Top liquid cooling energy storage battery box

Abstract

The utility model relates to the technical field of energy storage batteries, and discloses a top liquid cooling energy storage battery box which comprises a protective cover and a base, the protective cover and the base are connected through a plurality of fixing assemblies, a battery pack is installed in the base, a liquid cooling mechanism is arranged on the outer side of the battery pack, and an exhaust fan is installed on the top of the protective cover. The fixing assembly comprises an adjusting plate, two plug pins are fixedly connected to the side, close to the protective cover, of the adjusting plate, limiting plates are fixedly connected to the middles of the plug pins, and springs are arranged on the outer sides of the plug pins in a sleeving mode. According to the utility model, the protective cover and the base are connected through the buckle type structure, so that the installation is simplified, the stability is improved, and the maintenance and repair are convenient. Meanwhile, water-absorbing silicone grease is adopted to prevent condensation water outside the battery pack from being accumulated in the liquid cooling process, the battery environment is kept dry, the short circuit risk is avoided, the battery safety is guaranteed, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage battery technical field especially relates to a top liquid cooling energy storage battery box. BACKGROUND

[0002] Energy storage battery technology develops rapidly in recent years, with the increase of new energy demand, energy storage system is increasingly widely used in electric power storage, electric vehicles and renewable energy fields. With the increase of battery capacity and the improvement of charge and discharge power, the battery will generate a lot of heat in the working process, which will affect its performance and life. In order to avoid the performance degradation, thermal runaway or safety problem caused by overheating, more and more energy storage battery systems begin to use liquid cooling device.

[0003] However, the existing liquid cooling system is prone to form condensate on the outside of the battery pack under large temperature difference, which increases the risk of short circuit and affects the safety and stability of the battery pack. In addition, the connection between the protective cover and the base of the existing battery box usually relies on screw fixation, which is relatively cumbersome during disassembly and maintenance, especially in the high-frequency maintenance environment. Screw connection not only increases the complexity of work, but also affects the fastening effect after long-term use of the equipment.

[0004] In view of the above problems, a top liquid cooling energy storage battery box is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a kind of top liquid cooling energy storage battery box, to solve the condensate accumulation of the existing energy storage battery box in liquid cooling process and the inconvenient connection between protective cover and base, disassembly difficult problem.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of top liquid cooling energy storage battery box, including protective cover and base, which are connected by a plurality of fixed components, the inside of the base is installed with battery pack, the outside of the battery pack is provided with liquid cooling mechanism, the top of the protective cover is installed with exhaust fan;

[0007] The fixed component includes an adjusting plate, the side close to the protective cover of the adjusting plate is fixedly connected with two latches, the middle part of the latch is fixedly connected with a limiting plate, and the outside of the latch is sleeved with a spring.

[0008] As a further description of the above technical scheme:

[0009] The inner wall of the protective cover is provided with a sliding groove, the limiting plate is slidably connected in the inner wall of the sliding groove, and the spring is located in the inner wall of the sliding groove.

[0010] As a further description of the above technical scheme:

[0011] One end of the spring is fixedly connected to the inner wall of the sliding groove, and the other end of the spring is fixedly connected to the outer side of the limiting plate.

[0012] As a further description of the above technical solution:

[0013] Two fixed holes are symmetrically arranged on the front and rear side walls of the protective cover, and the bolt is inserted into the fixed holes.

[0014] As a further description of the above technical solution:

[0015] Horizontal baffle plates are installed on the left and right sides of the protective cover, and a partition plate is fixedly connected to the inner side of the protective cover.

[0016] As a further description of the above technical solution:

[0017] The liquid cooling mechanism comprises a plurality of flow distribution pipes, a circulating assembly and a liquid cooling plate, the plurality of flow distribution pipes are distributed on the outer side of the battery pack, the liquid cooling plate is fixedly connected to the inside of the protective cover and located directly below the partition plate, and the circulating assembly comprises a cooling box, and pumps and total and partial flow pipes are arranged on both sides of the cooling box.

[0018] As a further description of the above technical solution:

[0019] The top of the battery pack and the bottom of the liquid cooling plate abut against each other, the bottoms of the two total and partial flow pipes are connected to the total pipes on both sides of the plurality of flow distribution pipes, and the output end of one of the pumps is connected to the inside of the cooling box through a hose, and the input end of the other pump is connected to the inside of the cooling box through a hose.

[0020] As a further description of the above technical solution:

[0021] A plurality of inner grooves are formed in the inner sides of the base, and water-absorbing silicone grease is assembled in the inner grooves.

[0022] As a further description of the above technical solution:

[0023] A plurality of horizontal reinforcing ribs and vertical reinforcing ribs are arranged in the interior of the base and are weldedly connected.

