Electric box integrated cabinet

Abstract

The utility model relates to the technical field of energy storage, in particular to an electric box integrated cabinet, which comprises a cabinet body, the cabinet body comprises a front door plate and a rear door plate, and is characterized by further comprising an air-cooled energy storage converter arranged in the cabinet body, a fan and an air duct are arranged in the air-cooled energy storage converter, and the air duct is arranged in the air-cooled energy storage converter. An air duct opening in one end of the air duct corresponds to the fan, and an air duct opening in the other end of the air duct corresponds to a first air outlet of the front door plate; the rear door plate is provided with a rear door, and the rear door is detachably fixed to the rear door plate in a bolt locking and attaching mode. According to the utility model, the air-cooled energy storage converter is arranged in the cabinet body to replace a traditional liquid-cooled energy storage converter (the cost of the liquid-cooled energy storage converter is relatively high), so that the cost is reduced. In addition, when the electric box integrated cabinet is opened through the rear door on the rear door plate, the rear door maintenance space can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to an electric box integrated cabinet. Background Art

[0002] As the demand for energy storage market continues to increase, the scale of energy storage industry is rapidly expanding, and the types of energy storage cabinets are gradually increasing, such as integrated cabinets. The traditional integrated cabinet uses a liquid-cooled energy storage inverter as the core component to realize the two-way flow of electric energy between the energy storage system and the power grid, that is, the charging and discharging process of the battery is controlled by the liquid-cooled energy storage inverter to perform AC and DC conversion. However, the energy storage inverter (that is, liquid-cooled energy storage inverter) used in the traditional integrated cabinet is relatively expensive, which increases the layout cost of the corresponding integrated cabinet and affects the user experience. In addition, since the traditional integrated cabinet uses the entire rear door panel as the rear door, when opening the cabinet from the rear, the entire rear door panel needs to be rotated open to open the cabinet, that is, the rear door panel needs to be opened as a whole, which makes the station maintenance space larger. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electric box integrated cabinet to solve the problems of high cost and large maintenance space of the traditional electric box integrated cabinet.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An electric box integrated cabinet comprises a cabinet body, wherein the cabinet body comprises a front door panel and a rear door panel, and the cabinet body further comprises an air-cooled energy storage inverter arranged in the cabinet body, wherein the air-cooled energy storage inverter is provided with a fan and an air duct, wherein an air duct opening at one end of the air duct corresponds to the fan setting, and an air duct opening at the other end corresponds to a first air outlet of the front door panel; the rear door panel is provided with a rear door, and the rear door is detachably fixed to the rear door panel by bolt locking.

[0006] Furthermore, the integrated electrical box cabinet described in the utility model also includes a photovoltaic controller, which includes a photovoltaic controller body, a front air duct and a rear air duct; the air duct opening at one end of the front air duct corresponds to the photovoltaic controller body, and the air duct opening at the other end corresponds to the second air outlet setting of the front door panel; the air duct opening at one end of the rear air duct corresponds to the photovoltaic controller body, and the air duct opening at the other end corresponds to the third air outlet setting of the rear door panel.

[0007] Furthermore, the electric box integrated cabinet described in the utility model also includes a main control box and a DC bus module arranged in the cabinet, and the main control box is electrically connected to the DC bus module.

[0008] Furthermore, in the electric box integrated cabinet described in the utility model, a DC protection plate is provided on the DC busbar module.

[0009] Furthermore, the electric box integrated cabinet described in the utility model also includes an uninterruptible power supply and a fire protection module, and the uninterruptible power supply and the fire protection module are both arranged in the cabinet.

[0010] Furthermore, in the integrated electrical box cabinet described in the utility model, it also includes an AC busbar wiring module arranged in the cabinet body, the input end of the AC busbar wiring module is electrically connected to the three-phase power supply outside the cabinet body, and the output end of the AC busbar wiring module is electrically connected to the air-cooled energy storage inverter.

[0011] Furthermore, the electric box integrated cabinet described in the utility model also includes a water cooling unit, and the water cooling unit is arranged in the cabinet.

[0012] Furthermore, in the electric box integrated cabinet described in the utility model, a shock absorbing component is provided on the air duct of the air-cooled energy storage converter, and one end of the shock absorbing component away from the air-cooled energy storage converter is connected to the first air outlet.

