Chassis and energy storage container

Abstract

The application provides a chassis and an energy storage container. The chassis comprises bottom side beams, a bottom plate, middle longitudinal beams and a floor. The bottom side beams extend along the length direction of the chassis, and two parallel bottom side beams are arranged on the left and right sides of the chassis. The bottom plate is connected between the two bottom side beams, and the middle longitudinal beams extend along the length direction of the chassis and are located at the middle position in the width direction of the chassis. The floor is arranged between the middle longitudinal beams and the bottom side beams and above the bottom plate. The middle longitudinal beam comprises a first beam, a web plate and a second beam. The first beam is fixedly connected to the bottom plate. The web plate is arranged along the height direction of the chassis. The lower end of the web plate is connected to the first beam. The web plate is provided with a through hole extending along the width direction. The second beam is connected to the upper end of the web plate, and the top of the second beam exceeds the floor by a predetermined height. The middle longitudinal beam can improve the strength of the chassis, thereby improving the carrying capacity of the energy storage container. The through hole arranged on the web plate can realize wiring on both sides of the web plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage containers, and more particularly to a chassis and an energy storage container. BACKGROUND

[0002] In order to improve the overall rigidity and strength of the box body and reduce the deformation of the box body, the bottom side beams are generally made higher and thicker, and the middle bottom beams are increased. The above measures result in increased steel consumption, high processing cost, heavy box body, increased total weight of the cabin (overlength for highway transportation, overweight for sea transportation, sharply increased transportation cost, and smaller rated load.

[0003] The energy storage container has no side plate, and the rigidity of the box body is insufficient. Under the same weight, the energy storage container cannot meet the load requirement of the battery fixing equipment, and the chassis of the container deforms greatly.

[0004] In order to overcome the problem of large deformation of the chassis, the related art selects to increase a reinforcing structure in the middle of the box body. For example, in the patent “ZL202023145643.5”, a reinforcing member connecting the top and the bottom is added in the box body to improve the structural strength of the side opening door container and reduce the deformation under heavy load. However, such a design will result in increased steel consumption, heavy box body, and increased total weight. In addition, the box body structure is complex, the reinforcing member occupies space, and the installation of the energy storage equipment is affected.

[0005] Therefore, it is necessary to provide a chassis and an energy storage container to at least partially solve the above problems. SUMMARY

[0006] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiment section. The summary section of the present application does not mean to attempt to limit the key features and necessary technical features of the claimed technical solution, nor to determine the protection scope of the claimed technical solution.

[0007] To at least partially solve the above problems, the first aspect of the present application provides a chassis for a container, the chassis comprising:

[0008] bottom side beams extending along the length direction of the chassis, two of the bottom side beams being arranged on the left and right sides of the chassis;

[0009] a bottom plate connected between the two bottom side beams;

[0010] a middle longitudinal beam extending along the length direction of the chassis and located at the middle position in the width direction of the chassis; and

[0011] a floor plate arranged between the intermediate longitudinal beam and the bottom side beam and above the bottom plate;

[0012] wherein the intermediate longitudinal beam comprises:

[0013] a first beam fixedly connected to the bottom plate;

[0014] a web plate arranged along a height direction of the chassis, a lower end of the web plate being connected to the first beam, the web plate being provided with a through hole extending along the width direction; and

[0015] a second beam connected to an upper end of the web plate, a top of the second beam being higher than the floor plate by a predetermined height.

[0016] Optionally, the first beam is configured as a square tube or a flat plate.

[0017] The second beam is configured as a square tube or a flat plate.

[0018] Optionally, the through hole comprises a weight-reducing hole and / or a threading hole.

[0019] Optionally, the chassis further comprises a first end beam and a second end beam, two ends of the bottom side beam being fixedly connected to the first end beam and the second end beam, respectively.

[0020] Two ends of the first beam are fixedly connected to the first end beam and the second end beam, respectively.

[0021] Optionally, the length of the second beam is less than the length of the first beam.

[0022] Optionally, the chassis further comprises a first bottom cross beam, a plurality of the first bottom cross beams being arranged between the bottom side beam and the intermediate longitudinal beam at intervals along the length direction.

[0023] Optionally, the chassis further comprises a first end beam and a second end beam, two ends of the bottom side beam being fixedly connected to the first end beam and the second end beam, respectively.

