String type energy storage battery cabin heat dissipation structure

Abstract

The utility model relates to the technical field of heat dissipation structures, and discloses a string type energy storage battery cabin heat dissipation structure which comprises a battery cabin body, storage battery cavities and energy storage converter cavities are formed in the battery cabin body, the number of the storage battery cavities is the same as that of the energy storage converter cavities, and the storage battery cavities and the energy storage converter cavities are distributed up and down. By arranging the storage battery cavity and the energy storage converter cavity, the battery cabin is divided into an upper layer and a lower layer, the upper layer is a battery cluster with the protection grade of IP54, the lower layer is an energy storage converter with the protection grade of IP10, product functions are achieved, land is saved, meanwhile, an air duct is designed in the energy storage converter cavity, and the energy storage converter cavity is more compact in structure. The energy storage converter can realize circulating heat exchange with the outside to realize cooling of the energy storage converter, and the design of the dustproof structure can filter the air port of the shell to prevent external dust from entering the cavity of the energy storage converter from the shell, so that the damage of the external dust to the energy storage converter is reduced, and the service life of the energy storage converter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation structures, in particular to a heat dissipation structure for a string-type energy storage battery compartment. Background Art

[0002] String energy storage battery compartments connect the battery clusters in series via a DC connection using an energy storage inverter. Multiple clusters are connected in parallel using AC, enabling per-cluster management. These compartments offer significant advantages over centralized energy storage systems and have gradually become a mainstream product in the market in recent years. While liquid cooling technology allows precise temperature control for the batteries in string energy storage compartments, the energy storage inverter uses air cooling. This air cooling requires ventilation holes in the battery compartment, which inevitably affects the overall protection level of the battery compartment. Energy storage battery compartments are typically located and operated outdoors, with a protection level of at least IP54. Therefore, to meet the heat dissipation requirements of the energy storage inverter and the protection level of the battery compartment, the energy storage inverter must be separated from the battery cluster. If the energy storage inverter is housed in a separate compartment, the floor space required increases by 40%. If the energy storage inverter is located adjacent to the battery cluster, both the heat dissipation issues of the energy storage inverter and the protection level of the battery compartment must be addressed.

[0003] Therefore, in response to the above problems, we propose a string-type energy storage battery compartment heat dissipation structure. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model has opened up a battery cavity and an energy storage converter cavity, so that the battery compartment is arranged in two layers, the upper layer is the battery cluster with a protection level of IP54, and the lower layer is the energy storage converter with a protection level of IP20. This not only achieves product functions but also saves land. At the same time, an air duct is designed inside the energy storage converter cavity so that the energy storage converter can achieve cyclic heat exchange with the outside world to achieve cooling of the energy storage converter. The design of the dustproof structure can filter the air outlet of the shell to prevent external dust from entering the energy storage converter cavity from the shell. The invention reduces the damage of external dust to the energy storage inverter and increases its service life. It solves the problem that the cooling method of the energy storage inverter in the string energy storage battery compartment is air cooling. The use of air cooling requires ventilation holes in the battery compartment, which will inevitably affect the protection level of the entire battery compartment. However, the energy storage battery compartment is generally arranged and operated outdoors, and the protection level is not lower than IP54. Therefore, in order to meet the heat dissipation of the energy storage inverter and the protection level of the battery compartment, the energy storage inverter and the battery cluster must be arranged separately. If the energy storage inverter is equipped with a separate compartment, the floor space will increase.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a heat dissipation structure for a string-type energy storage battery compartment, comprising a battery compartment body, wherein a battery cavity and an energy storage converter cavity are provided inside the battery compartment body, the number of the battery cavities and the energy storage converter cavities are the same, and the two are distributed up and down, the number of the battery cavities is multiple groups distributed equidistantly left and right, two energy storage converters symmetrically distributed front and back are installed inside the energy storage converter cavity, a shell is fixedly installed inside the energy storage converter cavity between the two energy storage converters, the bottom of the shell is connected to the outside, a support plate is fixedly installed inside the shell, a heat dissipation fan is fixedly installed inside the support plate, and air ducts are fixedly installed on both side outer walls of the shell.

[0006] Preferably, an air outlet is provided on the outer wall of the two energy storage converters close to each other, and an air inlet is provided on the outer wall of the energy storage converter away from the air outlet. The air outlet is connected to an air duct, and the height of the air duct is higher than the support plate.

[0007] Preferably, first filter screens are fixedly installed at both ends of the cavity of the energy storage converter, and the energy storage converter is located between the two first filter screens.

