Frequency conversion cabinet

Abstract

The utility model discloses a frequency conversion cabinet, comprising a mounting frame; the electrical installation plate is arranged in the installation frame, the electrical installation plate is provided with a first face and a second face which are oppositely arranged, the first face is provided with an electrical assembly, the electrical installation plate is provided with a first threading groove and a second threading groove in a penetrating mode, and the first threading groove is arranged close to the bottom of the electrical installation plate; the cable connector is arranged at the bottom of the mounting frame and is close to the first surface, the cable connector is connected with a cable, and the cable penetrates to the second surface from the first threading groove and then penetrates to the first surface through the second threading groove so as to be connected with the electrical assembly. According to the technical scheme of the utility model, the frequency conversion cabinet can be connected with the external cable from the bottom, and meanwhile, the external connection cable can be tidily arranged when being connected to the electrical assembly, so that the overall operation experience of frequency conversion cabinet wiring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency conversion, in particular to a frequency conversion cabinet. Background Art

[0002] Most of the existing cables connecting the inverter cabinet to the outside are connected to the inverter cabinet from the front. When the cables are connected to the internal components of the inverter cabinet, they are mostly placed in a disorderly manner, which affects the overall wiring operation experience of the inverter cabinet. Utility Model Content

[0003] The main purpose of the utility model is to provide a frequency conversion cabinet, aiming to increase the overall operating experience of the frequency conversion cabinet wiring.

[0004] In order to achieve the above-mentioned purpose, the frequency conversion cabinet proposed by the utility model comprises:

[0005] Install the frame;

[0006] An electrical installation board is arranged in the installation frame, the electrical installation board has a first surface and a second surface arranged opposite to each other, the first surface is provided with an electrical component, the electrical installation board is penetrated by a first threading groove and a second threading groove, the first threading groove is arranged near the bottom of the electrical installation board; and

[0007] A cable connector is arranged at the bottom of the mounting frame and close to the first surface. The cable connector is connected to a cable. The cable passes through the first wire threading groove to the second surface, and then passes through the second wire threading groove to the first surface to be connected to the electrical component.

[0008] Optionally, a cable fixing frame is further included, and the cable fixing frame is located between the mounting frame and the second surface.

[0009] Optionally, the second wire threading groove is located above the first wire threading groove, and a plurality of cable fixing frames are provided between the first wire threading groove and the second wire threading groove, and the plurality of cable fixing frames are arranged at intervals along the height direction of the electrical installation board.

[0010] Optionally, the cable fixing frame includes a support rod and a limiting portion provided on the support rod, both ends of the support rod are respectively connected to the mounting frame, and the limiting portion and the support rod are surrounded to form a cable limiting groove.

[0011] Optionally, a wire collecting groove is provided in the installation frame, and the wire collecting groove is arranged close to the first surface, and the wire collecting groove is used for wiring harnesses inside the frequency converter cabinet.

[0012] Optionally, the electrical component includes a frequency converter, and the frequency converter includes a frequency converter chassis, a frequency converter body and a reactor arranged in the frequency converter chassis.

[0013] Optionally, the electrical component also includes a circuit breaker, a first three-phase output copper bar, a second three-phase output copper bar, a power terminal and a fuse, the first three-phase output copper bar and the second three-phase output copper bar are respectively arranged at the upper and lower ends of the circuit breaker, the power terminal is arranged on the first three-phase output copper bar, the power terminal is connected to the cable, and the fuse is arranged on the second three-phase output copper bar.

[0014] Optionally, the electrical installation board has a first electrical installation position for installing the first three-phase output copper busbar and the power terminal, and a position for installing the second three-phase output copper busbar and the fuse to form a second electrical installation position, and the first electrical installation position and / or the second electrical installation position are provided with a protective member covering the outside of the electrical component.

[0015] Optionally, the protective member includes a first panel arranged at the first electrical installation position, and a second panel arranged at the second electrical installation position, the first panel is connected to the electrical installation board via a first panel fixing member, and the second panel is connected to the electrical installation board via a second panel fixing member.

