Mobile energy storage power van with switching module

Abstract

The utility model relates to a mobile energy storage power van with a switching module, which comprises a compartment, and a battery pack, a BMS cabinet, a PSC cabinet, a transformer, an STS cabinet, a cable reel and a power interface which are arranged in the compartment, the STS cabinet is provided with the switching module, the switching module is provided with an input end, a load end and a standby end, the input end and the load end are externally connected with a mains supply and a load respectively through the cable reel, and the standby end is provided with a standby end. The standby end is electrically connected with the battery pack through the transformer, the PSC cabinet and the BMS cabinet in sequence, and the BMS cabinet is electrically connected with a power interface used for being externally connected with a charging pile. The mobile intelligent energy storage power supply is mainly used as a mobile intelligent energy storage power supply for emergency rescue, power protection, power supply and the like, can be used for renting, solves the problem that part of enterprises have no UPS equipment, saves the power utilization cost of the enterprises, and when a preferred power supply fails, the STS cabinet is used for emergency switching to supply power by the battery pack, so that load outage is not caused; the problem of a standby power supply when a commercial power circuit fails and needs to be repaired or maintained can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent power supply, in particular to a mobile energy storage power supply vehicle with a switching module. Background Art

[0002] A mobile energy storage power supply vehicle is an emergency power supply vehicle equipped with a power supply device. It has the characteristics of fast mobility, low noise operation, easy operation, and all-weather operation. It is widely used in places such as electricity, communications, and rescue where power outages will have a serious impact, as a mobile emergency backup power supply. When the backup power supply of a traditional mobile energy storage power supply vehicle is connected to the load, in order to ensure safety during switching, it is necessary to first cut off the power and then connect the backup power supply. This method is not suitable for important load circuits that cannot be powered off in a short period of time, such as in the medical field and the communication field, and has certain limitations. Summary of the invention

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a mobile energy storage power supply vehicle with a switching module, including a carriage, and a battery pack, a BMS cabinet, a PSC cabinet, a transformer, an STS cabinet, a cable reel and a power interface arranged in the carriage, the STS cabinet is provided with a switching module, the switching module is provided with an input end, a load end and a standby end, the input end and the load end are respectively connected to the mains and the load through the cable reel, the standby end is electrically connected to the battery pack through the transformer, the PSC cabinet and the BMS cabinet in turn, and the BMS cabinet is electrically connected to a power interface for an external charging pile.

[0004] By adopting the above technical scheme, the utility model is mainly used as a mobile intelligent energy storage power supply for emergency rescue, power protection, power supply, etc., and can be used for leasing to solve the problem that some enterprises do not have UPS equipment and save the electricity cost of enterprises; the mains power is used as the preferred power supply, and the battery pack is used as the backup power supply. Under normal circumstances, the mains power is divided into two routes through the STS cabinet, one route is connected to the load through the cable reel, and the other route is used to charge the battery pack through the transformer, PSC cabinet, and BMS cabinet. At the same time, the battery pack can be used as a 30kw on-board DC charger to charge new energy vehicles through the power interface; when the preferred power supply fails, the STS cabinet is used for emergency switching to the battery pack for power supply, and the switching time between the preferred power supply and the backup power supply is 6ms, which will not cause the load to be powered off. The electric energy in the battery pack is converted into AC power through the PSC cabinet, and the voltage is boosted by the transformer to provide emergency power supply to the load, which can solve the backup power supply problem when the mains circuit fails and needs to be repaired or maintained, and greatly improve the reliability of power supply to important loads.

[0005] The utility model is further configured such that the switching module includes an input circuit breaker a, an input circuit breaker b, an output circuit breaker e and a static switch, the input end and the standby end are electrically connected to the static switch through the input circuit breaker a and the input circuit breaker b respectively, and the static switch is electrically connected to the load end through the output circuit breaker e.

[0006] By adopting the above technical solution, the STS cabinet controls the connection between the AC power, battery pack, load and power supply system through input circuit breaker a, input circuit breaker b and output circuit breaker e respectively; when the preferred power supply is normally supplied, the preferred power supply enters from the input circuit breaker a and flows from the input circuit breaker b and output circuit breaker e to the battery pack and load respectively through the static switch; when the preferred power supply stops supplying, the static switch is switched so that the power of the battery pack flows from the input circuit breaker b through the static switch and from the output circuit breaker e to the load. If necessary, the input circuit breaker a can be closed to transmit power in reverse to the AC power, which has the technical effect of peak shaving and valley filling and reduces the pressure on power consumption.

[0007] The utility model is further configured that the switching module further includes a bypass circuit breaker c and a bypass circuit breaker d, and the input end and the standby end are electrically connected to the load end through the bypass circuit breaker c and the bypass circuit breaker d respectively.

