Direct-current power control box

Abstract

The utility model relates to an optical storage and charging detection system, in particular to a direct-current power control box, which comprises a control box body, a control loop is arranged on the control box body and comprises more than three input copper bars and more than three output copper bars, any two input copper bars are connected through a power control relay, and the power control relay is connected with the control loop. And the more than three input copper bars are connected with the more than three output copper bars in a one-to-one correspondence manner through the output control relays. The DC power control box provided by the utility model can adjust the on-off of the power control relay and the output control relay according to the power output requirement, thereby distributing the output power of the optical storage charging detection system and controlling the output power to be supplied to the charging pile.

Description

Technical Field

[0001] The utility model relates to a photovoltaic energy storage charging and inspection system, in particular to a DC power control box. Background Technique

[0002] Lithium battery energy storage technology is a great boost to the popularization of electric vehicles. Professional and fast charging and after-sales maintenance services are necessary conditions for the market-oriented promotion of electric vehicles. The construction of an integrated photovoltaic energy storage charging and inspection intelligent charging station is the best solution at present. The integrated photovoltaic energy storage charging and inspection intelligent charging station uses advanced lithium iron phosphate batteries and an intelligent platform product integrating three functions of energy storage service, electric vehicle charging service, and electric vehicle inspection service. At the same time, it is compatible with the access of renewable energy, enabling the power grid, renewable energy, energy storage system, and charging facilities to truly form an intelligent microgrid system under the control and management of the function management system. The photovoltaic energy storage charging and inspection system can refer to the Chinese utility model patent with the application number CN202321902221.9 and the name of a micro photovoltaic energy storage charging and inspection system. The total output power of the photovoltaic energy storage charging and inspection system is relatively large, and one system can drive multiple charging piles. However, at present, there are disadvantages in the unreasonable distribution and control of the total output power of the photovoltaic energy storage charging and inspection system. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a DC power control box, which can distribute the output power of the photovoltaic energy storage charging and inspection system and supply it to the charging pile.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a DC power control box, including a control box body, on which a control circuit is provided. The control circuit includes more than three input copper bars and more than three output copper bars. Any two input copper bars are connected through a power control relay, and each of the more than three input copper bars is connected to one of the more than three output copper bars through an output control relay in a one-to-one correspondence.

[0005] Further, the control circuit includes a positive output control circuit and a negative output control circuit, and both the positive output control circuit and the negative output control circuit include more than three input copper bars and more than three output copper bars.

[0006] Further, the positive output control circuit further includes a fuse, and the fuse is arranged between the output control relay and the output copper bar.

[0007] Further, the control box body includes a first mounting plate, a connecting plate, and a second mounting plate. The first mounting plate and the second mounting plate are arranged oppositely, and the first mounting plate is connected to the second mounting plate through the connecting plate. The positive output control circuit is arranged on the first mounting plate, and the negative output control circuit is arranged on the second mounting plate.

[0008] Further, the first mounting plate and the second mounting plate are provided with keyholes for mounting the input copper busbar, the power control relay, the output control relay, and the output copper busbar.

[0009] Further, the positive output control loop is arranged on the end face of the first mounting plate facing the second mounting plate, and the negative output control loop is arranged on the end face of the second mounting plate facing the first mounting plate. There is a gap between the positive output control loop and the negative output control loop.

[0010] Further, the number of the input copper busbars, the power control relays, the output control relays, and the output copper busbars is three each.

[0011] Further, the input copper busbar is an L-shaped copper busbar.

[0012] Further, the power control relays are respectively locked to two input copper busbars, and the output control relays are respectively locked to the input copper busbar and the output copper busbar.

[0013] Further, it further includes wires. The input copper busbar is connected to the DC power module of the energy storage system through a group of wires, and the output copper busbar is connected to the input end of the charging pile through a group of wires.

[0014] The beneficial effect of the present utility model is as follows: A DC power control box. The control loop installed on the control box body includes an input copper busbar, a power control relay, an output copper busbar, and an output control relay. The on-off of the power control relay and the output control relay is adjusted according to the power output requirement, so as to distribute and control the output power of the photovoltaic energy storage charging and inspection system to supply the charging pile. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the DC power control box;

[0016] Figure 2 is another schematic structural diagram of the DC power control box;

[0017] Figure 3 is a schematic structural diagram of the positive output control loop;

[0018] Figure 4 is a schematic structural diagram of the negative output control loop;

[0019] Label Description:

[0020] 1. Control box body; 11. First mounting plate; 12. Connecting plate; 13. Second mounting plate; 14. Lock hole; 2. Control circuit; 21. Output positive control circuit; 22. Output negative control circuit; 3. Input copper bar; 31. First copper bar; 32. Second copper bar; 33. Third copper bar; 4. Output copper bar; 41. Fourth copper bar; 42. Fifth copper bar; 43. Sixth copper bar; 5. Power control relay; 51. First relay; 52. Second relay; 53. Third relay; 6. Output control relay; 61. Fourth relay; 62. Fifth relay; 63. Sixth relay; 7. First fuse; 71. Second fuse; 72. Third fuse. Detailed implementation manner

[0021] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the implementation manners and with reference to the drawings.