[0016] Optionally, a fan assembly is further included which is arranged on the top of the mounting frame.

[0017] The technical solution of the utility model is to arrange an electrical installation plate in the installation frame so that the main electrical components in the frequency conversion cabinet are installed on the first side of the electrical installation plate, and a first wire threading groove and a second wire threading groove are penetrated on the electrical installation plate, and a cable connector is arranged at the lower end of the installation frame near the first side of the electrical installation plate, so that after the frequency conversion cabinet is connected to the external cables through the cable connector wiring from the bottom, the cables can be passed through the first wire threading groove to the second side, and then from the second side through the second wire threading groove to the first side of the electrical installation board to be wired with the electrical components, so that the frequency conversion cabinet can be connected to the external cables from the bottom, and at the same time, it is ensured that the external cables are not interfered with by the electrical components on the front side of the electrical installation board when being connected to the electrical components, thereby increasing the overall operation experience of the frequency conversion cabinet wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure explosion of an embodiment of the frequency conversion cabinet of the utility model;

[0020] Figure 2This is a schematic diagram of the structure of the cable fixing frame in the frequency conversion cabinet of the utility model;

[0021] Figure 3 for Figure 2 A magnified view at point A;

[0022] Figure 4 This is a front view of the electrical installation board in the frequency conversion cabinet of the utility model;

[0023] Figure 5 for Figure 4 Enlarged view at B;

[0024] Figure 6 This is a schematic diagram of the installation of the protection components in the frequency conversion cabinet of the utility model;

[0025] Figure 7 It is a schematic diagram of the structural assembly of an embodiment of a frequency conversion cabinet of the utility model.

[0026] Description of Figure Numbers:

[0027] Label name Label name 10 Mounting frame 27 First Panel 11 Side panels 28 Second Panel 12 Front Panel 27a First panel fixing member 13 Back Plate 30 Fan assembly 20 Electrical mounting plate 40 breaker 21 Frequency Converter 50 The first three-phase output copper busbar 22 Cable holder 51 The second three-phase output copper busbar 23 First threading slot 60 Power terminal 24 Cable limit slot 70 Fuse 25 Cable Trough 80 Cable connector 26 Second threading slot 28a Second panel fixing piece

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Most of the existing cables connecting the inverter cabinet to the outside are connected to the inverter cabinet from the front. When the cables are connected to the internal components of the inverter cabinet, they are mostly placed in a disorderly manner, which affects the overall wiring operation experience of the inverter cabinet.

[0033] At the same time, the electrical components inside the frequency converter cabinet have no dust protection devices, and external dust and foreign objects can easily enter the internal electrical components. At the same time, operators can easily accidentally touch the copper busbars inside the electrical components during operation, causing accidental touches.

[0034] Therefore, the utility model proposes a frequency conversion cabinet.

[0035] Reference Figures 1 to 7 , Figure 1 This is a schematic diagram of the structure explosion of an embodiment of the frequency conversion cabinet of the utility model; Figure 2 This is a schematic diagram of the structure of the cable fixing frame in the frequency conversion cabinet of the utility model; Figure 3 for Figure 2 A magnified view at point A;

[0036] Figure 4 This is a front view of the electrical installation board 20 in the frequency conversion cabinet of the utility model; Figure 5 for Figure 4 Enlarged view at B; Figure 6 This is a schematic diagram of the installation of the protection components in the frequency conversion cabinet of the utility model; Figure 7 This is a schematic diagram of the structural assembly of the frequency conversion cabinet of the utility model.

