CN220821704U - Energy storage container - Google Patents

Abstract

The application provides an energy storage container comprising: the box, a plurality of battery compartment, air flue and air supply arrangement. The air channel is arranged in the box body, and an air inlet and a plurality of air supply outlets are arranged on the air channel. In the extending direction of the ventilating duct, the flow area of the air supply opening adjacent to the air inlet is S1, and the flow area of the air supply opening far away from the air inlet is S2, wherein S1 is more than S2. The larger the overflow area of the air supply opening which is arranged closer to the air inlet is, the flow of the fluid which enters each air supply opening is basically the same, so that the heat exchange effect of each air supply opening to the battery compartment is the same, namely, the gradual flow distribution of the fluid in the ventilating duct is realized, the air outlet of each air supply opening is accurately controlled to be consistent, the temperature difference of the battery compartments in different areas is reduced, and the purpose of uniform heat dissipation of the battery is achieved.

Description

Energy storage container

Technical Field

The application relates to the technical field of batteries, in particular to an energy storage container.

Background

Battery energy storage systems are becoming one of the cleanest and environmentally friendly energy storage means, and large energy storage container products require larger battery capacities, higher energy densities and integrated energy storage systems. In large energy storage systems, thermal management systems directly affect overall temperature control, service life, and safety performance. At present, the air supply and heat dissipation of large-scale energy storage project batteries are mainly achieved, most of the large-scale energy storage project batteries are blown through simple straight air channels, the air outlets of all the air inlets are inconsistent, the air outlet close to the air conditioner is smaller, excessive cold air is accumulated at the tail end of the air channels, the heat dissipation of the batteries is uneven, and the temperature difference is large. Severely affecting battery life.

Disclosure of utility model

The application aims to provide an energy storage container capable of uniformly radiating heat from a plurality of battery bins.

To achieve the above object, the present application provides an energy storage container comprising: a case; the battery bins are arranged in the box body; the ventilating duct is provided with an air inlet and a plurality of air supply outlets, and the air supply outlets are configured to be communicated with the battery bin; the air supply device is communicated with the air inlet; and in the extending direction of the ventilating duct, the overflow area of the air supply opening adjacent to the air inlet is S1, and the overflow area of the air supply opening far away from the air inlet is S2, wherein S1 is more than S2.

Compared with the prior art, the technical scheme has the following advantages:

In the air duct, the resistance to the fluid at the air inlet is smaller, the flow velocity of the fluid is faster, and the fluid entering the air supply outlet is smaller, so that the flow passing area of the air supply outlet arranged at the air inlet is larger, the flow of the fluid entering each air supply outlet is basically the same, the heat exchange effect of each air supply outlet on the battery compartment is the same, namely, the gradual flow distribution of the fluid in the air duct is realized, the air outlet of each air supply outlet is accurately controlled to be consistent, the temperature difference of the battery compartments in different areas is reduced, and the purpose of uniform heat dissipation of the battery is achieved.

Drawings

The following drawings are only for purposes of illustration and explanation of the present application and are not intended to limit the scope of the application. Wherein:

FIG. 1 is a schematic view of the structure of an energy storage container according to the present application;

fig. 2 is a schematic view of the structure of a first embodiment of the ventilation duct according to the present application;

FIG. 3 is a schematic view showing a partial structure of a second embodiment of the air duct according to the present application;

FIG. 4 is a schematic view showing a partial structure of a third embodiment of an air duct according to the present application;

fig. 5 is a schematic view of the structure of a fourth embodiment of the air duct according to the present application;

fig. 6 is a schematic view of the structure of a fifth embodiment of the air duct according to the present application;

fig. 7 is a schematic view showing a partial structure of a sixth embodiment of the air duct according to the present application;

fig. 8 is a schematic view showing a partial structure of a seventh embodiment of an air duct according to the present application;

Fig. 9 is a schematic view of the structure of an eighth embodiment of the air duct according to the present application;

FIG. 10 is a schematic view of a partially cut-away configuration of the vent in cooperation with a battery compartment according to the present application;

fig. 11 is a schematic view of a ninth embodiment of an air duct according to the present application;

FIG. 12 is an enlarged schematic view of the portion A in FIG. 11;

fig. 13 is a schematic view of a tenth embodiment of the air duct according to the present application;

Fig. 14 is a schematic view of the structure of an eleventh embodiment of the air duct according to the present application.