[0024] The chassis further comprises a second bottom cross beam, the second bottom cross beam being located between the first end beam and the second end beam, and the second bottom cross beam being connected between two of the bottom side beams.

[0025] One end of the intermediate longitudinal beam is connected to one of the first end beam and the second end beam, and the other end of the intermediate longitudinal beam is connected to the second bottom cross beam.

[0026] Optionally, the intermediate longitudinal beam is provided with a reinforcing plate at a position where the intermediate longitudinal beam is connected to the first bottom cross beam.

[0027] Optionally, a connecting portion is arranged on the reinforcing plate, and the connecting portion is located above the floor.

[0028] Optionally, a first support is arranged on a side of the second beam facing the bottom side beam, and the first support is located above the connecting portion.

[0029] A second support is arranged on a side of the web plate facing the bottom side beam, and the second support is located below the connecting portion.

[0030] Optionally, a first storage space is formed between the bottom plate and the floor, and a heat preservation material is arranged in the first storage space; and / or

[0031] The floor is arranged to be inclined downward from the middle longitudinal beam along the width direction.

[0032] A second aspect of the present application is an energy storage container, which comprises:

[0033] A chassis, wherein the chassis comprises the chassis according to the present application;

[0034] A battery rack, wherein the battery rack is located in the container and connected to the chassis; and

[0035] A control box bracket, wherein the control box bracket is connected to the battery rack and the middle longitudinal beam, the control box bracket is located on both sides of the middle longitudinal beam and above the floor;

[0036] The battery rack forms a second storage space above the middle longitudinal beam, and the second storage space is used for storing energy storage batteries.

[0037] A third storage space is formed between the control box bracket, the battery rack and the middle longitudinal beam, and the third storage space is used for storing a control box of the energy storage batteries, and when the control box is stored in the control box bracket, the top of the control box does not exceed the top surface of the second beam.

[0038] Optionally, the battery rack comprises a battery rack column, the battery rack column extends along the height direction, the bottom end of the battery rack column is fixedly connected to the chassis, and the middle longitudinal beam is provided with a reinforcing plate.

[0039] The control box bracket extends along the width direction, and both ends of the control box bracket are connected to the battery rack column and the reinforcing plate, respectively.

[0040] Optionally, the container comprises:

[0041] A battery cabin, wherein the battery rack is located in the battery cabin; and

[0042] A device cabin is located at one end of the length direction;

[0043] The web plate is provided with a notch near the device cabin, and the notch is above the floor.

[0044] Optionally, the energy storage container further comprises:

[0045] A water baffle is located above the control box bracket, the water baffle is connected to the second beam and the battery rack, and the control box is stored between the water baffle and the control box bracket.

[0046] A wiring board is located below the control box bracket, and the wiring board is connected to the web plate and the battery rack.

[0047] The second beam is provided with a first support for connecting the water baffle, and the web plate is provided with a second support for connecting the wiring board.

[0048] The present application provides a chassis and an energy storage container, the chassis comprises a middle longitudinal beam, the middle longitudinal beam comprises a first beam, a web plate and a second beam, the first beam is fixedly connected to a bottom plate, the web plate is arranged along the height direction of the chassis, the lower end of the web plate is connected to the first beam, the web plate is provided with a through hole extending in the width direction, the second beam is connected to the upper end of the web plate, and the top of the second beam exceeds the floor by a predetermined height. The middle longitudinal beam can improve the strength of the chassis, improve the carrying capacity of the energy storage container, and the through hole arranged on the web plate can realize wiring on both sides of the web plate. BRIEF DESCRIPTION OF DRAWINGS

[0049] The following drawings for the embodiments of the present application are hereby incorporated into the present application as a part of the present application for the purpose of understanding the present application. The embodiments of the present application and the description thereof shown in the drawings are used to explain the principles of the present application. In the drawings,

[0050] Figure 1 It is a schematic diagram of the three-dimensional structure of the chassis according to a preferred embodiment of the present application;

[0051] Figure 2 It is Figure 1 It is a schematic diagram of a cross-sectional structure of the chassis in the width direction;

[0052] Figure 3 It is Figure 2 It is a schematic diagram of the enlarged structure at point A in the middle;

[0053] Figure 4 It is a schematic diagram of the structure of the chassis according to Figure 1 when applied to an energy storage container;

[0054] Figure 5 It is a schematic diagram of the structure of the chassis according to Figure 4Structure diagram of the chassis as viewed along the center line B-B;

