located above the supporting plate; the PACK mechanism comprises a battery box body and a plurality of groups of auxiliary wheel assemblies, the battery box body is provided with a plurality of storage cavities with downward openings at intervals, and the plurality of groups of auxiliary wheel assemblies and the plurality of storage cavities are telescopically connected to the battery box body in a one-to-one correspondence manner; after the battery box body is placed on the supporting plate in a rolling mode through the auxiliary wheel assemblies, the downward pressing assemblies descend in the Z direction, and the auxiliary wheel assemblies can retract into the corresponding storage cavities. According to the device, the use cost, the time cost and the labor cost can be reduced, meanwhile, the convenience and applicability during mounting and dismounting are improved, and the safety of the PACK box body after the PACK box body enters the cabinet is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage, in particular to a liquid-cooled battery PACK box container device. Background Art

[0002] When existing liquid-cooled battery PACK boxes are placed into cabinets or container clusters, auxiliary tools or manpower are mostly used to complete the placement. This method of placement is time-consuming and labor-intensive, and subsequent disassembly is difficult. Some PACK boxes are equipped with fixed roller structures under them. Although this method can improve the convenience of assembly and disassembly, after the PACK box is placed into the cabinet, the weight of the entire PACK box is supported entirely by the roller structure. Especially when subjected to longitudinal impact during transportation or under working conditions such as earthquakes, the force transmitted to the roller assembly is several times the weight of the entire PACK box, which can easily cause damage to the roller structure, making the PACK box tilted and unstable, and having poor safety. Using a PACK insertion tool to place the battery into the cabinet can avoid the problem of difficult disassembly and save a certain amount of time and labor costs, but due to its complex structure and high price, the cost of use increases, and it may limit the space of the target PACK box, resulting in poor applicability. Utility Model Content

[0003] The purpose of the present utility model is to provide a liquid-cooled battery PACK box assembly device, which can reduce the use cost, time cost and labor cost, while improving the convenience and applicability during installation and disassembly, and ensuring the safety of the PACK box after it is placed in the cabinet.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Liquid-cooled battery PACK box container device, including:

[0006] The cluster frame comprises a bracket, a support plate and a pressing assembly, wherein the support plate is horizontally connected to the bracket, and the pressing assembly is arranged on the bracket so as to be liftable along the Z direction and located above the support plate;

[0007] The PACK mechanism includes a battery box and multiple sets of auxiliary wheel assemblies. The battery box is provided with multiple downward-opening storage cavities at intervals. The multiple sets of auxiliary wheel assemblies are retractably connected to the battery box in a one-to-one correspondence with the multiple storage cavities.

[0008] When the battery box is rolled and placed on the support plate by the auxiliary wheel assembly, the pressing assembly descends along the Z direction, so that the auxiliary wheel assembly can be retracted into the corresponding storage cavity.

[0009] As a further technical solution, two side beams are provided on the lower end surface of the battery box, and the two side beams are respectively arranged close to the two first side walls of the bracket distributed along the X direction and extend along the Y direction. A plurality of storage cavities are provided on the two side beams, and the openings of the plurality of storage cavities are all provided on the lower end surface of the corresponding side beams;

[0010] Each of the auxiliary wheel assemblies includes a mounting member, a roller, a compression spring and a connecting shaft. The lower end surface of the mounting member is provided with a mounting groove, and the roller is rotatably arranged in the mounting groove through the connecting shaft. The first end of the compression spring is connected to the upper end surface of the mounting member, and the second end is connected to the mounting wall corresponding to the storage cavity.

[0011] As a further technical solution, the auxiliary wheel assembly further includes a guide cylinder, which is sleeved on the compression spring and fixedly connected to the upper end surface of the mounting member or the mounting wall.

[0012] As a further technical solution, the rollers and / or the compression springs are provided in plurality, the plurality of compression springs are spaced apart between the upper end surface of the mounting member and the mounting wall, and the plurality of rollers are spaced apart in the mounting groove along the rolling direction.

[0013] As a further technical solution, a reinforcing plate is provided below the mounting wall, a guide channel is provided on the reinforcing plate corresponding to the compression spring, and the second end of the compression spring passes through the guide channel and is connected to the corresponding mounting wall.

[0014] As a further technical solution, the upper end surface and / or the lower end surface of the reinforcing plate is provided with a reinforcing vertical plate.