Reference numerals illustrate:

10. A case;

20. A battery compartment; 21. a frame; 22. a single battery;

30. An air duct; 31. a first air duct; 32. a second air duct; 33. an air inlet section; 34. an air supply section; 35. a ventilation chamber;

40. an air inlet; 41. a first inlet; 42. a second inlet;

50. An air supply port; 51. a sub-aperture; 52. a first outlet; 521. a first tail port; 53. a second outlet; 531. a second tail port; 54. an end opening part; 55. a middle opening;

60. An air supply device;

70. a gap;

80. A partition plate; 81. a first splitter plate;

90. And a second flow dividing plate.

Wherein the dashed boxes in fig. 2, 5, 6, 9, 11-13 represent battery bins; the broken lines in fig. 3, 4, 7, and 8 indicate the boundary lines between the port portion and the intermediate port portion.

Detailed Description

The application is further described in detail below by means of the figures and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other. The following discussion provides various embodiments of the application. Although each embodiment represents a single combination of applications, different embodiments of the application may be substituted or combined, and the application is therefore to be considered to include all possible combinations of the same and/or different embodiments described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then the application should also be considered to include embodiments comprising one or more of all other possible combinations including A, B, C, D, although such an embodiment may not be explicitly recited in the following. In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.

As shown in fig. 1, the energy storage container provided by the present application includes: the air supply device comprises a box body 10, a plurality of battery bins 20, an air duct 30 and an air supply device 60.

A plurality of battery compartments 20 are provided in the case 10.

The air duct 30 is provided with an air inlet 40 and a plurality of air outlets 50, and the air outlets 50 are configured to communicate with the battery compartment 20. In one embodiment of the present application, the air duct 30 is disposed inside the case 10, or the air duct 30 is disposed outside the case 10, and at least one air supply port 50 communicates with a battery compartment 20.

The air supply device 60 communicates with the air intake 40.

As shown in fig. 2 to 9, in the extending direction of the air duct 30, the flow area of the air supply port 50 disposed adjacent to the air inlet 40 is S1, and the flow area of the air supply port 50 disposed away from the air inlet 40 is S2, where S1 > S2.

In the air duct 30, the fluid closer to the air inlet 40 receives smaller resistance, the fluid flow speed is faster, and the fluid entering the air supply outlet 50 is smaller, so that the energy storage container provided by the application has the advantages that the larger the overflow area of the air supply outlet 50 arranged on the air duct 30 closer to the air inlet 40 is, the flow of the fluid entering each air supply outlet 50 is basically the same, so that the heat exchange effect of each air supply outlet 50 on the battery compartment 20 is the same, namely, the gradual flow distribution of the fluid in the air duct 30 is realized, the air outlet of each air supply outlet 50 is accurately controlled to be consistent, the temperature difference of the battery compartments 20 in different areas is reduced, and the purpose of uniform heat dissipation of the battery is achieved.

As shown in fig. 2, in one embodiment of the present application, the width of the air supply opening 50 disposed adjacent to the air inlet 40 is greater than the width of the air supply opening 50 disposed away from the air inlet 40 in the extending direction of the air path 30.

Under the condition that the ventilation area of the air inlet 40 is gradually reduced, the length of the air inlet 40 is unchanged, so that the length of the air inlet 40 is matched with the size of the battery compartment 20, and fluid sent from the air inlet 40 can effectively cover the single battery 22 in the battery compartment 20 to effectively cool the single battery 22 in the battery compartment 20.

