Battery energy storage cabinet

Abstract

The utility model discloses a battery energy storage cabinet which comprises a cabinet body, cabinet doors are symmetrically and rotatably connected to an opening of the cabinet body, a plurality of placing plates are arranged in the cabinet body, battery bodies are arranged at the tops of the placing plates, and air in a refrigeration cavity is refrigerated through work of a semiconductor refrigerator. The air conveying fan conveys cold air generated in the refrigeration cavity into the first air conveying channel of the cabinet body, the cold air is conveyed into the second air conveying channel formed in the placement plate through the first air conveying channel, refrigeration of the placement plate is achieved, and fins arranged at the bottom of the placement plate increase the heat exchange area. By arranging the air return channel, heat exchange with heat generated by charging and discharging of the battery body in the cabinet body is achieved, it is guaranteed that the battery body is at a proper temperature during working, the air subjected to heat exchange is converged in the air return channel and conveyed into the refrigeration cavity, airflow circulation is achieved, cold air is prevented from being directly conveyed into the cabinet body, and external air does not need to be conveyed into the cabinet body; and external moisture is prevented from being accumulated in the cabinet body.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage cabinets, in particular to a battery energy storage cabinet. Background Art

[0002] At present, the development of new energy power batteries is a general trend, especially in the field of lithium battery energy storage. Energy storage products can not only reduce the peak load of traditional power grids and fill valleys, reduce the waste of power resources in the national power grid, but also use clean energy such as light or wind energy to generate electricity and reduce carbon emissions; therefore, energy storage power stations have been favored by the country and related fields in recent years. With the widespread use of large-scale centralized energy storage power stations, distributed microgrid energy storage products are increasingly valued by the country or enterprises because of their convenient transportation and flexible use. Corresponding battery energy storage cabinets are needed when building energy storage power stations.

[0003] However, when the current battery energy storage cabinet is in use, the energy storage batteries in the energy storage cabinet will generate heat during the charging and discharging process, as well as the heat from the external sunlight, which causes the heat to accumulate on the cabinet body, making the temperature inside the battery energy storage cabinet too high. The excessively high temperature makes the battery prone to risks during use. In view of the above problems, a battery energy storage cabinet is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a battery energy storage cabinet to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A battery energy storage cabinet comprises a cabinet body, wherein a cabinet door is symmetrically connected to an opening of the cabinet body for rotation, a plurality of placement plates are arranged in the cabinet body, a battery body is arranged on the top of the placement plates, connecting plates are fixedly connected to both ends of the placement plates, and the connecting plates are fixedly connected to the inner wall of the cabinet body by bolts, a first air supply passage is arranged on one side of the cabinet body, an air return passage is arranged on the other side of the cabinet body, a refrigeration cavity is arranged at the bottom of the cabinet body, and both ends of the refrigeration cavity are connected to the corresponding first air supply passage and the air return passage, an air supply fan is fixedly installed at one end of the refrigeration cavity close to the first air supply passage, a mounting hole is arranged at the bottom of the cabinet body, a semiconductor refrigerator is fixedly installed in the mounting hole, and a refrigeration fin end of the semiconductor refrigerator is built in the refrigeration cavity, a second air supply passage is arranged in the placement plate, and both ends of the second air supply passage pass through the connecting plates, and through holes connected to the first air supply passage and the air return passage are arranged on the inner wall of the cabinet body at both ends of the second air supply passage.

[0007] As a further solution of the utility model: a base is fixedly installed at the bottom of the cabinet by bolts.

[0008] As a further solution of the utility model: a dust cover is arranged at the bottom of the cabinet at the semiconductor refrigerator, the dust cover is arranged on the semiconductor refrigerator, and the dust cover is fixedly connected to the bottom of the cabinet by bolts.

[0009] As a further solution of the utility model: an inspection opening is opened at the bottom of the cabinet between the air supply fan and the semiconductor refrigerator, and a cover plate is provided at the inspection opening at the bottom of the cabinet, and the cover plate is fixedly connected to the cabinet by bolts.

[0010] As a further solution of the utility model: fins are evenly fixedly connected to the bottom of the placement plate, and the placement plate is made of heat-conducting material.

