Energy storage cabin

The present disclosure relates to an energy storage cabin. The energy storage cabin includes a cabin body and a cabin door. The cabin body has an opening and a first accommodation space. The cabin door is disposed at the opening of the cabin body in an openable and closable manner. The cabin door includes an inner door panel, an outer door panel, and a connecting member. The inner door panel is located at an inner side of the outer door panel in a stacking manner. A thermal insulation layer is provided between the inner door panel and the outer door panel. The connecting member penetrates the inner door panel to connect the inner door panel with the outer door panel. A heat insulation pad is sandwiched between the inner door panel and the outer door panel at a position where the connecting member penetrates the inner door panel.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent application No. 202321098520.1 filed on May 9, 2023, the entire disclosure of which is incorporated herein by reference.

FIELD

The present disclosure relates to the field of energy storage technologies, and more particularly, to an energy storage cabin.

BACKGROUND

An energy storage cabin is mainly used to store an energy storage element such as a battery and can also have a temperature control system and a heat dissipation system therein. The battery generates a large amount of heat during charging and discharging. The temperature control system and the heat dissipation system are used to control a temperature in the energy storage cabin, such that a temperature of an environment where the battery is located falls within a predetermined temperature range. However, during an actual operation, the temperature in the energy storage cabin can be uncontrollable.

SUMMARY

An energy storage cabin includes: a cabin body having at least one opening and a first accommodation space for accommodating an energy storage element; and at least one cabin door each disposed at each of the at least one opening of the cabin body in an openable and closable manner. Each of the at least one cabin door includes an inner door panel, an outer door panel, and a plurality of connecting members for connecting the inner door panel with the outer door panel. The inner door panel is located at a side of the outer door panel facing towards the first accommodation space. A thermal insulation layer is provided between the inner door panel and the outer door panel. A heat insulation pad is sandwiched between the inner door panel and the outer door panel at each of the plurality of connecting members.

DESCRIPTION OF REFERENCE NUMERALS OF THE ACCOMPANYING DRAWINGS

DETAILED DESCRIPTION

In order to clarify and explain the above-mentioned objects, features, and advantages of the present disclosure, specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are provided to facilitate full understanding of the present disclosure. However, the present disclosure can be implemented in various manners other than those described herein, and similar improvements can be made by those skilled in the art without contradicting the intent of the present disclosure. Therefore, the present disclosure is not limited by specific embodiments disclosed below.

As illustrated inFIG.1, in some embodiments of the present disclosure, an energy storage cabin10is provided. The energy storage cabin10includes a cabin body11and at least one cabin door12. The cabin body11has a first accommodation space for accommodating an energy storage element. For example, a battery and a temperature control system can be mounted in the first accommodation space. The cabin body11has at least one opening. The at least one cabin door12is disposed at the at least one opening of the cabin body11in an openable and closable manner.

As illustrated inFIG.2toFIG.5, the cabin door12includes an inner door panel122, an outer door panel121, and a plurality of connecting members127for connecting the inner door panel122with the outer door panel121. The inner door panel122is located at a side of the outer door panel121facing towards the first accommodation space. A thermal insulation layer125is provided between the inner door panel122and the outer door panel121. A heat insulation pad126is sandwiched between the inner door panel122and the outer door panel121at each connecting member127.

In the energy storage cabin10provided in the above solution, the cabin door12includes the inner door panel122and the outer door panel121. Also, the thermal insulation layer125is provided between the inner door panel122and the outer door panel121. Further, the heat insulation pad126is sandwiched at a position where the inner door panel122and the outer door panel121are connected by the connecting member127. In this way, the inner door panel122is in no direct contact with the outer door panel121. A thermal conductivity of the thermal insulation layer125is smaller than a thermal conductivity of the inner door panel122and a thermal conductivity of the outer door panel121. Similarly, a thermal conductivity of the heat insulation pad126is smaller than the thermal conductivity of the inner door panel122and the thermal conductivity of the outer door panel121. Since heat transfer between an inside of the cabin door12and an outside of the cabin door12needs to pass through the thermal insulation layer125or the heat insulation pad126, the cabin door12as a whole has a relatively low thermal conductivity. Therefore, a quantity of heat/refrigeration in the first accommodation space can be stored for a long time, and a probability that a quantity of heat/refrigeration outside the energy storage cabin10is transferred to the first accommodation space through the cabin door12is greatly reduced, such that a temperature in the energy storage cabin10can be accurately controlled.