[0055] Figure 6 Structure diagram of the energy storage container according to a preferred embodiment of the present application;

[0056] Figure 7 Structure diagram of the energy storage container according to Figure 6 Structure diagram of the energy storage container in the chassis position, wherein the control box is shown; and

[0057] Figure 8 Structure diagram of the energy storage container according to Figure 6 Structure diagram of the energy storage container according to

[0058] Explanation of reference numerals:

[0059] 100: Energy storage container 110: Container body

[0060] 110A: Battery cabin 110B: Equipment cabin

[0061] 111: Chassis 112: Base plate

[0062] 113: Bottom side beam 114: First bottom cross beam

[0063] 115: First end beam 116: Second end beam

[0064] 117: Floor 118: Floor drain

[0065] 119: Drainage pipeline 120: Middle longitudinal beam

[0066] 121: First beam 122: Web plate

[0067] 122A: Thread hole 122B: Weight-reducing hole

[0068] 122C: Notch 123: Second beam

[0069] 124: First support 125: Second support

[0070] 126: Reinforcing plate 126A: Connecting portion

[0071] 131: Side door 132: Ventilation plate

[0072] 133: Top plate 134: Top side beam

[0073] 135: Water baffle 136: Wiring board

[0074] 137: Support column 140: Battery rack

[0075] 141: Support frame 141A: Top cross beam

[0076] 141B: first upright 141C: second upright

[0077] 142: battery bracket 143: control box bracket

[0078] 151: first storage space 152: second storage space

[0079] 153: third storage space 161: cable

[0080] 162: control box D1: length direction

[0081] D2: width direction D3: height direction

[0082] F: top surface of second beam DETAILED DESCRIPTION

[0083] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures have not been described in detail in order to avoid obscuring the application.

[0084] To thoroughly understand the present application, a detailed description of the structure will be presented in the following description. It is apparent that the implementation of the present application is not limited to the special details set forth herein, as specific details are presented for the purpose of providing a thorough description of certain embodiments of the application. The preferred embodiments of the present application are described in detail below, however, the present application can also have other embodiments, which should not be interpreted as limited to the embodiments presented here.

[0085] It is to be understood that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the present application, and the singular forms "a," "an," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in the specification, it is meant that there are the described features, integers, steps, operations, elements, and / or components, but not excluding the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or a combination thereof. The terms "upper," "lower," "front," "rear," "left," "right," and similar terms as used herein are for the purpose of illustration only and not as limitations.

[0086] The ordinal numbers such as "first" and "second" cited in the present application are merely identifiers and have no other meaning, such as a specific order, etc. Also, for example, the term "first component" does not by itself imply the existence of a "second component", nor does the term "second component" by itself imply the existence of a "first component".

[0087] Hereinafter, a specific embodiment of the present application will be described in more detail with reference to the accompanying drawings, which show a representative embodiment of the present application and are not limiting the present application.

[0088] As shown in Figures 1 to 8 , the present application provides a chassis 111 and an energy storage container 100 with the chassis 111, wherein the chassis 111 is provided with a middle longitudinal beam 120 at the middle of the width direction D2, which can better improve the structural strength of the energy storage container 100, and is especially suitable for the energy storage container 100 with side opening doors.

[0089] First, the structure of the chassis 111 of the present application will be introduced below in combination with the drawings.

[0090] Referring to Figures 1 to 3 , the chassis 111 includes a bottom side beam 113, a bottom plate 112, a middle longitudinal beam 120 and a floor 117. The bottom side beam 113 extends along the length direction D1 of the chassis 111, and two bottom side beams 113 parallel to each other are arranged on the left and right sides of the chassis 111. The bottom plate 112 is connected between the two bottom side beams 113. The middle longitudinal beam 120 extends along the length direction D1 of the chassis 111 and is located at the middle position of the width direction D2 of the chassis 111. The floor 117 is arranged between the middle longitudinal beam 120 and the bottom side beam 113 and above the bottom plate 112.

[0091] The middle longitudinal beam 120 includes a first beam 121, a web 122 and a second beam 123. As shown in Figure 2 , the first beam 121 is fixedly connected to the bottom plate 112. The web 122 is arranged along the height direction D3 of the chassis 111, and the lower end of the web 122 is connected to the first beam 121. The second beam 123 is connected to the upper end of the web 122, and the top of the second beam 123 exceeds the floor 117 by a predetermined height. The web 122 is provided with a through hole extending along the width direction D2, which facilitates wiring on both sides of the web 122.

