Main control frame component and frequency conversion cabinet

Abstract

The present application provides a main control frame assembly and a variable frequency cabinet. The main control frame assembly includes a mounting plate (1) and a support frame (2). The support frame (2) has a connection end. The mounting plate (1) is rotatably arranged on the side of the support frame (2) away from the connection end. A first wire routing hole (3) penetrating through the mounting plate (1) in the thickness direction is provided on the mounting plate (1), and a second wire routing hole (4) penetrating through the support frame (2) in the thickness direction is provided on the support frame (2). According to the main control frame assembly of the present application, the wire routing between the plates of the main control frame assembly can be optimized, the wiring rationality can be improved, and the wire routing difficulty can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of frequency converters, and particularly to a main control frame assembly and a frequency conversion cabinet. Background Art

[0002] In the situation of the continuous progress and development of electronic technology, the development of frequency converter technology and its equipment is gradually improving. For high-power diode frequency converters, they have been widely used, such as: heavy industry, water supply construction systems, central air conditioners, elevator operations, etc. However, the research and development of domestic frequency converters have not yet formed a complete system, and the structural design of frequency converters is not yet mature. Therefore, current high-power frequency converters are large in size, low in maintenance and installation levels, and high in failure rates.

[0003] Regarding the problems of high-power frequency converters requiring a compact structure and inconvenient assembly. At the same time, there are many electrical components involved in frequency converter equipment and difficult wiring, so the installation methods and layouts of internal components of frequency converters have relatively high requirements. For existing frequency converter equipment, various components are mostly arranged in the cabinet or separate chambers are set up. For some high-protection high-power frequency converters, according to the usual design principles, the installation of components, wiring methods, and layouts often cannot meet the requirements. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present application is to provide a main control frame assembly and a frequency conversion cabinet, which can optimize the wiring between plates of the main control frame assembly, improve the rationality of wiring, and reduce the wiring difficulty.

[0005] To solve the above problems, the present application provides a main control frame assembly, including a mounting plate and a support frame. The support frame includes a connection end, and the mounting plate is rotatably arranged on the side of the support frame away from the connection end. The mounting plate is provided with a first wiring hole penetrating through the mounting plate in the thickness direction, and the support frame is provided with a second wiring hole penetrating through the support frame in the thickness direction.

[0006] Preferably, a positioning connection hole is provided at the top of the mounting plate.

[0007] Preferably, the first wiring hole is provided at least at one of the top, left side, and right side of the mounting plate.

[0008] Preferably, a plurality of first wiring holes are arranged at intervals along the extension direction of the side where the first wiring hole is located.

[0009] Preferably, the mounting plate is hinged to the support frame through a hinge, and the mounting plate can be rotated by a preset angle along the direction away from the support frame.

[0010] Preferably, the support frame is of a U-shaped structure, the cross-section of the support frame is L-shaped, the folded plate of the support frame is located at the top of the support frame and is folded inwardly towards the U-shaped structure, and the second wire routing hole is located on the folded plate.

[0011] Preferably, bracket mounting members are respectively and fixedly arranged on the outer sides of the connection ends of the two side structures of the support frame, and fixing connection holes are arranged on the bracket mounting members.

[0012] Preferably, the bracket mounting member includes a first side plate and a second side plate. The first side plate is fixedly connected to the support frame, the second side plate bends away from the support frame, and the fixing connection hole is arranged on the second side plate.

[0013] Preferably, a hinge seat is arranged on one side of the support frame away from the connection end, and the mounting plate is hinged to the hinge seat through a hinge.

[0014] Preferably, the hinge seat is Z-shaped and includes a first plate, a second plate and a third plate connected in sequence. The first plate is fixedly connected to the support frame, the hinge is installed on the third plate, and the mounting plate is supported on the second plate.

[0015] Preferably, a grounding hole is formed in the support frame.

[0016] Preferably, the mounting plate is of an integral structure.

[0017] Preferably, a main control board is fixedly arranged on the mounting plate, and the first wire routing hole is located on the mounting plate around the main control board.

[0018] According to another aspect of the present application, a frequency conversion cabinet is provided, which includes a main control frame assembly, and the main control frame assembly is the above-mentioned main control frame assembly.

