Frequency converter control cabinet

Abstract

The utility model provides a frequency converter control cabinet, and relates to the technical field of frequency converters. The frequency converter control cabinet comprises a base; the shell is arranged on the base, and an accommodating cavity is formed in the shell; the drawing sliding rail is arranged in the containing cavity, the drawing sliding rail comprises a fixed part and a sliding part, the fixed part is connected with the shell, the sliding part is connected with the fixed part in a sliding mode, and the sliding part can slide between a first position in the containing cavity and a second position outside the containing cavity; and the terminal plate is connected with the sliding part. The width of the frequency converter control cabinet can be reduced, and the overall size of the frequency converter control cabinet is further reduced.

Description

Technical Field

[0001] This application relates to the technical field of frequency converters, and more particularly, to a frequency converter control cabinet. Background Art

[0002] In the related art, the high-voltage frequency conversion regulation technology has excellent speed regulation performance, perfect protection functions, significant energy-saving effects, and is easy to interface with the automatic control system to achieve automatic adjustment nodes, etc., and has been widely used.

[0003] For the convenience of assembly, the electrical components of the high-voltage frequency converter control cabinet are generally laid flat in the cabinet, resulting in a generally large size of the high-voltage frequency conversion cabinet. Utility Model Content

[0004] This application aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] To this end, this application proposes a frequency converter control cabinet.

[0006] In view of this, this application provides a frequency converter control cabinet, including: a base; a housing disposed on the base, the housing including a receiving cavity; a draw rail disposed in the receiving cavity, the draw rail including a fixed portion and a sliding portion, the fixed portion being connected to the housing, the sliding portion being slidably connected to the fixed portion, and the sliding portion being capable of sliding between a first position within the receiving cavity and a second position outside the receiving cavity; and a terminal board connected to the sliding portion.

[0007] In this technical solution, the high-voltage frequency conversion regulation technology has good speed regulation performance and is widely used in high-voltage large-capacity rotating equipment such as power plant conveying, induced draft fans, feed water pumps, drain pumps, ash slurry pumps, and coal mills. The high-voltage frequency conversion equipment is controlled by a frequency converter control cabinet, and the frequency converter control cabinet generally needs on-site assembly and wiring. To ensure the convenience of assembly and wiring, it is necessary to ensure sufficient space inside the frequency converter control cabinet, which results in a large overall size of the frequency converter control cabinet.

[0008] In response to the above problems, an embodiment of this application proposes a frequency converter control cabinet, which includes a base and a housing. The housing is disposed on the base, and a receiving cavity is formed inside the housing for receiving the electrical components of the frequency converter control cabinet. Among them, a draw rail and a terminal board are disposed in the receiving cavity, and most of the high-power electrical components of the frequency converter control cabinet are disposed on the terminal board.

[0009] The terminal board is connected to the draw slide rail, and the terminal board can be stored in the accommodation cavity or pulled out of the accommodation cavity through the draw slide rail. Exemplarily, the draw slide rail includes a fixed part and a sliding part. Among them, the fixed part is connected to the housing, and the sliding part is slidably connected to the fixed part and can slide relative to the fixed part. The terminal board is connected to the sliding part. When the sliding part is in the first position, the entire terminal board is inside the accommodation cavity. When the sliding part is in the second position, at least part of the terminal board is outside the accommodation cavity.

[0010] By arranging the terminal board through the draw slide rail, the terminal board can be moved outside the frequency converter control cabinet. When performing operations such as assembling, wiring, and debugging the electrical components on the terminal board, by pulling the terminal board out of the accommodation cavity, sufficient operating space can be ensured. When the terminal board is located inside the accommodation cavity, since no operating space is required, the internal space of the frequency converter control cabinet can be reduced, so that the frequency converter control cabinet no longer needs to "lay out" all electrical components in the cabinet, the width of the frequency converter control cabinet can be reduced, and thus the overall volume of the frequency converter control cabinet can be reduced.

[0011] In some embodiments, the cabinet body of the frequency converter control cabinet includes a housing, a base, and a draw slide rail, and can be pre-assembled in a pre-production manner, so that the cabinet body and the terminal board are transported separately during transportation, and the terminal board is installed and configured on site.

[0012] In this application, by arranging the draw slide rail, the terminal board of the frequency converter control cabinet can be pulled out of the cabinet body of the frequency converter control cabinet. Therefore, there is no need to reserve a large space inside the frequency converter control cabinet as an operating space, and the size of the frequency converter control cabinet can be effectively reduced.