[0008] Preferably, the battery cavity is equipped with two batteries symmetrically distributed front to back, and a first sealing door is hinged between the front and rear ends of the battery cavity and the battery compartment body.

[0009] Preferably, an equipment cavity is provided inside the battery compartment body on one side of the battery cavity and the energy storage converter cavity, and a second sealing door is hinged at one end of the front side of the equipment cavity.

[0010] Preferably, a third sealed door is hinged at one end of the back of the equipment cavity, and two heat dissipation windows distributed up and down are fixedly installed inside the third sealed door.

[0011] Preferably, two supporting legs are fixedly mounted on the bottom of the battery compartment body.

[0012] Compared with the prior art, the present invention provides a heat dissipation structure for a string-type energy storage battery compartment, which has the following beneficial effects:

[0013] The utility model provides a battery cavity and an energy storage converter cavity on a heat dissipation structure of a string-type energy storage battery compartment, so that the battery compartment is arranged in two layers, the upper layer is a battery cluster with a protection level of IP54, and the lower layer is an energy storage converter with a protection level of IP10. This not only realizes the product function but also saves land. At the same time, an air duct is designed inside the energy storage converter cavity, so that the energy storage converter can realize cyclic heat exchange with the outside world to achieve cooling of the energy storage converter.

[0014] The utility model designs a dust-proof structure on the heat dissipation structure of a string-type energy storage battery compartment. When in use, the second filter can filter the air outlet of the shell after installation to prevent external dust from entering the cavity of the energy storage inverter from the shell, reducing the damage of external dust to the energy storage inverter and improving its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the battery compartment of the utility model;

[0016] Figure 2 This is a schematic diagram of the front structure of the battery compartment body of the utility model;

[0017] Figure 3 This is a schematic diagram of the back structure of the battery compartment body of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the energy storage converter cavity of the utility model;

[0019] Figure 5 This is a schematic diagram of the exhaust structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the front structure of the energy storage converter of the utility model;

[0021] Figure 7 This is a schematic diagram of the back structure of the energy storage converter of the present utility model.

[0022] In the figure: 1. Battery compartment body; 2. Battery cavity; 3. Energy storage converter cavity; 4. Energy storage converter; 5. Housing; 6. Support plate; 7. Cooling fan; 8. Air duct; 9. First filter; 10. Air inlet; 11. Battery; 12. First sealed door; 13. Air outlet; 14. Equipment cavity; 15. Second sealed door; 16. Support leg; 17. Second sealed door; 18. Heat dissipation window. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0024] See also Figure 1-7A heat dissipation structure of a string-type energy storage battery cabin includes a battery cabin body 1, wherein a battery cavity 2 and an energy storage converter cavity 3 are provided inside the battery cabin body 1. The number of the battery cavities 2 and the energy storage converter cavity 3 is the same, and the two are distributed up and down. The number of the battery cavities 2 is multiple groups distributed equidistantly left and right. Two energy storage converters 4 symmetrically distributed front and back are installed inside the energy storage converter cavity 3. A shell 5 is fixedly installed between the two energy storage converters 4 inside the energy storage converter cavity 3. The bottom of the shell 5 is connected to the outside world. A support plate 6 is fixedly installed inside the shell 5. A heat dissipation fan 7 is fixedly installed inside the support plate 6. Air ducts 8 are fixedly installed on the outer walls of both sides of the shell 5.

[0025] In this embodiment, an air outlet 13 is provided on the outer wall of the two energy storage converters 4 close to each other, and an air inlet 10 is provided on the outer wall of the energy storage converter 4 away from the air outlet 13. The air outlet 13 is connected to the air duct 8, and the height of the air duct 8 is higher than the support plate 6.

[0026] During specific use: the energy storage inverter 4 has a built-in forced air intake and exhaust device. When heat dissipation is performed, the internal air intake and exhaust device of the energy storage inverter 4 draws the external air flow into the energy storage inverter 4 through the air inlet end 10 and the air outlet end 13, completes heat exchange inside the energy storage inverter 4 and turns into hot air, and the hot air is forced to be discharged into the shell 5 through the air duct 8, and the hot air is discharged to the outside of the battery compartment through the exhaust port 6 through the heat dissipation fan inside the shell 5.

[0027] In this embodiment, first filter screens 9 are fixedly installed at both ends of the energy storage converter cavity 3 , and the energy storage converter 4 is located between the two first filter screens 9 .

[0028] During specific use, the first filter 9 can filter the airflow sucked in by the air inlet end 10 of the energy storage converter 4 .

