Frequency conversion control cabinet with protective cover

Abstract

The utility model relates to a frequency conversion control cabinet with a protective cover. The frequency conversion control cabinet comprises a cabinet body and a fan assembly. A hollow area is arranged in the middle of a top plate of the cabinet body, and the fan assembly is installed on the top of the cabinet body and covers the hollow area. The fan assembly comprises a supporting fence, a fan and a protective cover; the supporting fence is fixed to the top of the cabinet body, and the hollow area is located in the supporting fence. A supporting plate is fixed to the middle of the top of the supporting fence, and the fan is installed in the middle of the lower surface of the supporting plate and right faces the hollow area. The inner top of the protective cover is fixedly connected with the top of the supporting fence, and the protective cover covers the supporting fence; a gap is reserved between the bottom of the protective cover and the top of the cabinet body. According to the utility model, by designing the structure of the fan assembly, the wind power to the indoor top is reduced without influencing the heat dissipation of the cabinet body.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a frequency converter control cabinet with a protective cover. Background Technology

[0002] A variable frequency drive (VFD) control cabinet is an electrical control device used to regulate the speed and operating status of a motor. Its core function is to achieve efficient and energy-saving control of the motor by changing the power supply frequency. To improve the heat dissipation efficiency inside the VFD control cabinet, a fan is usually installed inside the cabinet to accelerate heat dissipation.

[0003] Currently, fans are usually installed at the top of the cabinet. The hot air inside the cabinet is drawn out by the fan and discharged upwards. In some special situations, when the ceiling of the room is low to the ground, dust on the ceiling can be easily blown up, causing pollution to the indoor working environment.

[0004] The aim is to provide a frequency converter control cabinet with a protective enclosure to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a frequency converter control cabinet with a protective cover. By designing the structure of the fan assembly, the wind force on the indoor ceiling is reduced without affecting the heat dissipation of the cabinet.

[0006] To achieve the above-mentioned purpose of the utility model, a frequency converter control cabinet with a protective cover is provided, including a cabinet body and a fan assembly;

[0007] The top panel of the cabinet has a hollow area in the middle, and the fan assembly is installed on the top of the cabinet and covers the hollow area;

[0008] The fan assembly includes a support fence, a fan, and a protective cover;

[0009] The support fence is fixed to the top of the cabinet, and the hollow area is located inside the support fence;

[0010] A support plate is fixed at the top center of the support fence, and the fan is installed at the center of the lower surface of the support plate, directly facing the hollow area.

[0011] The top of the inner part of the protective cover is fixedly connected to the top of the supporting fence, and the protective cover covers the supporting fence.

[0012] There is a gap between the bottom of the protective cover and the top of the cabinet.

[0013] Preferably, the protective cover has four side walls that extend outward at an angle, forming a structure that is smaller at the top and larger at the bottom.

[0014] Preferably, the cabinet door has ventilation holes at the bottom, and the inner side of the ventilation holes is covered with a filter screen.

[0015] Preferably, a gap is left between the bottom of the inner wall of the cabinet and the bottom of the cabinet;

[0016] The bottom of the inner wall of the cabinet and the bottom of the cabinet form a receiving cavity;

[0017] The accommodating chamber is provided with wiring holes, and the bottom of the inner wall of the cabinet is fixed to the cabinet body by several support plates with bolts.

[0018] Preferably, the inner wall of the rear end of the cabinet has a mounting frame, and the channel of the mounting frame is vertical.

[0019] Preferably, the inner wall of the cabinet is provided with reinforcing ribs.

[0020] Preferably, the top corners of the cabinet are provided with lifting lugs.

[0021] This utility model discloses a frequency converter control cabinet with a protective cover, which has the following advantages compared with the prior art:

[0022] (1) The protective cover in the fan assembly is placed on the support fence and has a gap with the top of the cabinet. Without affecting heat dissipation, it increases the path of hot air discharged from the cabinet and effectively reduces the wind force on the indoor ceiling.

[0023] (2) Simple structure and easy to use. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a frequency converter control cabinet with a protective cover according to this embodiment;

[0025] Figure 2 This is a schematic diagram of the cabinet structure in this embodiment;

[0026] Figure 3 This is a schematic diagram of the wind turbine assembly in this embodiment;

[0027] Figure 4 This is an exploded view of the wind turbine assembly in this embodiment;

[0028] Figure 5 This is a schematic diagram of the internal structure of the cabinet in this embodiment. Figure 1 ;

[0029] Figure 6 This is a schematic diagram of the internal structure of the cabinet in this embodiment. Figure 2 . Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 As shown, a variable frequency control cabinet with a protective cover includes a cabinet body 1 and a fan assembly 2.

[0032] like Figure 2 As shown, the top plate of the cabinet 1 has a hollow area 3 in the middle, and the fan assembly 2 is installed on the top of the cabinet 1 and covers the hollow area 3.

