Energy storage container and energy storage system

Abstract

The embodiment of the utility model relates to the field of energy storage equipment, and provides an energy storage container and an energy storage system.The energy storage container comprises a container body and an exhaust fan, a battery bin, a flow guide air duct and a power distribution bin are arranged in the container body, the power distribution bin is provided with an air outlet, and the exhaust fan is arranged at the air outlet; the flow guide air duct is located in the power distribution bin, the air outlet and the battery bin are located on the two opposite sides of the flow guide air duct respectively, and the flow guide air duct is used for communicating the battery bin with the air outlet. According to the invention, the discharge efficiency of combustible gas in the battery compartment can be improved, so that the probability of fire in the battery compartment is reduced.

Description

Technical Field

[0001] The present application relates to the field of energy storage equipment, and in particular to an energy storage container and an energy storage system. Background Art

[0002] Currently, energy storage containers are mainly used to supply power to DC loads. When the energy storage container is working, the battery packs in its battery compartment generate electrical energy through chemical reactions.

[0003] In the related art, an air vent communicating with the battery compartment is usually provided on the outer wall of the box body of the energy storage container so that the gas in the battery compartment can be discharged to the outside atmosphere through the air vent.

[0004] However, the inventors realized that in actual use, when a battery pack leaks and flammable gases such as hydrogen and carbon monoxide are present in the battery compartment, the efficiency of using vents to discharge the flammable gases from the battery compartment is low. If too much flammable gas accumulates, it may cause more serious accidents. Utility Model Content

[0005] One or more embodiments of the present application provide an energy storage container and an energy storage system to solve or at least partially alleviate the problem of low combustible gas exhaust efficiency in a battery compartment in the related art.

[0006] In a first aspect of the present application, an energy storage container is provided, which adopts the following technical solution:

[0007] An energy storage container comprises a box body and an exhaust fan, wherein a battery compartment, a guide air duct and a power distribution compartment are arranged inside the box body, the power distribution compartment has an air outlet, the exhaust fan is arranged at the air outlet, the guide air duct is located inside the power distribution compartment, the air outlet and the battery compartment are respectively located on opposite sides of the guide air duct, and the guide air duct is used to connect the battery compartment and the air outlet.

[0008] By adopting the above technical solution, when there is flammable gas inside the battery compartment, the exhaust fan at the air outlet can be started. Since the guide channel connects the battery compartment and the air outlet, the exhaust fan can quickly extract the flammable gas inside the battery compartment, thereby reducing the concentration of the flammable gas inside the battery compartment; moreover, since the air outlet and the battery compartment are respectively located on opposite sides of the guide air duct, the flammable gas does not need to change direction too much when flowing in the guide channel, which further facilitates the exhaust fan to quickly extract the flammable gas inside the battery compartment, and ultimately improves the exhaust efficiency of the flammable gas in the battery compartment, so as to reduce the probability of fire inside the battery compartment.

[0009] In one of the embodiments, the air guide duct includes a first partition, which is arranged inside the power distribution compartment and is combined with the inner wall of the power distribution compartment and the outer wall of the battery compartment to form the air guide duct.

[0010] In one of the embodiments, the battery compartment has a through hole connected to the air guide duct, and along the air outlet direction of the air guide duct, the air outlet is arranged opposite to the through hole.

[0011] In one embodiment, the air outlet is arranged at the upper end portion of one end of the power distribution compartment; the battery compartment has an air inlet connected to the outside, and the air inlet is located at the lower end portion of the battery compartment away from the power distribution compartment.

[0012] In one of the embodiments, a power distribution compartment is further provided inside the box body, the box body includes a box door for opening the power distribution compartment, the box door is provided with the air outlet, and one end of the first partition facing the box door is sealed with the box door.

[0013] In one of the embodiments, a skirt is provided on an edge of one end of the first partition facing the door, and the skirt is used for sealingly fitting with the door.

[0014] In one of the embodiments, the energy storage container further includes a sealing member, wherein the sealing member is used to be arranged between the container door and the skirt.

