Energy storage cabinet, testing equipment, and testing methods for energy storage cabinet

Abstract

An energy storage cabinet, a testing device, and a testing method for the energy storage cabinet are disclosed. The energy storage cabinet includes a cabinet body, battery cells, an elastic element, a first magnetic element, and a second magnetic element. The battery cells are disposed within the cabinet body and suspended from the top wall of the cabinet body by the elastic element. The first magnetic element is disposed on the inner wall of the cabinet body, and the second magnetic element is disposed on the battery cells. The first and second magnetic elements have oppositely arranged magnetic poles in the same direction. Through the above technical solution, the energy storage cabinet with battery cells in this application can reduce the vertical vibration amplitude of the battery cells through the deformation capability of the elastic element. The repulsive force generated by the two magnetic elements can prevent the battery cells from colliding with the cabinet body when swinging or tilting, and also reduce the vibration amplitude of the battery cells. The design of the elastic element and the magnetic element is not affected by multi-directional and irregular vibrations, ensuring that the energy storage cabinet can be applied in complex scenarios such as at sea.

Description

Technical Field

[0001] This disclosure relates to the field of energy storage, and more specifically, to an energy storage cabinet, a testing device, and a testing method for the energy storage cabinet. Background Technology

[0002] Energy storage cabinets are commonly used in backup power, providing new energy grid connection capabilities, and grid frequency regulation. They typically house battery packs for storing and releasing electrical energy. When energy storage cabinets are used on offshore platforms, the platforms are affected by wind and waves, causing the cabinets to vibrate. To prevent damage to the battery packs due to vibration, vibration damping structures are required inside the cabinets.

[0003] In related technologies, existing vibration damping structures typically only address vibrations in a single direction or at a specific frequency. However, for energy storage cabinets installed on offshore platforms, the vibrations are multidirectional. Existing vibration damping structures are insufficient to cope with the multidirectional vibrations of energy storage cabinets in the offshore environment, and the battery packs may still be damaged by vibration. Summary of the Invention

[0004] The purpose of this disclosure is to provide an energy storage cabinet, a testing device, and a testing method for the energy storage cabinet, so as to at least partially solve the problems existing in the related art.

[0005] This disclosure provides an energy storage cabinet, the energy storage cabinet comprising: cabinet, and The battery unit is housed within the cabinet and suspended from the top wall of the cabinet by elastic elements; The energy storage cabinet further includes a first magnetic component and a second magnetic component. The first magnetic component is disposed on the inner wall of the cabinet, and the second magnetic component is disposed on the battery unit. The first magnetic component and the second magnetic component have oppositely arranged magnetic poles in the same direction.

[0006] In some possible implementations, the battery cells are multiple and are arranged at intervals in the vertical direction, with adjacent battery cells connected by multiple elastic elements.

[0007] In some possible implementations, the energy storage cabinet includes a resilient base disposed below and connected to the cabinet body.

[0008] In some possible implementations, the energy storage cabinet includes a first temperature regulating structure and a photovoltaic panel, wherein the first temperature regulating structure is disposed on the cabinet body and communicates with the interior of the cabinet body. The photovoltaic panel is installed outside the cabinet and is used to supply energy to the first temperature regulation structure.

[0009] This disclosure also provides a testing apparatus for use with any of the above-described energy storage cabinets, the testing apparatus comprising a testing chamber and a component disposed within the testing chamber: The vibration unit includes a first vibration table and a second vibration table mounted on the first vibration table. The first vibration table is movably mounted vertically, and the second vibration table is movably mounted on the first vibration table horizontally. The second vibration table is used to fix the energy storage cabinet. The detection element is used to acquire displacement information of the energy storage cabinet and the battery unit, as well as acceleration information of the second vibration table and the battery unit.

[0010] In some possible implementations, the detection element includes an acceleration sensor, a displacement sensor, and a strain gauge. The acceleration sensor is respectively disposed on the second vibration table and the battery unit, the displacement sensor is respectively disposed on the cabinet and the battery unit, and the strain gauge is disposed on the cabinet.

[0011] In some possible implementations, the testing apparatus includes components respectively disposed within the testing chamber: The salt spray unit includes an atomizing nozzle and a circulating fan. The atomizing nozzle is used to spray salt spray, and the circulating fan is used to promote gas flow in the test chamber. Simulated sunlight lamps; A second temperature regulation structure is used to raise and / or lower the temperature inside the test chamber.

[0012] In some possible implementations, the first vibration table is provided with a horizontally extending linear guide rail, the second vibration table is movably connected to the linear guide rail, the vibration unit includes a first driving member, the first driving member has a first rod that is parallel to the linear guide rail and can reciprocate, the first driving member is disposed on the first vibration table and the first rod is connected to the second vibration table.

[0013] In some possible implementations, the vibration unit includes a plurality of independently controllable second driving members, which are disposed below the first vibration table. Each second driving member has a second rod capable of reciprocating in a vertical direction. The second rod is connected to the second vibration table, and the second driving member is used to drive the second vibration table to shake.

