Underframe structure, prefabricated cabin and energy storage system

Abstract

The utility model relates to the field of prefabricated cabins, and discloses an underframe structure, a prefabricated cabin and an energy storage system. The chassis structure comprises a first boundary beam; the corner piece is connected with the first edge beam and protrudes out of the surface, deviating from the center of the underframe structure, of the first edge beam; the grounding piece is connected with the first edge beam; wherein in the direction that the corner piece protrudes out of the surface of the first boundary beam, the size of the grounding piece protruding out of the surface of the first boundary beam is smaller than or equal to the size of the corner piece protruding out of the surface of the first boundary beam, or the grounding piece does not protrude out of the surface of the first boundary beam. The protruding size of the corner piece is larger than or equal to the protruding size of the grounding piece, or the grounding piece does not protrude out of the surface of the first surface, so that the corner piece can serve as the outermost edge structure of the underframe structure, and in the process of transferring, loading, unloading or stacking the prefabricated cabin, the corner piece serving as the outermost edge structure is firstly subjected to external impact and collision; therefore, the probability that the grounding piece is collided and impacted is reduced, and the situation that the grounding piece is damaged is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated cabins, and in particular to a chassis structure, a prefabricated cabin and an energy storage system. Background Art

[0002] Prefabricated cabins are a special type of modular building that can be used in smart substations and energy storage systems in the power industry. Prefabricated cabins are highly standardized and modular, which can significantly speed up construction and deployment.

[0003] In the related art, the prefabricated cabin includes a base frame structure, an enclosure structure and a top frame structure. The base frame structure is supported at the bottom of the enclosure structure, and the top frame structure is arranged at the top of the enclosure structure. The prefabricated cabin is usually provided with a grounding piece, which is used to connect to the grounding wire. When the insulation of the electrical equipment in the prefabricated cabin is damaged, the grounding piece can lead the current of the prefabricated cabin to the ground to avoid electric shock accidents.

[0004] The grounding piece in the related art is arranged on the side of the base structure, and the grounding piece protrudes from the side of the base structure to a large extent. During the transfer or transportation of the prefabricated cabin, the grounding piece is easy to interfere or collide with other objects, resulting in damage to the grounding piece. Utility Model Content

[0005] In view of this, the utility model provides a chassis structure, a prefabricated cabin and an energy storage system to solve the problem that the grounding piece is prone to interfere or collide with other objects during the transfer or transportation of the prefabricated cabin.

[0006] In a first aspect, the utility model provides a chassis structure, comprising:

[0007] first side beam;

[0008] a corner piece, the corner piece being connected to the first side beam, the corner piece protruding from a surface of the first side beam away from the center of the chassis structure;

[0009] A grounding member connected to the first side beam;

[0010] Wherein, in the direction in which the corner piece protrudes from the surface of the first side beam, the size of the grounding piece protruding from the surface of the first side beam is less than or equal to the size of the corner piece protruding from the surface of the first side beam, or the grounding piece does not protrude from the surface of the first side beam.

[0011] In an optional embodiment, a limiting groove is provided on the surface of the first side beam facing away from the center, at least a portion of the grounding member is placed in the limiting groove, and the limiting groove limits the grounding member in a direction perpendicular to the notch of the limiting groove.

[0012] In an optional embodiment, the first side beam is configured as a tubular beam, the limiting groove is configured to penetrate along the wall thickness direction of the first side beam, and the grounding member is connected to the limiting groove via a sealed conductive structure.

[0013] In an optional embodiment, a connection hole is provided on the grounding member, and the connection hole is used to connect with a fastener of the grounding wire.

[0014] In an optional embodiment, under the condition that the grounding member extends beyond the surface of the first side beam away from the center, a flange is provided at a portion of the grounding member extending beyond the first side beam, and the flange abuts against the surface of the grounding member away from the center.

[0015] In an optional embodiment, the first side beam is configured as a tubular beam, and the depth of the limiting groove is less than the wall thickness of the first side beam.

[0016] In an optional embodiment, the grounding member is configured as a conductive block;

[0017] Alternatively, the grounding member is configured as an integrated plate structure, both sides of the grounding member have folded edges, and the folded edges of the grounding member are connected to the first side beam.

[0018] In an optional embodiment, a protective layer is provided on at least a portion of the surface of the grounding element.

