A super-silence type container energy storage power station

Abstract

This invention discloses an ultra-quiet containerized energy storage power station, belonging to the technical field of energy storage power stations. It includes a housing, and a cable management component on the left side of the control cabinet. The cable management component includes a fixed frame fixedly connected to the left side of the control cabinet. A sliding groove is opened on the rear left end of the fixed frame, and a slider is slidably connected inside the groove. A movable plate is fixedly connected to the left side of the slider. The surface of the movable plate has guide grooves arranged in a fan shape. A guide is provided between the fixed frame and the movable plate. This invention uses cable management frames to move and separate cables after they are moved. After the cables are connected to the control cabinet, multiple cable management frames gather and separate multiple cables, effectively preventing tangling of multiple cables after wiring. Simultaneously, the cables separated by the cable management frames are easier to organize, facilitating quick maintenance by subsequent personnel.

Description

[0001] Technical field.

[0002] This invention relates to the field of energy storage power station technology, and more specifically, to an ultra-quiet containerized energy storage power station. Background Technology

[0003] Energy storage power stations can convert electrical energy into chemical energy, mechanical energy, thermal energy, and other forms for storage, so that it can be released during peak energy demand periods. This conversion and storage process can effectively solve the problems of volatility and instability of new energy sources, improve energy utilization and supply reliability, and has broad application prospects. It can provide efficient, reliable, and clean energy solutions for various fields, including but not limited to power systems, transportation, industrial manufacturing, and building energy management. In power systems, energy storage power stations can balance grid load, improve grid security and stability, and also improve the reliability and flexibility of power supply.

[0004] The capacity of an energy storage power station directly affects its energy storage and output capabilities, and is an important indicator for evaluating its performance and application value. The capacity of an energy storage power station is related to the energy density and energy storage efficiency of different energy storage forms. For example, the capacity of a pumped storage power station is usually determined by the volume and head of the reservoir, while the capacity of a battery energy storage power station depends on parameters such as the rated capacity and voltage of the battery. The internal layout of a containerized energy storage power station is usually partitioned, with most of the space used to house the energy storage batteries and a small portion used to install control cabinets for controlling and protecting the safe operation of the circuits and displaying and controlling the operating status of electrical equipment.

[0005] In existing technologies, energy storage power stations typically have a large number of cables installed inside, which are then connected to the control cabinet after wiring. When one or more battery modules malfunction, the control cabinet can display the fault in a timely manner. However, due to the large number of cables, the cables corresponding to the battery modules are easily tangled or messed up with other cables. This causes maintenance personnel to spend a certain amount of time organizing the cables during maintenance and repair, thus affecting the maintenance and repair efficiency of the energy storage power station. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of this invention is to provide an ultra-quiet containerized energy storage power station.

[0007] To solve the above problems, the present invention adopts the following technical solution, which can realize the gathering and separation of multiple cables at the same time, effectively avoid the phenomenon of multiple cables getting tangled after wiring, and at the same time, facilitate the organization of cables.

[0008] An ultra-quiet containerized energy storage power station includes a container and a control cabinet located on the right side inside the container, with a wiring assembly on the left side of the control cabinet;

[0009] The assembly line includes a fixed frame fixedly connected to the left side of the control cabinet. A sliding groove is provided on the rear left end of the fixed frame. A slider is slidably connected inside the sliding groove. A movable plate is fixedly connected to the left side of the slider. Guide grooves are arranged in a fan shape on the surface of the movable plate. A guide is provided between the fixed frame and the movable plate. A drive is provided on the front left side of the fixed frame.

[0010] Furthermore, the guide includes a guide frame arranged in a linear array and slidingly contacting the left side of the fixed frame. A guide strip is fixedly connected to the left side of the fixed frame. The guide frame is slidably connected to the outside of the guide strip. A wire guide is fixedly connected to the left side of the guide strip. The wire guide is bent. A roller is provided on the left side of the wire guide. The roller is rotatably connected inside the guide groove.

[0011] Furthermore, the guide includes a servo motor disposed on the upper left side of the fixed frame, the output end of the servo motor is fixedly connected to a lead screw, the outer side of the lead screw is threaded with a lead screw nut, the outer side of the lead screw nut is sleeved with a sleeve, and the outer side of the sleeve is fixedly connected to the front side of the moving plate.