[0013] Furthermore, in the integrated electrical box cabinet described in the present invention, the cabinet body also includes a left side panel, a middle panel, a right side panel and a plurality of mounting panels, wherein the left side panel, the middle panel and the right side panel extend in a vertical direction and are arranged in parallel between the front door panel and the rear door panel in order from left to right, and the plurality of mounting panels are arranged horizontally between the left side panel and the middle panel in order from top to bottom.

[0014] Furthermore, in the integrated electrical box cabinet described in the utility model, a main control box is provided in the cabinet body, an insertion portion is provided at the rear end of the main control box, and the multiple mounting plates include at least a first mounting plate, a clamping portion is provided on the first mounting plate, wherein the insertion portion is used to be inserted into the clamping portion to fix the rear end of the main control box on the first mounting plate.

[0015] The beneficial effect of the utility model is that: an electric box integrated cabinet is designed, which is helpful to reduce costs by arranging an air-cooled energy storage inverter in the cabinet to replace the traditional liquid-cooled energy storage inverter (the cost of the liquid-cooled energy storage inverter is relatively high). In addition, when the air-cooled energy storage inverter is arranged in the cabinet, the air duct opening at one end of the air duct in the air-cooled energy storage inverter is arranged corresponding to the fan, and the air duct opening at the other end is arranged corresponding to the first air outlet of the front door panel, so that the heat energy generated by the air-cooled energy storage inverter (i.e., the fan) can be exported to the outside of the cabinet through the air duct in the form of hot air, thereby effectively exporting the generated heat outside the cabinet to avoid damage to components due to excessive temperature.

[0016] In addition, the utility model sets a rear door on the rear door panel and minimizes the size of the rear door. On this basis, the rear door is detachably fixed to the rear door panel by bolts. Compared with the method of opening the rear door by rotating the hinge (this method requires reserving the width of the door as the rear door maintenance space), the utility model only needs to reserve space for people to remove the door, thereby reducing the rear door maintenance space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an external view of an electric box integrated cabinet of the utility model;

[0018] Figure 2 This is a schematic diagram of the back of the electric box integrated cabinet;

[0019] Figure 3 This is a schematic diagram of the interior of the cabinet;

[0020] Figure 4 This is a schematic diagram of the electric box integrated cabinet with the door opened;

[0021] Figure 5 This is a schematic diagram of the internal axial side of the electric box integrated cabinet;

[0022] Figure 6 This is a schematic diagram of the control module of the electric box integrated cabinet;

[0023] Figure 7 This is a schematic diagram of the AC module of the electric box integrated cabinet;

[0024] Figure 8 This is a schematic diagram of the AC internal module of the electric box integrated cabinet;

[0025] Fig. 9 This is the installation diagram of the electrical installation panel of the electric box integrated cabinet;

[0026] Fig.10 This is a schematic diagram of the interior of the rear door of the electrical box cabinet.

[0027] Description of labels:

[0028] 1. Cabinet; 11. Front door panel; 12. Rear door panel; 13. First mounting plate; 14. Second mounting plate; 15. Third mounting plate; 16. Fourth mounting plate; 17. Fifth mounting plate; 18. Sixth mounting plate; 121. Rear door; 131. First pressing block; 171. AC busbar junction box; 191. Photovoltaic input switch; 192. DCDC output line; 193. Three-phase AC power;

[0029] 2. Main control box; 21. Main control box output line

[0030] 3. Uninterruptible power supply; 31. Pressure strip; 32. Stopper; 33. Stopper;

[0031] 4. Photovoltaic controller;

[0032] 5. Control module; 51. Control module mounting plate; 52. Relay; 53. Terminal block; 54. PLC; 55. Serial port server; 56. Industrial computer; 57. Fixing bolts;

[0033] 6. Air-cooled energy storage converter;

[0034] 7. AC busbar wiring module; 71. AC module housing; 72. AC module housing cover; 73. Circuit breaker mounting bracket; 74. Connecting copper bus; 75. Circuit breaker module; 76. AC main switch; 77. Electric meter; 78. Current transformer; 79. External wiring;

[0035] 8. Water cooling unit;

[0036] 9. Fire module; 91. Fire host; 92. Fire bottle; 93. Fire control module;