[0011] As a further solution of the utility model: threading grooves are symmetrically opened on the placement plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model cools the air in the refrigeration chamber through the operation of a semiconductor refrigerator. The air delivery fan delivers the cold air generated in the refrigeration chamber to the first air delivery channel of the cabinet, and delivers the cold air to the second air delivery channel opened in the placement plate through the first air delivery channel, so as to realize the cooling of the placement plate. The fins arranged at the bottom of the placement plate increase the heat exchange area, so that heat is exchanged with the heat generated by the charging and discharging of the battery body in the cabinet, ensuring that the battery body is at an appropriate temperature during operation. The air after heat exchange is merged in the return air channel and delivered to the refrigeration chamber, so as to realize the circulation of air flow, avoid direct delivery of cold air to the cabinet, and do not need to deliver the outside air to the cabinet, so as to avoid the accumulation of moisture from the outside in the cabinet.

[0014] 2. The utility model increases the height of the cabinet by installing a base at the bottom of the cabinet, avoids direct contact between the cabinet and the ground, and reduces the risk of water entering the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a structural schematic diagram of a battery energy storage cabinet.

[0016] Figure 2 A cross-sectional view of a battery energy storage cabinet.

[0017] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0018] Figure 4 A top view of a plate placed in a battery energy storage cabinet.

[0019] In the figure: 1. base; 2. cabinet; 3. cabinet door; 4. placement plate; 5. battery body; 6. first air supply duct; 7. second air supply duct; 8. return air duct; 9. refrigeration chamber; 10. through hole; 11. connecting plate; 12. fin; 13. threading groove; 14. air supply fan; 15. inspection port; 16. cover plate; 17. mounting hole; 18. semiconductor refrigerator; 19. dust cover. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In the embodiment of the utility model, a battery energy storage cabinet includes a cabinet body 2, wherein the cabinet body 2 is symmetrically connected to a cabinet door 3 at its opening, wherein a plurality of placement plates 4 are arranged in the cabinet body 2, wherein a battery body 5 is arranged on the top of the placement plates 4, wherein connecting plates 11 are fixedly connected to the inner wall of the cabinet body 2 at both ends of the placement plates 4, wherein the connecting plates 11 are fixedly connected to the inner wall of the cabinet body 2 by bolts, wherein a first air delivery channel 6 is arranged on one side of the cabinet body 2, and an air return channel 8 is arranged on the other side of the cabinet body 2, wherein a refrigeration cavity 9 is arranged at the bottom of the cabinet body 2, wherein both ends of the refrigeration cavity 9 are connected to the corresponding first The air supply duct 6 is connected to the return air duct 8, and an air supply fan 14 is fixedly installed in the refrigeration cavity 9 at one end close to the first air supply duct 6. A mounting hole 17 is provided at the bottom of the cabinet 2, and a semiconductor refrigerator 18 is fixedly installed in the mounting hole 17. The refrigeration fin end of the semiconductor refrigerator 18 is built into the refrigeration cavity 9. A second air supply duct 7 is provided in the placement plate 4, and both ends of the second air supply duct 7 pass through the connecting plate 11. Through holes 10 connected to the first air supply duct 6 and the return air duct 8 are provided on the inner wall of the cabinet 2 at both ends of the second air supply duct 7.

[0022] When in use, the semiconductor refrigerator 18 works to cool the air in the refrigeration chamber 9, and the air supply fan 14 delivers the cold air generated in the refrigeration chamber 9 to the first air supply channel 6 of the cabinet 2, and the cold air is delivered to the second air supply channel 7 opened in the placement plate 4 through the first air supply channel 6, so as to realize the cooling of the placement plate 4, so as to exchange heat with the heat generated by the charging and discharging of the battery body 5 in the cabinet 2, ensuring that the battery body 5 is at an appropriate temperature during operation. The air after heat exchange converges in the return air channel 8 and is delivered to the refrigeration chamber 9 to realize the circulation of air flow.

