CN115911674A

CN115911674A - Energy storage device

Info

Publication number: CN115911674A
Application number: CN202211410734.8A
Authority: CN
Inventors: 董庆文
Original assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-04

Abstract

The invention relates to an energy storage device comprising: a thermal management unit; the electrical modules are arranged below the heat management unit at intervals; and the liquid collecting assembly is arranged between the heat management unit and the electrical module in a blocking mode and can receive the cooling liquid leaked from the heat management unit. Because separate between thermal management unit and the electric module and keep off the installation liquid collecting component, even if when the unexpected coolant liquid that takes place leaks in the work of thermal management unit, the weeping receives the fender that separates of liquid collecting component and only can drip to liquid collecting component on, and store up in the convenient regular clearance in liquid collecting component top, the weeping can't drip to the electric module on, and then can not leak and get into the inside short circuit that causes the electrical apparatus part of electric module, the electric module function is normal not only guaranteed, the safety in utilization and the reliability of energy storage cabinet also can be promoted greatly simultaneously.

Description

Energy storage device

Technical Field

The invention relates to the technical field of energy storage, in particular to energy storage equipment.

Background

Currently, the energy storage cabinet is widely applied to various occasions, and the liquid cooling energy storage cabinet is more common. The liquid cooling energy storage cabinet is installed outdoors, and the battery box is cooled by the heat management unit. Particularly, the inside of heat management unit has mobile coolant liquid, and inside the coolant liquid passed through the battery box through the pipeline, can carry out the heat exchange with the inside electric core of battery box to reach the refrigerated effect of cooling down.

However, in actual use, the heat management unit has the possibility of leakage of cooling liquid, when the leakage occurs, the leakage can directly drop to the electrical module below, so that potential safety hazards such as abnormal functions and short circuits of electrical components are caused, and the use safety and reliability of the liquid cooling energy storage cabinet are greatly damaged.

Disclosure of Invention

Based on this, it is necessary to provide an energy storage equipment, aims at solving prior art weeping and causes the electrical components short circuit in the electrical module, endangers energy storage cabinet safe in utilization and reliable problem.

The application provides an energy storage device, it includes:

a thermal management unit;

the electrical modules are arranged below the heat management unit at intervals; and

and the liquid collection assembly is arranged between the thermal management unit and the electrical module in a blocking manner, and can receive the cooling liquid leaked from the thermal management unit.

Among the energy storage equipment of above-mentioned scheme, the heat management unit interval is installed in the top of electric module, owing to separate to keep off between heat management unit and electric module and installed a collection liquid subassembly, even if make when heat management unit work in the unexpected coolant liquid that takes place leak, the weeping receives separating of collection liquid subassembly to keep off and only can drip on collecting the liquid subassembly, and store up in collection liquid subassembly top and clear up regularly just, the weeping can't drip on the electric module, and then can not the seepage get into the inside short circuit that causes electrical components of electric module, not only guaranteed that the electric module function is normal, also can promote the safety in utilization and the reliability of energy storage cabinet greatly simultaneously.

The technical solution of the present application is further described below:

in one embodiment, the liquid collection assembly includes at least one carrier bar on which the thermal management unit is supported and a liquid collection pan mounted on the carrier bar between the thermal management unit and the electrical module.

In one embodiment, the load beam is provided with a mounting rail, the mounting rail is provided with an open end and a positioning end, the open end and the positioning end are oppositely arranged along the length direction of the mounting rail, and the edge part of the drip pan in the width direction can be inserted from the open end and moves along the mounting rail until the end part of the drip pan in the length direction is abutted and positioned with the positioning end.

In one embodiment, the load beam is further provided with a limiting rib which is located above the mounting rail and is bent towards the mounting rail, the edge of the liquid collecting tray in the width direction is bent to form a matching rib, and the matching rib prevents the limiting rib from being separated from the mounting rail so as to prevent the liquid collecting tray from being separated from the load beam.

In one embodiment, the carrier beam is provided with a positioning baffle plate, the positioning baffle plate is arranged at the tail end of the mounting rail to form the positioning end, the positioning baffle plate is provided with a limiting hole, the end part of the matched flange is convexly provided with a limiting bulge, and the limiting bulge is inserted into the limiting hole.

In one embodiment, the limiting protrusion is formed with an inverted buckle extending in a direction parallel to the positioning baffle, and the inverted buckle is buckled with a side surface of the positioning baffle, which is away from the mounting rail.

In one embodiment, the liquid collecting assembly further comprises a threaded fastener, a threaded hole is formed in the position, located at the open end, of the mounting rail, the liquid collecting tray is provided with a through hole aligned with the threaded hole, and the threaded fastener penetrates through the through hole and then is screwed in the threaded hole to fixedly connect the mounting rail and the liquid collecting tray.

