Heat dissipation device for power distribution control switch cabinet

Abstract

The utility model provides a heat dissipation device for a power distribution control switch cabinet, which comprises a plurality of fan shells, the fan shells are arranged on two side surfaces of the switch cabinet, the middle part of one end of each fan shell is provided with an air inlet communicated with the switch cabinet, the side surface of each fan shell is provided with an air outlet, and a mounting shaft is arranged in each fan shell. The installation shafts are rotationally connected with the end, away from the air inlet, of the fan shell, the installation shafts located in the fan shell are provided with fans or impellers, and the installation shafts on the two sides are driven by the same driving device to rotate. When the cooling device is used, the double-end motor rotates and can drive the mounting shafts on the two sides to rotate at the same time, so that each fan shell can exhaust air outwards, heat emitted by electrical equipment in the middle of the switch cabinet can be quickly exhausted, and the cooling effect is achieved; when the switch cabinet works at the same time, heat in the switch cabinet can be quickly discharged outwards.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for switchgear, specifically a heat dissipation device for power distribution control switchgear. Background Technology

[0002] A switchgear is an electrical device primarily used in power systems for opening, closing, controlling, and protecting electrical equipment during power generation, transmission, distribution, and energy conversion. Switchgear contains instruments, magnetic switches, various AC contactors, circuit breakers, disconnect switches, load switches, operating mechanisms, instrument transformers, and various protective devices. All these electrical components generate heat during operation, especially instrument transformers.

[0003] Existing switchgear requires fans for cooling, but the cooling effect of ordinary fans is limited, especially in hot summers when the internal temperature of the switchgear, being made of metal, is even higher, making cooling with ordinary fans significantly less effective. Therefore, we propose a cooling device for power distribution control switchgear. Utility Model Content

[0004] This utility model provides a heat dissipation device for power distribution control switchgear, which has the advantages of exhausting air on both sides of the switchgear with a large exhaust volume and a wide area, thus solving the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A heat dissipation device for a power distribution control switch cabinet is designed, including multiple fan housings. The fan housings are installed on both sides of the switch cabinet. An air inlet communicating with the switch cabinet is provided in the middle of one end of the fan housing. An air outlet is provided on the side of the fan housing. An installation shaft is provided inside the fan housing. The installation shaft is rotatably connected to the end of the fan housing away from the air inlet. The air inlets are all located inside the switch cabinet. The air inlets on the same side are respectively connected to the side of the strip shell. A strip opening is provided on the surface of the opposite side of the two strip shells. A fan or impeller is provided on the installation shaft located inside the fan housing, and the installation shafts on both sides are driven to rotate by the same drive device.

[0006] Preferably, the drive device includes a dual-head motor mounted on the top of the switch cabinet. The two ends of the dual-head motor are respectively connected to the drive shaft. A transmission wheel is provided at the end of the drive shaft and the end of each mounting shaft. The transmission wheels on the same side are connected by a transmission belt.

[0007] Preferably, multiple mounting ports are provided on both sides of the switch cabinet, one end of the fan housing is placed in the mounting port, and a flange edge is provided on the side of the fan housing, which is detachably connected to the edge of the mounting port.

[0008] Preferably, the fan casing has a detachable end cover at one end near the drive wheel, and the mounting shaft is rotatably mounted in the middle of the end cover.

[0009] Preferably, air inlets are provided on both sides of the bottom of the switch cabinet.

[0010] Preferably, the bottom of the switch cabinet is provided with an air inlet channel, both ends of which are connected to air inlet windows, and an upward-blowing nozzle is provided at the top of the air inlet channel.

[0011] Preferably, the end of the drive shaft is rotatably disposed within a support, which is mounted on the top of the switch cabinet.

[0012] Preferably, the top of the switch cabinet is provided with a first protective cover to cover the drive device, and the two sides of the switch cabinet are respectively provided with second protective covers to cover the fan housing. The side of the second protective cover facing the air outlet is provided with a ventilation opening for exhaust.

[0013] Compared with the prior art, when this utility model is in use, the rotation of the dual-head motor can simultaneously drive the mounting shafts on both sides to rotate, allowing each fan housing to exhaust air outwards. This allows the heat generated by the electrical equipment in the middle of the switch cabinet to be quickly discharged, thereby achieving a cooling effect. The large number of fan housings on both sides, when working simultaneously, can quickly exhaust the heat inside the switch cabinet. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front structural diagram of the present invention.

[0016] Figure 2 This is a structural diagram of the back of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of the present invention after the protective cover has been removed. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the structure of the present invention after the protective cover has been removed. Figure 2 .

[0019] Figure 5 This is the front view of the present utility model.

