Energy storage battery pack upper cover, energy storage battery pack and energy storage container

Abstract

The utility model belongs to the technical field of energy storage, and discloses an energy storage battery pack upper cover, an energy storage battery pack and an energy storage container. The energy storage battery pack upper cover comprises a top plate and four side plates. A first water guide groove penetrating in the first horizontal direction is formed in the upper surface of the top plate, the groove bottom of the first water guide groove is obliquely arranged relative to the first horizontal direction, and the parts, located on the two sides of the first water guide groove, of the upper surface of the top plate are provided with descending slopes facing the first water guide groove; the four side plates are sequentially connected end to end and arranged on the periphery of the top plate respectively, a water guiding groove is formed in the side face of the side plate perpendicular to the lower end of the first water guiding groove, a water receiving flange is arranged at the lower end of the side plate, a water receiving groove is formed in the water receiving flange, and the first water guiding groove and the water receiving groove are communicated through the water guiding groove. A water guide hole is formed in the bottom of the water receiving tank. According to the energy storage battery pack, condensate water can be prevented from being accumulated on the upper cover of the energy storage battery pack without arranging an air-cooled air conditioner in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to an energy storage battery pack upper cover, an energy storage battery pack and an energy storage container. Background Art

[0002] Energy storage containers generally use liquid cooling for cooling. Multiple battery packs are arranged from bottom to top in the energy storage container, and a liquid cooling plate is installed on the bottom plate of each battery pack to remove the heat from the battery pack. During the operation of the energy storage container, the temperature of the upper cover of the battery pack will also rise, thereby increasing the temperature of the air above the upper cover; in two adjacent battery packs, when the rising air above the upper cover of the battery pack at the lower position encounters the liquid cooling plate at the bottom of the higher battery pack, the water vapor in the air will form condensation water on the lower surface of the liquid cooling plate, and the condensation water will drip onto the upper cover of the battery pack at the lower position. The condensation water dripping on the upper cover of the battery pack accumulates for a long time, which may cause system short circuit, damage to electronic components, and rust on the metal surface.

[0003] To solve the above problems, air-cooled air conditioners are generally used in the prior art to control the temperature and humidity in the energy storage container to reduce the generation of condensed water.

[0004] However, the cost of using air-cooled air conditioners is high. Furthermore, when the energy storage container is being transported long distances or stored at a production or project site, the energy storage system in the container cannot provide power, and the air-cooled air conditioner cannot function. When the ambient temperature difference exceeds 10°C or the ambient humidity is high, water vapor in the air condenses on the outer surface of the liquid cooling plate. This condensation will continue to drip and accumulate on the upper cover of the battery pack below the liquid cooling plate for a long time. This condensation dripping on the upper cover of the battery pack can cause system short circuits, damage electronic components, and rust metal surfaces. Utility Model Content

[0005] The purpose of the utility model is to provide an energy storage battery pack cover, an energy storage battery pack and an energy storage container, which can avoid long-term accumulation of condensed water on the energy storage battery pack cover at a relatively low cost.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Energy storage battery pack cover, including:

[0008] a top plate, wherein a first water guide groove is provided on the upper surface of the top plate and extends through the first horizontal direction, wherein the bottom of the first water guide groove is inclined relative to the first horizontal direction, and portions of the upper surface of the top plate located on both sides of the first water guide groove are both provided with a descending slope toward the first water guide groove;

[0009] Four side panels are connected end to end in sequence and are respectively arranged around the top plate. A water diversion groove is provided on the side of the side panel arranged perpendicular to the lower end of the first water guide groove, and a water receiving flange is provided at the lower end of the side panel. A water receiving groove is provided on the water receiving flange. The water diversion groove connects the first water guide groove and the water receiving groove, and a water guide hole is provided at the bottom of the water receiving groove.

[0010] Optionally, the upper surface of the top plate is further provided with a second water guide groove running through along the second horizontal direction, the second water guide groove includes two oppositely arranged branch water guide grooves, the two branch water guide grooves are respectively located on both sides of the first water guide groove, the first end of the branch water guide groove is connected to the first water guide groove, the bottom of the second end of the branch water guide groove is higher than the bottom of the first end of the branch water guide groove, and the second horizontal direction is perpendicular to the first horizontal direction.

[0011] Optionally, a plurality of second water guide grooves are arranged at intervals on the upper surface of the top plate along the first horizontal direction.

[0012] Optionally, the inclination angle of the bottom of the sub-water channel relative to the horizontal plane is not less than a first set angle.