[0092] The chassis 111 of the present application effectively improves the structural strength of the chassis 111 by arranging the middle longitudinal beam 120, and the through hole arranged on the web 122 of the middle longitudinal beam 120 does not affect the use of space.

[0093] Referring to Figure 1In the embodiment, the chassis 111 further comprises a first bottom cross beam 114, a first end beam 115 and a second end beam 116. The first bottom cross beam 114 is arranged at intervals along the length direction D1, and is connected to the bottom side beam 113 and the intermediate longitudinal beam 120. As shown in Figure 1 The first bottom cross beam 114 extends along the width direction D2. The first end beam 115 and the second end beam 116 are arranged at the two ends of the length direction D1 of the chassis 111, respectively. The two ends of the bottom side beam 113 are fixedly connected to the first end beam 115 and the second end beam 116, respectively, forming an outer frame body of the chassis 111. The two ends of the first beam 121 are fixedly connected to the middle part of the first end beam 115 and the middle part of the second end beam 116, respectively, and the two ends of the first bottom cross beam 114 are fixedly connected to the intermediate longitudinal beam 120 and the bottom side beam 113, respectively. Specifically, the two ends of the first bottom cross beam 114 are connected to the first beam 121 and the bottom side beam 113, respectively. The intermediate longitudinal beam 120, the bottom side beam 113, the end beam and the first bottom cross beam 114 are connected as a whole, which plays a role in improving the structural strength of the chassis 111.

[0094] Referring to Figures 1 to 3 The floor 117 is arranged between the first bottom cross beam 114, the intermediate longitudinal beam 120 and the bottom side beam 113. Preferably, the floor 117 is configured to be arranged downwardly inclined from the intermediate longitudinal beam 120 along the width direction D2. A drain 118 and a drainage pipe 119 are arranged at the position of the floor 117 close to the bottom side beam 113. The drainage pipe 119 is arranged between the bottom plate 112 and the floor 117, and the drainage pipe 119 passes through the bottom side beam 113 to drain water outside the box body 110. The inclined floor 117 is conducive to the flow of liquid (waste liquid that may be generated in the box body 110 during use of the energy storage container 100, such as condensate water and cooling liquid) along the surface of the floor 117 to the drain 118 and then to the drainage pipe 119.

[0095] In order to further improve the structural strength of the chassis 111, the intermediate longitudinal beam 120 is provided with a reinforcing plate 126 at the connection position with the first bottom cross beam 114. Referring to Figures 1 to 4 The reinforcing plate 126 is a bent plate, and its cross section is C-shaped. As shown in Figure 2 The reinforcing plate 126 is connected between the first beam 121, the web 122 and the second beam 123.

[0096] Figure 2In the illustrated embodiment, the first beam 121 and the second beam 123 are configured as square tubes. The web 122 is connected to the first beam 121 and the second beam 123 and forms the H-shaped intermediate longitudinal beam 120. The first beam 121 and the second beam 123 are "wing" structures of the H-shaped intermediate longitudinal beam 120. The H-shaped intermediate longitudinal beam 120 can enhance the bending resistance of the chassis 111, and the square tube can further improve the bending resistance of the chassis 111. Specifically, the web 122 is welded to the first beam 121 and the second beam 123.

[0097] In other embodiments not shown in the present application, the first beam 121 and the second beam 123 can also be plate-shaped. For example, the first beam 121 and the second beam 123 are configured as flat plates parallel to the floor 112, and the web 122 is connected to the first beam 121 and the second beam 123 to form the H-shaped intermediate longitudinal beam 120. The structure of the intermediate longitudinal beam 120 can be flexibly adjusted according to actual needs.

[0098] When the first beam 121 is a square tube structure, the first bottom cross beam 114 can be fixedly connected to the first beam 121 and the bottom side beam 113. In the present embodiment, the first bottom cross beam 114 and the first beam 121 are both square tube structures and have similar sizes, and the floor 117 can be, for example, welded between the first bottom cross beam 114, the first beam 121, and the bottom side beam 113. The first bottom cross beam 114 can also be an I-beam or a channel steel structure.

[0099] When the first beam 121 is a flat plate structure, one end of the first bottom cross beam 114 is connected to the bottom side beam 113, and the other end of the first bottom cross beam 114 can be connected to the first beam 121 and the web 122.

