energy storage device

Abstract

The present application relates to a kind of energy storage equipment, comprising: heat management unit;Electrical module, the electrical module is spaced below the heat management unit;And liquid collection assembly, the liquid collection assembly is spaced between the heat management unit and the electrical module, the liquid collection assembly can receive the coolant from the heat management unit leakage.Due to the installation of liquid collection assembly between heat management unit and electrical module, even when the coolant leakage occurs accidentally when heat management unit works, liquid leakage is blocked by liquid collection assembly and only drops on liquid collection assembly, and is accumulated on liquid collection assembly for regular cleaning, liquid leakage cannot drop on electrical module, and then cannot leak into electrical module to cause short circuit to electrical components, not only ensure the normal function of electrical module, but also can greatly improve the use safety and reliability of energy storage cabinet.

Description

Technical Field

[0001] This invention relates to the field of energy storage technology, and in particular to an energy storage device. Background Technology

[0002] Currently, energy storage cabinets are widely used in various applications, with liquid-cooled energy storage cabinets being among the most common. Liquid-cooled energy storage cabinets are installed outdoors and use thermal management units to cool the battery box. Specifically, the thermal management unit contains flowing coolant, which flows through pipes into the battery box, exchanging heat with the battery cells inside to achieve a cooling effect.

[0003] However, in actual use, there is a possibility of coolant leakage in the thermal management unit. When this happens, the leaked liquid will drip directly onto the electrical modules below, causing electrical components to malfunction, short circuits and other safety hazards, which greatly endangers the safety and reliability of the liquid-cooled energy storage cabinet. Summary of the Invention

[0004] Therefore, it is necessary to provide an energy storage device that aims to solve the problem of short circuits in electrical components within the electrical module caused by leakage in existing technologies, thereby compromising the safety and reliability of the energy storage cabinet.

[0005] This application provides an energy storage device, which includes:

[0006] Thermal management unit;

[0007] Electrical modules, which are spaced apart below the thermal management unit; and

[0008] A liquid collection assembly is provided between the thermal management unit and the electrical module, and the liquid collection assembly is capable of collecting coolant leaking from the thermal management unit.

[0009] In the energy storage device described above, the thermal management unit is installed above the electrical module. Because a liquid collection component is installed between the thermal management unit and the electrical module, even if a coolant leak occurs accidentally during the operation of the thermal management unit, the leaking liquid will only drip onto the liquid collection component and accumulate there for easy periodic cleaning. The leaking liquid cannot drip onto the electrical module, thus preventing it from seeping into the electrical module and causing a short circuit to the electrical components. This not only ensures the normal functioning of the electrical module but also greatly improves the safety and reliability of the energy storage cabinet.

[0010] The technical solution of this application will be further described below:

[0011] In one embodiment, the liquid collection assembly includes at least one support beam and a liquid collection tray, the thermal management unit is supported on the support beam, and the liquid collection tray is mounted on the support beam and located between the thermal management unit and the electrical module.

[0012] In one embodiment, the load beam is provided with an installation track, the installation track having an open end and a positioning end disposed opposite to each other along the length direction of the installation track, the edge portion of the liquid collection tray in the width direction can be inserted through the open end and moved along the installation track until the end portion of the liquid collection tray in the length direction abuts and is positioned against the positioning end.

[0013] In one embodiment, the carrier beam is further provided with a limiting stop edge located above the mounting track and bent toward the mounting track. The edge of the liquid collection tray in the width direction is bent to form a matching stop edge. The matching stop edge prevents the limiting stop edge from disengaging from the mounting track, thereby preventing the liquid collection tray from disengaging from the carrier beam.

[0014] In one embodiment, the load beam has a positioning baffle, which is disposed at the end of the mounting track to form the positioning end. The positioning baffle has a limiting hole, and the end of the mating flange has a limiting protrusion that is inserted into the limiting hole.

[0015] In one embodiment, the limiting protrusion is formed with a buckle extending in a direction parallel to the positioning baffle, the buckle engaging with the side of the positioning baffle opposite to the mounting track.

[0016] In one embodiment, the liquid collection assembly further includes a threaded fastener, the mounting track has a threaded hole at the open end, the liquid collection tray has a through hole that aligns with the threaded hole, and the threaded fastener passes through the through hole and is screwed into the threaded hole to fix the mounting track and the liquid collection tray.

[0017] In one embodiment, the liquid collection tray is recessed downwards on the upper surface of the thermal management unit to form a water storage groove; or...

[0018] The liquid collection tray has a raised water-retaining edge on its upper surface facing the thermal management unit, and the water-retaining edge forms a water-collecting groove.