[0019] Preferably, the frequency conversion cabinet further includes a box body, a first fixing member is arranged at the top of the box body, and when the mounting plate is turned upwards to the first fixing member, it can be fixedly connected to the first fixing member.

[0020] Preferably, two second fixing members are arranged at intervals in the box body, and the left and right sides of the support frame are fixedly connected to the box body through the second fixing members.

[0021] Preferably, a refrigerant plate is fixedly arranged in the box body, and the main control frame assembly is located above the refrigerant plate.

[0022] Preferably, a power module assembly is fixedly arranged on the refrigerant plate, and the power module assembly is arranged directly below the main control frame assembly.

[0023] Preferably, a reactor assembly, a capacitor assembly and a circuit breaker assembly are further arranged in the box body.

[0024] The main control frame assembly provided by this application includes a mounting plate and a support frame. The support frame has a connection end, and the mounting plate is rotatably arranged on the side of the support frame away from the connection end. A first wire routing hole penetrating the mounting plate in the thickness direction is provided on the mounting plate, and a second wire routing hole penetrating the support frame in the thickness direction is provided on the support frame. This main control frame assembly uses the mounting plate and the support frame in cooperation, so that the mounting plate is located on the side of the support frame away from the connection end, which can make full use of the three-dimensional space and improve the layout rationality. At the same time, since wire routing holes are respectively provided on the mounting plate and the support frame, the left and right wire routing on the mounting plate can be routed through the support frame on the left and right sides of the mounting plate, thereby effectively avoiding wire interference, reducing the difficulty of main control wire routing, and improving the wire routing efficiency. Since the main control can be installed, removed, or routed separately on the left and right sides of the mounting plate, the installation and removal of the wire routing structure are more convenient, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the first axonometric view of the main control frame assembly according to an embodiment of this application;

[0026] Figure 2 is the second axonometric view of the main control frame assembly according to an embodiment of this application;

[0027] Figure 3 is the structural schematic diagram of the hinge seat of the main control frame assembly according to an embodiment of this application;

[0028] Figure 4 is the structural schematic diagram of the support frame of the main control frame assembly according to an embodiment of this application;

[0029] Figure 5 is the structural schematic diagram of a frequency conversion cabinet according to an embodiment of this application;

[0030] Figure 6 is the side view structural schematic diagram of a frequency conversion cabinet according to an embodiment of this application.

[0031] The reference numerals are shown as:

[0032] 1, mounting plate; 2, support frame; 3, first wire routing hole; 4, second wire routing hole; 5, positioning connection hole; 6, hinge; 7, folding plate; 8, bracket mounting part; 9, fixed connection hole; 10, hinge seat; 11, main control board; 12, box body; 13, first fixing part; 14, second fixing part; 15, refrigerant plate; 16, reactor assembly; 17, capacitor assembly; 18, circuit breaker assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Refer to in combination Figures 1 to 6As shown, according to an embodiment of the present application, the main control frame assembly includes a mounting plate 1 and a support frame 2. The support frame 2 includes a connection end. The mounting plate 1 is rotatably arranged on the side of the support frame 2 away from the connection end. A first wire routing hole 3 is provided on the mounting plate 1 and penetrates through the mounting plate 1 in the thickness direction. A second wire routing hole 4 is provided on the support frame 2 and penetrates through the support frame 2 in the thickness direction.

[0034] The main control frame assembly uses the mounting plate 1 and the support frame 2 in cooperation, so that the mounting plate 1 is located on the side of the support frame 2 away from the connection end, which can make full use of the three-dimensional space and improve the layout rationality. At the same time, since wire routing holes are respectively provided on the mounting plate 1 and the support frame 2, the left and right wire routing on the mounting plate 1 can be routed through the support frame 2 on the left and right sides of the mounting plate 1, thereby effectively avoiding wire interference, reducing the difficulty of main control wire routing, and improving the wire routing efficiency. Since the main control can be installed, removed, or wired separately on the left and right sides of the mounting plate 1, the installation and removal of the wire routing structure are more convenient, saving time and effort.