[0008] With the above technical solution, bypass circuit breaker c and bypass circuit breaker d are manually controlled switches. The load is directly connected to the AC power supply and the battery pack through bypass circuit breaker c and bypass circuit breaker d respectively. With accessories such as static switches, the STS cabinet can be switched between the primary and backup power supplies manually or automatically without interruption.

[0009] The utility model is further configured that a thermal management box for heat dissipation is provided on one side of the vehicle compartment close to the battery pack, and the battery pack is electrically connected to the thermal management box.

[0010] With the above technical solution, the power of the thermal management box is provided by the battery pack, and the thermal management box uses liquid cooling temperature control to dissipate heat for the battery pack. The thermal management box is also equipped with air cooling equipment to achieve heat exchange of the battery pack, so that the battery pack can work at its best energy efficiency.

[0011] The utility model is further configured that a compartment door is provided at the rear of the compartment, the cable reel is provided at the compartment door, and a skirt cabinet is provided at one side of the compartment located at the cable reel, and the power interface is provided in the skirt cabinet.

[0012] By adopting the above technical solution, the wire harness of the cable reel is arranged in a 2x4 plane at the car door, and the cable reel and the power interface are both located at the edge of the car, so that the staff does not need to enter the car to facilitate power supply.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is mainly used as a mobile intelligent energy storage power supply for emergency rescue, power protection, power supply, etc. It can be used for leasing, solving the problem that some enterprises do not have UPS equipment, saving the enterprise's electricity costs. When the preferred power supply fails, the STS cabinet is urgently switched to the battery pack for power supply, and the switching time between the preferred power supply and the backup power supply is 6ms, which will not cause load power outages. It can solve the backup power supply problem when the mains circuit fails and needs to be repaired or maintained, greatly improving the reliability of power supply to important loads.

[0015] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic plan view of the interior of the carriage of the utility model;

[0017] Figure 2 It is the circuit principle diagram of the utility model;

[0018] Figure 3 This is a circuit schematic diagram of the switching module of the utility model;

[0019] Figure 4 It is a partial enlarged view of the side of the carriage of the utility model;

[0020] Among them: 1-carriage, 2-battery pack, 3-BMS cabinet, 4-PSC cabinet, 5-transformer, 6-STS cabinet, 7-cable reel, 8-power interface, 9-switching module, 10-thermal management box, 11-input end, 12-load end, 13-standby end, 14-input circuit breaker a, 15-input circuit breaker b, 16-bypass circuit breaker c, 17-bypass circuit breaker d, 18-output circuit breaker e, 19-static switch, 21-carriage door, 22-skirt cabinet; DETAILED DESCRIPTION

[0021] like Figure 1 , 2 As shown, this embodiment provides a mobile energy storage power supply vehicle with a switching module, including a carriage 1, and a battery pack 2, a BMS cabinet 3, a PSC cabinet 4, a transformer 5, an STS cabinet 6, a cable reel 7 and a power interface 8 arranged in the carriage 1. The STS cabinet 6 is provided with a switching module 9, and the switching module 9 is provided with an input end 11, a load end 12 and a standby end 13. The input end 11 and the load end 12 are respectively connected to the mains and the load through the cable reel 7. The standby end 13 is electrically connected to the battery pack 2 through the transformer 5, the PSC cabinet 4, and the BMS cabinet 3 in turn, and the BMS cabinet 3 is electrically connected to a power interface 8 for an external charging pile.

[0022] Combination Figure 3As shown, in this embodiment, the switching module 9 includes an input circuit breaker a14, an input circuit breaker b15, an output circuit breaker e18 and a static switch 19. The input end 11 and the standby end 13 are electrically connected to the static switch 19 through the input circuit breaker a14 and the input circuit breaker b15, respectively. The static switch 19 is electrically connected to the load end 12 through the output circuit breaker e18. The STS cabinet 6 controls the mains, the battery pack 2, the load and the power supply system through the input circuit breaker a14, the input circuit breaker b15 and the output circuit breaker e18. Connection; when the preferred power supply is supplying power normally, the preferred power supply enters from the input circuit breaker a14 through the static switch 19 and flows from the input circuit breaker b15 and the output circuit breaker e18 to the battery pack 2 and the load respectively; when the preferred power supply stops supplying power, it is switched through the static switch 19 so that the power of the battery pack 2 flows from the input circuit breaker b15 through the static switch 19 and the output circuit breaker e18 to the load. If necessary, the input circuit breaker a14 can be closed to transmit power in reverse to the mains, which has the technical effect of peak shaving and valley filling and reduces the pressure on power consumption.