[0019] In a second aspect, the utility model further provides a prefabricated cabin, comprising a top frame structure, a surrounding structure and the bottom frame structure as described above, which are arranged in sequence from top to bottom.

[0020] In a third aspect, the utility model further provides an energy storage system, comprising the base frame structure as described above, or the prefabricated cabin as described above, wherein batteries are placed on the base frame structure.

[0021] The chassis structure provided by the utility model is such that both the corner piece and the ground piece are connected to the first side beam, and the corner piece protrudes from the outer surface of the first side beam, and in the direction in which the corner piece protrudes from the first side beam, the protruding size of the corner piece is greater than or equal to the protruding size of the ground piece, or the ground piece does not protrude from the surface of the first surface, so that the corner piece can be used as the outermost edge structure of the chassis structure. During the transfer, loading and unloading or stacking of the prefabricated cabin, the corner piece, as the outermost edge structure, is first subjected to external impact and collision, thereby reducing the probability of the ground piece being subjected to collision and impact, thereby reducing damage to the ground piece.

[0022] The prefabricated cabin and energy storage system provided by the utility model, because they include the base frame structure of the utility model, also include all the above advantages of the base frame structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 Structural schematic diagram of a prefabricated cabin according to an embodiment of the present utility model;

[0025] Figure 2 Schematic diagram of the first connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0026] Figure 3 Schematic diagram of the second connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0027] Figure 4 Schematic diagram of the third connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0028] Figure 5 Schematic diagram of the fourth connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0029] Figure 6 Schematic diagram of the fifth connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0030] Figure 7 Schematic diagram of the sixth connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0031] Figure 8 Schematic diagram of the seventh connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0032] Figure 9 Schematic diagram of the eighth connection form between the grounding part and the first side beam according to an embodiment of the present utility model;

[0033] Figure 10 Schematic diagram of the ninth connection form between the grounding part and the first side beam according to an embodiment of the present utility model.

[0034] Explanation of reference numerals:

[0035] 1. First side beam; 101. Limit groove; 2. Second side beam; 3. Corner fitting; 4. Grounding part; 401. Flange; 402. Hem; 403. Connection hole; 5. Enclosure structure; 6. Top frame structure; 7. Fastener. Specific embodiments

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] Combine the following Figures 1 to 10 , describing the chassis structure provided in an embodiment of the present utility model.

[0038] Specifically, the chassis structure includes a first side beam 1 , an angle piece 3 and a grounding piece 4 .

[0039] Among them, the corner piece 3 is connected to the first side beam 1, for example, the corner piece 3 is welded to the first side beam 1. The corner piece 3 protrudes from the surface of the first side beam 1 away from the center of the chassis structure. The surface of the first side beam 1 away from the center of the chassis structure refers to the outer surface of the first side beam 1. In addition, it should be noted that the corner piece 3 can be used to be connected to a hoist or a forklift, so as to facilitate the hoisting or forklifting of the prefabricated cabin through the corner piece 3. In addition, the corner piece 3 can also be connected to the corner pieces 3 of other prefabricated cabins, so that the connected prefabricated cabins can be connected through the corner piece 3. The corner piece 3 is a product in the container field, and the present application does not involve the structural improvement of the corner piece 3, so it will not be repeated.

[0040] The grounding member 4 is connected to the first side beam 1. The grounding member 4 is used to be connected to the grounding wire so that the current of the prefabricated cabin can be transmitted to the ground through the grounding member 4 and the grounding wire.

[0041] In the direction in which the corner piece 3 protrudes from the surface of the first side beam 1, the dimension of the grounding piece 4 protruding from the surface of the first side beam 1 is less than or equal to the dimension of the corner piece 3 protruding from the surface of the first side beam 1. Alternatively, in the direction in which the corner piece 3 protrudes from the surface of the first side beam 1, the grounding piece 4 does not protrude from the surface of the first side beam 1, that is, the grounding piece 4 is flush with the surface of the first side beam, or is located on the inner side of the surface of the first side beam. The direction in which the corner piece 3 protrudes from the first side beam 1 is a direction perpendicular to the outer surface of the first side beam 1.

