Wind uniform device and energy storage battery cabinet

Abstract

The application relates to the energy storage field and discloses a wind uniformizing device and an energy storage battery cabinet, which comprise a wind guide plate, a cover and a baffle. The wind guide plate is provided with a wind guide channel, the wind guide channel is provided with an air inlet and an air outlet, the air inlet is used for abutting an air outlet of an air conditioner in the energy storage battery cabinet; the cover is arranged on the wind guide plate and jointly encloses the wind guide plate to form an air outlet cavity, the air outlet cavity is communicated with the wind guide channel through the air outlet; the cover comprises a back plate and a plurality of side plates connected to the side edges of the back plate; the back plate is used for blocking airflow passing through the air outlet, the plurality of side plates are all provided with through holes, the through holes all communicate the air outlet cavity with the inside of the energy storage battery cabinet; the baffle is located in the air outlet cavity and exposed at the air outlet; in the direction from the air inlet to the air outlet, the air inlet, the air outlet, the baffle and the back plate are sequentially and oppositely arranged. By adopting the technical scheme, the application can uniformly distribute airflow in the central region and the side edge region of the air outlet of the air conditioner, so that the temperature of the battery modules at all positions in the energy storage battery cabinet is balanced.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and in particular to a wind distribution device and an energy storage battery cabinet. Background Technology

[0002] Energy storage battery cabinets typically include multiple battery modules, a high-voltage box, an energy storage converter, and an air conditioner. The voltage from multiple battery modules connected in series for charging and discharging is directly input to the high-voltage box. This voltage is then controlled by pre-charging and charging / discharging circuits within the high-voltage box and connected to the energy storage converter. The converter then converts the voltage into three-phase power via a bidirectional inverter for grid connection. The air conditioner regulates the temperature of each battery module, ensuring the internal temperature of the energy storage battery cabinet remains within a suitable range. However, the air conditioner's large vent openings can lead to different airflow speeds between the central and side areas, which is detrimental to temperature uniformity among the battery modules within the cabinet. Utility Model Content

[0003] The purpose of this application is to provide a uniform airflow device and an energy storage battery cabinet, which aims to uniformly distribute the airflow in the central and side areas of the air conditioning outlet to improve the temperature balance of the battery modules in different locations inside the energy storage battery cabinet.

[0004] According to a first aspect of this application, a wind equalization device is provided, comprising: The air guide plate is equipped with an air guide channel, which has an air inlet and an air outlet. The air inlet is used to connect to the air conditioning outlet inside the energy storage battery cabinet. A cover is provided on the air guide plate and together with the air guide plate, they enclose an air outlet cavity, which is connected to the air guide channel through the air outlet. The cover includes a back plate and multiple side plates connected to the side of the back plate. The back plate is used to block the airflow through the air outlet. Each of the multiple side plates has a through hole, which connects the air outlet cavity to the interior of the energy storage battery cabinet. A baffle is located inside the air outlet cavity and exposed at the air outlet; along the direction from the air inlet to the air outlet, the air inlet, the air outlet, the baffle, and the back plate are arranged sequentially at intervals and opposite to each other.

[0005] Optionally, the baffle has multiple air filter holes of the same diameter, and all of the multiple air filter holes are used to uniformly pass the airflow through the air outlet.

[0006] Optionally, the baffle includes a baffle body and a connecting part; the connecting part is connected to the baffle body, and the baffle body is fixed to the back plate through the connecting part; Along the direction from the air inlet to the air outlet, the air inlet, the air outlet, the baffle body, and the back plate are arranged sequentially at intervals and opposite to each other.

[0007] Optionally, the opening area of ​​the air inlet is larger than the opening area of ​​the air outlet, and the cross-sectional area of ​​the air guide channel gradually decreases along the direction from the air inlet to the air outlet.

[0008] Optionally, the outer contour shape of the air inlet is similar to that of the air outlet, and the outer contour shape of the air outlet matches the outer contour shape of the baffle body.