[0014] This disclosure also provides a testing method for an energy storage cabinet, the testing method being applied to the testing apparatus described in any one of the above-mentioned methods, the testing method comprising: The vibration unit is controlled to simulate the different operating conditions of the energy storage cabinet. The detection element is controlled to acquire displacement information of the energy storage cabinet and the battery unit under different operating conditions, as well as acceleration information of the second vibration table and the battery unit; The energy storage cabinet is evaluated based on the displacement information and the acceleration information.

[0015] In some possible implementations, the step of controlling the detection element to acquire displacement information of the energy storage cabinet and the battery cell under different operating conditions, as well as acceleration information of the second vibration table and the battery cell, includes: The detection element is controlled to acquire the acceleration values ​​of the second vibration table and the battery unit at each first time interval; and to acquire the displacement values ​​of the energy storage cabinet and the battery unit at each first time interval.

[0016] In some possible implementations, the step of evaluating the energy storage cabinet based on the displacement information and the acceleration information includes: When the vibration transmissibility TR < 1 and the dynamic displacement difference S is greater than or equal to a preset value, the vibration reduction effect of the energy storage cabinet meets the usage conditions of the corresponding operating condition. The vibration transmissibility TR satisfies: TR=A1 / A2, where A1 is the square root mean square of the acceleration of the battery cell and A2 is the square root mean square of the acceleration of the second vibration table; the dynamic displacement difference S satisfies: S=S1-S2, where S1 is the displacement range of the energy storage cabinet and S2 is the displacement range of the battery cell.

[0017] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: Through the above technical solutions, the energy storage cabinet with battery units in this application can reduce the vertical vibration amplitude of the battery units through the deformation capability of the elastic components. The repulsive force generated by the two magnetic components can prevent collisions between the battery units and the cabinet when swinging or tilting, and also reduce the vibration amplitude of the battery units. Furthermore, the design of the elastic and magnetic components is unaffected by multi-directional or irregular vibrations, ensuring the vibration reduction effect on the battery units and guaranteeing that the energy storage cabinet can be applied in complex scenarios such as at sea.

[0018] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings: Figure 1This is a schematic diagram of the energy storage cabinet disclosed in the embodiments of this application; Figure 2 This is a front view of the energy storage cabinet disclosed in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the testing device disclosed in the embodiments of this application; Figure 4 yes Figure 3 Enlarged view of section A; Figure 5 This is a flowchart of a testing method disclosed in an embodiment of this application; Figure 6 This is another flowchart of the testing method disclosed in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures 100-Energy storage cabinet, 101-Cabinet body, 102-Battery unit, 103-Elastic component, 104-First magnetic component, 105-Second magnetic component, 106-Elastic base, 107-First temperature regulation structure, 108-Photovoltaic panel, 109-First reinforcing beam, 110-Second reinforcing beam, 200-Testing device, 201-Test chamber, 202-Vibration unit, 2021-First vibration table, 2022-Second vibration table, 2023-Linear guide rail, 2024-First driving component, 203-Acceleration sensor, 204-Displacement sensor, 205-Strain gauge, 206-Salt spray unit, 2061-Atomizing nozzle, 2062-Circulating fan, 207-Sunlight simulation lamp, 208-Second temperature regulation structure. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0022] In this application, the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] Furthermore, the terms "installation," "setup," "equipped with," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0025] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components whose specific types and structures may be the same or different, and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0026] Energy storage cabinets typically contain battery packs for storing and releasing electrical energy. Taking the application of energy storage cabinets on offshore platforms as an example, the offshore platforms will sway due to the influence of wind and waves, and the swaying of the offshore platforms will cause the energy storage cabinets to vibrate.

[0027] The vibration of the energy storage cabinet will cause the battery pack to vibrate. The battery pack may shift due to the vibration. The battery pack may collide with each other, with the cabinet body, and with other structures inside the energy storage cabinet, which may damage the battery pack.

[0028] To prevent battery packs from being damaged by impacts, related technologies typically require the installation of vibration damping structures within the energy storage cabinet. However, existing vibration damping structures usually only address vibrations in a single direction or at a specific frequency. Taking the application of energy storage cabinets on offshore platforms as an example, the vibrations generated by offshore platforms are multidirectional and irregular. Correspondingly, the vibrations of the energy storage cabinet and battery pack are also multidirectional and irregular. Existing vibration damping structures are insufficient to cope with the multidirectional vibrations of the energy storage cabinet in the offshore environment, and the battery pack may still be damaged due to vibration.

[0029] In order to solve the problems existing in the related technologies, the solution of this application will be described in detail below with reference to the accompanying drawings.

[0030] Reference Figure 1 and Figure 2This disclosure provides an energy storage cabinet 100, which includes a cabinet body 101 and a battery unit 102. The battery unit 102 is disposed inside the cabinet body 101. The cabinet body 101 can form a receiving space for accommodating the battery unit 102 and other structures required by the energy storage cabinet 100. The cabinet body 101 can protect the battery unit 102 and prevent the external environment from affecting the use of the battery unit 102.