[0013] In addition, the frequency converter control cabinet in the above technical solution provided by this application may also have the following additional technical features:

[0014] In some technical solutions of this application, optionally, the frequency converter control cabinet further includes: a control board, which is arranged in the accommodation cavity and is communicatively connected to the terminal board; an interface board, which is arranged in the accommodation cavity and is electrically connected to the control board.

[0015] In this technical solution, the frequency converter control cabinet further includes a control board and an interface board. Among them, the control board is the main control board of the frequency converter control cabinet. Exemplarily, a control chip is arranged on the control board. Interface devices are arranged on the interface board, and the control board is electrically connected to both the terminal board and the interface board.

[0016] Exemplarily, the electrical components on the interface board and the control board are weak-current components. By separately arranging the control board, the interface board, and the terminal board, the separation of strong-current and weak-current devices in the frequency converter control cabinet can be achieved, which can avoid the influence of the strong-current part on the weak-current part and improve the reliability of the frequency converter control cabinet.

[0017] In some technical solutions of the present application, optionally, the frequency converter control cabinet further includes: a partition board, which is arranged in the accommodation cavity, and the control board and the interface board are arranged on the partition board; wherein, the partition board divides the accommodation cavity into a first accommodation cavity and a second accommodation cavity, the control board and the interface board are located in the first accommodation cavity, and the terminal board is located in the second accommodation cavity.

[0018] In this technical solution, the frequency converter control cabinet further includes a partition board, which is arranged in the accommodation cavity and divides the space of the accommodation cavity into a first accommodation cavity and a second accommodation cavity. Exemplarily, the partition board is located above the terminal board. At this time, the accommodation cavity is divided into a first accommodation cavity above the partition board and a second accommodation cavity below the partition board.

[0019] The control board and the interface board are arranged on the partition board. Exemplarily, the control board and the interface board can be pre-installed on the partition board at the factory and transported together with the partition board. The partition board is installed on site according to actual needs, and the sizes of the first accommodation cavity and the second accommodation cavity are adjusted through the installation position of the partition board.

[0020] The control board and the interface board are weak current components, and the terminal board is a strong current component. The weak current components and the strong current components are respectively located in different accommodation cavities on both sides of the partition board, which can further achieve electrical isolation between the weak current part and the strong current part, thereby reducing the influence of the electric field generated during the operation of the strong current part on the weak current part and improving the reliability of the frequency converter control cabinet.

[0021] In some technical solutions of the present application, optionally, the terminal board includes an upper end face and a lower end face; the draw rail includes: an upper rail, the sliding part of the upper rail is connected to one side of the terminal board close to the upper end face; a lower rail, the sliding part of the lower rail is connected to one side of the terminal board close to the lower end face; wherein, both the upper rail and the lower rail are located between the terminal board and the housing.

[0022] In this technical solution, after the terminal board is installed in the accommodation cavity, the end of the terminal board close to the top of the frequency converter control cabinet is defined as the upper end face, and the end of the terminal board close to the base is defined as the lower end face. The number of draw rails is at least two, specifically including an upper rail and a lower rail. Among them, the lower rail is located between the upper rail and the base. The draw rail is located between the terminal board and the housing, and the upper rail is connected to one side of the terminal board close to the upper end face, and the lower rail is connected to one side of the terminal board close to the lower end face.

[0023] By respectively arranging the upper rail and the lower rail on the upper and lower end faces of the terminal board, the reliability of the connection between the terminal board and the housing can be improved, preventing the single rail from deforming under the influence of the weight of the terminal board and causing the terminal board to sink. At the same time, the double-rail design can improve the stability and smoothness when pulling out the terminal board.

[0024] In some technical solutions of the present application, optionally, the inverter control cabinet also includes: an upper pad, which is connected to the upper end surface; a lower pad, whose first end is connected to the lower end surface, and whose second end can contact the base.

[0025] In this technical solution, the upper end face and the lower end face of the terminal board are respectively provided with an upper pad and a lower pad, and illustratively, the upper pad and the lower pad are both nylon pads. By providing nylon pads on the upper end face and the lower end face of the terminal board, it is possible to avoid friction between the terminal board and the metal part of the inverter control cabinet, reduce the pulling resistance, and make the terminal board smoother during the pulling process.

[0026] At the same time, by setting the upper pad and the lower pad, the end face of the terminal board can be protected to a certain extent when installing the terminal board, preventing the terminal board from directly contacting the ground and reducing the damage to the terminal board structure caused by bumps that may occur during the installation process.

[0027] In some technical solutions of the present application, optionally, the pull-out slide rail further includes: a limit member, which is arranged on the fixed part, and when the sliding part is in the second position, the limit member contacts at least part of the sliding part to limit the sliding part.