[0009] Optionally, the baffle body covers the air outlet along a direction perpendicular to the baffle body.

[0010] Optionally, the air guide plate includes an air guide plate body and a first end wall connected to the air guide plate body; the air guide plate body itself defines the air guiding channel, and the air guide plate body has the air inlet and the air outlet; The cover includes a second end wall; the second end wall is connected to each of the side plates respectively, and the second end wall is fixed to the first end wall by bolts, so that the back plate, the multiple side plates and the air guide plate body together enclose the air outlet cavity.

[0011] Optionally, the air distribution device includes a sealing gasket; the sealing gasket is fixed to the surface of the first end wall facing away from the second end wall, and the sealing gasket is used to seal the gap between the air inlet and the air conditioning outlet of the energy storage battery cabinet.

[0012] According to a second aspect of this application, an energy storage battery cabinet is provided, including an air conditioner and an air distribution device as described above; the air distribution device is disposed inside the energy storage battery cabinet and connected to the air outlet of the air conditioner.

[0013] Optionally, the energy storage battery cabinet includes a mounting bracket; the mounting bracket is fixed to the side surface of the back plate opposite to the air outlet cavity, and the mounting bracket is used to fix the air distribution device to the frame inside the energy storage battery cabinet.

[0014] The beneficial effects of the embodiments of this application are: the air distribution device involved in this application sets baffles at the interval positions of the air outlet, and the mixed airflow through the air outlet is blocked by the baffles and then evenly distributed from all directions of the baffles into the air outlet cavity, so that the airflow speed in each area of ​​the energy storage battery cabinet is not much different, thereby improving the temperature balance of the battery modules in each area of ​​the energy storage battery cabinet. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a front view of an air distribution device provided in one embodiment of this application; Figure 2 for Figure 1 A cross-sectional schematic diagram of the air distribution device is shown, along with the airflow path. Figure 3 for Figure 1 An exploded view of the structure of the air distribution device is shown. Figure 4 for Figure 1 One axonometric view of the air distribution device is shown; Figure 5 for Figure 1 Another axonometric view of the air distribution device is shown; Explanation of reference numerals in the attached figures: 1. Air guide plate; 1c. Air guide channel; 1a. Air inlet; 1b. Air outlet; 11. Air guide plate body; 12. First end wall; 1d. Air outlet cavity; 2. Cover; 21. Back plate; 22. Side plate; 22a. Through hole; 23. Second end wall; 3. Baffle; 3a. Air filter hole; 31. Baffle body; 32. Connecting part; 4. Sealing gaskets; 5. Install the bracket. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0018] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0019] In the description of this application, it should be noted that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] In the description of this application, it should be noted that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0021] The technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see Figures 1 to 5 One embodiment of this application provides an air distribution device including an air guide plate 1, a cover 2, and a baffle 3. The air guide plate 1 has an air guide channel 1c, which has an air inlet 1a and an air outlet 1b. The cover 2 covers the air guide plate 1 and together with the air guide plate 1 forms an air outlet cavity 1d, which is connected to the air guide channel 1c through the air outlet 1b. The baffle 3 is located inside the air outlet cavity 1d and exposed at the air outlet 1b. Along the direction from the air inlet 1a to the air outlet 1b, the air inlet 1a, the air outlet 1b, the baffle 3, and the back plate 21 are arranged sequentially at intervals and opposite to each other. The air inlet 1a is used to connect to the air conditioning outlet inside the energy storage battery cabinet. The cover 2 has a through hole 22a that connects the air outlet cavity 1d to the inside of the energy storage battery cabinet.