[0031] It is understood that the energy storage cabinet 100 in this disclosure can be applied to the aforementioned marine environment, as well as other environments with significant vibration. For the sake of clarity, this disclosure uses the application of the energy storage cabinet 100 to a marine environment as an example for illustration.

[0032] The battery unit 102 is suspended from the top wall of the cabinet 101 by an elastic member 103. The elastic member 103 has good elastic deformation capability. When the battery unit 102 vibrates, for example, in the vertical direction, the elastic member 103 can absorb the energy generated by the vibration of the battery unit 102 through stretching and compression, reduce the vibration amplitude of the battery unit 102 in the vertical direction, and prevent the battery unit 102 from colliding with other structures.

[0033] Meanwhile, the deformation capability of the elastic element 103 is not affected by multi-directional and irregular vibrations. The elastic element can be stretched and compressed in the vertical direction, and can also deform in other directions by oscillation. For example, the elastic element can also oscillate in the horizontal direction to adapt to multi-directional and irregular vibrations.

[0034] The energy storage cabinet 100 includes a first magnetic element 104 and a second magnetic element 105. The first magnetic element 104 is disposed on the inner wall of the cabinet 101, and the second magnetic element 105 is disposed on the battery unit 102. The first magnetic element 104 and the second magnetic element 105 have oppositely arranged magnetic poles in the same direction. It is understood that multiple first magnetic elements 104 and second magnetic elements 105 can be provided respectively. The inner wall of the cabinet 101 may include the top wall, side walls, and bottom wall of the cabinet 101. When the first magnetic element 104 and the second magnetic element 105 approach each other, they generate a repulsive force. This repulsive force can prevent the battery unit 102 from colliding with the cabinet 101, thus forming a non-contact buffer zone between the battery unit 102 and the cabinet 101. The first magnetic element 104 and the second magnetic element 105 can be arranged in multiple directions to ensure the coverage of the repulsive force.

[0035] The first magnetic element 104 and the second magnetic element 105 can prevent collisions between the battery unit 102 and the cabinet 101, and also ensure that the battery unit 102 can effectively reduce the amplitude of multi-directional and irregular vibrations. The first magnetic element 104 and the second magnetic element 105 provide flexible support and flexible positioning for the battery unit 102. Here, flexibility refers to the repulsive force generated between the first magnetic element 104 and the second magnetic element 105, which varies with the distance between them. When the vibration amplitude of the battery unit 102 is large, the distance between the first magnetic element 104 and the second magnetic element 105 is small, resulting in a large repulsive force, and the battery unit 102 and the cabinet 101 will also be subjected to significant forces. However, when the battery unit 102 is reset, the repulsive force decreases accordingly as the distance between the first magnetic element 104 and the second magnetic element 105 increases. The repulsive force generated by the first magnetic element 104 and the second magnetic element 105 can not only reduce the vibration amplitude of the battery unit 102, but also work with the elastic element 103 to ensure the position of the battery unit 102, making the battery unit 102 more stable.

[0036] The repulsive force generated by the first magnetic element 104 and the second magnetic element 105 can also promote the reset of the battery unit 102 after vibration, realizing the automatic reset of the battery unit 102 during vibration. In addition, the arrangement of the first magnetic element 104 and the second magnetic element 105 not only does not affect the use effect of the elastic element 103, but also effectively reduces the deformation amplitude of the elastic element 103 and reduces the wear of the elastic element 103.

[0037] It is understood that this disclosure does not specifically limit the magnitude of the deformation capability of the elastic element 103 or the magnitude of the magnetic field strength of the magnetic element. The magnitude of the deformation capability of the elastic element 103 and the magnitude of the magnetic field strength of the magnetic element can be selected according to the adaptability to different sea conditions in different sea areas where the energy storage cabinet 100 is located, so as to meet the vibration reduction requirements of the battery unit 102 under different sea conditions.

[0038] Through the above technical solutions, the energy storage cabinet 100 with battery unit 102 in this application can reduce the vertical vibration amplitude of battery unit 102 through the deformation capability of elastic element 103, and can prevent collision between battery unit 102 and cabinet body 101 when swinging or tilting through the repulsive force generated by two magnetic elements, and can also reduce the vibration amplitude of battery unit 102. At the same time, the design of elastic element 103 and magnetic elements will not be affected by multi-directional vibration and irregular vibration, thus ensuring that the energy storage cabinet 100 can be applied in complex scenarios such as at sea.

[0039] In some embodiments, the battery cell 102 may have a magnetically shielded outer shell to prevent the magnetic force of the first magnetic element 104 and / or the second magnetic element 105 from affecting the cells inside the battery cell 102.

[0040] In some possible implementations, there may be multiple battery cells 102, which are arranged at intervals in the vertical direction, and adjacent battery cells 102 are connected by multiple elastic members 103. By providing multiple elastic members 103 between adjacent battery cells 102, the multiple battery cells 102 can be formed into a whole. When one battery cell 102 is vibrated, the elastic members 103 can transfer part of the energy generated by the vibration to the adjacent battery cells 102. The multiple elastic members 103 deform together, absorbing the energy generated by the vibration, which can effectively reduce the vibration amplitude of a single battery cell 102. At the same time, the gaps created between the spaced battery cells 102, such as for gas flow, prevent heat dissipation from the battery cells 102.