In one embodiment, a water storage groove is formed in a downward concave mode on the upper surface, facing the heat management unit, of the liquid collecting disc; or,

the upper surface of the liquid collecting disc facing the heat management unit is convexly provided with a circle of water retaining edges, and the water retaining edges are surrounded to form a water storage groove.

In one embodiment, the load beam is provided with a supporting surface for bearing the heat management unit, and one end of the supporting surface in the width direction is bent downwards to form or is convexly provided with the limiting rib.

In one embodiment, one end of the supporting surface in the length direction is bent upwards to form or is convexly provided with a positioning body, and the positioning body is abutted and positioned with the thermal management unit.

In one embodiment, the liquid collecting assembly comprises two load beams, the two load beams are arranged side by side at intervals, the two load beams are respectively matched and installed with two edge portions in the width direction of the liquid collecting tray, and the heat management unit is supported on the two load beams.

In one embodiment, the energy storage device further comprises a mounting cabinet, the mounting cabinet is provided with a containing cavity for containing the thermal management unit, the electrical module and the liquid collecting component, the liquid collecting component is arranged in the containing cavity, the liquid collecting component divides the containing cavity into a first mounting bin and a second mounting bin which are longitudinally and independently distributed, the thermal management unit is arranged in the first mounting bin, and the electrical module is arranged in the second mounting bin.

In one embodiment, the energy storage device further comprises a liquid backflow assembly, and the liquid backflow assembly is communicated with the liquid collection assembly and the heat management unit respectively so as to convey leaked cooling liquid received by the liquid collection assembly back into the heat management unit.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an energy storage device according to an embodiment of the present application;

FIG. 2 is an assembled structural view of the liquid collection assembly of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 2;

figure 4 is an exploded view of the liquid trap assembly of figure 2.

Description of reference numerals:

100. an energy storage device; 10. a thermal management unit; 20. an electrical module; 30. a liquid collection assembly; 31. a load beam; 311. installing a track; 312. an open end; 313. a positioning end; 314. limiting and blocking edges; 315. positioning a baffle plate; 315a, a limiting hole; 316. a support surface; 317. a positioning body; 32. a liquid collecting tray; 321. matching with the flange; 321a and a limiting bulge; 3211a, reversing; 33. a threaded fastener; 40. installing a cabinet; 41. a first installation bin; 42. and a second mounting bin.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, an energy storage device 100 is shown for an embodiment of the present application, which includes: a thermal management assembly 10, an electrical module 20, and a liquid collection assembly 30.

In addition, energy storage device 100 still includes installation cabinet 40, and installation cabinet 40 has the chamber that holds thermal management unit 10, electrical module 20 and collection liquid subassembly 30, and collection liquid subassembly 30 is installed in holding the intracavity. In this embodiment, the installation cabinet 40 is a vertical square cabinet, and is composed of a cabinet body and an opening/closing door, and the opening/closing door is rotatably installed on the cabinet body, so that the functional components of the thermal management unit 10, the electrical module 20, the battery box and the like can be conveniently assembled and disassembled. The liquid collecting component 30 is installed on the inner wall of the accommodating cavity, and the installation mode can be any one of, but not limited to, screw connection, buckle connection and the like.

The liquid collecting assembly 30 divides the containing cavity into a first mounting bin 41 and a second mounting bin 42 which are longitudinally and independently distributed, and the electrical modules 20 are arranged below the thermal management unit 10 at intervals; the thermal management unit 10 is mounted in the first mounting bin 41 and the electrical module 20 is mounted in the second mounting bin 42. In this way, the thermal management unit 10 and the electrical module 20 can be prevented from interfering with each other during operation, and thus the working performance can be ensured. It should be noted that the first installation bin 41 and the second installation bin 42 are independently distributed, but the two installation bins are not limited to be completely isolated from each other, and at least the requirements of necessary cable connection and routing need to be met.

It should be noted that the installation cabinet 40 is not limited to have only two chambers, namely, the first installation chamber 41 and the second installation chamber 42, and three or more installation chambers may be designed according to actual needs.

The liquid collecting assembly 30 is arranged between the thermal management unit 10 and the electrical module 20 in a blocking manner, and the liquid collecting assembly 30 can receive the cooling liquid leaked from the thermal management unit 10.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: in the energy storage device 100 of the above scheme, the thermal management unit 10 is installed above the electrical module 20 at intervals, and the liquid collecting assembly 30 is installed between the thermal management unit 10 and the electrical module 20 at intervals, so that even if coolant leaks accidentally during the operation of the thermal management unit 10, the leaked liquid is blocked by the liquid collecting assembly 30 and only drips on the liquid collecting assembly 30, and is stored above the liquid collecting assembly 30 to be cleaned regularly, the leaked liquid cannot drip on the electrical module 20, and further the leaked liquid cannot enter the electrical module 20 to cause short circuit to electrical components, so that the normal function of the electrical module 20 is ensured, and meanwhile, the use safety and reliability of the energy storage cabinet can be greatly improved.