[0020] In the diagram: 1. First protective cover; 2. Louvered exhaust vent; 3. Second protective cover; 4. Switch cabinet; 5. Ventilation opening; 6. Air inlet window; 7. Strip shell; 8. Dual-head motor; 9. Drive shaft; 10. Transmission wheel; 11. Support; 12. Air outlet; 13. Mounting shaft; 14. Fan housing; 15. End cover; 16. Strip opening; 17. Air nozzle; 18. Air inlet channel; 19. Mounting port; 20. Air inlet; 21. Flange edge. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figures 1 to 5 This utility model provides a technical solution: a heat dissipation device for a power distribution control switchgear, comprising multiple fan housings 14, the fan housings 14 being mounted on the switchgear 4, such as... Figure 3 As shown, specifically, the fan housing 14 is installed on both sides of the switch cabinet 4, and the number of fan housings 14 on both sides of the switch cabinet 4 is equal, such as... Figure 3 and Figure 4 There are three fan housings 14 in each case. In actual use, the number of fan housings 14 can be set according to the height of switch cabinet 4.

[0023] It should be noted that, as Figure 5 As shown, during the installation of electrical equipment, such as current collectors, meters, circuit breakers, and transformers, these devices are installed in the middle of the inner cavity of the switch cabinet 4. This allows the fan housings 14 to be distributed on both sides of the electrical equipment installation area, because an air inlet 20 communicating with the switch cabinet 4 is provided at the middle of one end of the fan housing 14 (e.g., Figure 5 As shown), the air inlet 20 is aligned with the installation area of ​​the electrical equipment. An air outlet 12 is provided on the side of the fan housing 14. An installation shaft 13 is provided inside the fan housing 14. The installation shaft 13 is rotatably connected to the end of the fan housing 14 away from the air inlet 20. A fan or impeller is provided on the installation shaft 13 located inside the fan housing 14. When the installation shaft 13 rotates, it can drive the fan or impeller to rotate, and a negative pressure can be generated inside the fan housing 14, causing the air inside the switch cabinet 4 to move towards the inside of the fan housing 14, and finally be discharged from the air outlet 12 to the outside of the switch cabinet 4, so that the heat around the electrical equipment is drawn away.

[0024] The mounting shafts 13 on both sides are driven to rotate by the same drive device, as detailed below. Figure 3As shown, the drive unit includes a dual-head motor 8 mounted on the top of the switch cabinet 4. Both ends of the dual-head motor 8 are connected to a drive shaft 9. A transmission wheel 10 is mounted on the end of the drive shaft 9 and the end of each mounting shaft 13. The transmission wheels 10 on the same side are connected by a transmission belt, which can be a pulley or a synchronous pulley. Therefore, when the dual-head motor 8 rotates, it drives the mounting shafts 13 on both sides to rotate, allowing each fan casing 14 to exhaust air outwards. This allows the heat generated by the electrical equipment in the middle of the switch cabinet 4 to be quickly dissipated, thus achieving a cooling effect.

[0025] This application also proposes a specific installation method for the fan casing 14, such as... Figure 4 As shown, multiple mounting ports 19 are provided on both sides of the switch cabinet 4. One end of the fan housing 14 is placed in the mounting port 19, and a flange edge 21 is provided on the side of the fan housing 14. The flange edge 21 is detachably connected to the edge of the mounting port 19. Specifically, the flange edge 21 is fastened to the edge of the mounting port 19 by bolts.

[0026] Meanwhile, the air inlets 20 are also placed inside the switch cabinet 4 through the mounting port 19, meaning that all air inlets 20 on both sides are located inside the switch cabinet 4. Furthermore, the air inlets 20 on the same side are connected to the sides of the strip-shaped shells 7. The opposing surfaces of the two strip-shaped shells 7 are provided with strip-shaped openings 16. The air inlets 20 can be connected in series through the strip-shaped shells 7, forming an air intake at the strip-shaped openings 16. Figure 5 As shown, the air intakes are distributed on both sides of the electrical equipment, which increases the air intake area.

[0027] Furthermore, an end cover 15 is detachably provided at one end of the fan housing 14 near the drive wheel 10. Specifically, the edge of the end cover 15 is fastened to the edge of the fan housing 14 with bolts, and the mounting shaft 13 is rotatably installed in the middle of the end cover 15. This allows each fan housing 14 to be opened, making it convenient to maintain the impeller or fan.