[0041] In some possible implementations, the energy storage cabinet 100 may include a resilient base 106, which is disposed below and connected to the cabinet body 101. The resilient base 106 can reduce the vibration amplitude of the energy storage cabinet 100, thereby improving its structural stability. The resilient base 106 can be connected to an offshore platform. Through deformation, the resilient base 106 can prevent excessive swaying of the offshore platform from being transmitted to the energy storage cabinet 100, thus reducing the vibration amplitude of the energy storage cabinet 100 and indirectly reducing the vibration amplitude of the battery unit 102.

[0042] The elastic base 106 is a structure well-known to those skilled in the art, and its specific structure will not be elaborated upon in this disclosure. Furthermore, it is understood that this disclosure does not impose specific limitations on the specific structure of the elastic base 106, as long as it meets the usage conditions of the energy storage cabinet 100. For example, the elastic base 106 can be selected from common structures such as rubber pads, spring assemblies, or hydraulic shock absorbers. The deformation capacity of the elastic base 106 can be selected according to the adaptability to different sea conditions in different sea areas where the energy storage cabinet 100 is located, in order to meet the vibration reduction requirements of the battery unit 102 under different sea conditions.

[0043] The battery unit 102 generates heat during use, leading to a high internal temperature in the energy storage cabinet 100. Furthermore, the harsh environment of offshore platforms with drastic temperature fluctuations means that excessively high or low temperatures within the energy storage cabinet 100 can negatively impact the performance and lifespan of the battery unit 102. To maintain a suitable operating temperature for the battery unit 102 within the energy storage cabinet 100, in some possible implementations, the energy storage cabinet 100 may include a first temperature regulation structure 107. This first temperature regulation structure 107 is mounted on the cabinet body 101 and communicates with its interior. The first temperature regulation structure 107 can be used to raise and / or lower the temperature inside the cabinet body 101. In this way, the first temperature regulation structure 107 can adjust the internal temperature of the cabinet body 101 according to its internal temperature, ensuring that the internal temperature of the cabinet body 101 remains within the suitable operating temperature range for the battery unit 102, effectively guaranteeing the performance and lifespan of the battery unit 102. It is understood that this disclosure does not specifically limit the structure of the first temperature regulating structure 107, nor does it elaborate on its specific structure, as long as the first temperature regulating structure 107 can meet the usage conditions of the energy storage cabinet 100. For example, the first temperature regulating structure 107 may include a compressor, a heater, a heat exchange medium flow path disposed in the cabinet 101, and other structures.

[0044] The energy storage cabinet 100 may include a photovoltaic panel 108, which is installed outside the cabinet body 101 and is used to supply energy to the first temperature regulation structure 107. In this way, the photovoltaic panel 108 can make full use of the abundant solar energy resources at sea to generate electricity and supply energy to the first temperature regulation structure 107, saving energy and reducing the dependence of the first temperature regulation structure 107 on the power of the offshore platform, thereby improving the endurance of the energy storage cabinet 100.

[0045] It is understood that, in addition to the structures mentioned above, the energy storage cabinet 100 may also have other structures in this disclosure, which can be determined according to the functions required to be achieved by the energy storage cabinet 100. This disclosure does not specifically limit this. Furthermore, when there is a risk of collision between other structures within the energy storage cabinet 100 and the battery unit 102, the other structures may also be provided with a first magnetic element 104. In some embodiments, refer to... Figure 1 and Figure 2 The cabinet 101 may also be provided with a first reinforcing beam 109 and a second reinforcing beam 110. The first reinforcing beam 109 may extend horizontally, and the second reinforcing beam 110 may extend vertically. The first reinforcing beam 109 and the second reinforcing beam 110 are used to ensure the strength of the cabinet 101. At this time, a first magnetic component 104 may be provided on the first reinforcing beam 109 and the second reinforcing beam 110.

[0046] This disclosure also provides a testing apparatus 200, with reference to... Figure 3 and Figure 4The testing device 200 can test the energy storage cabinet 100 of any of the above embodiments to determine whether the energy storage cabinet 100 is compliant and has all its beneficial effects, which will not be elaborated here. The testing device 200 can simulate the operating conditions of the energy storage cabinet 100, simulate the vibration of the energy storage cabinet 100 and battery unit 102 during use, and determine whether the battery unit 102 will still collide and be damaged during use. The testing device 200 includes a test chamber 201 and a vibration unit 202 and detection elements disposed in the test chamber 201. The test chamber 201 provides a closed environment for the testing process, which can reduce the interference of the external environment on the test results and ensure the accuracy of the test.

