Integrated box type energy storage cabinet

Abstract

The utility model discloses an integrated box-type energy storage cabinet, which comprises a cabinet body, and a plurality of battery cluster units, a plurality of PCS modules and a plurality of high-voltage boxes which are arranged in the cabinet body, the cabinet body defines an installation cavity with at least one open side, the installation cavity is divided into a first cavity and a second cavity by a partition plate, and the first cavity and the second cavity are distributed along a first direction. Each battery cluster unit comprises a plurality of battery packs connected in series, the plurality of PCS modules are arranged in the second direction of the cabinet body, each PCS module is correspondingly and electrically connected with one battery cluster unit, and one high-voltage box is electrically connected with the corresponding PCS module and the corresponding battery cluster unit. According to the energy storage cabinet provided by the utility model, when one battery cluster unit in the cabinet body is damaged and cannot work, other battery cluster units can also work normally, so that the working stability of the energy storage cabinet is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to an integrated box-type energy storage cabinet. Background Art

[0002] Energy storage integrated box systems are primarily used in wind, solar, storage, and microgrid projects due to their flexibility, affordability, efficiency, and safety. They are widely used due to their high energy density, small footprint, ease of installation, short construction cycle, and convenient transport. Their standardized components and flexible system capacity configurations meet the needs of most customers.

[0003] In existing energy storage cabinets, if any battery pack experiences an abnormality, the cabinet must cease operation and replace the abnormal battery pack before it can resume operation. However, inspecting and replacing the abnormal battery pack takes time, which can cause the energy storage cabinet to be inoperable during this period, significantly affecting its operational stability. Utility Model Content

[0004] The purpose of the utility model is to provide an integrated box-type energy storage cabinet so as to improve the working stability of the energy storage cabinet.

[0005] The utility model is realized through the following technical solutions.

[0006] An integrated box-type energy storage cabinet, comprising:

[0007] A cabinet body, wherein the cabinet body defines an installation chamber with at least one side open, wherein the interior of the installation chamber is divided by a partition to form a first chamber and a second chamber distributed along a first direction;

[0008] a plurality of battery cluster units, a plurality of which are disposed in the first chamber, the battery cluster units comprising a plurality of battery packs connected in series;

[0009] A plurality of PCS modules are installed in the second chamber, and the plurality of PCS modules are arranged along the second direction of the cabinet and each of the PCS modules is electrically connected to a corresponding battery cluster unit;

[0010] A plurality of high-voltage boxes are disposed in the first chamber, and one of the high-voltage boxes is electrically connected to the corresponding PCS module and the battery cluster unit.

[0011] As a further improvement of the present invention, the multiple battery packs of one battery cluster unit are arranged along the second direction.

[0012] As a further improvement of the present invention, the battery pack includes a first connector and a second connector, and two adjacent battery packs in a battery cluster unit are connected by a connecting cable, one end of the connecting cable is connected to the first connector, and the other end is connected to the second connector.

[0013] As a further improvement of the present invention, the connection cable is pluggable to the first connector and the second connector, and the first connector and the second connector have the same specifications.

[0014] As a further improvement of the present invention, a connecting hole is provided on the partition, and the connecting hole connects the first chamber and the second chamber.

[0015] As a further improvement of the present invention, there are multiple connection holes, the connection holes are arranged along the second direction, and each PCS module corresponds to at least one connection hole.

[0016] As a further improvement of the present invention, a liquid cooling unit is provided in the first chamber, and the liquid cooling unit includes a liquid cooling machine and a liquid cooling pipeline connected to the liquid cooling machine, and the liquid cooling pipeline is distributed on the battery pack.

[0017] As a further improvement of the present invention, the first chamber includes a first installation cavity and a second installation cavity distributed along the second direction, the first installation cavity is arranged above the second installation cavity, the plurality of battery cluster units and the high-voltage box are arranged in the first installation cavity, and the liquid cooling unit is arranged in the second installation cavity.

[0018] As a further improvement of the present invention, it further comprises running wheels, which are arranged at the lower end of the cabinet.

[0019] Beneficial effects of the utility model:

[0020] 1. The utility model provides an integrated box-type energy storage cabinet. When one of the battery cluster units in the cabinet is damaged and cannot work, the other battery cluster units can also work normally, thereby greatly improving the working stability of the energy storage cabinet.