[0028] In this technical solution, a limit piece is provided on the pull-out slide rail, and illustratively, the limit piece may be a limit block, which is installed at the fixed part, and the limit piece is installed at the end of the travel of the fixed part. Exemplarily, the limit piece may be a limit slider, and a locking structure is provided on the limit slider. When the locking structure is not locked, the limit slider can slide relative to the fixed part, and when the locking structure is locked, the limit slider is fixed relative to the fixed part.

[0029] When the sliding part slides to the second position relative to the fixed part, at least part of the sliding part contacts the limiting member. At this time, the limiting member limits the position of the sliding part, so that the sliding part cannot continue to slide outward, thereby preventing the terminal board from falling due to the sliding part leaving the travel range of the fixed part, thereby improving the safety and reliability of the sliding of the terminal board.

[0030] In some technical solutions of the present application, optionally, the shell includes an opening connected to the accommodating cavity; the inverter control cabinet also includes: a door body, which is openably connected to the shell and is used to open or close the opening.

[0031] In this technical solution, the shell includes an opening, which connects the accommodating cavity and the external space of the inverter control cabinet. When the terminal board and the sliding part slide from the first position to the second position, the terminal board and the sliding part leave the interior of the accommodating cavity through the opening.

[0032] At the opening, a door body capable of covering the opening is provided. When the door body is closed, the opening is covered by the door body, and at this time, devices such as the terminal board, the control board, and the interface board are not exposed. When the door body is opened, the terminal board can be pulled out of the accommodation cavity through the sliding rail. At this time, the terminal board is located outside the frequency converter control cabinet, and sufficient assembly space can be provided to perform operations such as assembling, wiring, and maintaining the terminal board.

[0033] The technical solution of this application can improve the safety of the frequency converter control cabinet by setting the door body.

[0034] In some technical solutions of this application, the frequency converter control cabinet further includes: a control panel, which is arranged on the door body and is communicatively connected to the control board.

[0035] In this technical solution, a control panel is also provided on the frequency converter control cabinet. The control panel is communicatively connected to the control board. The control panel is the human-machine interaction interface of the frequency converter control cabinet. Users can master the real-time working condition information of the frequency converter through the control panel and control the operation of the frequency converter.

[0036] Exemplarily, the control panel is a touch screen, which can display the real-time working condition data of the frequency converter control cabinet and the frequency converter body, and display fault information when a possible fault occurs.

[0037] In some technical solutions of this application, optionally, the frequency converter control cabinet further includes: an uninterruptible power supply, which is located in the accommodation cavity, is connected to the base, and there is an electrical clearance between the uninterruptible power supply and the terminal board; wherein, the uninterruptible power supply is electrically connected to the terminal board, the control board, the interface board, and the control panel.

[0038] In this technical solution, an uninterruptible power supply (UPS) is provided in the frequency converter control cabinet. The uninterruptible power supply is arranged in the accommodation cavity and on the base. The uninterruptible power supply can temporarily supply power to the electrical components in the frequency converter control cabinet when the external power supply is disconnected.

[0039] Among them, the uninterruptible power supply is electrically connected to the terminal board, the control board, the interface board, and the control panel, and provides energy for the terminal board, the control board, the interface board, and the control panel when the external power supply is cut off, to avoid electrical damage caused by the instantaneous power failure of the above electrical equipment during abnormal power failure.

[0040] Exemplarily, a safe electrical clearance is left between the uninterruptible power supply and the terminal board, which can ensure the electrical safety of the frequency converter control cabinet.

[0041] In some technical solutions of the present application, optionally, the housing includes: a profile frame, which is connected to the base; a top plate, which is provided at one end of the profile frame away from the base and is connected to the profile frame; side plates, which are provided on the periphery of the profile frame and are connected to the profile frame, and the side plates, the top plate and the base enclose a receiving cavity, and the fixing part is connected to the side plate.

[0042] In this technical solution, the housing includes a profile frame, a top plate and side plates. Exemplarily, the profile frame is a nine-fold profile frame, and the side plates specifically include a left side plate, a right side plate and a back plate, and the side plates are specifically side plates made of metal.

[0043] The profile frame is connected to the base, and both the side plates and the top plate are connected to the profile frame. Among them, the side plates, the top plate and the base enclose the above-mentioned receiving cavity. The front of the profile frame is an opening, and a door body is provided at the opening. Exemplarily, the door body is connected to the profile frame through a hinge.

[0044] The fixing part of the draw rail is connected to the side plate. Exemplarily, the fixing part of the draw rail is connected to the left side plate or the right side plate.

