High-voltage box for energy storage cabinet and energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage cabinets, particularly provides a high-voltage box for an energy storage cabinet and the energy storage cabinet, and aims to solve the problem of how to improve the communication quality of a battery management module. In order to achieve the purpose, the high-voltage box for the energy storage cabinet comprises a box body, a battery management module and a filter, the battery management module is arranged in the box body, and the filter is arranged in the box body and integrated on the battery management module. According to the arrangement mode, the battery management module is integrated in the high-voltage box, so that the integration level of the energy storage cabinet can be improved, and the space utilization rate is improved. In addition, the filter is integrated on the battery management module, so that the interference of electromagnetism or other factors in the high-voltage box can be reduced, the communication quality of the battery management module is ensured, and the communication stability and reliability of the battery management module are improved.

Description

Technical Field

[0001] The utility model relates to the field of energy storage cabinets, and particularly provides a high-voltage box for an energy storage cabinet and an energy storage cabinet. Background Art

[0002] An energy storage cabinet is an energy storage device designed for industrial and commercial applications. It has the ability to store and release energy to meet a wide range of power demands. In addition, the energy storage cabinet integrates energy management and optimization control functions to provide a more efficient and intelligent energy utilization solution. However, currently, the battery management module is often independently arranged in the energy storage cabinet to manage the battery packs in the cabinet. This arrangement not only reduces the integration degree of the energy storage cabinet but also affects the effective utilization of the internal space of the energy storage cabinet.

[0003] In order to improve the integration degree and space utilization rate of the energy storage cabinet, the battery management module is generally arranged in the high-voltage box. However, due to interference from electromagnetic or other factors inside the high-voltage box, the communication of the battery management module may be interfered, resulting in a decline in communication quality.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0005] The utility model aims to solve the above technical problems, that is, to solve the problem of how to improve the communication quality of the battery management module in the high-voltage box. The present application provides a high-voltage box for an energy storage cabinet, including:

[0006] A box body;

[0007] A battery management module, which is arranged inside the box body;

[0008] A filter, which is arranged inside the box body and integrated on the battery management module.

[0009] In the preferred technical solution of the above high-voltage box for an energy storage cabinet, the high-voltage box further includes:

[0010] A switching power supply and a high-voltage module, both of which are arranged inside the box body, and the switching power supply is respectively connected to the battery management module and the high-voltage module.

[0011] In the preferred technical solution of the above high-voltage box for an energy storage cabinet, the switching power supply includes an AC-DC switching power supply and / or a DC-DC switching power supply.

[0012] In the preferred technical solution of the above high-voltage box for an energy storage cabinet, the high-voltage box further includes:

[0013] A relay, which is arranged in the high-voltage box and is respectively connected to the high-voltage module and the battery in the energy storage cabinet.

[0014] This application also provides an energy storage cabinet, including a cabinet body and the high-voltage box according to the above preferred technical solution, and the high-voltage box is arranged in the cabinet body.

[0015] In the preferred technical solution of the above energy storage cabinet, the top plate of the cabinet body is an inclined plate; and / or

[0016] The cabinet body is also provided with a lifting ring; and / or

[0017] The cabinet body is provided with a slot for a forklift to insert.

[0018] In the preferred technical solution of the above energy storage cabinet, a heat preservation member is arranged on the inner wall and / or outer wall of the cabinet body.

[0019] In the preferred technical solution of the above energy storage cabinet, the heat preservation member is detachably arranged on the cabinet body.

[0020] In the preferred technical solution of the above energy storage cabinet, a ventilation opening is also opened on the cabinet body, and a filter member is arranged on the ventilation opening.

[0021] In the preferred technical solution of the above energy storage cabinet, the filter member is detachably arranged on the ventilation opening.

[0022] Those skilled in the art can understand that for the high-voltage box of the energy storage cabinet of the present utility model, by integrating the battery management module in the high-voltage box, the integration degree of the energy storage cabinet can be improved, and the space utilization rate can be increased. In addition, by integrating a filter on the battery management module, the interference of electromagnetic or other factors in the high-voltage box can be reduced, the communication quality of the battery management module can be ensured, and the stability and reliability of the communication of the battery management module can be improved.

[0023] Furthermore, by connecting the switching power supply to the battery management module and the high-voltage module, the high-voltage module can directly supply power to the battery management module, without the need to lead wires from the outside to supply power to the battery management module, thereby improving the space utilization rate of the energy storage cabinet.

