Energy storage equipment and energy storage power station

Abstract

The utility model discloses energy storage equipment and an energy storage power station. The energy storage equipment comprises a cabinet, a battery pack and a temperature adjusting part. The cabinet is provided with a containing cavity and a ventilation channel, and the air outlet end of the ventilation channel is communicated with the containing cavity; the battery pack is arranged in the accommodating cavity, the battery pack comprises a battery and a shell, a cooling immersion layer is arranged in the shell, and the battery is arranged in the shell and immersed in the cooling immersion layer; the temperature adjusting part is arranged on the cabinet, and the output end of the temperature adjusting part communicates with the air inlet end of the ventilation channel. The energy storage equipment provided by the utility model has relatively high safety performance.

Description

Technical Field

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

[0002] Currently, new energy storage technologies, primarily based on electrochemical energy storage, are growing rapidly and have become the main force in the development of the energy storage industry. Electrochemical energy storage power stations typically use ultra-large capacity lithium batteries as energy storage batteries. Due to the performance characteristics of lithium batteries, during the discharge process of energy storage devices, the energy stored in the lithium batteries will release a large amount of high-temperature flammable gas, which can lead to thermal runaway and pose a safety hazard to the system. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide an energy storage device with high safety performance.

[0004] This application also provides an energy storage power station.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] An energy storage device according to a first aspect embodiment of this application includes: a cabinet having a receiving cavity and a ventilation channel, wherein the air outlet of the ventilation channel is connected to the receiving cavity; and a battery pack disposed in the receiving cavity, the battery pack including a battery and a housing, wherein a cooling immersion layer is provided in the housing, and the battery is disposed in the housing and immersed in the cooling immersion layer.

[0007] A temperature regulator is installed on the cabinet, and the output end of the temperature regulator is connected to the air inlet end of the ventilation channel.

[0008] The energy storage device of this application has the following advantages:

[0009] In the energy storage device of this application, since the battery pack casing is provided with a cooling immersion layer and the batteries of the battery pack are immersed in the cooling immersion layer, the batteries can be cooled in real time through the cooling immersion layer. When the batteries release heat due to energy release, the cooling immersion layer can absorb the heat released by the batteries, thereby achieving the purpose of cooling the batteries, avoiding thermal runaway, and improving the safety performance of the energy storage device. At the same time, since the output end of the temperature regulating device is connected to the air inlet end of the ventilation channel, the temperature inside the cabinet can be regulated in real time through the temperature regulating device. This can further cool the battery pack and prevent the battery pack from degrading due to overcooling, thereby reducing temperature damage to the battery pack and further improving the safety performance of the energy storage device.

[0010] According to the energy storage device of the first aspect of this application, the cabinet includes a cabinet body and a first fixing member. The cabinet body is provided with the receiving cavity. The first fixing member is connected to the cavity wall of the receiving cavity, and the battery pack is disposed on the first fixing member.

[0011] According to the energy storage device of the first aspect of this application, the cabinet further includes a ventilation component, which is disposed in the receiving cavity and connected to the cavity wall. The ventilation component is provided with a ventilation channel, an air inlet and an air outlet. The air inlet and the air outlet are both connected to the ventilation channel, and the air inlet is connected to the output end of the temperature regulating component. The air outlet is connected to the receiving cavity.

[0012] According to an embodiment of the first aspect of this application, the energy storage device further includes a bidirectional inverter power supply disposed within the receiving cavity and electrically connected to the battery pack.

[0013] According to an embodiment of the first aspect of this application, the energy storage device further includes a backup power supply, which is disposed within the receiving cavity and electrically connected to the battery pack.

[0014] According to the energy storage device of the first aspect of this application, the cabinet further includes a second fixing member, which is disposed in the receiving cavity and connected to the cavity wall of the receiving cavity. The second fixing member is spaced apart from the first fixing member, and the bidirectional inverter power supply and the backup power supply are both disposed on the second fixing member.

[0015] According to an embodiment of the first aspect of this application, the energy storage device further includes a power distribution component disposed within the receiving cavity, and the battery pack is electrically connected to the power distribution component.