[0037] 10. DC busbar module; 101. DC protection board. DETAILED DESCRIPTION

[0038] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0039] Please refer to Figure 1 as well as Figure 2 The utility model designs an electric box integrated cabinet, which includes a cabinet body 1, and the cabinet body 1 includes a front door panel 11 and a rear door panel 12. At the same time, the electric box integrated cabinet also includes an air-cooled energy storage converter 6 arranged in the cabinet body 1, and the air-cooled energy storage converter 6 is provided with a fan and an air duct, and the air duct opening at one end of the air duct corresponds to the fan setting, and the air duct opening at the other end corresponds to the first air outlet of the front door panel 11; the rear door panel 12 is provided with a rear door 121, and the rear door 121 is detachably fixed to the rear door panel 12 by bolt locking.

[0040] In the above technical solution of the utility model, in order to solve the problem of high cost in the application of the traditional integrated electric box cabinet, the utility model sets a lower-cost air-cooled energy storage inverter 6 in the cabinet 1 to replace the traditional liquid-cooled energy storage inverter (the cost of the liquid-cooled energy storage inverter is relatively high), so that the integrated electric box cabinet in the utility model can reduce the cost when used. In addition, when the air-cooled energy storage inverter 6 is set in the cabinet 1, the air duct opening at one end of the air duct in the air-cooled energy storage inverter 6 can be set corresponding to the fan, and the air duct opening at the other end can be set corresponding to the first air outlet of the front door panel 11, so that the heat energy generated by the air-cooled energy storage inverter 6 (i.e., the fan) can be exported to the outside of the cabinet 1 through the air duct in the form of hot air, thereby effectively exporting the generated heat to the outside of the cabinet 1.

[0041] In addition, in order to reduce the maintenance space of the rear door, the utility model sets a rear door 121 on the rear door plate 12 and minimizes the size of the rear door. On this basis, the rear door is detachably fixed to the rear door plate by bolts. Compared with the method of opening the rear door by rotating the hinge (this method requires reserving the width of the door as the maintenance space of the rear door), the utility model only needs to reserve space for people to remove the door, thereby reducing the maintenance space of the rear door.

[0042] Furthermore, in the electric box integrated cabinet described in the utility model, the electric box integrated cabinet also includes a photovoltaic controller 4, and the photovoltaic controller 4 includes a photovoltaic controller body, a front air duct and a rear air duct. The air duct opening at one end of the front air duct corresponds to the photovoltaic controller body, and the air duct opening at the other end corresponds to the second air outlet of the front door panel 11. The air duct opening at one end of the rear air duct corresponds to the photovoltaic controller body, and the air duct opening at the other end corresponds to the third air outlet of the rear door panel 12.

[0043] In the above technical scheme of the utility model, in actual application, the photovoltaic controller 4 will generate heat energy when working. Therefore, in order to avoid the photovoltaic controller 4 from being too hot when working, the utility model sets front and rear air ducts on the photovoltaic controller 4, so that the hot air can be directly discharged smoothly from the outside of the cabinet 1 through the front and rear air ducts. Specifically: on the one hand, a front air duct is added to the front end of the photovoltaic controller 4, and the air duct openings at both ends of the front air duct are respectively set to correspond to the second air outlet of the photovoltaic controller body and the front door panel 11, so that part of the heat energy generated by the photovoltaic controller 4 is discharged from the outside of the cabinet 1 through the front air duct and the second air outlet on the front panel in turn. On the other hand, a rear air duct is added to the rear end of the photovoltaic controller 4, and the air duct openings at both ends of the rear air duct are respectively set to correspond to the third air outlet of the photovoltaic controller body and the rear door panel 12, so that part of the heat energy generated by the photovoltaic controller 4 is discharged from the outside of the cabinet 1 through the rear air duct and the third air outlet on the rear door panel in turn. That is, when one end of the front air duct and the rear air duct are both set corresponding to the photovoltaic controller body, the other end air duct openings of the two air ducts are respectively set corresponding to the air outlets of the front and rear door panels, so that the hot air is directly discharged smoothly from the outside of the cabinet 1 through the front and rear air ducts. It can be seen that based on the above settings, the heat generated by the photovoltaic controller 4 can be effectively discharged from the outside of the cabinet 1 in the form of hot air, avoiding the normal operation of the components in the electric box integrated cabinet being affected by excessive temperature.