[0012] Furthermore, the control cabinet is provided with an extension assembly on the left side, the extension assembly including a limiting rod fixedly connected to the front and rear sides of the lower left end of the control cabinet.

[0013] Furthermore, a tension spring is fixedly connected to the outer side of the limiting rod, and an extension plate is slidably sleeved on the outer side of the limiting rod. Limiting grooves are opened on both the front and rear sides of the right end of the extension plate. The limiting rod is slidably connected in the limiting groove. The right side of the moving plate is fixedly connected to the left end of the tension spring.

[0014] Furthermore, the surface of the extension plate is provided with a through groove, and the front and rear sides of the upper end of the extension plate are provided with notches. The notches are triangular and are connected to the movable groove. Fixed rods are fixedly connected to the left side of the line-fixing frame at both the front and rear ends. Columns are fixedly connected to the upper side of the fixed rods. The fixed rods are slidably connected inside the movable groove. After the extension plate moves, the columns press against the inner surface of the notches. The upper extension of the extension plate and the surface of the line-fixing frame are both hollow.

[0015] Furthermore, a dust blowing assembly is provided on the left side of the control cabinet, the dust blowing assembly including positioning grooves opened on the front and rear sides inside the extension plate.

[0016] Furthermore, the positioning groove is connected to the movable groove, and a pressing block is slidably connected inside the positioning groove. A pressure sensor is provided on the side of the movable groove away from the positioning groove. A pressure spring is provided between the pressing block and the pressure sensor. One end of the pressure spring is fixedly connected to the pressing block, and the other end of the pressure spring is fixedly connected to the side of the movable groove near the pressure sensor. Fans are provided on both the front and rear sides of the right end of the moving plate. Both the pressure sensor and the fans are electrically connected to an external power supply.

[0017] Furthermore, a flow guiding component is provided on the left side of the fixing frame, the flow guiding component including a guide frame fixedly connected to the left side of the fixing frame.

[0018] Furthermore, the guide frame has an air cavity inside, and air outlet pipes are fixedly connected to the upper and lower sides of the inner surface of the guide frame in a linear array. The air outlet pipes are connected to the air cavity and face the wiring point of the control cabinet.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) The present invention can move the cable by setting the cable guide frame and separate the cable. After the cable is connected to the control cabinet, multiple cable guide frames will gather multiple cables and separate multiple cables, which can effectively avoid the phenomenon of multiple cables getting tangled after the connection is completed. At the same time, the cables isolated by the cable guide frame can also be easily organized so that the staff can quickly maintain them.

[0021] (2) The present invention stretches the cable after the cable positioning frame is separated by the extension plate. As the positioning frame drives multiple cables to start moving, the extension plate will also stretch the cable, causing the cable to extend. After the cable is extended, the staff can observe the cable more intuitively, and it is also convenient to pull the cable out from the connection point, which further improves the cable management effect.

[0022] (3) The present invention uses a fan to blow away the dust accumulated at the cable connection after the cables are dispersed. As multiple cables move to the farthest distance, the fan can generate airflow to blow away the dust accumulated at the cable joints and control cabinet connection. After multiple cables are separated, the airflow can be blown toward the control cabinet as much as possible, avoiding the obstruction of airflow by the gathered cables. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the housing of the present invention;

[0025] Figure 3 This is a schematic diagram of the control cabinet of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the control cabinet of the present invention on the left side;

[0027] Figure 5 This is a schematic diagram of the structure of the fixing frame of the present invention;

[0028] Figure 6 This is a schematic diagram of the left cross-sectional structure of the movable plate of the present invention;

[0029] Figure 7 This is a top cross-sectional view of the extension plate of the present invention;

[0030] Figure 8 This is a schematic diagram of the guide frame of the present invention.