[0016] According to the energy storage device of the first aspect of this application, the cabinet further includes a third fixing member, which is disposed in the receiving cavity and connected to the cavity wall of the receiving cavity, and the third fixing member is spaced apart from the first fixing member, and the power distribution component is disposed on the third fixing member.

[0017] According to an embodiment of the first aspect of this application, the energy storage device further includes a controller disposed within the receiving cavity, and the battery pack, the power distribution component, the bidirectional inverter power supply, the backup power supply, and the temperature regulating component are all electrically connected to the controller.

[0018] An energy storage power station according to a second aspect of this application includes: the energy storage device described above.

[0019] The energy storage power station of this application has the following advantages:

[0020] In the energy storage power station of this application, because the energy storage device of this application has high safety performance, the energy storage power station of this application can have high operational stability and safety. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 An exploded structural diagram of the energy storage device in this application is shown;

[0023] Figure 2 A structural schematic diagram of the cabinet in this application is shown;

[0024] Figure 3 A schematic diagram of the temperature regulating component and the ventilation component in this application is shown;

[0025] Figure 4 A cross-sectional structural schematic diagram of the ventilation component in this application is shown.

[0026] Explanation of key component symbols:

[0027] 100 - Server rack; 110 - Housing cavity; 120 - Ventilation duct; 130 - Cabinet body; 140 - First fixing component; 150 - Ventilation component; 151 - Air inlet; 152 - Air outlet; 160 - Second fixing component; 170 - Third fixing component; 180 - Cabinet door;

[0028] 200-battery pack;

[0029] 300 - Temperature regulating element;

[0030] 400-Bidirectional Inverter Power Supply;

[0031] 500- Backup power supply;

[0032] 600-Power Distribution Components;

[0033] 700-Controller;

[0034] 800 - Protective shield. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] Reference Figure 1 , Figure 3 as well as Figure 4 As shown, the energy storage device involved in the embodiments of this application includes: a cabinet 100, a battery pack 200, and a temperature regulating component 300.

[0041] Specifically, the cabinet 100 is provided with a receiving cavity 110 and a ventilation channel 120, the air outlet of the ventilation channel 120 is connected to the receiving cavity 110; the battery pack 200 is disposed in the receiving cavity 110, the battery pack 200 includes a battery and a housing, the housing is provided with a cooling immersion layer, the battery is disposed in the housing and immersed in the cooling immersion layer; the temperature regulating component 300 is disposed on the cabinet 100, and the output end of the temperature regulating component 300 is connected to the air inlet of the ventilation channel 120.

[0042] In the energy storage device of this application, since the battery pack 200 has a cooling immersion layer inside its casing, and the batteries of the battery pack 200 are immersed in the cooling immersion layer, the batteries can be cooled in real time through the cooling immersion layer. When the batteries release heat due to energy release, the cooling immersion layer can absorb the heat released by the batteries, thereby achieving the purpose of cooling the batteries, avoiding thermal runaway, and improving the safety performance of the energy storage device. At the same time, since the output end of the temperature regulating component 300 is connected to the air inlet end of the ventilation channel 120, the temperature inside the cabinet 100 can be adjusted in real time through the temperature regulating component 300. This can further cool the battery pack 200 and prevent the battery pack 200 from degrading due to overcooling, thereby reducing the damage to the battery pack 200 caused by temperature and further improving the safety performance of the energy storage device.

[0043] Specifically, in this embodiment, the cooling immersion layer is filled with a cooling immersion material to absorb the heat released by the battery.

[0044] More specifically, in this embodiment, the cooling immersion material is made of a high-pressure resistant, insulating, and non-flammable composite silicone oil to improve the cooling effect on the battery.

[0045] Specifically, in this embodiment, the temperature regulating component 300 is an industrial air conditioner. The industrial air conditioner can provide environmental temperature, humidity and cleanliness guarantees during the industrial product production process or the operation of industrial process equipment, and has a highly efficient temperature regulation performance.

