Power distribution cabinet and energy storage equipment

Abstract

The invention provides a power distribution cabinet and energy storage equipment. The power distribution cabinet comprises power supply equipment; the M loads are located in N load loops connected with the power supply equipment, each load loop comprises at least one load, M is a positive integer larger than or equal to N, and N is larger than or equal to 2; the N protection devices are in one-to-one correspondence with the N load loops and are arranged in the N load loops; wherein the protection device is at least one of a circuit breaker and a fuse. Compared with the mode that all loads are arranged in the same load loop, the mode that the M loads are distributed in the N load loops has the advantages that the load capacitance value can be reduced, then when the M loads are started, the starting current can be reduced, the influence of the starting current on the front-end equipment of the power supply equipment is reduced, and therefore the stability of the energy storage equipment provided with the power distribution cabinet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a power distribution cabinet and an energy storage device. Background Art

[0002] The energy storage container is equipped with a distribution cabinet, which has a power supply device. The power supply device carries a high-voltage box and a battery cluster circuit. The battery cluster circuit is equipped with a battery management system (BMS) device. The high-voltage box and the battery cluster circuit have a large load capacity.

[0003] like Figure 1 As shown, the power supply device 102' is connected to the load circuit 106' through the fuse 104'. Figure 2 As shown, the power supply device 102' is connected to the load circuit 106' via a circuit breaker 108'.

[0004] When the power supply equipment is started with the high-voltage box and the battery cluster circuit loaded, the instantaneous current at the time of startup is relatively large. This starting current will affect the front-end equipment of the power supply equipment, such as causing damage to the front-end equipment, causing the front-end equipment to fail to output power, and affecting the stability of the energy storage container operation. Summary of the invention

[0005] The present invention aims to at least solve the technical problem in the prior art or related technology that the instantaneous current of the power supply equipment is relatively large when it is started, and the starting current will affect the front-end equipment of the power supply equipment, such as causing damage to the front-end equipment, causing the front-end equipment to fail to output power, and affecting the technical problem of the operation stability of the energy storage container.

[0006] To this end, a first aspect of the present invention is to provide a power distribution cabinet.

[0007] A second aspect of the present invention provides an energy storage device.

[0008] In view of this, according to the first aspect of the present invention, the present invention provides a distribution cabinet, including: power supply equipment; M loads, located in N load circuits connected to the power supply equipment, each load circuit includes at least one load, M is a positive integer greater than or equal to N, N is greater than or equal to 2; N protection devices, the N protection devices correspond one-to-one to the N load circuits, and are arranged in the N load circuits; wherein the protection device is at least one of a circuit breaker and a fuse.

[0009] The present invention proposes a power distribution cabinet, which includes a power supply device, M loads and N protection devices, wherein the M loads are arranged in N load circuits and connected to the power supply device via the N load circuits, so that the power supply device can supply power to the M loads.

[0010] In this process, the M loads are not concentrated in the same load circuit, but distributed in N load circuits. Compared with setting all the loads in the same load circuit, distributing the M loads in N load circuits can reduce the load capacitance, and then when the M loads are started, the starting current can be reduced, reducing the impact of the starting current on the front-end equipment of the power supply equipment, thereby improving the stability of the energy storage equipment equipped with a distribution cabinet.

[0011] In addition, a protection device is provided in each load circuit. When protected by the protection device, the size of the starting current can be further limited to avoid excessive starting current and reduce the impact of the starting current on the front-end equipment of the power supply equipment, thereby improving the stability of the energy storage equipment equipped with a distribution cabinet.

[0012] In addition, the provided protection device can also protect the load in the load circuit in which it is located, thereby preventing the load in the load circuit in which it is located from being damaged due to overcurrent caused by excessive starting current.

[0013] In some technical solutions, M is equal to N, and in this case, each load loop is provided with a load.

[0014] In some technical solutions, M is greater than N. In this case, each load loop is provided with at least one load.

[0015] Among them, a circuit breaker refers to a switching device that can close, carry and disconnect currents under normal circuit conditions and can close, carry and disconnect currents under abnormal circuit conditions within a specified time.

[0016] Among them, a fuse refers to an electrical appliance that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value.

[0017] In addition, the power distribution cabinet proposed by the present invention also has the following additional technical features.