[0024] The utility model has the following beneficial effects:

[0025] 1. In this utility model, the connection between the battery box's protective cover and the base adopts a snap-fit ​​structure. By pulling the adjusting plate, the pin drives the limiting plate to slide along the side wall of the base, thereby compressing the spring inside the base. At this time, the protective cover can be smoothly inserted into the base. Releasing the adjusting plate at the appropriate position causes the spring's reaction force to automatically enter the fixing hole, completing the secure connection between the protective cover and the base. This not only simplifies the installation process but also improves the robustness and durability of the protective cover, avoiding the disassembly difficulties caused by traditional screw fixing, and facilitating the maintenance and repair of the battery pack.

[0026] 2. In this invention, to prevent condensation from forming on the outside of the battery pack due to excessive temperature difference during liquid cooling, thus avoiding the risk of a short circuit, a water-absorbing silicone grease material is used inside the battery box. This silicone grease has excellent hygroscopic properties, effectively absorbing and isolating condensation to prevent moisture accumulation on the outside of the battery pack. The hygroscopic properties of the silicone grease not only reduce the damage of condensation to the battery casing but also improve overall thermal management efficiency, maintaining a dry and stable battery operating environment, thereby ensuring battery safety and extending its service life. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of a top-cooled energy storage battery box proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the battery pack structure of a top-cooled energy storage battery box proposed in this utility model;

[0029] Figure 3 This is a schematic diagram of the water-absorbing silicone grease for a top-cooled energy storage battery box proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the latch of a top liquid-cooled energy storage battery box proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the cooling box structure of a top-cooled liquid-cooled energy storage battery box proposed in this utility model.

[0032] Legend:

[0033] 1. Protective cover; 11. Fixing hole; 12. Horizontal baffle; 13. Partition; 2. Base; 21. Horizontal reinforcing rib; 22. Vertical reinforcing rib; 3. Fixing assembly; 301. Adjusting plate; 302. Pin; 303. Limiting plate; 304. Spring; 4. Exhaust fan; 5. Battery pack; 6. Water-absorbing silicone grease; 7. Liquid cooling mechanism; 71. Flow branch pipe; 72. Circulation assembly; 721. Cooling tank; 722. Pump; 723. Main branch pipe; 73. Liquid cooling plate. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a top-cooled liquid-cooled energy storage battery box, including a protective cover 1 and a base 2, which are connected by multiple fixing components 3. Horizontal baffles 12 are installed on both the left and right sides of the protective cover 1. These baffles not only strengthen the structural strength of the protective cover 1 but also effectively block external environmental interference to the battery pack 5. A partition 13 is fixedly connected to the inner side of the protective cover 1. This partition 13 is used to divide the internal space, rationally arrange the layout, and improve the thermal management efficiency of the battery box. The battery pack 5 is installed inside the base 2, and a liquid cooling mechanism 7 is provided on the outer side of the battery pack 5. The liquid cooling mechanism 7 effectively removes the heat generated by the battery pack 5 during charging and discharging through circulating coolant, keeping the operating temperature of the battery pack 5 within a safe range. An exhaust fan 4 is installed on the top of the protective cover 1. This exhaust fan 4 can circulate air during equipment operation, helping to dissipate heat and expel the hot air carried by the coolant. The base 2 has multiple horizontal reinforcing ribs 21 and vertical reinforcing ribs 22 inside, which enhances the overall structural strength of the base 2, improves the pressure resistance and shock resistance of the battery pack 5, and ensures a stable structure under different working conditions. Multiple inner grooves are opened on both sides of the base 2, and water-absorbing silicone grease 6 is installed in the inner grooves. The water-absorbing silicone grease 6 can effectively absorb condensation, preventing it from accumulating on the outside of the battery pack 5 and avoiding short circuits or other safety hazards caused by moisture entering the battery.

[0036] Reference Figure 4 The fixing component 3 includes an adjusting plate 301, one side of which is close to the protective cover 1 and fixedly connected to two pins 302. A limiting plate 303 is fixedly connected to the middle of each pin 302, and the limiting plate 303 is slidably connected in a groove inside the side wall of the protective cover 1. A spring 304 is sleeved on the outside of each pin 302. The spring 304 is located inside the groove and provides elastic support at both ends. One end is fixedly connected to the inner wall of the groove, and the other end is fixedly connected to the outside of the limiting plate 303, ensuring that the pin 302 can enhance the locking stability and self-locking function under the action of the spring 304. Two fixing holes 11 are symmetrically opened on both the front and rear side walls of the protective cover 1, and the pins 302 can be inserted into these fixing holes 11 to ensure that the protective cover 1 is firmly and stably fixed.