[0022] Please refer to Figures 1 to 4 As shown, a DC power control box of the present utility model includes a control box body, and a control circuit is provided on the control box body. The control circuit includes more than three input copper bars and more than three output copper bars. Any two input copper bars are connected through a power control relay, and each of the more than three input copper bars is connected to one of the more than three output copper bars through an output control relay in one-to-one correspondence.

[0023] From the above description, it can be seen that the beneficial effect of the present utility model is: a DC power control box, the control circuit installed on the control box body includes an input copper bar, a power control relay, an output copper bar and an output control relay. The on-off of the power control relay and the output control relay is adjusted according to the power output requirement, so as to distribute and control the output power of the optical storage charging and inspection system to supply the charging pile.

[0024] In an optional embodiment, the control circuit includes an output positive control circuit and an output negative control circuit, and both the output positive control circuit and the output negative control circuit include more than three input copper bars and more than three output copper bars.

[0025] In an optional embodiment, the output positive control circuit further includes a fuse, and the fuse is arranged between the output control relay and the output copper bar.

[0026] From the above description, it can be seen that compared with the output negative control circuit, the output positive control circuit adds a protective fuse.

[0027] In an optional embodiment, the control box body includes a first mounting plate, a connecting plate and a second mounting plate. The first mounting plate and the second mounting plate are arranged oppositely, and the first mounting plate is connected to the second mounting plate through the connecting plate. The output positive control circuit is arranged on the first mounting plate, and the output negative control circuit is arranged on the second mounting plate.

[0028] In an alternative embodiment, the first mounting plate and the second mounting plate are provided with keyholes for mounting input copper bars, power control relays, output control relays and output copper bars.

[0029] In an alternative embodiment, the positive output control loop is arranged on the end face of the first mounting plate facing the second mounting plate, the negative output control loop is arranged on the end face of the second mounting plate facing the first mounting plate, and there is a gap between the positive output control loop and the negative output control loop.

[0030] As can be seen from the above description, the control box body is designed with a U-shaped structure, has a large communication range with the outside world, can achieve better heat dissipation conditions. At the same time, the open structure also facilitates installation and maintenance, and the disassembly process can be minimized during installation and maintenance.

[0031] In an alternative embodiment, the number of input copper bars, power control relays, output control relays and output copper bars is three each.

[0032] In an alternative embodiment, the input copper bar is an L-shaped copper bar.

[0033] In an alternative embodiment, the power control relays are respectively locked to two input copper bars, and the output control relays are respectively locked to the input copper bars and the output copper bars.

[0034] In an alternative embodiment, it further includes wires. The input copper bar is connected to the DC power module of the energy storage system through a set of wires, and the output copper bar is connected to the input end of the charging pile through a set of wires.

[0035] Please refer to Figures 1 to 4 As shown, Embodiment 1 of the present invention is: a DC power control box, including a control box body, the control box body is provided with a control loop, the control loop includes more than three input copper bars and more than three output copper bars, and any two input copper bars are connected through a power control relay, and each of the more than three input copper bars is connected to each of the more than three output copper bars through an output control relay in one-to-one correspondence.

[0036] The control loop includes a positive output control loop and a negative output control loop. Both the positive output control loop and the negative output control loop include more than three input copper bars and more than three output copper bars. The positive output control loop further includes fuses, which are arranged between the output control relays and the output copper bars. The control box body includes a first mounting plate, a connecting plate and a second mounting plate. The first mounting plate and the second mounting plate are arranged opposite to each other. The first mounting plate is connected to the second mounting plate through the connecting plate. The positive output control loop is arranged on the first mounting plate, and the negative output control loop is arranged on the second mounting plate. The first mounting plate and the second mounting plate are provided with lock holes for mounting the input copper bars, power control relays, output control relays and output copper bars. The positive output control loop is arranged on the end face of the first mounting plate facing the second mounting plate, and the negative output control loop is arranged on the end face of the second mounting plate facing the first mounting plate. There is a gap between the positive output control loop and the negative output control loop. The number of the input copper bars, power control relays, output control relays and output copper bars is three each.