[0018] In some technical schemes, optionally, the distribution cabinet also includes: O first resistors, the O first resistors correspond one-to-one to the O load circuits, and are arranged in the O load circuits; wherein O is a positive integer greater than or equal to 1, and O is less than or equal to N.

[0019] In this technical solution, for the scenario where O load circuits cannot be delayed in conduction, a first resistor is set in each of O load circuits among N load circuits so as to change the resistance of each load circuit. The setting of the first resistor will increase the resistance value of the load circuit, and then when the load circuit is turned on, the starting current can be lowered. Obviously, when M loads are started and run at the same time, the starting current of the M loads that are started at the same time can be reduced.

[0020] In this technical solution, when M loads are started, the starting current can be reduced, reducing the impact of the starting current on the front-end equipment of the power supply equipment, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0021] In the above technical solution, the resistance values ​​of any two first resistors among the O first resistors are different.

[0022] In some technical solutions, O is equal to N, that is, a first resistor is set in each load loop.

[0023] In some technical solutions, O is equal to N-1, that is, each of the N-1 load loops is provided with a first resistor.

[0024] In some technical solutions, optionally, the distribution cabinet also includes: O first inductors, the O first inductors correspond one-to-one to the O load circuits, and are arranged in the O load circuits; wherein O is a positive integer greater than or equal to 1, and O is less than or equal to N.

[0025] In this technical solution, for the scenario where O load circuits can be delayed in conduction, a first inductor is set in each of O load circuits among N load circuits. Since the first inductor is resistive, the first inductor can play a role in smoothing the starting current. Obviously, even if M loads are started at the same time, the starting current of the power supply equipment can be reduced, and the impact of the starting current on the front-end equipment of the power supply equipment can be reduced, thereby improving the stability of the energy storage equipment equipped with a distribution cabinet.

[0026] In the above technical solution, the inductance values ​​of any two first inductors among the O first inductors are different.

[0027] In some technical solutions, O is equal to N, that is, a first inductor is provided in each load loop.

[0028] In some technical solutions, O is equal to N-1, that is, each of the N-1 load loops is provided with a first inductor.

[0029] In some technical schemes, optionally, the distribution cabinet also includes: O first resistors, the O first resistors correspond one-to-one to the O load circuits, and are arranged in the O load circuits; O first inductors, the O first inductors correspond one-to-one to the O first resistors, respectively, and each first inductor is connected in parallel with the corresponding first resistor; wherein O is a positive integer greater than or equal to 1, and O is less than or equal to N.

[0030] In this technical solution, a first resistor and a first inductor are set for each of the O load circuits, wherein the setting of the first resistor can change the resistance of each load circuit, so that the resistance value of the load circuit increases, and then when the load circuit is turned on, the starting current can be lowered. Obviously, when M loads are started and run at the same time, the starting current of the M loads that are started at the same time can be reduced.

[0031] While setting the first resistor, the first inductor is used to further smooth the starting current, thereby reducing the starting current of the power supply equipment and reducing the impact of the starting current on the front-end equipment of the power supply equipment, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0032] In the above technical solution, after the load circuit is turned on, since the first inductor is connected in parallel with the first resistor, the first inductor can be used to short-circuit the first resistor so that the first resistor is not turned on. In this process, the influence of the first resistor on the load circuit can be reduced, and a smooth start-up without reducing power, current and voltage can be achieved, reducing the influence of the starting current on the front-end equipment of the power supply equipment, thereby improving the stability of the energy storage equipment equipped with a distribution cabinet.

[0033] In the above technical scheme, one or more load circuits can be selected to add a first resistor and a first inductor according to the spatial layout inside the distribution cabinet, thereby reducing the manufacturing cost of the distribution cabinet while saving space inside the distribution cabinet, providing convenience for the layout, routing and maintenance inside the distribution cabinet.

[0034] In some technical solutions, optionally, the power distribution cabinet further includes: a plurality of second resistors, and the second resistors are used to be connected in parallel with the first resistors.

[0035] In this technical solution, it can be seen from the above that setting a first resistor in the load circuit can increase the resistance value of the load circuit, thereby reducing the starting current of the circuit.

[0036] For usage scenarios with relatively high requirements for instantaneous starting current, loop power, and loop current, a second resistor can be set in parallel with the first resistor so that the resistance value of the load loop can be adjusted using the second resistor.

