A thermal insulation air duct structure for low-voltage switchgear

Abstract

This utility model relates to a heat insulation air duct structure for low-voltage cabinet components, including a cabinet body. Components are mounted on the top of the cabinet body, and a transformer is mounted on the bottom. A windproof and heat-insulating layer is positioned between the transformer and the components. A first air inlet is located at the bottom of the cabinet body. A second air inlet is located on one side of the cabinet body above the windproof and heat-insulating layer. A fan and an air outlet are located on the other side of the cabinet body below the windproof and heat-insulating layer. An exhaust outlet is located on the side of the windproof and heat-insulating layer near the fan. The first air inlet and the exhaust outlet are connected to form a first heat dissipation air duct. The second air inlet, the exhaust outlet, and the exhaust outlet are connected to form a second heat dissipation air duct. This utility model improves the heat dissipation effect of the low-voltage cabinet, effectively preventing excessively high internal temperatures from affecting the lifespan and performance of the components.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, and in particular to a heat-insulating air duct structure for low-voltage switchgear devices. Background Technology

[0002] like Figure 1 and Figure 2 As shown, the transformer 100 is the largest heat source inside the cabinet. Since there is no partition between the transformer 100 and the device 102 mounted on the top via the device mounting plate 101, the heat dissipated by the transformer 100 during operation reduces the service life of the top device 102.

[0003] In addition, the air inlet 103 is located in the lower left corner of the rack, while the air outlet ( Figure 1 The dust cover 104 and the fan 105 are located on the right side of the cabinet, and there is also a transformer 100 block between them, which makes the air duct path not only longer but also more tortuous, affecting the air outlet efficiency. Utility Model Content

[0004] The main purpose of this utility model is to propose a heat insulation air duct structure for low-voltage cabinet components, which aims to improve the heat dissipation effect of low-voltage cabinets and prevent the internal temperature of the cabinet from being too high, which would affect the service life and performance of the components and cause them to decline.

[0005] To achieve the above objectives, this utility model proposes a heat insulation duct structure for low-voltage switchgear components, including a cabinet. A component is mounted on the top of the cabinet, and a transformer is mounted on the bottom. A windproof and heat-insulating layer is positioned between the transformer and the component. A first air inlet is located at the bottom of the cabinet. A second air inlet is located on one side of the cabinet above the windproof and heat-insulating layer. A fan and an air outlet are located on the other side of the cabinet below the windproof and heat-insulating layer. An exhaust port is opened on the side of the windproof and heat-insulating layer near the fan. The first air inlet and the exhaust port are connected to form a first heat dissipation duct. The second air inlet, the exhaust port, and the exhaust port are connected to form a second heat dissipation duct.

[0006] A further technical solution of this utility model is that a third air inlet is provided at the lower end of the cabinet near the first air inlet, which is connected to the air outlet.

[0007] A further technical solution of this utility model is that a bent guide plate with a preset angle is provided on the back of the windproof and heat insulation layer at the air outlet.

[0008] A further technical solution of this utility model is that the windproof and heat insulation layer is provided with wiring through holes.

[0009] A further technical solution of this utility model is that the windproof and heat-insulating layer is provided with mounting holes at both ends for fixing the windproof and heat-insulating layer to the cabinet.

[0010] A further technical solution of this utility model is that the second air inlet and the third air inlet are provided with air inlet covers with the same structure.

[0011] A further technical solution of this utility model is that the air inlet hood has a semi-enclosed structure.

[0012] A further technical solution of this utility model is that the air inlet hood includes an air inlet body and a dustproof component detachably disposed at the bottom of the air inlet body.

[0013] A further technical solution of this utility model is that the top of the wind shield body has a sloping structure.

[0014] A further technical solution of this utility model is that the dustproof component includes a dustproof frame component and a dustproof cotton. The dustproof frame component includes a dustproof frame, a pressure strip, and a wire mesh. The pressure strip presses the wire mesh onto the dustproof frame, and the dustproof cotton is disposed on the wire mesh.

[0015] The beneficial effects of the heat-insulating air duct structure of the low-voltage switchgear device of this utility model are: This utility model, through the above-described technical solution, includes a cabinet. A device is mounted on the top of the cabinet, and a transformer is mounted on the bottom. A windproof and heat-insulating layer is positioned between the transformer and the device. A first air inlet is located at the bottom of the cabinet. A second air inlet is located on one side of the cabinet above the windproof and heat-insulating layer. A fan and an air outlet are located on the other side of the cabinet below the windproof and heat-insulating layer. An exhaust outlet is located on the side of the windproof and heat-insulating layer near the fan. The first air inlet and the exhaust outlet are connected to form a first heat dissipation duct. The second air inlet, the exhaust outlet, and the exhaust outlet are connected to form a second heat dissipation duct. This improves the heat dissipation effect of the low-voltage cabinet and effectively prevents excessively high internal temperatures from affecting the lifespan and performance of the devices. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the rack layout in existing technology; Figure 2 This is a schematic diagram of the air duct in a server rack in the existing technology; Figure 3 This is a schematic diagram of the overall structure of a preferred embodiment of the heat insulation air duct structure of the low-voltage cabinet device of this utility model; Figure 4 This is a schematic diagram of the air duct of a preferred embodiment of the heat insulation air duct structure of the low-voltage switchgear device of this utility model; Figure 5This is a bottom view of the windproof and heat-insulating layer. Figure 6 This is a side view of the windproof and heat-insulating layer. Figure 7 This is the front view of the windbreak and heat insulation panel; Figure 8 This is a schematic diagram of the air inlet shroud assembly process; Figure 9 This is a structural diagram of the dustproof frame assembly; Figure 10 This is an assembly diagram of the dustproof cotton.