[0015] As a further technical solution, corresponding to the storage cavity, two second side walls of the side beam are provided with long guide holes allowing the connecting shaft to pass through, and each of the long guide holes extends in the height direction.

[0016] As a further technical solution, two groups of the pressing-down components are provided, and the two groups of the pressing-down components are lifted and lowered on the two first side walls in a one-to-one correspondence with the two side beams.

[0017] As a further technical solution, each of the down-pressing components includes a down-pressing member, a connecting member and a power member. The connecting member can be raised and lowered and connected to the corresponding first side wall. The down-pressing member is fixedly connected to the connecting member, and the lower end surface of the down-pressing member is horizontally arranged. The power member is arranged at the corresponding first side wall, and the output shaft of the power member is transmission-connected to the connecting member.

[0018] As a further technical solution, each of the downward pressing components also includes a guide groove and a guide block, the guide groove extends along the height direction, one of the guide groove and the guide block is arranged on the corresponding first side wall, and the other is arranged on the connecting member, and the guide groove and the guide block are slidably matched.

[0019] Compared with the existing technology, the liquid-cooled battery PACK box container device provided by the present invention has the following technical advantages:

[0020] Since the battery box is provided with multiple storage cavities with openings facing downwards, multiple sets of auxiliary wheel assemblies are retractably connected to the battery box in a one-to-one correspondence with the multiple storage cavities. Therefore, the battery box can be placed on the cluster rack by rolling with the help of the auxiliary wheel assembly, thereby improving the convenience of placing the battery box into the cabinet; and after the battery box is placed on the support plate, as the downward pressure assembly descends along the Z direction, the auxiliary wheel assembly is under pressure and retracts into the corresponding storage cavity; when the battery box needs to be removed from the cluster rack, the downward pressure assembly rises along the Z direction, the auxiliary wheel assembly is no longer under pressure, and extends from the corresponding storage cavity. In this state, it is easy to remove the battery box from the cluster rack. During the entire process, the retractable auxiliary wheel assembly can, firstly, improve the convenience of the battery box when it is placed in the cabinet or removed with the assistance of the auxiliary wheel assembly, thereby reducing time and labor costs. In addition, since no external tools are required, the cost of use can be reduced. Secondly, after the battery box is placed on the support plate, the auxiliary wheel assembly retracts into the corresponding storage cavity under the action of the down-pressing assembly, and the battery box directly contacts the support plate. During transportation and earthquake conditions, when the battery box is subjected to additional impact force in the Z direction, the additional force can be borne by the support plate, and the auxiliary wheel assembly will not be subjected to impact forces other than the weight of the battery box. This can reduce the probability of damage to the auxiliary wheel assembly due to force, thereby reducing the probability of the battery box tilting and becoming unstable after being placed in the cabinet, thereby improving safety in use. Thirdly, since the down-pressing assembly can be raised and lowered on the bracket along the Z direction, after the battery box is placed on the support plate, the distance the down-pressing assembly descends in the Z direction can be adjusted according to the specifications of the auxiliary wheel assembly. That is, it is suitable for auxiliary wheel assemblies and battery boxes of different specifications, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1This is a schematic structural diagram of a liquid-cooled battery PACK box container device provided by an embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the auxiliary wheel assembly in the liquid-cooled battery PACK box container provided by an embodiment of the present invention retracted into the storage cavity;

[0024] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 This is a structural diagram of the PACK mechanism in the liquid-cooled battery PACK box container device provided by an embodiment of the present utility model;

[0026] Figure 5 This is a structural schematic diagram of the auxiliary wheel assembly in the liquid-cooled battery PACK box container device provided by an embodiment of the present utility model;

[0027] Figure 6 This is a partial structural cross-sectional view of a liquid-cooled battery PACK box container assembly provided by an embodiment of the present utility model;

[0028] Figure 7 This is a schematic structural diagram of the side beams in the liquid-cooled battery PACK box container assembly provided by an embodiment of the present invention;

[0029] Figure 8 It is a partial structural side view of the liquid-cooled battery PACK box container device provided by an embodiment of the present utility model.

