Power storage device

Abstract

The utility model relates to the field of electric energy device, concretely relates to a kind of electric power energy storage device.The electric power energy storage device includes prefabricated cabin, and the prefabricated cabin is equipped with: energy storage equipment, the energy storage equipment includes blade cell cluster, and the blade cell cluster is used to store electric energy and / or discharge;Heat management equipment, the heat management equipment is connected with the energy storage equipment by air duct, for keeping the working temperature of the energy storage equipment;Electrical equipment, the electrical equipment connects the energy storage equipment, for charging and / or making the energy storage equipment discharge of the energy storage equipment.The electric power energy storage device of the utility model has higher energy density and the integrated degree of blade cell cluster, can efficiently operate, and has longer service life.

Description

Technical Field

[0001] This utility model relates to the field of electrical energy devices, specifically to an electric energy storage device. Background Technology

[0002] Against the backdrop of continuously rising global energy demand and the accelerated promotion and application of renewable energy, power storage devices, as a key support in the storage and distribution of power resources, are becoming increasingly important. However, existing battery power storage devices suffer from low energy density and short service life.

[0003] Furthermore, a significant amount of heat is generated during charging and discharging, causing the temperature of the battery energy storage device to rise sharply, which severely impacts its performance, lifespan, and safety. While existing air-cooling devices are simple in structure and inexpensive, their heat dissipation capacity is severely insufficient to handle the high heat generated by high-power battery energy storage devices, making it difficult to meet practical application requirements. Utility Model Content

[0004] In view of this, the present invention provides an electric energy storage device, thereby solving or at least alleviating at least one of the above-mentioned problems and other problems existing in the prior art.

[0005] To achieve the aforementioned objectives, this utility model provides an energy storage device, which includes a prefabricated cabin, and the prefabricated cabin is equipped with:

[0006] An energy storage device, the energy storage device comprising blade battery clusters, the blade battery clusters being used to store electrical energy and / or discharge it;

[0007] A thermal management device, which is connected to the energy storage device via an air duct, is used to maintain the operating temperature of the energy storage device;

[0008] An electrical device connected to the energy storage device for charging the energy storage device and / or discharging the energy storage device.

[0009] In the power storage device described above, optionally, a plurality of blade battery clusters are evenly arranged along the side walls of both sides of the prefabricated cabin, and the side walls of the prefabricated cabin are provided with doors corresponding one-to-one with the blade battery clusters.

[0010] In the aforementioned power storage device, optionally, the blade battery cluster includes a plurality of battery modules stacked sequentially, the battery modules being electrically connected sequentially, and the battery module including a battery pack formed by stacking a plurality of blade batteries and a heat dissipation component located on the bottom surface of the battery pack.

[0011] In the power storage device described above, the heat dissipation component may optionally include a heat dissipation plate 31 and a porous flow channel disposed on the heat dissipation plate.

[0012] In the power storage device described above, optionally, the cross-section of the porous flow channel is triangular and / or trapezoidal.

[0013] In the power storage device described above, optionally, the porous flow channel is provided with heat-conducting fins, and the heat-conducting fins correspond one-to-one with each of the blade batteries.

[0014] In the aforementioned power storage device, optionally, the air duct includes an air inlet channel, a diversion channel and a heat dissipation channel disposed between two adjacent battery clusters, and an air outlet channel. The diversion channel connects the air inlet channel to the heat dissipation component of the battery cluster, and the heat dissipation channel connects the heat dissipation component to the air outlet channel.

[0015] In the aforementioned power storage device, optionally, the air inlet channel is arranged across the top of the multiple blade battery clusters along the top of the prefabricated cabin, and the air outlet channel is arranged across the bottom of the multiple blade battery clusters along the bottom of the prefabricated cabin.

[0016] In the aforementioned power storage device, optionally, the thermal management equipment includes an air conditioner having an air inlet communicating with the air inlet channel and a return air outlet communicating with the air outlet channel.