[0024] Furthermore, by arranging a relay in the high-voltage box, the on-off of the high-voltage box and the battery pack can be controlled.

[0025] Furthermore, by setting the top plate of the cabinet body as an inclined plate, it helps the rainwater to slide off quickly, reduces the staying time of the rainwater on the top plate, thereby avoiding the accumulation of rainwater and improving the waterproof performance of the energy storage cabinet. In addition, by arranging a lifting ring and / or a slot for a forklift to insert on the cabinet body, it is convenient to transport the energy storage cabinet.

[0026] Furthermore, by providing a heat insulation member on the inner wall or outer wall of the cabinet body, the heat exchange between the inside and outside of the cabinet body can be effectively reduced, thereby avoiding the temperature rise of the battery pack in the battery compartment due to the influence of the external environment and affecting the performance of the battery pack.

[0027] Furthermore, by detachably providing the heat insulation member on the cabinet body, the disassembly and assembly of the heat insulation member are facilitated.

[0028] Furthermore, by providing a filter member at the ventilation opening of the cabinet body, the ventilation and dust-proof effect of the energy storage cabinet can be improved.

[0029] Furthermore, by detachably providing the filter member on the cabinet body, the disassembly and assembly of the filter cotton are facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following describes the preferred embodiments of the present utility model in conjunction with the drawings, in which:

[0031] Figure 1 is a structural diagram of an energy storage cabinet in the prior art;

[0032] Figure 2 is an internal schematic diagram of the high-voltage box for the energy storage cabinet of the present application;

[0033] Figure 3 is a system diagram of the high-voltage box for the energy storage cabinet of the present application;

[0034] Figure 4 is a structural diagram of the energy storage cabinet of the present application;

[0035] Figure 5 is a structural diagram of the main body in the present application;

[0036] Figure 6 is a front view of the cabinet body in the present application;

[0037] Figure 7 is a plan view of the door body in the present application;

[0038] Figure 8 is a plan view of the battery compartment in the present application.

[0039] LIST OF REFERENCE NUMERALS:

[0040] 1. Cabinet; 11. Body; 111. Battery compartment; 112. Electrical compartment; 113. Top plate; 114. Side plate; 115. Base; 116. Thermal insulation cotton; 12. Door; 121. Louver; 122. Filter cotton; 13. Suspension ring; 2. Partition; 3. High-voltage box; 31. High-voltage module; 311. Fuse; 312. Pre-charge contactor; 313. Pre-charge resistor; 314. Current sensor; 315. Total positive contactor; 316. Total negative contactor; 317. Circuit breaker; 318. Lightning arrester; 32. Battery management module; 33. Switching power supply; 34. Time relay; 35. Box body; 4. Battery pack; 41. Battery rack; 5. Current conversion device; 6. Liquid cooling unit; 7. Power distribution system; 8. Explosion-proof valve; 9. Compartment-level aerosol; 10. Fire alarm detector. Detailed implementation manners

[0041] The preferred implementation manners of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present application and are not intended to limit the protection scope of the present application.

[0042] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship such as "upper", "lower", "inner", "bottom", etc. are based on the direction or positional relationship shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0043] In addition, it should be noted that in the description of the present application, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0044] As Figure 1As shown in the figure, in the prior art, the energy storage cabinet includes a cabinet body 1, and a battery pack 4, a high-voltage box 3, a current conversion device 5, a liquid cooling unit 6, a power distribution system 7, and a battery management module 32 arranged inside the cabinet body 1. Among them, the cabinet body 1 includes a main body 11 and a door body 12 arranged on the main body 11 and used to open or close the main body 11. A partition 2 is arranged horizontally inside the main body 11, and the partition 2 divides the main body 11 into a battery compartment 111 and an electrical compartment 112 distributed up and down. Among them, a plurality of battery racks 41 are arranged in the battery compartment 111, and the plurality of battery racks 41 are arranged in the up-and-down direction. Each battery rack 41 can be provided with a battery pack 4, so that a plurality of battery packs 4 are arranged in the battery compartment 111 in the up-and-down direction. The high-voltage box 3, the current conversion device 5, the liquid cooling unit 6, the power distribution system 7, and the battery management module are all arranged in the electrical compartment 112, and the battery management module 32 is arranged in the high-voltage box 3. The high-voltage box 3, the current conversion device 5, and the liquid cooling unit 6 are arranged in the electrical compartment 112 in the up-and-down direction, and the power distribution system 7 is arranged on the same side of the current conversion device 5. The power distribution system 7 is respectively connected to a plurality of battery packs 4, the high-voltage box 3, the current conversion device 5, the liquid cooling unit 6, and the battery management module 32. Among them, the liquid cooling pipes of the liquid cooling unit 6 can be respectively communicated with the cooling channels of each battery pack 4 to cool the battery pack 4. Through the above setting method, the integration degree and space utilization rate of the energy storage cabinet can be improved. However, since the battery management system is easily interfered by electromagnetic or other factors inside the high-voltage box 3 when it is arranged in the high-voltage box 3, the communication of the battery management module 32 may be interfered, resulting in a decline in communication quality.