[0045] In the present application, the cabinet body of the frequency converter control cabinet is formed by a profile frame, a top plate, a door body, side plates and a base. Structures such as a partition plate and a terminal plate can be transported separately from the cabinet body and installed on site, realizing modular production of the frequency converter control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0047] Figure 1 The structural schematic diagram of the frequency converter control cabinet showing some embodiments of the present application is shown;

[0048] Figure 2 The structural schematic diagram of the frequency converter control cabinet showing some embodiments of the present application is shown;

[0049] Figure 3 The structural schematic diagram of the frequency converter control cabinet showing some embodiments of the present application is shown;

[0050] Figure 4 The structural schematic diagram of the draw rail showing some embodiments of the present application is shown.

[0051] REFERENCE SIGNS

[0052] 100 Frequency converter control cabinet, 102 base, 104 housing, 1042 accommodation cavity, 10422 first accommodation cavity, 10424 second accommodation cavity, 1044 profile frame, 1046 top plate, 1048 side plate, 106 pull-out slide rail, 1062 fixing part, 1064 sliding part, 1066 upper slide rail, 1068 lower slide rail, 108 terminal board, 110 control board, 112 interface board, 114 partition board, 116 upper cushion block, 118 lower cushion block, 120 limiting part, 122 control panel, 124 uninterruptible power supply, 126 door body. Detailed implementation manners

[0053] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0054] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0055] The following refers to Figures 1 to 4 Describe the frequency converter control cabinet 100 provided according to some embodiments of the present application.

[0056] In some embodiments of the present application, a frequency converter control cabinet is provided. Figure 1 、 Figure 2 And Figure 3 Show the structural schematic diagram of the frequency converter control cabinet of some embodiments of the present application. Figure 4 Show the structural schematic diagram of the pull-out slide rail of some embodiments of the present application, as Figure 1 、 Figure 2 、 Figure 3 And Figure 4 As shown, the frequency converter control cabinet 100 includes: a base 102; a housing 104, the housing 104 is arranged on the base 102, and the housing 104 includes an accommodation cavity 1042; a pull-out slide rail 106, the pull-out slide rail 106 is arranged in the accommodation cavity 1042, the pull-out slide rail 106 includes a fixing part 1062 and a sliding part 1064, the fixing part 1062 is connected to the housing 104, the sliding part 1064 is slidably connected to the fixing part 1062, and the sliding part 1064 can slide between a first position inside the accommodation cavity 1042 and a second position outside the accommodation cavity 1042; a terminal board 108, the terminal board 108 is connected to the sliding part 1064.

[0057] In this technical solution, the high-voltage frequency conversion regulation technology has good speed regulation performance and is widely used in high-voltage large-capacity rotating equipment such as power plant conveyors, induced draft fans, feed water pumps, drain pumps, ash slurry pumps, and coal mills. The high-voltage frequency conversion equipment is controlled by a frequency converter control cabinet 100. Generally, the frequency converter control cabinet 100 needs to be assembled and wired on-site. To ensure the convenience of assembly and wiring, it is necessary to ensure sufficient space inside the frequency converter control cabinet 100, which results in a large overall size of the frequency converter control cabinet 100.

[0058] In view of the above problems, an embodiment of the present application provides a frequency converter control cabinet 100, which includes a base 102 and a housing 104. The housing 104 is disposed on the base 102, and an accommodation cavity 1042 is formed inside the housing 104 for accommodating the electrical components of the frequency converter control cabinet 100. Among them, a draw rail 106 and a terminal board 108 are disposed in the accommodation cavity 1042, and most of the high-voltage electrical components of the frequency converter control cabinet 100 are disposed on the terminal board 108.

[0059] The terminal board 108 is connected to the draw rail 106. The terminal board 108 can be received into the accommodation cavity 1042 or pulled out of the accommodation cavity 1042 through the draw rail 106. Exemplarily, the draw rail 106 includes a fixed part 1062 and a sliding part 1064. Among them, the fixed part 1062 is connected to the housing 104, and the sliding part 1064 is slidably connected to the fixed part 1062 and can slide relative to the fixed part 1062. The terminal board 108 is connected to the sliding part 1064. When the sliding part 1064 is in the first position, the entire terminal board 108 is inside the accommodation cavity 1042. When the sliding part 1064 is in the second position, at least a part of the terminal board 108 is outside the accommodation cavity 1042.