[0013] Optionally, the inclination angle of the bottom of the first water guide groove relative to the horizontal plane is not less than a second set angle.

[0014] An energy storage battery pack includes a battery pack case provided with an accommodating cavity, wherein the bottom plate of the battery pack case is provided with a liquid cooling plate, and is characterized in that it also includes an energy storage battery pack cover according to any one of claims 1 to 4, wherein the energy storage battery pack cover is provided on the upper end opening of the battery pack case.

[0015] Energy storage container, including:

[0016] A container body, wherein an accommodating space is provided in the container body;

[0017] The above-mentioned energy storage battery pack is arranged in the accommodating space with multiple energy storage battery packs arranged at intervals from bottom to top.

[0018] Optionally, a plurality of energy storage battery pack groups are arranged in the accommodating space, and each of the energy storage battery pack groups includes a plurality of the energy storage battery packs spaced apart in a vertical direction.

[0019] Optionally, the energy storage container further includes a drain pipe assembly, and the drain pipe assembly includes:

[0020] A primary drainage pipe, the inlet end of which is connected to the water guide hole, and each water guide hole is provided with a primary drainage pipe;

[0021] a secondary drainage pipe, wherein the outlet end of the primary drainage pipe is connected to the inlet end of the secondary drainage pipe;

[0022] The outlet end of the second-stage liquid drainage pipe is connected to the inlet end of the third-stage liquid drainage pipe.

[0023] Optionally, a one-way drain valve is provided at the outlet end of the tertiary drain pipe.

[0024] Beneficial effects of the utility model:

[0025] The upper surface of the top plate of the energy storage battery pack cover proposed by the present invention receives condensed water dripping from the top to the bottom. If the dripping condensed water drips directly into the first water guide groove, because the bottom of the first water guide groove is inclined relative to the first horizontal direction, the condensed water can flow downward along the first water guide groove and flow along the water diversion groove into the water receiving groove. If the dripping condensed water drips directly onto the upper surface of the top plate located on both sides of the first water guide groove, because both sides are provided with a downward slope toward the first water guide groove, the dripping condensed water can flow along the downward slope to the first water guide groove, and the condensed water can flow downward along the first water guide groove and flow along the water diversion groove into the water receiving groove. The bottom of the water receiving groove is provided with a water guide hole. By connecting the water guide hole to a drain pipe, the condensed water in the water receiving groove can be discharged, thereby preventing the condensed water from accumulating on the energy storage battery pack cover and causing damage to the energy storage battery pack cover. In this way, it is possible to avoid long-term accumulation of condensed water on the upper cover of the energy storage battery pack without installing an air-cooling air conditioner as in the prior art.

[0026] The energy storage battery pack proposed by the present invention includes the above-mentioned energy storage battery pack cover, which can prevent condensed water from accumulating on the energy storage battery pack cover for a long time without the need for an air-cooling air conditioner as in the prior art.

[0027] The energy storage container proposed in the present invention includes the above-mentioned energy storage battery pack, and can prevent condensation water from accumulating on the upper cover of the energy storage battery pack for a long time without the need for an air-cooling air conditioner as in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the energy storage battery pack provided by the first embodiment of the present invention from a first perspective;

[0030] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0031] Figure 3 1 is a schematic diagram of the energy storage battery pack provided in the first embodiment of the present invention from a second viewing angle;

[0032] Figure 4 1 is a schematic diagram of the energy storage battery pack provided in the first embodiment of the present invention from a third viewing angle;

[0033] Figure 5 This is a schematic diagram of the internal structure of the energy storage container provided in the second embodiment of the present utility model from one perspective;

[0034] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0035] Figure 7 This is a schematic diagram of the internal structure of the energy storage container provided in the second embodiment of the present utility model from another perspective;

[0036] Figure 8 yes Figure 7 Enlarged view of point C in the middle.

[0037] In the picture:

[0038] 100. Container body;

[0039] 2001, first-stage drain pipe; 2002, second-stage drain pipe; 2003, third-stage drain pipe; 20031, one-way drain valve;

[0040] 10. Battery pack box;

[0041] 1. Top plate; 11. First water channel; 12. Second water channel; 121. Sub-water channel;

[0042] 2. Side panel; 21. Water receiving flange; 211. Water receiving trough; 212. Water guide hole; 22. Water diversion trough. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0044] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0047] Example 1

[0048] See also Figures 1-4 This embodiment provides an energy storage battery pack, including a battery pack case 10 provided with an accommodating cavity and an energy storage battery pack cover. The bottom plate of the battery pack case 10 is provided with a liquid cooling plate, and the energy storage battery pack cover is provided at the upper end opening of the battery pack case 10.