[0042] In this embodiment, by connecting both the corner fitting 3 and the grounding member 4 to the first side beam 1, and the corner fitting 3 protruding from the outer surface of the first side beam 1, in the direction where the corner fitting 3 protrudes from the first side beam 1, the protruding dimension of the corner fitting 3 is greater than or equal to the protruding dimension of the grounding member 4, or the grounding member 4 does not protrude from the surface of the first surface, so that the corner fitting 3 can be used as the outermost edge structure of the chassis structure. During the transfer, loading, unloading, or stacking of the prefabricated cabin, the corner fitting 3, as the outermost edge structure, is the first to receive external impacts and collisions, thereby reducing the probability of the grounding member 4 being collided and impacted, and reducing the damage of the grounding member 4.

[0043] In addition, by providing the corner fitting 3, the prefabricated cabin can be transported or loaded and unloaded through the corner fitting 3, or adjacent prefabricated cabins can be connected through the corner fitting 3, so as to facilitate the transportation of the prefabricated cabin.

[0044] Reference Figures 1 - 4 As shown, in some embodiments provided by the present utility model, the chassis structure further includes a second side beam 2. The second side beam 2 intersects and is connected to the first side beam 1. For example, the first side beam 1 and the second side beam 2 are perpendicular, and the first side beam 1 and the second side beam 2 are welded together. The corner fitting 3 is connected to the intersection of the first side beam 1 and the second side beam 2. For example, the corner fitting 3 is welded to the first side beam 1 and the second side beam 2 respectively.

[0045] In this embodiment, the corner fitting 3 is connected to the intersection of the first side beam 1 and the second side beam 2. The intersection of the first side beam 1 and the second side beam 2 is the corner of the chassis structure, that is, the corner fitting 3 is arranged at the corner of the chassis structure. The corner of the chassis structure is a position that is easily subjected to impacts and collisions. By arranging the corner fitting 3 here, it helps to better utilize the corner fitting 3 to withstand impacts and collisions, thereby protecting the grounding clip, the chassis structure, the prefabricated cabin, etc. from being damaged.

[0046] In some embodiments provided by the present utility model, at least part of the surface of the grounding member 4 is provided with a protective layer. By providing the protective layer, the corrosion resistance of the grounding member 4 can be improved. Optionally, the protective layer can be set as a conductive paint layer, an electroplated nickel layer, an electroplated tin layer, a hot-pressed nickel sheet layer, a composite stainless steel layer, or a composite copper layer.

[0047] In some embodiments provided by the present utility model, a connection hole 403 is provided on the grounding member 4. The connection hole 403 is used to connect with the fastener 7 of the grounding wire. That is, the fastener 7 is connected to the connection hole 403, and the fastener 7 is used to fix the grounding wire. Optionally, the connection hole 403 is set as a threaded hole to facilitate the installation and disassembly of the fastener 7. Of course, the fastener 7 can also be riveted to the connection hole 403.

[0048] In some embodiments provided by the present utility model, a limiting groove 101 is provided on the surface of the first side beam 1 facing away from the center. At least a part of the grounding member 4 is placed in the limiting groove 101, and in the direction perpendicular to the notch orientation of the limiting groove 101, the limiting groove 101 limits the grounding member 4. The direction perpendicular to the orientation of the limiting groove 101 is the direction parallel to the outer surface of the first side beam 1.

[0049] In this embodiment, by providing the limiting groove 101 on the surface of the first side beam 1, on the one hand, when installing the grounding member 4, it is only necessary to place the grounding member 4 in the limiting groove 101, which is convenient for determining the installation position of the grounding member 4 and reduces the installation difficulty of the grounding member 4. On the other hand, it makes the positions of the grounding members 4 of each prefabricated cabin more consistent. On the third hand, through the limiting cooperation between the limiting groove 101 and the grounding member 4, the limiting groove 101 can bear the load parallel to the outer surface of the first side beam 1 received by the grounding member 4, thereby improving the connection strength between the grounding member 4 and the first side beam 1.

[0050] Reference Figures 5 - 8 As shown in the figure, in some embodiments provided by the present utility model, the first side beam 1 is provided as a pipe beam. The limiting groove 101 runs through the first side beam 1 in the thickness direction, and the grounding member 4 is connected to the limiting groove 101 through a sealed conductive structure.

