A balanced air volume and anti-turbulence air duct structure for energy storage cabinet

Abstract

The present application discloses a balanced air volume and anti-turbulence air duct structure for an energy storage cabinet, characterized in that it includes an air flow inlet (100), an S-shaped air duct (200) and a plurality of diverter ports (300); one end of the air flow inlet (100) is connected to the air outlet of the air conditioner (410) outside the energy storage cabinet (400), and the other end is connected to the S-shaped air duct (200); a plurality of diverter ports (300) are arranged on the S-shaped air duct (200), and a plurality of diverter ports (300) are one-to-one matched with the battery packs (420) arranged inside the energy storage cabinet (400) to guide the air flow in the S-shaped air duct (200) to the corresponding battery packs (420). The cold and hot air introduced through the air flow inlet is evenly diverted to the horizontal air duct and blown out through the diverter ports to avoid the formation of turbulence. The cross-sectional area of ​​the S-shaped air duct gradually decreases from top to bottom, so that the air volume of the diverter port is not affected by the distance between the battery pack and the air flow inlet.

Description

Technical Field

[0001] The present application belongs to the field of energy storage technology, and specifically relates to a balanced air volume and anti-turbulence air duct structure for an energy storage cabinet. Background Art

[0002] There are several battery packs inside the energy storage cabinet. During the power supply process, the battery pack will generate a large amount of heat energy. If the heat energy cannot be effectively dissipated, the temperature inside the energy storage cabinet will rise sharply, affecting the normal use of the energy storage cabinet and even causing a fire. The energy storage cabinet located outdoors will drop to below zero in winter as the ambient temperature drops. The excessively low temperature inside the cabinet will reduce the charging and discharging performance of the battery pack and have an adverse effect on the conversion efficiency. Therefore, in order to keep the battery pack in the energy storage cabinet in a normal working state, it is very important to maintain the temperature inside the energy storage cabinet within a certain temperature range.

[0003] In order to maintain the temperature inside the energy storage cabinet, an industrial air conditioner is generally installed on the outer box of the energy storage cabinet, and an air inlet is set on the cabinet body of the energy storage cabinet. The air outlet of the air conditioner is connected to the air inlet. According to the monitored temperature inside the energy storage cabinet, the air conditioner cools the inside of the energy storage cabinet with cold air and heats the inside of the energy storage cabinet with hot air, so that the temperature inside the energy storage cabinet is maintained within a suitable working temperature range. However, due to the dense arrangement of battery packs inside the energy storage cabinet, the cold and hot air of the air conditioner cannot be evenly blown to each battery pack, resulting in poor temperature uniformity of the battery packs at different positions in the cabinet. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide an energy storage cabinet with a balanced air volume and anti-turbulence air duct structure to divert the cold and hot air flows blown into the energy storage cabinet by the air conditioner to solve the problems arising in the background technology.

[0005] The present application discloses an energy storage cabinet with balanced air volume and anti-turbulence air duct structure, including an air flow inlet, an S-shaped air duct and a plurality of diversion ports;

[0006] One end of the air flow inlet is connected to the air outlet of the air conditioner outside the energy storage cabinet, and the other end is connected to the S-shaped air duct;

[0007] The plurality of diversion ports are arranged on the S-shaped air duct, and the plurality of diversion ports are matched one by one with the battery packs arranged inside the energy storage cabinet to guide the airflow in the S-shaped air duct to the corresponding battery packs.

[0008] Furthermore, the S-shaped air duct includes a plurality of horizontal air ducts and a plurality of vertical air ducts, and the horizontal air ducts and the vertical air ducts are sequentially connected at intervals from top to bottom to form the S-shaped air duct.

[0009] Furthermore, the diversion port is arranged on the horizontal air duct.

[0010] Furthermore, the cross-sectional area of ​​the S-shaped air duct gradually decreases from top to bottom. Furthermore, the cross-sectional area of ​​adjacent horizontal air ducts decreases by 5%-15%.

[0011] Furthermore, the gradient of the cross-sectional contraction of the horizontal air duct along the airflow direction is α, and α is 5-20°.

[0012] Furthermore, the cross-section of the S-shaped air duct is one of rectangular, circular, elliptical and semicircular.

[0013] Furthermore, the diversion ports are evenly distributed on the horizontal air duct.

[0014] Furthermore, the diversion port is one of rectangular, circular and elliptical.

[0015] Furthermore, the S-shaped air duct is formed in one piece.