[0019] In one embodiment, the beam has a support surface for supporting the thermal management unit, and one end of the support surface in the width direction is bent downward to form or protrude to form the limiting stop.

[0020] In one embodiment, one end of the support surface along its length is bent upward to form or protrude a positioning body, which abuts against and positions the thermal management unit.

[0021] In one embodiment, the liquid collection assembly includes two support beams arranged side by side with a gap between them. The two support beams are respectively installed to cooperate with two edges in the width direction of the liquid collection tray, and the thermal management unit is supported on the two support beams.

[0022] In one embodiment, the energy storage device further includes an installation cabinet having a cavity for accommodating the thermal management unit, the electrical module, and the liquid collection assembly. The liquid collection assembly is installed in the cavity and divides the cavity into a first installation compartment and a second installation compartment that are longitudinally independent. The thermal management unit is installed in the first installation compartment, and the electrical module is installed in the second installation compartment.

[0023] In one embodiment, the energy storage device further includes a liquid return assembly connected to both the liquid collection assembly and the thermal management unit to return leaked coolant collected by the liquid collection assembly to the thermal management unit. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an energy storage device according to an embodiment of this application;

[0027] Figure 2 for Figure 1 Assembly structure diagram of CIMC liquid chromatography module;

[0028] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0029] Figure 4 for Figure 2 Exploded view of the CIMC liquid assembly.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Energy storage equipment; 10. Thermal management unit; 20. Electrical module; 30. Liquid collection assembly; 31. Loading beam; 311. Mounting rail; 312. Open end; 313. Positioning end; 314. Limiting flange; 315. Positioning baffle; 315a. Limiting hole; 316. Support surface; 317. Positioning body; 32. Liquid collection tray; 321. Matching flange; 321a. Limiting protrusion; 3211a. Undercut; 33. Threaded fastener; 40. Mounting cabinet; 41. First mounting compartment; 42. Second mounting compartment. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 As shown in the figure, an energy storage device 100 is illustrated in an embodiment of this application, which includes: a thermal management unit 10, an electrical module 20, and a liquid collection assembly 30.

[0034] In addition, the energy storage device 100 also includes an installation cabinet 40, which has a cavity for accommodating the thermal management unit 10, the electrical module 20, and the liquid collection assembly 30, with the liquid collection assembly 30 installed inside the cavity. In this embodiment, the installation cabinet 40 is a vertical square cabinet, consisting of a cabinet body and a switch door. The switch door is rotatably mounted on the cabinet body, facilitating the installation and removal of functional components such as the thermal management unit 10, the electrical module 20, and the battery box. The liquid collection assembly 30 is installed on the inner wall of the cavity, and the installation method can be, but is not limited to, any one of screw connection, snap-fit ​​connection, etc.

[0035] The liquid collection assembly 30 divides the receiving cavity into a longitudinally independent first mounting chamber 41 and a second mounting chamber 42. Electrical modules 20 are spaced apart and positioned below the thermal management unit 10. The thermal management unit 10 is installed in the first mounting chamber 41, and the electrical modules 20 are installed in the second mounting chamber 42. This arrangement avoids mutual interference between the thermal management unit 10 and the electrical modules 20 during operation, thus ensuring performance. It should be noted that while the first mounting chamber 41 and the second mounting chamber 42 are independently distributed, this does not mean they are completely isolated from each other; at least necessary cable connection and wiring requirements must be met.

[0036] It should also be noted that the installation cabinet 40 is not limited to having only two compartments, the first installation compartment 41 and the second installation compartment 42. Three or more installation compartments can be designed according to actual needs.

[0037] The liquid collection assembly 30 is positioned between the thermal management unit 10 and the electrical module 20, and the liquid collection assembly 30 can collect the coolant leaking from the thermal management unit 10.

[0038] In summary, implementing the technical solution of this embodiment will have the following beneficial effects: In the energy storage device 100 of the above solution, the thermal management unit 10 is installed above the electrical module 20 at intervals. Since the liquid collection component 30 is installed between the thermal management unit 10 and the electrical module 20, even if the thermal management unit 10 accidentally leaks coolant during operation, the leaking liquid will be blocked by the liquid collection component 30 and will only drip onto the liquid collection component 30, and accumulate on the liquid collection component 30 for easy periodic cleaning. The leaking liquid cannot drip onto the electrical module 20, and will not seep into the electrical module 20 to cause a short circuit to the electrical components. This not only ensures the normal function of the electrical module 20, but also greatly improves the safety and reliability of the energy storage cabinet.