[0046] Reference Figure 2 As shown, the cabinet 100 includes a cabinet body 130 and a first fixing member 140. The cabinet body 130 is provided with a receiving cavity 110. The first fixing member 140 is connected to the cavity wall of the receiving cavity 110. The battery pack 200 is disposed on the first fixing member 140.

[0047] In this embodiment, since the first fixing member 140 is connected to the cavity wall of the receiving cavity 110, and the battery pack 200 is disposed on the first fixing member 140, the battery pack 200 can be fixed in the receiving cavity 110 by the first fixing member 140, thereby improving the structural stability of the battery pack 200, thereby improving the structural stability of the energy storage device and improving the safety performance of the energy storage device.

[0048] Specifically, refer to Figure 1 as well as Figure 2 As shown, in this embodiment, there are multiple battery packs 200 and multiple first fixing members 140. Any two first fixing members 140 are spaced apart, and each battery pack 200 is disposed on one first fixing member 140. This improves the energy storage capacity of the energy storage device by increasing the number of battery packs 200. At the same time, the multiple battery packs 200 can be fixed by the multiple first fixing members 140 to improve the structural stability of the multiple battery packs 200.

[0049] Specifically, refer to Figure 2 As shown, in this embodiment, the first fixing member 140 abuts against the edge of the bottom of the battery pack 200 and does not contact the middle of the bottom of the battery pack 200, so as to reduce the impact on the heat dissipation of the battery pack 200.

[0050] Reference Figure 1 , Figure 3 as well as Figure 4 As shown, the cabinet 100 also includes a ventilation component 150, which is disposed in the receiving cavity 110 and connected to the cavity wall of the receiving cavity 110. The ventilation component 150 is provided with a ventilation channel 120, an air inlet 151 and an air outlet 152. The air inlet 151 and the air outlet 152 are both connected to the ventilation channel 120, and the air inlet 151 is connected to the output end of the temperature regulating component 300, and the air outlet 152 is connected to the receiving cavity 110.

[0051] In this embodiment, the output end of the ventilation component 150 can be connected to the receiving cavity 110 through the ventilation channel 120, so that the temperature regulating component 300 can regulate the temperature inside the cabinet 130. In this process, since the air inlet 151 of the ventilation component 150 is connected to the output end of the temperature regulating component 300, and the air outlet 152 of the ventilation component 150 is connected to the receiving cavity 110, and both the air inlet 151 and the air outlet 152 of the ventilation component 150 are connected to the ventilation channel 120, the temperature regulating airflow output by the temperature regulating component 300 can enter the ventilation channel 120 through the air inlet 151, and then enter the receiving cavity 110 through the air outlet 152, so as to regulate the temperature inside the cabinet 130 in real time.

[0052] Reference Figure 1As shown, the energy storage device also includes a bidirectional inverter power supply 400, which is disposed in the housing cavity 110 and electrically connected to the battery pack 200.

[0053] In this embodiment, the bidirectional inverter power supply 400 can convert DC power to AC power. Since the bidirectional inverter power supply 400 is electrically connected to the battery pack 200, when the battery in the battery pack 200 needs to be charged, the bidirectional inverter power supply 400 can convert AC power to DC power to charge the battery in the battery pack 200. When the battery in the battery pack 200 is discharging, the bidirectional inverter power supply 400 can convert DC power to AC power to supply power to external devices.

[0054] Specifically, in this embodiment, the bidirectional inverter power supply 400 (Power Conversion System, energy storage converter) PCS can control the charging and discharging process of the battery, performing AC / DC conversion, and can directly supply power to AC loads in the absence of a power grid. The PCS consists of a DC / AC bidirectional converter, a control unit, etc. The PCS control unit receives control commands from the background via communication, and controls the bidirectional converter to charge or discharge the battery according to the sign and magnitude of the power command, thereby regulating the active and reactive power of the power grid. The PCS control unit communicates with the BMS through the CAN interface to obtain battery status information, enabling protective charging and discharging of the battery to ensure battery operation safety.