[0023] The bottom of the cabinet 2 is fixed with a base 1 by bolts, and the base 1 increases the height of the cabinet 2, avoids direct contact between the cabinet 2 and the ground, and reduces the risk of water entering the cabinet 2.

[0024] A dust cover 19 is provided at the bottom of the cabinet 2 at the semiconductor refrigerator 18. The dust cover 19 is provided on the semiconductor refrigerator 18, and the dust cover 19 is fixedly connected to the bottom of the cabinet 2 by bolts. The dust cover 19 protects the semiconductor refrigerator 18 and reduces the accumulation of dust on the semiconductor refrigerator 18.

[0025] An inspection port 15 is provided at the bottom of the cabinet 2 between the air supply fan 14 and the semiconductor refrigerator 18. A cover plate 16 is provided at the bottom of the cabinet 2 at the inspection port 15. The cover plate 16 is fixedly connected to the cabinet 2 by bolts. The inspection port 15 is provided to facilitate inspection and replacement of the air supply fan 14 and the semiconductor refrigerator 18 in the refrigeration cavity 9, as well as cleaning of the refrigeration cavity 9. At the same time, the inspection port 15 is covered by the cover plate 16 to achieve sealing of the inspection port 15.

[0026] The bottom of the placement plate 4 is evenly and fixedly connected with fins 12 . The placement plate 4 is made of a heat-conducting material. The fins 12 increase the contact area with the air in the cabinet 2 , thereby accelerating the heat exchange in the cabinet 2 .

[0027] The placement plate 4 is symmetrically provided with wire threading grooves 13 for convenient wiring.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may 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 shall be included in the protection scope of the present invention.

Claims

1. A battery energy storage cabinet, comprising a cabinet body (2), Features: The cabinet (2) is symmetrically rotatably connected to a cabinet door (3) at the opening thereof; a plurality of placement plates (4) are arranged inside the cabinet (2); a battery body (5) is arranged on the top of the placement plates (4); connecting plates (11) are fixedly connected to the two ends of the placement plates (4); the connecting plates (11) are fixedly connected to the inner wall of the cabinet (2) by bolts; a first air supply passage (6) is provided on one side of the cabinet (2); an air return passage (8) is provided on the other side of the cabinet (2); a refrigeration cavity (9) is provided at the bottom of the cabinet (2); and the two ends of the refrigeration cavity (9) are connected to the corresponding first air supply passage (6) and the air return passage (8). An air delivery fan (14) is fixedly installed in the refrigeration cavity (9) at one end close to the first air delivery duct (6), a mounting hole (17) is provided at the bottom of the cabinet (2), a semiconductor refrigerator (18) is fixedly installed in the mounting hole (17), a refrigeration fin end of the semiconductor refrigerator (18) is built into the refrigeration cavity (9), a second air delivery duct (7) is provided in the placement plate (4), both ends of the second air delivery duct (7) pass through the connecting plate (11), and through holes (10) connected to the first air delivery duct (6) and the return air duct (8) are provided on the inner wall of the cabinet (2) at both ends of the second air delivery duct (7).

2. A battery energy storage cabinet according to claim 1, Features: The bottom of the cabinet (2) is fixed with a base (1) by means of bolts.

3. A battery energy storage cabinet according to claim 1, Features: A dust cover (19) is provided at the bottom of the cabinet (2) at the semiconductor refrigerator (18); the dust cover (19) is provided on the semiconductor refrigerator (18), and the dust cover (19) is fixedly connected to the bottom of the cabinet (2) by bolts.

4. A battery energy storage cabinet according to claim 1, Features: The bottom of the cabinet (2) is provided with an inspection opening (15) between the air delivery fan (14) and the semiconductor refrigerator (18), and the bottom of the cabinet (2) is provided with a cover plate (16) at the inspection opening (15), and the cover plate (16) is fixedly connected to the cabinet (2) by bolts.

5. A battery energy storage cabinet according to claim 1, Features: The bottom of the placement plate (4) is evenly and fixedly connected with fins (12), and the placement plate (4) is made of heat-conducting material.

6. A battery energy storage cabinet according to claim 1, Features: The placement plate (4) is symmetrically provided with threading grooves (13).

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