[0037] In this process, the setting of the second resistor can reduce the resistance value of the load loop, thereby reducing the impact of too low output power of the loop, providing support for ensuring the feasibility of the loop function.

[0038] In some technical schemes, optionally, the number of second resistors set in parallel with the first target resistor is a first value, and the number of second resistors set in parallel with the second target resistor is a second value; wherein the first target resistor and the second target resistor are any two first resistors among O first resistors, and the first value is equal to the second value or the first value is not equal to the second value.

[0039] In this technical solution, in each load loop, the number of second resistors connected in parallel with the first resistor can be the same or different, which can be set according to actual use needs and will not be described in detail here.

[0040] In some technical solutions, optionally, the power supply device is a DC power supply device or an AC power supply device.

[0041] In this technical solution, the DC power supply device can be understood as a power supply device that provides DC power to a load circuit. Similarly, the AC power supply device can be understood as a power supply device that provides AC power to a load circuit.

[0042] In this technical solution, the power supply equipment can be selected according to actual usage needs, so that the distribution cabinet can meet the usage requirements of different scenarios.

[0043] In some technical solutions, optionally, the power supply device includes an uninterruptible power supply or a switching power supply.

[0044] In this technical solution, the uninterruptible power supply (UPS) is an uninterruptible power supply containing an energy storage device, which is mainly used to provide uninterruptible power supply to some equipment that has high requirements on power supply stability.

[0045] In some technical solutions, optionally, line lengths of different load loops are different.

[0046] In this technical solution, when the protective device is a fuse, due to the different line lengths of different load circuits, the starting currents of the load circuits will decrease when they are combined together. Therefore, the starting current of the power supply equipment can be reduced, and the impact of the starting current on the front-end equipment of the power supply equipment can be reduced, thereby improving the stability of the energy storage equipment equipped with a distribution cabinet.

[0047] When the protective device is a circuit breaker, there is a time difference in closing the circuit breaker. Therefore, the starting current of the power supply equipment can be reduced, and the impact of the starting current on the front-end equipment of the power supply equipment can be reduced, thereby improving the stability of the energy storage equipment equipped with a distribution cabinet.

[0048] According to a second aspect of the present invention, the present invention provides an energy storage device, comprising: a power distribution cabinet as described in any one of the above items.

[0049] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0051] Figure 1 A connection diagram of a power supply device, a fuse, and a load circuit in a related technical solution is shown;

[0052] Figure 2 A connection diagram of a power supply device, a circuit breaker, and a load circuit in a related technical solution is shown;

[0053] Figure 3 One of the connection diagrams of a power distribution cabinet in an embodiment of the present invention is shown:

[0054] Figure 4 The second connection diagram of a power distribution cabinet in an embodiment of the present invention is shown:

[0055] Figure 5 The third connection diagram of a power distribution cabinet in an embodiment of the present invention is shown:

[0056] Figure 6 A fourth connection diagram of a power distribution cabinet in an embodiment of the present invention is shown:

[0057] Figure 7 The fifth connection diagram of a power distribution cabinet in an embodiment of the present invention is shown:

[0058] Figure 8 The sixth connection diagram of a power distribution cabinet in an embodiment of the present invention is shown:

[0059] Fig. 9 The seventh connection diagram of a power distribution cabinet in an embodiment of the present invention is shown.

[0060] in, Figure 1 and Figure 2 The corresponding relationship between the reference numerals and the component names is as follows:

[0061] 102' power supply equipment, 104' fuse, 106' load circuit, 108' circuit breaker.

[0062] in, Figures 3 to 9 The corresponding relationship between the reference numerals and the component names is as follows:

[0063] 102 power supply equipment, 104 load, 106 load circuit, 108 protection device, 1082 circuit breaker, 1084 fuse, R1 first resistor, R2 second resistor, L1 first inductor. DETAILED DESCRIPTION

[0064] In order to more clearly understand the above aspects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0065] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0066] In one embodiment of the present application, Figure 3 , Figure 4 and Figure 5 As shown, a power distribution cabinet is provided, including: a power supply device 102; M loads 104, which are located in N load circuits 106 connected to the power supply device 102, each load circuit 106 includes at least one load 104, M is a positive integer greater than or equal to N, and N is greater than or equal to 2; N protection devices 108, the N protection devices 108 correspond one-to-one to the N load circuits 106, and are arranged in the N load circuits 106; wherein the protection device 108 is at least one of a circuit breaker 1082 and a fuse 1084.