[0044] Furthermore, in the integrated electrical box cabinet described in the utility model, the integrated electrical box cabinet also includes a main control box 2 and a DC bus module 10 arranged in the cabinet body 1, and the main control box 2 is electrically connected to the DC bus module 10.

[0045] In the above technical solution of the utility model, in order to realize DC convergence, the utility model sets a DC busbar module 10 in the cabinet, and connects the output line of the main control box 2 to the DC busbar module 10, so that the main control box 2 and the DC busbar module 10 are electrically connected to realize at least partial DC convergence of the DC busbar module 10, so as to facilitate the subsequent DC convergence on the same module for easy maintenance and installation.

[0046] Furthermore, in the electric box integrated cabinet described in the utility model, a DC protection plate 101 is provided on the DC busbar module 10 .

[0047] In the above technical solution of the utility model, in order to reduce the risk of accidents caused by high voltage, the utility model sets a DC protection plate 101 on the DC bus module to play a high voltage protection role, thereby effectively ensuring the safe and stable operation of the electric box integrated cabinet.

[0048] Furthermore, in the integrated electrical box cabinet described in the utility model, the integrated electrical box cabinet also includes an uninterruptible power supply 3 and a fire protection module 9, and the uninterruptible power supply 3 and the fire protection module 9 are both arranged in the cabinet body 1.

[0049] In the above technical solution of the utility model, by setting UPS 3 (Uninterruptible Power Supply) in the cabinet 1, it is possible to provide uninterruptible power supply to the components with high power stability requirements inside the cabinet 1, so as to ensure the normal operation of the electric box integrated cabinet. In addition, in order to make the electric box integrated cabinet have corresponding fire protection functions, a corresponding fire protection module 9 can be set in the cabinet 1. The fire protection module 9 provides the electric box integrated cabinet with corresponding fire protection functions, so as to reduce the occurrence of fire and the like as much as possible.

[0050] Furthermore, in the integrated electrical box cabinet described in the utility model, the integrated electrical box cabinet also includes an AC busbar wiring module 7 arranged in the cabinet body 1, the input end of the AC busbar wiring module 7 is electrically connected to the three-phase power supply outside the cabinet body 1, and the output end of the AC busbar wiring module 7 is electrically connected to the air-cooled energy storage inverter 6.

[0051] In the above technical solution of the utility model, since the three-phase power supply outside the cabinet 1 is electrically connected to the AC bus wiring module 7, the three-phase power supply can supply power to the AC bus wiring module 7 in the working state. On this basis, the output end of the AC bus wiring module 7 is electrically connected to the air-cooled energy storage converter 6, so that the current can effectively output the corresponding DC power through the corresponding DC interface after being converted by the air-cooled PCS 6.

[0052] Furthermore, in the integrated electrical box cabinet described in the utility model, the integrated electrical box cabinet also includes a water cooling unit 8 , and the water cooling unit 8 is arranged in the cabinet body 1 .

[0053] In the above technical solution of the utility model, in actual application, in order to cool down the corresponding components and stabilize the temperature control, a water cooling unit 8 can be arranged inside the cabinet 1 to effectively dissipate heat through the water cooling unit 8 .

[0054] Furthermore, in the electric box integrated cabinet described in the utility model, a shock absorbing member is provided on the air duct of the air-cooled energy storage converter 6, and one end of the shock absorbing member away from the air-cooled energy storage converter 6 is connected to the first air outlet.

[0055] In the above technical solution of the utility model, since the air-cooled PCS 6 is a front outlet, an air duct is added at the front end. On this basis, in order to avoid damage to the air duct due to vibration and the like, the utility model sets a shock absorber (such as foam) on the air duct, so that the end of the shock absorber away from the air-cooled energy storage converter 6 is against the first air outlet, thereby absorbing and dispersing the vibration generated, preventing the air duct from directly contacting the first air outlet of the front door panel 11, and reducing wear.

[0056] Furthermore, in the integrated electrical box cabinet described in the present invention, the cabinet body 1 also includes a left side panel, a middle panel, a right side panel and a plurality of mounting panels, wherein the left side panel, the middle panel and the right side panel extend in a vertical direction and are arranged in parallel between the front door panel and the rear door panel in order from left to right, and a plurality of mounting panels are arranged horizontally between the left side panel and the middle panel in order from top to bottom.