[0023] For air guide plate 1, such as Figure 3As shown, in some embodiments, the air guide plate 1 includes an air guide plate body 11 and a first end wall 12. The outer contour shape of the air guide plate body 11 matches the outer contour shape of the air conditioner outlet, so as to cover the air conditioner outlet after docking with it. The air guide plate body 11 defines an air guiding channel 1c and has the aforementioned air inlet 1a and air outlet 1b. The first end wall 12 is connected to the air guide plate body 11 and is used to cooperate with and fix the cover 2 to the cover 2. Exemplarily, the air guide plate body 11 is recessed with its outer contour edge facing the center. The outer contour shape of the air inlet 1a is similar to that of the air outlet 1b, both being similar rectangles, wherein the air inlet 1a is located on the non-recessed side of the air guide plate body 11, and the air outlet 1b is located on the recessed side of the air guide plate body 11. The first end wall 12 is integrally formed around the periphery of the air guide plate body 11 and surrounds the air inlet 1a. The first end wall 12 has multiple assembly holes for bolts to pass through, and the first end wall 12 can be fixed to the cover 2 by bolts.

[0024] like Figure 2 As shown, the opening area of ​​the air inlet 1a is larger than that of the air outlet 1b. Along the direction from the air inlet 1a to the air outlet 1b, the cross-sectional area of ​​the air guide channel 1c gradually decreases. The gradual decrease in the cross-sectional area of ​​the air guide channel 1c increases the airflow velocity, causing the airflow with different velocities and temperatures in the central and side areas of the air conditioner outlet to be disturbed and mixed within the air guide channel, and then uniformly entering the air outlet cavity 1d through the air outlet 1b.

[0025] For housing 2, such as Figure 2 As shown, in some embodiments, the housing 2 includes a back plate 21, multiple side plates 22, and a second end wall 23. The multiple side plates 22 are respectively connected to the periphery of the back plate 21 and surround the back plate 21 to form an air outlet cavity 1d with one open side. The second end wall 23 is respectively connected to the multiple side plates 22 and is disposed opposite to the first end wall 12, so that the air guide plate body 11 closes the opening. Along the direction from the air inlet 1a to the air outlet 1b, the air inlet 1a, the air outlet 1b, the baffle 3, and the back plate 21 are sequentially spaced and disposed opposite to each other. Exemplarily, the outer contour shape of the back plate 21 matches the outer contour shape of the air guide plate body 11, and the multiple side plates 22 are integrally formed around the periphery of the back plate 21. The outer contour shape of the second end wall 23 matches the outer contour shape of the first end wall 12. The second end wall 23 abuts against the first end wall 12. The second end wall 23 has multiple mounting holes. The positions and sizes of the multiple mounting holes of the second end wall 23 correspond one-to-one with the multiple mounting holes of the first end wall 12. Each bolt is screwed and fixed to each mounting hole of the first end wall 12 and each mounting hole of the second end wall 23.

[0026] Continue as Figure 3As shown, in some embodiments, multiple side panels 22 are provided with through holes 22a, which connect the air outlet cavity 1d to the interior of the energy storage battery cabinet. For example, the back panel 21 is a solid plate, and the multiple side panels 22 are perforated plates. Each side panel 22 is provided with multiple regular hexagonal through holes 22a to facilitate the even distribution of airflow entering the air outlet cavity 1d through the air outlet 1b to the interior of the energy storage battery cabinet.

[0027] For baffle 3, such as Figure 3 As shown, in some embodiments, the baffle 3 includes a baffle body 31 and a connecting portion 32. The baffle body 31 is exposed at the air outlet 1b, and the connecting portion 32 is connected to the baffle body 31. The baffle body 31 is fixed to the back plate 21 by the connecting portion 32. The air inlet 1a, air outlet 1b, baffle body 31, and back plate 21 are sequentially spaced and arranged opposite to each other along the direction from the air inlet 1a to the air outlet 1b. Exemplarily, the outer contour shape of the baffle body 31 matches the outer contour shape of the air outlet 1b; both are rectangular. The baffle body 31 covers the air outlet 1b along a direction perpendicular to the baffle body 31. There are two connecting portions 32, each formed by continuous bending from opposite sides of the baffle body 31. Both connecting portions 32 abut against the back plate 21 and are fixed to the back plate 21 by, but not limited to, bolts, so that at least a portion of the baffle body 31 is exposed at the air outlet 1b. In this embodiment, a baffle 3 is provided at the interval position of the air outlet 1b. After the mixed airflow through the air outlet 1b is blocked by the baffle 3, it is evenly distributed from the periphery of the baffle 3 into the air outlet cavity 1d, so that the airflow no longer directly rushes to a specific area on the back plate 21, further avoiding the situation where the local airflow velocity is too high and the airflow in other places is insufficient.