[0067] The present invention proposes a power distribution cabinet, which includes a power supply device 102, M loads 104 and N protection devices 108, wherein the M loads 104 are arranged in N load circuits 106 and connected to the power supply device 102 via the N load circuits 106, so that the power supply device 102 can supply power to the M loads 104.

[0068] In this process, the M loads 104 are not concentrated in the same load circuit 106, but are distributed in N load circuits 106. Compared with setting all the loads 104 in the same load circuit 106, distributing the M loads 104 in N load circuits 106 can reduce the capacitance of the load 104, and then when the M loads 104 are started, the starting current can be reduced, reducing the impact of the starting current on the front-end equipment of the power supply device 102, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0069] In addition, a protection device 108 is provided in each load circuit 106. When protected by the protection device 108, the size of the starting current can be further limited to avoid excessive starting current and reduce the impact of the starting current on the front-end equipment of the power supply device 102, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0070] In addition, the protection device 108 can also protect the load 104 in the load circuit 106 where it is located, so as to prevent the load 104 in the load circuit 106 from being damaged by overcurrent due to excessive starting current.

[0071] In some embodiments, M is equal to N, and in this case, each load loop 106 is provided with a load 104 .

[0072] In some embodiments, M is greater than N. In this case, each load loop 106 is provided with at least one load 104 .

[0073] The circuit breaker 1082 refers to a switching device that can close, carry and interrupt the current under normal circuit conditions and can close, carry and interrupt the current under abnormal circuit conditions within a specified time.

[0074] Among them, fuse 1084 refers to an electrical appliance that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value.

[0075] In the above embodiment, by increasing the number of load circuits 106, the load carried by each load circuit 106 is reduced, and the starting current is reduced, so that it is suitable for a distribution cabinet with sufficient space in the cabinet structure to place components.

[0076] In some embodiments, optionally, Figure 6 and Figure 7 As shown, the power distribution cabinet also includes: O first resistors R1, the O first resistors R1 correspond to the O load circuits 106 one by one, and are arranged in the O load circuits 106; wherein O is a positive integer greater than or equal to 1, and O is less than or equal to N.

[0077] In this embodiment, for the scenario where O load loops 106 cannot be delayed in turning on, a first resistor R1 is set in each of O load loops 106 among N load loops 106 so as to change the resistance of each load loop 106. The setting of the first resistor R1 will increase the resistance value of the load loop 106, and thus when the load loop 106 is turned on, the starting current can be lowered. Obviously, when M loads 104 are started and run at the same time, the starting current of the M loads 104 that are started at the same time can be reduced.

[0078] In this embodiment, when the M loads 104 are started, the starting current can be reduced to reduce the impact of the starting current on the front-end device of the power supply device 102, thereby improving the stability of the energy storage device provided with the power distribution cabinet.

[0079] In the above embodiment, the resistance values ​​of any two first resistors R1 among the O first resistors R1 are different.

[0080] In some embodiments, O is equal to N, that is, a first resistor R1 is disposed in each load loop 106 .

[0081] In some embodiments, O is equal to N−1, that is, each load loop 106 in the N−1 load loops 106 is provided with a first resistor R1 .

[0082] In some embodiments, optionally, Figure 6 and Figure 7 As shown, the power distribution cabinet also includes: O first inductors L1, the O first inductors L1 correspond one-to-one to the O load circuits 106, and are arranged in the O load circuits 106; wherein O is a positive integer greater than or equal to 1, and O is less than or equal to N.

[0083] In this embodiment, for the scenario where O load circuits 106 can be delayed in conduction, a first inductor L1 is set in each of O load circuits 106 among N load circuits 106. Since the first inductor L1 is resistive, the first inductor L1 can play a role in smoothing the starting current. Obviously, even if M loads 104 are started at the same time, the starting current of the power supply device 102 can be reduced, and the impact of the starting current on the front-end device of the power supply device 102 can be reduced, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0084] In the above embodiment, the inductance values ​​of any two first inductors L1 among the O first inductors L1 are different.

[0085] In some embodiments, O is equal to N, that is, a first inductor L1 is disposed in each load loop 106 .