[0037] In the embodiment of the utility model, the frequency conversion cabinet includes a mounting frame 10, an electrical mounting plate 20 and a cable connector 80; Figure 1-Figure 7As shown, a panel structure is provided on the periphery of the mounting frame 10, and an electrical installation board 20 is arranged in the mounting frame 10, having a first surface and a second surface arranged oppositely, the first surface facing the front of the frequency converter cabinet, and the second surface facing the back of the frequency converter cabinet, the first surface is provided with an electrical component, the electrical installation board 20 is penetrated by a first threading groove 23 and a second threading groove 26, the first threading groove is arranged near the bottom of the electrical installation board 20, a cable connector 80 is provided at the bottom of the mounting frame 10, the cable connector 80 is arranged near the first surface, the cable connector 80 is connected to the cable, the cable passes through the first threading groove 23 to the second surface, and then passes through the second threading groove 26 to the first surface to be connected to the electrical component.

[0038] In this embodiment, the cable connector 80 includes a plurality of PG36 waterproof connectors and a plurality of PG16 waterproof connectors, and both the PG36 waterproof connector and the PG16 waterproof connector are dustproof and waterproof.

[0039] The technical solution of the utility model adopts the method of arranging an electrical installation board 20 in the installation frame 10, so that the main electrical components in the frequency conversion cabinet are installed on the first side of the electrical installation board 20, and a first wire threading groove 23 and a second wire threading groove 26 are penetrated on the electrical installation board 20, and a cable connector 80 is arranged at the lower end of the installation frame 10 near the first side of the electrical installation board 20, so that after the frequency conversion cabinet is connected to the external cables through the cable connector 80 from the bottom, the cables can be passed through the first wire threading groove 23 to the second side, and then from the second side through the second wire threading groove 26 to the first side of the electrical installation board 20 to be connected to the electrical components, so that the frequency conversion cabinet can be connected to the external cables from the bottom, and at the same time, it is ensured that the external cables are not interfered by the electrical components on the front side of the electrical installation board 20 when connected to the electrical components, thereby increasing the overall operation experience of the frequency conversion cabinet wiring.

[0040] Furthermore, it also includes a cable fixing frame 22, which is located between the mounting frame 10 and the second surface. In this embodiment, the cable fixing frame 22 is fixed on the mounting frame 10. By arranging the cable fixing frame 22 between the mounting frame 10 and the second surface, the cables passing from the first threading groove 23 to the second surface can be bundled, so that the cables basically located on the second surface can be neatly arranged. In addition, in other embodiments, the cable fixing frame 22 can also be fixed on the second surface, or the cable fixing frame 22 is fixed to the second surface of the electrical installation board 20 and the mounting frame 10 at the same time.

[0041] Optionally, the second threading groove 26 is located above the first threading groove 23, and a plurality of cable fixing frames 22 are arranged between the first threading groove 23 and the second threading groove 26. Figure 2 As shown, a plurality of fixing frames are arranged at intervals along the height direction of the frequency converter cabinet.

[0042] In this embodiment, the number of cable fixing frames 22 is not less than two. When the length of the cable connecting the frequency converter cabinet to the outside is too long, the cable is bundled from the lowest cable fixing frame 22 and passed upward to the upper cable fixing frame for bundling. After the cable is bent to one side, it is passed downward from the upper cable fixing frame to the lower cable fixing frame, and the cable is repeatedly bound on the cable fixing frame 22 in a wave shape, so that the cable can be bound and fixed on the cable fixing frame 22 for multiple times, thereby increasing the bundling space at the back of the frequency converter cabinet and preventing the cable from being too long and exposed to affect the overall aesthetics.

[0043] Optionally, in conjunction with reference Figure 3 As shown, the cable fixing frame 22 includes a support rod and a limiting portion provided on the support rod, the two ends of the support rod are respectively connected to the mounting frame 10, and the limiting portion and the support rod are surrounded to form a cable limiting groove 24. In this embodiment, the limiting portion is a U-shaped or V-shaped plate-like structure, and the two ends of the opening of the limiting portion are fixed on the support rod. Specifically, the cable limiting groove 24 can be provided on the cable fixing frame 22, so that the cables are passed through the cable fixing groove for cable bundling, thereby ensuring that the cables are neatly and regularly routed.