[0035] In one embodiment, a positioning connection hole 5 is provided at the top of the mounting plate 1. The positioning connection hole can be connected to a connection structure provided on the upper side of the mounting plate 1, thereby ensuring the stability and reliability of the installation and fixation of the mounting plate 1. For the convenience of connection and fixation, there are multiple positioning connection holes 5, which are arranged at intervals in the horizontal direction. The positioning connection hole 5 is an oval hole, which can provide a certain adjustment margin, facilitate the connection and fixation of the mounting plate 1, and reduce the connection difficulty.

[0036] A main control board 11 is fixedly arranged on the mounting plate 1. The first wire routing hole 3 is located on the mounting plate 1 around the main control board 11, which can facilitate the wires on the main control board 11 to be routed through the first wire routing hole 3, enter the space on the back side of the mounting plate 1, and then be branched through the support frame 2, improving the wiring rationality and reducing the wire routing difficulty.

[0037] In one embodiment, both the first wire routing hole 3 and the second wire routing hole 4 are round holes.

[0038] In one embodiment, the first wire routing hole 3 is provided at at least one of the top, left, and right sides of the mounting plate 1. In this embodiment, since the main control board 11 may need to be wired on each side, the first wire routing hole 3 is provided on the top, left, and right sides of the mounting plate 1, so that the main control board 11 can be wired from the nearest position when wiring, which is more convenient for wire branching and wiring, making the wiring clearer and the installation and removal simpler, more convenient, time-saving, and labor-saving.

[0039] In one embodiment, a plurality of first wire holes 3 are arranged at intervals along the extending direction of the side edge of the side where the first wire holes 3 are located. On each of the top, left, and right sides of the mounting plate 1, a plurality of first wire holes 3 are provided, so that the cables of the main control board 11 on the mounting plate 1 can be routed nearby, and further wire splitting can be carried out through the plurality of first wire holes 3 arranged at intervals, making the wiring clearer.

[0040] In one embodiment, the mounting plate 1 is hinged to the support frame 2 through a hinge 6, and the mounting plate 1 can be flipped by a preset angle along the direction away from the support frame 2. In this embodiment, since the mounting plate 1 can be flipped, when wiring operations or operations on the devices installed in the cabinet need to be performed inside the frequency conversion cabinet, the mounting plate 1 can be controlled to flip, so that the mounting plate 1 can be flipped forward, thereby leaving an operating space, which is more convenient for maintaining the main control device and the devices behind the main control.

[0041] In one embodiment, the support frame 2 is of a U-shaped structure, the cross section of the support frame 2 is L-shaped, the folded plate 7 of the support frame 2 is located at the top of the support frame 2 and is folded inwardly towards the U-shaped structure, and the second wire hole 4 is located on the folded plate 7. In this embodiment, the support frame 2 includes three L-shaped sheet metal parts, which are spliced into a U-shaped structure and fixedly connected together. They can be fixedly connected by bolts or welded together, which can form good structural strength and is convenient for processing.

[0042] In one embodiment, bracket mounting parts 8 are respectively fixedly arranged on the outer sides of the connection ends of the two side structures of the support frame 2, and fixing connection holes 9 are provided on the bracket mounting parts 8. In this embodiment, since the cross section of the support frame 2 is L-shaped, the L-shaped structure of its connection end is not convenient for connection, so an auxiliary connection structure needs to be added to reduce the installation difficulty of the support frame 2. By arranging the bracket mounting parts 8 at the connection ends of the support frame 2 and then providing the fixing connection holes 9 on the bracket mounting parts 8, the support frame 2 can be fixed on the box body by using the bracket mounting parts 8, reducing the installation difficulty of the support frame 2 and improving the installation efficiency.

[0043] In one embodiment, the bracket mount 8 includes a first side plate and a second side plate. The first side plate is fixedly connected to the support frame 2, and the second side plate is bent away from the support frame 2, with a fixing connection hole 9 provided on the second side plate. In this embodiment, the bracket mount 8 also adopts an L-shaped bent plate structure, where one side plate can be fixedly connected to the plate body of the support frame 2 to achieve the fixed connection between the bracket mount 8 and the support frame 2. Moreover, by utilizing the cooperation between plates, the bracket mount 8 and the support frame 2 can be fixedly connected by bolts, which can not only reduce the connection difficulty but also ensure the connection stability. The other side plate of the bracket mount 8 can be fitted to the mounting structure on the box body 12 and then fixedly connected by bolts, reducing the installation and fixing difficulty.