With continued reference to fig. 2-4, in some embodiments, the liquid collection assembly 30 includes at least one load beam 31 on which the thermal management unit 10 is supported and a liquid collection pan 32 mounted on the load beam 31 between the thermal management unit 10 and the electrical module 20. During installation, the carrying beam 31 is fixed on the inner wall of the installation cabinet 40 through at least one of the screw connection and the buckle connection, so that the carrying beam 31 can stably carry the thermal management unit 10 and can also carry and support the liquid collecting tray 32, and the liquid collecting tray 32 can keep a horizontal posture so as to reliably carry and collect leaked liquid dripped by the thermal management unit 10 above.

Further, a water storage groove is formed on the downward concave surface of the upper surface of the liquid collecting tray 32 facing the heat management unit 10. Or, as an alternative to the above embodiment, a circle of water retaining edge is convexly arranged on the upper surface of the drip pan 32 facing the thermal management unit 10, and the water retaining edge is surrounded to form a water storage groove.

Through design out on drip pan 32 and deposit the water recess, can make the weeping that drips on drip pan 32 assemble in depositing the water recess, avoid the weeping to flow around along drip pan 32 and unexpected drip on the electric module 20 of below.

As shown in fig. 4, in some embodiments, the load beam 31 is provided with a mounting rail 311, the mounting rail 311 has an open end 312 and a positioning end 313 which are oppositely arranged along the length direction of the mounting rail 311, and the edge part of the drip pan 32 in the width direction can be inserted from the open end 312 and moved along the mounting rail 311 until the end part of the drip pan 32 in the length direction abuts against the positioning end 313 for positioning. When the drip pan 32 is mounted, the edge of the drip pan 32 is moved along the mounting rail 311 until the end of the drip pan 32 abuts against the positioning end 313 by aligning the end of the drip pan 32 with the open end 312 and then pushing the drip pan 32, thereby completing the positioning mounting. Whole mounting structure and mode are simple, and the simple operation is laborsaving, can effectively promote collection liquid subassembly 30 packaging efficiency and experience and feel.

Furthermore, the carrier beam 31 is further provided with a stopper rib 314 which is positioned above the mounting rail 311 and is bent toward the mounting rail 311, an edge portion of the drip pan 32 in the width direction is bent to form an engaging rib 321, and the engaging rib 321 prevents the stopper rib 314 from being separated from the mounting rail 311 to prevent the drip pan 32 from being separated from the carrier beam 31. Thereby ensuring that the drip pan 32 is firmly and reliably connected with the carrier beam 31.

Referring to fig. 2 and fig. 3, on the basis of the above embodiment, the carrier beam 31 further 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 is provided with a limiting hole 315a, a limiting protrusion 321a is convexly disposed at the end of the matching rib 321, and the limiting protrusion 321a is inserted into the limiting hole 315 a. Therefore, the limiting protrusions 321a are inserted into the limiting holes 315a, so that the assembly of the drip pan 32 and the carrier beam 31 can be further limited and fixed, and the assembly strength and reliability of the drip pan 32 and the carrier beam 31 are improved.

Furthermore, the limiting protrusion 321a extends in a direction parallel to the positioning baffle 315 to form an inverted buckle, and the inverted buckle is buckled with a side surface of the positioning baffle 315 away from the mounting rail 311. The reversed buckle and the positioning baffle 315 are buckled, so that the freedom degree of the liquid collecting tray 32 in the moving and installing direction along the installing track 311 can be limited, the liquid collecting tray 32 is prevented from being separated from the load beam 31, and the assembling stability of the liquid collecting tray and the load beam is improved.

In still other embodiments, the drip assembly 30 further comprises a threaded fastener 33, a threaded hole is formed in the mounting rail 311 at the open end 312, the drip pan 32 is provided with a through hole aligned with the threaded hole, and the threaded fastener 33 is threaded into the threaded hole after passing through the through hole to fixedly connect the mounting rail 311 and the drip pan 32. Therefore, the assembly and connection strength and reliability of the drip pan 32 and the load beam 31 can be improved. For example, the threaded fastener 33 may be, but is not limited to, a bolt, screw.

In addition, on the basis of any of the above embodiments, the liquid collecting assembly 30 comprises two load beams 31, the two load beams 31 are arranged side by side at intervals, the two load beams 31 are respectively correspondingly installed and matched with two edge portions in the width direction of the liquid collecting tray 32 one by one, and the thermal management unit 10 is supported on the two load beams 31. Therefore, the two carrying beams 31 can form bilateral mounting support for the upper thermal management unit 10, so that the thermal management unit 10 is more stably and reliably mounted, and can also support and fix the two side edge parts in the width direction of the drip pan 32, so that the drip pan 32 is stably mounted, and the capability of carrying leaked liquid is improved.