[0033] like Figure 3 and Figure 4 As shown, the fan assembly 2 includes a support fence 4, a fan 5, and a protective cover 6; the support fence 4 is fixed to the top of the cabinet 1, and the hollow area 3 is located inside the support fence 4; a support plate 7 is fixed at the middle position of the top of the support fence 4, and the fan 5 is installed at the middle position of the lower surface of the support plate 7, facing the hollow area 3; the top of the inner part of the protective cover 6 is fixedly connected to the top of the support fence 4, and the protective cover 6 covers the support fence 4; the bottom of the protective cover 6 is spaced from the top of the cabinet 1.

[0034] In this embodiment, as Figure 4 As shown, the protective cover 6 extends obliquely outward around its four sides, forming a structure that is smaller at the top and larger at the bottom. This arrangement allows the hot air blocked by the protective cover 6 to flow obliquely downward first, further effectively reducing the wind force of the hot air on the indoor ceiling. On the other hand, it effectively increases the protective area, further enhancing the ability of external foreign objects to enter the cabinet 1.

[0035] In this implementation, such as Figure 1 As shown, the cabinet 1 has a heat dissipation hole 8 at the bottom of the cabinet door. The inner side of the heat dissipation hole 8 is covered with a filter screen (not shown in the drawing). On the one hand, it works with the fan 5 to form air circulation inside the cabinet 1; on the other hand, it plays a heat dissipation role in winter or other low temperature environments, while foreign objects from the outside are blocked by the filter screen.

[0036] In this embodiment, as Figure 5 As shown, a gap is left between the bottom of the inner wall of the cabinet 1 and the bottom of the cabinet 1; the bottom of the inner wall of the cabinet 1 and the bottom of the cabinet 1 form a receiving chamber 9; the receiving chamber 9 is provided with wiring holes 10, such as... Figure 6 As shown, the bottom of the inner wall of the cabinet 1 is fixed to the cabinet 1 by bolts using several support plates 11. This arrangement allows external cables to enter the receiving chamber 9 through wiring holes 10. Removing the corresponding support plates 11 allows the cables to be electrically connected to the electrical components inside the cabinet 1, facilitating the connection of external cables. Furthermore, the bottom of the cabinet 1 is provided with horizontally inwardly flanged edges 12, which improves sealing performance.

[0037] In this embodiment, as Figure 5 As shown, the inner wall of the rear end of the cabinet 1 has a mounting frame 13, and the channel of the mounting frame 13 is vertical. With this setting, frequently used switches can be installed on the mounting frame 13 for easy access by staff. In addition, the channel on the mounting frame 13 facilitates wiring.

[0038] In this embodiment, as Figure 5 As shown, the inner wall of the cabinet 1 is provided with reinforcing ribs 14, which serve to improve the strength of the cabinet 1.

[0039] In this embodiment, as Figure 1 As shown, each of the top corners of the cabinet 1 is provided with a lifting lug 15 to facilitate the transfer of the cabinet 1 by an external lifting device.

[0040] When the aforementioned frequency converter control cabinet needs heat dissipation, the fan 5 is started, and the hot air inside the cabinet 1 is drawn out by the fan 5. A small amount of hot air flows out from the gap between the top of the cabinet 1 and the protective cover 6. Most of the hot air is blocked by the inner wall of the protective cover 6 and then discharged obliquely downwards, effectively reducing the amount of hot air reaching the top of the room.

[0041] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A frequency converter control cabinet with a protective cover, characterized in that, Including cabinet and fan assembly; The top panel of the cabinet has a hollow area in the middle, and the fan assembly is installed on the top of the cabinet and covers the hollow area; The fan assembly includes a support fence, a fan, and a protective cover; The support fence is fixed to the top of the cabinet, and the hollow area is located inside the support fence; A support plate is fixed at the top center of the support fence, and the fan is installed at the center of the lower surface of the support plate, directly facing the hollow area. The top of the inner part of the protective cover is fixedly connected to the top of the supporting fence, and the protective cover covers the supporting fence. There is a gap between the bottom of the protective cover and the top of the cabinet.

2. The frequency converter control cabinet with a protective cover according to claim 1, characterized in that, The protective cover has four side walls that extend outward at an angle, forming a structure that is smaller at the top and larger at the bottom.

3. A frequency converter control cabinet with a protective cover according to claim 1 or 2, characterized in that, The cabinet door has ventilation holes at the bottom, and the inner side of the ventilation holes is covered with a filter screen.

4. A frequency converter control cabinet with a protective cover according to claim 1, characterized in that, A gap is left between the bottom of the inner wall of the cabinet and the bottom of the cabinet; The bottom of the inner wall of the cabinet and the bottom of the cabinet form a receiving cavity; The accommodating chamber is provided with wiring holes, and the bottom of the inner wall of the cabinet is fixed to the cabinet body by several support plates with bolts.

5. A frequency converter control cabinet with a protective cover according to claim 1, characterized in that, The cabinet has a mounting frame on its rear inner wall, and the channel of the mounting frame is vertical.

6. A frequency converter control cabinet with a protective cover according to claim 1, characterized in that, The inner wall of the cabinet is reinforced with ribs.

7. A frequency converter control cabinet with a protective cover according to claim 1, characterized in that, The cabinet is equipped with lifting lugs at the top corners.

Images