Air-cooled high-voltage box charging filtering unit structure system

Abstract

The utility model relates to the technical field of energy storage, in particular to an air-cooled high-voltage box charging and filtering unit structure system, which is characterized in that a fan bracket, a reactor bracket, a direct-current charging resistor and a contactor are respectively and fixedly connected with a bottom plate of a high-voltage box shell, a direct-current filtering reactor is arranged inside the reactor bracket, and a cooling fan is arranged inside the fan bracket; and the cooling fan is close to the front panel of the high-voltage box shell and is used for cooling the direct-current filter reactor. The high-voltage box has the advantages that the high-voltage box and the charging filtering unit are integrated, the layout is compact, and the space utilization rate of the high-voltage box is improved; internal direct wiring of the high-voltage box and the charging filtering unit simplifies external wiring harnesses and shortens maintenance time; the cooling fan is used for cooling the direct-current filter reactor, so that the structure of the whole machine is simplified; the heat dissipation fan is arranged in the fan bracket and is close to the front panel of the high-voltage box shell, so that the heat dissipation effect is obvious; the supporting frame comprises two layers and is high in strength.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, and in particular to a wind-cooled high-voltage box charging and filtering unit structure system. Background Technology

[0002] With the continuous growth of energy demand and the transformation of the energy structure, high-voltage energy storage equipment is being used more and more widely in power systems. High-voltage energy storage technology, with its advantages of high energy storage efficiency, long lifespan, and low cost, is gradually becoming a research hotspot in the field of electrical energy storage. However, many manufacturers adopt a separate design for the high-voltage box and the charging and filtering unit. This results in complex and disordered external wiring between the high-voltage box and the charging and filtering unit. Furthermore, the large size of the high-voltage box and the charging and filtering unit occupy a lot of space, and the complex wiring distribution affects the heat dissipation of electrical components, reducing the service life of the high-voltage box. Utility Model Content

[0003] The purpose of this utility model is to provide a wind-cooled high-voltage box charging and filtering unit structure system, which integrates the high-voltage box and the charging and filtering unit into one, with a compact component layout, saving installation space, good heat dissipation, and convenient installation and maintenance.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A wind-cooled high-voltage box charging and filtering unit structure system includes a DC filter reactor 7, a DC charging resistor 17, a contactor 18, a cooling fan 10, a reactor bracket 19, a fan bracket 8, a copper busbar, and a Hall sensor. The fan bracket 8, the reactor bracket 19, the DC charging resistor 17, and the contactor 18 are fixedly connected to the bottom plate of the high-voltage box housing 2. The DC filter reactor 7 is installed inside the reactor bracket 19. The cooling fan 10 is installed inside the fan bracket 8 and close to the front panel 3 of the high-voltage box housing 2. The cooling fan 10 is used to dissipate heat from the DC filter reactor 7.

[0006] A copper busbar is provided between the DC filter reactor 7, the DC charging resistor 17, the contactor 18, the DC circuit breaker 9, the fuse 5, and the Hall sensor.

[0007] Both the reactor bracket 19 and the fan support frame 8 are made of aluminum-zinc coated steel sheets, and the outer layer of the reactor bracket 19 is covered with an insulating board.

[0008] The DC charging resistor 17 is located on the right side of the bottom plate of the high voltage box housing 2, and the reactor bracket 19 is located on the left side of the bottom plate of the high voltage box housing 2.

[0009] It also includes a switching power supply 6, a DC circuit breaker 9, a fuse 5, a battery management system (BMS) 20, a switch 15, a miniature circuit breaker 14, a connector 13, secondary terminals 12, and an inverter unit adapter board 16. The switching power supply 6 and the fuse 5 are respectively installed on the outside of the reactor bracket 19 and are fixedly connected to the top of the reactor bracket 19. The DC circuit breaker 9, the switch 15, the miniature circuit breaker 14, the inverter unit adapter board 16, the connector 13, and the secondary terminals 12 are respectively installed on the front panel 3 of the high-voltage box housing 2. The battery management system (BMS) 20 is suspended on the inner wall of the high-voltage box.

[0010] The front panel 3 of the high-pressure box housing 2 is provided with heat dissipation holes.

[0011] DC circuit breaker 9, switch 15, miniature circuit breaker 14, inverter unit adapter board 16, connector 13, and secondary terminal 12 are all connected to copper busbars.

[0012] Connector 13, miniature circuit breaker 14, inverter unit adapter board 16 are installed sequentially from top to bottom on one side of the front panel 3 of the high voltage box housing 2. Switch 15 is located on the right side of inverter unit adapter board 16. Secondary terminal 12 is installed on the upper part of the front panel 3 of the high voltage box housing 2. DC circuit breaker 9 is installed on the other side of the front panel 3 of the high voltage box housing 2.