[0017] Explanation of icon numbers: Figure 1 and Figure 2 middle: Transformer 100; Component mounting plate 101; Component 102; Air inlet 103; Air outlet dust cover 104; Fan 105; Figures 3 to 10 middle: Transformer 200; Component 201; Auxiliary power switch 2011; Surge protection switch 2012; Power module 2013; Uninterruptible power supply (UPS) 2014; Terminal block 2015; Epoxy switch 2016; Windproof and heat-insulating layer 202; First air inlet 203; Second air inlet 204; Third air inlet 205; Fan 206; Air outlet 207; Exhaust outlet 208; Air inlet cover 209; Air cover body 210; Dustproof frame 211; Pressure strip 212; Wire mesh 213; Dustproof cotton 214.

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely some embodiments of this utility model and are not intended to limit this utility model. All other embodiments derived from the embodiments of this utility model without inventive design are within the protection scope of this utility model.

[0020] Please refer to Figures 3 to 10This utility model proposes a heat insulation air duct structure for low-voltage switchgear components. A preferred embodiment of this heat insulation air duct structure includes a cabinet. A component 201 is mounted on the top of the cabinet, and a transformer 200 is mounted on the bottom. A windproof and heat-insulating layer 202 is positioned between the transformer 200 and the component 201. A first air inlet 203 is located at the bottom of the cabinet. A second air inlet 204 is located on one side of the cabinet above the windproof and heat-insulating layer 202. A fan 206 and an air outlet 207 are located on the other side of the cabinet below the windproof and heat-insulating layer 202. An exhaust outlet 208 is opened on the side of the windproof and heat-insulating layer 202 near the fan 206. The first air inlet 203 and the exhaust outlet 207 are connected to form a first heat dissipation air duct. The second air inlet 204, the exhaust outlet 208, and the exhaust outlet 207 are connected to form a second heat dissipation air duct.

[0021] It is understood that device 201 includes at least one of auxiliary power switch 2011, surge protection switch 2012, power module 2013, uninterruptible power supply UPS 2014, terminal block 2015, and epoxy switch 2016.

[0022] A third air inlet 205, which is connected to the air outlet 207, is provided at the lower end of the cabinet near the first air inlet 203.

[0023] like Figure 3 and Figure 4 In this embodiment, the windproof and heat-insulating layer 202 is directly added between the transformer 200 and the device 201, and the exhaust port 208 is opened on the right side of the windproof and heat-insulating layer 202. After the fan 206 is running, it draws in the hot air passing through the device 201 and exhausts it outside the cabinet.

[0024] Adding air inlets to the left side of the transformer 200 and the left side of the top device 201 increases the overall air intake area and enhances the heat dissipation effect of the cabinet.

[0025] like Figures 5 to 7 As shown in this embodiment, the back of the windproof and heat insulation layer 202 is provided with a bent guide plate at a preset angle at the air outlet 207, which serves to guide the air outlet. The preset angle is preferably 135°.

[0026] The windproof and heat-insulating layer 202 has a wiring through hole. The wiring through hole is used for external cables and the transformer 200 cables to pass through to the top device 201.

[0027] The windproof and heat-insulating layer 202 has mounting holes at both ends for fixing it to the cabinet. For ease of installation, the mounting holes are semi-circular.

[0028] The windproof and heat-insulating plate 202 is also provided with fixing holes for installing the device 201.

[0029] Furthermore, in this embodiment, the second air inlet 204 and the third air inlet 205 are provided with air inlet covers 209 with the same structure.

[0030] like Figure 8 As shown, the air inlet hood 209 is a semi-enclosed structure, and the top of the hood body 210 is a sloping structure, which allows the air coming in from the outside to be guided more smoothly into the cabinet.

[0031] The air inlet hood 209 includes an air hood body 210 and a dustproof component detachably disposed at the bottom of the air hood body 210. The dustproof component is inserted into the bottom of the air hood body 210 and then fixedly connected by a press-fit nut.

[0032] The outer periphery of the hood body 210 is provided with a circular mounting hole for fixing the entire air inlet hood 209 to the required position on the cabinet.