[0021] 2. The battery pack has a first connector and a second connector, and the first connector and the second connector have the same specifications. Two adjacent battery packs in the same battery cluster are connected by a connecting cable, and the connecting cable is plug-in connected to the first connector and the second connector. When a battery pack is abnormal, the battery packs on the upper and lower sides of the abnormal battery pack can be directly connected in series through the connecting cable, thereby isolating the abnormal battery pack. This allows the energy storage cabinet to continue operating while the abnormal battery pack is being repaired, which helps to improve the stability of the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following is a detailed description of preferred embodiments of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of the cabinet in the present utility model;

[0024] Figure 2 This is a front view of an integrated box-type energy storage cabinet in the utility model;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of part A;

[0026] Figure 4 is a structural diagram of the partition;

[0027] In the picture:

[0028] 1. Cabinet; 11. First chamber; 11a. First installation chamber; 11b. Second installation chamber; 12. Second chamber; 13. Partition; 13a. Connection hole; 2. Battery cluster unit; 21. Battery pack; 21a. First connector; 21b. Second connector; 22. Connection cable; 3. PCS module; 5. Liquid cooling unit; 51. Liquid cooler; 52. Liquid cooling circuit. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below based on the accompanying drawings and implementation examples.

[0030] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.

[0031] This embodiment provides an integrated box-type energy storage cabinet. Figures 1 and 2 , comprising a cabinet 1, a plurality of battery cluster units 2, a plurality of PCS modules 3 and a plurality of high-voltage boxes 4, the cabinet 1 defines an installation chamber with at least one side open, the interior of the installation chamber is divided by a partition 13 to form a first chamber 11 and a second chamber 12 distributed along a first direction, when the cabinet 1 is Figure 1When placed in the direction of , the first direction refers to the left and right direction of the cabinet 1, and the second direction refers to the up and down direction of the cabinet 1. Multiple PCS modules 3 are installed in the second chamber 12 and are stacked along the second direction. Multiple battery cluster units 2 are arranged in the first chamber 11. One battery cluster unit 2 includes multiple battery packs 21 connected in series, and each PCS module 3 is electrically connected to one battery cluster unit 2. Multiple high-voltage boxes 4 are arranged in the first chamber 11. One high-voltage box 4 is electrically connected to the corresponding PCS module 3 and the battery cluster unit 2. When a battery pack 21 in the cabinet 1 is damaged, the corresponding battery cluster unit 2 will not be able to operate normally, but the other battery cluster units 2 can still operate normally, thereby greatly improving the working stability of the energy storage cabinet.

[0032] During actual connection, the PCS module 3, the high-voltage box 4 and the battery cluster unit 2 are electrically connected in sequence. Since the partition 13 divides the internal space of the cabinet 1 into two parts, the battery cluster unit 2 and the PCS module 3 are respectively arranged in the first chamber 11 and the second chamber 12, thereby avoiding interference between the battery cluster unit 2 and the PCS module 3.

[0033] Furthermore, multiple battery packs 21 of a battery cluster unit 2 are stacked along the second direction, which is convenient for wiring adjacent battery packs 21 in a battery cluster unit 2. The battery pack 21 includes a first connector 21a and a second connector 21b, and the first connector 21a and the second connector 21b are distributed along the second direction. Two adjacent battery packs 21 in a battery cluster unit 2 are connected by a connecting cable 22. One end of the connecting cable 22 is connected to the first connector 21a, and the other end is connected to the second connector 21b. Specifically, the first connector 21a is the negative pole of the battery pack 21, and the second connector 21b is the positive pole of the battery pack 21. The two connectors have the same specifications, and the connecting cable 22 and the first connector 21a and the second connector 21b are all pluggable, which is convenient for connection. When the energy storage cabinet is operating, if one of the battery packs 21 of the battery cluster unit 2 becomes abnormal, the battery packs 21 on the upper and lower sides of the abnormal battery pack 21 can be directly connected in series through the connecting cable 22, thereby isolating the abnormal battery pack 21. That is, the abnormal battery pack 21 can be repaired without affecting the normal operation of the energy storage cabinet, which helps to improve the stability of the energy storage cabinet.

[0034] In this embodiment, the high-voltage box 4 is arranged below the battery pack 21, and the high-voltage box 4 is installed close to the PCS module 3, which facilitates the electrical connection between the high-voltage box 4 and the PCS module. In addition, it can also enable multiple battery cluster units 2, multiple PCS modules 3 and multiple high-voltage boxes 4 to be assembled compactly, which is conducive to reducing the volume of the cabinet 1.

[0035] In addition, a liquid cooling unit 5 is provided in the first chamber 11. The liquid cooling unit 5 includes a liquid cooling machine 51 and a liquid cooling pipeline 52 connected to the liquid cooling machine 51. The liquid cooling pipeline 52 is distributed on the battery pack 21. The battery pack 21 is cooled by liquid cooling, and the heat dissipation efficiency is high.