[0047] The vibration unit 202 includes a first vibration table 2021 and a second vibration table 2022 mounted on the first vibration table 2021. The first vibration table 2021 is movably mounted vertically, and the second vibration table 2022 is movably mounted on the first vibration table 2021 horizontally. The second vibration table 2022 is used to fix the energy storage cabinet 100. The vibration unit 202 generates multi-directional and irregular vibrations through a combination of the vertical movement of the first vibration table 2021 and the horizontal movement of the second vibration table 2022, simulating the multi-directional vibration environment encountered by the energy storage cabinet 100 on an offshore platform, thus improving the authenticity and reliability of the test results for the energy storage cabinet 100. The second vibration table 2022 can fix the energy storage cabinet 100. During testing, the aforementioned elastic base 106 can be fixed on the second vibration table 2022 to ensure the stability of the energy storage cabinet 100 during the test and prevent displacement of the energy storage cabinet 100 during the test.

[0048] Traditional testing devices typically target vibrations in a single direction or at a specific frequency, failing to accurately simulate the multi-directional and irregular vibrations present on offshore platforms. This makes it difficult to accurately determine the actual performance of the energy storage cabinet 100.

[0049] The detection element is used to acquire displacement information of the energy storage cabinet 100 and battery unit 102, as well as acceleration information of the second vibration table 2022 and battery unit 102. The displacement information of the energy storage cabinet 100 and battery unit 102, and the acceleration information of the second vibration table 2022 and battery unit 102, are used to obtain information on the vibration intensity and frequency characteristics of the vibration. Generally, a larger acceleration indicates a higher vibration intensity, and a smaller acceleration indicates a lower vibration intensity. A higher frequency of change in the direction of acceleration per unit time indicates a higher vibration frequency, and a lower frequency of change in the direction of acceleration indicates a lower vibration frequency. The magnitude and direction of displacement reflect the amplitude of the vibration; a larger displacement indicates a higher vibration amplitude, and a smaller displacement indicates a lower vibration amplitude. Combining these two information allows for the understanding of the vibration status of the energy storage cabinet 100 and the battery unit 102, facilitating operators' judgment on whether the energy storage cabinet 100 meets the operating conditions for the corresponding working conditions and whether the battery unit 102 will experience a collision under those conditions.

[0050] By testing the energy storage cabinet 100 with the testing device 200, potential problems with the energy storage cabinet 100 can be detected in advance, avoiding the inconvenience of on-site debugging required during actual use, and ensuring that the energy storage cabinet 100 can meet the usage conditions.

[0051] In some possible implementations, the detection elements may include an acceleration sensor 203 and a displacement sensor 204. The acceleration sensor 203 is respectively disposed on the second vibration table 2022 and the battery unit 102, and can simultaneously acquire the acceleration information of the second vibration table 2022 and the acceleration information of the battery unit 102. The displacement sensor 204 is respectively disposed on the cabinet 101 and the battery unit 102, and can simultaneously acquire the displacement information of the energy storage cabinet 100 and the displacement information of the battery unit 102.

[0052] By analyzing acceleration and displacement information, it is possible to determine whether the vibration damping structure of the energy storage cabinet 100 meets the requirements of the corresponding operating conditions. It is also possible to determine whether there is a risk of collision between the battery unit 102 and the cabinet 101 or other structures during vibration. Based on this analysis, operators can optimize the vibration damping structure. It is understood that the vibration damping structure here includes the aforementioned elastic base 106, as well as the aforementioned elastic element 103, first magnetic element 104, and second magnetic element 105.

[0053] The detection element may include a strain gauge 205. The strain gauge 205 is installed on the cabinet 101 and can acquire the stress change of the energy storage cabinet 100 during vibration, determine whether the strength of the cabinet 101 can withstand the impact force of multi-directional vibration, avoid deformation or damage caused by insufficient structural strength of the cabinet 101, and ensure the structural safety of the energy storage cabinet 100.

[0054] The test apparatus 200 disclosed herein, through the design of multiple detection elements, including an acceleration sensor 203, a displacement sensor 204, and a strain gauge 205, ensures the accuracy of the detection data and helps the test apparatus 200 to promptly detect deficiencies in the vibration reduction design of the energy storage cabinet 100.

[0055] Offshore platforms not only experience multi-directional and irregular vibrations caused by sea winds and waves, but also suffer from harsh environmental factors such as salt spray corrosion, strong sunlight, and drastic temperature changes due to the special nature of the marine environment. These factors all affect the service life of the energy storage cabinet 100.

[0056] To determine the impact of these environmental factors on the service life of the energy storage cabinet 100, in some possible implementations, the testing device 200 may include a salt spray unit 206 disposed within the testing chamber 201. The salt spray unit 206 includes an atomizing nozzle 2061 and a circulating fan 2062. The atomizing nozzle 2061 sprays salt mist, and the circulating fan 2062 promotes gas flow within the testing chamber 201. The atomizing nozzle 2061 can be connected to a water source with a specific salinity. The salt spray unit 206 sprays salt mist through the atomizing nozzle 2061, and the circulating fan 2062 promotes gas flow, simulating the energy storage cabinet 100 in a high-salt marine environment to determine the corrosion resistance of the cabinet 101 and its internal structures.

[0057] In some possible implementations, the testing apparatus 200 may include a solar simulation lamp 207 disposed within the testing chamber 201. The solar simulation lamp 207 is used to simulate the intense sunlight environment of the energy storage cabinet 100 at sea to determine the UV resistance of the cabinet 101. In the intense sunlight environment, the temperature inside the cabinet 101 will also increase, which can also determine the effectiveness of the first temperature regulation structure 107 and the power generation performance of the photovoltaic panel 108.