[0057] In the above technical solution of the present invention, a plurality of mounting plates are horizontally fixed in the cabinet 1 in sequence from top to bottom, so that the overall layout inside the cabinet 1 is simple.

[0058] Furthermore, in the integrated electrical box cabinet described in the utility model, a main control box is provided in the cabinet body, an insertion portion is provided at the rear end of the main control box, and the multiple mounting plates include at least a first mounting plate, a clamping portion is provided on the first mounting plate, wherein the insertion portion is used to be inserted into the clamping portion to fix the rear end of the main control box on the first mounting plate.

[0059] In the above technical solution of the present invention, in order to ensure the stability of the installation of the main control box 2, during the actual setting, an insertion portion can be set at the rear end of the main control box 2, and a clamping portion can be set on one of the multiple mounting plates, so that when the main control box 2 is assembled to one of the multiple mounting plates, the insertion portion can be correspondingly inserted into the clamping portion, thereby allowing the rear end of the main control box 2 to be clamped on one of the multiple mounting plates.

[0060] Please refer to Figures 1 to 10 , Embodiment 1 of the present utility model is:

[0061] An integrated electric box cabinet can be used in an energy storage system. The input end of the power distribution cabinet of the integrated electric box cabinet can be connected to the power grid, and the output end can be a direct current-direct current (DC-DC) cabinet. On this basis, the integrated electric box cabinet, the DC-DC cabinet and the charging pile can be combined to realize micro-photovoltaic storage charging and testing.

[0062] It should be pointed out that, in the present embodiment, the electrical box integrated cabinet includes a cabinet body 1, and the cabinet body 1 can be designed as a three-dimensional object with a length, width and height of 1710*1450mm*2350mm. Of course, in some other embodiments, the shape and size of the cabinet body 1 can be selected according to actual conditions.

[0063] like Figure 1 , 2 As shown, in the present embodiment, the cabinet 1 includes a front door panel 11, a rear door panel 12, a left side panel, a right side panel, an upper top panel, a lower bottom panel, and a middle panel. Among them, the left side panel, the right side panel, and the middle panel are arranged in parallel in the vertical direction, and the middle panel is located between the front door panel 11 and the rear door panel 12. On this basis, in order to facilitate the arrangement of required components in the cabinet 1, in the present embodiment, a plurality of mounting panels (such as electrical mounting panels) may be arranged inside the cabinet 1, and the plurality of mounting panels may be arranged horizontally between the left side panel and the middle panel in sequence from top to bottom. It should be noted that the number of mounting panels may be selected according to actual conditions, such as the number of modules in the cabinet 1 and the actual occupied volume. In the present embodiment, as Figure 3 , 4 As shown, six mounting plates may be provided in the cabinet 1, and the six mounting plates may include, in order from top to bottom, a first mounting plate 13, a second mounting plate 14, a third mounting plate 15, a fourth mounting plate 16, a fifth mounting plate 17, and a sixth mounting plate 18. The following specifically introduces each functional module in this embodiment in combination with the above-mentioned multiple mounting plates.

[0064] Correspondingly, in this embodiment, an air-cooled energy storage inverter 6 is specifically provided in the cabinet 1, and a fan and an air duct are provided in the air-cooled energy storage inverter 6. The air duct opening at one end of the air duct corresponds to the fan setting, and the air duct opening at the other end corresponds to the first air outlet setting of the front door panel 11.

[0065] like Figure 4As shown, from the front door panel, the inside of the cabinet 1 is viewed, and the air-cooled energy storage converter 6 (Power Control System, PCS) can be divided into two parts, wherein the first part of the air-cooled PCS 6 is fixed on the third mounting plate 15, and the second part of the air-cooled PCS 6 is fixed on the fourth mounting plate 16. Specifically: the front end of the first part of the air-cooled PCS 6 can be fixed by bolts, and the rear end can be fixed by a pressure strip. When installing the first part of the air-cooled PCS 6, the pressure strip can be installed on the corresponding mounting plate first, and then the first part of the air-cooled PCS 6 can be pushed into the space formed by the pressure strip and the third mounting plate 15, so that the pressure strip fits the air-cooled PCS 6. The above fixing method makes it unnecessary to lock the rear end, and then the rear part can be fixed without opening the door during installation. It should be noted that the fixing method for the second part of the air-cooled PCS 6 can also be similar to the above first part. In addition, in some other embodiments, air-cooled PCS 6 installation boxes with front end openings can also be set at corresponding positions on the third mounting plate 15 and the fourth mounting plate 16. During installation, the air-cooled PCS 6 can be pushed into the air-cooled PCS 6 installation box from the front opening, and then the air-cooled PCS 6 is fixed in the air-cooled PCS 6 installation box. In this embodiment, an air-cooled energy storage converter 6 is arranged in the cabinet 1 to replace a traditional liquid-cooled energy storage converter (which has a relatively high cost), thereby reducing the installation cost.