[0086] In some embodiments, O is equal to N−1, that is, each of the N−1 load loops 106 is provided with a first inductor L1 .

[0087] In some embodiments, optionally, Figure 6 and Figure 7As shown, the power distribution cabinet also includes: O first resistors R1, the O first resistors R1 correspond one-to-one to the O load circuits 106, and are arranged in the O load circuits 106; O first inductors L1, the O first inductors L1 correspond one-to-one to the O first resistors R1 respectively, and each first inductor L1 is connected in parallel with the corresponding first resistor R1; wherein O is a positive integer greater than or equal to 1, and O is less than or equal to N.

[0088] In this embodiment, a first resistor R1 and a first inductor L1 are set for each of the O load loops 106, wherein the setting of the first resistor R1 can change the resistance of each load loop 106, so that the resistance value of the load loop 106 increases, and then when the load loop 106 is turned on, the starting current can be lowered. Obviously, when M loads 104 are started and run at the same time, the starting current of the M loads 104 that are started at the same time can be reduced.

[0089] While setting the first resistor R1, the first inductor L1 is used to further smooth the starting current, thereby reducing the starting current of the power supply device 102 and reducing the impact of the starting current on the front-end device of the power supply device 102, thereby improving the stability of the energy storage device with a distribution cabinet.

[0090] In the above embodiment, after the load circuit 106 is turned on, since the first inductor L1 is connected in parallel with the first resistor R1, the first inductor L1 can be used to short-circuit the first resistor R1, so that the first resistor R1 is not turned on. In this process, the influence of the first resistor R1 on the load circuit 106 can be reduced, and a smooth startup without reducing power, current and voltage can be achieved, reducing the influence of the starting current on the front-end equipment of the power supply device 102, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0091] In the above embodiment, one or more load circuits 106 can be selected to add a first resistor R1 and a first inductor L1 according to the spatial layout in the distribution cabinet, so as to reduce the manufacturing cost of the distribution cabinet, save space in the distribution cabinet, and provide convenience for the layout, routing and maintenance of the distribution cabinet.

[0092] In this embodiment, for the scenario where the cabinet space of the distribution cabinet is limited and the load capacitance is large, it is only necessary to set the first resistor R1 and the first inductor L1 to adjust the starting current. The first resistor R1 and the first inductor L1 devices themselves are small in size and can be integrated with small devices for use, which is convenient for reducing space occupancy and is beneficial to the space layout in the distribution cabinet. According to the size of the load capacitance, the number of matching loops can be reduced, and the use of devices can be further reduced, which saves costs and structural space, facilitates the wiring layout and use in the cabinet, and reduces the amount of maintenance.

[0093] In some embodiments, the first resistor R1 and the first inductor L1 connected in series and parallel can increase the functionality of the loop by integrating small devices. For example, by adding functions, the first inductor L1 can be monitored after it is turned on, and the loop of the first resistor R1 can be automatically disconnected by setting the time to enhance the integrity of the loop conduction. At the same time, the first resistor R1 can also be monitored to meet the functional requirements of different loops.

[0094] In some embodiments, optionally, Figure 8 and Fig. 9 As shown, the power distribution cabinet further includes: a plurality of second resistors R2, and the second resistors R2 are used to be connected in parallel with the first resistors R1.

[0095] In this embodiment, it can be known from the above that providing the first resistor R1 in the load loop 106 can increase the resistance value of the load loop 106 , thereby reducing the starting current of the loop.

[0096] For usage scenarios with relatively high requirements on instantaneous starting current, loop power and loop current, a second resistor R2 may be provided in parallel with the first resistor R1 so as to adjust the resistance value of the load loop 106 using the second resistor R2.

[0097] In this process, the setting of the second resistor R2 can reduce the resistance value of the load loop 106, thereby reducing the impact caused by the loop output power being too small, and providing support for ensuring the feasibility of the loop function.

[0098] In some embodiments, optionally, the number of second resistors R2 set in parallel with the first target resistor is a first value, and the number of second resistors R2 set in parallel with the second target resistor is a second value; wherein the first target resistor and the second target resistor are any two first resistors R1 among O first resistors R1, and the first value is equal to the second value or the first value is not equal to the second value.

