Sandproof heat dissipation device and high current large opening distance electrical components switch

Abstract

This application relates to a sand-proof heat dissipation device and a high-current, large-aperture electrical component switch. It is applicable to the field of electrical component switch technology. The technical solution includes: a mounting frame; a sand-proof structure disposed at the front end of the mounting frame; a heat dissipation structure disposed at the rear end of the mounting frame, and the heat dissipation structure is equipped with a heat dissipation fan, which can discharge internal hot air through the sand-proof structure; the sand-proof structure has a sand-proof frame, the front end of which has a first inlet / outlet, the rear end of which has a second inlet / outlet, and the lower end of which has a third inlet / outlet; the plane of the first inlet / outlet is an inclined plane that gradually moves away from the mounting frame from top to bottom, and several sand-blocking strips are evenly distributed inside the first inlet / outlet, the sand-blocking strips being arranged obliquely in the width direction; the second inlet / outlet is connected to the heat dissipation structure through the mounting frame, and the second inlet / outlet is equipped with an air filter capable of intercepting sand; the third inlet / outlet is equipped with at least two layers of sand-blocking strips arranged vertically.

Description

Technical Field

[0001] This utility model relates to a sand-proof heat dissipation device and a high-current, large-aperture electrical component switch. It is applicable to the field of electrical component switch technology. Background Technology

[0002] Power facilities that distribute power across high-voltage power lines are called power switches. Power switches only distribute power across high-voltage power lines and maintain the high-voltage level. They do not transform power stations. Power switches do not have transformers or distribution cabinets; they are power stations that only function to open or close power lines.

[0003] The existing electrical switch has the following shortcomings. For example, the photovoltaic equipment is built in an open space, and the switch is also set up next to the photovoltaic equipment and connected to it. Due to the strong crosswinds in the open space, sand is easily blown into the air and accumulates in the heat dissipation vents, blocking the vents and affecting heat dissipation. It can also easily enter the switch through the heat dissipation vents, affecting the normal operation of the switch. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: to provide a sand-proof heat dissipation device and a high-current, large-aperture electrical component switch in response to the above-mentioned problems.

[0005] The technical solution adopted by this utility model is: a sand-proof and heat-dissipating device, comprising:

[0006] Install a fixed frame;

[0007] A sand-proof structure is installed at the front end of the mounting frame;

[0008] A heat dissipation structure is located at the rear end of the mounting frame, and the heat dissipation structure is equipped with a heat dissipation fan, which can exhaust the internal hot air through the sandproof structure.

[0009] The sand-control structure has a sand-control frame, which has a first inlet / outlet at the front end, a second inlet / outlet at the rear end, and a third inlet / outlet at the bottom end;

[0010] The plane where the first inlet and outlet are located is an inclined plane that gradually moves away from the mounting frame from top to bottom. Several sand-blocking strips are evenly distributed inside the first inlet and outlet. The sand-blocking strips are arranged at an angle in the width direction to form an inclined channel that gradually moves upward from the front end to the rear end between adjacent sand-blocking strips.

[0011] The second inlet and outlet are connected to the heat dissipation structure via the mounting frame, and an air filter capable of intercepting sand is provided inside the second inlet and outlet.

[0012] The third inlet and outlet is equipped with at least two layers of sand-proof strips arranged vertically. Each layer of sand-proof strips contains multiple parallel sand-proof strips. The spacing between sand-proof strips in the same layer is less than the width of the sand-proof strips, and the sand-proof strips in adjacent layers are staggered.

[0013] The heat dissipation structure includes a heat dissipation frame, at least one of the heat dissipation fans is provided at the rear end of the heat dissipation frame, the front end of the heat dissipation frame is connected to the mounting frame, and the heat dissipation frame is provided with an air guide block for increasing the wind speed from the rear end to the front end.

[0014] The air guide block has an air guide frame, and an air guide groove is provided inside the air guide frame. The cross-section of the air guide groove gradually decreases from the rear end to the front end.

[0015] The air guide groove is provided with a number of air guide vanes, and the spacing between the air guide vanes gradually decreases from the rear end to the front end.

[0016] The surface of the sand-blocking strip is provided with grooves to increase the surface roughness of the sand-blocking strip.

[0017] A high-current, large-aperture electrical switch is equipped with the aforementioned sand-proof and heat-dissipating device.

[0018] The beneficial effects of this utility model are as follows: This utility model uses sand-blocking strips in the first inlet and outlet to block some sand from entering the sand-proof structure. This utility model uses an air filter combined with the inclined arrangement of the first inlet and outlet, and the inclined sand-blocking strips in the first inlet and outlet, so that the sand that enters with the wind enters the sand-proof structure obliquely upward through the inclined channel between the sand-blocking strips. After entering the sand-proof structure, the sand is more likely to collide with each other in the smaller space in the upper part of the sand-proof structure, reducing the wind speed and the kinetic energy of the sand. This helps the sand to fall and be discharged from the third inlet and outlet below.