[0015] In one of the embodiments, the energy storage container further includes a liquid cooling unit and a liquid cooling battery pack. A liquid cooling unit compartment is further provided inside the container body. The liquid cooling unit is arranged in the liquid cooling unit compartment and is used to provide flowing refrigerant to the liquid cooling battery pack through a pipeline.

[0016] In a second aspect of the present application, an energy storage system is provided, which adopts the following technical solution:

[0017] An energy storage system comprises the energy storage container as described above.

[0018] In one of the embodiments, the energy storage system includes a plurality of the energy storage containers, and at least two of the energy storage containers form a group and are arranged back to back. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0020] Figure 1 A partial schematic diagram of an energy storage container according to some embodiments of the present application Figure 1 .

[0021] Figure 2 A partial schematic diagram of an energy storage container according to some embodiments of the present application Figure 2 .

[0022] Figure 3 It is a schematic diagram of the structure of pipelines according to some embodiments of the present application.

[0023] Figure 4 It is a schematic diagram of the layout of two energy storage containers according to some embodiments of the present application.

[0024] In the figure: 1. box body; 11. air outlet; 12. battery compartment; 13. air guide duct; 131. first partition; 1311. horizontal plate; 1312. vertical plate; 14. power distribution compartment; 15. liquid cooling unit compartment; 2. exhaust fan; 3. second partition; 31. through hole; 4. box door; 5. skirt; 51. seal; 6. liquid cooling unit; 7. liquid-cooled battery pack; 8. air inlet; 9. pipeline; 91. main pipeline unit; 92. first branch unit; 93. second branch unit. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings showing multiple embodiments of the present application. It should be understood that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments described in the present application, all other embodiments obtained by ordinary technicians in this field without spending creative work will fall within the scope of protection of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those generally understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific implementation methods, and are not intended to limit this application; the terms "including", "comprising", "having", "having", "containing", "including", etc. in the specification and claims of this application and the above-mentioned figure description are open-ended words. Therefore, "including", "comprising", "having" is a method or device with one or more steps or elements, for example, which has one or more steps or elements, but is not limited to having only these one or more elements. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In addition, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "multiple" is two or more.

[0027] In the description of the present application, it should be understood that the terms "center", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0030] As mentioned above, it should be emphasized that when the term "includes / comprising" is used in this specification, it is used to clearly indicate the presence of the features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups of features, integers, steps, components. As used in this application, the singular forms "a", "an" and "the" also include plural forms, unless the context clearly indicates otherwise.

[0031] The words "a" and "an" in this specification may mean one, but may also be consistent with the meaning of "at least one" or "one or more". The term "about" generally means plus or minus 10% of the mentioned value, or more specifically plus or minus 5%. The term "or" used in the claims means "and / or" unless it is clearly stated that it refers to only alternative solutions.

[0032] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0033] Figure 1 The structure of the energy storage container according to some embodiments of the present application is shown in FIG. Figure 1 . Figure 2 The structure of the energy storage container according to some embodiments of the present application is shown in FIG. Figure 2 .

[0034] One or more embodiments of the present application disclose an energy storage container. Figure 1 , 2 The energy storage container includes a box body 1 and an exhaust fan 2. A battery compartment 12, a guide air duct 13 and a power distribution compartment 14 are arranged inside the box body 1. The power distribution compartment 14 has an air outlet 11. The exhaust fan 2 is arranged at the air outlet 11. The guide air duct 13 is located inside the power distribution compartment 14. The air outlet 11 and the battery compartment 12 are respectively located on opposite sides of the guide air duct, and the guide air duct 13 is used to connect the battery compartment 12 and the air outlet 11.

[0035] When there is flammable gas inside the battery compartment 12, the exhaust fan 2 at the air outlet 11 can be started. Since the guide channel 13 connects the battery compartment 12 and the air outlet 11, the exhaust fan 2 can quickly extract the flammable gas inside the battery compartment 12, thereby reducing the concentration of the flammable gas inside the battery compartment 12; moreover, since the air outlet 11 and the battery compartment 12 are respectively located on opposite sides of the guide air duct, the flammable gas does not need to change direction too much when flowing in the guide channel 13, which further facilitates the exhaust fan 2 to quickly extract the flammable gas inside the battery compartment 12, and finally improves the exhaust efficiency of the flammable gas in the battery compartment 12, so as to reduce the probability of fire inside the battery compartment 12.