[0030] In the picture:

[0031] 100, cluster frame; 110, bracket; 111, first side wall; 120, support plate; 130, pressing assembly; 131, pressing member; 132, connecting member;

[0032] 200. PACK mechanism; 210. Battery box; 220. Auxiliary wheel assembly; 221. Mounting part; 222. Roller; 223. Compression spring; 224. Connecting shaft; 225. Guide cylinder; 230. Side beam; 231. Mounting wall; 232. Reinforcement plate; 2321. Guide channel; 2322. Reinforcement vertical plate; 233. Second side wall; 234. Guide long hole. DETAILED DESCRIPTION

[0033] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0034] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0036] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0037] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0038] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0040] Combine Figures 1 to 8 As shown, the liquid-cooled battery PACK box container device provided in this embodiment can reduce usage cost, time cost and labor cost, while improving the convenience and applicability during installation and disassembly. Specifically, the liquid-cooled battery PACK box assembly device includes a cluster rack 100 and a PACK mechanism 200: the cluster rack 100 includes a bracket 110, a support plate 120 and a downward pressure assembly 130, the support plate 120 is horizontally connected to the bracket 110, and the downward pressure assembly 130 can be raised and lowered along the Z direction on the bracket 110 and is located above the support plate 120; the PACK mechanism 200 includes a battery box 210 and multiple sets of auxiliary wheel assemblies 220, the battery box 210 is provided with multiple storage cavities with openings facing downward at intervals, and the multiple sets of auxiliary wheel assemblies 220 are telescopically connected to the battery box 210 in a one-to-one correspondence with the multiple storage cavities; when the battery box 210 is rolled and placed on the support plate 120 through the auxiliary wheel assembly 220, the downward pressure assembly 130 descends along the Z direction, enabling the auxiliary wheel assembly 220 to retract into the corresponding storage cavity.

[0041] Multiple support plates 120 are arranged parallel and spaced apart along the Z direction on the bracket 110. Multiple sets of downward pressure assemblies 130 are provided corresponding to the multiple support plates 120, thereby achieving the technical effect of accommodating multiple PACK mechanisms 200 in the same cluster rack 100. In this embodiment, the process and principle of accommodating the PACK mechanism 200 in the cluster rack 100 are described using one support plate 120 and its corresponding downward pressure assembly 130 as an example.

[0042] Since the battery box 210 has multiple storage cavities with openings facing downward, multiple sets of auxiliary wheel assemblies 220 are retractably connected to the battery box 210 in a one-to-one correspondence with the multiple storage cavities. Therefore, the battery box 210 can be placed on the cluster rack 100 by rolling with the auxiliary wheel assembly 220, thereby improving the convenience of placing the battery box 210 into the cabinet; and after the battery box 210 is placed on the support plate 120, as the downward pressure assembly 130 descends along the Z direction, the auxiliary wheel assembly 220 is under pressure and retracts into the corresponding storage cavity; when the battery box 210 needs to be removed from the cluster rack 100, the downward pressure assembly 130 rises along the Z direction, the auxiliary wheel assembly 220 is no longer under pressure, and extends from the corresponding storage cavity. In this state, it is easy to remove the battery box 210 from the cluster rack 100. During the whole process, the auxiliary wheel assembly 220 is retractably provided. On the one hand, the battery box 210 can be assisted by the auxiliary wheel assembly 220 to improve the convenience of the battery box 210 when it is put into the cabinet or disassembled, thereby reducing time cost and labor cost, and because no external tools are required, the cost of use can be reduced; on the other hand, after the battery box 210 is placed on the support plate 120, under the action of the pressing assembly 130, the auxiliary wheel assembly 220 retracts into the corresponding storage cavity, and the battery box 210 directly contacts the support plate 120. During transportation and earthquake conditions, when the battery box 210 is subjected to additional impact force in the Z direction, the additional force generated The support plate 120 can bear the weight, and the auxiliary wheel assembly 220 will not be subjected to impact forces other than the weight of the battery box 210, thereby reducing the probability of the auxiliary wheel assembly 220 being damaged by force, thereby reducing the probability of the battery box 210 being tilted and unstable after being placed in the cabinet, thereby improving safety in use; thirdly, since the downward pressure assembly 130 can be raised and lowered on the bracket 110 along the Z direction, after the battery box 210 is placed on the support plate 120, the distance that the downward pressure assembly 130 descends along the Z direction can be adaptively adjusted according to the specifications of the auxiliary wheel assembly 220, that is, it is suitable for auxiliary wheel assemblies 220 and battery boxes 210 of different specifications, and has strong applicability.