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

[0014] 1. The high-voltage box and charging filter unit are combined into one, resulting in a compact layout and improved space utilization of the high-voltage box;

[0015] 2. Direct wiring inside the high-voltage box and charging filter unit simplifies the external wiring harness and shortens maintenance time;

[0016] 3. A cooling fan is used to dissipate heat from the DC filter reactor, simplifying the overall structure of the unit;

[0017] 4. The cooling fan is installed inside the fan bracket and close to the front panel of the high-voltage box housing, which has a significant heat dissipation effect; both the reactor bracket 19 and the fan support frame 8 are made of aluminum-zinc coated plate, and the outer layer of the reactor bracket 19 is covered with an insulating plate to ensure that the components are insulated from the metal box, providing good support and high strength. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the high-voltage box;

[0019] Figure 2 This is a schematic diagram of the internal structure of the high-voltage box;

[0020] Figure 3 This is a schematic diagram of the reactor section of the high-voltage box;

[0021] Figure 4 This is a schematic diagram of the front panel structure of the high-voltage box;

[0022] Figure 5 This is a schematic diagram of the resistor section of the high-voltage box;

[0023] Figure 6 This is a schematic diagram of the high-voltage box charging filter unit.

[0024] In the diagram: 1-High voltage box; 2-House; 3-Front panel; 4-Back panel; 5-Fuse; 6-Switching power supply; 7-DC filter reactor; 8-Fan bracket; 9-DC circuit breaker; 10-Cooling fan; 11-Cooling fan mounting shell; 12-Secondary terminal; 13-Connector; 14-Miniature circuit breaker; 15-Switch; 16-Inverter unit adapter board; 17-DC charging resistor; 18-Contactor; 19-Reactor bracket; 20-Battery Management System (BMS). Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0026] The following embodiments are implemented based on the technical solution of this utility model, providing detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments. Unless otherwise specified, the methods used in the following embodiments are conventional methods.

[0027] Example 1

[0028] The high-voltage box includes a cooling fan 10, a reactor bracket 19, a fan bracket 8, copper busbars, Hall effect sensors, a switching power supply 6, a DC circuit breaker 9, a fuse 5, a battery management system (BMS) 20, a switch 15, a miniature circuit breaker 14, a connector 13, secondary terminals 12, and an inverter unit adapter board 16. The charging and filtering unit includes a contactor 18, a DC filter reactor 7, and a DC charging resistor 17. Before the modification, the high-voltage box and the DC filter reactor 7 were arranged in two separate modules. Due to the large size of the high-voltage box and the charging and filtering unit, the external wiring of the high-voltage box and the charging and filtering unit was messy. After the modification, the high-voltage box and the charging and filtering unit are combined into one module (high-voltage box 1), saving installation space. A wind-cooled high-voltage box charging and filtering unit structure system is described below. Figures 1-6The fan bracket 8, reactor bracket 19, DC charging resistor 17, and contactor 18 are fixedly connected to the base plate of the high-voltage box housing 2. The DC filter reactor 7 is installed inside the reactor bracket 19. The cooling fan 10 is installed inside the fan bracket 8 and close to the front panel 3 of the high-voltage box housing 2. The cooling fan 10 is used to dissipate heat from the DC filter reactor 7. A copper busbar is provided between the DC filter reactor 7, DC charging resistor 17, contactor 18, DC circuit breaker 9, fuse 5, and Hall sensor. Both the reactor bracket 19 and the fan support bracket 8 are made of aluminum-zinc coated steel, and the outer layer of the reactor bracket 19 is covered with an insulating board. The DC filter reactor 7, DC charging resistor 17, contactor 18, DC circuit breaker 9, fuse 5, and Hall sensor are connected to the copper busbar respectively; the DC charging resistor 17 is located on the right side of the bottom plate of the high voltage box housing 2, the reactor bracket 19 is located on the left side of the bottom plate of the high voltage box housing 2, and the reactor bracket 19 is located on one side of the bottom plate of the high voltage box housing 2. The front panel 3 of the high voltage box housing 2 is provided with heat dissipation holes, which are compact and have obvious heat dissipation effect.