[0055] Continue to refer to Figure 1 As shown, the energy storage device also includes a backup power supply 500, which is disposed in the housing cavity 110 and electrically connected to the battery pack 200.

[0056] In this embodiment, the backup power supply 500 primarily functions to provide uninterrupted power, stabilize voltage, and filter. When power is interrupted, the backup power supply 500 outputs DC power to ensure the energy storage device remains operational without shutdown or power outages. Upon restoration of power, the backup power supply 500 stabilizes the supply voltage to ensure it remains within a safe range, protecting the energy storage device from voltage fluctuations. Furthermore, the backup power supply 500 also features filtering capabilities to suppress harmonic distortion, ensuring reliable power supply and reducing energy consumption.

[0057] Reference Figure 2 As shown, the cabinet 100 also includes a second fixing member 160, which is disposed in the receiving cavity 110 and connected to the cavity wall of the receiving cavity 110. The second fixing member 160 is spaced apart from the first fixing member 140. The bidirectional inverter power supply 400 and the backup power supply 500 are both disposed on the second fixing member 160.

[0058] In this embodiment, the bidirectional inverter power supply 400 and the backup power supply 500 can be fixed in the receiving cavity 110 by the second fastener 160, so as to improve the stability of the electrical connection between the bidirectional inverter power supply 400 and the backup power supply 500 and the battery pack 200, thereby improving the operational stability of the energy storage device and improving the safety performance of the energy storage device.

[0059] Reference Figure 1 As shown, the energy storage device also includes a power distribution component 600, which is disposed within the receiving cavity 110, and the battery pack 200 is electrically connected to the power distribution component 600.

[0060] Specifically, in this embodiment, the power distribution unit 600 is a high-voltage distribution box. The high-voltage distribution box is responsible for connecting the battery pack 200 to the external power system to realize the input and output of electrical energy. It can receive electrical energy from the power grid or renewable energy generation system and store it in the battery pack 200. At the same time, it can also transmit the electrical energy in the battery pack 200 back to the power grid or supply it to the load. By distributing electrical energy, it ensures that the energy storage device can operate normally. In addition, the high-voltage distribution box includes a high-voltage controller 700 fuses, pre-charging circuits, relays, circuit breakers, etc., which can have a variety of protection functions, including overcurrent protection, overvoltage protection, undervoltage protection, short circuit protection, etc. When abnormal current or voltage occurs in the energy storage device, it can cut off the circuit in time to protect the safety of the energy storage system and other electrical equipment. In addition, it is also equipped with lightning protection, grounding protection and other devices to prevent external factors from damaging the energy storage device.

[0061] In this embodiment, the power distribution unit 600 can distribute the electrical energy of the battery pack 200 to the load for use, thereby achieving reasonable energy distribution.

[0062] Reference Figure 2 As shown, the cabinet 100 also includes a third fixing member 170, which is disposed in the receiving cavity 110 and connected to the cavity wall of the receiving cavity 110. The third fixing member 170 is spaced apart from the first fixing member 140, and the power distribution component 600 is disposed on the third fixing member 170.

[0063] Specifically, in this embodiment, the third fixing member 170 is spaced apart from the first fixing member 140 and the second fixing member 160 to define the placement space for the power distribution component 600.

[0064] In this embodiment, the battery pack 200 can be fixed in the receiving cavity 110 by the third fixing member 170, so as to improve the stability of the electrical connection between the power distribution component 600 and the battery pack 200, thereby improving the operational stability of the energy storage device and the safety performance of the energy storage device.

[0065] Reference Figure 1As shown, the energy storage device also includes a controller 700, which is disposed in the housing cavity 110. The battery pack 200, power distribution unit 600, bidirectional inverter power supply 400, backup power supply 500 and temperature regulation unit 300 are all electrically connected to the controller 700.