[0049] The accommodating cavity is used to place the energy storage battery.

[0050] Energy storage battery packs are placed within the storage container. Generally, multiple energy storage battery pack groups are arranged horizontally within the storage container, with each group consisting of multiple energy storage battery packs arranged vertically. Between two adjacent energy storage battery packs, condensed water on the liquid cooling plate of the battery pack case 10 of the upper energy storage battery pack may drip onto the upper cover of the lower energy storage battery pack. If condensed water accumulates on the upper cover for an extended period of time, it may damage the battery packs.

[0051] In order to avoid the above problems, in this embodiment, the upper cover of the energy storage battery pack includes a top plate 1 and four side plates 2.

[0052] Among them, the upper surface of the top plate 1 is provided with a first water guide groove 11 running through the first horizontal direction, the bottom of the first water guide groove 11 is inclined relative to the first horizontal direction, and the parts of the upper surface of the top plate 1 located on both sides of the first water guide groove 11 are provided with a descending slope toward the first water guide groove 11.

[0053] The four side panels 2 are connected end to end in sequence and are respectively arranged around the top plate 1. A water diversion groove 22 is provided on the side of the side panel 2 which is arranged perpendicular to the lower end of the first water guide groove 11, and a water receiving flange 21 is provided at the lower end of the side panel 2. A water receiving groove 211 is provided on the water receiving flange 21. The water diversion groove 22 connects the first water guide groove 11 and the water receiving groove 211, and a water guide hole 212 is provided at the bottom of the water receiving groove 211.

[0054] The upper surface of the top plate 1 of the energy storage battery pack cover provided in this embodiment receives condensed water dripping from top to bottom; if the dripping condensed water drips directly into the first water guide groove 11, since the bottom of the first water guide groove 11 is inclined relative to the first horizontal direction, the condensed water can flow downward along the first water guide groove 11 and flow along the water diversion groove 22 to the water receiving groove 211; if the dripping condensed water drips directly onto the upper surface of the top plate 1 located on both sides of the first water guide groove 11, since the parts on both sides are provided with a descending slope toward the first water guide groove 11, the dripping condensed water can flow along the descending slope to the first water guide groove 11, and the condensed water can flow downward along the first water guide groove 11 and flow along the water diversion groove 22 to the water receiving groove 211.

[0055] A water guide hole 212 is provided at the bottom of the water receiving tank 211. By connecting the water guide hole 212 to the drain pipe, the condensed water in the water receiving tank 211 can be discharged to prevent the condensed water from accumulating on the upper cover of the energy storage battery pack and causing damage to the upper cover of the energy storage battery pack.

[0056] Furthermore, in order to make the condensed water dripping on the upper surface of the top plate 1 on both sides of the first water guide groove 11 flow more orderly, in this embodiment, the upper surface of the top plate 1 is also provided with a second water guide groove 12 running through the second horizontal direction, and the second water guide groove 12 includes two oppositely arranged branch water guide grooves 121, and the two branch water guide grooves 121 are respectively located on both sides of the first water guide groove 11, and the first end of the branch water guide groove 121 is connected to the first water guide groove 11, and the bottom of the second end of the branch water guide groove 121 is higher than the bottom of the first end of the branch water guide groove 121, and the second horizontal direction is perpendicular to the first horizontal direction.

[0057] That is, the portion of the upper surface of the top plate 1 located on one side of the first water guide groove 11 is provided with a sub-water guide groove 121, and the portion of the upper surface of the top plate 1 located on the other side of the first water guide groove 11 is also provided with a sub-water guide groove 121. The condensed water dripping into the sub-water guide groove 121 can flow along the bottom of the sub-water guide groove 121 into the first water guide groove 11.

[0058] Optionally, along the first horizontal direction, a plurality of second water guide grooves 12 are arranged at intervals on the upper surface of the top plate 1. This arrangement can make the flow of condensed water on the upper surface of the entire top plate 1 more orderly.

[0059] Optionally, the inclination angle of the bottom of the first water guide channel 11 relative to the horizontal plane is not less than a second set angle.

[0060] Specifically, see Figure 3 The angle between the bottom surface of the first water channel 11 and the first horizontal direction is not less than a second set angle. Optionally, the second set angle is 2°. Further, optionally, the angle between the bottom surface of the first water channel 11 and the first horizontal direction is 1°, 1.5°, or 2°. Preferably, it is 1°. A smaller value of the second set angle can meet the water diversion requirements.