In order to facilitate the installation and positioning of the thermal management unit 10, in some embodiments, the carrier beam 31 has a supporting surface 316 for supporting the thermal management unit 10, one end of the supporting surface 316 in the width direction is bent downward to form or protrude a limiting rib 314, one end of the supporting surface 316 in the length direction is bent to form or protrude a positioning body 317, and the positioning body 317 abuts against and is positioned on the thermal management unit 10.

In addition, on the basis of any of the above embodiments, the energy storage device 100 further includes a liquid backflow assembly, and the liquid backflow assembly is respectively communicated with the liquid collection assembly 30 and the thermal management unit 10, so as to convey the leaked coolant received by the liquid collection assembly 30 back to the thermal management unit 10. The liquid backflow assembly can send leaked liquid (cooling liquid) collected on the liquid collection assembly 30 back to the heat management unit 10, so that the cooling liquid can be recycled, unnecessary loss of the cooling liquid is reduced, the resource utilization rate is improved, and the cost is reduced.

For example, the liquid return assembly includes a liquid return line and a driving pump, both ends of the liquid return line are respectively connected to the liquid storage tank in the liquid collection tray 32 and the thermal management unit 10, and the driving pump is connected to the liquid return line to return the leaked liquid collected in the liquid collection tray to the liquid storage tank.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. An energy storage device, comprising:

a thermal management unit;

2. The energy storage device of claim 1, wherein the liquid collection assembly comprises at least one load beam on which the thermal management unit is supported and a liquid collection pan mounted on the load beam between the thermal management unit and the electrical module.

3. The energy storage device of claim 2, wherein the load beam is provided with a mounting rail having an open end and a positioning end which are oppositely arranged along the length direction of the mounting rail, and the edge part of the drip pan in the width direction can be inserted into the open end and move along the mounting rail until the end part of the drip pan in the length direction is abutted with the positioning end for positioning.

4. The energy storage device as claimed in claim 3, wherein the carrier beam is further provided with a limiting rib which is located above the mounting rail and is bent towards the mounting rail, and the edge of the drip pan in the width direction is bent to form a matching rib which prevents the limiting rib from being separated from the mounting rail so as to prevent the drip pan from being separated from the carrier beam.

5. The energy storage device of claim 4, wherein the load beam has a positioning baffle disposed at a terminal end of the mounting rail to form the positioning end, the positioning baffle has a limiting hole, and the end of the mating flange has a protruding limiting protrusion inserted into the limiting hole.

6. The energy storage device of claim 4, wherein the limiting protrusion is formed with an inverted buckle extending in a direction parallel to the positioning baffle, and the inverted buckle is fastened with a side surface of the positioning baffle, which is away from the mounting rail.

7. The energy storage device of claim 3, wherein the drip catcher assembly further comprises a threaded fastener, a threaded hole is formed in a portion of the mounting rail located at the open end, a through hole aligned with the threaded hole is formed in the drip catcher, and the threaded fastener penetrates through the through hole and then is screwed into the threaded hole to fixedly connect the mounting rail and the drip catcher.

8. The energy storage device as claimed in claim 2, wherein the upper surface of the drip pan facing the thermal management unit is provided with a water storage groove in a downward concave manner; or,

9. The energy storage device according to claim 4, wherein the load beam has a supporting surface for supporting the thermal management unit, and one end of the supporting surface in the width direction is bent downwards to form or is provided with the limiting rib in a protruding manner.

10. The energy storage device of claim 9, wherein one end of the support surface in the length direction is bent upwards to form or protrude to form a positioning body, and the positioning body is abutted and positioned with the thermal management unit.

11. The energy storage device according to any one of claims 2 to 10, wherein the liquid collecting assembly comprises two load beams, the two load beams are arranged side by side at intervals, the two load beams are respectively matched and installed with two edge portions in the width direction of the liquid collecting tray, and the heat management unit is supported on the two load beams.

12. The energy storage device according to claim 1, further comprising a mounting cabinet, wherein the mounting cabinet has a containing cavity for containing the thermal management unit, the electrical module and the liquid collecting component, the liquid collecting component is installed in the containing cavity, the liquid collecting component divides the containing cavity into a first installing bin and a second installing bin which are longitudinally and independently distributed, the thermal management unit is installed in the first installing bin, and the electrical module is installed in the second installing bin.

13. The energy storage device of claim 1, further comprising a liquid return assembly in communication with the liquid collection assembly and the thermal management unit, respectively, to deliver leaked coolant received by the liquid collection assembly back into the thermal management unit.