[0037] Reference Figure 5The liquid cooling mechanism 7 includes multiple flow branches 71, a circulation assembly 72, and a liquid cooling plate 73. These flow branches 71 are evenly distributed on the outside of the battery pack 5, responsible for guiding the coolant to the surface of the battery pack 5, thereby effectively removing the heat generated by the battery pack 5 during operation. The liquid cooling plate 73 is fixedly connected inside the protective cover 1, located directly below the partition 13. The liquid cooling plate 73 ensures good contact between the top of the battery pack 5 and the bottom of the liquid cooling plate 73, further enhancing the heat dissipation effect. The circulation assembly 72 includes a cooling tank 721, with pumps 722 and a main branch pipe 723 on both sides. The pumps 722 provide circulation power, driving the coolant to flow in the system and maintaining a continuous cooling effect. The main branch pipe 723 connects to both sides of the multiple flow branches 71, ensuring even distribution of the coolant. The bottom of the cooling tank 721 is connected to the main pipe of the multiple flow branches 71, ensuring that the coolant can flow to every area of ​​the battery pack 5, achieving a comprehensive cooling effect. The two pumps 722 work together, with the output of one pump 722 connected to the inside of the cooling tank 721 via a hose, and the input of the other pump 722 connected to the inside of the cooling tank 721 via a hose, thereby achieving continuous flow of coolant and maximizing the cooling effect.

[0038] Working Principle: The battery pack 5 is installed inside the base 2. The liquid cooling mechanism 7 is evenly distributed on the outside of the battery pack 5 through multiple flow pipes 71, guiding the coolant to the surface of the battery pack 5. The coolant enters the liquid cooling plate 73 from the flow pipes 71. The liquid cooling plate 73 is located inside the protective cover 1, ensuring good contact between the coolant and the top of the battery pack 5. The coolant carries away the heat generated by the battery pack 5 and flows back to the circulation assembly 72 through the liquid cooling plate 73. The circulation assembly 72 includes a cooling tank 721, a pump 722, and a main distribution pipe 723. The pump 722 provides power to propel the coolant through the system and distributes the coolant to both sides of the multiple flow pipes 71 through the main distribution pipe 723. The coolant flows from the cooling tank 721 to the flow pipes 71 and then circulates to the liquid cooling plate 73 to carry away the heat from the battery pack 5. Two pumps 722 work together. The output end of one pump 722 is connected to the inside of the cooling tank 721 through a hose, and the input end of the other pump 722 is connected to the cooling tank 721 through a hose. The exhaust fan 4 is located on top of the protective cover 1 and is used to exhaust the hot air carried away by the cooling system. The protective cover 1 and the base 2 are connected by multiple fixing components 3, and the pins 302 of the protective cover 1 are inserted into the fixing holes 11 to ensure a secure connection of the protective cover 1.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A top-cooled liquid-cooled energy storage battery box, comprising a protective cover (1) and a base (2), characterized in that: The two are connected by multiple fixing components (3). A battery pack (5) is installed inside the base (2), a liquid cooling mechanism (7) is provided on the outside of the battery pack (5), and an exhaust fan (4) is installed on the top of the protective cover (1). The fixing component (3) includes an adjustment plate (301), on which two pins (302) are fixedly connected on the side of the adjustment plate (301) near the protective cover (1). A limit plate (303) is fixedly connected to the middle of the pins (302), and a spring (304) is sleeved on the outside of the pins (302).

2. The top-cooled energy storage battery box according to claim 1, characterized in that: The protective cover (1) has a sliding groove inside its side wall, the limiting plate (303) is slidably connected inside the sliding groove, and the spring (304) is located inside the sliding groove.

3. The top-cooled energy storage battery box according to claim 2, characterized in that: One end of the spring (304) is fixedly connected to the inner wall of the slide groove, and the other end of the spring (304) is fixedly connected to the outer side of the limiting plate (303).

4. A top-cooled energy storage battery box according to claim 1, characterized in that: Two fixing holes (11) are symmetrically opened on the front and rear side walls of the protective cover (1), and the pin (302) is inserted into the fixing hole (11).

5. A top-cooled energy storage battery box according to claim 1, characterized in that: The protective cover (1) is equipped with horizontal baffles (12) on both the left and right sides, and a partition (13) is fixedly connected to the inner side of the protective cover (1).

6. A top-cooled energy storage battery box according to claim 5, characterized in that: The liquid cooling mechanism (7) includes multiple flow branches (71), a circulation assembly (72), and a liquid cooling plate (73). The multiple flow branches (71) are distributed on the outside of the battery pack (5). The liquid cooling plate (73) is fixedly connected to the inside of the protective cover (1) and located directly below the partition (13). The circulation assembly (72) includes a cooling box (721). Pumps (722) and a main branch pipe (723) are provided on both sides of the cooling box (721).

7. A top-cooled energy storage battery box according to claim 6, characterized in that: The top of the battery pack (5) abuts against the bottom of the liquid cooling plate (73), the bottoms of the two main branch pipes (723) are respectively connected to the two main pipes on both sides of the multiple flow branch pipes (71), and the output end of one of the pumps (722) is connected to the inside of the cooling box (721) through a hose, and the input end of the other pump (722) is connected to the inside of the cooling box (721) through a hose.

8. A top-cooled energy storage battery box according to claim 1, characterized in that: The base (2) has multiple inner grooves on both sides, and the inner grooves are filled with absorbent silicone grease (6).

9. A top-cooled energy storage battery box according to claim 1, characterized in that: The base (2) is provided with multiple horizontal reinforcing ribs (21) and vertical reinforcing ribs (22) inside, and the two are welded together.

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