Pack structure of energy storage battery

Abstract

The utility model relates to an energy storage battery Pack structure which comprises a case cover, a case bottom plate, a battery module, heat-conducting glue and a panel, the battery module is arranged on the case bottom plate, and the heat-conducting glue is arranged between the battery module and the case bottom plate; the case cover is arranged on the case bottom plate in a covering manner; the panel is arranged at one end of the case cover in a covering mode, and the panel abuts against the case bottom plate. A plurality of radiating fins are arranged on the bottom surface of the case bottom plate; and a first gap is formed between every two adjacent radiating fins. According to the structure, the heat conductivity and the heat dissipation area of the energy storage battery Pack structure are greatly increased, so that heat generated in the operation process of the battery module can be quickly dissipated through the heat dissipation fins of the case bottom plate, the heat dissipation effect of the energy storage battery Pack structure can be effectively improved, and the energy storage battery Pack structure is good in heat dissipation effect, convenient to install, relatively good in stability, economical, safe and practical; and the requirements of actual use can be well met.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and in particular relates to an energy storage battery pack structure. Background Technology

[0002] With the rapid development of new energy power generation, smart grids, and electric vehicles, energy storage battery systems (such as lithium-ion batteries and sodium-sulfur batteries) have become core energy storage carriers due to their high energy density and cycle performance. However, during charging and discharging, the internal resistance of the battery generates heat, leading to a rise in temperature. If this heat cannot be dissipated in time, it will cause problems such as uneven temperature distribution within the battery pack, reduced cycle life, and even thermal runaway, seriously threatening the safety and economy of the system. Therefore, efficient thermal management technology is a key aspect of energy storage battery pack design.

[0003] Currently, heat dissipation solutions for energy storage battery packs are mainly divided into two categories: passive natural heat dissipation and active liquid cooling.

[0004] Natural heat dissipation via planar sheet metal typically transfers battery heat to the pack surface through the thermal conductivity of the metal casing (such as aluminum alloy sheet metal), and then relies on natural air convection for heat dissipation. This solution is simple in structure and low in cost, but its heat dissipation efficiency is greatly affected by ambient temperature, and due to the long thermal conduction path and high thermal resistance of the sheet metal, it is difficult to meet the temperature uniformity requirements under high power conditions.

[0005] Liquid cooling typically involves embedding liquid cooling plates between battery modules, relying on the circulation of coolant to forcibly remove heat. Its heat dissipation capacity is significantly better than natural heat dissipation, but it has disadvantages such as high system complexity (requiring components such as pumps, pipelines, and heat exchangers), strict sealing requirements, and high maintenance costs. It is particularly uneconomical for small and medium-sized energy storage scenarios.

[0006] Therefore, there is an urgent need to develop a new heat dissipation technology that can address the shortcomings of existing solutions in terms of temperature uniformity, adaptability, and reliability, while taking into account both lightweight and low cost. Utility Model Content

[0007] The purpose of this utility model is to provide an energy storage battery pack structure to solve the technical problems of existing sheet metal heat conduction paths being long, having high thermal resistance, small natural heat dissipation surface area, low sheet metal heat conduction efficiency, slow overall heat dissipation, and difficulty in meeting the requirements of temperature uniformity, adaptability, and reliability under high power conditions.

[0008] To achieve the above objectives, this utility model provides an energy storage battery pack structure, including a chassis cover, a chassis base plate, a battery module, thermally conductive adhesive, and a panel; the battery module is disposed on the chassis base plate, and the thermally conductive adhesive is disposed between the battery module and the chassis base plate; the chassis cover is disposed on the chassis base plate; the panel is disposed on one end of the chassis cover, and the panel abuts against the chassis base plate; a plurality of heat dissipation fins are provided on the bottom surface of the chassis base plate; a first gap is provided between adjacent heat dissipation fins.

[0009] In a preferred embodiment, a plurality of the heat dissipation fins are arranged at equal intervals; the heat dissipation fins are integrally formed with the chassis base plate.

[0010] In a preferred embodiment, a plurality of the heat dissipation fins are arranged in parallel to each other; the distance between two adjacent heat dissipation fins is greater than the height of the heat dissipation fins.

[0011] In a preferred embodiment, each of the heat dissipation fins is an elongated plate; the elongated plate extends from one side of the chassis bottom plate to the other side of the chassis bottom plate.

[0012] In a preferred embodiment, a groove is provided on the chassis base plate, and the thermally conductive adhesive and the battery module are both disposed in the groove, and the thermally conductive adhesive and the battery module are respectively adapted to the groove.

[0013] In a preferred embodiment, both ends of the bottom of the battery module are provided with L-shaped grooves that are adapted to the groove, and the battery module is engaged in the groove through the L-shaped grooves.