[0100] In the present application, the through holes provided on the web 122 include weight-reducing holes 122B and threading holes 122A. It can be understood that the weight-reducing holes 122B and the threading holes 122A can reduce the weight of the intermediate longitudinal beam 120. As shown in Figure 4 and Figure 5 As shown, along the length direction D1, the weight-reducing holes 122B and the threading holes 122A are alternately arranged at intervals. The size of the weight-reducing hole 122B is smaller than the size of the threading hole 122A. The weight-reducing hole 122B can also be used for wiring. The size and number of the threading holes 122A can be determined according to actual needs, and only the threading holes 122A (or the weight-reducing holes 122B) can be provided.

[0101] Referring to Figures 4 to 8 The energy storage container 100 of the present application includes a container body 110, a battery rack 140, and a control box bracket 143. The container body 110 includes a chassis 111. The container body 110 can also include a stand, a wall plate, a container door, a top frame, a top plate 133, and the like connected to the chassis 111.

[0102] The space formed by the box body 110 is divided into an equipment cabin 110B and a battery cabin 110A along the length direction D1. The battery rack 140 is located in the battery cabin 110A in the box body 110. Referring to Figure 1 and Figure 5 The equipment cabin 110B is arranged on one side close to the second end beam 116.

[0103] In the embodiment, the battery rack 140 is connected to the base frame 111. The control box bracket 143 is located above the floor 117 and on both sides of the middle longitudinal beam 120. That is, the height distance of the middle longitudinal beam 120 beyond the floor 117 is greater than the height of the control box 162. It can be understood that arranging the control box bracket 143 above the floor 117 can avoid moisture entering the control box 162, and the safety is higher.

[0104] The battery rack 140 is formed with a second storage space 152 above the middle longitudinal beam 120 for storing energy storage batteries. The control box bracket 143 is connected to the battery rack 140 and the middle longitudinal beam 120, and a third storage space 153 is formed between the control box bracket 143, the battery rack 140 and the middle longitudinal beam 120 for storing the control box 162 of the energy storage battery. When the control box 162 is stored in the control box bracket 143, the top of the control box 162 does not exceed the top surface F of the second beam 123. The control box 162 transmits the load to the middle longitudinal beam 120 through the control box bracket 143.

[0105] Referring to Figure 6 The battery rack 140 stores energy storage batteries in the area above the plane where the top surface F of the second beam 123 is located, and stores the control box 162 in the area below the top surface F of the second beam 123 to the control box bracket 143. The space in the box body 110 is divided into the second storage space 152 and the third storage space 153 in the height direction D3 by the middle longitudinal beam 120, and the third storage space 153 is located below the second storage space 152. The middle longitudinal beam 120 improves the structural strength of the energy storage container 100 while dividing the space in the battery cabin 110A, so that the space in the battery cabin 110A is more reasonably distributed, and the space utilization efficiency of the energy storage container 100 is improved.

[0106] The battery rack 140 includes a battery rack column extending in the height direction D3, and the bottom end of the battery rack column is fixedly connected to the base frame 111. Thus, the battery rack 140 and the base frame 111 are connected as a whole, and the load of the battery rack 140 is transmitted to the base frame 111 through the battery rack column.

[0107] Specifically, in the embodiment, the battery rack 140 comprises a plurality of support frames 141 arranged along the length direction D1, and the support frame 141 comprises a battery rack column. A battery bracket 142 is arranged between two adjacent support frames 141, and the battery bracket 142 is located above the top surface F of the second beam 123. The energy storage battery is placed on the battery bracket 142. A control box bracket 143 is arranged below the battery bracket 142, and the control box bracket 143 can be electrically connected to the whole row of energy storage batteries.

[0108] Referring to Figure 6 , the support frame 141 comprises a top cross beam 141A, a first column 141B and a second column 141C, wherein the top cross beam 141A extends along the width direction D2, and the top cross beam 141A is connected between the two top side beams 134. The first column 141B extends along the height direction D3 and is located at the middle position of the width direction D2, and the two ends of the first column 141B are connected to the top cross beam 141A and the second beam 123 respectively.

[0109] Preferably, the size of the first column 141B is larger than the size of the second column 141C, and correspondingly, the structural strength of the first column 141B is larger than the structural strength of the second column 141C. The size of the second beam 123 in the width direction D2 is adapted to the first column 141B. The position of the first column 141B corresponds to the position of the reinforcing plate 126. Referring to Figures 1 to 4 , two reinforcing plates 126 are symmetrically arranged on both sides of the web plate 122.