[0043] Preferably, two side beams 230 are provided on the lower end surface of the battery box 210. The two side beams 230 are respectively arranged near the two first side walls 111 distributed along the X direction of the bracket 110, and both extend along the Y direction. Multiple storage cavities are provided on the two side beams 230, and the openings of the multiple storage cavities are all arranged on the lower end surface of the corresponding side beams 230.

[0044] Combine Figure 2 and Figure 4As shown, in this embodiment, two side beams 230 are respectively arranged near the two first side walls 111 of the bracket 110 distributed along the X direction. Each side beam 230 is provided with three storage cavities, and the three storage cavities are evenly spaced along the Y direction on the corresponding side beam 230. Three sets of auxiliary wheel assemblies 220 are provided on the same side beam 230 corresponding to the three storage cavities. In this arrangement, the two side beams 230 cooperate with each other to ensure the stability of the battery box 210 placed on the support plate 120 in the X direction; the three sets of auxiliary wheel assemblies 220 evenly spaced on the same side beam 230 cooperate with each other to ensure that the gravity of the battery box 210 distributed to each set of auxiliary wheel assemblies 220 is equal before the pressing assembly 130 descends along the Z direction, thereby reducing the probability of damage to the auxiliary wheel assemblies 220. In some other embodiments, in order to further reduce the probability of the auxiliary wheel assembly 220 being damaged, the side beams 230 arranged on the lower end surface of the battery box 210 can be appropriately increased. For example, three, four or five side beams 230 are arranged at intervals along the X direction on the lower end surface of the battery box 210; the storage cavities evenly spaced on the same side beam 230 can also be appropriately increased. For example, four, five or six storage cavities are evenly spaced in the Y direction on the same side beam 230, and the number of auxiliary wheel assemblies 220 is set corresponding to the storage cavities.

[0045] Each auxiliary wheel assembly 220 includes a mounting member 221, a roller 222, a compression spring 223 and a connecting shaft 224. The lower end surface of the mounting member 221 is provided with a mounting groove, and the roller 222 is rotatably set in the mounting groove through the connecting shaft 224. The first end of the compression spring 223 is connected to the upper end surface of the mounting member 221, and the second end is connected to the mounting wall 231 of the corresponding storage cavity.

[0046] Combine Figure 2 and Figure 6As shown in the figure, taking one set of auxiliary wheel assemblies 220 as an example, in this embodiment, the mounting member 221 is set as a rigid member with a "冂"-shaped cross-section in the Z direction, so that a mounting groove with an opening facing downwards is formed in the middle of the mounting member 221; mounting holes (not shown in the figure) are correspondingly provided on the two side walls of the mounting member 221, the roller 222 is fixedly sleeved on the connecting shaft 224, and both ends of the connecting shaft 224 are correspondingly inserted into the two mounting holes; the mounting member 221 improves the mounting strength and mounting stability of the roller 222, and plays a protective role for the roller 222, reducing the probability that the roller 222 is damaged by external components, thereby improving the service life of the auxiliary wheel assembly 220 and the PACK mechanism 200. The first end of the compression spring 223 is connected to the upper end surface of the mounting member 221, and the second end is connected to the mounting wall 231 of the corresponding storage cavity; during the process of placing the battery box body 210 on the support plate 120, the battery box body 210 does not bear external pressure. In this state, the roller 222 extends out of the corresponding storage cavity to facilitate the battery box body 210 to be put into the cabinet; after the battery box body 210 is placed on the support plate 120, as the pressing component 130 descends in the Z direction, the compression spring 223 is compressed and retracted, so that the roller 222 retracts into the corresponding storage cavity. In this state, the auxiliary wheel assembly 220 no longer bears the self-gravity of the battery assembly; when the battery box body 210 needs to be disassembled from the cluster rack 100, the pressing component 130 ascends in the Z direction, the compression spring 223 no longer bears external pressure and starts to rebound automatically, and again drives the roller 222 to extend out of the corresponding storage cavity to facilitate the disassembly of the battery box body 210.