[0017] In the aforementioned power storage device, optionally, the thermal management equipment further includes an air inlet grid and an air outlet grid disposed on the side wall of the prefabricated cabin, wherein the air inlet grid is connected to the air inlet and the air outlet grid is connected to the return air outlet.

[0018] The energy storage device of this invention includes a prefabricated cabin, within which an energy storage device and a thermal management device connected to the energy storage device via an air duct are housed. The thermal management device is used to maintain the operating temperature of the energy storage device. The energy storage device includes blade battery clusters, which have high energy density and integration, enabling efficient operation and a long service life. Attached Figure Description

[0019] The disclosure of this utility model will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0020] Figure 1 This is a perspective view of one side of an embodiment of the power storage device of this utility model.

[0021] Figure 2 for Figure 1A perspective view of another side of an embodiment of an electric energy storage device.

[0022] Figure 3 for Figure 1 An internal schematic diagram of the top wall of a prefabricated cabin in an embodiment of an electric energy storage device.

[0023] Figure 4 for Figure 1 A three-dimensional schematic diagram of a battery cluster of an embodiment of an electric energy storage device.

[0024] Figure 5 for Figure 4 A three-dimensional schematic diagram of a battery cluster of an embodiment of an electric energy storage device.

[0025] Figure 6 for Figure 5 A partial cross-sectional schematic diagram of the heat dissipation component of the battery pack of an embodiment of an electric energy storage device.

[0026] Figure 7 for Figure 4 A schematic diagram of the airflow direction of an embodiment of an electric energy storage device.

[0027] Figure 8 for Figure 1 An internal schematic diagram of the first side wall of the prefabricated cabin of an embodiment of an electric energy storage device.

[0028] Reference numerals: 1-Prefabricated cabin; 11-First sidewall; 12-Second sidewall; 13-Third sidewall; 14-Fourth sidewall; 15-Top wall; 16-Bottom wall; 17-Door; 18-Explosion relief plate; 2-Energy storage compartment; 21-Energy storage equipment; 22-Blade battery cluster; 23-Battery module; 24-Blade battery; 25-Terminal post; 26-Slave control; 27-Circuit board; 28-Battery pack; 3-Heat dissipation assembly; 31-Heat dissipation plate; 32-Heat conductive fins; 33-Porous flow channel; 4-Air duct; 41-Air inlet channel; 42-Heat dissipation channel; 43-Air outlet channel; 44-Diversion channel; 5-Thermal management compartment; 51-Thermal management equipment; 52-Air conditioner; 53-Air inlet grille; 54-Air outlet grille; 6-Electrical compartment; 61-Electrical equipment. Detailed Implementation

[0029] Referring to the accompanying drawings and specific embodiments, the structure, composition, features, and advantages of the power energy storage device of this utility model will be described below by way of example; however, all descriptions should not be construed as limiting the present utility model in any way.

[0030] Furthermore, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the various drawings, the present invention still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacle. Therefore, these further embodiments according to the present invention should also be considered within the scope of the description herein.

[0031] It should also be noted that the terms “inner,” “outer,” “top,” “bottom,” “left,” “right,” “upper,” and “lower,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship of the components of the power storage device shown in the accompanying drawings. They are only for the convenience of describing this disclosure 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 disclosure.

[0032] Furthermore, the terms "first," "second," "third," and "fourth" 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 with "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0033] In the description of this disclosure, "multiple" means at least two, such as two, three or more, unless otherwise expressly and specifically limited.

[0034] from Figures 1 to 3 As can be seen, the power storage device of this utility model includes a prefabricated cabin 1, an energy storage device 21 installed inside the prefabricated cabin 1, a thermal management device 51 connected to the energy storage device 21 through an air duct 4, and an electrical device 61 connected to the energy storage device 21.