[0044] In addition, in other embodiments, one or more cable limiting grooves 24 may be provided on a single cable fixing frame 22. When multiple cable limiting grooves 24 are provided on the cable fixing frame 22, cables connected to the outside may be arranged in a wave shape through the cable limiting grooves 24 of the upper and lower multiple cable fixing frames 22 on the back side of the electrical installation board 20, so that the back side of the electrical installation board 20 has a larger wiring space.

[0045] Optionally, a wire collecting groove 25 is provided in the installation frame 10, and the wire collecting groove 25 is arranged near the first surface of the electrical installation board 20. Specifically, by arranging the wire collecting groove 25 near the first surface of the electrical installation board 20, the wires connected between the electrical appliances inside the frequency converter cabinet can be bundled through the wire collecting groove 25.

[0046] Furthermore, the electrical component includes a frequency converter 21, and the frequency converter 21 includes a frequency converter chassis and a frequency converter body (not shown in the figure) arranged in the frequency converter chassis. A reactor is also arranged in the frequency converter chassis.

[0047] In this embodiment, the reactor is arranged in the frequency converter cabinet where the frequency converter body is placed, so that the reactor and the frequency converter 21 are arranged integrally, thereby avoiding the reactor occupying the installation space at the bottom of the frequency converter cabinet, allowing sufficient space at the bottom of the frequency converter cabinet to set the cable connector, so that the frequency converter cabinet can be wired from the bottom, and the external cables can be bundled from the second side of the electrical installation board 20, making the overall wiring of the frequency converter cabinet more beautiful. At the same time, the integral arrangement of the frequency converter 21 and the reactor can also allow the front of the electrical installation board 20 to have sufficient space to set the wire collection groove 25 for the regular placement of the wires inside the frequency converter cabinet.

[0048] Furthermore, the electrical assembly further includes a circuit breaker 40, a first three-phase output copper bar 50, a second three-phase output copper bar 51, a power terminal 60 and a fuse 70. Figure 5 As shown, the first three-phase output copper bar 50 and the second three-phase output copper bar 51 are respectively arranged at the upper and lower ends of the circuit breaker 40, the power terminal 60 is arranged at the first three-phase output copper bar 50, the cable is connected to the power terminal 60, and the fuse 70 is arranged at the second three-phase output copper bar 51. In this embodiment, the circuit breaker 40 adopts the TMAX XT5 molded case circuit breaker, and the power terminal 60 is used to fix the three-phase output copper bar, and at the same time provides the customer with an installation hole for internal wiring.

[0049] Specifically, when the cable passes from the second threading groove 26 to the first surface of the electrical installation board 20, the cable is connected to the power terminal 60 to supply power to the electrical components inside the frequency converter cabinet.

[0050] Further, the electrical installation board 20 has a first electrical installation position for installing the first three-phase output copper bar 50 and the power terminal 60, and a second electrical installation position for installing the second three-phase output copper bar 51 and the fuse 70. Figure 4 , Figure 5 , Figure 6 As shown, the first electrical installation position and / or the second electrical installation position is provided with a protective member covering the outside of the electrical component.

[0051] In this example, protective parts are provided at the positions of the first three-phase output copper busbar 50 and the power terminal 60, as well as at the positions of the second three-phase output copper busbar 51 and the fuse 70, to prevent the operator from touching the internal copper busbar assembly during operation, and to prevent external foreign matter from entering the internal devices, thereby playing a dust-proof protection role.

[0052] Optionally, the protection assembly includes a first panel 27 disposed at the first electrical installation position and a second panel 28 disposed at the second electrical installation position; Figure 4 , Figure 5 , Figure 6 As shown, the first panel 27 is connected to the electrical installation board 20 through the first panel fixing member 27a, and the second panel 28 is connected to the electrical installation board 20 through the second panel fixing member 28a. In this embodiment, the first panel 27 and the second panel 28 are both transparent panels, which can facilitate the operator to observe the working status of each electrical component under the panel covering position after the first panel 27 and the second panel 28 are installed, and also prevent the operator from contacting the internal copper busbar during operation, and prevent external foreign matter from entering the internal device.