[0036] Specifically, the exhaust fan can be turned on manually by a switch, or it can be turned on automatically by smoke sensing, temperature sensing, or combustible gas detection. There is no limitation here and it depends on actual needs.

[0037] In some embodiments, in combination Figure 1 As shown, the air guide duct 13 includes a first partition 131 , which is disposed inside the power distribution compartment 14 and is surrounded by an inner wall of the power distribution compartment 14 and an outer wall of the battery compartment 12 to form the air guide duct 13 .

[0038] In at least one embodiment, the space inside the power distribution warehouse 14 is a rectangular space structure as a whole. The first partition 131 is L-shaped as a whole, and includes a horizontal plate 1311 and a vertical plate 1312 connected to each other. The ends of the horizontal plate 1311 and the vertical plate 1312 in the direction of the Y axis are respectively connected to the inner wall of the power distribution warehouse 14 in the direction of the Y axis, and the other ends of the horizontal plate 1311 and the vertical plate 1312 in the direction of the Y axis are respectively connected to the outer wall of the battery compartment 12 in the direction of the Y axis. The end of the horizontal plate 1311 away from the vertical plate 1312 is connected to the inner wall of the power distribution warehouse 14 in the direction of the X axis, and the end of the vertical plate 1312 away from the horizontal plate 1311 is connected to the inner wall of the power distribution warehouse 14 in the direction of the Z axis. In this way, the first partition 131 and the inner wall of the power distribution warehouse 14 and the outer wall of the battery compartment 12 are enclosed to form a guide air duct, and its overall structure is simple, and there is no need to significantly modify the energy storage container.

[0039] Specifically, the first partition 131 can also be C-shaped, O-shaped or U-shaped, etc. There is no limitation here, and it depends on actual needs. However, it should be noted that when the shape of the first partition 131 changes, it needs to be connected to the inner wall of the distribution compartment 14 and the outer wall of the battery compartment 12 according to its specific shape to form the guide air duct 13.

[0040] In some embodiments, in combination Figure 1As shown, the battery compartment 12 has a through hole 31 communicating with the air guide duct 13 , and along the air outlet direction of the air guide duct 13 , the air outlet 11 is arranged opposite to the through hole 31 .

[0041] In at least one embodiment, the outer wall of the battery compartment 12 in the direction of the Y axis is provided with a through hole 31, and the through hole 31 is used to connect the guide air duct 13 and the battery compartment 12, and in the direction of the Y axis, the air outlet 11 is arranged opposite to the through hole 31. In this way, when the exhaust fan is working, the high-temperature air passes through the through hole 31, the guide air duct 13 and the air outlet 11 in sequence along the Y axis, and it does not need to change direction during the flow process, so that the exhaust fan 2 can quickly extract the combustible gas inside the battery compartment 12.

[0042] Specifically, the shape of the through hole 31 can also be circular, triangular or other irregular shapes, which is not limited here and depends on actual needs. The number of the through holes 31 can also be two, three or four, etc., which is not limited here and depends on actual needs.

[0043] In some embodiments, in combination Figure 1 As shown, the air outlet 11 is arranged at the upper end part of one end of the power distribution compartment 14; the battery compartment 12 has an air inlet 8 connected to the outside, and the air inlet 8 is located at the lower end part of the battery compartment 12 away from the power distribution compartment 14.

[0044] In at least one embodiment, the air outlet 11 is disposed at the upper end portion of the power distribution compartment 14, that is, the upper end portion of the left end surface of the box body 1; the battery compartment 12 has an air inlet 8 connected to the outside, and the air inlet 8 is located at the lower right portion of the rear end surface of the box body 1. In this way, for example, when there is flammable gas inside the battery compartment 12, the exhaust fan 2 starts working, and the flammable gas in the battery compartment 12 is discharged through the air outlet 11. Under the action of negative pressure, fresh air from the outside quickly enters the battery compartment 12 through the air inlet 8, thereby reducing the probability of fire inside the battery compartment 12.