[0051] In this embodiment, by setting the first side beam 1 as a pipe beam, the weight of the first side beam 1 is reduced, achieving a lightweight effect. By making the limiting groove 101 run through the wall of the first side beam 1, a part of the grounding member 4 can be placed into the internal space of the first side beam 1, thereby making full use of the internal space of the first side beam 1. Through the sealed conductive structure, the grounding member 4 can be connected and sealed with the limiting groove 101, avoiding water vapor from entering the inside of the first side beam 1 and causing problems such as internal rust or corrosion of the first side beam 1.

[0052] Optionally, the sealed conductive structure is set as a welding structure, that is, the grounding member 4 is welded to the first side beam 1. Or, the sealed conductive structure is set as a conductive adhesive, that is, the grounding member 4 is bonded to the first side beam 1 through the conductive adhesive.

[0053] Optionally, the connection hole 403 is set as a blind hole to prevent water vapor from entering the inside of the first side beam 1 through the connection hole 403.

[0054] Reference Figures 5 - 6As shown, in some embodiments provided by the present invention, the grounding member 4 exceeds the surface of the first side beam 1 away from the center. In this embodiment, by the grounding member 4 exceeding the outer surface of the first side beam 1, during the installation of the grounding member 4, the portion of the grounding member 4 located outside the first side beam 1 can be conveniently fixed, and then the grounding member 4 and the first side beam 1 are bonded or welded, thereby reducing the difficulty of installing the grounding member 4.

[0055] refer to Figure 6 As shown, in some embodiments provided by the present invention, under the condition that the grounding member 4 extends beyond the surface of the first side beam 1 which deviates from the center, a flange 401 is provided on the portion of the grounding member 4 which extends beyond the first side beam 1, and the flange 401 abuts against the surface of the grounding member 4 which deviates from the center.

[0056] In this embodiment, by providing a flange 401 at the portion of the grounding member 4 that exceeds the first side beam 1, the contact area between the grounding member 4 and the first side beam 1 can be increased. In addition, under the condition that the first side beam 1 is provided with a limiting groove 101, during the installation of the grounding member 4, the grounding member 4 is inserted into the limiting groove 101 until the flange 401 abuts against the first side beam 1, and the grounding member 4 can be installed in place, so that the length of the grounding member 4 entering the limiting groove 101 can be conveniently controlled, the installation difficulty of the grounding member 4 is reduced, and the installation depth of the grounding member 4 is more consistent. In addition, by abutting the flange 401 against the first side beam 1, when the grounding member 4 is impacted, the first side beam 1 can bear most of the load, reduce the load on the connection structure between the grounding member 4 and the first side beam 1, and improve the connection strength between the grounding member 4 and the first side beam 1.

[0057] Optionally, the flange 401 extends along the circumference of the limiting member, thereby providing a better limiting effect for the grounding member 4 .

[0058] Of course, the grounding member 4 is not limited to being beyond the surface of the first side beam 1. For example, Figure 7 and Figure 8 As shown, in other embodiments provided by the present invention, the grounding member 4 does not extend beyond the surface of the first side beam 1 which deviates from the center, that is, the grounding member 4 is flush with the surface of the first side beam 1, or the grounding member 4 is located on the inner side of the surface of the first side beam 1.

[0059] In this embodiment, the grounding member 4 does not extend beyond the surface of the first side beam 1 away from the center, so that the surface of the first side beam 1 can protect the grounding member 4 and reduce the probability of the grounding member 4 being impacted or struck.

[0060] Of course, the limiting groove 101 is not limited to the beam wall that passes through the first side beam 1. Figure 9As shown, in other embodiments provided by the present invention, the first side beam 1 is configured as a tubular beam, and the depth of the limiting groove 101 is less than the wall thickness of the first side beam 1 .

[0061] In this embodiment, the grounding member 4 can be limited by the limiting groove 101 , and the limiting groove 101 does not penetrate the beam wall of the first side beam 1 , so there will be no problem of water vapor entering the interior of the first side beam 1 .

[0062] Optionally, the grounding member 4 is connected to the limiting groove 101 by welding.

[0063] In some embodiments provided by the present invention, the grounding member 4 is configured as a conductive block, and in this configuration, the structure of the grounding member 4 is simple. For example, at least a portion of the conductive block is placed in the limiting groove 101 .

[0064] Of course, the grounding member 4 is not limited to being set as a conductive block. Figure 4 As shown, in other embodiments provided by the present invention, the grounding member 4 is configured as an integrated plate structure. Both sides of the grounding member 4 have folded edges 402, and the folded edges 402 of the grounding member 4 are connected to the first side beam 1. For example, the folded edges 402 can be welded to the first side beam 1.