[0053] In this embodiment, the above-mentioned first panel fixing member 27a and second panel fixing member 28a are both snap-on structures, and the installation position of the first panel 27 and the first panel fixing member 27a, as well as the installation position of the second panel 28 and the second panel fixing member 28a are both provided with snap-on grooves used in conjunction with the snap-on structures. When the first panel 27 is covered on the first electrical installation position, and when the second panel 28 is covered on the second electrical installation position, the snaps are snapped into the snap-on grooves, so that the first panel 27 and the second panel 28 are fixed.

[0054] In another embodiment, the first panel fixing member 27a and the second panel fixing member 28a adopt a threaded mounting seat, the threaded mounting seat is provided with a threaded mounting hole, and the positions where the first panel 27 and the second panel 28 are installed corresponding to the threaded mounting seat are penetrated with through holes. When the first panel 27 is covered on the first electrical installation position 27a, and the second panel 28 is covered on the second electrical installation position 28a, the through holes located on the first panel 27 and the second panel 28 are respectively opposite to the threaded holes on the corresponding threaded mounting seat, so that the first panel 27 and the second panel 28 can be installed and fixed by screws.

[0055] In this embodiment, the panel structure arranged on the periphery of the mounting frame 10 includes side panels 11 arranged on both sides of the mounting frame 10, a front panel 12 arranged on the front of the mounting frame 10, and a back panel 13 arranged on the back of the mounting frame 10. The side panels 11, the front panel 12 and the back panel 13 together form the panel structure of the frequency converter cabinet.

[0056] In this embodiment, a button assembly, a temperature controller assembly, a keyboard assembly and a nameplate mounting hole are provided on the front panel 12. When the button assembly, the temperature controller assembly and the keyboard assembly are connected to the inside of the frequency converter cabinet, the wiring inside the frequency converter cabinet is bundled through the wire trough to achieve the regular arrangement of the wiring inside the frequency converter cabinet.

[0057] Furthermore, in conjunction with reference Figure 1 , Figure 2 , Figure 7 As shown, a fan assembly 30 is also included which is arranged on the top of the mounting frame 10 .

[0058] In this embodiment, the fan assembly 30 includes a fan cover, which is arranged on the top of the frequency conversion cabinet. A fan is arranged inside the fan cover, and the air outlet of the fan is arranged toward the inside of the frequency conversion cabinet. The inside of the frequency conversion cabinet has a through hole connected to the fan cover, so that the output airflow of the fan can be blown into the inside of the frequency conversion cabinet to cool the frequency conversion cabinet. The outer periphery of the fan cover is provided with a plurality of air inlet slots arranged at intervals for air intake of the fan inside the fan cover. A fan mounting plate is also arranged inside the fan cover, and the fan mounting plate is used to install and fix the fan. The fan mounting plate is also provided with reinforcing ribs, and the reinforcing ribs are used to strengthen the structural strength of the fan mounting plate, so that the fan mounting plate has sufficient structural strength for installing the fan.

[0059] In addition, a capacitor mounting bracket is provided in the fan cover, and a capacitor assembly is mounted on the capacitor mounting bracket.

[0060] The technical solution of the utility model is to set an electrical installation board 20 in the installation frame 10, so that the main electrical components in the frequency conversion cabinet are installed on the first side of the electrical installation board 20, set a cable fixing frame 22 on the second side of the electrical installation board 20, and set a cable connector 80 close to the first side of the electrical installation board 20 at the lower end of the installation frame 10, so that the frequency conversion cabinet is connected to external cables through the cable connector 80 from the bottom, and the cables can be passed through the second side and bundled by the cable fixing frame 22, and then passed through the first side of the electrical installation board 20 to connect with the electrical components, so that the frequency conversion cabinet can be connected to external cables from the bottom, and at the same time, it is ensured that the external connection cables can be neatly arranged when connected to the electrical components, thereby increasing the overall aesthetics of the frequency conversion cabinet wiring, and at the same time, a wire collecting groove 25 is set on the first side of the electrical installation board 20, so that the wires connecting the electrical appliances inside the frequency conversion cabinet can be collected and bundled through the wire collecting groove 25.