[0028] Furthermore, air inlets 6 are provided on both sides of the bottom of the switch cabinet 4;

[0029] like Figure 3 and Figure 4 As shown, the bottom of the switch cabinet 4 is provided with an air inlet channel 18. Both ends of the air inlet channel 18 are connected to the air inlet window 6. At the top of the air inlet channel 18, there is an upward blowing nozzle 17. The nozzle 17 has a strip structure, and its length is approximately the same as the bottom width of the electrical equipment. When the switch cabinet 4 is closed, a negative pressure area is formed inside it. Outside air enters the air inlet channel 18 through the air inlet window 6 and finally flows out from the nozzle 17 and blows towards the electrical equipment.

[0030] Furthermore, the end of the drive shaft 9 is rotatably mounted within the support 11, which is installed on the top of the switch cabinet 4. The support 11 is used to support the drive shaft 9, preventing the drive shaft 9 from becoming unstable due to its large span.

[0031] Based on the above implementation, the dual-head motor 8, drive shaft 9, and transmission wheel 10 are all exposed. In order to prevent debris from getting into the transmission belt, a first protective cover 1 is specially provided on the top of the switch cabinet 4 to cover the drive device. In addition, a second protective cover 3 is provided on both sides of the switch cabinet 4 to cover the fan housing 14. The side of the second protective cover 3 facing the air outlet 12 is provided with a ventilation opening 5 for exhaust. The air blown out from the air outlet 12 can be discharged through the ventilation opening 5.

[0032] Based on the above implementation, further optimization can be achieved by installing protective nets inside the ventilation opening 5 and the air inlet window 6, as well as inside the strip opening 16.

[0033] Based on the above implementation, it can be further optimized, with both ends of the air intake channel 18 connected to the edge of the air intake window 6 via flanges.

[0034] Based on the above implementation, it can be further optimized by installing a fan on the rotating shaft or drive shaft 9 of the dual-head motor 8 and providing a louvered exhaust port 2 on the side of the first protective cover 1, which helps to dissipate heat from the dual-head motor 8.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation device for a power distribution control switchgear, characterized in that, Includes multiple fan housings (14), which are installed on both sides of the switch cabinet (4); The fan housing (14) has an air inlet (20) at one end of the middle that communicates with the switch cabinet (4), and an air outlet (12) on the side of the fan housing (14). The fan housing (14) has an installation shaft (13) inside, which is rotatably connected to the end of the fan housing (14) away from the air inlet (20). The air inlets (20) are all located inside the switch cabinet (4), and the air inlets (20) on the same side are respectively connected to the side of the strip shell (7). The two strip shells (7) have strip openings (16) on the opposite side surface. A fan or impeller is provided on the mounting shaft (13) located inside the fan housing (14), and the mounting shafts (13) on both sides are driven to rotate by the same drive device.

2. The heat dissipation device for power distribution control switchgear as described in claim 1, characterized in that, The drive unit includes a double-headed motor (8) installed on the top of the switch cabinet (4), with both ends of the double-headed motor (8) connected to the drive shaft (9); A drive wheel (10) is provided at the end of the drive shaft (9) and at the end of each mounting shaft (13), and the drive wheels (10) on the same side are connected by a drive belt.

3. The heat dissipation device for power distribution control switchgear as described in claim 2, characterized in that, Multiple mounting ports (19) are provided on both sides of the switch cabinet (4), and one end of the fan housing (14) is placed in the mounting port (19); The side of the fan casing (14) is provided with a flange edge (21), which is detachably connected to the edge of the mounting port (19).

4. The heat dissipation device for power distribution control switchgear as described in claim 3, characterized in that, The fan casing (14) near the drive wheel (10) has a detachable end cover (15), and the mounting shaft (13) is rotatably mounted in the middle of the end cover (15).

5. The heat dissipation device for power distribution control switchgear as described in claim 4, characterized in that, Air inlets (6) are provided on both sides of the bottom of the switch cabinet (4).

6. The heat dissipation device for power distribution control switchgear as described in claim 5, characterized in that, The bottom of the switch cabinet (4) is provided with an air inlet channel (18), and both ends of the air inlet channel (18) are connected to the air inlet window (6). An air blower (17) for blowing air upwards is provided at the top of the air inlet channel (18).

7. The heat dissipation device for power distribution control switchgear as described in claim 2, characterized in that, The end of the drive shaft (9) is rotatably mounted in the support (11), which is mounted on the top of the switch cabinet (4).

8. The heat dissipation device for power distribution control switchgear as described in claim 7, characterized in that, The top of the switch cabinet (4) is provided with a first protective cover (1) that covers the drive unit. The switch cabinet (4) is provided with a second protective cover (3) on both sides to cover the fan housing (14). The side of the second protective cover (3) facing the air outlet (12) is provided with a ventilation opening (5) for exhaust.

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