[0061] Optionally, the inclination angle of the bottom of the sub-water guide channel 121 relative to the horizontal plane is not less than a first set angle.

[0062] Specifically, see Figure 4 , the angle between the bottom surface of the sub-water guide groove 121 and the second horizontal direction is not less than a first set angle. Optionally, the first set angle is 2°; further optionally, the angle between the bottom surface of the sub-water guide groove 121 and the second horizontal direction is 1°, 1.5° or 2°, preferably 1.5°. The value of the first set angle is smaller, which can meet the water guide requirements.

[0063] Specifically, Figure 3 Take the shown position as an example, Figure 3 From a visual perspective, the upper surface of the top plate 1 is in a state where one end is low and the other end is high, and the side plate 2 provided with the water diversion groove 22 is located at the lower end.

[0064] Specifically, Figure 4 Taking the shown orientation as an example, the upper surface of the top plate 1 is high on both sides and low in the middle.

[0065] A first water channel 11 and a second water channel 12 are formed directly on the upper surface of the top plate 1. The first water channel 11 has a width of 90 mm and a depth of 10 mm; the second water channel 12 has a width of 90 mm and a depth of 10 mm. Because the upper surface of the top plate 1 has a slope, the depths of the first and second water channels 11, 12 can be fixed.

[0066] Example 2

[0067] See also Figure 5 This embodiment provides an energy storage container, which includes a container body 100 and the energy storage battery pack in the first embodiment.

[0068] An accommodating space is provided in the container body 100 .

[0069] In the accommodating space, multiple energy storage battery packs are arranged at intervals from bottom to top.

[0070] The energy storage container provided in this embodiment includes the above-mentioned energy storage battery pack. The energy storage container does not need to be equipped with an air-cooled air conditioner as in the prior art, and can also prevent condensation from accumulating on the energy storage battery pack cover.

[0071] Whether the energy storage container is in operation, in long-distance transportation, stored at a production site, or stored at a project site, condensed water dripping onto the top plate 1 of the energy storage battery pack cover can be diverted away.

[0072] The upper surface of the top plate 1 of the energy storage battery pack cover receives the condensed water dripping from top to bottom; if the dripping condensed water drips directly into the first water guide groove 11, since the bottom of the first water guide groove 11 is inclined relative to the first horizontal direction, the condensed water can flow downward along the first water guide groove 11 and flow along the water diversion groove 22 to the water receiving groove 211; if the dripping condensed water drips directly onto the upper surface of the top plate 1 located on both sides of the first water guide groove 11, since the parts on both sides are provided with a descending slope toward the first water guide groove 11, the dripping condensed water can flow along the descending slope to the first water guide groove 11, and the condensed water can flow downward along the first water guide groove 11 and flow along the water diversion groove 22 to the water receiving groove 211.

[0073] A water guide hole 212 is provided at the bottom of the water receiving tank 211. By connecting the water guide hole 212 to the drain pipe, the condensed water in the water receiving tank 211 can be discharged to prevent the condensed water from accumulating on the upper cover of the energy storage battery pack and causing damage to the upper cover of the energy storage battery pack.

[0074] Specifically, multiple energy storage battery packs are arranged in the storage space, and each energy storage battery pack group includes multiple energy storage battery packs spaced apart in the vertical direction. This arrangement enables the energy storage container to have multiple energy storage battery packs, thereby ensuring the energy storage capacity of the energy storage container.

[0075] Furthermore, in order to allow the condensed water accumulated in the water receiving trough 211 to be discharged through the water guide hole 212 , in this embodiment, the energy storage container further includes a drain pipe assembly.

[0076] Specifically, see Figure 5-Figure 8 The drainage pipe assembly includes a first-level drainage pipe 2001, a second-level drainage pipe 2002 and a third-level drainage pipe 2003.

[0077] The inlet end of the primary drainage pipe 2001 is communicated with the water guide hole 212 , and each water guide hole 212 is provided with a primary drainage pipe 2001 .

[0078] Specifically, a connecting hole communicating with the water guide hole 212 is provided on the battery pack case 10, and a funnel-shaped joint is provided at the inlet end of the first-level drain pipe 2001, which abuts against the lower surface of the battery pack case 10 and communicates with the connecting hole.

[0079] The outlet end of the first-level drainage pipe 2001 is connected to the inlet end of the second-level drainage pipe 2002.

[0080] The outlet end of the secondary drainage pipe 2002 is connected to the inlet end of the tertiary drainage pipe 2003.

[0081] Finally, the condensed water is discharged through the outlet end of the tertiary drain pipe 2003 .

