EP-4742368-A1 - ENERGY STORAGE BOX AND ENERGY STORAGE SYSTEM

Abstract

An energy storage box (100) and an energy storage system (200). The energy storage box (100) includes: a box body (10); a power distribution box (20), and an energy storage device (70), where the energy storage device (70) has a first medium flow path; and a heat exchange mechanism, where the heat exchange mechanism includes a heat exchange device (40), at least part of the heat exchange device (40) is arranged in the power distribution box (20), the heat exchange device (40) has a second medium flow path, the heat exchange mechanism further includes a temperature adjustment device (30), the temperature adjustment device (30) communicates with the first medium flow path to form a first medium circulation flow path, the temperature adjustment device (30) is connected to the second medium flow path to form a second medium circulation flow path, the first medium circulation flow path and the second medium circulation flow path include a heat exchange medium therein, and the temperature adjustment device (30) is configured to adjust the temperature of the heat exchange medium.

Inventors

• CHEN, MING
• ZUO, Xiyang
• YIN, Kaibo
• LUO, Guangsheng
• LI, Zhonghong
• XU, Jinmei
• WU, KAI

Assignees

• Contemporary Amperex Technology Co., Limited

Dates

Publication Date

20260513

Application Date

20240606

Claims (20)

1. An energy storage box, comprising: a box body; a power distribution box and an energy storage device, wherein the power distribution box and the energy storage device are both arranged in the box body, and the energy storage device has a first medium flow path; and a heat exchange mechanism, wherein the heat exchange mechanism comprises a heat exchange device, at least part of the heat exchange device is arranged in the power distribution box, and the heat exchange device has a second medium flow path, the heat exchange mechanism further comprises a temperature adjustment device, the temperature adjustment device communicates with the first medium flow path to form a first medium circulation flow path, the temperature adjustment device is connected to the second medium flow path to form a second medium circulation flow path, the first medium circulation flow path and the second medium circulation flow path comprise a heat exchange medium therein, and the temperature adjustment device is configured to adjust the temperature of the heat exchange medium.
2. The energy storage box according to claim 1, wherein the second medium flow path communicates with the first medium flow path, so that the heat exchange medium whose temperature is adjusted by the temperature adjustment device flows into the second medium flow path through part of the first medium flow path.
3. The energy storage box according to claim 1 or 2, wherein the heat exchange device comprises: a first heat exchange member, a first medium flow channel is formed in the first heat exchange member and the first heat exchange member is attached to the power distribution box, the first medium flow channel is formed as at least part of the second medium flow path, and the first medium flow channel communicates with the temperature adjustment device to form the second medium circulation flow path.
4. The energy storage box according to claim 3, wherein the heat exchange device further comprises: a first heat sink, and the first heat sink is arranged on the first heat exchange member to dissipate heat from the first heat exchange member.
5. The energy storage box according to claim 3 or 4, wherein the heat exchange device further comprises: a first air supply member, and the first air supply member is adapted to blow air toward the first heat exchange member.
6. The energy storage box according to any one of claims 3 to 5, wherein the heat exchange device further comprises: a second heat exchange member, a second medium flow channel is formed in the second heat exchange member and the second heat exchange member is arranged on the power distribution box, and the second medium flow channel is connected between the first medium flow channel and the temperature adjustment device to communicate the first medium flow channel with the temperature adjustment device.
7. The energy storage box according to claim 6, wherein the power distribution box has an air guide channel communicating with the interior of the power distribution box, and the second heat exchange member is arranged in the air guide channel to exchange heat with air in the air guide channel.
8. The energy storage box according to claim 7, wherein the air guide channel has a first open end and a second open end, the first open end communicates with the interior of the power distribution box, and the second heat exchange member is arranged at the second open end.
9. The energy storage box according to claim 7 or 8, wherein the power distribution box comprises a main box body and an air guide portion connected to each other, the air guide portion is located outside the main box body and forms the air guide channel, the main box body has a communication hole, and the communication hole communicates the air guide channel with the main box body.
10. The energy storage box according to claim 9, further comprising: a second air supply member, wherein the second air supply member is arranged on the main box body and corresponds to the communication hole, and the second air supply member is adapted to draw air from the main box body into the air guide channel.
11. The energy storage box according to any one of claims 1 to 10, further comprising: a first drive pump, wherein the first drive pump is connected between the second medium flow path and the temperature adjustment device to drive a heat exchange medium to circulate in the second medium circulation flow path.
12. The energy storage box according to any one of claims 1 to 11, further comprising: a second drive pump, wherein the second drive pump is arranged in the first medium circulation flow path to drive a heat exchange medium to circulate in the first medium circulation flow path.
13. The energy storage box according to claim 12, wherein a plurality of second drive pumps and a plurality of first medium circulation flow paths are provided, and the plurality of second drive pumps are connected to the plurality of first medium circulation flow paths in a one-to-one correspondence.
14. The energy storage box according to any one of claims 1 to 13, further comprising: a main control box, wherein the main control box is connected to the energy storage device to control the energy storage device, and the main control box is provided with a flow disturbance member therein, so that air flows in the main control box.
