Anti-interference DC screen

Abstract

The utility model relates to an anti -interference DC panel, including the box, the top front end and the back lower extreme of box each is equipped with the air outlet and the air inlet, is equipped with waveguide window all on the air outlet and air inlet, is equipped with the mounting frame for installing the electric equipment in the box, the fan that blows from the outside to the fan in the air inlet side of box is equipped with in the box, is equipped with the vertical board in the rear side of mounting frame in the box, the vertical board and the wall between in the box enclose the gas channel, the vertical board is along height direction even and is equipped with a plurality of groups of along the horizontal direction arrangement's air hole, is equipped with the opening and closing subassembly at the air hole place. The utility model has the advantages of cold wind concentration, good heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of DC power supply technology, specifically to an anti-interference DC power supply. Background Technology

[0002] DC power supply panels are mainly used in small power plants, hydropower stations, various substations, and other users of DC equipment in power systems. They are suitable for applications such as switch opening and closing, instruments, meters, relay protection, and fault lighting in secondary circuits.

[0003] To reduce electromagnetic interference, DC power shields typically employ a fully enclosed metal structure that facilitates electromagnetic shielding. However, this enclosed structure can make it difficult for the internal electrical equipment to dissipate heat to the outside. To address the heat dissipation issue, air inlets, outlets, and matching fans are usually installed on the enclosure to accelerate air exchange between the inside and outside of the enclosure and improve heat dissipation. Waveguide windows are also installed on the air inlets and outlets to ensure shielding continuity. However, the cold air entering the enclosure is dispersed and cannot be concentrated at the installation location of the electrical equipment, which limits the heat dissipation efficiency to some extent. Utility Model Content

[0004] The purpose of this invention is to provide an anti-interference DC power supply with the advantages of concentrated cold air and good heat dissipation.

[0005] The technical solution of this utility model is as follows:

[0006] An anti-interference DC power supply includes a housing. The top front end and the lower back end of the housing are each provided with an air outlet and an air inlet. Both the air outlet and the air inlet are provided with waveguide windows. The housing is provided with a mounting bracket for installing electrical equipment. The housing is provided with a fan inside the air inlet to blow air into the housing from the outside. The housing is provided with a vertical plate behind the mounting bracket. The vertical plate and the inner wall of the housing form an air supply channel. The vertical plate is provided with a number of sets of air exchange ports evenly arranged horizontally along the height direction. The air exchange ports are provided with opening and closing components.

[0007] Preferably, the air inlet is provided with an air supply pipe at its front end, the front end of the air supply pipe extends to the front of the mounting bracket, and the front end of the air supply pipe is provided with an exhaust hole.

[0008] Preferably, the mounting frame includes vertical bars on both sides and several horizontal bars arranged along the height direction between the two vertical bars. The horizontal bars serve as the load-bearing surface for the electrical equipment. A set of air supply pipes of equal height are provided between the upper and lower adjacent horizontal bars, and the front end of the air supply pipes is provided with a pair of symmetrical exhaust holes.

[0009] Preferably, the opening and closing assembly includes a telescopic rod, a long plate, and a plug. The air supply channel is provided with a number of long plates corresponding to the height of each group of air exchange ports. The long plates are parallel to the vertical plates. The side of the long plate facing the vertical plate is provided with a plug corresponding to the air exchange port. A telescopic rod is provided between the long plate and the back of the box. The line connecting the air exchange port and the plug is parallel to the extension and retraction direction of the telescopic rod.

[0010] Preferably, the front of the box is provided with an opening, and a sealing door is hinged to the opening. A conductive rubber strip is provided at the joint between the sealing door and the opening.

[0011] The beneficial technical effects of this utility model are as follows:

[0012] By using a combination of vertical plates with ventilation vents, opening and closing components, and fans, workers can concentrate the cool air blown into the enclosure by the fans onto the parts of the mounting rack where electrical equipment is installed, reducing the dispersion of cool air and improving heat dissipation. Workers can open the opening and closing components on the corresponding ventilation vents according to the distribution of electrical equipment on the mounting rack, and turn on the fans when the electrical equipment is running. The fans bring outside cool air into the air delivery channel through the air inlet. The cool air entering the air delivery channel is blown out from the opened ventilation vents and onto the aligned electrical equipment. Finally, the air that has absorbed heat leaves the enclosure through the air outlet. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0014] Appendix Figure 1 This is the front view of the present invention.

[0015] Appendix Figure 2 This is a front-view cross-sectional view of the present invention.

[0016] Appendix Figure 3 This is a right-side cross-sectional view of the present invention.

[0017] In the diagram: 1-box body, 2-air outlet, 3-air inlet, 4-waveguide window, 5-mounting bracket, 6-electrical equipment, 7-fan, 8-vertical plate, 9-air supply channel, 10-ventilation port, 11-opening and closing assembly, 12-air supply pipe, 13-exhaust hole, 14-vertical rod, 15-horizontal rod, 16-telescopic rod, 17-long plate, 18-plug, 19-sealing door, 20-conductive rubber strip. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Example:

[0020] like Figures 1 to 3As shown, this embodiment provides an anti-interference DC power supply, including a housing 1. The top front end and the lower back end of the housing 1 are respectively provided with an air outlet 2 and an air inlet 3. Both the air outlet 2 and the air inlet 3 are provided with waveguide windows 4. The housing 1 is provided with a mounting bracket 5 for installing electrical equipment 6. The housing 1 is provided with a fan 7 inside the air inlet 3 to blow air from the outside into the housing 1. The housing 1 is provided with a vertical plate 8 behind the mounting bracket 5. The vertical plate 8 and the inner wall of the housing 1 form an air supply channel 9. Several sets of air exchange ports 10 are evenly provided along the height direction and arranged horizontally on the vertical plate 8. The air exchange ports 10 are provided with opening and closing components 11.