[0082] Furthermore, a one-way drain valve 20031 is provided at the outlet end of the tertiary drain pipe 2003 to isolate external water vapor and foreign matter.

[0083] It should be noted that multiple energy storage battery packs can share a single secondary drain pipe 2002. Specifically, the secondary drain pipe 2002 is arranged vertically. There is only one tertiary drain pipe 2003. The multiple secondary drain pipes 2002 are independent of each other, and the outlet of each secondary drain pipe 2002 is connected to the inlet of the tertiary drain pipe 2003.

[0084] The energy storage container provided in this embodiment, after adopting the energy storage battery pack cover, only needs to add a drain pipe assembly, without changing the overall structure of the energy storage container. This can effectively drain condensed water dripping from the liquid cooling plate onto the energy storage battery pack cover due to changes in the external environment to the outside of the container body 100, thereby ensuring the safety and reliability of the energy storage system of the energy storage container and reducing the product cost.

[0085] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The upper cover of the energy storage battery pack is characterized by: include: A top plate (1), wherein the upper surface of the top plate (1) is provided with a first water guide groove (11) extending along a first horizontal direction, the bottom of the first water guide groove (11) is inclined relative to the first horizontal direction, and portions of the upper surface of the top plate (1) located on both sides of the first water guide groove (11) are provided with a descending slope toward the first water guide groove (11); Four side panels (2), the four side panels (2) are connected end to end in sequence and are respectively arranged around the top panel (1), a water guide groove (22) is provided on the side of the side panel (2) which is arranged perpendicular to the lower end of the first water guide groove (11), and a water receiving flange (21) is provided at the lower end of the side panel (2), a water receiving groove (211) is provided on the water receiving flange (21), the water guide groove (22) connects the first water guide groove (11) and the water receiving groove (211), and a water guide hole (212) is provided at the bottom of the water receiving groove (211).

2. The energy storage battery pack cover according to claim 1, characterized in that: The upper surface of the top plate (1) is further provided with a second water guide groove (12) penetrating along a second horizontal direction, the second water guide groove (12) comprising two oppositely arranged branch water guide grooves (121), the two branch water guide grooves (121) being respectively located on both sides of the first water guide groove (11), the first end of the branch water guide groove (121) being in communication with the first water guide groove (11), the bottom of the second end of the branch water guide groove (121) being higher than the bottom of the first end of the branch water guide groove (121), and the second horizontal direction and the first horizontal direction being perpendicular to each other.

3. The energy storage battery pack cover according to claim 2, characterized in that: Along the first horizontal direction, a plurality of second water guide grooves (12) are arranged at intervals on the upper surface of the top plate (1).

4. The energy storage battery pack cover according to claim 2, characterized in that: The inclination angle of the bottom of the branch water channel (121) relative to the horizontal plane is not less than a first set angle.

5. The energy storage battery pack cover according to any one of claims 1 to 4, characterized in that: The inclination angle of the bottom of the first water guide groove (11) relative to the horizontal plane is not less than a second set angle.

6. An energy storage battery pack, comprising a battery pack box (10) provided with a receiving cavity, wherein the bottom plate of the battery pack box (10) is provided with a liquid cooling plate, characterized in that: It also includes an energy storage battery pack cover according to any one of claims 1 to 5, wherein the energy storage battery pack cover is arranged on the upper end opening of the battery pack box (10).

7. Energy storage container, characterized in that: include: A container body (100), wherein a storage space is provided in the container body (100); The energy storage battery pack according to claim 6, wherein a plurality of the energy storage battery packs are arranged at intervals from bottom to top in the accommodating space.

8. The energy storage container according to claim 7, characterized in that: A plurality of energy storage battery pack groups are arranged in the accommodating space, and each of the energy storage battery pack groups includes a plurality of energy storage battery packs spaced apart in a vertical direction.

9. The energy storage container according to claim 7, characterized in that: The energy storage container further includes a drain pipe assembly, which includes: A first-level drainage pipe (2001), the inlet end of the first-level drainage pipe (2001) is connected to the water guide hole (212), and each water guide hole (212) is provided with a first-level drainage pipe (2001); a secondary drainage pipe (2002), wherein the outlet end of the primary drainage pipe (2001) is connected to the inlet end of the secondary drainage pipe (2002); The third-level drainage pipe (2003) has an outlet end of the second-level drainage pipe (2002) connected to an inlet end of the third-level drainage pipe (2003).

10. The energy storage container according to claim 9, characterized in that: The outlet end of the tertiary drainage pipe (2003) is provided with a one-way drainage valve (20031).

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