[0058] In some possible implementations, the testing device 200 may include a second temperature regulating structure 208 disposed within the testing chamber 201. The second temperature regulating structure 208 can be used to raise and / or lower the temperature within the testing chamber 201. The second temperature regulating structure 208 is used to simulate the high or low temperature environment of the energy storage cabinet 100 at sea, determining whether the energy storage cabinet 100 can maintain a suitable operating temperature inside the cabinet 101 when the external environmental temperature is unsuitable. It is understood that this disclosure does not specifically limit the specific structure of the second temperature regulating structure 208, nor does it elaborate on its specific structure, as long as the second temperature regulating structure 208 can meet the usage conditions of the testing chamber 201. For example, the second temperature regulating structure 208 may also include a compressor, a heater, a heat exchange medium flow path disposed within the testing chamber 201, and other structures.

[0059] In the test apparatus 200 disclosed herein, the actual use scenario of the energy storage cabinet 100 can be reproduced through the salt spray unit 206, the sunlight simulation lamp 207 and the second temperature regulation structure 208, so as to determine whether the energy storage cabinet 100 can be used reliably in the marine environment for a long time.

[0060] In some possible implementations, a horizontally extending linear guide rail 2023 may be provided on the first vibration table 2021, and the second vibration table 2022 is movably connected to the linear guide rail 2023. The vibration unit 202 includes a first driving member 2024, which has a first rod parallel to the linear guide rail 2023 and capable of reciprocating motion. The first driving member 2024 is disposed on the first vibration table 2021, and the first rod is connected to the second vibration table 2022. The linear guide rail 2023 can limit and guide the second vibration table 2022, ensuring that the second vibration table 2022 has a straight and horizontal motion trajectory. The linear guide rail 2023 also reduces the friction during the horizontal movement of the second vibration table 2022, making the movement of the second vibration table 2022 smoother. The first driving member 2024, through the reciprocating motion of the first rod, drives the second vibration table 2022 to reciprocate along a horizontal straight line, generating irregular vibrations in the horizontal direction.

[0061] In some possible implementations, the vibration unit 202 may include multiple independently controllable second driving elements. These second driving elements are positioned below the first vibration table 2021 and each has a second rod capable of reciprocating vertically. The second rod is connected to the second vibration table 2022, and the second driving element drives the second vibration table 2022 to oscillate. Since the multiple second driving elements can be controlled independently, when the second rods of the multiple second driving elements move synchronously in the vertical direction but with different displacement magnitudes, it indicates that differential displacement has occurred among the multiple second driving elements. At this time, the first vibration table 2021 will deflect due to the difference in displacement, which in turn will cause the second vibration table 2022 and the energy storage tank 100 to deflect, further simulating multi-directional and irregular vibrations in a marine environment.

[0062] In some possible implementations, refer to Figure 5 and Figure 6 This disclosure also provides a testing method for an energy storage cabinet 100. The testing method is applied to the testing apparatus 200 of any of the above embodiments and has all its beneficial effects, which will not be elaborated further here. The testing method includes: Step S101: Control the vibration unit 202 to simulate the different operating conditions of the energy storage cabinet 100. By controlling the vibration unit 202 in the test device 200, simulate vibrations of different intensities, directions, and irregularities of the offshore platform.

[0063] Step S102: Control the detection element to acquire displacement information of the energy storage cabinet 100 and battery unit 102 under different operating conditions, as well as acceleration information of the second vibration table 2022 and battery unit 102. As mentioned above, displacement information and acceleration information can reflect the intensity, frequency characteristics, and amplitude information of vibration. Combining the two, the vibration conditions of the energy storage cabinet 100 and battery unit 102 can be known, which is convenient for operators to judge whether the energy storage cabinet 100 can meet the usage conditions of the corresponding operating conditions, and whether the battery unit 102 will collide under the corresponding operating conditions.

[0064] Step S103: Evaluate the energy storage cabinet 100 based on displacement and acceleration information. This evaluation is used to determine the effectiveness of the vibration damping structure in the energy storage cabinet 100, including the elastic base 106, elastic element 103, first magnetic element 104, and second magnetic element 105. It can determine whether there is a risk of the battery unit 102 colliding with the cabinet 101 or other structures during vibration. Based on the analysis, operators can optimize the vibration damping structure.

[0065] The test method in this disclosure is applicable to energy storage cabinet 100 with vibration damping structure. By using the test method in this disclosure, it is possible to effectively determine whether the vibration damping performance of energy storage cabinet 100 meets the corresponding working conditions, ensuring that energy storage cabinet 100 can operate stably for a long time on offshore platforms, and further ensuring the safe and stable operation of battery unit 102.

[0066] It is understandable that, in addition to the vibration unit 202, the results of the salt spray unit 206 mentioned above can also be used together during the execution of the test method.