[0014] In a preferred embodiment, the chassis cover includes two integrally formed side plates, a top plate, and an end plate. The two side plates are symmetrically arranged on both sides of the top plate, and the end plate is arranged at one end of the top plate, with the end plate opposite to the front panel. The two side plates and the top plate are respectively abutted against the front panel.

[0015] In a preferred embodiment, a second gap is provided between the side plate and the battery module, and between the end plate and the battery module.

[0016] In a preferred embodiment, multiple heat dissipation holes are provided on both side plates and the end plate for heat dissipation; the multiple heat dissipation holes are evenly distributed.

[0017] In a preferred embodiment, the plurality of heat dissipation holes are arranged at equal intervals and are arranged parallel to each other; the plurality of heat dissipation holes are arranged in a row and in a column.

[0018] In a preferred embodiment, each of the two side panels is provided with a handle at one end near the panel, and the two handles are arranged symmetrically.

[0019] In a preferred embodiment, the battery module is a lithium-ion battery module or a lead-acid battery module.

[0020] The technical solution proposed in this utility model has the following beneficial effects: By setting thermally conductive adhesive between the battery module and the chassis base plate and setting heat dissipation fins on the chassis base plate, the thermal conductivity and heat dissipation area of ​​the energy storage battery pack structure are greatly increased. This allows the heat generated by the battery module during operation to be quickly transferred to the chassis base plate through the thermally conductive adhesive, and then quickly dissipated through the heat dissipation fins on the chassis base plate. This effectively improves the heat dissipation effect of the energy storage battery pack structure, resulting in good heat dissipation, convenient installation, good stability, and economical, safe and practical performance, which can well meet the needs of actual use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an energy storage battery pack according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the energy storage battery pack structure from another angle;

[0023] Figure 3 for Figure 1 An exploded view of the energy storage battery pack structure. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, top, bottom, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] like Figures 1 to 3 As shown, this utility model embodiment provides an energy storage battery pack structure, including a chassis cover 10, a chassis base plate 20, a battery module 30, thermally conductive adhesive 40, and a panel 50; the battery module 30 is disposed on the chassis base plate 20, and the thermally conductive adhesive 40 is disposed between the battery module 30 and the chassis base plate 20; the chassis cover 10 is disposed on the chassis base plate 20; the panel 50 is disposed on one end of the chassis cover 10, and the panel 50 abuts against the chassis base plate 20; the bottom surface of the chassis base plate 20 is provided with a plurality of heat dissipation fins 21; a first gap 22 is provided between adjacent heat dissipation fins 21.

[0030] In a preferred embodiment, a plurality of heat dissipation fins 21 are arranged at equal intervals; the heat dissipation fins 21 are integrally formed with the chassis base plate 20.

[0031] In a preferred embodiment, a plurality of the heat dissipation fins 21 are arranged parallel to each other; the distance between two adjacent heat dissipation fins 21 is greater than the height of the heat dissipation fins 21. In this way, the heat dissipation effect of the heat dissipation fins 21 can be further guaranteed.

[0032] In a preferred embodiment, each of the heat dissipation fins 21 is an elongated plate; the elongated plate extends from one side of the chassis base plate 20 to the other side of the chassis base plate 20. This arrangement can further increase the heat dissipation area of ​​the energy storage battery pack structure.

[0033] In this embodiment, a baffle (not shown in the figure) is provided at the end of each heat dissipation fin away from the panel, and the baffle abuts against each heat dissipation fin. The baffle is integrally formed with the chassis base plate. In this way, while ensuring efficient heat dissipation, the strength of the heat dissipation fins can be effectively guaranteed, thus ensuring the service life of the heat dissipation fins.

[0034] In a preferred embodiment, the chassis base plate 20 is provided with a groove 23, and the thermal conductive adhesive 40 and the battery module 30 are both disposed in the groove 23, and the thermal conductive adhesive 40 and the battery module 30 are respectively adapted to the groove 23.

[0035] In a preferred embodiment, both ends of the bottom of the battery module 30 are provided with L-shaped grooves 31 that are adapted to the grooves 23, and the battery module 30 is secured in the grooves 23 through the L-shaped grooves 31. This design facilitates the fixing of the battery module 30 and effectively saves space in the chassis.

[0036] In a preferred embodiment, the chassis cover 10 includes two integrally formed side plates 11, a top plate 12, and an end plate 13. The two side plates 11 are symmetrically arranged on both sides of the top plate 12, and the end plate 13 is disposed at one end of the top plate 12, and the end plate 13 is disposed opposite to the front panel 50. The two side plates 11 and the top plate 12 are respectively abutted against the front panel 50. This ensures better sealing of the chassis and facilitates installation and disassembly.