15. The energy storage box according to any one of claims 1 to 14, wherein the temperature adjustment device has a medium inlet and a medium outlet, and the first medium flow path is communicated between the medium inlet and the medium outlet to form the first medium circulation flow path.
16. The energy storage box according to claim 15, wherein the energy storage box further comprises: a first pipeline assembly, the first pipeline assembly has a first pipeline and a second pipeline, the first pipeline is communicated between the medium inlet and an outlet of the corresponding first medium flow path, and the second pipeline is communicated between the medium outlet and an inlet of the corresponding first medium flow path.
17. The energy storage box according to claim 16, wherein a plurality of first pipeline assemblies and a plurality of energy storage devices are provided, and the plurality of first pipeline assemblies communicate with the plurality of energy storage devices in a one-to-one correspondence.
18. The energy storage box according to claim 17, wherein the plurality of first pipeline assemblies are arranged in parallel.
19. The energy storage box according to claim 16, wherein the second medium flow path communicates with the temperature adjustment device through the first pipeline assembly to form the second medium circulation flow path.
20. The energy storage box according to any one of claims 15 to 19, wherein the temperature adjustment device has a heat exchange flow path, and the medium inlet and the medium outlet are formed at two ends of the heat exchange flow path.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS The present application is based on and claims priority to Chinese Patent Application No. 202310952652.4, filed on July 31, 2023, the entire disclosure of which is incorporated herein by reference. TECHNICAL FIELD The present application relates to the field of energy storage boxes, and in particular, to an energy storage box and an energy storage system having the energy storage box. BACKGROUND In related arts, an existing energy storage container has a battery compartment and an electrical compartment. An energy storage device is arranged in the battery compartment. A power distribution box is arranged in the electrical compartment. Independent cooling devices are respectively arranged in the battery compartment and the electrical compartment. Since the cooling device for the energy storage device and the cooling device for the power distribution box are designed independently and are not associated with each other, the structure of the energy storage container is complex, manufacturing costs of the energy storage container are increased, and energy consumption of the energy storage container is also increased. SUMMARY The present application is intended to solve at least one of the technical problems described in related arts to a certain extent. To this end, the present application provides an energy storage box. The energy storage box has a simple structure and low energy consumption. According to a first aspect, an embodiment of the present application provides an energy storage box, comprising: a box body;a power distribution box and an energy storage device, wherein the power distribution box and the energy storage device are both arranged in the box body, and the energy storage device has a first medium flow path; anda heat exchange mechanism, wherein the heat exchange mechanism comprises a heat exchange device, at least part of the heat exchange device is arranged in the power distribution box, and the heat exchange device has a second medium flow path;the heat exchange mechanism further comprises a temperature adjustment device, wherein the temperature adjustment device communicates with the first medium flow path to form a first medium circulation flow path, the temperature adjustment device is connected to the second medium flow path to form a second medium circulation flow path, the first medium circulation flow path and the second medium circulation flow path comprise a heat exchange medium therein, and the temperature adjustment device is configured to adjust the temperature of the heat exchange medium. In the above technical solution, the temperature adjustment device cooperates with the heat exchange device, so that the power distribution box and the energy storage device can share one heat exchange mechanism, which can simplify the structure of the energy storage box, thereby reducing manufacturing costs of the energy storage box. In addition, the heat exchange medium in the temperature adjustment device can heat or cool the power distribution box, which can reduce energy consumption of the energy storage box. According to a second aspect, an embodiment of the present application further provides an energy storage system, comprising at least one energy storage box described above. Additional aspects and advantages of the present application will be partly provided in the following description, and partly become evident in the following description or understood through the practice of the present application. DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram of an energy storage box according to an embodiment of the present application;FIG. 2 is an enlarged view of A in FIG. 1;FIG. 3 is an enlarged view of B in FIG. 1;FIG. 4 is a schematic diagram of an energy storage box from another perspective according to an embodiment of the present application;FIG. 5 is an enlarged view of C in FIG. 4;FIG. 6 is an enlarged view of D in FIG. 4;FIG. 7 is a schematic diagram of assembly of a heat exchange mechanism and a first pipeline assembly according to an embodiment of the present application;FIG. 8 is an enlarged view of E in FIG. 7;FIG. 9 is an enlarged view of F in FIG. 7;FIG. 10 is a schematic diagram of communication of a temperature adjustment device, a heat exchange device, and an energy storage device according to an embodiment of the present application;FIG. 11 is a schematic diagram of another kind of communication of a temperature adjustment device, a heat exchange device, and an energy storage device according to an embodiment of the present application;FIG. 12 is a schematic diagram of another kind of communication of a temperature adjustment device, a heat exchange device, and an energy storage device according to an embodiment of the present application;FIG. 13 is a schematic diagram of another kind of communication of a temperature adjustment device, a heat exchange device, and an energy storage device according to an embodiment of the pr