[0110] The second column 141C extends along the height direction D3, and the two ends of the second column 141C are connected to the top cross beam 141A and the first bottom cross beam 114 respectively.

[0111] Referring to Figure 6 and Figure 7 , the control box bracket 143 extends along the width direction D2, and the two ends of the control box bracket 143 are connected to the second column 141C and the reinforcing plate 126 respectively. Specifically, the reinforcing plate 126 is provided with a connecting portion 126A located above the floor 117. The control box bracket 143 is fixed to the reinforcing plate 126 by fasteners and the connecting portion 126A. Specifically, the connecting portion 126A can be a connecting hole or a connecting piece. In the embodiment, the reinforcing plate 126 is provided with a connecting hole, and the control box bracket 143 can be fixed to the intermediate longitudinal beam 120 by cooperation of the threaded fastener and the connecting hole.

[0112] The web plate 122 not only separates the two control boxes 162 in the width direction D2 (the control boxes 162 on the left and right sides of the energy storage battery can be isolated in case of fire), but also shields signals to prevent signal interference.

[0113] In the embodiment, referring toFigure 4 、 Figure 5 and Figure 8 The equipment cabin 110B is located at one end of the length direction D1. The equipment cabin 110B is used to place equipment such as liquid cooling devices, air conditioners, fire-fighting devices, and power distribution cabinets. As shown in Figure 8 At one side of the equipment cabin 110B, the wall plate of the energy storage container 100 is partially provided as a ventilation plate 132, facilitating heat exchange between the equipment in the equipment cabin 110B and the outside of the container 110.

[0114] In view of the fact that the chassis 111 of the present application is applied to the energy storage container 100, the part of the intermediate longitudinal beam 120 that exceeds the floor 117 can affect the utilization of the interior space of the container. In an embodiment of the present application, the length of the second beam 123 is preferably less than the length of the first beam 121. Specifically, the length of the second beam 123 is determined according to the length of the battery cabin 110A. The space utilization in the equipment cabin 110B can be unaffected.

[0115] In other embodiments of the present application not shown, the chassis can further include a second bottom cross beam connected between the two bottom side beams, one end of the intermediate longitudinal beam being connected to the second bottom cross beam (middle), and the other end of the intermediate longitudinal beam being connected to the first end beam or the second end beam. It can be understood that the second bottom cross beam is longer than the first bottom cross beam. The first bottom cross beam can be provided in the area where the intermediate longitudinal beam is provided, and the second bottom cross beam can be provided in the area where the intermediate longitudinal beam is not provided, thereby improving the structural strength of the chassis.

[0116] Preferably, the second bottom cross beam can be provided extending along the width direction and at a position between the equipment cabin and the battery cabin. The intermediate longitudinal beam is provided in the battery cabin, which can strengthen the support for the corresponding equipment in the battery cabin. In this scenario, the first beam and the second beam of the intermediate longitudinal beam can be provided with the same length, facilitating the manufacture of the intermediate longitudinal beam and the chassis, and at the same time, not affecting the space of the equipment cabin.

[0117] Preferably, the web plate 122 is provided with a notch 122C at a position close to the equipment cabin 110B, the notch 122C being located above the floor 117. A liquid cooling pipe (not shown) is usually provided in the energy storage container 100 for heat dissipation of the energy storage battery.

[0118] The liquid cooling pipes on both sides of the web plate 122 are gathered to the same side through the gap 122C close to the equipment cabin 110B. For example, in the embodiment, the web plate 122 divides the space in the battery cabin 110A in the width direction D2, the liquid cooling pipes include a main pipe close to the bottom side beam 113 and branch pipes connected to the main pipe, the branch pipes are close to the support frames 141 and extend along the height direction D3. The liquid cooling pipes on both sides in the width direction D2 can be gathered to the same side close to the liquid cooling device in the equipment cabin 110B through the gap 122C. The gap 122C can further reduce the weight of the middle longitudinal beam 120, the gap 122C is located on the side of the web plate 122 close to the equipment cabin 110B, and has little effect on the structural strength of the battery cabin 110A. The gap 122C is above the floor 117, see Figure 5 , the gap 122C is flush with the floor 117, which is convenient for arranging the liquid cooling pipes.