[0031] Explanation of the labels in the diagram:

[0032] 1. Housing; 11. Control cabinet; 2. Line assembly; 21. Fixing frame; 22. Slide rail; 23. Slider; 24. Moving plate; 25. Guide groove; 26. Guide component; 261. Guide frame; 262. Guide strip; 263. Line fixing frame; 264. Roller; 27. Drive component; 271. Servo motor; 272. Lead screw; 273. Lead screw nut; 274. Sleeve; 28. Extension assembly; 29 1. Limiting rod; 282. Tension spring; 283. Extension plate; 284. Limiting groove; 285. Movable groove; 286. Notch; 287. Fixing rod; 288. Column; 29. ​​Dust blowing assembly; 291. Positioning groove; 292. Extrusion block; 293. Pressure spring; 294. Pressure sensor; 295. Fan; 3. Flow guiding assembly; 31. Guide frame; 32. Air cavity; 33. Air outlet pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 8 An ultra-quiet containerized energy storage power station includes a container 1 and a control cabinet 11 located on the right side inside the container 1. A line assembly 2 is located on the left side of the control cabinet 11.

[0035] The assembly line component 2 includes a fixed frame 21 fixedly connected to the left side of the control cabinet 11. A slide groove 22 is provided on the rear left side of the fixed frame 21. A slider 23 is slidably connected inside the slide groove 22. A movable plate 24 is fixedly connected to the left side of the slider 23. A guide groove 25 is provided through the surface of the movable plate 24 in a fan shape. A guide 26 is provided between the fixed frame 21 and the movable plate 24. A drive 27 is provided on the front left side of the fixed frame 21.

[0036] The guide 26 includes a guide frame 261 arranged in a linear array and slidingly contacting the left side of the fixed frame 21. A guide strip 262 is fixedly connected to the left side of the fixed frame 21. The guide frame 261 is slidably connected to the outside of the guide strip 262. A wire guide frame 263 is fixedly connected to the left side of the guide strip 262. The wire guide frame 263 is bent. A roller 264 is provided on the left side of the wire guide frame 263. The roller 264 is rotatably connected inside the guide groove 25.

[0037] The guide 26 includes a servo motor 271 located on the upper left side of the fixed frame 21. The output end of the servo motor 271 is fixedly connected to a lead screw 272. A lead screw nut 273 is threadedly connected to the outer side of the lead screw 272. A sleeve 274 is sleeved on the outer side of the lead screw nut 273. The outer side of the sleeve 274 is fixedly connected to the front side of the moving plate 24.

[0038] By adopting the above technical solution, after the control cabinet 11 and the housing 1 are connected, the servo motor 271 is started to drive the lead screw 272 to rotate. After the lead screw 272 rotates, the sleeve 274 on the outside of the lead screw 272 is fixed to the moving plate 24. When the moving plate 24 moves upward, the slider 23 fixed to the moving plate 24 will slide in the groove 22 on the surface of the fixed frame 21, so that the moving plate 24 moves upward stably. The roller 264 inside the guide groove 25 on the surface of the moving plate 24 will roll inside the guide groove 25. As multiple rollers 264 roll inside the guide groove 25, they will begin to converge. The cable fixing frame 263 connected to the rollers 264 will move synchronously and drive the guide frame 261 to slide outside the guide strip 262, so that multiple cable fixing frames 263 will also begin to converge. When the cable is connected to the control cabinet 11, it will pass through the cable fixing frame. After the cable guide 263 is assembled, multiple cables are gathered together and separated. When the battery inside the housing 1 is not working properly, the control cabinet 11 can display the corresponding battery. When the staff performs maintenance, the servo motor 271 can be started to drive the lead screw 272 to rotate in the opposite direction, causing the moving plate 24 to move downward. After the moving plate 24 moves downward, multiple cables are separated, and the corresponding cable can be pulled out from the control cabinet 11. Since multiple cable guides 263 gather and separate multiple cables after the cables are connected to the control cabinet 11, it effectively avoids the phenomenon of multiple cables getting tangled after the connection is completed. At the same time, the cables separated by the cable guide 263 can also be easily organized for subsequent maintenance by the staff.

[0039] like Figure 2 , Figure 4 and Figure 7 As shown, the left side of the control cabinet 11 is provided with an extension assembly 28, which includes a limit rod 281 fixedly connected to the front and rear sides of the lower left end of the control cabinet 11.