[0045] Specifically, the shapes of the air inlet 8 and the air outlet 11 can be circular, square or other irregular shapes, which are not limited here and depend on actual needs.

[0046] Specifically, a shutter is provided at the air inlet 8, so that the air inlet volume and the air inlet angle of the air inlet 8 can be adjusted by swinging the shutter. For example, when the shutter is swung to a horizontal state, the air inlet 8 is at a maximum air inlet volume; when the shutter is swung to a tilted state, the air inlet 8 can achieve oblique upward air intake or oblique downward air intake.

[0047] In some embodiments, in combination Figure 1As shown, the box body 1 includes a box door 4 for opening the power distribution compartment 14 , the box door 4 is provided with the air outlet 11 , and one end of the first partition plate 131 facing the box door 4 is sealed with the box door 4 .

[0048] In at least one embodiment, a second partition 3 is provided inside the box body 1, and the second partition 3 can divide the inside of the box body 1 into a power distribution compartment 14 and a battery compartment 12 along the left and right directions. A box door 4 for opening the power distribution compartment 14 is provided on the left end face of the box body 1, and an air outlet 11 is provided at the upper end of the box door 4, and one end of the first partition 131 facing the box door 4 is sealed and fitted with the box door 4. In this way, the guide air duct 13 and the air outlet 11 can be separated by opening the box door 4, so that the exhaust fan 2 can be installed easily.

[0049] In some embodiments, in combination Figure 1 As shown, a skirt 5 is provided on the edge of one end of the first partition plate 131 facing the box door 4 , and the skirt 5 is used for sealingly fitting with the box door 4 .

[0050] In at least one embodiment, the edges of the left ends of the horizontal plate 1311 and the vertical plate 1312 of the first partition 131 are respectively provided with skirts 5, wherein the skirts 5 are formed by bending the horizontal plate 1311 and the vertical plate 1312 of the first partition 131. In this way, when the cabinet door 4 is closed, the skirts 5 increase the contact area between the horizontal plate 1311 and the vertical plate 1312 of the first partition 131 and the cabinet door 4, thereby strengthening the sealing of the first partition 131 and the cabinet door 4, and further allowing the exhaust fan 2 to extract air only from the guide air duct.

[0051] Specifically, the skirt 5 can also be connected to the horizontal plate 1311 and the vertical plate 1312 of the first partition 131 by welding or riveting, which is not limited here and depends on actual needs.

[0052] In some embodiments, the energy storage container further includes a sealing member 51 , and the sealing member 51 is used to be disposed between the container door 4 and the skirt 5 .

[0053] In at least one embodiment, the sealing member 51 is foam, and the foam is arranged on the end surface of the skirt 5 facing the inner wall of the door 4. In this way, when the door 4 is closed, the foam is squeezed between the inner wall of the door 4 and the skirt 5, thereby improving the sealing between the door 4 and the skirt 5.

[0054] Specifically, the connection method between the foam and the skirt 5 includes, but is not limited to, bonding or screw connection, which is not limited here and depends on actual needs.

[0055] Specifically, the sealing member 51 may also be a rubber sealing pad or an asbestos sealing pad, which is not limited here and depends on actual needs.

[0056] Figure 3 It is a schematic diagram of the structure of pipelines according to some embodiments of the present application.

[0057] In some embodiments, in combination Figure 1 As shown, the energy storage container also includes a liquid cooling unit 6 and a liquid cooling battery pack 7. A liquid cooling unit compartment 15 is also provided inside the box body 1. The liquid cooling unit 6 is arranged in the liquid cooling unit compartment 15 and is used to provide flowing refrigerant to the liquid cooling battery pack 7 through a pipeline 9.

[0058] In at least one embodiment, a liquid cooling unit compartment 15 is also provided inside the box body 1. The liquid cooling unit compartment 15 and the power distribution compartment 14 are respectively located on the left and right sides of the battery compartment 12. The liquid cooling unit 6 is arranged in the liquid cooling unit compartment 15 and is used to provide flowing refrigerant to the liquid-cooled battery pack 7 in the battery compartment 12 through the pipeline 9.