[0044] The bracket mount 8 adopts a structure similar to a triangle, which is convenient for disassembly and assembly and has good structural strength.

[0045] In one embodiment, a hinge seat 10 is provided on one side of the support frame 2 away from the connection end, and the mounting plate 1 is hinged to the hinge seat 10 through a hinge 6. The hinge seat 10 is detachably mounted on the support frame 2, which can facilitate the installation and disassembly of the mounting plate 1 on the support frame 2, reduce the installation difficulty, and is also convenient for maintenance.

[0046] The hinge seat 10 is in a Z shape and includes a first plate, a second plate, and a third plate connected in sequence. The first plate is fixedly connected to the support frame 2, the hinge 6 is mounted on the third plate, and the mounting plate 1 is supported on the second plate. In this embodiment, the hinge seat 10 is formed by bending a sheet metal part into a Z shape, where the first plate, the second plate, and the third plate are connected in sequence and adjacent two plates are perpendicular to each other. On the one hand, it can prevent the bolts for installing the hinge from interfering, and on the other hand, it can prevent the bolts for fixing the hinge seat 10 from interfering, cleverly avoiding the interference positions.

[0047] In one embodiment, a grounding hole is provided on the support frame 2 to ensure reliable grounding of the main control frame assembly and improve safety.

[0048] In one embodiment, the mounting plate 1 is of an integral structure, which is convenient for disassembly, assembly, and after-sales maintenance.

[0049] In this embodiment, a rotatable mounting plate 1 is adopted as the mounting structure of the main control board 11. For the left-side wiring of the mounting plate 1, wire ties are used to pass through round holes and are fixed to the left side of the support frame 2, and then follow the wiring to the left side of the frequency converter box body to be wired to the corresponding devices; the right-side wiring is also done in the same way, using wire ties to pass through round holes and fixed to the right side of the support frame 2, and then following the wiring to the right side of the frequency converter box body to be wired to the corresponding devices. The wiring is clear. Especially when the strong electrical lines are routed on one side and the weak electrical lines are routed on the other side, it can greatly reduce the interference between the strong and weak line signals, further improving the working reliability of the frequency converter.

[0050] According to an embodiment of the present application, the variable-frequency cabinet includes a main control frame assembly, and this main control frame assembly is the above-mentioned main control frame assembly.

[0051] In one embodiment, the variable-frequency cabinet further includes a box body 12, and a first fixing member 13 is arranged at the top of the box body 12. When the mounting plate 1 is turned upwards to the first fixing member 13, it can be fixedly connected to the first fixing member 13.

[0052] In one embodiment, two second fixing members 14 are arranged at intervals inside the box body 12, and the left and right sides of the support frame 2 are fixedly connected to the box body 12 through the second fixing members 14.

[0053] In one embodiment, a refrigerant plate 15 is fixedly arranged inside the box body 12, and the main control frame assembly is located above the refrigerant plate 15.

[0054] In one embodiment, a power module assembly is fixedly arranged on the refrigerant plate 15, and the power module assembly is arranged directly below the main control frame assembly. In this embodiment, the entire main control frame assembly is installed in the upper right of the variable-frequency cabinet box body 12, that is, directly above the refrigerant plate 15. The power module is installed on the right side of the refrigerant plate 15 and is located directly below the main control frame assembly. A drive board is installed on each power module assembly, so that the drive wiring is short and all are independent wiring, greatly reducing the interference of drive signals. When the main control frame assembly is turned over, there will be no hidden danger of wiring pulling.

[0055] In one embodiment, a reactor assembly 16, a capacitor assembly 17 and a circuit breaker assembly 18 are also arranged inside the box body 12.

[0056] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above-mentioned various advantageous ways can be freely combined and superimposed.

[0057] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only the preferred implementation manner of the present application. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and modifications can be made without departing from the technical principle of the present application, and these improvements and modifications should also be regarded as the protection scope of the present application.