[0016] This application has the following beneficial effects:

[0017] The present application discloses a balanced air volume and anti-turbulence air duct structure, which includes an air flow inlet, an S-shaped air duct and a plurality of diversion ports; one end of the air flow inlet is connected to the air outlet of the air conditioner outside the energy storage cabinet, and the other end is connected to the S-shaped air duct; a plurality of diversion ports are arranged on the S-shaped air duct, and the plurality of diversion ports are one-to-one with the battery packs arranged inside the energy storage cabinet to guide the air flow in the S-shaped air duct to the corresponding battery pack. The air duct structure diverts the cold air or hot air blown out of the diversion port on the S-shaped air duct and delivers it to each battery pack. The S-shaped air duct includes a plurality of horizontal air ducts and a plurality of vertical air ducts, which are connected in sequence from top to bottom to form an S-shaped air duct; the diversion port is arranged on the horizontal air duct. The cold air or hot air introduced through the air flow inlet is evenly diverted from top to bottom by the S-shaped air duct to the horizontal air duct and blown out through the diversion port to avoid turbulence in the energy storage cabinet. The cross-sectional area of ​​the S-shaped air duct gradually decreases from top to bottom, so that the air volume diverted from the diversion port to the battery pack is not affected by the distance between the battery pack and the air flow inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a stereoscopic diagram of the energy storage cabinet balanced air volume and anti-turbulence air duct structure provided in some embodiments of the present application,

[0019] Figure 2 It is a schematic diagram of the installation of the energy storage cabinet balanced air volume and anti-turbulence air duct structure provided in some embodiments of the present application.

[0020] Description of reference numerals:

[0021] 100. air inlet, 200. S-shaped air duct, 211 horizontal air duct, 212. vertical air duct, 300. diversion port, 400. energy storage cabinet, 410. air conditioner, 420. battery pack. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of this application, the following Figure 1 and attached Figure 2 The present application is described in more detail. The preferred embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly understood.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0024] It should be noted that, in the description of the present application, the terms "inside", "outside", "upper", "lower", "top", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are merely for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, if there are descriptions involving "first", "second", etc. in the implementation of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features.

[0025] See also Figure 1 As shown, the present application discloses a balanced air volume and anti-turbulence air duct structure for an energy storage cabinet, the diverter device includes an air flow inlet 100, an S-shaped air duct 200 and a plurality of diverter ports 300; one end of the air flow inlet 100 is connected to the air outlet of an air conditioner 410 outside the energy storage cabinet 400, and the other end is connected to the S-shaped air duct 200; the plurality of diverter ports 300 are arranged on the S-shaped air duct 200, and the plurality of diverter ports 300 are one-to-one matched with the battery packs 420 arranged inside the energy storage cabinet 400 to guide the air flow in the S-shaped air duct 200 to the corresponding battery packs 420.

[0026] In some embodiments, the cross-sectional area of ​​the S-shaped air duct 200 gradually decreases from top to bottom.

[0027] According to the Bernoulli equation of fluid mechanics:

[0028]

[0029] In formula (1), P is the pressure at a point in the fluid, V is the flow velocity of the fluid at that point, ρ is the fluid density, and g is the gravitational acceleration.

[0030] Q=SV (2)

[0031] In formula (2), Q is the flow rate, V is the velocity of the fluid at that point, and S is the cross-sectional area.

[0032] According to formula (1), for fluids at the same height, the pressure is inversely proportional to the square of the flow velocity. Due to the wind resistance of the S-shaped air duct 200, the pressure decreases, so that the fluid at the end of the air supply duct has the lowest pressure and the highest wind speed. According to formula (2), in the above embodiment, the S-shaped air duct 200 adopts a tapered design, and the cross-sectional area of ​​the S-shaped air duct 200 gradually decreases from top to bottom. Therefore, the air volume diverted from the diversion port 300 on the S-shaped air duct 200 to the battery pack 420 is not affected by the distance between the battery pack 420 and the air flow inlet.

[0033] In some embodiments, the S-shaped air duct 200 includes a plurality of horizontal air ducts 211 and a plurality of vertical air ducts 212 , and the horizontal air ducts 211 and the vertical air ducts 212 are sequentially connected and spaced from top to bottom to form the S-shaped air duct 200 .

[0034] In the above embodiment, the diversion port 300 can be arranged on the horizontal air duct 211; Figure 1 As shown, the S-shaped air duct 200 includes a plurality of horizontal air ducts 211 and a plurality of vertical air ducts 212, which are sequentially connected from top to bottom to form the S-shaped air duct 200; the diversion port 300 is arranged on the horizontal air duct 211, and the cold air or hot air introduced through the air flow inlet 100 is evenly diverted from top to bottom by the S-shaped air duct 200 to each horizontal air duct 211 and blown out through the diversion port 300. Figure 2 As shown, the horizontal air duct 211 of the energy storage cabinet's balanced air volume and anti-turbulence air duct structure is opposite to the battery packs 420 arranged inside the energy storage cabinet 400. As a result, the cold air or hot air blown out of the diversion port 300 on the horizontal air duct 211 is diverted to each battery pack 420, and the temperature of the battery packs 420 at different positions in the cabinet is uniform.