[0039] Please continue reading. Figures 2 to 4 In some embodiments, the liquid collection assembly 30 includes at least one support beam 31 and a liquid collection tray 32. The thermal management unit 10 is supported on the support beam 31, and the liquid collection tray 32 is mounted on the support beam 31 and located between the thermal management unit 10 and the electrical module 20. During installation, the support beam 31 is fixed to the inner wall of the mounting cabinet 40 by at least one of the following methods: screw connection, snap-fit ​​connection, etc., so that the support beam 31 can not only stably support the thermal management unit 10, but also support the liquid collection tray 32, so that the liquid collection tray 32 is kept in a horizontal position and can reliably receive the leakage liquid dripping from the thermal management unit 10 above.

[0040] Furthermore, the liquid collection tray 32 is recessed downward on the upper surface facing the thermal management unit 10 to form a water storage groove. Alternatively, as an alternative to the above embodiment, the liquid collection tray 32 is provided with a water-retaining edge protruding from the upper surface facing the thermal management unit 10, and the water-retaining edge surrounds the water storage groove.

[0041] By designing a water-collecting groove on the liquid collection tray 32, the leaking liquid that drips onto the liquid collection tray 32 can be collected in the water-collecting groove, preventing the leaking liquid from flowing in all directions along the liquid collection tray 32 and accidentally dripping onto the electrical module 20 below.

[0042] like Figure 4As shown, in some embodiments, the support beam 31 is provided with an installation track 311. The installation track 311 has an open end 312 and a positioning end 313 arranged opposite each other along the length direction of the installation track 311. The edge portion of the liquid collection tray 32 in the width direction can be inserted through the open end 312 and moved along the installation track 311 until the end portion of the liquid collection tray 32 in the length direction abuts against the positioning end 313 for positioning. During installation, the end portion of the liquid collection tray 32 is aligned with the open end 312, and then the liquid collection tray 32 is pushed. The edge portion of the liquid collection tray 32 can then move along the installation track 311 until the end portion of the liquid collection tray 32 abuts against the positioning end 313, completing the positioning installation. The entire installation structure and method are simple, convenient and labor-saving to operate, and can effectively improve the assembly efficiency and user experience of the liquid collection assembly 30.

[0043] Furthermore, the support beam 31 is also provided with a limiting stop 314 located above the mounting rail 311 and bent towards the mounting rail 311. The edge of the collection tray 32 in the width direction is bent to form a matching stop 321. The matching stop 321 prevents the limiting stop 314 from disengaging from the mounting rail 311, thereby preventing the collection tray 32 from disengaging from the support beam 31. This ensures that the connection between the collection tray 32 and the support beam 31 is stable and reliable.

[0044] Please continue reading. Figure 2 and Figure 3 Based on the above embodiments, the load beam 31 also has a positioning baffle 315. The positioning baffle 315 is disposed at the end of the mounting rail 311 to form a positioning end 313. The positioning baffle 315 has a limiting hole 315a, and the end of the mating flange 321 has a limiting protrusion 321a protruding from it. The limiting protrusion 321a is inserted into the limiting hole 315a. Therefore, the insertion of the limiting protrusion 321a into the limiting hole 315a can further limit and fix the assembly of the liquid collection tray 32 and the load beam 31, improving the assembly strength and reliability of the two.

[0045] Furthermore, the limiting protrusion 321a extends in a direction parallel to the positioning baffle 315 to form a buckle, which engages with the side of the positioning baffle 315 opposite to the mounting track 311. The engagement of the buckle with the positioning baffle 315 restricts the degree of freedom of the liquid collection tray 32 in moving along the mounting track 311 in the installation direction, thereby preventing the liquid collection tray 32 from detaching from the support beam 31 and improving the assembly stability of the two.

[0046] In some embodiments, the liquid collection assembly 30 further includes a threaded fastener 33. The mounting track 311 has a threaded hole at its open end 312, and the liquid collection tray 32 has a through hole aligned with the threaded hole. The threaded fastener 33 passes through the through hole and is screwed into the threaded hole to securely connect the mounting track 311 and the liquid collection tray 32. This improves the strength and reliability of the assembly connection between the liquid collection tray 32 and the support beam 31. For example, the threaded fastener 33 can be, but is not limited to, bolts or screws.

[0047] Furthermore, based on any of the above embodiments, the liquid collection assembly 30 includes two support beams 31, which are arranged side by side with a gap between them. Each support beam 31 is respectively installed and fitted to one of the two edges of the liquid collection tray 32 in the width direction, and the thermal management unit 10 is supported on the two support beams 31. Therefore, in addition to providing double-sided support for the thermal management unit 10 above, making the installation of the thermal management unit 10 more stable and reliable, the two support beams 31 can also support and fix the two edges of the liquid collection tray 32 in the width direction, making the liquid collection tray 32 more stable and improving its ability to collect leaks.