[0067] In some possible implementations, step S102 may include step S1021: controlling the detection element to acquire the acceleration values ​​of the second vibration table 2022 and the battery unit 102 at first time intervals; and acquiring the displacement values ​​of the energy storage cabinet 100 and the battery unit 102 at first time intervals. The first time interval can be 1 second, 2 seconds, or other times; this disclosure does not specifically limit this. The duration of the first time interval can be determined based on the execution time of step S101. By collecting data at fixed first time intervals, data can be continuously collected, avoiding data omissions during certain time periods, ensuring the accuracy of the judgment of the energy storage cabinet 100, and guaranteeing the correspondence between the acceleration and displacement values.

[0068] Simultaneously, the collected acceleration and displacement information can be collected in a specific direction. For example, acceleration and displacement information in a first direction can be obtained, thus enabling a more accurate determination of the vibration situation in the energy storage cabinet 100 and the battery pack in the first direction. In this disclosure, the first direction is not specifically limited; it can be any direction in which the vibration situation needs to be determined. For example, the first direction can be horizontal, vertical, or oblique. It is understood that vibration is actually a reciprocating motion, and the acceleration value can be positive or negative to represent the reciprocating motion. Taking a horizontal left-right direction as an example, the first direction includes motion from left to right and motion from right to left. In this case, a positive acceleration value can be used to represent the acceleration during motion from left to right, and a negative acceleration value can be used to represent the acceleration during motion from right to left.

[0069] In some possible implementations, the root mean square of the acceleration of the battery unit 102 and the root mean square of the acceleration of the second vibration table 2022 can be obtained based on the acquired acceleration values. Similarly, the displacement ranges of the energy storage cabinet 100 and the battery unit 102 can be obtained based on the acquired displacement values. When calculating the root mean square, the square of the absolute value of each data point is first calculated, the average of these squared values ​​is calculated, and the arithmetic square root of the result is taken. Generally, unless all numbers are equal, the root mean square is always greater than the arithmetic mean. Because the square calculation amplifies the influence of extreme values ​​in the data, the root mean square can better reflect the vibration intensity of the energy storage cabinet 100 and the second vibration table 2022 during vibration.

[0070] The displacement range is the difference between the maximum and minimum values ​​among multiple data points, reflecting the amplitude information of the vibration and the maximum vibration amplitude of the energy storage cabinet 100 and battery unit 102 during the vibration process.

[0071] In some possible implementations, the vibration transmissibility TR can be obtained based on the root mean square of the acceleration of the battery cell 102 and the root mean square of the acceleration of the second vibration table 2022. The vibration transmissibility TR derived from the root mean square of acceleration can reflect the degree of vibration attenuation after the vibration of the second vibration table 2022 is transmitted to the energy storage cabinet 100, and intuitively reflect the vibration reduction effect of the elastic base 106 in the energy storage cabinet 100.

[0072] In some possible implementations, the dynamic displacement difference S can be obtained based on the displacement range of the energy storage cabinet 100 and the displacement range of the battery unit 102. The dynamic displacement difference S can reflect the relative displacement between the energy storage cabinet 100 and the battery unit 102, determine whether there is a collision risk to the battery unit 102, and intuitively reflect the vibration reduction effect of the elastic element 103, the first magnetic element 104, and the second magnetic element 105.

[0073] In some possible implementations, step S103 may include step S1031: when the vibration transmissibility TR < 1 and the dynamic displacement difference S is greater than or equal to a preset value, the vibration reduction effect of the energy storage cabinet 100 meets the usage conditions of the corresponding operating condition. Wherein, the vibration transmissibility TR satisfies: TR = A1 / A2, where A1 is the square root mean square of the acceleration of the battery unit 102, and A2 is the square root mean square of the acceleration of the second vibration table 2022; the dynamic displacement difference S satisfies: S = S1 - S2, where S1 is the displacement range of the energy storage cabinet 100, and S2 is the displacement range of the battery unit 102. A vibration transmissibility TR < 1 indicates that the vibration transmitted from the second vibration table 2022 to the energy storage cabinet 100 is reduced due to the influence of the elastic base 106, ensuring that the intensity of the vibration experienced by the battery unit 102 is less than the intensity of the vibration input from the second vibration table 2022. The smaller the vibration transmissibility TR, the better the vibration reduction effect of the elastic base 106. If the vibration transmissibility TR is greater than or equal to 1, it indicates that the elastic base 106 is ineffective and may even amplify vibrations, affecting the stability of the energy storage cabinet 100. If the dynamic displacement difference S is greater than or equal to the preset value, it indicates that the distance between the battery unit 102 and the cabinet 101 meets the safety requirements, and the battery unit 102 will not collide with the cabinet 101. If the dynamic displacement difference S is less than the preset value, it indicates that the distance between the battery unit 102 and the cabinet 101 does not meet the safety requirements, and the battery unit 102 is prone to colliding with the cabinet 101. The preset value here is adjusted according to the specific working conditions and usage scenarios of the energy storage cabinet 100. If the offshore platform where the energy storage cabinet 100 is used is in the open sea with complex sea conditions, the preset value can be increased. If the offshore platform where the energy storage cabinet 100 is used is in the near sea with relatively stable sea conditions, the preset value can be decreased.