[0047] After the roller 222 extends out of the corresponding storage cavity, the downward pressure F required to retract the roller 222 into the corresponding storage cavity is related to the distance Y between the lowest point of the roller 222 and the lower end surface of the corresponding side beam 230 and the elastic coefficient K of the compression spring 223 when the battery box body 210 does not bear external force. Specifically:

[0048] F = N×K×Y

[0049] In order to improve the convenience of retracting the roller 222 into the corresponding storage cavity, when the battery box body 210 does not bear external force, the distance Y between the lowest point of the roller 222 and the lower end surface of the corresponding side beam 230 should not be too large. <00001​​​​​As shown, in this embodiment, two compression springs 223 are spaced apart along the Y direction between the upper end surface of the mounting member 221 and the mounting wall 231. This further reduces the force borne by each compression spring 223, thereby extending the service life of the auxiliary wheel assembly 220 and the PACK mechanism 200. In other embodiments, the number of rollers 222 connected to the same mounting member 221 can be increased to reduce the force borne by each roller 222, thereby extending the service life of the auxiliary wheel assembly 220 and the PACK mechanism 200.

[0052] The selection of compression spring 223 refers to the following formula:

[0053]

[0054] Wherein, X is the deformation of the compression spring 223 , N is the number of the compression springs 223 , and K is the elastic coefficient of the compression spring 223 .

[0055] Preferably, the auxiliary wheel assembly 220 further includes a guide cylinder 225 . The guide cylinder 225 is sleeved on the compression spring 223 , and the guide cylinder 225 is fixedly connected to the upper end surface of the mounting member 221 or the mounting wall 231 .

[0056] Specific combination Figure 5 and Figure 6 As shown, in this embodiment, the guide tube 225 is sleeved around the compression spring 223, and the first end of the guide tube 225 is fixedly connected to the upper end surface of the mounting member 221. This arrangement, on the one hand, allows the guide tube 225 to guide the compression spring 223 to always extend and retract along a predetermined path, preventing the compression spring 223 from tilting or tilting during the extension and retraction process, thereby further improving the safety of the battery box 210 when placed in the cabinet. On the other hand, the guide tube 225 limits the amount of compression of the compression spring 223. When the downward pressure on the battery box 210 is sufficiently large, the second end of the guide tube 225 abuts against the mounting wall 231, preventing the compression spring 223 from being damaged by excessive external force. In some other embodiments, the second end of the guide cylinder 225 is fixedly connected to the mounting wall 231, and when the downward pressure on the battery box 210 is large enough, the first end of the guide cylinder 225 abuts against the upper end surface of the mounting member 221; or, the guide cylinder 225 is not provided, and a guide column is provided, and the guide column is fixedly connected to the upper end surface of the mounting member 221 or the mounting wall 231, and the compression spring 223 is sleeved on the guide column.

[0057] Preferably, a reinforcing plate 232 is provided below the mounting wall 231 , and a guide channel 2321 is provided on the reinforcing plate 232 corresponding to the compression spring 223 , and the second end of the compression spring 223 passes through the guide channel 2321 and is connected to the corresponding mounting wall 231 .

[0058] Combine Figure 6 and Figure 7As shown, in this embodiment, the reinforcing plate 232 is arranged horizontally, and the guide channel 2321 is arranged corresponding to the guide cylinder 225, and the guide cylinder 225 is inserted into the guide channel 2321. With this arrangement, the reinforcing plate 232 can enhance the inherent strength of the corresponding side beam 230, thereby extending its service life. The guide channel 2321 cooperates with the guide cylinder 225, and the guide cylinder 225 further guides the compression spring 223 to always extend and retract along a predetermined path. In other embodiments, the guide cylinder 225 can be omitted, and the second end of the compression spring 223 directly passes through the guide channel 2321 and connects to the corresponding mounting wall 231. When the downward pressure on the battery box 210 is sufficiently large, the upper end surface of the mounting member 221 directly abuts the lower end surface of the reinforcing plate 232.

[0059] Combine Figure 3 As shown, to further enhance the strength of the side beam 230, in this embodiment, a reinforcing vertical plate 2322 is provided on the lower end surface of the reinforcing plate 232. The number of reinforcing vertical plates 2322 provided for each reinforcing plate 232 can be appropriately increased or decreased based on the actual weight of the battery case 210, and is not specifically limited in this embodiment. In other embodiments, the reinforcing vertical plates 2322 may also be provided on the upper end surface of the reinforcing plate 232; or, reinforcing vertical plates 2322 may be provided on both the lower and upper end surfaces of the reinforcing plate 232.