[0019] This invention utilizes a sand-proof structure to bounce off and fall down as the external sand is blown by the wind, preventing sand from entering the interior with the crosswind and affecting the normal operation of the opener / closer. Furthermore, the grooves on the surface of the sand-blocking strip increase the friction between the sand and the opener / closer, effectively preventing sand from entering and ensuring that the opener / closer can operate normally and stably.

[0020] In this invention, the cross-section of the wind trough gradually decreases from the rear end to the front end, and the spacing between the air guide vanes gradually decreases from the rear end to the front end. When the hot air attracted by the cooling fan is concentrated and discharged towards the end face of the sand-proof structure, the airflow speed can be enhanced. The faster wind speed helps to prevent sand from entering the interior, allowing the switch to stably control the photovoltaic high current. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of a high-current, large-aperture electrical component switch according to the present invention.

[0022] Figure 2 This is a front view cross-sectional structural diagram of the opening and closing device of this utility model.

[0023] Figure 3 This is a schematic diagram of the main structure of the sand-proof heat dissipation device of this utility model.

[0024] Figure 4 This is a side view sectional structural diagram of the sand-proof heat dissipation device of this utility model.

[0025] Figure 5 This is a top view cross-sectional diagram of the heat dissipation structure of this utility model.

[0026] Figure 6 This is a top view cross-sectional structural diagram of the air guide block of this utility model.

[0027] In the diagram: 1. Opening / closing device; 2. Top cover; 3. Warning sign; 11. Frame; 12. Opening / closing device; 13. Box door; 14. Sandproof and heat dissipation device; 141. Mounting frame; 142. Sandproof structure; 143. Heat dissipation structure; a1. Sandproof frame; a2. Air filter; a3. Sand baffle; a4. Groove; a5. Sandproof strip; s1. Heat dissipation frame; s2. Fan frame; s3. Heat dissipation fan; s4. Air guide block; s41. Air guide frame; s42. Air guide groove; s43. Air guide plate. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figure 1 , 2 As shown, this embodiment is a high-current, large-aperture electrical component switch, the structure of which includes a switch device 1, a top cover 2, and a warning sign 3. The top of the switch device 1 is provided with a top cover 2, the two sides of which are inclined. The warning sign 3 is located at the front end of the switch device 1. The switch device 1 includes a frame 11, a switch 12, a door 13, and a sandproof and heat dissipation device 14. The top of the frame 11 is fixedly connected to the end face of the top cover 2. The switch 12 is located on the inner end face of the frame 11. There are two doors 13, which are respectively located on the front two sides of the frame 11. The sandproof and heat dissipation device 14 is fixedly installed on the front end face of the door 13. The door 13 can be sealed to the inner end face of the frame 11, which is beneficial for loading the switch 12 through the frame 11 and preventing wind and sand from entering the interior of the switch 12 and affecting its normal operation.

[0030] like Figure 3 , 4As shown, in this embodiment, the sand-proof heat dissipation device 14 includes a mounting frame 141, a sand-proof structure 142, and a heat dissipation structure 143. The sand-proof heat dissipation device 14 is disposed in the mounting hole on the door 13 and fixed to the door 13 by the mounting frame 141. The sand-proof structure 142 is disposed on the front end face of the mounting frame 141 and located outside the opener / closer. The heat dissipation structure 143 is fixedly connected to the rear end face of the mounting frame 141 and located inside the opener / closer.

[0031] In this example, the sand-proof structure 142 has a sand-proof frame a1, which has a first inlet and outlet at the front end, a second inlet and outlet at the rear end, and a third inlet and outlet at the bottom end.

[0032] In this embodiment, the plane where the first inlet and outlet of the sand-proof frame a1 is located is an inclined plane that gradually moves away from the installation and fixing frame from top to bottom. Several sand-blocking strips a3 are evenly distributed inside the first inlet and outlet. The two ends of the sand-blocking strips a3 in the length direction are connected to the left and right sides of the first inlet and outlet. The sand-blocking strips a3 are arranged at an angle in the width direction to form an inclined channel that gradually moves upward from the front end to the rear end between adjacent sand-blocking strips a3.

[0033] In this example, the surface of the sand-blocking strip a3 is provided with a groove a4 to increase the surface roughness of the sand-blocking strip, thereby increasing the friction with the surface of the sand-blocking strip a3 and reducing the wind speed flowing through the sand-blocking strip a3.

[0034] In this embodiment, the second inlet and outlet of the sand-proof frame a1 is connected to the heat dissipation structure 143 via the mounting and fixing frame 141. An air filter a2 is provided inside the second inlet and outlet, which can intercept sand in the air.

[0035] In this example, the third entrance and exit are equipped with two layers of sand-proof strips a5, with four sand-proof strips a5 in the upper layer and three sand-proof strips a5 in the lower layer. The sand-proof strips a5 are parallel to each other, and the spacing between the sand-proof strips a5 in the same layer is less than the width of the sand-proof strip a5. The sand-proof strips a5 in adjacent layers are staggered.

[0036] In this embodiment, the cross-section of the sand-proof strip a5 is an inverted V-shape with a smaller top and a larger bottom. Combined with the arrangement of the upper and lower layers of sand-proof strip a5, it helps sand fall from inside the sand-proof structure through the third inlet and outlet, and also helps prevent sand from entering the sand-proof structure from bottom to top.