As illustrated inFIG.2, in some embodiments, the heat insulation pad126has an annular closed structure. The heat insulation pad126corresponding to an outer periphery of the inner door panel122is tightly pressed between the outer door panel121and an outer periphery of the inner door panel122. The connecting member127penetrates the outer periphery of the inner door panel122, the heat insulation pad126, and the outer door panel121to connect the inner door panel122, the heat insulation pad126, and the outer door panel121together.

The annular closed structure is a structure connected end-to-end and capable of forming a closed space, such as a frame structure formed in a polygonal shape and a circular element.

Further, in some embodiments, as illustrated inFIG.2toFIG.5, a fixation frame123is provided at the side of the outer door panel121facing towards the first accommodation space. The connecting member127penetrates the inner door panel122and the fixation frame123in an arrangement direction from the inner door panel122to the outer door panel121to connect the inner door panel122with the outer door panel121. The heat insulation pad126has an annular closed structure in a shape corresponding to a shape of the fixation frame123. The heat insulation pad125is sandwiched between the fixation frame123and an outer periphery of the inner door panel122. The fixation frame123provides an elevation, such that a thickness of a space between the inner door panel122and the outer door panel121meets a requirement of the thermal insulation layer125. The overall thermal conductivity of the cabin door12is greatly reduced when a thickness of the thermal insulation layer125meets a thermal insulation and heat preservation requirement.

In other embodiments, the connecting member127can directly penetrate the inner door panel122and the outer door panel121to connect the inner door panel122and the outer door panel121together.

After the fixation frame123is provided at the side of the outer door panel121facing towards the first accommodation space, the inner door panel122and the outer door panel121are indirectly connected together through the fixation frame123. In this case, the connecting member127and the outer door panel121have no need to be in direct contact. On the one hand, there is no trace of mounting of the connecting member127at an outer side surface of the cabin door12. On the other hand, heat between the inner door panel122and the outer door panel121is kept from being transferred simply through the connecting member127, further reducing a heat transfer efficiency.

In some embodiments, as illustrated inFIG.4andFIG.5, the fixation frame123includes two first supporting members1231that are opposite to each other in a length direction of the cabin door12and two second supporting members1232that are opposite to each other in a width direction of the cabin door12. The two first supporting members1231and the two second supporting members1232are connected end-to-end in sequence to form the fixation frame123corresponding to the outer periphery of the inner door panel122. As illustrated inFIG.5andFIG.6, each of the first supporting member1231and the second supporting member1232includes a bottom wall and two side walls. The two side walls are located between the bottom wall and the outer door panel. The two side walls, the bottom wall, and the outer door panel121enclose to form a second accommodation space1233. The connecting member127is connected to the inner door panel122and the bottom wall. At least part of the connecting member127is accommodated in the second accommodation space1233. The heat insulation pad126is sandwiched between the bottom wall and the outer periphery of the inner door panel122.

In some embodiments, the connecting member127includes a screw. The screw is partially located in the second accommodation space1233when connecting the fixation frame123with the inner door panel122.

The fixation frame123can be welded to the outer door panel121. For example, two side walls of each of the first supporting member1231and the second supporting member1232can be welded to the outer door panel121.

Further, as illustrated inFIG.4andFIG.5, in some embodiments, a middle part of the inner door panel122protrudes relative to the outer periphery of the inner door panel122by a height of H2in a direction away from the outer door panel121. Therefore, a groove is formed at a side of the inner door panel122facing towards the outer door panel121. The groove can accommodate the thermal insulation layer125. When the inner door panel122is filled with the thermal insulation layer125, the groove can define a region filled with the thermal insulation layer125.

As illustrated inFIG.6, the fixation frame123has a thickness of H1. The heat insulation pad126has a thickness of d. A distance H is formed between the middle part of the inner door panel122and the outer door panel121, where H=H1+H2+d. When the outer periphery of the inner door panel122is connected to the fixation frame123, a distance between the middle part of the inner door panel122and the outer door panel121is relatively large, and thus the thermal insulation layer125provided between the inner door panel122and the outer door panel121has a heat preservation and thermal insulation capacity meeting a requirement of the energy storage cabin10.

Further, as illustrated inFIG.2, in some embodiments, each of the plurality of connecting members127is a fastener, such as a screw, a rivet, an elastic fitting member, or the like. The plurality of fasteners is evenly arranged at intervals in a peripheral direction of the fixation frame123. The entire fixation frame123is locked together with the inner door panel122, and thus the fixation frame123and the inner door panel122are reliably connected to each other.