[0037] The input copper bars are L-shaped copper bars. The power control relays are respectively locked to two input copper bars, and the output control relays are respectively locked to the input copper bars and the output copper bars. It further includes wires. The input copper bars are connected to the DC power module of the energy storage system through a group of wires, and the output copper bars are connected to the input end of the charging pile through a group of wires.

[0038] The working principle of this embodiment is as follows: The input copper bars include a first copper bar, a second copper bar and a third copper bar. The output copper bars include a fourth copper bar, a fifth copper bar and a sixth copper bar. The power control relays include a first relay, a second relay and a third relay. The output control relays include a fourth relay, a fifth relay and a sixth relay. The fuses include a first fuse, a second fuse and a third fuse.

[0039] The output power of the DC power module of the photovoltaic energy storage charging and inspection system is connected to the first copper bar, the second copper bar and the third copper bar in the form of wires. The fourth copper bar, the fifth copper bar and the sixth copper bar are connected to the input wiring position of the charging pile. When only the fourth copper bar has a power output requirement and the power requirement is the largest, control the first relay, the second relay, the third relay and the fourth relay to be attracted and conducted. At this time, the three-way power input converges on the fourth copper bar for one-way output, and the single-way output power is the largest. The same applies when only the fifth copper bar or the sixth copper bar has a power output.

[0040] When only the fifth copper bar and the sixth copper bar have a power output requirement and the power output of the fifth copper bar is relatively high, control the fourth relay, the third relay, the fifth relay and the sixth relay to be attracted and conducted. At this time, the fifth copper bar outputs 2 / 3 of the total power, and the sixth copper bar outputs 1 / 3 of the total power. The same applies when the fourth copper bar and the sixth copper bar or the fourth copper bar and the fifth copper bar have a power requirement.

[0041] When there are power output requirements for the fourth copper row, the fifth copper row, and the sixth copper row, control the fourth relay, the fifth relay, and the sixth relay to be energized.

[0042] In summary, the control circuit installed on the control box body of the present utility model includes an input copper row, a power control relay, an output copper row, and an output control relay. The on / off of the power control relay and the output control relay are adjusted according to the power output requirements, so as to distribute and control the output power of the photovoltaic energy storage charging and inspection system to supply the charging pile.

[0043] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A DC power control box, characterized in that: It includes a control box body, which is provided with a control circuit. The control circuit includes more than three input copper bars and more than three output copper bars. Any two input copper bars are connected through a power control relay, and the more than three input copper bars are connected to the more than three output copper bars one by one through an output control relay.

2. The DC power control box according to claim 1, characterized in that: The control loop includes an output positive control loop and an output negative control loop, and both the output positive control loop and the output negative control loop include more than three input copper bars and more than three output copper bars.

3. The DC power control box according to claim 2, characterized in that: The output positive control circuit also includes a fuse, which is arranged between the output control relay and the output copper busbar.

4. The DC power control box according to claim 2, characterized in that: The control box body includes a first mounting plate, a connecting plate and a second mounting plate. The first mounting plate and the second mounting plate are arranged opposite to each other. The first mounting plate is connected to the second mounting plate through the connecting plate. The output positive control loop is arranged on the first mounting plate, and the output negative control loop is arranged on the second mounting plate.

5. The DC power control box according to claim 4, characterized in that: The first mounting plate and the second mounting plate are provided with locking holes for mounting the input copper busbar, the power control relay, the output control relay and the output copper busbar.

6. The DC power control box according to claim 4, characterized in that: The output positive control loop is arranged on the end surface of the first mounting plate facing the second mounting plate, and the output negative control loop is arranged on the end surface of the second mounting plate facing the first mounting plate, with a gap between the output positive control loop and the output negative control loop.

7. The DC power control box according to claim 1, characterized in that: The number of input copper busbars, power control relays, output control relays and output copper busbars are three each.

8. The DC power control box according to claim 1, characterized in that: The input copper busbar is an L-shaped copper busbar.

9. The DC power control box according to claim 1, characterized in that: The power control relay is locked with the two input copper bars respectively, and the output control relay is locked with the input copper bar and the output copper bar respectively.

10. The DC power control box according to claim 1, characterized in that: It also includes wires. The input copper bus is connected to the DC power module of the energy storage system through a group of wires, and the output copper bus is connected to the input end of the charging pile through a group of wires.

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