As shown in fig. 3 to 9, in one embodiment of the present application, the length direction L2 of the air supply port 50 intersects with the extending direction L1 of the air duct 30.

The air outlet 50 includes two port portions 54 and one intermediate port portion 55, and the two port portions 54 are located at both ends of the intermediate port portion 55 in the longitudinal direction L2 of the air outlet 50.

In the longitudinal direction L2 of the air blowing port 50, the length D1 of the port 54 is equal to the length D2 of the intermediate port 55, and the flow area of the port 54 is larger than the flow area of the intermediate port 55.

Since the air outlet 50 is elongated, the flow rate of the fluid is faster and slower as the resistance of the fluid received by the fluid closer to both ends of the air outlet 50 is larger, and the flow rate of the fluid passing through the portion is smaller, and in addition, when the cross-sectional shape of the air duct 30 is rectangular, both ends of the air outlet 50 are disposed closer to the side wall of the air duct 30, and the flow rate of the fluid is faster and slower as the fluid receives the resistance of the fluid closer to the side wall, and the flow rate of the fluid passing through both ends of the air outlet 50 is smaller, the flow area of the port 54 is larger than the flow area of the intermediate port 55, so that the flow rates of the fluid passing through the air outlet 50 are substantially the same throughout the portion, and the flow rates of the fluid received by the portions of the battery compartment 20 are substantially the same, thereby achieving uniform heat exchange with the portions in the battery compartment 20.

Several embodiments of the air supply opening are specifically described below with reference to the accompanying drawings.

Example 1

As shown in fig. 3 to 5, the port 54 communicates with the intermediate port 55, that is, the air inlet 50 has a hole structure formed continuously. It should be understood by those skilled in the art that the air outlet 50 may include the port 54 and the intermediate port 55, and may include other portions other than the port 54 and the intermediate port 55, so long as the port 54 is ensured to be in communication with the intermediate port 55, which is not specifically described herein.

The structure enables the air supply outlet to have a larger overflow area, so that fluid can quickly enter the battery compartment to quickly exchange heat with all parts in the battery compartment, and therefore, the fluid can quickly exchange heat with all parts in the battery compartment 20 while ensuring that the fluid uniformly exchanges heat with all parts in the battery compartment 20.

As shown in fig. 3 and 4, in one embodiment of the present application, at least a portion of the outlet 54 has a width greater than the maximum width of the intermediate opening 55 in the width direction L3 of the air outlet 50, and the length direction L2 is perpendicular to the width direction L3.

Under the condition that the flow rate of the fluid passing through the air supply outlet 50 is basically the same, the whole overflow area of the air supply outlet is reduced, so that the air duct wall of the air duct 30 is ensured to have higher strength, the probability that the air duct 30 is deformed due to the impact of external force is reduced, the use reliability of the air duct 30 is improved, and the market competitiveness of products is further improved.

As shown in fig. 5, in one embodiment of the present application, in the longitudinal direction L2 of the air supply port 50, the flow area of the air supply port 50 becomes gradually smaller from both ends of the air supply port toward the middle.

The structure further reduces the whole overflow area of the air supply outlet, thereby further ensuring that the air duct wall of the air duct 30 has higher strength, reducing the probability of deformation of the air duct 30 caused by external impact, further improving the use reliability of the air duct 30 and further increasing the market competitiveness of products.

As shown in fig. 6 to 9, in one embodiment of the present application, the air supply port 50 includes a plurality of sub-holes 51 spaced apart in the length direction L2 of the air supply port 50.

The port portion 54 includes at least one sub-aperture 51 and the intermediate port portion 55 includes at least one sub-aperture 51.

The air supply port may include a port portion and a middle port portion, and may include other portions except the port portion and the middle port portion, and the other portions include at least one sub-hole, which is not described herein.

In the above configuration, as shown in fig. 7 and 8, the length of the port portion is the length between the two dividing lines at the both ends of the port portion, and the length of the intermediate portion is the length between the two dividing lines at the both ends of the intermediate portion.