[0035] The energy storage device 21 includes multiple blade battery clusters 22 connected in parallel or series for storing and discharging electrical energy, i.e., providing power to external devices. The thermal management device 51 is used to maintain the operating temperature of the energy storage device 21, and the electrical device 61 is used to charge the energy storage device 21 and / or draw the electrical energy of the energy storage device 21 to the outside.

[0036] Specifically, as shown in the figure, the prefabricated cabin 1 includes a first side wall 11, a second side wall 12, and a third side wall 13 connected in sequence (e.g., ...). Figure 2 As shown), the fourth sidewall 14 (as shown) Figure 3 As shown), and top wall 15 and bottom wall 16 (as shown) Figure 7 (As shown). The first sidewall 11 is arranged opposite to the third sidewall 13, the second sidewall 12 is arranged opposite to the fourth sidewall, and the second sidewall 12 and the fourth sidewall 14 have the same shape and structure. The top wall 15 is arranged opposite to the bottom wall 16.

[0037] exist Figure 1 and Figure 2 In the embodiments, the prefabricated cabin 1 can be a container. Using a container as the prefabricated cabin 1 for the power storage device can increase the robustness and sealing of the prefabricated cabin 1, as well as facilitate the movement of the prefabricated cabin 1.

[0038] like Figure 3 As shown, the space enclosed by the first sidewall 11, the second sidewall 12, the third sidewall 13, the fourth sidewall 14, the top wall 15, and the bottom wall 16 includes an energy storage compartment 2, a thermal management compartment 5, and an electrical compartment 6. Figure 3 In this embodiment, the thermal management compartment 5 is located near the first side wall 11 and is used to house the thermal management device 51; the energy storage compartment 2 is located adjacent to the thermal management compartment 5 and is used to house the energy storage device 21; the electrical compartment 6 is located adjacent to the energy storage compartment 2 and near the third side wall 13, and is used to house the electrical device 61.

[0039] Thermal management equipment 51 includes an air conditioner 52, and an air inlet grille 53 and an air outlet grille 54 (such as air inlet grille 53 and air outlet grille 54) disposed on the first side wall 11. Figure 1 (As shown). Specifically, the air conditioner 52 has an air inlet and a return air outlet (not shown in the figure). The air inlet is connected to the air inlet grille 53, that is, the air inlet introduces external air into its interior through the air inlet grille 53; the return air outlet is connected to the air outlet grille 54, that is, the return air outlet leads the high-temperature air that has been heat-exchanged inside the power storage device to the outside for heat dissipation.

[0040] In the embodiment shown in the figure, the air conditioner 52 is located at one end of the prefabricated cabin 1 near the first side wall 11. In other alternative embodiments, the air conditioner 52 can also be located on the side near the third side wall 14. The air conditioner 52 is used to inject cold or hot gas into the air duct 4.

[0041] from Figure 3 As can be seen from the embodiments, the energy storage device 21 includes multiple blade battery clusters 22 connected in parallel or series, and the multiple blade battery clusters 22 are evenly arranged in the energy storage compartment 2. Figure 3 In one embodiment, multiple blade battery clusters 22 are arranged in two rows, one row along the second sidewall 12 and the other row along the fourth sidewall 14.

[0042] Furthermore, both the second sidewall 12 and the fourth sidewall 14 are provided with multiple hatches 17 (such as...). Figure 1 and Figure 2 As shown in the figure, the hatch 17 corresponds one-to-one with the blade battery cluster 22, that is, by opening the hatch 17, the corresponding blade battery cluster 22 can be installed, replaced, adjusted, and repaired.

[0043] Optionally, a hatch 17 may also be provided at the second side wall 12 of the thermal management compartment 5 to facilitate operation by staff from the outside.

[0044] Furthermore, a hatch 17 can also be provided at the third sidewall 13 (e.g. Figure 2 As shown), the hatch 17 here corresponds to the electrical compartment 6. The hatch 17 can be equipped with a corresponding lead wire panel, etc. The setting of the hatch 17 here can facilitate the staff to install, debug, and repair the electrical equipment 61 in the electrical compartment 6.