[0023] In this embodiment, the switching module 9 also includes a bypass circuit breaker c16 and a bypass circuit breaker d17. The input end 11 and the backup end 13 are electrically connected to the load end 12 through the bypass circuit breaker c16 and the bypass circuit breaker d17 respectively. The bypass circuit breaker c16 and the bypass circuit breaker d17 are manually controlled switches. The load is directly connected to the AC power supply and the battery pack 2 through the bypass circuit breaker c16 and the bypass circuit breaker d17 respectively. In combination with accessories such as the static switch 19, the STS cabinet 6 can perform uninterrupted switching between the primary and backup power supplies manually or automatically.

[0024] In this embodiment, a thermal management box 10 for heat dissipation is provided on one side of the vehicle compartment 1 close to the battery pack 2, and the battery pack 2 is electrically connected to the thermal management box 10. The power supply of the thermal management box 10 is provided by the battery pack 2. The thermal management box 10 uses liquid cooling temperature control to dissipate heat for the battery pack 2, and the thermal management box 10 is equipped with air cooling equipment to realize heat exchange of the battery pack 2, so that the battery pack 2 can work at the best energy efficiency.

[0025] Combination Figure 4 As shown, in this embodiment, a carriage door 21 is provided at the rear of the carriage 1, a cable reel 7 is provided at the carriage door 21, and a skirt cabinet 22 is provided on one side of the cable reel 7 of the carriage 1, a power interface 8 is provided in the skirt cabinet 22, and the wiring harness of the cable reel 7 is arranged in a 2x4 plane at the carriage door 21, and the cable reel 7 and the power interface 8 are both provided at the edge of the carriage 1, so that the staff does not need to enter the carriage 1 for easy power supply.

[0026] The working principle of the utility model is that the mains power is used as the preferred power source and the battery pack 2 is used as the backup power source. Under normal circumstances, the mains power is divided into two paths through the STS cabinet 6, one path is connected to the load through the cable reel 7, and the other path is used to charge the battery pack 2 through the transformer 5, the PSC cabinet 4, and the BMS cabinet 3 in turn. At the same time, the battery pack 2 can be used as a 30kw on-board DC charger to charge the new energy vehicle through the power interface 8; when the preferred power source fails, the battery pack 2 is used for emergency power supply through the STS cabinet 6, and the static switch 19 adopts a delayed topology connection architecture, which can achieve the accuracy of the switching time and the load transfer, and the backup power source is connected to the load in a "first break and then connect" manner, and the fastest disconnection time between the preferred power source and the backup power source is 6ms, which will not cause the load to be powered off. The electric energy in the battery pack 2 is converted into AC power through the PSC cabinet 4, and the voltage is boosted by the transformer 5 to provide emergency power supply to the load, which can solve the backup power supply problem when the mains power circuit fails and needs to be repaired or maintained, and greatly improves the reliability of power supply to important loads.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mobile energy storage power supply vehicle with a switching module, characterized in that: The invention comprises a carriage (1), and a battery pack (2), a BMS cabinet (3), a PSC cabinet (4), a transformer (5), an STS cabinet (6), a cable reel (7) and a power interface (8) arranged in the carriage (1); the STS cabinet (6) is provided with a switching module (9); the switching module (9) is provided with an input end (11), a load end (12) and a standby end (13); the input end (11) and the load end (12) are respectively connected to the mains and the load through the cable reel (7); the standby end (13) is electrically connected to the battery pack (2) through the transformer (5), the PSC cabinet (4) and the BMS cabinet (3) in sequence; and the BMS cabinet (3) is electrically connected to a power interface (8) for connecting to an external charging pile.

2. A mobile energy storage power supply vehicle with a switching module according to claim 1, characterized in that: The switching module (9) comprises an input circuit breaker a (14), an input circuit breaker b (15), an output circuit breaker e (18) and a static switch (19); the input end (11) and the standby end (13) are electrically connected to the static switch (19) via the input circuit breaker a (14) and the input circuit breaker b (15), respectively; and the static switch (19) is electrically connected to the load end (12) via the output circuit breaker e (18).

3. A mobile energy storage power supply vehicle with a switching module according to claim 2, characterized in that: The switching module (9) further comprises a bypass circuit breaker c (16) and a bypass circuit breaker d (17); the input end (11) and the standby end (13) are electrically connected to the load end (12) via the bypass circuit breaker c (16) and the bypass circuit breaker d (17), respectively.

4. A mobile energy storage power supply vehicle with a switching module according to claim 1, characterized in that: A heat management box (10) for heat dissipation is provided on one side of the vehicle compartment (1) close to the battery pack (2), and the battery pack (2) is electrically connected to the heat management box (10).

5. The mobile energy storage power supply vehicle with a switching module according to claim 1, characterized in that: The rear part of the carriage (1) is provided with a carriage door (21), the cable reel (7) is arranged at the carriage door (21), and the carriage (1) is provided with a skirt cabinet (22) on one side of the cable reel (7), and the power interface (8) is arranged in the skirt cabinet (22).

Images