[0074] If the vibration transmissibility TR is greater than or equal to 1, the existing elastic base 106 on the energy storage cabinet 100 can be replaced with an elastic base 106 that has a better vibration damping effect. If the dynamic displacement difference S is less than the preset value, the elastic element 103, the first magnetic element 104, and the second magnetic element 105 in the energy storage cabinet 100 can be replaced and adjusted.

[0075] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0076] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0077] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An energy storage cabinet, characterized in that, The energy storage cabinet includes: cabinet, and The battery unit is housed within the cabinet and suspended from the top wall of the cabinet by elastic elements; The energy storage cabinet further includes a first magnetic component and a second magnetic component. The first magnetic component is disposed on the inner wall of the cabinet, and the second magnetic component is disposed on the battery unit. The first magnetic component and the second magnetic component have oppositely arranged magnetic poles in the same direction.

2. The energy storage cabinet according to claim 1, characterized in that, The battery cell has multiple units, which are arranged at intervals in the vertical direction, and adjacent battery cells are connected by multiple elastic elements.

3. The energy storage cabinet according to claim 1, characterized in that, The energy storage cabinet includes a flexible base, which is disposed below the cabinet body and connected to the cabinet body.

4. The energy storage cabinet according to claim 1, characterized in that, The energy storage cabinet includes a first temperature regulating structure and a photovoltaic panel. The first temperature regulating structure is disposed on the cabinet body and communicates with the interior of the cabinet body. The photovoltaic panel is installed outside the cabinet and is used to supply energy to the first temperature regulation structure.

5. A testing apparatus, characterized in that, The testing device is applied to the energy storage cabinet according to any one of claims 1-4, and the testing device includes a testing chamber and a component disposed within the testing chamber: The vibration unit includes a first vibration table and a second vibration table mounted on the first vibration table. The first vibration table is movably mounted vertically, and the second vibration table is movably mounted on the first vibration table horizontally. The second vibration table is used to fix the energy storage cabinet. The detection element is used to acquire displacement information of the energy storage cabinet and the battery unit, as well as acceleration information of the second vibration table and the battery unit.

6. The testing apparatus according to claim 5, characterized in that, The detection elements include an acceleration sensor, a displacement sensor, and a strain gauge. The acceleration sensor is respectively installed on the second vibration table and the battery unit, the displacement sensor is respectively installed on the cabinet and the battery unit, and the strain gauge is installed on the cabinet.

7. The testing apparatus according to claim 5, characterized in that, The testing apparatus includes components respectively disposed within the testing chamber: The salt spray unit includes an atomizing nozzle and a circulating fan. The atomizing nozzle is used to spray salt spray, and the circulating fan is used to promote gas flow in the test chamber. Simulated sunlight lamps; A second temperature regulation structure is used to raise and / or lower the temperature inside the test chamber.

8. The testing apparatus according to claim 5, characterized in that, The first vibration table is provided with a horizontally extending linear guide rail, and the second vibration table is movably connected to the linear guide rail. The vibration unit includes a first driving member, which has a first rod that is parallel to the linear guide rail and can reciprocate. The first driving member is disposed on the first vibration table and the first rod is connected to the second vibration table.

9. The testing apparatus according to claim 5, characterized in that, The vibration unit includes multiple independently controllable second driving components. The second driving components are disposed below the first vibration table. Each second driving component has a second rod capable of reciprocating in the vertical direction. The second rod is connected to the second vibration table, and the second driving component is used to drive the second vibration table to shake.

10. A testing method for an energy storage cabinet, characterized in that, The test method is applied to the test apparatus according to any one of claims 5-9, and the test method includes: The vibration unit is controlled to simulate the different operating conditions of the energy storage cabinet. The detection element is controlled to acquire displacement information of the energy storage cabinet and the battery unit under different operating conditions, as well as acceleration information of the second vibration table and the battery unit; The energy storage cabinet is evaluated based on the displacement information and the acceleration information.

11. The test method according to claim 10, characterized in that, The step of controlling the detection element to acquire the displacement information of the energy storage cabinet and the battery unit under different operating conditions, as well as the acceleration information of the second vibration table and the battery unit, includes: The detection element is controlled to acquire the acceleration values ​​of the second vibration table and the battery unit at each first time interval; and to acquire the displacement values ​​of the energy storage cabinet and the battery unit at each first time interval.

12. The test method according to claim 10, characterized in that, The step of evaluating the energy storage cabinet based on the displacement information and the acceleration information includes: When the vibration transmissibility TR < 1 and the dynamic displacement difference S is greater than or equal to a preset value, the vibration reduction effect of the energy storage cabinet meets the usage conditions of the corresponding operating condition. The vibration transmissibility TR satisfies: TR=A1 / A2, where A1 is the square root of the acceleration of the battery cell and A2 is the square root of the acceleration of the second vibration table; The dynamic displacement difference S satisfies: S = S1 - S2, where S1 is the displacement range of the energy storage cabinet and S2 is the displacement range of the battery unit.

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