[0061] At the same time, by setting the first panel 27 and the second panel 28 at the position of the first three-phase output copper busbar 50 and the power terminal 60 and the second three-phase output copper busbar 51 and the fuse 70, the operator can be prevented from touching the internal copper busbar assembly during operation, and foreign objects from the outside can be prevented from entering the internal devices, thereby playing a dust-proof protection role.

[0062] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A frequency conversion cabinet, characterized in that: include: Mounting frame (10); An electrical installation board (20) is arranged in the installation frame (10), the electrical installation board (20) having a first surface and a second surface arranged opposite to each other, the first surface being provided with an electrical component, the electrical installation board (20) being provided with a first threading groove (23) and a second threading groove (26), the first threading groove (23) being arranged close to the bottom of the electrical installation board (20); and A cable connector (80) is arranged at the bottom of the installation frame (10) and close to the first surface. The cable connector (80) is connected to a cable. The cable passes through the first threading groove (23) to the second surface, and then passes through the second threading groove (26) to the first surface to be connected to the electrical component.

2. The frequency conversion cabinet according to claim 1, characterized in that: It also includes a cable fixing frame (22), wherein the cable fixing frame (22) is located between the installation frame (10) and the second surface.

3. The frequency conversion cabinet according to claim 2, characterized in that: The second wire threading groove (26) is located above the first wire threading groove (23), and a plurality of cable fixing frames (22) are provided between the first wire threading groove (23) and the second wire threading groove (26). The plurality of cable fixing frames (22) are arranged at intervals along the height direction of the electrical installation board (20).

4. The frequency conversion cabinet according to claim 2, characterized in that: The cable fixing frame (22) comprises a support rod and a limiting portion provided on the support rod, the two ends of the support rod are respectively connected to the installation frame (10), and the limiting portion and the support rod are surrounded to form a cable limiting groove (24).

5. The frequency conversion cabinet according to claim 1, characterized in that: A wire collecting groove (25) is provided in the installation frame (10), and the wire collecting groove (25) is arranged close to the first surface. The wire collecting groove (25) is used for wiring harnesses inside the frequency conversion cabinet.

6. The frequency conversion cabinet according to claim 1, characterized in that: The electrical component comprises a frequency converter (21), and the frequency converter (21) comprises a frequency converter chassis, a frequency converter body and a reactor arranged in the frequency converter chassis.

7. The frequency conversion cabinet according to claim 1, characterized in that: The electrical component further comprises a circuit breaker (40), a first three-phase output copper bar (50), a second three-phase output copper bar (51), a power terminal (60) and a fuse (70); the first three-phase output copper bar (50) and the second three-phase output copper bar (51) are respectively arranged at the upper and lower ends of the circuit breaker (40); the power terminal (60) is arranged on the first three-phase output copper bar (50); the power terminal (60) is connected to the cable; and the fuse (70) is arranged on the second three-phase output copper bar (51).

8. The frequency conversion cabinet according to claim 7, characterized in that: The electrical installation board (20) has a first electrical installation position for installing the first three-phase output copper busbar (50) and the power terminal (60), and a second electrical installation position for installing the second three-phase output copper busbar (51) and a fuse (70), and the first electrical installation position and / or the second electrical installation position are provided with a protective member covering the outside of the electrical component.

9. The frequency conversion cabinet according to claim 8, characterized in that: The protective member comprises a first panel (27) arranged at the first electrical installation position, and a second panel (28) arranged at the second electrical installation position, the first panel (27) being connected to the electrical installation board (20) via a first panel fixing member (27a), and the second panel (28) being connected to the electrical installation board (20) via a second panel fixing member (28a).

10. The frequency conversion cabinet according to any one of claims 1 to 9, characterized in that: It also includes a fan assembly (30) arranged on the top of the mounting frame (10).

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