[0060] By arranging the terminal board 108 through the draw rail 106, the terminal board 108 can be moved outside the frequency converter control cabinet 100. When performing operations such as assembling, wiring, and debugging the electrical components on the terminal board 108, by pulling the terminal board 108 out of the accommodation cavity 1042, sufficient operating space can be ensured. When the terminal board 108 is located inside the accommodation cavity 1042, since there is no longer a need for operating space, the internal space of the frequency converter control cabinet 100 can be reduced, so that the frequency converter control cabinet 100 no longer needs to "lay out" all the electrical components in the cabinet, and the width of the frequency converter control cabinet 100 can be reduced, thereby reducing the overall volume of the frequency converter control cabinet 100.

[0061] In some embodiments, the cabinet of the frequency converter control cabinet 100 includes a housing 104, a base 102, and a drawer slide 106, and can be pre-assembled in a pre-production manner, so that the cabinet body and the terminal board 108 are transported separately during transportation, and the terminal board 108 is installed and configured on site.

[0062] By providing the drawer slide 106 in the present application, the terminal board 108 of the frequency converter control cabinet 100 can be pulled out of the cabinet body of the frequency converter control cabinet 100. Therefore, there is no need to reserve a large space inside the frequency converter control cabinet 100 as an operation space, and the size of the frequency converter control cabinet 100 can be effectively reduced.

[0063] In some technical solutions of the present application, optionally, as Figure 1 shown, the frequency converter control cabinet 100 further includes: a control board 110, which is arranged in the accommodation cavity 1042, and the control board 110 is communicatively connected to the terminal board 108; an interface board 112, which is arranged in the accommodation cavity 1042, and the interface board 112 is electrically connected to the control board 110.

[0064] In this technical solution, the frequency converter control cabinet 100 further includes a control board 110 and an interface board 112. Among them, the control board 110 is the main control board of the frequency converter control cabinet 100. Exemplarily, a control chip is arranged on the control board 110. Interface devices are arranged on the interface board 112, and the control board 110 is electrically connected to both the terminal board 108 and the interface board 112.

[0065] Exemplarily, the electrical components on the interface board 112 and the control board 110 are weak electrical components. By separately arranging the control board 110, the interface board 112 and the terminal board 108, the strong and weak electrical components in the frequency converter control cabinet 100 can be separated, which can avoid the influence of the strong electrical part on the weak electrical part and improve the reliability of the frequency converter control cabinet 100.

[0066] In some technical solutions of the present application, optionally, as Figure 1 shown, the frequency converter control cabinet 100 further includes: a partition board 114, which is arranged in the accommodation cavity 1042, and the control board 110 and the interface board 112 are arranged on the partition board 114; wherein, the partition board 114 divides the accommodation cavity 1042 into a first accommodation cavity 10422 and a second accommodation cavity 10424, the control board 110 and the interface board 112 are located in the first accommodation cavity 10422, and the terminal board 108 is located in the second accommodation cavity 10424.

[0067] In this technical solution, the frequency converter control cabinet 100 further includes a partition plate 114. The partition plate 114 is disposed in the accommodation cavity 1042 and divides the space of the accommodation cavity 1042 into a first accommodation cavity 10422 and a second accommodation cavity 10424. Exemplarily, the partition plate 114 is located above the terminal board 108. At this time, the accommodation cavity 1042 is divided into a first accommodation cavity 10422 above the partition plate 114 and a second accommodation cavity 10424 below the partition plate 114.

[0068] The control board 110 and the interface board 112 are disposed on the partition plate 114. Exemplarily, the control board 110 and the interface board 112 can be pre-installed on the partition plate 114 at the factory and transported together with the partition plate 114. The partition plate 114 is installed on site according to actual requirements, and the sizes of the first accommodation cavity 10422 and the second accommodation cavity 10424 are adjusted through the installation position of the partition plate 114.

[0069] The control board 110 and the interface board 112 are weak current components, and the terminal board 108 is a strong current component. The weak current components and the strong current components are respectively located in different accommodation cavities 1042 on both sides of the partition plate 114, which can further achieve electrical isolation between the weak current part and the strong current part, thereby reducing the influence of the electric field generated during the operation of the strong current part on the weak current part and improving the reliability of the frequency converter control cabinet 100.

[0070] In some technical solutions of the present application, optionally, as Figure 1 shown, the terminal board 108 includes an upper end face and a lower end face; the draw slide rail 106 includes: an upper slide rail 1066, and the sliding part 1064 of the upper slide rail 1066 is connected to one side of the terminal board 108 close to the upper end face; a lower slide rail 1068, and the sliding part 1064 of the lower slide rail 1068 is connected to one side of the terminal board 108 close to the lower end face; wherein, both the upper slide rail 1066 and the lower slide rail 1068 are located between the terminal board 108 and the housing 104.