[0099] In this embodiment, in each load loop 106 , the number of second resistors R2 connected in parallel with the first resistor R1 may be the same or different, which may be set according to actual use requirements and will not be described in detail herein.

[0100] In some embodiments, optionally, the power supply device 102 is a DC power supply device or an AC power supply device.

[0101] In this embodiment, the DC power supply device can be understood as a power supply device that provides DC power to the load circuit 106 . Similarly, the AC power supply device can be understood as a power supply device that provides AC power to the load circuit 106 .

[0102] In this embodiment, the power supply device 102 can be selected according to actual usage requirements, so that the power distribution cabinet can meet the usage requirements of different scenarios.

[0103] In some embodiments, the power supply device 102 optionally includes an uninterruptible power supply or a switching power supply.

[0104] In this embodiment, the uninterruptible power supply (UPS) is an uninterruptible power supply including an energy storage device, and is mainly used to provide uninterruptible power supply to some equipment that has high requirements on power supply stability.

[0105] In some embodiments, optionally, the line lengths of different load loops 106 are different.

[0106] In this embodiment, when the protection device 108 is a fuse 1084, since the line lengths of different load circuits 106 are different, the starting currents of the load circuits 106 will be reduced when they are combined together. Therefore, the starting current of the power supply device 102 can be reduced, and the impact of the starting current on the front-end device of the power supply device 102 can be reduced, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0107] When the protection device 108 is the circuit breaker 1082, there is a time difference in closing the circuit breaker 1082. Therefore, the starting current of the power supply device 102 can be reduced, and the impact of the starting current on the front-end equipment of the power supply device 102 can be reduced, thereby improving the stability of the energy storage device equipped with a distribution cabinet.

[0108] In some embodiments, the present invention provides an energy storage device, including: a power distribution cabinet as described in any one of the above items.

[0109] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the textual description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0110] In the text description of the present invention, it is understood that, except for explicit provisions and limitations, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical structure connection or electrical connection; it can be direct connection between the two, or indirect connection between the two through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0111] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0112] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power distribution cabinet, characterized in that: include: Power supply equipment; M loads, located in N load loops connected to the power supply device, each of the load loops including at least one load, M is a positive integer greater than or equal to N, and N is greater than or equal to 2; N protection devices, the N protection devices correspond to the N load circuits one by one and are arranged in the N load circuits; Wherein, the protection device is at least one of a circuit breaker and a fuse.

2. The power distribution cabinet according to claim 1, characterized in that: The power distribution cabinet also includes: O first resistors, the O first resistors correspond to the O load circuits one by one and are arranged in the O load circuits; Wherein, O is a positive integer greater than or equal to 1, and O is less than or equal to N.

3. The power distribution cabinet according to claim 1, characterized in that: The power distribution cabinet also includes: O first inductors, the O first inductors correspond to the O load loops one by one and are arranged in the O load loops; Wherein, O is a positive integer greater than or equal to 1, and O is less than or equal to N.

4. The power distribution cabinet according to claim 1, characterized in that: The power distribution cabinet also includes: O first resistors, the O first resistors correspond to the O load circuits one by one and are arranged in the O load circuits; O first inductors, the O first inductors correspond to the O first resistors one by one, respectively, and each of the first inductors is connected in parallel with the corresponding first resistor; Wherein, O is a positive integer greater than or equal to 1, and O is less than or equal to N.

5. The power distribution cabinet according to claim 2 or 4, characterized in that: The power distribution cabinet also includes: A plurality of second resistors, wherein the second resistors are connected in parallel with the first resistors.

6. The power distribution cabinet according to claim 5, characterized in that: The number of the second resistors arranged in parallel with the first target resistor is a first value, and the number of the second resistors arranged in parallel with the second target resistor is a second value; The first target resistance and the second target resistance are any two of the O first resistances, and the first value is equal to the second value or the first value is not equal to the second value.

7. The power distribution cabinet according to any one of claims 1 to 4, characterized in that: The power supply device is a DC power supply device or an AC power supply device.

8. The power distribution cabinet according to any one of claims 1 to 4, characterized in that: The power supply device includes an uninterruptible power supply or a switching power supply.

9. The power distribution cabinet according to any one of claims 1 to 4, characterized in that: The line lengths of different load loops are different.

10. An energy storage device, characterized in that: include: A power distribution cabinet as claimed in any one of claims 1 to 9.

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