[0040] A tension spring 282 is fixedly connected to the outer side of the limiting rod 281. An extension plate 283 is slidably sleeved on the outer side of the limiting rod 281. Limiting grooves 284 are opened on both the front and rear sides of the right end of the extension plate 283. The limiting rod 281 is slidably connected in the limiting groove 284. The right side of the moving plate 24 is fixedly connected to the left end of the tension spring 282.

[0041] The surface of the extension plate 283 is provided with a through groove 285. The front and rear sides of the upper end of the extension plate 283 are provided with notches 286. The notches 286 are triangular and are connected to the groove 285. Fixed rods 287 are fixedly connected to the left side of the line frame 263 at both ends. The upper side of the fixed rods 287 is fixedly connected to the column 288. The fixed rods 287 are slidably connected inside the groove 285. After the extension plate 283 moves, the column 288 presses against the inner surface of the notch 286. The upper extension of the extension plate 283 and the surface of the line frame 263 are both hollow.

[0042] By adopting the above technical solution, when the lead screw 272 drives the moving plate 24 to move downward, the multiple wire guide frames 263 will gradually separate. When the fixing rods 287 fixed to the front and rear wire guide frames 263 slide in the movable grooves 285 inside the extension plate 283, the columns 288 fixed on the upper side of the fixing rods 287 will slide inside the notches 286, and the columns 288 will press against the inclined surface of the inner surface of the notches 286. At this time, the extension plate 283 will be pushed to one side. After the extension plate 283 is pushed, because the extension plate 283 is sleeved on the outside of the limiting rod 281 through the limiting groove 284, after the extension plate 283 moves outside the limiting rod 281, the extension plate 283 will pull the tension spring 282. The cable passes through the upper extension of the extension plate 283 before passing through the cable guide frame 263. After the extension plate 283 moves, it stretches the cable. After the moving plate 24 moves upward, the pressing position of the column 288 against the notch 286 will change due to the pull of the tension spring 282 on the extension plate 283, causing the extension plate 283 to gradually return to its original position. The stretching effect of the extension plate 283 on the cable will also disappear. As the positioning frame drives multiple cables to start moving, the extension plate 283 will also stretch the cables, causing the cables to extend. After the cables are extended, the staff can observe the cables more intuitively and it is also easier to pull the cables out from the connection point, further improving the cable management effect.

[0043] like Figure 7 As shown, a dust blowing assembly 29 is provided on the left side of the control cabinet 11. The dust blowing assembly 29 includes positioning grooves 291 on the front and rear sides inside the extension plate 283.

[0044] The positioning groove 291 is connected to the movable groove 285. The squeezing block 292 is slidably connected inside the positioning groove 291. A pressure sensor 294 is provided on the side of the movable groove 285 away from the positioning groove 291. A pressure spring 293 is provided between the squeezing block 292 and the pressure sensor 294. One end of the pressure spring 293 is fixedly connected to the squeezing block 292, and the other end of the pressure spring 293 is fixedly connected to the side of the movable groove 285 near the pressure sensor 294. Fans 295 are provided on both the front and rear sides of the right end of the moving plate 24. Both the pressure sensor 294 and the fans 295 are electrically connected to an external power supply.

[0045] By adopting the above technical solution, when the fixed rods 287 located on the front and rear sides move to the end inside the designated movable groove 285, the fixed rods 287 will press the pressing block 292 extending from the inside of the positioning groove 291 into the movable groove 285. After entering the positioning groove 291, the pressing block 292 will not only press the pressure spring 293 inside the positioning groove 291, but also pass through the pressure spring 293 to press the part of the pressure sensor 294 extending into the positioning groove 291. After being pressed, the pressure sensor 294 will... The signal is transmitted to the control cabinet 11, and then the fan 295 above the extension plate 283 is started through the control cabinet 11. After the fan 295 is running, the airflow generated by the fan 295 will blow towards the connection point of the cable and the control cabinet 11, and blow away the dust accumulated on the cable joint and connection point. Since the multiple cables have moved to the farthest distance, the fan 295 can generate airflow to blow away the dust accumulated on the cable joint and the connection point of the control cabinet 11. After the multiple cables are separated, it can help the airflow to blow towards the control cabinet 11 as much as possible, and avoid the convergence of cables obstructing the airflow.