Furthermore, as illustrated inFIG.3toFIG.5, in some embodiments, a side surface of the inner door panel122facing towards the outer door panel121is provided with a plurality of reinforcing ribs124arranged at intervals. Each reinforcing rib124is located between the inner door panel122and the outer door panel121. In particular, the reinforcing rib124can be welded to the inner door panel122. The reinforcing rib124provided at an outer side surface of the inner door panel122effectively improve a strength of the cabin door12.

In an embodiment, as illustrated inFIG.4andFIG.5, a length direction of each reinforcing rib124is consistent with a width direction of the corresponding cabin door12. In another exemplary embodiment of the present disclosure, the reinforcing rib124can be arranged in other directions, which is not limited in the present disclosure.

In some embodiments, as illustrated inFIG.4andFIG.5, each reinforcing rib124is inserted into the thermal insulation layer125. The reinforcing rib124inserted into the thermal insulation layer125not only improves the strength of the cabin door12, but also avoid heat conduction through the reinforcing rib124.

As illustrated inFIG.5, in some embodiments, the reinforcing rib124includes a connection portion1241and an extension portion1242that are connected to each other to form a structure with an L-shaped cross section. The connection portion1241is connected to the inner door panel122. The extension portion1242protrudes towards the outer door panel121.

Further, in particular, in some embodiments, the thermal insulation layer125is a rock wool board provided between the inner door panel122and the outer door panel121. Thermal insulation properties of rock wool enables a low efficiency of energy transfer between a space inside the energy storage cabin10and a space outside the energy storage cabin10, which in turn allows for accurate temperature control of the space inside the energy storage cabin10.

As illustrated inFIG.1andFIG.3, in some embodiments, the outer door panel121is hinged to the cabin body11, and the cabin door12is openable and closable at the opening of the cabin body11. The cabin door12is hingedly connected to the cabin body11for easy opening and closing. A plurality of hinge positions can be formed at a longitudinally distributed sideline of the outer door panel121, for allowing the outer door panel121to be hinged to the cabin body11.

As illustrated inFIG.1, in some embodiments, the cabin body11has a plurality of first accommodation spaces and a plurality of openings. Each of the plurality of first accommodation spaces corresponds to one of the plurality of openings. Each of the plurality of openings is provided with one cabin door12. The plurality of first accommodation spaces can hold energy storage elements such as batteries and provides a large storage space. A temperature control system can be provided in the first accommodation space and configured to control a temperature in the first accommodation space.

In the description of the present disclosure, it should be understood that, the orientation or the position indicated by terms such as “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “over”, “below”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “anti-clockwise”, “axial”, “radial”, and “circumferential” should be construed to refer to the orientation and the position as shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure.

In addition, the terms “first” and “second” are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features associated with “first” and “second” may explicitly or implicitly include at least one of the features. In the description of the present disclosure, “plurality” means at least two, unless otherwise specifically defined.

In the present disclosure, unless otherwise clearly stipulated and limited, terms such as “install”, “connect”, “connect to”, “fix” and the like should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection or connection as one piece; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate; internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above-mentioned terms in the present disclosure can be understood according to specific circumstances.

In the present disclosure, unless expressly specified and defined otherwise, the first feature “on” or “under” the second feature may mean that the first feature is in direct contact with the second feature, or the first and second features are in indirect contact through an intermediate. Moreover, the first feature “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply mean that the level of the first feature is higher than that of the second feature. The first feature “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply mean that the level of the first feature is smaller than that of the second feature.

It should be noted that when an element is described as being “fixed to” or “arranged on” another element, it may be directly on the other element or an intermediate element may exist between the elements. When an element is interpreted as being “connected” to another element, it may be directly connected to the other element or an intermediate element may exist between the elements. As used herein, the terms “vertical”, “horizontal”, “over”, “below”, “left”, and “right” and similar expressions are used for illustrative purposes only and are not meant to be the only means of implementation.

Technical features in the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no conflict between the technical features, any combination of technical features in the above embodiments should be considered as falling within the scope of the present disclosure.

While several embodiments of the present disclosure have been described above in a specific and detailed manner, the protection scope of the present disclosure cannot be construed as being limited to these embodiments. It should be noted that, those skilled in the art can make various variants and improvements without departing from the concept of the present disclosure, and these variants and improvements shall fall within the protection scope of present disclosure as defined by the claims as appended.