[0066] In addition, in this embodiment, the cabinet 1 is also provided with a main control box 2, a UPS 3 (uninterruptible power supply), and a photovoltaic controller 4. Figure 4 As shown, looking at the electric box integrated cabinet from the front door panel, the main control box 2, UPS 3, and photovoltaic controller 4 are fixed on the first mounting plate 13 in sequence from right to left.

[0067] It should be noted that, for the photovoltaic controller, the photovoltaic controller 4 can be fixed by bolts. For UPS3, the UPS 3 can be limited by the pressure strip 31 in the vertical direction, and in the horizontal direction, a front block 32 and a rear block 33 can be set at the front and rear positions, so that the UPS 3 can be limited in the horizontal direction by the cooperation of the front block 32 and the rear block 33. For the main control box, the front end of the main control box 2 can be fixed by a plurality of bolts, and the rear end of the main control box 2 can be height-limited by a latch and a pressure block. Specifically: an insertion portion (such as a latch) can be set at the rear end of the main control box 2, and a clamping portion (such as a first pressure block 131) can be set at the corresponding position of the first mounting plate 13, so that when the rear end of the main control box 2 is clamped on the first mounting plate 13, the insertion portion can be used to be inserted into the corresponding clamping portion to complete the limitation of the main control box 2 and the first mounting plate 13.

[0068] It should be noted that, in actual application, the uninterruptible power supply 3 needs to be used in an environment of -30℃~60℃. In addition, the photovoltaic controller 4 in this embodiment also includes a photovoltaic controller body, a front air duct and a rear air duct. Among them, the air duct opening at one end of the front air duct corresponds to the photovoltaic controller body setting, and the air duct opening at the other end corresponds to the second air outlet setting of the front door panel 11. The air duct opening at one end of the rear air duct corresponds to the photovoltaic controller body setting, and the air duct opening at the other end corresponds to the third air outlet setting of the rear door panel 12. In actual application, the photovoltaic controller 4 will generate heat energy when working. Therefore, in order to avoid the photovoltaic controller 4 from overheating when working, the utility model sets front and rear air ducts on the photovoltaic controller 4, so that the hot air can be directly discharged smoothly to the outside of the cabinet 1 through the front and rear air ducts.

[0069] In this embodiment, the cabinet 1 is further provided with a control module and a DC bus module 10. Figure 4 , 5 As shown, when viewing the electric box integrated cabinet from the front door panel, the DC busbar module 10 and the control module are fixed on the second mounting plate 14 in sequence from right to left. The DC busbar module 10 and the control module 5 are described in detail below.

[0070] In this embodiment, the DC busbar module 10 is electrically connected to the main control box 2. In actual application, the DC busbar module 10 includes a DC busbar mounting plate and a DC busbar (i.e., positive and negative DC busbars). Among them, the positive and negative DC busbars can be fixed on the DC busbar mounting plate by insulating columns, and the DC busbar mounting plate can be fixed on the second mounting plate 14 by bolts. In addition, in order to achieve high-voltage protection, a DC protection plate 101 can also be provided on the DC busbar module 10, and the DC protection plate 101 can be fixed on the second mounting plate 14 by multiple bolts. It should be noted that in order to achieve DC convergence on the DC busbar module, the air-cooled PCS 6 DC output line, the main control box 2 output line, the DCDC output line 192, and the photovoltaic controller 4 wiring can be connected to the DC busbar to complete the convergence. It can be seen from the above that the utility model puts DC-related parts on the same module and converges DC on the same module, which can help subsequent maintenance and installation. It should be noted that the photovoltaic input switch 191 can also be fixed on the DC busbar mounting plate by rails, bolts, etc.