[0045] See Figures 2 - 3 , and describe the high-voltage box of the present application.

[0046] As Figure 2 shown, in order to solve the above problem of how to improve the communication quality of the battery management module in the high-voltage box, the high-voltage box 3 for the energy storage cabinet of the present application includes a box body 35, a battery management module 32, and a filter. Among them, the battery management module 32 is arranged inside the box body 35. The filter is arranged inside the box body 35 and integrated on the battery management module 32.

[0047] By integrating the battery management module 32 into the high-voltage box 3 in the present application, the integration degree of the energy storage cabinet can be improved, and the space utilization rate can be improved. In addition, by integrating the filter on the battery management module 32, the interference of electromagnetic or other factors inside the high-voltage box 3 can be reduced, the communication quality of the battery management module 32 can be ensured, and the stability and reliability of the communication of the battery management module 32 are improved.

[0048] Next, further refer to Figures 2 - 3, a preferred embodiment of the high-voltage box 3 for an energy storage cabinet of the present application will be introduced. Those skilled in the art can understand that the embodiments introduced below are only used to illustrate the principle of the present application and are not intended to limit the protection scope of the present application. On the premise that the high-voltage box 3 capable of being used in the energy storage cabinet at least includes a box body 35, a battery management module 32 and a filter, those skilled in the art can adjust the following setting methods so that the present application can be applied to more specific application scenarios.

[0049] Refer to Figure 2 , the high-voltage box 3 includes a box body 35 and a battery management module 32, a high-voltage module 31, a switching power supply 33, a filter and a relay 34 arranged in the box body 35. Among them, the filter is integrated on the battery management module 32 and is connected to the battery management module 32, so as to reduce the interference of electromagnetic or other factors in the high-voltage box 3 and ensure the communication quality of the battery management module 32. The switching power supply 33 is respectively connected to the battery management module 32 and the high-voltage module 31, so that the high-voltage module 31 can directly supply power to the battery management module 32 without leading wires from the outside to supply power to the battery management module 32, thereby improving the space utilization rate of the energy storage cabinet. The relay is respectively connected to the high-voltage module 31 and the battery pack 4, so as to control the on-off of the high-voltage box 3 and the battery pack 4.

[0050] It should be noted that the present application does not limit the specific forms of the lightning arrester, relay and filter, as long as the lightning arrester can play the role of lightning protection, the relay can control the on-off of the high-voltage box 3 and the battery pack 4, and the filter can improve the communication quality of the battery management module 32. For example, the lightning arrester can be an Ethernet lightning arrester. And / or, the relay can be a time relay. And / or, the filter is an LC filter.

[0051] Among them, the high-voltage module 31 includes a fuse 311, a pre-charge contactor 312, a pre-charge resistor 313, a current sensor 314, a total positive contactor 315, a total negative contactor 316, a circuit breaker 317 and a lightning arrester 318, as shown in Refer to Figure 2 . The total negative contactor 316, the total positive contactor 315, the pre-charge contactor 312, the current sensor 314, the fuse 311, and the switching power supply 33 are all connected to the battery management module 32. The total positive contactor 315 is connected to the path between the battery pack 4 and the disconnector. The negative total negative contactor 316 is connected to the path between the battery pack 4 and the disconnector. The pre-charge contactor 312 and the pre-charge resistor 313 form a loop with the path between the battery pack 4 and the total positive contactor 315. The current sensor 314 is respectively connected to the battery pack 4 and the fuse 311. The fuse 311 is connected to the battery pack 4. The circuit breaker 317 is respectively connected to the battery pack 4 and the switching power supply 33, as Figure 3As shown in the figure. The power switch is a DC-DC switching power supply 33. By using the DC-DC switching power supply 33, the high-voltage box 3 can directly supply power to the battery management module 32. The time relay 34 is respectively connected to the circuit breaker 317 and the disconnecting switch, so as to control the on-off of the high-voltage box 3 and the battery pack 4, and further facilitate the control of the on-off time of the two.