The larger the open area on the panel is, the larger the influence on the panel strength is, and the structure enables a plurality of sub holes 51 with smaller open areas to form an air supply outlet 50, so that the air duct wall of the air duct 30 is ensured to have higher strength under the condition that the flow rate of the fluid passing through the air supply outlet 50 is basically the same, the probability that the air duct 30 is deformed due to the impact of external force is reduced, the use reliability of the air duct 30 is improved, and the market competitiveness of products is further improved.

In one embodiment of the present application, as shown in fig. 7, among the plurality of sub-holes 51, the sub-hole 51 located at the port portion 54 has a larger flow area than the sub-hole 51 located at the intermediate port portion 55. In another embodiment of the present application, as shown in fig. 8, the flow area of each sub-hole 51 is the same, and the number of sub-holes 51 at the port portion 54 is greater than the number of sub-holes 51 at the intermediate port portion 55.

The above structure makes the flow rate of the fluid passing through the sub-holes of the port portion substantially the same as the flow rate of the fluid passing through the sub-holes of the intermediate port portion even though the flow rate of the fluid passing through the air supply port 50 is substantially the same throughout, so that the flow rate of the fluid received by each portion of the battery compartment 20 is substantially the same, thereby achieving uniform heat exchange with each portion in the battery compartment 20.

As shown in fig. 10, in one embodiment of the present application, the battery compartment 20 includes a frame 21 and a plurality of unit batteries 22, and a gap 70 is formed between at least one side of the unit batteries 22 and the frame 21, and the air supply opening 50 is disposed at a position corresponding to the gap 70. In one embodiment of the present application, a gap 70 is provided between each side of the battery cell 22 and the frame 21.

The air supply outlet 50 is arranged corresponding to the gap 70, and the fluid blown out from the air supply outlet 50 can flow into the battery compartment 20 from the gap 70 due to smaller obstruction in the flowing process of the fluid in the gap 70, so that the fluid can rapidly cool the single battery 22, and rapid heat exchange with a plurality of single batteries 22 in the battery compartment 20 is realized.

As shown in fig. 11 and 12, in one embodiment of the present application, the air duct 30 includes a first air duct 31 and a second air duct 32, a partition 80 is provided between the first air duct 31 and the second air duct 32, the air inlet 40 includes a first inlet 41 and a second inlet 42, and the air outlet 50 includes a first outlet 52 and a second outlet 53.

The first inlet 41 and the first outlet 52 are disposed on the first air duct 31, and the first outlet 52 farthest from the first inlet 41 in the first air duct 31 is the first tail 521.

The second inlet 42 and the second outlet 53 are disposed on the second air duct 32, and the second outlet 53 farthest from the second inlet 42 in the second air duct 32 is a second tail 531.

The first and second taps 521 and 531 communicate with the same battery compartment 20.

The first air duct 31 and the second air duct 32 respectively send fluid to the plurality of battery bins 20 in different battery bin 20 groups, and as the first tail port 521 and the second tail port 531 are far away from the air inlet 40, in some battery bins which are arranged in a special shape, less fluid enters the first tail port 521 and the second tail port 531, so that the first tail port 521 and the second tail port 531 send fluid to one battery bin 20 at the same time, so that the flow rate of the fluid flowing into the battery bin 20 is basically the same as the flow rate of the fluid flowing into other battery bins 20, and the cooling uniformity of the battery bins 20 which are arranged in the special shape is ensured. In addition, the air duct 30 has a simple structure, is easy to produce and process, and reduces the number of the air ducts 30, thereby improving the assembly efficiency of products and further reducing the production and manufacturing costs of the products.

As shown in fig. 11 and 12, in one embodiment of the present application, when two air inlets 50 are in communication with a battery compartment 20, one air inlet 50 is a first tail port 521, and the other air inlet 50 includes a first outlet 52 and a second tail port 531.