[0028] Continue as Figure 1 As shown, the baffle 3 has multiple filter holes 3a with the same diameter, all of which are used to uniformly pass the airflow through the air outlet 1b. Exemplarily, the baffle body 31 has multiple filter holes 3a, each of which is circular in shape, has the same diameter, and the distance between any two adjacent filter holes 3a is also equal. In this embodiment, the design of the filter holes 3a can further refine the airflow, allowing air to diffuse evenly from multiple small holes, rather than simply flowing along the edge of the baffle 3, thus enhancing the breadth and uniformity of air distribution. It should be noted that the effectiveness of refining the airflow is related to the diameter and number of filter holes 3a, but not to the distance between them. Specifically, the smaller the diameter of the filter holes 3a and the more filter holes 3a there are, the better the effect of refining the airflow; the larger the diameter of the filter holes 3a and the fewer filter holes 3a there are, the worse the effect of refining the airflow.

[0029] Of course, the installation method between the baffle 3 and the cover 2 is not limited to this. For example, in some embodiments, the baffle body 31 is no longer fixed to the back plate 21 by the connecting part 32, but is fixed to the back plate 21 by welding multiple legs integrally formed in the baffle body 31. In addition, the baffle 3 is not limited to being fixed to the cover 2. For example, in some embodiments, the baffle body 31 is integrally formed or welded to the periphery of the air outlet 1b of the air guide plate 1 by the support arm, thereby the air outlet 1b and the baffle body 31 are spaced apart and opposite to each other along the direction from the air inlet 1a to the air outlet 1b.

[0030] In some embodiments, the air guide plate 1, the housing 2, and the baffle 3 are all made of aluminum. Using aluminum for all the aforementioned components significantly reduces the overall weight of the air distribution device, thus reducing the burden of installing and transporting the energy storage battery cabinet during hoisting and transportation. Furthermore, the air distribution device better facilitates airflow and heat transfer, improving the overall heat dissipation effect of the air conditioner.

[0031] like Figure 3 As shown, to reduce airflow leakage at the air conditioner outlet, in some embodiments, the air distribution device includes a sealing gasket 4. The sealing gasket 4 is fixed to the surface of the first end wall 12 opposite to the second end wall 23 by, but not limited to, adhesive bonding, and seals the gap between the air inlet 1a and the air conditioner outlet when the air distribution device is aligned with the air outlet 1b. Exemplarily, the sealing gasket 4 is made of EPDM rubber, which has excellent elasticity and can quickly recover its original shape after compression and deformation. This allows the sealing gasket 4 to effectively seal against the air conditioner outlet, ensuring a tight seal. Even in environments with significant vibration, pressure changes, or temperature fluctuations, it maintains stable sealing performance.

[0032] In summary, the air distribution device involved in this application gathers and then disperses airflows with different wind speeds in the central and side areas of the air conditioning outlet. The dispersed airflow has a relatively uniform wind speed and temperature, so that the wind characteristics discharged into each area of ​​the energy storage battery cabinet are not much different, thereby improving the temperature balance of the battery modules in each area of ​​the energy storage battery cabinet.