[0060] Preferably, corresponding to the storage cavity, the two second side walls 233 of the side beam 230 are provided with long guide holes 234 allowing the connecting shaft 224 to pass through, and each long guide hole 234 extends in the height direction.

[0061] Combine Figure 7 and Figure 8 As shown, both ends of the connecting shaft 224 pass through corresponding mounting holes and are inserted into the corresponding guide slots 234. This arrangement, during the expansion and contraction of the compression spring 223, not only guides the compression spring 223 and the roller 222 to always expand and contract along a predetermined path, but also limits the relative position of the auxiliary wheel assembly 220 and the side beam 230 in the Y direction, preventing the auxiliary wheel assembly 220 from deflecting or shifting in the Y direction within the storage cavity, thereby further improving safety.

[0062] Preferably, two groups of the pressing-down components 130 are provided, and the two groups of the pressing-down components 130 and the two side beams 230 are lifted and lowered on the two first side walls 111 in a one-to-one correspondence.

[0063] Combine Figure 2 and Figure 3As shown, since two side beams 230 are provided in this embodiment, the two side beams 230 are respectively provided close to the two first side walls 111 distributed along the X direction of the bracket 110, and the two side beams 230 protrude from the battery case 210 in the direction close to the corresponding first side walls 111, thus, the two sets of downward pressure components 130 and the two side beams 230 are raised and lowered and provided on the two first side walls 111 in a one-to-one correspondence. After the battery case 210 is placed on the support plate 120, the two sets of downward pressure components 130 are synchronously lowered along the Z direction to ensure that the downward pressure received by various parts of the battery case 210 is balanced, and to avoid the situation where the auxiliary wheel assembly 220 is damaged due to uneven force. In other embodiments, the number of downward pressure components 130 is specifically set according to the actual weight of the battery case 210 itself and the number of auxiliary wheel assemblies 220.

[0064] Specifically, each pressing component 130 includes a pressing member 131, a connecting member 132 and a power member (not shown in the figure). The connecting member 132 can be raised and lowered and connected to the corresponding first side wall 111. The pressing member 131 is fixedly connected to the connecting member 132, and the lower end surface of the pressing member 131 is horizontally arranged. The power member is arranged on the corresponding first side wall 111, and the output shaft of the power member is transmission-connected to the connecting member 132.

[0065] Combine Figure 2 and Figure 3 As shown, taking one of the pressing components 130 as an example, in this embodiment, the pressing component 131 and the connecting component 132 are both configured in a plate shape, and the power component is configured as a push rod motor. The output shaft of the push rod motor extends along the X direction and is in transmission connection with the connecting component 132. In order to avoid interference between the push rod motor and the battery box 210 or the support plate 120, the push rod motor is arranged above the support plate 120. As the output shaft of the push rod motor expands and contracts, it drives the connecting component 132 and the pressing component 131 to descend or ascend along the Z direction on the corresponding first side wall 111, thereby applying downward pressure to the battery box 210 or releasing the downward pressure on the battery box 210, so as to complete the installation or removal of the battery box 210. In other embodiments, the power component can also be configured as a cylinder, an electric cylinder, etc., or a chain transmission component, a gear transmission component, etc. can be provided between the output shaft of the power component and the connecting component 132. The specific configuration is based on the existing technology and will not be repeated in this embodiment.

[0066] Preferably, each pressing assembly 130 further includes a guide groove (not shown in the figure) and a guide block (not shown in the figure), the guide groove extending in the height direction, one of the guide groove and the guide block being arranged on the corresponding first side wall 111, and the other being arranged on the connecting member 132, and the guide groove and the guide block slidingly cooperate. With such an arrangement, through the sliding cooperation of the guide groove and the guide block, on the one hand, the connecting member 132 and the pressing member 131 are guided to always rise and fall along the Z direction according to the established path, thereby ensuring the accuracy of applying downward pressure to the battery case 210 or releasing the downward pressure on the battery case 210; on the other hand, the relative position of the connecting member 132 and the pressing member 131 and the corresponding first side wall 111 in the Y direction is limited, thereby avoiding the situation of displacement and misalignment in the Y direction relative to the corresponding first side wall 111 during the process of the connecting member 132 and the pressing member 131 rising and falling along the Z direction, thereby improving the stability and safety of use.