[0071] like Figure 6As shown, the control module 5 may include components such as a control module mounting plate 51, a relay 52, a terminal block 53, a PLC (programmable logic controller) 54, a serial port server 55, an industrial computer 56, and fixing bolts 57. Among them, the relay 52 and the terminal block 53 can be fixed on the control module mounting plate 51 by a guide rail. The PLC 54 and the serial port server 55 can be fixed on the control module mounting plate 51 by a guide rail. The industrial computer 56 can be fixed on the control module mounting plate 51 by a plurality of bolts. It can be seen from the above that by placing the control function-related components on the same module, the control module can be pre-installed. After the control module is pre-installed, the pre-installed control module can be quickly fixed as a whole on the second mounting plate 14, thereby realizing functional zoning and improving production efficiency, and facilitating maintenance and installation. It should be noted that the above fixing method can be selected according to the situation and is not limited here.

[0072] In this example, the cabinet 1 is further provided with an AC busbar connection module 7, the input end of which is electrically connected to the three-phase power supply outside the cabinet 1, and the output end of which is electrically connected to the air-cooled energy storage converter 6. Figure 5 As shown, the three-phase AC power 193 can enter through the left side of the bottom of the cabinet 1, thereby being electrically connected to the AC busbar wiring module 7. Correspondingly, the output three-phase AC of the AC busbar wiring module 7 can be electrically connected to the PCS 6 through the wire, so that after the current is converted by the PCS, the DC interface can be directly connected to the DC busbar module 10 through the wire. It should be noted that an AC busbar wiring box 171 can be provided on the fifth mounting plate 17 to fix the above-mentioned AC busbar wiring module 7 in the AC busbar wiring box 171.

[0073] And, in actual settings, such as Figure 7 , 8As shown, the AC busbar wiring module 7 can be composed of multiple components such as an AC module housing 71, an AC module housing cover 72, an air switch mounting bracket 73, a connecting copper bar 74, an air switch module 75, a circuit breaker (AC main switch 76), an electric meter 77, a current transformer 78, and an external wiring 79. Among them, the AC module housing 71 can be made of materials such as acrylic board and PC board to display the part of the air switch that needs to be operated and the electric meter to be viewed, and the air switch purpose corresponding to the silk screen text is used to achieve high-voltage protection while allowing users to clearly understand the purpose of the corresponding air switch. The air switch mounting bracket 73 is fixed to the AC module housing 71 by multiple (such as 4) bolts. The connecting copper bar 74 in the AC busbar wiring module 7 is used to act as an AC busbar so that the air switch module 75 can draw power from the connecting copper bar 74. In addition, the air switch module 75 is also used to power corresponding components, such as powering the water cooling unit 8, the uninterruptible power supply 3, the photovoltaic inverter AC module, the DC (direct current circuit), the fire protection system, etc. It should be noted that when installing the AC busbar wiring module 7, the internal components of the AC busbar wiring module 7 can be installed first. After the wiring of the internal components is completed, the entire module is installed in the cabinet 1 to improve production efficiency. In actual settings, the AC busbar wiring module 7 is not completely enclosed, and the AC busbar wiring module 7 can be directly connected to external wiring, thereby reducing the number of connectors in the wiring harness, improving production efficiency and reducing costs. In addition, when performing after-sales maintenance on the AC busbar wiring module 7, it is only necessary to remove the four open mounting brackets 73 for front maintenance and replacement, which is convenient for after-sales maintenance.

[0074] In this embodiment, a water cooling unit 8 is also provided in the cabinet 1, and the water cooling unit 8 is fixed on the sixth mounting plate 18. It should be noted that the fixing method of the water cooling unit 8 can be selected according to actual conditions. For example, a pressure strip can be provided on the sixth mounting plate 18 at a position corresponding to the rear end of the water cooling unit 8, and the rear end of the water cooling unit 8 can be fixed on the sixth mounting plate 18 by the pressure strip. For the front end of the water cooling unit 8, it can be fixed by multiple (such as 4) bolts. When installing the water cooling unit 8, the pressure strip can be installed first, and then the water cooling unit 8 can be pushed into the space formed by the pressure strip and the sixth mounting plate 18, so as to ensure that the rear end does not need to be locked and the rear door does not need to be opened.