[0029] In this embodiment, two batteries 11 symmetrically distributed front to back are fixedly installed inside the battery cavity 2 , and a first sealing door 12 is hinged between the front and rear ends of the battery cavity 2 and the battery compartment body 1 .

[0030] During specific use, the first sealing door 12 can protect the battery 11 inside the battery cavity 2 .

[0031] In this embodiment, an equipment chamber 14 is provided inside the battery compartment body 1 on one side of the battery cavity 2 and the energy storage converter cavity 3 , and a second sealing door 15 is hinged at one end of the front side of the equipment chamber 14 .

[0032] During specific use: the second sealing door 15 can protect the internal instruments of the equipment cavity 14 .

[0033] In this embodiment, a third sealed door 17 is hingedly connected to one end of the back of the equipment cavity 14 , and two heat dissipation windows 18 distributed up and down are fixedly installed inside the third sealed door 17 .

[0034] During specific use, the third sealing door 17 can protect the internal equipment of the equipment cavity 14 , and the heat dissipation window 18 can accelerate the heat dissipation efficiency of the internal equipment of the equipment cavity 14 .

[0035] In this embodiment, two supporting legs 16 are fixedly installed on the bottom of the battery compartment body 1.

[0036] During specific use: the supporting legs 16 can support and fix the battery compartment body 1 and its components.

[0037] Working principle: When in use, the battery compartment body 1 is divided into two layers, the battery cavity 2 and the energy storage inverter cavity 3, which are arranged in an upper and lower layer. The two layers are physically isolated. The upper layer is the battery cluster with a protection level of IP54, and the lower layer is the energy storage inverter 4 with a protection level of IP10. This not only realizes the product function but also saves land. At the same time, the air duct 8 and the heat dissipation fan 7 are designed inside the energy storage inverter cavity 3, so that the energy storage inverter 4 can realize cyclic heat exchange with the outside world, so as to achieve cooling of the energy storage inverter 4 and improve its service life.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a string-type energy storage battery compartment, comprising a battery compartment body (1), characterized in that: The battery compartment body (1) is provided with a battery cavity (2) and an energy storage converter cavity (3). The number of the battery cavities (2) and the energy storage converter cavity (3) is the same, and the two are distributed vertically. The number of the battery cavities (2) is multiple groups of equidistantly distributed left and right. Two energy storage converters (4) symmetrically distributed front and back are installed inside the energy storage converter cavity (3). A shell (5) is fixedly installed between the two energy storage converters (4) inside the energy storage converter cavity (3). The bottom of the shell (5) is connected to the outside. A support plate (6) is fixedly installed inside the shell (5). A heat dissipation fan (7) is fixedly installed inside the support plate (6). Air ducts (8) are fixedly installed on the outer walls of both sides of the shell (5).

2. The heat dissipation structure of a string-type energy storage battery compartment according to claim 1, characterized in that: An air outlet (13) is provided on the outer wall of the two energy storage converters (4) on a side close to each other, and an air inlet (10) is provided on the outer wall of the energy storage converter (4) on a side away from the air outlet (13). The air outlet (13) is connected to an air duct (8), and the height of the air duct (8) is higher than the support plate (6).

3. The heat dissipation structure of a string-type energy storage battery compartment according to claim 1, characterized in that: First filter screens (9) are fixedly installed at both ends of the energy storage converter cavity (3), and the energy storage converter (4) is located between the two first filter screens (9).

4. The heat dissipation structure of a string-type energy storage battery compartment according to claim 1, characterized in that: Two batteries (11) symmetrically distributed front and back are fixedly installed inside the battery cavity (2), and a first sealing door (12) is hinged between the front and rear ends of the battery cavity (2) and the battery compartment body (1).

5. The heat dissipation structure of a string-type energy storage battery compartment according to claim 1, characterized in that: An equipment cavity (14) is provided inside the battery compartment body (1) on one side of the battery cavity (2) and the energy storage converter cavity (3), and a second sealing door (15) is hingedly connected to one end of the front of the equipment cavity (14).

6. The heat dissipation structure of a string-type energy storage battery compartment according to claim 5, characterized in that: A third sealing door (17) is hingedly connected to one end of the back of the equipment cavity (14), and two heat dissipation windows (18) distributed up and down are fixedly installed inside the third sealing door (17).

7. The heat dissipation structure of a string-type energy storage battery compartment according to claim 1, characterized in that: Two supporting legs (16) are fixedly mounted on the bottom of the battery compartment body (1).

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