Claims

1. A main control frame component, characterized in that, it includes a mounting plate (1) and a support frame (2). The support frame (2) has a connecting end. The mounting plate (1) is rotatably arranged on the side of the support frame (2) away from the connecting end. A first wire passing hole (3) penetrating through the mounting plate (1) in the thickness direction is provided on the mounting plate (1), and a second wire passing hole (4) penetrating through the support frame (2) in the thickness direction is provided on the support frame (2); The support frame (2) is of a U-shaped structure. The mounting plate (1) is arranged on the middle arm of the U-shaped structure. The second wire passing holes (4) are provided on both end arms of the U-shaped structure on both sides of the middle arm; The first wire passing holes (3) are provided on one side of the mounting plate (1) close to the two end arms.

2. The main control frame component according to claim 1, characterized in that, a positioning connection hole (5) is provided at the top of the mounting plate (1).

3. The main control frame component according to claim 1, characterized in that, the first wire passing hole (3) is provided at at least one of the top, left side and right side of the mounting plate (1).

4. The main control frame component according to claim 3, characterized in that, a plurality of the first wire passing holes (3) are arranged at intervals along the extending direction of the side where the first wire passing hole (3) is located.

5. The main control frame component according to any one of claims 1 to 4, characterized in that, the mounting plate (1) is hinged to the support frame (2) through a hinge (6), and the mounting plate (1) can be turned by a preset angle along the direction away from the support frame (2).

6. The main control frame component according to claim 5, characterized in that, the cross section of the support frame (2) is L-shaped. The folding plate (7) of the support frame (2) is located at the top of the support frame (2) and is folded inward to the U-shaped structure. The second wire passing hole (4) is located on the folding plate (7).

7. The main control frame component according to claim 6, characterized in that, bracket mounting parts (8) are respectively and fixedly arranged on the outer sides of the connecting ends of the two side structures of the support frame (2), and fixing connection holes (9) are provided on the bracket mounting parts (8).

8. The main control frame component according to claim 7, characterized in that, the bracket mounting part (8) includes a first side plate and a second side plate. The first side plate is fixedly connected to the support frame (2), the second side plate is bent away from the support frame (2), and the fixing connection hole (9) is provided on the second side plate.

9. The main control frame component according to claim 5, characterized in that, a hinge seat (10) is provided on the side of the support frame (2) away from the connecting end, and the mounting plate (1) is hinged to the hinge seat (10) through a hinge (6).

10. The main control frame component according to claim 9, characterized in that, The hinge base (10) is Z-shaped and includes a first plate, a second plate, and a third plate connected in sequence. The first plate is fixedly connected to the support frame (2), the hinge (6) is installed on the third plate, and the mounting plate (1) is supported on the second plate.

11. The main control frame assembly according to claim 1, characterized in that a grounding hole is provided on the support frame (2).

12. The main control frame assembly according to claim 1, characterized in that the mounting plate (1) is of an integral structure.

13. The main control frame assembly according to claim 1, characterized in that a main control board (11) is fixedly arranged on the mounting plate (1), and the first wire hole (3) is located on the mounting plate (1) on the periphery of the main control board (11).

14. A frequency conversion cabinet includes a main control frame assembly, characterized in that the main control frame assembly is the main control frame assembly according to any one of claims 1 to 13.

15. The frequency conversion cabinet according to claim 14, characterized in that the frequency conversion cabinet further includes a cabinet body (12), a first fixing member (13) is arranged at the top of the cabinet body (12), and when the mounting plate (1) is turned upwards to the first fixing member (13), it can be fixedly connected to the first fixing member (13).

16. The frequency conversion cabinet according to claim 15, characterized in that two second fixing members (14) are arranged at intervals in the cabinet body (12), and the left and right sides of the support frame (2) are fixedly connected to the cabinet body (12) through the second fixing members (14).

17. The frequency conversion cabinet according to claim 15, characterized in that a refrigerant plate (15) is fixedly arranged in the cabinet body (12), and the main control frame assembly is located above the refrigerant plate (15).

18. The frequency conversion cabinet according to claim 17, characterized in that a power module assembly is fixedly arranged on the refrigerant plate (15), and the power module assembly is arranged directly below the main control frame assembly.

19. The frequency conversion cabinet according to claim 15, characterized in that a reactor assembly (16), a capacitor assembly (17), and a circuit breaker assembly (18) are further arranged in the cabinet body (12).

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