[0035] In some embodiments, the cross-sectional area of ​​the S-shaped air duct 200 gradually decreases from top to bottom by gradually reducing the cross-sectional area of ​​the horizontal air duct 211. In some embodiments, the cross-sectional area of ​​adjacent horizontal air ducts 211 decreases by 5%-15%. That is, the cross-sectional area of ​​the first horizontal air duct 211 connected to the airflow inlet 100 and the next second horizontal air duct 211, the third horizontal air duct, and finally the last horizontal air duct are decreasing in a decreasing trend, and the cross-sectional area decreases by 5%-15%.

[0036] like Figure 1 As shown, in one embodiment of the above-mentioned implementation mode, the cross-sectional area of ​​the horizontal air duct 211 is reduced by 5%. There are seven layers of horizontal air ducts 211, and the cross-sectional areas of two connected horizontal air ducts are reduced by 5% successively; that is, the cross-sectional area of ​​the topmost horizontal air duct 211 connected to the airflow inlet 100 and the second horizontal air duct 211 adjacent thereto are reduced by 5%; the cross-sectional area of ​​the second horizontal air duct 211 is reduced by 5% compared with the cross-sectional area of ​​the third horizontal air duct 211 adjacent thereto; until the cross-sectional area of ​​a horizontal air duct 211 at the bottom layer is reduced by 35% compared with the cross-sectional area of ​​the topmost horizontal air duct 211.

[0037] In other embodiments, the gradient of cross-sectional contraction of the horizontal air duct 211 along the airflow direction is α, and α is 5-20°, that is, the angle from the input end to the end of the horizontal air duct 211 relative to the horizontal plane along the airflow direction is 5-20°.

[0038] In one example of the above implementation, the cross-sectional contraction gradient of the horizontal air duct 211 is 10°.

[0039] In some embodiments, the cross-section of the S-shaped air duct 200 is one of a rectangular, circular, elliptical, and semicircular shape.

[0040] In some embodiments, the diversion ports 300 are evenly distributed on the horizontal air duct 211 .

[0041] In some embodiments, the split port 300 is one of a rectangular, circular, and elliptical shape.

[0042] In some embodiments, the S-shaped air duct 200 is integrally formed.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A balanced air volume and anti-turbulence air duct structure for an energy storage cabinet, characterized in that: It comprises an air flow inlet (100), an S-shaped air duct (200) and a plurality of diversion ports (300); One end of the air flow inlet (100) is in communication with the air outlet of the air conditioner (410) outside the energy storage cabinet (400), and the other end is in communication with the S-shaped air duct (200); The plurality of diversion openings (300) are arranged on the S-shaped air duct (200), and the plurality of diversion openings (300) are matched one by one with the battery packs (420) arranged inside the energy storage cabinet (400) to guide the airflow in the S-shaped air duct (200) to the corresponding battery packs (420).

2. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 1 is characterized in that: The S-shaped air duct (200) comprises a plurality of horizontal air ducts (211) and a plurality of vertical air ducts (212), wherein the horizontal air ducts (211) and the vertical air ducts (212) are sequentially connected at intervals from top to bottom to form the S-shaped air duct (200).

3. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 2 is characterized in that: The diversion port (300) is arranged on the horizontal air duct (211).

4. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to any one of claims 1 to 3, characterized in that: The cross-sectional area of ​​the S-shaped air duct (200) gradually decreases from top to bottom.

5. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 2, characterized in that: The cross-sectional area of ​​adjacent horizontal air ducts (211) is reduced by 5%-15%.

6. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 2, characterized in that: The gradient of the cross-sectional contraction of the horizontal air duct (211) along the airflow direction is α, and α is 5-20°.

7. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 1, characterized in that: The cross section of the S-shaped air duct (200) is one of a rectangular, circular, elliptical and semicircular shape.

8. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 1, characterized in that: The diversion ports (300) are evenly distributed on the horizontal air duct (211).

9. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 1, characterized in that: The diversion port (300) is in the shape of a rectangle, a circle, or an ellipse.

10. The energy storage cabinet balanced air volume and anti-turbulence air duct structure according to claim 1, characterized in that: The S-shaped air duct (200) is integrally formed.

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