[0033] The bottom of the hood body 210 is provided with a bent edge for inserting the dustproof component, thereby restricting the vertical movement of the dustproof component. The bent edge and the bottom of the air inlet hood 209 body form an installation space. The two sides of the hood body 210 are provided with press-fit guide pins for restricting the vertical movement of the dustproof component.

[0034] like Figure 9 and Figure 10 As shown, in this embodiment, the dustproof component includes a dustproof frame component and a dustproof cotton 214. The dustproof frame component includes a dustproof frame 211, a pressure strip 212, and a wire mesh 213. The pressure strip 212 presses the wire mesh 213 onto the dustproof frame 211, and the dustproof cotton 214 is disposed on the wire mesh 213.

[0035] In this embodiment, the rear end of the dustproof frame 211 is provided with an installation through hole that cooperates with the rivet nut of the hood body 210 to lock the dustproof frame 211 and the hood body 210.

[0036] The dustproof frame 211 is provided with a bent edge to facilitate the entry and exit of push-pull parts.

[0037] The dustproof frame 211 includes two square holes arranged side by side for air intake.

[0038] The dustproof frame 211 has bent edges on both sides to prevent the dustproof cotton 214 from arching upwards. The wire mesh 213 is set on the square hole inside the dustproof frame 211 to support the dustproof cotton 214 from falling downwards and to ensure that the air intake is not affected.

[0039] In this embodiment, the pressure strip 212 is locked with two countersunk screws to prevent the dustproof cotton 214 from arching upwards due to external wind.

[0040] The dustproof cotton 214 is made of black polyurethane material with a pore size of 30 PPI per unit area.

[0041] The beneficial effects of the heat-insulating air duct structure of the low-voltage switchgear device of this utility model are: This utility model, through the above-described technical solution, includes a cabinet. A device is mounted on the top of the cabinet, and a transformer is mounted on the bottom. A windproof and heat-insulating layer is positioned between the transformer and the device. A first air inlet is located at the bottom of the cabinet. A second air inlet is located on one side of the cabinet above the windproof and heat-insulating layer. A fan and an air outlet are located on the other side of the cabinet below the windproof and heat-insulating layer. An exhaust outlet is located on the side of the windproof and heat-insulating layer near the fan. The first air inlet and the exhaust outlet are connected to form a first heat dissipation duct. The second air inlet, the exhaust outlet, and the exhaust outlet are connected to form a second heat dissipation duct. This improves the heat dissipation effect of the low-voltage cabinet and effectively prevents excessively high internal temperatures from affecting the lifespan and performance of the devices.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural changes made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A heat-insulating air duct structure for low-voltage switchgear, characterized in that, The device includes a cabinet, with components mounted on the top and a transformer mounted on the bottom. A windproof and heat-insulating layer is positioned between the transformer and the components. A first air inlet is located at the bottom of the cabinet. A second air inlet is located on one side of the cabinet above the windproof and heat-insulating layer. A fan and an air outlet are located on the other side of the cabinet below the windproof and heat-insulating layer. An exhaust vent is located on the side of the windproof and heat-insulating layer near the fan. The first air inlet and the exhaust vent are connected to form a first heat dissipation duct. The second air inlet, the exhaust vent, and the exhaust vent are connected to form a second heat dissipation duct.

2. The low-voltage switchgear heat insulation duct structure according to claim 1, characterized in that, A third air inlet, which is connected to the air outlet, is provided at the lower end of the cabinet near the first air inlet.

3. The low-voltage switchgear heat insulation duct structure according to claim 1, characterized in that, The back of the windproof and heat-insulating layer is provided with a bent guide plate at a preset angle at the air outlet.

4. The low-voltage switchgear heat insulation duct structure according to claim 1, characterized in that, The windproof and heat-insulating layer is provided with wiring through holes.

5. The low-voltage switchgear heat insulation duct structure according to claim 1, characterized in that, The windproof and heat-insulating layer is provided with mounting holes at both ends for fixing the windproof and heat-insulating layer to the cabinet.

6. The low-voltage switchgear heat insulation duct structure according to claim 2, characterized in that, The second air inlet and the third air inlet are provided with air inlet hoods with the same structure.

7. The low-voltage switchgear heat insulation duct structure according to claim 6, characterized in that, The air inlet hood has a semi-enclosed structure.

8. The low-voltage switchgear heat insulation duct structure according to claim 7, characterized in that, The air inlet hood includes an air inlet body and a dustproof component that is detachably disposed at the bottom of the air inlet body.

9. The low-voltage switchgear heat insulation duct structure according to claim 8, characterized in that, The top of the wind shield body has a sloping structure.

10. The low-voltage switchgear heat insulation duct structure according to claim 8, characterized in that, The dustproof component includes a dustproof frame assembly and dustproof cotton. The dustproof frame assembly includes a dustproof frame, a pressure strip, and a wire mesh. The pressure strip presses the wire mesh onto the dustproof frame, and the dustproof cotton is placed on the wire mesh.

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