[0075] In this embodiment, a fire protection module 9 is also provided in the cabinet 1. Fig.10As shown, the fire module 9 includes components such as a fire host 91, a fire bottle 92, and a fire control module 93. The fire host 91, the fire bottle 92, the fire control module 93, and other components can be fixed on the first mounting plate 13 by bolts or the like. It should be noted that the fire module 9 can be arranged at a position corresponding to the rear door 121 of the cabinet 1. In this embodiment, by arranging a fire module 9 composed of a fire host 91, a fire bottle 92, a fire control module 93, etc. in the cabinet 1, a fire function can be provided for the electric box integrated cabinet. In addition, the fire-related system can also be placed on the upper part of the rear door of the cabinet 1.

[0076] In summary, the integrated electrical box cabinet designed by the present invention has the following advantages: (1) the use of an air-cooling solution (i.e., an air-cooled energy storage inverter) can reduce costs; (2) the control part, AC busbar wiring part, PCS, main control box part, fire protection part and other parts are modularized, that is, modularized according to function to improve production efficiency and reduce costs; (3) multiple mounting plates are horizontally fixed in the cabinet 1 from top to bottom, and each functional module is fixed in order on the corresponding mounting plate, so that the overall layout inside the cabinet 1 is simple; (4) the rear door maintenance space is reduced.

[0077] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An electric box integrated cabinet, comprising a cabinet body, wherein the cabinet body comprises a front door panel and a rear door panel, characterized in that: It also includes an air-cooled energy storage inverter arranged in the cabinet, wherein the air-cooled energy storage inverter is provided with a fan and an air duct, wherein an air duct opening at one end of the air duct corresponds to the fan setting, and an air duct opening at the other end corresponds to the first air outlet of the front door panel; the rear door panel is provided with a rear door, and the rear door is detachably fixed to the rear door panel by bolt locking.

2. The electric box integrated cabinet according to claim 1, characterized in that: It includes a photovoltaic controller, which includes a photovoltaic controller body, a front air duct and a rear air duct; the air duct opening at one end of the front air duct corresponds to the photovoltaic controller body, and the air duct opening at the other end corresponds to the second air outlet of the front door panel; the air duct opening at one end of the rear air duct corresponds to the photovoltaic controller body, and the air duct opening at the other end corresponds to the third air outlet of the rear door panel.

3. The electric box integrated cabinet according to claim 1, characterized in that: It comprises a main control box and a DC bus module which are arranged in a cabinet, and the main control box is electrically connected to the DC bus module.

4. The electric box integrated cabinet according to claim 3, characterized in that: The DC busbar module is provided with a DC protection plate.

5. The electric box integrated cabinet according to claim 1, characterized in that: It comprises an uninterruptible power supply and a fire protection module, and the uninterruptible power supply and the fire protection module are both arranged in the cabinet.

6. The electric box integrated cabinet according to claim 1, characterized in that: It comprises an AC busbar wiring module arranged in the cabinet, the input end of the AC busbar wiring module is electrically connected to the three-phase power supply outside the cabinet, and the output end of the AC busbar wiring module is electrically connected to the air-cooled energy storage converter.

7. The electric box integrated cabinet according to claim 1, characterized in that: It also includes a water cooling unit, which is arranged in the cabinet.

8. The electric box integrated cabinet according to claim 1, characterized in that: A shock absorber is provided on the air duct of the air-cooled energy storage converter, and one end of the shock absorber away from the air-cooled energy storage converter is connected to the first air outlet.

9. The electric box integrated cabinet according to claim 1, characterized in that: The cabinet body also includes a left side panel, a middle panel, a right side panel and a plurality of mounting panels, wherein the left side panel, the middle panel and the right side panel extend in a vertical direction and are arranged in parallel between the front door panel and the rear door panel in order from left to right, and the plurality of mounting panels are arranged horizontally between the left side panel and the middle panel in order from top to bottom.

10. The electric box integrated cabinet according to claim 9, characterized in that: A main control box is provided in the cabinet, an insertion portion is provided at the rear end of the main control box, the multiple mounting plates include at least a first mounting plate, a clamping portion is provided on the first mounting plate, wherein the insertion portion is used to be inserted into the clamping portion so that the rear end of the main control box is clamped on the first mounting plate.

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