[0045] It should be noted that multiple blade battery clusters 22, such as Figure 3 and Figure 7 The concentrated and dense arrangement of these cells utilizes blade battery clustering technology. Specifically, such as... Figure 4 As shown, the blade battery cluster 22 includes multiple battery modules 23 stacked sequentially.

[0046] Combination Figure 5 As can be seen, the battery module 23 includes a battery pack 28, terminal posts 25 and slave controller 26 located on the end face of the battery pack 28, circuit boards 27 located on both sides of the battery pack 28, and heat dissipation components 3 located on the bottom surface of the battery pack 28. Multiple battery modules 23 are arranged and stacked in sequence, and the terminal posts 25 of two adjacent battery modules 23 are electrically connected to each other through cables to integrate battery clusters 22.

[0047] The battery pack 28 is formed by stacking multiple blade batteries 24 in sequence. The circuit board 27 is connected to each blade battery 24 and to the slave controller 26. The circuit board 27 is used to send the monitored operating status of the blade batteries 24 to the slave controller 26 for processing.

[0048] Optionally, the blade battery 24 can be a sodium-ion blade battery. The operating temperature range of the blade sodium-ion battery is -20℃ to 60℃, which can adapt to more complex application environments. In addition, during the charging and discharging process, the heat generated inside the blade sodium-ion battery is uniform and slow, and it is not easy to have local overheating, which greatly reduces the risk of thermal runaway and improves the safety of the battery during use.

[0049] In other alternative embodiments, the blade battery 24 may also be of the type, but is not limited to, a lithium-ion blade battery.

[0050] To improve the heat dissipation of the battery module 23 within a limited space, combined with, for example Figure 6 As shown, the heat dissipation component 3 may include a heat dissipation plate 31 and a porous flow channel 33 disposed on the heat dissipation plate 31. The porous flow channel 33 increases the heat dissipation area of ​​the battery pack 28, thereby effectively improving the heat dissipation efficiency of the battery module 23.

[0051] exist Figure 6In the embodiments, the cross-section of the porous channel 33 is triangular and / or trapezoidal. The geometry of the triangular or right-angled trapezoidal channel can increase the contact area between the gas flowing inside and the blade battery 24, thereby improving the heat exchange efficiency and generating more turbulence, reducing the influence of the laminar boundary layer, and enabling faster heat transfer.

[0052] Furthermore, to accelerate the heat dissipation efficiency of the battery module 23, multiple heat-conducting fins 32 can be provided on the porous flow channel 33. Each heat-conducting fin 32 corresponds to one of the blade batteries 24 in the battery pack 28, and is used to transfer the heat of each blade battery 24 to the porous flow channel 33. Optionally, the heat-conducting fins 32 are made of a high thermal conductivity material, which may include, but is not limited to, aluminum, aluminum alloy, copper, etc.

[0053] Optionally, in Figure 6 In this embodiment, the heat-conducting fins 32 are frame structures that connect the blade battery 24 and the porous flow channel 33, which can maximize the heat dissipation area and improve heat dissipation efficiency.

[0054] It should be noted that the air inlet and outlet sides (not shown in the figure) of the heat dissipation component 3 are located on both sides, that is, on both sides of the battery module 23. When multiple battery modules 23 are integrated into blade battery clusters 22, the two sides are the air inlet and outlet sides of the blade battery clusters 22, respectively. Moreover, fans (not shown in the figure) are provided on both sides of the blade battery clusters 22 to guide gas from the air inlet side into the heat dissipation component 3 to absorb heat and then exhaust it from the air outlet side (e.g., ...). Figure 8 (As indicated by the arrows from left to right).

[0055] Furthermore, the fan speed can be intelligently adjusted based on real-time changes in battery temperature. When the temperature of battery module 23 rises, the fan speed will automatically increase to enhance heat dissipation airflow and quickly lower the temperature of battery module 23; when the temperature of battery module 23 decreases, the fan speed will decrease accordingly, effectively reducing energy consumption and achieving a balance between energy saving and efficient heat dissipation.