[0059] Specifically, the power of the liquid cooling unit is 95kw, and the liquid-cooled battery pack 7 is used for heat exchange of the battery cluster. Its liquid inlet and liquid outlet are respectively connected to the liquid cooling unit 6 through pipelines 9. Each pipeline 9 includes a main pipeline unit 91, multiple first branch pipeline units 92 and multiple second branch pipeline units 93. The main pipeline unit 91 is connected to multiple first branch pipeline units 92, and multiple first branch pipeline units 92 are connected to multiple second branch pipeline units 93. Each second pipeline unit 93 corresponds to a liquid inlet or a liquid outlet of the liquid-cooled battery pack 7. The size of the main pipeline unit 91 is 89*2mm, the size of the first branch pipeline unit 92 is 43.5*2mm, and the size of the second branch pipeline unit 93 is 16.5*1.25mm, which effectively improves the high heat dissipation problem brought about by the product under 1C conditions and achieves the technical effect of high-efficiency charging and discharging of the product.

[0060] One or more embodiments of the present application further disclose an energy storage system, which includes the energy storage container as described above.

[0061] The beneficial effects of the energy storage system and the above-mentioned energy storage container relative to the prior art are the same, so they will not be described in detail here.

[0062] Figure 4 It is a schematic diagram of the layout of two energy storage containers according to some embodiments of the present application.

[0063] In some embodiments, the energy storage system includes a plurality of the energy storage containers, and at least two of the energy storage containers form a group and are arranged back to back.

[0064] In at least one embodiment, the energy storage system includes a plurality of energy storage containers, wherein at least two energy storage containers form a group. Since no doors are provided on the backs of the energy storage containers, the two energy storage containers are arranged back to back, that is, the backs of the two energy storage containers are arranged against each other, thereby reducing the occupied area.

[0065] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An energy storage container, characterized in that: It includes a box body and an exhaust fan, wherein a battery compartment, a guide air duct and a power distribution compartment are arranged inside the box body, the power distribution compartment has an air outlet, the exhaust fan is arranged at the air outlet, the guide air duct is located inside the power distribution compartment, the air outlet and the battery compartment are respectively located on two opposite sides of the guide air duct, and the guide air duct is used to connect the battery compartment and the air outlet.

2. The energy storage container according to claim 1, characterized in that: The air guide duct includes a first partition, which is arranged inside the power distribution compartment and is surrounded by an inner wall of the power distribution compartment and an outer wall of the battery compartment to form the air guide duct.

3. The energy storage container according to claim 1, characterized in that: The battery compartment has a through hole connected to the air guide duct, and along the air outlet direction of the air guide duct, the air outlet is arranged opposite to the through hole.

4. The energy storage container according to claim 1, characterized in that: The air outlet is arranged at the upper end portion of one end of the power distribution compartment; the battery compartment has an air inlet connected to the outside, and the air inlet is located at the lower end portion of one end of the battery compartment away from the power distribution compartment.

5. The energy storage container according to claim 2, characterized in that: The box body includes a box door for opening the power distribution compartment, the box door is provided with the air outlet, and one end of the first partition facing the box door is sealed with the box door.

6. The energy storage container according to claim 5, characterized in that: A skirt is provided on the edge of one end of the first partition plate facing the box door, and the skirt is used for sealingly fitting with the box door.

7. The energy storage container according to claim 6, characterized in that: It also includes a sealing member, which is used to be arranged between the box door and the skirt.

8. The energy storage container according to claim 1, characterized in that: It also includes a liquid cooling unit and a liquid cooling battery pack. A liquid cooling unit compartment is provided inside the box body. The liquid cooling unit is arranged in the liquid cooling unit compartment and is used to provide flowing refrigerant to the liquid cooling battery pack through pipelines.

9. An energy storage system, characterized in that: Comprising the energy storage container as claimed in any one of claims 1 to 8.

10. The energy storage system according to claim 9, characterized in that: It comprises a plurality of the energy storage containers, wherein at least two of the energy storage containers form a group and are arranged back to back.

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