The adoption of the structure further ensures that the flow rate of the fluid flowing into the battery compartment 20 is basically the same as the flow rate of the fluid flowing into other battery compartments 20, so that the cooling effect of the ventilating duct 30 on each battery compartment 20 is the same, namely the cooling uniformity of the irregularly-arranged battery compartments 20 is further ensured, and the heat exchange effect on the battery compartments 20 is further ensured.

In the above structure, the other battery compartment 20 adjacent to the battery compartment 20 also sends fluid from the second outlet 53 and the first outlet 52 at the same time, specifically, one air supply port 50 is the second outlet 53, and the other air supply port 50 includes the first outlet 52 and the second outlet 53.

The adoption of the structure further ensures that the flow rate of the fluid flowing into the battery compartment 20 is basically the same as the flow rate of the fluid flowing into other battery compartments 20, so that the cooling effect of the ventilating duct 30 on each battery compartment 20 is the same, namely the cooling uniformity of the irregularly-arranged battery compartments 20 is further ensured, and the heat exchange effect on the battery compartments 20 is further ensured.

As shown in fig. 11 and 12, in one embodiment of the present application, a first splitter plate 81 is disposed on the partition 80, and the first splitter plate 81 and the partition 80 enclose a ventilation cavity 35 with an opening, and the ventilation cavity 35 is located in the first air duct 31 and is in communication with the first air duct 31.

A first outlet 52 is located in the ventilation chamber 35, and the first outlet 52 and the second tail 531 form the air supply outlet 50.

The adoption of the structure further ensures that the flow rate of the fluid flowing into each battery compartment 20 is basically the same, so that the cooling effect of the ventilating duct 30 on each battery compartment 20 is the same, namely, the cooling uniformity of the irregularly-arranged battery compartments 20 is further ensured, and the heat exchange effect on the battery compartments 20 is further ensured.

As shown in fig. 13, in one embodiment of the present application, the air duct 30 includes an air inlet section 33 and an air supply section 34, a plurality of air inlets 50 are disposed in the air supply section 34, an air inlet 40 is disposed in the air inlet section 33, an extending direction of the air inlet section 33 intersects with an extending direction of the air supply section 34, and a second flow dividing plate 90 is disposed in the air inlet section 33.

The second flow dividing plate 90 is configured to divide the fluid entering from the air inlet 40 to reduce the flow velocity of the fluid, so that the fluid enters the air supply section 34 more gradually, and in addition, the second flow dividing plate 90 also plays a role in guiding the fluid, so that the fluid more smoothly turns and uniformly enters the air supply section 34, that is, the flow direction and the flow velocity of the fluid are changed by the second flow dividing plate 90, so that the fluid more uniformly enters the air supply section 34, so that the flow rate of the fluid entering each air supply opening 50 is basically the same, and the heat exchange effect of each air supply opening 50 on the battery compartment 20 is the same, thereby reducing the temperature difference of the battery compartments 20 in different areas, and achieving the purpose of uniform heat exchange with the battery.

As shown in fig. 13, in one embodiment of the present application, the number of the second flow dividing plates 90 is plural, and the plural second flow dividing plates 90 are uniformly spaced apart from the air inlet section 33. Specifically, the second flow dividing plate 90 extends in a direction coincident with the flow direction of the fluid.

The above structure can further make the fluid more uniformly enter the air supply section 34 to ensure that the flow rate of the fluid entering each air supply opening 50 is basically the same, so that the heat exchange effect of each air supply opening 50 on the battery compartment 20 is the same, thereby reducing the temperature difference of the battery compartments 20 in different areas and achieving the purpose of uniform heat exchange with the single batteries 22.

As shown in fig. 14, in one embodiment of the present application, the flow area of the air duct 30 becomes gradually smaller in the direction from the air inlet 40 to the air outlet 50.