[0119] Referring to Figure 6 and Figure 7 , the energy storage container 100 further includes a water baffle 135 and a wiring plate 136. The water baffle 135 is located above the control box bracket 143 and serves as a water baffle for the control box 162. The wiring plate 136 is located below the control box bracket 143 and facilitates fixing of the cable 161 connected to the control box 162.

[0120] Specifically, the water baffle 135 is connected to the second beam 123 and the battery rack 140, and the control box 162 is stored between the water baffle 135 and the control box bracket 143. Correspondingly, the second beam 123 is provided with a first support 124 for connecting the water baffle 135. The first support 124 is located on the surface of the second beam 123 facing the bottom side beam 113, and the first support 124 is located above the connecting portion 126A.

[0121] The wiring plate 136 is connected to the web plate 122 and the battery rack 140. Correspondingly, the web plate 122 is provided with a second support 125 for connecting the wiring plate 136. The second support 125 is located on the side of the web plate 122 facing the bottom side beam 113, and the second support 125 is located below the connecting portion 126A. In the embodiment, the water baffle 135 is connected to the second beam 123 to transmit the load to the middle longitudinal beam 120 through the first support 124. The wiring plate 136 is connected to the web plate 122, so that the wiring plate 136 supporting / fixed with the cable 161 transmits the load to the web plate 122 through the second support 125.

[0122] The top surface F of the second beam 123 of the intermediate longitudinal beam 120 is higher than the floor 117 by a predetermined height, the wiring board 136, the control box bracket 143 and the water baffle 135 are spaced apart and distributed in the height direction D3, and the space surrounded by the floor 117, the web 122 and the top surface F of the second beam 123 is further divided into a bottom layer, a cable layer and a third storage space 153 from bottom to top. The bottom layer is the area between the wiring board 136 and the floor 117, which can be used to arrange liquid cooling pipes. The wiring layer provides a certain space interval between the control box 162 and the cable 161 and the floor 117, avoiding the influence of condensed water or cooling water on the cable 161, the control box 162 and the energy storage battery, and being safer. The cable layer can be used for wiring, and the cable layer is located between the wiring board 136 and the control box bracket 143. See Figure 5 The threading hole 122A and the weight-reducing hole 122B are both located above the second support 125.

[0123] Preferably, the energy storage container 100 of the present application is a side-opening door energy storage container 100, see Figure 6 and Figure 8 Corresponding to both sides of the length direction D1 of the battery cabin 110A, a door opening is provided, and a side door 131 is provided at the door opening. The side door 131 is movably connected to the box body 110 between the open position of opening the door opening and the closed position of closing the door opening. It is convenient to directly operate the equipment in the battery cabin 110A through the side door 131.

[0124] For example, a plurality of support columns 137 (see Figure 8 ) can be arranged between the top side beam 134 and the bottom side beam 113 along the length direction D1, and the side door 131 is arranged between two adjacent support columns 137.

[0125] Preferably, the support column 137 is arranged at a position corresponding to the arrangement position of the first bottom cross beam 114 (and the top cross beam 141A), which can further improve the structural strength of the energy storage container 100. And through the side door 131, the battery cluster at the corresponding position can be directly contacted.

[0126] The side door 131 can also be configured as an integral structure. The side door 131 can also include at least two doors distributed along the height direction D3. For example, the bottom door can be used to open the third storage space 153, and other doors can be used to open the second storage space 152. This design eliminates the need for internal passageways in traditional energy storage containers. When it is necessary to install / remove equipment (such as batteries) into the container, the side door 131 (or the corresponding door) can be opened directly from outside the container 110 for direct operation. During the use of the energy storage container 100, if it is necessary to inspect or repair the equipment inside the container, the corresponding side door 131 can also be opened directly for operation, improving the efficiency of equipment installation, inspection, and disassembly within the energy storage container 100 and saving internal space. This allows the energy storage container 100 to have more space to store batteries, improving the space utilization rate within the container 110 and increasing the energy density of the energy storage container 100. Those skilled in the art can also flexibly choose the size and form of the side door 131 according to actual conditions.

[0127] like Figure 2 and Figure 3 As shown, a first storage space 151 is formed between the base plate 112 and the floor 117, and insulation material can be installed in the first storage space 151. During the use of the energy storage container 100, the insulation material can prevent excessive moisture condensation due to the large temperature difference between the floor 117 and the outside of the container 110, thus protecting the safety of the energy storage battery, control box 162, and electrical equipment inside the energy storage container 100.