[0037] like Figure 5 As shown, in this embodiment, the heat dissipation structure 143 includes a heat dissipation frame s1. Two heat dissipation fans s3 are mounted on the rear end of the heat dissipation frame s1 via a fan frame s2. The front end of the heat dissipation frame s2 is connected to the mounting frame. The heat dissipation frame s2 is provided with a guide block s4 for increasing the wind speed from the rear end to the front end.

[0038] like Figure 6As shown, in this example, the air guide block s4 has an air guide frame s41, and the air guide frame s41 has an air guide groove s42. The cross section of the air guide groove s42 gradually decreases from the rear end to the front end. Several air guide vanes s43 are provided in the air guide groove s42. The spacing between the air guide vanes s43 gradually decreases from the rear end to the front end, which helps to increase the air speed blown out by the cooling fan s3.

[0039] In this embodiment, two cooling fans s3 work simultaneously to enhance the attraction of hot air inside the frame 11, improve the heat dissipation effect of the switch 12, and avoid excessive negative pressure generated by the switch 12 in current control. This allows the switch 12 to stably control the photovoltaic equipment. The arc shape of the air guide s43 concentrates the hot air attracted by the fans s3 to the end face of the sandproof structure 142, thereby increasing the airflow speed and achieving rapid heat dissipation for the switch 12. The sandproof structure 142 also prevents sand from entering the interior of the frame 11, allowing the switch 12 to stably control the high current of the photovoltaic system.

[0040] The specific working principle of this embodiment is as follows: The opening / closing device 12 is loaded into the frame 11, and then the two box doors 13 are closed to store the opening / closing device 12 inside the frame 11. This prevents the opening / closing device 12 from being directly impacted by the wind and sand in the Gobi Desert, and avoids wind and sand entering the opening / closing device 12 and affecting its normal operation. Then, the heat dissipation structure 143 is used to attract the heat generated by the operation of the opening / closing device 12, so that the heat can be dissipated from the inside to the outside through the sandproof structure 142. Moreover, the sand outside can be blown by the wind and impact the sandproof structure 142. The end face of 2 rebounds and falls downwards to prevent sand from entering the interior of the frame 11 with the flow of crosswinds and affecting the normal operation of the opener 12. Then, the sand-blocking strips a3 are stacked at the front end of the sand-proof frame a1 to block the wind and sand. The groove a4 increases the friction with the end face of the sand-blocking strips a3, reduces the wind speed, and reduces the amount of sand entering the interior of the frame 11 through the gaps between the sand-blocking strips a3. This can effectively block the sand and allow the opener 12 located inside the frame 11 to operate normally and stably.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sand-proof heat dissipation device, characterized in that, include: Install a fixed frame; A sand-proof structure is installed at the front end of the mounting frame; A heat dissipation structure is located at the rear end of the mounting frame, and the heat dissipation structure is equipped with a heat dissipation fan, which can exhaust the internal hot air through the sandproof structure. The sand-control structure has a sand-control frame, which has a first inlet / outlet at the front end, a second inlet / outlet at the rear end, and a third inlet / outlet at the bottom end; The plane where the first inlet and outlet are located is an inclined plane that gradually moves away from the mounting frame from top to bottom. Several sand-blocking strips are evenly distributed inside the first inlet and outlet. The sand-blocking strips are arranged at an angle in the width direction to form an inclined channel that gradually moves upward from the front end to the rear end between adjacent sand-blocking strips. The second inlet and outlet are connected to the heat dissipation structure via the mounting frame, and an air filter capable of intercepting sand is provided inside the second inlet and outlet. The third inlet and outlet is equipped with at least two layers of sand-proof strips arranged vertically. Each layer of sand-proof strips contains multiple parallel sand-proof strips. The spacing between sand-proof strips in the same layer is less than the width of the sand-proof strips, and the sand-proof strips in adjacent layers are staggered.

2. The sand-proof heat dissipation device according to claim 1, characterized in that: The heat dissipation structure includes a heat dissipation frame, at least one of the heat dissipation fans is provided at the rear end of the heat dissipation frame, the front end of the heat dissipation frame is connected to the mounting frame, and the heat dissipation frame is provided with an air guide block for increasing the wind speed from the rear end to the front end.

3. The sand-proof heat dissipation device according to claim 2, characterized in that: The air guide block has an air guide frame, and an air guide groove is provided inside the air guide frame. The cross-section of the air guide groove gradually decreases from the rear end to the front end.

4. The sand-proof heat dissipation device according to claim 3, characterized in that: The air guide groove is provided with a number of air guide vanes, and the spacing between the air guide vanes gradually decreases from the rear end to the front end.

5. The sand-proof heat dissipation device according to claim 1, characterized in that: The surface of the sand-blocking strip is provided with grooves to increase the surface roughness of the sand-blocking strip.

6. A high-current, large-aperture electrical component switch, characterized in that, The device is equipped with a sand-proof and heat-dissipating device as described in any one of claims 1 to 5.

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