[0052] It should be noted that in this application, the switching power supply 33 also includes an AC-DC switching power supply, which can supply power to the electrical components in the energy storage cabinet, such as supplying power to the liquid cooling unit 6. In addition, this application does not limit the specific form of the current sensor, as long as it can detect the output current of the battery pack. The current sensor can be a Hall current sensor.

[0053] Next, refer to Figures 4 - 8 , and describe the energy storage cabinet of this application.

[0054] This application provides an energy storage cabinet, which includes a cabinet body 1 and the high-voltage box 3 described in any of the above embodiments arranged in the cabinet body 1.

[0055] Refer to Figures 4 - 5 , the cabinet body 1 includes a main body 11 and a door body 12. Among them, the main body 11 is a cuboid-like structure with one side open surrounded by a top plate 113, a base 115 and three side plates 114. The door body 12 is arranged on the open side of the main body 11 for opening or closing the main body 11. The top plate 113 is an inclined plate, that is, the included angle between the top plate 113 and the horizontal plane is greater than 0°, which can help rainwater slide off quickly, reduce the staying time of rainwater on the top plate 113, avoid rainwater accumulation, and improve the waterproof performance of the energy storage cabinet. Four lifting rings 13 are arranged on the top plate 113. Through the lifting rings 13, it is convenient to transport the energy storage cabinet. An explosion-proof valve 8 is arranged on the top plate 113, which can ensure the safety and stability of the energy storage cabinet during operation and prevent possible explosion accidents.

[0056] Of course, the way to improve the safety and stability of the energy storage cabinet and avoid fire or explosion accidents in this application is not fixed, and those skilled in the art can adjust it according to the setting needs. For example, the top plate 113 and / or the side plates 114 can be set as explosion-proof plates. In addition, the setting of the explosion-proof valve 8 in this application is not fixed, and those skilled in the art can adjust it according to the setting needs. For example, the explosion-proof valve 8 can also be arranged on the side plate 114.

[0057] Of course, the method of transporting the energy storage cabinet in this application is not fixed, and those skilled in the art can adjust it according to needs. For example, slots can be provided on the base 115 for a forklift to insert, which is also convenient for transporting the energy storage cabinet. In addition, the number and position of the lifting rings 13 in this application are not fixed, and those skilled in the art can adjust them according to specific application scenarios. For example, lifting rings 13 can also be provided on the side plate 114. And / or, the number of lifting rings 13 can be 1, 2, 3 or other numbers.

[0058] Next, refer to Figures 4 - 5 , heat insulation cotton 116 is provided on the inner walls of two side plates 114 adjacent to the main body 11, so as to reduce heat exchange with the external environment, and thus avoid the temperature rise of the battery pack 4 in the battery compartment 111 due to the influence of the external environment, which affects the performance of the battery pack 4. Among them, the heat insulation cotton 116 is provided with clamping protrusions, and the inner wall of the side plate 114 is provided with clamping grooves. The heat insulation cotton 116 is clamped and fitted through the clamping protrusions and clamping grooves, so as to install the heat insulation cotton 116 on the main body 11, improve the assembly efficiency of the energy storage cabinet, and at the same time facilitate the disassembly of the energy storage cabinet.

[0059] Of course, the setting position and setting method of the heat insulation cotton 116 in this application are not fixed, and those skilled in the art can adjust it according to the setting needs. For example, the heat insulation cotton 116 can also be provided on the outer wall of the side plate 114. And / or, the heat insulation cotton 116 can also be pasted on the side plate 114. In addition, the specific form of the heat insulation member in this application is not fixed, and those skilled in the art can select according to needs. For example, the heat insulation member can also be a heat insulation board.

[0060] Next, refer to Figures 6 - 7 , ventilation openings are provided on both the door body 12 and the side plate 114 on the side far from the door body 12. A louver 121 and a filter cotton 122 are installed in sequence from the outside of the cabinet body 1 to the inside of the cabinet body 1 in the ventilation opening. By providing the louver 121 in the ventilation opening, on the one hand, it can allow air to circulate, and on the other hand, it can also play the role of rain prevention. By providing the filter cotton 122, the ventilation and dust prevention effect of the energy storage cabinet can be improved. Among them, connection protrusions are provided on both the louver 121 and the filter cotton 122, and connection slides are provided on the door body 12 corresponding to the ventilation opening. The connection protrusions on the louver 121 and the filter cotton 122 can be installed on the ventilation opening through the connection slides in sequence, so that the energy storage cabinet can achieve the effects of rain prevention and dust prevention while meeting the requirement of improving ventilation.