[0071] In this technical solution, after the terminal board 108 is installed in the accommodation cavity 1042, the end of the terminal board 108 close to the top of the frequency converter control cabinet 100 is defined as the upper end face, and the end of the terminal board 108 close to the base 102 is defined as the lower end face. The number of draw slide rails 106 is at least two, specifically including an upper slide rail 1066 and a lower slide rail 1068. Among them, the lower slide rail 1068 is located between the upper slide rail 1066 and the base 102. The draw slide rail 106 is located between the terminal board 108 and the housing 104, and the upper slide rail 1066 is connected to one side close to the upper end face of the terminal board 108, and the lower slide rail 1068 is connected to one side close to the lower end face of the terminal board 108.

[0072] By respectively arranging an upper sliding rail 1066 and a lower sliding rail 1068 on the upper and lower end faces of the terminal board 108, the reliability of the connection between the terminal board 108 and the housing can be improved, preventing the single sliding rail from deforming under the influence of the weight of the terminal board 108 and causing the terminal board 108 to sink. At the same time, the double-sliding rail design can improve the stability and smoothness when pulling out the terminal board 108.

[0073] In some technical solutions of the present application, optionally, as Figure 1 and Figure 2 shown, the frequency converter control cabinet 100 further includes: an upper cushion block 116, which is connected to the upper end face; a lower cushion block 118, the first end of the lower cushion block 118 is connected to the lower end face, and the second end of the lower cushion block 118 can be in contact with the base 102.

[0074] In this technical solution, an upper cushion block 116 and a lower cushion block 118 are respectively arranged on the upper and lower end faces of the terminal board 108. Exemplarily, both the upper cushion block 116 and the lower cushion block 118 are nylon cushion blocks. By arranging nylon cushion blocks on the upper and lower end faces of the terminal board 108, the friction between the terminal board 108 and the metal part of the frequency converter control cabinet 100 can be avoided, the pulling resistance can be reduced, and the terminal board 108 can be made more smooth during the pulling process.

[0075] At the same time, by arranging the upper cushion block 116 and the lower cushion block 118, it can also play a certain protective role on the end face of the terminal board 108 when installing the terminal board 108, preventing the terminal board 108 from directly contacting the ground and reducing the damage to the structure of the terminal board 108 caused by possible bumps during the installation process.

[0076] In some technical solutions of the present application, optionally, as Figure 1 and Figure 4 shown, the pulling sliding rail 106 further includes: a limiting member 120, the limiting member 120 is arranged on the fixed part 1062, and in the case where the sliding part 1064 is in the second position, the limiting member 120 is in contact with at least part of the sliding part 1064 to limit the sliding part 1064.

[0077] In this technical solution, a limiting member 120 is arranged on the pulling sliding rail 106. Exemplarily, the limiting member 120 can be a limiting block, the limiting member 120 is installed at the end of the stroke of the fixed part 1062. Exemplarily, the limiting member 120 can be a limiting sliding block, and a locking structure is arranged on the limiting sliding block. When the locking structure is not locked, the limiting sliding block can slide relative to the fixed part 1062, and when the locking structure is locked, the limiting sliding block is fixed relative to the fixed part 1062.

[0078] When the sliding part 1064 slides relative to the fixed part 1062 to the second position, at least part of the sliding part 1064 comes into contact with the limiting part 120. At this time, the limiting part 120 limits the position of the sliding part 1064, so that the sliding part 1064 cannot continue to slide outwards, thereby preventing the problem that the terminal board 108 drops due to the sliding part 1064 breaking away from the stroke range of the fixed part 1062, and improving the safety and reliability of the sliding of the terminal board 108.

[0079] In some technical solutions of the present application, optionally, as Figure 1 , Figure 2 and Figure 3 shown, the housing 104 includes an opening communicating with the accommodation cavity 1042; the frequency converter control cabinet 100 further includes: a door body 126, the door body 126 is connected to the housing 104 in an openable and closable manner, and the door body 126 is used to open or close the opening.

[0080] In this technical solution, the housing 104 includes an opening, and the opening communicates with the accommodation cavity 1042 and the external space of the frequency converter control cabinet 100. When the terminal board 108 and the sliding part 1064 slide from the first position to the second position, the terminal board 108 and the sliding part 1064 leave the inside of the accommodation cavity 1042 through the opening.