[0128] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0129] This application has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A chassis for a container, characterized in that The chassis comprises: bottom side beams extending along the length direction of the chassis, two of the bottom side beams being arranged on the left and right sides of the chassis in parallel with each other; a bottom plate connected between the two bottom side beams; a middle longitudinal beam extending along the length direction of the chassis and located at the middle position in the width direction of the chassis; a first bottom cross beam connected to the bottom side beams and the middle longitudinal beam; and a floor arranged between the middle longitudinal beam and the bottom side beams and above the bottom plate; The middle longitudinal beam comprises: a first beam fixedly connected to the bottom plate; a web plate arranged along the height direction of the chassis, the lower end of the web plate being connected to the first beam, the web plate being provided with a through hole extending along the width direction; and a second beam connected to the upper end of the web plate, the top of the second beam being above the floor by a predetermined height, The middle longitudinal beam is provided with a reinforcing plate at the connection position with the first bottom cross beam, the reinforcing plate being provided with a connecting portion above the floor; The side of the second beam facing the bottom side beam is provided with a first support above the connecting portion; The side of the web plate facing the bottom side beam is provided with a second support below the connecting portion.

2. The undercarriage of claim 1, wherein, The first beam is configured as a square tube or a flat plate; The second beam is configured as a square tube or a flat plate.

3. The undercarriage of claim 1, wherein, The through hole comprises a weight-reducing hole and / or a threading hole.

4. The undercarriage of claim 1, wherein, The chassis further comprises a first end beam and a second end beam, the two ends of the bottom side beams being fixedly connected to the first end beam and the second end beam, respectively; The two ends of the first beam are fixedly connected to the first end beam and the second end beam, respectively.

5. The undercarriage of claim 4, wherein, The length of the second beam is less than the length of the first beam.

6. The undercarriage according to any one of claims 1 to 5, characterized in that A plurality of first bottom cross beams are arranged between the bottom side beams and the middle longitudinal beam in the length direction.

7. The undercarriage of claim 6, wherein, The chassis further comprises a first end beam and a second end beam, the two ends of the bottom side beams being fixedly connected to the first end beam and the second end beam, respectively; The chassis further comprises a second bottom cross beam located between the first end beam and the second end beam, the second bottom cross beam being connected between the two bottom side beams; One end of the middle longitudinal beam is connected to one of the first end beam and the second end beam, and the other end of the middle longitudinal beam is connected to the second bottom cross beam.

8. The undercarriage of any one of claims 1 to 5, wherein, A first storage space is formed between the bottom plate and the floor, and the first storage space is provided with thermal insulation material; and / or The floor is configured to be arranged downwardly inclined from the middle longitudinal beam along the width direction.

9. An energy storage container, characterized by The energy storage container comprises: a box body comprising the chassis according to any one of claims 1 to 8; a battery rack located in the box body and connected to the chassis; and a control box bracket connected to the battery rack and the middle longitudinal beam, the control box bracket being located on both sides of the middle longitudinal beam and above the floor. The battery rack is formed with a second storage space above the intermediate longitudinal beam for storing energy storage batteries. A third storage space is formed between the control box bracket, the battery rack and the intermediate longitudinal beam for storing a control box of the energy storage batteries, and a top of the control box does not exceed a top surface of the second beam when the control box is stored in the control box bracket.

10. The energy storage container of claim 9, wherein, The battery rack comprises battery rack columns extending in the height direction, and bottom ends of the battery rack columns are fixedly connected to the base frame. The control box bracket extends in the width direction, and two ends of the control box bracket are respectively connected to the battery rack columns and the reinforcing plate.

11. The energy storage container of claim 9, wherein, The box body comprises: a battery cabin in which the battery rack is located; and a device cabin located at one end in the length direction; The web plate is provided with a notch near the device cabin, and the notch is located above the floor.

12. The energy storage container of claim 9, wherein, The energy storage container further comprises: a water baffle located above the control box bracket, the water baffle being connected to the second beam and the battery rack, and the control box being stored between the water baffle and the control box bracket; a wiring board located below the control box bracket, the wiring board being connected to the web plate and the battery rack; the second beam is provided with a first support for connecting the water baffle, and the web plate is provided with a second support for connecting the wiring board.

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