[0056] It is understood that the air inlet side and air outlet side of the heat dissipation component 3 are connected to the air duct 4 respectively. The lower temperature gas in the air inlet side air duct 4 is introduced into the battery module 23 to absorb heat, and then the gas carrying heat is discharged to the air outlet side air duct 4.

[0057] Specifically, in combination Figure 7 and Figure 8 As can be seen, the air duct 4 includes an air inlet duct 41 located at the top of the blade battery cluster 22 and along the top wall 15, a diversion duct 44 and a heat dissipation duct 42 located between two adjacent blade battery clusters 22, and an air outlet duct 43 located along the bottom wall 16. The air inlet duct 41 connects to the air inlet of the air conditioner 52, and the air outlet duct 43 connects to the return air inlet of the air conditioner 52.

[0058] As shown in the figure, the air inlet channel 41 spans the top of multiple blade battery clusters 22 arranged side by side, and the diversion channel 44 is provided with a diversion structure to connect the air inlet channel 41 to the air inlet side of the heat dissipation component 3 of each layer of the battery module 23 of the blade battery cluster 22. The air outlet channel 43 is located at the bottom of the multiple blade battery clusters 22 arranged side by side, and the heat dissipation channel 42 connects the air outlet side of each layer of heat dissipation component 3 to the air outlet channel 43.

[0059] Specifically, each blade battery cluster 22 in the figure has a diversion channel 44 on the left side and a heat dissipation channel 42 on the right side.

[0060] Furthermore, the inner wall of the air duct 4 can be made of sheet metal, which can effectively reduce the resistance of gas during the flow process, thereby increasing the gas flow speed and improving heat dissipation efficiency.

[0061] Furthermore, to ensure the safety of the power storage device, an explosion relief plate 18 can be installed at the location corresponding to the energy storage compartment 2 on the top wall 14 (e.g., Figure 1 and Figure 2 (As shown), to prevent the shock waves and debris generated by the power storage device due to excessive internal pressure from causing injury to personnel and equipment.

[0062] The heat exchange process of the power energy storage device of this utility model is combined with Figure 1 and Figure 8 As shown, during heat dissipation, the air inlet of the air conditioner 52 introduces cooler external air through the air inlet grille 53, such as... Figure 8 As indicated by the upward arrow, the gas flows towards the top wall 15, enters the air intake channel 41, and flows to the top of each row of battery clusters 22.

[0063] The diversion channel 44 introduces gas from the air inlet channel 41, as shown by the downward arrow in the figure. The gas flows towards the bottom wall 16. During the flow, it passes through the diversion structure of the diversion channel 44 and the suction force of the fan on the air inlet side of the heat dissipation component 3 of the blade battery cluster 22, as shown by the arrows from left to right in the figure. This absorbs the heat from the heat dissipation component 3 of each battery module 23. The gas, carrying the absorbed heat, is discharged to the heat dissipation channel 42 on the other side. The gas carrying heat flows towards the air outlet channel 43 within the heat dissipation channel 42, as shown by the downward arrow in the figure.

[0064] As shown by the arrows from right to left in the figure, the air carrying heat enters the return air vent of the air conditioner 52 through the air outlet duct 43 and is discharged to the outside from the air outlet grille 54, thereby completing the heat dissipation of the power storage device.

[0065] It is understandable that when the blade battery cluster 22 is at a low temperature, the aforementioned heat exchange process can be used to introduce hotter gas, thereby raising the temperature of the blade battery cluster 22, and expelling the cooler gas after heat exchange to the outside, thus ensuring the operating temperature of the blade battery cluster 22.