[0021] By using the vertical plate 8 with ventilation vents 10, the opening and closing components 11, and the fan 7 together, the staff can concentrate the cold air blown into the housing 1 by the fan 7 onto the part of the mounting frame 5 where the electrical equipment 6 is installed, reducing the dispersion of cold air and improving the heat dissipation effect. The staff can open the opening and closing components 11 on the corresponding ventilation vents 10 according to the distribution of the electrical equipment 6 on the mounting frame 5. When the electrical equipment 6 is running, the fan 7 is turned on. The fan 7 brings the outside cold air into the air supply channel 9 through the air inlet 3. The cold air entering the air supply channel 9 is blown out from the opened ventilation vent 10 and blown onto the aligned electrical equipment 6. Finally, the air that has absorbed heat leaves the housing 1 from the air outlet 2.

[0022] Furthermore, the air inlet 10 is provided with an air supply pipe 12 at its front end, the front end of the air supply pipe 12 extends to the front of the mounting bracket 5, and the front end of the air supply pipe 12 is provided with an exhaust hole 13.

[0023] The air supply pipe 12 guides the cold air to the front of the mounting bracket 5 for mounting electrical equipment 6, reducing the dispersion of cold air and improving the heat dissipation effect.

[0024] Specifically, in this embodiment, the mounting frame 5 includes vertical rods 14 located on both sides and several horizontal rods 15 arranged along the height direction between the two vertical rods 14. The horizontal rods 15 serve as the load-bearing surface for the electrical equipment 6. A set of air supply pipes 12 of equal height are provided between adjacent horizontal rods 15. The front end of the air supply pipes 12 is provided with a pair of symmetrical exhaust holes 13.

[0025] Furthermore, the opening and closing assembly 11 includes a telescopic rod 16, a long plate 17, and a plug 18. The air supply channel 9 is provided with a number of long plates 17 corresponding to the height of each group of air exchange ports 10. The long plates 17 are parallel to the vertical plate 8. The side of the long plate 17 facing the vertical plate 8 is provided with a plug 18 corresponding to the air exchange port 10. The telescopic rod 16 is provided between the long plate 17 and the back of the inside of the housing 1. The line connecting the air exchange port 10 and the plug 18 is parallel to the extension and retraction direction of the telescopic rod 16.

[0026] The telescopic rod 16 is used to adjust the lateral position of the long plate 17, thereby adjusting the positional relationship between the plug 18 and the air vent 10. When the air vent 10 needs to be opened, the telescopic rod 16 pulls the long plate 17 away from the air vent 10 until the plug 18 leaves the air vent 10. When the air vent 10 needs to be closed, the telescopic rod 16 moves the long plate 17 closer to the air vent 10 until the plug 18 blocks the air vent 10.

[0027] Furthermore, the front of the housing 1 has an opening, and a sealing door 19 is hinged to the opening. A conductive rubber strip 20 is provided at the joint between the sealing door 19 and the opening.

[0028] The gap between the sealed door 19 and the opening is blocked by the conductive rubber strip 20, thereby improving the anti-interference capability of the enclosure 1.

[0029] Working principle and usage process of this utility model:

[0030] According to the distribution of electrical equipment 6 on the mounting frame 5, the staff opens the opening and closing components 11 on the corresponding air exchange port 10. When the electrical equipment 6 is running, the fan 7 is turned on. The fan 7 brings the outside cold air into the air supply channel 9 through the air inlet 3. The cold air entering the air supply channel 9 is blown out from the opened air exchange port 10 and blown onto the aligned electrical equipment 6. Finally, the air that has absorbed heat leaves the box 1 from the air outlet 2.

[0031] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. An anti-interference DC power supply, comprising a housing, wherein an air outlet and an air inlet are respectively provided at the top front end and the lower rear end of the housing, and waveguide windows are provided on both the air outlet and the air inlet; and a mounting bracket for installing electrical equipment is provided inside the housing, characterized in that: The housing has a fan inside the air inlet that blows air into the housing from the outside. Inside the housing, a vertical plate is provided behind the mounting bracket. The vertical plate and the inner wall of the housing form an air supply channel. The vertical plate has several sets of air exchange ports evenly arranged horizontally along the height direction. Each air exchange port is equipped with an opening and closing component.

2. The anti-interference DC power supply according to claim 1, characterized in that: The air exchange port is provided with an air supply pipe at its front end, the front end of which extends to the front of the mounting bracket, and an exhaust hole is provided at the front end of the air supply pipe.

3. The anti-interference DC power supply according to claim 2, characterized in that: The mounting frame includes vertical bars on both sides and several horizontal bars arranged along the height direction between the two vertical bars. The horizontal bars serve as the load-bearing surface for the electrical equipment. A set of air supply pipes of equal height are provided between the upper and lower adjacent horizontal bars. The front end of the air supply pipes is provided with a pair of symmetrical exhaust holes.

4. The anti-interference DC power supply according to claim 1, characterized in that: The opening and closing assembly includes a telescopic rod, a long plate, and a plug. The air supply channel is provided with several long plates corresponding to the height of each group of air exchange ports. The long plates are parallel to the vertical plates. The side of the long plate facing the vertical plate is provided with a plug corresponding to the air exchange port. A telescopic rod is provided between the long plate and the back of the box. The line connecting the air exchange port and the plug is parallel to the extension and retraction direction of the telescopic rod.

5. The anti-interference DC power supply according to claim 1, characterized in that: The front of the box has an opening, and a sealing door is hinged to the opening. A conductive rubber strip is provided at the joint between the sealing door and the opening.

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