[0046] like Figure 8 As shown, a flow guiding component 3 is provided on the left side of the fixed frame 21. The flow guiding component 3 includes a guide frame 31 fixedly connected to the left side of the fixed frame 21.

[0047] The guide frame 31 has an air cavity 32 inside. The upper and lower sides of the inner surface of the guide frame 31 are fixedly connected to the air outlet pipes 33 in a linear array. The air outlet pipes 33 are connected to the air cavity 32 and face the wiring point of the control cabinet 11.

[0048] By adopting the above technical solution, as the airflow generated by the fan 295 blows towards the control cabinet 11, part of the airflow will enter the air cavity 32 inside the guide frame 31. As the airflow continues to flow inside the air cavity 32, when the airflow reaches the position of the air outlet 33, because the opening of the air outlet faces the cable connector, the airflow will be accurately guided to the cable connector. Since the airflow generated by the fan 295 is guided to the corresponding position of the cable connector after entering the air cavity 32 inside the guide frame 31, the efficiency of the airflow in blowing away the dust accumulated at the cable connector is guaranteed, further improving the dust blowing efficiency of the fan 295 on the cable and the connection point of the control cabinet 11.

[0049] Working principle: After the control cabinet 11 and the housing 1 are connected, the servo motor 271 is started to drive the lead screw 272 to rotate. Because the sleeve 274 on the outside of the lead screw 272 is fixed to the moving plate 24, when the moving plate 24 moves upward, the roller 264 will roll inside the guide groove 25. The cable guide 263 connected to the roller 264 will move synchronously and drive the guide frame 261 to slide on the outside of the guide bar 262. This causes multiple cable guides 263 to pull the cables together, and the cable guides 263 separate the cables. When the staff performs maintenance, the servo motor 271 can be started to drive the lead screw 272 to rotate in the opposite direction, causing the moving plate 24 to move downward. After the movable plate 24 moves downward, multiple cables are separated, and the corresponding cables can be pulled out from the control cabinet 11. At the same time, the fixing rods 287 fixed to the front and rear cable holders 263 slide in the movable grooves 285 inside the extension plate 283, causing the columns 288 fixed on the upper side of the fixing rods 287 to slide inside the notches 286 and squeeze the inclined surface of the inner surface of the notches 286. At this time, the extension plate 283 will be pushed to one side, and the extension plate 283 will pull the tension spring 282. Since the cable passes through the upper extension of the extension plate 283 before passing through the cable holder 263, the extension plate 283 will stretch the cable after it moves. After the movable plate 24 moves upward, the pressing position of the column 288 against the notch 286 will change due to the pulling of the tension spring 282 on the extension plate 283, causing the extension plate 283 to gradually return to its original position. The stretching effect of the extension plate 283 on the cable will also disappear. When the fixed rods 287 located on the front and rear sides move to the end of the designated movable groove 285, the fixed rods 287 will press the pressing block 292. After the pressing block 292 enters the positioning groove 291, it will not only press the pressure spring 293 inside the positioning groove 291, but the pressing block 292 will also pass through the pressure spring 293 and extend to the positioning sensor 294. The part inside the slot 291 is squeezed, and the pressure sensor 294, after being squeezed, will transmit a signal to the control cabinet 11. Then, the control cabinet 11 will start the fan 295 above the extension plate 283. After the fan 295 is running, the airflow generated by the fan 295 will blow towards the connection point between the cable and the control cabinet 11, and blow away the dust accumulated on the cable joint and connection point. Among them, some airflow enters the air cavity 32 inside the guide frame 31. As the airflow continues to flow inside the air cavity 32, when the airflow reaches the position of the air outlet 33, because the opening of the air outlet faces the cable connection point, the airflow will be accurately guided to the cable connection point.