[0036] Furthermore, the first chamber 11 includes a first installation chamber 11a and a second installation chamber 11b distributed along the second direction. The first installation chamber 11a is arranged above the second installation chamber 11b. Multiple battery cluster units 2 and the high-voltage box 4 are arranged in the first installation chamber 11a, and the liquid cooling unit 5 is arranged in the second installation chamber 11b. That is, the battery cluster unit 2 and the liquid cooler 51 are arranged in different chambers. On the one hand, it is convenient to manage the two, and on the other hand, it can reduce the heat generated by the liquid cooler 51 during operation to affect the temperature of the battery pack 21.

[0037] In this embodiment, referring to Figure 4 The partition 13 is provided with a connection hole 13a, which connects the first chamber 11 and the second chamber 12. That is, the PCS module 3 and the corresponding high-voltage box 4 can be connected through the connection hole 13a. At the same time, a plurality of connection holes 13a are provided, and the connection holes 13a are arranged along the second direction of the cabinet 1. Each PCS module 3 corresponds to at least one connection hole 13a. That is, each PCS module 3 is provided with an independent connection hole 13a for line connection. On the one hand, this facilitates the line connection between the PCS module 3 and the corresponding high-voltage box 4, which can reduce wiring errors. On the other hand, when a PCS module 3 fails, the specific line and connection hole 13a can be quickly located, facilitating troubleshooting.

[0038] In this embodiment, the lower end of the cabinet body 1 is further provided with running wheels, so that the staff can easily move the cabinet body 1, thereby improving the convenience of use of the energy storage cabinet.

[0039] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. An integrated box-type energy storage cabinet, characterized in that: include: A cabinet (1), the cabinet (1) defining an installation chamber with at least one side open, the interior of the installation chamber being divided by a partition (13) into a first chamber (11) and a second chamber (12) distributed along a first direction; A plurality of battery cluster units (2), wherein the plurality of battery cluster units (2) are arranged in the first chamber (11), and the battery cluster unit (2) comprises a plurality of battery packs (21) connected in series; A plurality of PCS modules (3) are installed in the second chamber (12), the plurality of PCS modules (3) are arranged along the second direction of the cabinet (1), and each of the PCS modules (3) is electrically connected to a corresponding battery cluster unit (2); A plurality of high-voltage boxes (4) are arranged in the first chamber (11), and one of the high-voltage boxes (4) is electrically connected to the corresponding PCS module (3) and the battery cluster unit (2).

2. The integrated box-type energy storage cabinet according to claim 1, characterized in that: The plurality of battery packs (21) of the battery cluster unit (2) are arranged along the second direction.

3. The integrated box-type energy storage cabinet according to claim 2, characterized in that: The battery pack (21) has a first connector (21a) and a second connector (21b), and two adjacent battery packs (21) in the battery cluster unit (2) are connected via a connecting cable (22), one end of the connecting cable (22) is connected to the first connector (21a), and the other end is connected to the second connector (21b).

4. The integrated box-type energy storage cabinet according to claim 3, characterized in that: The connection cable (22) is connected to the first connector (21a) and the second connector (21b) in a pluggable manner, and the first connector (21a) and the second connector (21b) have the same specifications.

5. The integrated box-type energy storage cabinet according to claim 1, characterized in that: A connecting hole (13a) is provided on the partition (13), and the connecting hole (13a) communicates with the first chamber (11) and the second chamber (12).

6. The integrated box-type energy storage cabinet according to claim 5, characterized in that: There are a plurality of connection holes (13a), the connection holes (13a) are arranged along the second direction, and each of the PCS modules (3) corresponds to at least one connection hole (13a).

7. The integrated box-type energy storage cabinet according to claim 1, characterized in that: A liquid cooling unit (5) is provided in the first chamber (11), the liquid cooling unit (5) comprising a liquid cooling machine (51) and a liquid cooling pipeline (52) connected to the liquid cooling machine (51), the liquid cooling pipeline (52) being distributed on the battery pack (21).

8. The integrated box-type energy storage cabinet according to claim 7, characterized in that: The first chamber (11) comprises a first installation chamber (11a) and a second installation chamber (11b) distributed along a second direction, the first installation chamber (11a) being arranged above the second installation chamber (11b), the plurality of battery cluster units (2) and the high-voltage box (4) being arranged in the first installation chamber (11a), and the liquid cooling unit (5) being arranged in the second installation chamber (11b).

9. The integrated box-type energy storage cabinet according to claim 1, characterized in that: It also includes running wheels, which are arranged at the lower end of the cabinet (1).

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