[0065] In this embodiment, by setting the grounding member 4 as an integrated plate structure, the structure of the grounding member 4 can be simplified and the weight of the grounding member 4 can be reduced. By setting folded edges 402 on both sides of the grounding member 4 and connecting the grounding member 4 to the first side beam 1 through the folded edges 402, the main body of the grounding member 4 can have a certain distance from the first side beam 1. When the fastener 7 is connected to the main body of the grounding member 4, the fastener 7 will not interfere with the first side beam 1, so that the fastener 7 can be installed easily.

[0066] A prefabricated cabin is also provided in an embodiment of the utility model.

[0067] Specifically, the prefabricated cabin includes a top frame structure 6, a surrounding structure 5 and the bottom frame structure described above, which are arranged in sequence from top to bottom. That is, the top frame structure 6, the surrounding structure 5 and the bottom frame structure form a chamber structure.

[0068] It should be noted that the prefabricated cabin includes the chassis structure, which also includes all the above-mentioned advantages of the chassis structure, so it will not be elaborated on.

[0069] An energy storage system is also provided in an embodiment of the utility model.

[0070] Specifically, the energy storage system includes the above-mentioned chassis structure, or the above-mentioned prefabricated cabin, and batteries are placed on the chassis structure. The batteries may be secondary batteries.

[0071] It should be noted that the energy storage system includes a chassis structure, and thus incorporates all of the above-mentioned advantages of the chassis structure. Therefore, no further elaboration will be provided here.

[0072] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A chassis structure, characterized in that, include: A first side beam (1); An angle piece (3), the angle piece (3) being connected to the first side beam (1), the angle piece (3) protruding from a surface of the first side beam (1) away from the center of the chassis structure; A grounding member (4), the grounding member (4) being connected to the first side beam (1); Wherein, in the direction in which the corner piece (3) protrudes from the surface of the first side beam (1), the dimension of the grounding piece (4) protruding from the surface of the first side beam (1) is less than or equal to the dimension of the corner piece (3) protruding from the surface of the first side beam (1), or the grounding piece (4) does not protrude from the surface of the first side beam (1).

2. The underframe structure according to claim 1, characterized in that, A limiting groove (101) is provided on a surface of the first side beam (1) facing away from the center, at least a portion of the grounding member (4) is placed in the limiting groove (101), and the limiting groove (101) limits the grounding member (4) in a direction perpendicular to the notch of the limiting groove (101).

3. The underframe structure according to claim 2, characterized in that, The first side beam (1) is configured as a tubular beam, the limiting groove (101) is provided through the wall thickness direction of the first side beam (1), and the grounding member (4) is connected to the limiting groove (101) via a sealed conductive structure.

4. The underframe structure according to claim 1, characterized in that, The grounding member (4) is provided with a connection hole (403), and the connection hole (403) is used to be connected to a fastener (7) of a grounding wire.

5. The underframe structure according to claim 1, characterized in that, Under the condition that the grounding member (4) extends beyond the surface of the first side beam (1) away from the center, a flange (401) is provided at the portion of the grounding member (4) extending beyond the first side beam (1), and the flange (401) abuts against the surface of the grounding member (4) away from the center.

6. The underframe structure according to claim 2, characterized in that, The first side beam (1) is configured as a tubular beam, and the depth of the limiting groove (101) is less than the wall thickness of the first side beam (1).

7. The underframe structure according to claim 1, wherein, The grounding member (4) is configured as a conductive block; Alternatively, the grounding member (4) is configured as an integrated plate structure, both sides of the grounding member (4) have folded edges (402), and the folded edges (402) of the grounding member (4) are connected to the first side beam (1).

8. The underframe structure according to claim 1, characterized in that, At least part of the surface of the grounding element (4) is provided with a protective layer.

9. A prefabricated cabin, characterized in that, It comprises a top frame structure (6), a surrounding structure (5) and a bottom frame structure as claimed in any one of claims 1 to 8, which are arranged in sequence from top to bottom.

10. An energy storage system, characterized in that, It comprises the chassis structure according to any one of claims 1 to 8, or the prefabricated cabin according to claim 9, wherein batteries are placed on the chassis structure.

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