[0081] At the opening, there is a door body 126 capable of covering the opening. When the door body 126 is closed, the opening is covered by the door body 126. At this time, devices such as the terminal board 108, the control board 110, and the interface board 112 are not exposed. When the door body 126 is opened, the terminal board 108 can be pulled out of the accommodation cavity 1042 through the draw rail 106. At this time, the terminal board 108 is located outside the frequency converter control cabinet 100, and sufficient assembly space can be provided to perform operations such as assembly, wiring, and maintenance on the terminal board 108.

[0082] The technical solution of the present application can improve the safety of the frequency converter control cabinet 100 by providing the door body 126.

[0083] In some technical solutions of the present application, optionally, as Figure 1 shown, the frequency converter control cabinet 100 further includes: a control panel 122, the control panel 122 is arranged on the door body 126 and is communicatively connected to the control board.

[0084] In this technical solution, a control panel 122 is further provided on the frequency converter control cabinet 100. The control panel 122 is communicatively connected to the control board. The control panel 122 serves as the human-machine interaction interface of the frequency converter control cabinet 100. Users can master the real-time operating conditions information of the frequency converter through the control panel 122 and control the operation of the frequency converter. Exemplarily, the control panel 122 is a touch screen, which can display the real-time operating conditions data of the frequency converter control cabinet 100 and the frequency converter body, and display fault information when possible faults occur.

[0085] In some technical solutions of the present application, optionally, as Figure 1 shown, the frequency converter control cabinet 100 further includes: an Uninterruptible Power Supply (UPS) 124. The uninterruptible power supply 124 is located in the accommodation cavity 1042 and is connected to the base 102. There is an electrical clearance between the uninterruptible power supply 124 and the terminal board 108. Among them, the uninterruptible power supply 124 is electrically connected to the terminal board 108, the control board 110, the interface board 112, and the control panel 122.

[0086] In this technical solution, an uninterruptible power supply 124 is provided in the frequency converter control cabinet 100. The uninterruptible power supply 124 is arranged in the accommodation cavity 1042 and on the base 102. The uninterruptible power supply 124 can temporarily supply power to the electrical components in the frequency converter control cabinet 100 when the external power supply is disconnected.

[0087] Among them, the uninterruptible power supply 124 is electrically connected to the terminal board 108, the control board 110, the interface board 112, and the control panel 122, and provides energy to the terminal board 108, the control board 110, the interface board 112, and the control panel 122 when the external power supply is cut off, avoiding electrical damage caused by the instantaneous power-off of the above electrical equipment during abnormal power-off.

[0088] Exemplarily, a safe electrical clearance is left between the uninterruptible power supply 124 and the terminal board 108, which can ensure the electrical safety of the frequency converter control cabinet 100.

[0089] In some technical solutions of the present application, optionally, as Figure 1 、 Figure 2 and Figure 3 shown, the housing 104 includes: a profile frame 1044, the profile frame 1044 is connected to the base 102; a top plate 1046, the top plate 1046 is arranged at one end of the profile frame 1044 away from the base 102 and is connected to the profile frame 1044; side plates 1048, the side plates 1048 are arranged on the periphery of the profile frame 1044 and are connected to the profile frame 1044. The side plates 1048, the top plate 1046, and the base 102 enclose to form the accommodation cavity 1042, and the fixing part 1062 is connected to the side plate 1048.

[0090] In this technical solution, the shell 104 includes a profile frame 1044, a top plate 1046 and a side plate 1048. Exemplarily, the profile frame 1044 is a nine-fold profile frame 1044, and the side plate 1048 specifically includes a left plate, a right plate and a back plate. The side plate 1048 is specifically a side plate 1048 made of metal.

[0091] The profile frame 1044 is connected to the base 102, and the side panels 1048 and the top panel 1046 are both connected to the profile frame 1044, wherein the side panels 1048, the top panel 1046 and the base 102 enclose the above-mentioned accommodating cavity 1042. The front of the profile frame 1044 is an opening, and a door body 126 is provided at the opening. Exemplarily, the door body 126 is connected to the profile frame 1044 by a hinge.

[0092] The fixing portion 1062 of the pull-out slide rail 106 is connected to the side panel 1048 . For example, the fixing portion 1062 of the pull-out slide rail 106 is connected to the left panel or the right panel.

[0093] The present application forms a cabinet body of the inverter control cabinet 100 through a profile frame 1044, a top plate 1046, a door body 126, a side panel 1048 and a base 102. Structures such as the partition plate 114 and the terminal board 108 can be transported separately from the cabinet body and installed on site, thereby realizing modular production of the inverter control cabinet 100.