[0050] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An ultra-quiet containerized energy storage power station, comprising a container (1) and a control cabinet (11) disposed on the right side inside the container (1), characterized in that: The control cabinet (11) has a line assembly component (2) on its left side; The assembly line component (2) includes a fixed frame (21) fixedly connected to the left side of the control cabinet (11). A slide groove (22) is provided on the rear left side of the fixed frame (21). A slider (23) is slidably connected inside the slide groove (22). A movable plate (24) is fixedly connected to the left side of the slider (23). A guide groove (25) is provided through the surface of the movable plate (24) in a fan shape. A guide (26) is provided between the fixed frame (21) and the movable plate (24). A drive (27) is provided on the front left side of the fixed frame (21). The guide (26) includes a guide frame (261) arranged in a linear array and slidingly contacting the left side of the fixed frame (21). A guide strip (262) is fixedly connected to the left side of the fixed frame (21). The guide frame (261) is slidably connected to the outside of the guide strip (262). A wire guide frame (263) is fixedly connected to the left side of the guide strip (262). The wire guide frame (263) is bent. A roller (264) is provided on the left side of the wire guide frame (263). The roller (264) is rotatably connected inside the guide groove (25). The control cabinet (11) is provided with an extension assembly (28) on the left side. The extension assembly (28) includes a limiting rod (281) fixedly connected to the front and rear sides of the lower left end of the control cabinet (11). A tension spring (282) is fixedly connected to the outside of the limiting rod (281), and an extension plate (283) is slidably sleeved on the outside of the limiting rod (281). Limiting grooves (284) are opened on both the front and rear sides of the right end of the extension plate (283). The limiting rod (281) is slidably connected in the limiting groove (284). The right side of the moving plate (24) is fixedly connected to the left end of the tension spring (282). The surface of the extension plate (283) is provided with a through groove (285). The front and rear sides of the upper end of the extension plate (283) are provided with notches (286). The notches (286) are triangular and are connected to the through groove (285). Fixed rods (287) are fixedly connected to the left side of the line frame (263) at the front and rear ends. A column (288) is fixedly connected to the upper side of the fixed rod (287). The fixed rod (287) is slidably connected inside the through groove (285). After the extension plate (283) moves, the column (288) presses against the inner surface of the notch (286). The upper extension of the extension plate (283) and the surface of the line frame (263) are both hollow.

2. The ultra-quiet containerized energy storage power station according to claim 1, characterized in that: The guide (26) includes a servo motor (271) disposed on the upper left side of the fixed frame (21). The output end of the servo motor (271) is fixedly connected to a lead screw (272). The lead screw (272) is threadedly connected to a lead screw nut (273). A sleeve (274) is sleeved on the outside of the lead screw nut (273). The outside of the sleeve (274) is fixedly connected to the front side of the moving plate (24).

3. The ultra-quiet containerized energy storage power station according to claim 1, characterized in that: The control cabinet (11) is provided with a dust blowing assembly (29) on the left side, the dust blowing assembly (29) including positioning grooves (291) on the front and rear sides inside the extension plate (283).

4. The ultra-quiet containerized energy storage power station according to claim 3, characterized in that: The positioning groove (291) is connected to the movable groove (285). A pressing block (292) is slidably connected inside the positioning groove (291). A pressure sensor (294) is provided on the side of the movable groove (285) away from the positioning groove (291). A pressure spring (293) is provided between the pressing block (292) and the pressure sensor (294). One end of the pressure spring (293) is fixedly connected to the pressing block (292), and the other end of the pressure spring (293) is fixedly connected to the side of the movable groove (285) near the pressure sensor (294). Fans (295) are provided on both the front and rear sides of the right end of the movable plate (24). Both the pressure sensor (294) and the fans (295) are electrically connected to an external power supply.

5. The ultra-quiet containerized energy storage power station according to claim 1, characterized in that: The left side of the fixed frame (21) is provided with a flow guide assembly (3), which includes a guide frame (31) fixedly connected to the left side of the fixed frame (21).

6. The ultra-quiet containerized energy storage power station according to claim 5, characterized in that: The guide frame (31) has an air cavity (32) inside. The upper and lower sides of the inner surface of the guide frame (31) are fixedly connected with air outlet pipes (33) in a linear array. The air outlet pipes (33) are connected to the air cavity (32) and the air outlet pipes (33) face the wiring point of the control cabinet (11).

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