[0061] Of course, the way the louver 121 and the filter cotton 122 are installed on the vent in this application is not fixed, and those skilled in the art can adjust it according to the setting requirements. For example, the louver 121 can be installed on the vent through fastening screws. And / or, the filter cotton 122 can be pasted on the vent. In addition, the setting position of the vent in this application is not fixed, and those skilled in the art can adjust it according to the needs. For example, the vent can be only arranged on the door body 12, or the vent can be only arranged on the side plate 114 far away from the door body 12, or the vent can also be arranged on one or two side plates 114 adjacent to the door body 12. In addition, in other preferred embodiments, the setting of the louver 121 is not necessary, and those skilled in the art can choose according to the needs.

[0062] In addition, the specific form of the filter element in this application is not fixed, and those skilled in the art can choose according to the needs. For example, the filter element can also be a filter net.

[0063] Next, refer to Figures 4 - 5 and Figure 8 , a partition 2 is arranged in the main body 11, so that the main body 11 is divided into a battery compartment 111 and an electrical compartment 112 which are distributed up and down. Among them, the partition 2 is a hollow structure, and the inside is filled with heat insulation cotton, so as to avoid heat exchange between the battery compartment 111 and the electrical compartment 112, and further avoid the problem that the battery pack 4 in the battery compartment 111 overheats due to the influence of the electrical components in the electrical compartment 112. A fire alarm detector 10 and a cabin-level aerosol 9 are arranged at the top inside the battery compartment 111. Through the fire alarm detector 10 and the cabin-level aerosol 9, it is ensured that the battery compartment 111 can be processed in a timely and effective manner when a fire occurs, and the influence of the fire on the equipment and the environment can also be reduced, and the reliability and safety of the battery compartment 111 are improved.

[0064] Of course, the heat insulation element filled in the partition 2 in this application is not fixed, and those skilled in the art can adjust it according to the needs. For example, the heat insulation element can also be an inorganic filler, such as mica, etc. In addition, the specific type of the fire extinguisher in this application is not limited, as long as it can extinguish electrical fires. For example, the fire extinguisher can also be a carbon dioxide fire extinguisher, etc. In addition, in other preferred embodiments, the setting of the fire alarm detector 10 and / or the cabin-level aerosol 9 is not necessary, and those skilled in the art can choose according to the setting needs.

[0065] Those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims of this application, any one of the claimed embodiments can be used in any combination.

[0066] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principle of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A high-voltage box for an energy storage cabinet, characterized in that, The high-voltage box includes: A box body; A battery management module, which is arranged inside the box body; A filter, which is arranged inside the box body and integrated on the battery management module.

2. The high-voltage box for an energy storage cabinet according to claim 1, wherein The high-voltage box further includes: A switching power supply and a high-voltage module, both of which are arranged inside the box body, and the switching power supply is respectively connected to the battery management module and the high-voltage module.

3. The high-voltage box for an energy storage cabinet according to claim 2, wherein, The switching power supply includes an AC-DC switching power supply and / or a DC-DC switching power supply.

4. The high-voltage box for an energy storage cabinet according to claim 2, wherein, The high-voltage box further includes: A relay, which is arranged inside the high-voltage box and is adapted to be respectively connected to the high-voltage module and the battery in the energy storage cabinet.

5. An energy storage cabinet, characterized in that, It includes a cabinet body and a high-voltage box for an energy storage cabinet according to any one of claims 1-4, and the high-voltage box is arranged inside the cabinet body.

6. The energy storage cabinet according to claim 5, wherein, The top plate of the cabinet body is an inclined plate; and / or A lifting ring is further arranged on the cabinet body; and / or A slot for a forklift to insert is arranged on the cabinet body.

7. The energy storage cabinet according to claim 5, characterized in that, A heat preservation member is arranged on the inner wall and / or outer wall of the cabinet body.

8. The energy storage cabinet according to claim 7, wherein, The heat preservation member is detachably arranged on the cabinet body.

9. The energy storage cabinet according to claim 5, wherein A ventilation opening is further opened on the cabinet body, and a filtering member is arranged on the ventilation opening.

10. The energy storage cabinet according to claim 9, characterized in that, The filtering member is detachably arranged on the ventilation opening.

Images