[0094] In some embodiments of the present application, a high-voltage inverter control cabinet 100 with a narrow width and a pull-out terminal board 108 is provided. The cabinet body adopts a pull-out terminal board 108, the terminal board 108 is connected to the side board 1048 of the cabinet body through a pull-out slide rail 106, the control board and the interface board 112 are installed on the partition board 114, and the optional UPS is installed on the base 102.

[0095] In the embodiment of the present application, the profile frame 1044, the side panels 1048, the top panel 1046, the base 102 and the cabinet door form a control cabinet body, which is separated from other cabinets and formed into an independent cabinet. The cabinet width is small, and the terminal board 108 is retractable, which is convenient for maintenance. The terminal board 108 is connected to the cabinet body through the pull-out slide rail 106, and nylon pads are installed at the upper and lower parts to make the pull-out smoother. The anti-slip limiter 120 is installed at the end of the travel of the pull-out slide rail 106. The control board and the interface board 112 are installed on the partition plate 114, and the partition plate 114 and the terminal board 108 are distributed up and down in the cabinet and can be assembled separately. The optional UPS is installed on the base 102 to ensure a safe electrical gap.

[0096] In the description of this application, the term "a plurality of" means two or more. Unless otherwise clearly defined, the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application. Terms such as "connection", "installation", and "fixation" should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0097] In the description of this application, the description of terms such as "one embodiment", "some embodiments", and "specific embodiments" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0098] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, various changes and modifications can be made to this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A frequency converter control cabinet, characterized in that: include: Base; A shell, the shell is arranged on the base, and the shell includes a containing cavity; A pull-out slide rail, the pull-out slide rail is arranged in the accommodating cavity, the pull-out slide rail comprises a fixed portion and a sliding portion, the fixed portion is connected to the shell, the sliding portion is slidably connected to the fixed portion, and the sliding portion can slide between a first position in the accommodating cavity and a second position outside the accommodating cavity; A terminal plate is connected to the sliding portion.

2. The frequency converter control cabinet according to claim 1, characterized in that: Also includes: A control board, the control board is arranged in the accommodating cavity, and the control board is communicatively connected with the terminal board; An interface board is disposed in the accommodating cavity and is electrically connected to the control board.

3. The frequency converter control cabinet according to claim 2, characterized in that: Also includes: A partition plate, the partition plate is arranged in the accommodating cavity, and the control board and the interface board are arranged on the partition plate; The partition plate divides the accommodating chamber into a first accommodating chamber and a second accommodating chamber, the control board and the interface board are located in the first accommodating chamber, and the terminal board is located in the second accommodating chamber.

4. The frequency converter control cabinet according to any one of claims 1 to 3, characterized in that: The terminal board includes an upper end surface and a lower end surface; the drawer rail includes: An upper slide rail, a sliding portion of the upper slide rail being connected to a side of the terminal board close to the upper end surface; A lower lower rail, the sliding portion of which is connected to a side of the terminal board close to the lower end surface; Wherein, the upper slide rail and the lower slide rail are both located between the terminal board and the shell.

5. The frequency converter control cabinet according to claim 4, characterized in that: Also includes: An upper pad block connected to the upper end surface; A lower pad, wherein a first end of the lower pad is connected to the lower end surface, and a second end of the lower pad can contact the base.

6. The frequency converter control cabinet according to claim 4, characterized in that: The pull-out slide rail also includes: A limiting member is provided on the fixing portion, and when the sliding portion is in the second position, the limiting member contacts at least a portion of the sliding portion to limit the sliding portion.

7. The frequency converter control cabinet according to claim 2 or 3, characterized in that: The housing includes an opening communicating with the accommodating cavity; the inverter control cabinet also includes: A door body is connected to the shell in an openable and closable manner, and is used to open or close the opening.

8. The frequency converter control cabinet according to claim 7, characterized in that: Also includes: A control panel is arranged on the door body and is communicatively connected with the control board.

9. The frequency converter control cabinet according to claim 8, characterized in that: Also includes: An uninterruptible power supply, the uninterruptible power supply is located in the accommodating cavity and connected to the base, and there is an electrical gap between the uninterruptible power supply and the terminal board; Wherein, the uninterruptible power supply is electrically connected to the terminal board, the control board, the interface board and the control panel.

10. The frequency converter control cabinet according to any one of claims 1 to 3, characterized in that: The housing comprises: A profile frame connected to the base; A top plate, the top plate is arranged at one end of the profile frame away from the base and connected to the profile frame; A side plate is arranged on the peripheral side of the profile frame and connected to the profile frame. The side plate, the top plate and the base enclose the accommodating cavity, and the fixing portion is connected to the side plate.

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