[0037] In a preferred embodiment, a second gap is provided between the side plate 11 and the battery module 30, and between the end plate 13 and the battery module 30. This second gap effectively improves the heat dissipation of the chassis and provides sufficient space for component installation, thus saving chassis space and reducing chassis size.

[0038] In a preferred embodiment, both side plates 11 and the end plate 13 are provided with a plurality of heat dissipation holes 60 for heat dissipation; the plurality of heat dissipation holes 60 are evenly distributed.

[0039] In a preferred embodiment, the plurality of heat dissipation holes 60 are arranged at equal intervals and are parallel to each other; the plurality of heat dissipation holes 60 are arranged in a row and in a column. This arrangement ensures efficient heat dissipation while achieving a reasonable layout of the components, thereby effectively saving space, reducing the volume of the battery chassis, and effectively improving the energy density of the battery chassis.

[0040] In a preferred embodiment, each of the two side plates 11 is provided with a handle 70 at one end near the panel 50, and the two handles 70 are arranged symmetrically.

[0041] In a preferred embodiment, the battery module 30 is a lithium-ion battery module or a lead-acid battery module.

[0042] This application's structure significantly increases the thermal conductivity and heat dissipation area of ​​the energy storage battery pack structure by placing thermally conductive adhesive between the battery module and the chassis base plate, and by placing heat dissipation fins on the chassis base plate. This allows the heat generated by the battery module during operation to be quickly transferred to the chassis base plate through the thermally conductive adhesive, and then quickly dissipated through the heat dissipation fins on the chassis base plate. This effectively improves the heat dissipation effect of the energy storage battery pack structure, resulting in good heat dissipation, convenient installation, good stability, and economical, safe, and practical performance, which can well meet the needs of actual use.

[0043] Unless otherwise specified, the components in this application are generally fixed or connected using screws, which facilitates production and assembly, and also makes it easy to disassemble and repair the battery when problems occur. This utility model has a simple structure, high space utilization, convenient installation, good stability, and is economical and practical, with broad application prospects.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An energy storage battery pack structure, characterized in that, It includes a chassis cover, a chassis base plate, a battery module, thermally conductive adhesive, and a panel; the battery module is disposed on the chassis base plate, and the thermally conductive adhesive is disposed between the battery module and the chassis base plate; The chassis cover is disposed on the chassis base plate; the panel is disposed on one end of the chassis cover and abuts against the chassis base plate; the bottom surface of the chassis base plate is provided with a plurality of heat dissipation fins; a first gap is provided between adjacent heat dissipation fins.

2. The energy storage battery pack structure according to claim 1, characterized in that, Several heat dissipation fins are arranged at equal intervals; the heat dissipation fins are integrally formed with the chassis base plate.

3. The energy storage battery pack structure according to claim 1, characterized in that, Several heat dissipation fins are arranged in parallel to each other; the distance between two adjacent heat dissipation fins is greater than the height of the heat dissipation fins.

4. The energy storage battery pack structure according to claim 1, characterized in that, Each of the heat dissipation fins is an elongated strip plate; the elongated strip plate extends from one side of the chassis bottom plate to the other side of the chassis bottom plate; A baffle is provided at the end of each heat dissipation fin away from the panel, and the baffle is respectively abutted against each heat dissipation fin.

5. The energy storage battery pack structure according to claim 1, characterized in that, The chassis base plate is provided with a groove, and the thermal conductive adhesive and the battery module are both disposed in the groove, and the thermal conductive adhesive and the battery module are respectively adapted to the groove.

6. The energy storage battery pack structure according to claim 5, characterized in that, Both ends of the bottom of the battery module are provided with L-shaped grooves that are adapted to the groove, and the battery module is fitted into the groove through the L-shaped grooves.

7. The energy storage battery pack structure according to claim 1, characterized in that, The chassis cover includes two integrally formed side panels, a top panel, and an end panel. The two side panels are symmetrically arranged on both sides of the top panel, and the end panel is located at one end of the top panel and is arranged opposite to the front panel. The two side panels and the top panel are respectively abutted against the front panel.

8. The energy storage battery pack structure according to claim 7, characterized in that, A second gap is provided between the side plate and the battery module, and between the end plate and the battery module; The two side plates and the end plates are each provided with a plurality of heat dissipation holes for heat dissipation; the plurality of heat dissipation holes are evenly distributed.

9. The energy storage battery pack structure according to claim 8, characterized in that, The heat dissipation holes are arranged at equal intervals and are arranged parallel to each other; the heat dissipation holes are arranged in a row and in a column.

10. The energy storage battery pack structure according to claim 7, characterized in that, Each of the two side panels is provided with a handle at one end near the panel, and the two handles are arranged symmetrically. The battery module is either a lithium-ion battery module or a lead-acid battery module.

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