[0033] Based on the same technical concept, one embodiment of this application also provides an energy storage battery cabinet, which includes a cabinet body, an air conditioner, and an air distribution device as mentioned in any of the above embodiments. The air conditioner is installed and fixed to the cabinet body, and the air outlet 1b of the air conditioner is located at the cabinet door of the cabinet body. Figure 5 As shown, the mounting bracket 5 is fixed to the side surface of the back plate 21 away from the air outlet cavity 1d by bolts, but not limited to bolts. The air distribution device is fixed to the frame of the cabinet body by the mounting bracket 5, but not limited to the mounting bracket 5. When the cabinet door is closed, the air outlet of the air conditioner is covered by the baffle body of the air distribution device, so as to gather the airflow with different wind speeds in the central area and the side area of ​​the air outlet into the air outlet cavity 1d.

[0034] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A wind equalization device, characterized in that, include: The air guide plate is equipped with an air guide channel, which has an air inlet and an air outlet. The air inlet is used to connect to the air conditioning outlet inside the energy storage battery cabinet. A cover is provided on the air guide plate and together with the air guide plate, they enclose an air outlet cavity, which is connected to the air guide channel through the air outlet. The cover includes a back plate and multiple side plates connected to the side of the back plate. The back plate is used to block the airflow through the air outlet. Each of the multiple side plates has a through hole, which connects the air outlet cavity to the interior of the energy storage battery cabinet. A baffle is located inside the air outlet cavity and exposed at the air outlet; along the direction from the air inlet to the air outlet, the air inlet, the air outlet, the baffle, and the back plate are arranged sequentially at intervals and opposite to each other.

2. The air distribution device according to claim 1, characterized in that, The baffle has multiple air filter holes of the same diameter, and all of the multiple air filter holes are used to uniformly pass the airflow through the air outlet.

3. The air distribution device according to claim 1, characterized in that, The baffle includes a baffle body and a connecting part; the connecting part is connected to the baffle body, and the baffle body is fixed to the back plate through the connecting part. Along the direction from the air inlet to the air outlet, the air inlet, the air outlet, the baffle body, and the back plate are arranged sequentially at intervals and opposite to each other.

4. The air distribution device according to claim 3, characterized in that, The opening area of ​​the air inlet is larger than the opening area of ​​the air outlet, and the cross-sectional area of ​​the air guide channel gradually decreases along the direction from the air inlet to the air outlet.

5. The air distribution device according to claim 4, characterized in that, The outer contour shape of the air inlet is similar to that of the air outlet, and the outer contour shape of the air outlet matches the outer contour shape of the baffle body.

6. The air distribution device according to claim 5, characterized in that, The baffle body covers the air outlet along a direction perpendicular to the baffle body.

7. The air distribution device according to any one of claims 1-6, characterized in that, The air guide plate includes an air guide plate body and a first end wall connected to the air guide plate body; the air guide plate body itself defines the air guiding channel, and the air guide plate body has the air inlet and the air outlet; The cover includes a second end wall; the second end wall is connected to each of the side plates respectively, and the second end wall is fixed to the first end wall by bolts, so that the back plate, the multiple side plates and the air guide plate body together enclose the air outlet cavity.

8. The air distribution device according to claim 7, characterized in that, The air distribution device includes a sealing gasket; the sealing gasket is fixed to the surface of the first end wall away from the second end wall, and the sealing gasket is used to seal the gap between the air inlet and the air conditioning outlet of the energy storage battery cabinet.

9. An energy storage battery cabinet, characterized in that, It includes an air conditioner and a uniform air distribution device as described in any one of claims 1-8; the uniform air distribution device is located inside the energy storage battery cabinet and is connected to the air outlet of the air conditioner.

10. The energy storage battery cabinet according to claim 9, characterized in that, The energy storage battery cabinet includes a mounting bracket; the mounting bracket is fixed to the side surface of the back plate opposite to the air outlet cavity, and the mounting bracket is used to fix the air distribution device to the frame inside the energy storage battery cabinet.

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