[0029] The switching power supply 6 and fuse 5 are respectively installed on the upper part of the reactor bracket 19 and are fixedly connected to the upper part of the reactor bracket 19 by bolts. The DC filter reactor 7 dissipates heat during operation. The switching power supply 6, fuse 5 and DC filter reactor 7 are distributed as shown in the figure. Figure 2 and Figure 5 To ensure the service life of the switching power supply 6 and fuse 5; DC circuit breaker 9, switch 15, miniature circuit breaker 14, inverter unit adapter board 16, connector 13, and secondary terminal 12 are respectively installed on the front panel 3 of the high-voltage box housing 2, and the battery management system (BMS) is suspended on the outer wall of the high-voltage box side for convenient wiring and space saving; DC circuit breaker 9 is used to cut off the high-voltage electricity of the battery clusters in series, switch 15 is used to connect to the battery management system (BMS), miniature circuit breaker 14 is used to cut off the control circuit electricity on the high-voltage box side, and inverter unit adapter board 16 is connected to the external power unit for signal conversion between the battery management system (BMS) and the power unit. Connector 13, miniature circuit breaker 14, and inverter unit adapter board 16 are installed sequentially from top to bottom on one side of the front panel 3 of the high-voltage box housing 2. Switch 15 is located on the right side of inverter unit adapter board 16. Secondary terminal 12 is installed on the upper part of the front panel 3 of the high-voltage box housing 2 for easy wiring with external equipment of high-voltage box 1. DC circuit breaker 9 is installed on the other side of the front panel 3 of the high-voltage box housing 2, so that the operator can operate the DC circuit breaker without opening the high-voltage box.

[0030] Work process

[0031] During installation, first fix the DC filter reactor 7 and DC charging resistor 17 to the bottom of the housing 2 with bolts. Then, fasten the reactor bracket 19 onto the DC filter reactor 7 to form an air duct. After fixing the cooling fan 10 to the fan bracket 8, bolt it together to form a complete air duct. Natural air enters from the back panel of the housing 2 and is then drawn out from the front panel of the DC filter reactor 7 by the cooling fan 10, forming a complete air duct circulation to cool the high-voltage box 1.

[0032] This utility model integrates the high-voltage box and the charging filter unit into one compact layout, improving the space utilization of the high-voltage box; the high-voltage box and the charging filter unit are directly wired internally, simplifying the external wiring harness and shortening maintenance time; a cooling fan is used for cooling the DC filter reactor, simplifying the overall structure; the cooling fan is installed inside the fan bracket and close to the front panel of the high-voltage box shell, resulting in significant heat dissipation; both the reactor bracket 19 and the fan support frame consist of two layers, with the outer layer being an insulating board to ensure insulation between the components and the metal box, and the inner layer being covered with an aluminum-zinc plate for good support and high strength.

Claims

1. A structure system of a forced air cooling type high voltage tank charging filter unit, characterized by, The DC filter reactor, the DC charging resistor, the contactor, the heat dissipation fan, the reactor support, the fan support, the copper bar, the Hall sensor, the fan support, the reactor support, the DC charging resistor, and the contactor are fixedly connected with the bottom plate of the high-voltage box shell respectively, the DC filter reactor is arranged in the reactor support, the heat dissipation fan is installed in the fan support and close to the front panel of the high-voltage box shell, and the heat dissipation fan is used for heat dissipation of the DC filter reactor. The DC filter reactor, the DC charging resistor, the contactor, the DC circuit breaker, the fuse, and the Hall sensor are provided with the copper bar.

2. The air-cooled high-voltage tank charging filter unit structure system according to claim 1, characterized in that, The reactor support and the fan support are both aluminum-zinc plates, and the outer layer of the reactor support is covered with an insulating plate.

3. The air-cooled high-voltage tank charging filter unit structure system according to claim 1, characterized by, The DC charging resistor is located on the right side of the bottom plate of the high-voltage box shell, and the reactor support is located on the left side of the bottom plate of the high-voltage box shell.

4. The air-cooled high-voltage tank charge filter unit structure system according to claim 1, characterized by, The switch power supply, the DC circuit breaker, the fuse, the battery management system BMS, the switch, the miniature circuit breaker, the connector, the secondary terminal, and the inverter unit adapter plate are further included, the switch power supply and the fuse are respectively installed outside the reactor support and fixedly connected with the top of the reactor support, the DC circuit breaker, the switch, the miniature circuit breaker, the inverter unit adapter plate, the connector, and the secondary terminal are respectively installed on the front panel of the high-voltage box shell, and the battery management system BMS is hung on the inner side wall of the high-voltage box.

5. The air-cooled high-voltage tank charge filter unit structure system according to claim 1, characterized by, The front panel of the high-voltage box shell is provided with the heat dissipation hole.

6. The air-cooled high-voltage tank charge filter unit structure system according to claim 4, characterized by, The DC circuit breaker, the switch, the miniature circuit breaker, the inverter unit adapter plate, the connector, and the secondary terminal are connected with the copper bar.

7. The air-cooled high-voltage tank charge filter unit structure system according to claim 6, characterized by, The connector, the miniature circuit breaker, and the inverter unit adapter plate are sequentially installed on one side of the front panel of the high-voltage box shell from top to bottom, the switch is located on the right side of the inverter unit adapter plate, the secondary terminal is installed on the upper part of the front panel of the high-voltage box shell, and the DC circuit breaker is installed on the other side of the front panel of the high-voltage box shell.

Images