[0067] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Liquid-cooled battery PACK box container device, characterized in that: include: A cluster frame (100) comprises a bracket (110), a support plate (120) and a pressing assembly (130), wherein the support plate (120) is horizontally connected to the bracket (110), and the pressing assembly (130) is arranged on the bracket (110) so as to be movable along a Z direction and located above the support plate (120); A PACK mechanism (200) comprises a battery box (210) and a plurality of auxiliary wheel assemblies (220), wherein the battery box (210) is provided with a plurality of storage cavities with downward openings at intervals, and the plurality of auxiliary wheel assemblies (220) are retractably connected to the battery box (210) in a one-to-one correspondence with the plurality of storage cavities; When the battery box (210) is rolled and placed on the support plate (120) via the auxiliary wheel assembly (220), the pressing assembly (130) descends along the Z direction, enabling the auxiliary wheel assembly (220) to retract into the corresponding storage cavity.

2. The liquid-cooled battery PACK box assembly device according to claim 1, characterized in that: The lower end surface of the battery box (210) is provided with two side beams (230), the two side beams (230) are respectively arranged close to the two first side walls (111) of the bracket (110) distributed along the X direction, and both extend along the Y direction, and the two side beams (230) are each provided with a plurality of storage cavities, and the openings of the plurality of storage cavities are each arranged at the lower end surface of the corresponding side beam (230); Each auxiliary wheel assembly (220) comprises a mounting member (221), a roller (222), a compression spring (223) and a connecting shaft (224); a mounting groove is provided on the lower end surface of the mounting member (221); the roller (222) is rotatably arranged in the mounting groove via the connecting shaft (224); a first end of the compression spring (223) is connected to the upper end surface of the mounting member (221), and a second end is connected to a mounting wall (231) corresponding to the storage cavity.

3. The liquid-cooled battery PACK box assembly device according to claim 2, characterized in that: The auxiliary wheel assembly (220) further includes a guide cylinder (225), the guide cylinder (225) being sleeved on the compression spring (223), and the guide cylinder (225) being fixedly connected to the upper end surface of the mounting member (221) or the mounting wall (231).

4. The liquid-cooled battery PACK box assembly device according to claim 2, characterized in that: A plurality of the rollers (222) and / or the compression springs (223) are provided, and the plurality of compression springs (223) are spaced apart between the upper end surface of the mounting member (221) and the mounting wall (231), and the plurality of rollers (222) are spaced apart in the mounting groove along the rolling direction.

5. The liquid-cooled battery PACK box assembly device according to claim 2, characterized in that: A reinforcing plate (232) is provided below the installation wall (231), and a guide channel (2321) is provided on the reinforcing plate (232) corresponding to the compression spring (223), and the second end of the compression spring (223) passes through the guide channel (2321) and is connected to the corresponding installation wall (231).

6. The liquid-cooled battery PACK box assembly device according to claim 5, characterized in that: The upper end surface and / or the lower end surface of the reinforcing plate (232) are provided with a reinforcing vertical plate (2322).

7. The liquid-cooled battery PACK box assembly device according to claim 2, characterized in that: Corresponding to the storage cavity, two second side walls (233) of the side beam (230) are each provided with a guide long hole (234) allowing the connecting shaft (224) to pass through, and each of the guide long holes (234) extends in the height direction.

8. The liquid-cooled battery PACK box assembly device according to claim 2, characterized in that: The pressing-down components (130) are provided in two groups, and the two groups of pressing-down components (130) are correspondingly lifted and lowered on the two first side walls (111) in a one-to-one manner with the two side beams (230).

9. The liquid-cooled battery PACK box assembly device according to claim 8, characterized in that: Each of the pressing components (130) includes a pressing member (131), a connecting member (132) and a power member. The connecting member (132) can be lifted and connected to the corresponding first side wall (111). The pressing member (131) is fixedly connected to the connecting member (132), and the lower end surface of the pressing member (131) is horizontally arranged. The power member is arranged at the corresponding first side wall (111), and the output shaft of the power member is transmission-connected to the connecting member (132).

10. The liquid-cooled battery PACK box assembly device according to claim 9, characterized in that: Each of the pressing components (130) further includes a guide groove and a guide block, wherein the guide groove extends in the height direction, one of the guide groove and the guide block is arranged on the corresponding first side wall (111), and the other is arranged on the connecting member (132), and the guide groove and the guide block are slidably matched.

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