[0066] The power storage device of this utility model includes an energy storage device 21 and a thermal management device 51 for dissipating heat from the energy storage device 21. The energy storage device 21 integrates multiple blade batteries 24 into a battery module 23, and integrates multiple battery modules 23 into a blade battery cluster 22. The integrated blade battery cluster 22 has a concentrated structure and high energy density and integration, and can operate efficiently.

[0067] Furthermore, the battery module 23 is also equipped with a heat dissipation component 3 connected to the thermal management device 51 through the air duct 4. Gas is introduced by the thermal management device 51 and enters each layer of the battery module 23 of the blade battery cluster 22 from the top of the blade battery cluster 22 through the diversion structure of the air duct 4 for heat exchange, and is concentratedly output from the bottom of the blade battery cluster 22 to the thermal management device 51 and discharged to the outside.

[0068] The power storage device of this utility model also includes a prefabricated cabin 1, an energy storage device 21 and a thermal management device 51 housed inside it. The side wall of the prefabricated cabin 1 is provided with a door 17 corresponding to the energy storage device 21 and the thermal management device 51, so as to facilitate the operation of the corresponding energy storage device 21 or thermal management device 51 by the staff from the outside.

[0069] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. An electric energy storage device, characterized in that, The power storage device includes a prefabricated cabin (1), and the prefabricated cabin (1) contains: An energy storage device (21) comprising a blade battery cluster (22) for storing and / or discharging electrical energy; Thermal management device (5), which is connected to the energy storage device (21) through air duct (4) to maintain the operating temperature of the energy storage device (21); An electrical device (61) is connected to the energy storage device (21) for charging the energy storage device (21) and / or discharging the energy storage device (21).

2. The power storage device as described in claim 1, characterized in that, Multiple blade battery clusters (22) are evenly arranged along the side walls of the prefabricated cabin (1) on both sides, and the side walls of the prefabricated cabin (1) are provided with cabin doors (17) corresponding to the blade battery clusters (22).

3. The power storage device as described in claim 1, characterized in that, The blade battery cluster (22) includes multiple battery modules (23) stacked sequentially. The battery modules (23) are electrically connected sequentially. The battery module (23) includes a battery pack (28) formed by stacking multiple blade batteries (24) and a heat dissipation component (3) located on the bottom surface of the battery pack (28).

4. The power storage device as described in claim 3, characterized in that, The heat dissipation component (3) includes a heat dissipation plate (31) and a porous flow channel (33) disposed on the heat dissipation plate (31).

5. The power storage device as described in claim 4, characterized in that, The cross-section of the porous channel (33) is triangular and / or trapezoidal.

6. The power storage device as described in claim 4, characterized in that, The porous flow channel (33) is provided with heat-conducting fins (32), and the heat-conducting fins (32) correspond one-to-one with each of the blade batteries (24).

7. The power storage device as described in claim 3, characterized in that, The air duct (4) includes an air inlet duct (41), a diversion duct (44) and a heat dissipation duct (42) located between two adjacent battery clusters, and an air outlet duct (43). The diversion duct (44) connects the air inlet duct (41) to the heat dissipation component (3) of the battery cluster, and the heat dissipation duct (42) connects the heat dissipation component (3) to the air outlet duct (43).

8. The power storage device as described in claim 7, characterized in that, The air inlet channel (41) is arranged along the top of the prefabricated cabin (1) across the top of the multiple blade battery clusters (22), and the air outlet channel (43) is arranged along the bottom of the prefabricated cabin (1) across the bottom of the multiple blade battery clusters (22).

9. The power storage device as described in claim 7, characterized in that, The thermal management device (5) includes an air conditioner (52) having an air inlet connected to the air inlet channel (41) and a return air outlet connected to the air outlet channel (43).

10. The power storage device as described in claim 9, characterized in that, The thermal management device (5) further includes an air inlet grille (53) and an air outlet grille (54) located on the side wall of the prefabricated cabin (1). The air inlet grille (53) is connected to the air inlet, and the air outlet grille (54) is connected to the return air outlet.

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