[0048] To facilitate the installation and positioning of the thermal management unit 10, in some embodiments, the load beam 31 has a support surface 316 for supporting the thermal management unit 10. One end of the support surface 316 in the width direction is bent downward to form or protrude to form a limiting stop 314, and one end of the support surface 316 in the length direction is bent to form or protrude to form a positioning body 317, which abuts against and positions the thermal management unit 10.

[0049] Furthermore, based on any of the above embodiments, the energy storage device 100 also includes a liquid return assembly, which is connected to both the liquid collection assembly 30 and the thermal management unit 10, to transport leaked coolant collected by the liquid collection assembly 30 back to the thermal management unit 10. The liquid return assembly can return the leaked coolant collected on the liquid collection assembly 30 to the thermal management unit 10, thereby enabling the coolant to be recycled, reducing unnecessary coolant loss, improving resource utilization, and lowering costs.

[0050] For example, the liquid return assembly includes a liquid return pipeline and a drive pump. The two ends of the liquid return pipeline are connected to the liquid collection tray 32 and the liquid storage tank in the thermal management unit 10, respectively. The drive pump is connected in the liquid return pipeline to send the leaked liquid collected in the liquid collection tray back to the liquid storage tank.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. An energy storage device, characterized in that, include: Thermal management unit; Electrical modules are spaced apart below the thermal management unit; as well as A liquid collection assembly is provided between the thermal management unit and the electrical module, and the liquid collection assembly is capable of collecting coolant leaking from the thermal management unit; The liquid collection assembly includes at least one support beam and a liquid collection tray. The thermal management unit is supported on the support beam, and the liquid collection tray is installed on the support beam and located between the thermal management unit and the electrical module. The support beam is provided with an installation rail. The energy storage device also includes an installation cabinet, which has a cavity for accommodating the thermal management unit, the electrical module and the liquid collection assembly. The liquid collection assembly is installed in the cavity and divides the cavity into a first installation compartment and a second installation compartment that are longitudinally independent. The thermal management unit is installed in the first installation compartment and the electrical module is installed in the second installation compartment.

2. The energy storage device according to claim 1, characterized in that, The mounting track has an open end and a positioning end that are arranged opposite each other along the length direction of the mounting track. The edge of the liquid collection tray in the width direction can be inserted through the open end and moved along the mounting track until the end of the liquid collection tray in the length direction abuts and is positioned with the positioning end.

3. The energy storage device according to claim 2, characterized in that, The carrier beam is also provided with a limiting stop edge located above the mounting track and bent toward the mounting track. The edge of the liquid collection tray in the width direction is bent to form a matching stop edge. The matching stop edge prevents the limiting stop edge from disengaging from the mounting track, thereby preventing the liquid collection tray from disengaging from the carrier beam.

4. The energy storage device according to claim 3, characterized in that, The load beam has a positioning baffle, which is disposed at the end of the mounting track to form the positioning end. The positioning baffle has a limiting hole, and the end of the mating edge has a limiting protrusion, which is inserted into the limiting hole.

5. The energy storage device according to claim 4, characterized in that, The limiting protrusion has an undercut extending in a direction parallel to the positioning baffle, and the undercut is engaged with the side of the positioning baffle opposite to the mounting track.

6. The energy storage device according to claim 2, characterized in that, The liquid collection assembly also includes a threaded fastener. The mounting track has a threaded hole at the open end. The liquid collection tray has a through hole that aligns with the threaded hole. The threaded fastener passes through the through hole and is screwed into the threaded hole to fix the mounting track and the liquid collection tray.

7. The energy storage device according to claim 1, characterized in that, The liquid collection tray is recessed downwards on the upper surface of the thermal management unit to form a water storage groove; or... The liquid collection tray has a raised water-retaining edge on its upper surface facing the thermal management unit, and the water-retaining edge forms a water-collecting groove.

8. The energy storage device according to claim 3, characterized in that, The load beam has a support surface for supporting the thermal management unit, and one end of the support surface in the width direction is bent downward to form or protrudes to be provided with the limiting stop.

9. The energy storage device according to claim 8, characterized in that, One end of the support surface along its length is bent upward to form or protrude a positioning body, which abuts against and positions the thermal management unit.

10. The energy storage device according to any one of claims 1 to 9, characterized in that, The liquid collection assembly includes two support beams, which are arranged side by side with a gap between them. The two support beams are respectively installed to fit into the two edges of the liquid collection tray in the width direction, and the thermal management unit is supported on the two support beams.

11. The energy storage device according to claim 1, characterized in that, The energy storage device also includes a liquid return component, which is connected to the liquid collection component and the thermal management unit respectively, so as to transport the leaked coolant collected by the liquid collection component back to the thermal management unit.

Images