[0066] In this embodiment, since the battery pack 200, power distribution unit 600, bidirectional inverter power supply 400 and backup power supply 500 are all electrically connected to the controller 700, the controller 700 can monitor and control the charging and discharging process of the battery, adjust the charging and discharging power of the battery according to the battery's operating state, and control the output temperature of the temperature regulating unit 300 so that the temperature inside the containment cavity 110 can adapt to the battery's operating state, thereby improving the safety performance of the energy storage device.

[0067] Specifically, refer to Figure 1 As shown, in this embodiment, the cabinet 100 also includes a cabinet door 180, which is connected to the cabinet body 130 and covers the outside of the receiving cavity 110. The controller 700 is located on the side of the cabinet door 180 near the receiving cavity 110 to facilitate the maintenance and repair of the various components housed in the cabinet body 130. At the same time, it facilitates the electrical connection of the battery pack 200, power distribution component 600, bidirectional inverter power supply 400, backup power supply 500, and temperature regulation component 300 to the controller 700.

[0068] Specifically, refer to Figure 1 As shown, in this embodiment, the energy storage device of this application also includes a display screen, buttons, indicator lights, and a protective cover 800, so that the operator can monitor the internal working status of the energy storage device in real time through the display screen and indicator lights, and at the same time, the operator can control the operation of the energy storage device through the buttons. Furthermore, the protective cover can protect the display screen, buttons, indicator lights, and wiring harnesses, thereby improving the aesthetics of the energy storage device.

[0069] The energy storage power station involved in the embodiments of this application includes the above-mentioned energy storage equipment.

[0070] In the energy storage power station of this application, because the energy storage device of this application has high safety performance, the energy storage power station of this application can have high operational stability and safety.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An energy storage device, characterized in that, include: The cabinet is provided with a housing cavity and a ventilation channel, and the air outlet of the ventilation channel is connected to the housing cavity; A battery pack is disposed within the receiving cavity. The battery pack includes a battery and a housing. A cooling immersion layer is provided inside the housing. The battery is disposed inside the housing and immersed in the cooling immersion layer. A temperature regulator is installed on the cabinet, and the output end of the temperature regulator is connected to the air inlet end of the ventilation channel.

2. The energy storage device according to claim 1, characterized in that, The cabinet includes a cabinet body and a first fixing member. The cabinet body is provided with the receiving cavity. The first fixing member is connected to the cavity wall of the receiving cavity. The battery pack is disposed on the first fixing member.

3. The energy storage device according to claim 2, characterized in that, The cabinet also includes a ventilation component, which is disposed in the receiving cavity and connected to the cavity wall. The ventilation component has a ventilation channel, an air inlet and an air outlet. The air inlet and the air outlet are both connected to the ventilation channel, and the air inlet is connected to the output end of the temperature regulating component. The air outlet is connected to the receiving cavity.

4. The energy storage device according to claim 2, characterized in that, The energy storage device also includes a bidirectional inverter power supply, which is disposed within the receiving cavity and electrically connected to the battery pack.

5. The energy storage device according to claim 4, characterized in that, The energy storage device also includes a backup power supply, which is disposed within the housing cavity and electrically connected to the battery pack.

6. The energy storage device according to claim 5, characterized in that, The cabinet also includes a second fixing member, which is disposed in the receiving cavity and connected to the cavity wall. The second fixing member is spaced apart from the first fixing member. The bidirectional inverter power supply and the backup power supply are both disposed on the second fixing member.

7. The energy storage device according to claim 5, characterized in that, The energy storage device also includes a power distribution component, which is disposed within the receiving cavity, and the battery pack is electrically connected to the power distribution component.

8. The energy storage device according to claim 7, characterized in that, The cabinet also includes a third fixing member, which is disposed in the receiving cavity and connected to the cavity wall. The third fixing member is spaced apart from the first fixing member, and the power distribution component is disposed on the third fixing member.

9. The energy storage device according to claim 7, characterized in that, The energy storage device also includes a controller, which is disposed within the housing cavity. The battery pack, the power distribution unit, the bidirectional inverter power supply, the backup power supply, and the temperature regulation unit are all electrically connected to the controller.

10. An energy storage power station, characterized in that, include: The energy storage device as described in any one of claims 1-9.

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