The ventilation duct 30 is in a slope shape, so that the wind resistance in the ventilation duct 30 is reduced, vortex in the ventilation duct can be prevented, the flow rate of fluid entering each air supply opening 50 is basically the same, the heat exchange effect of each air supply opening 50 on the battery compartment 20 is the same, the temperature difference of the battery compartments 20 in different areas is reduced, and the purpose of uniform heat exchange with the single batteries 22 is achieved.

In the description of the present application, it should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, unless otherwise specifically defined and limited. The term "plurality" means two or more, unless expressly defined otherwise. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The application has been described above in connection with preferred embodiments, which are, however, exemplary only and for illustrative purposes. On this basis, the application can be subjected to various substitutions and improvements, and all fall within the protection scope of the application.

Claims (12)

1. An energy storage container, the energy storage container comprising:

A case;

the battery bins are arranged in the box body;

The ventilating duct is provided with an air inlet and a plurality of air supply outlets, and the air supply outlets are configured to be communicated with the battery bin; and

The air supply device is communicated with the air inlet;

And in the extending direction of the ventilating duct, the overflow area of the air supply opening adjacent to the air inlet is S1, and the overflow area of the air supply opening far away from the air inlet is S2, wherein S1 is more than S2.

2. The energy storage container of claim 1, wherein,

The length direction of the air supply port is intersected with the extending direction of the air duct;

The air supply port comprises two port parts and a middle port part, and the two port parts are respectively positioned at two ends of the middle port part in the length direction of the air supply port;

In the length direction of the air supply port, the length of the port part is equal to that of the middle port part, and the flow area of the port part is larger than that of the middle port part.

3. The energy storage container of claim 2, wherein,

The port portion communicates with the intermediate port portion.

4. The energy storage container of claim 3, wherein the container comprises a plurality of storage containers,

And in the width direction of the air supply outlet, the width of at least part of the port part is larger than the maximum width of the middle port part, and the length direction is perpendicular to the width direction.

5. The energy storage container of claim 4, wherein,

In the length direction of the air supply port, the flow area of the air supply port gradually becomes smaller from the two ends of the air supply port to the middle part.

6. The energy storage container of claim 2, wherein,

In the length direction of the air supply port, the air supply port comprises a plurality of sub holes which are arranged at intervals,

The port portion includes at least one of the sub-apertures and the intermediate mouth portion includes at least one of the sub-apertures.

7. The energy storage container of claim 6, wherein,

Among the plurality of sub-holes, the sub-hole located at the port portion has a larger flow area than the sub-hole located at the intermediate port portion.

8. The energy storage container of claim 1, wherein,

In the extending direction of the ventilating duct, the width of the air supply opening arranged adjacent to the air inlet is larger than the width of the air supply opening arranged far away from the air inlet.

9. The energy storage container of claim 1, wherein,

The battery compartment comprises a frame and a plurality of single batteries, a gap is formed between at least one side of each single battery and the frame, and the setting position of the air supply outlet corresponds to the gap.

10. The energy storage container of claim 1, wherein,

The ventilating duct comprises a first air duct and a second air duct, a partition plate is arranged between the first air duct and the second air duct, the air inlet comprises a first inlet and a second inlet, and the air supply outlet comprises a first outlet and a second outlet;

The first inlet and the first outlet are arranged on the first air duct, and the first outlet farthest from the first inlet in the first air duct is a first tail port;

The second inlet and the second outlet are arranged on the second air duct, and the second outlet farthest from the second inlet in the second air duct is a second tail port;

the first tail port and the second tail port are communicated with the same battery compartment.

11. The energy storage container of claim 10, wherein,

When two air supply outlets are communicated with one battery compartment, one air supply outlet is a first tail opening, and the other air supply outlet comprises a first outlet and a second tail opening.

12. The energy storage container of claim 11, wherein,

The partition plate is provided with a first flow dividing plate, a ventilation cavity with an opening is formed by the first flow dividing plate and the partition plate, and the ventilation cavity is positioned in the first air duct and communicated with the first air duct;

The first outlet is positioned in the ventilation cavity, and the first outlet and the second tail port form the air supply outlet.