A fast heat dissipation withdrawable switch cabinet

Abstract

The present invention relates to the technical field of switch box heat dissipation, and specifically provides a withdrawable switch cabinet with rapid heat dissipation, including a cabinet, wherein a plurality of switch boxes are accommodated, a base frame and a bracket are slidably arranged in the cabinet, and a side frame rotates around the base frame. When a switch box generates more heat, the base frame rises to release the restriction of the side frame to drive the bracket to move upward, thereby driving the switch box to rise, so that the heat dissipation space at the bottom of the switch box is increased. At the same time, an exhaust fan is arranged on the bracket, and the exhaust fan is started, so that the switch box is subjected to dual heat dissipation, one is the heat dissipation of the blowing plate, and the other is the heat dissipation of the exhaust fan. At the same time, the heat dissipation space is increased, so that the switch box with more heat generation can dissipate heat efficiently, and abnormal operation of the switch box is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation of switch cabinets, and in particular to a withdrawable switch cabinet with rapid heat dissipation. Background Art

[0002] Switchgear is a key device used to distribute, control and protect electrical equipment in power systems. As the density and power of electrical equipment increase, the heat generated inside the switchgear also increases. If this heat cannot be dissipated in time, it may cause the equipment to overheat, affect its normal operation, and even cause serious accidents such as fire. Therefore, the heat dissipation performance of the switchgear is particularly important.

[0003] In current technology, a pull-out switch cabinet usually contains multiple switch boxes, and the internal temperature is generally reduced by natural heat dissipation or forced air cooling. However, with the increase in the power and complexity of modern power equipment, these traditional heat dissipation methods may be difficult to meet the needs of rapid heat dissipation. In addition, since multiple switch boxes are arranged compactly and air circulation is blocked, when the switch box is locally overheated, targeted heat dissipation cannot be implemented quickly, which reduces the heat dissipation effect of the switch box and has an adverse impact on its normal operation. Summary of the invention

[0004] Based on this, it is necessary to provide a withdrawable switch cabinet with rapid heat dissipation to address the problem that the current switch box cannot dissipate heat in a timely and targeted manner when local overheating occurs, resulting in the switch box not being able to operate normally.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A fast heat dissipation withdrawable switch cabinet, comprising:

[0007] A cabinet, the cabinet is used to accommodate a switch box, and there are multiple switch boxes;

[0008] A sliding bracket assembly, the sliding bracket assembly is located in the cabinet, and the sliding bracket assembly is used to drive the switch box to move in the vertical direction in the cabinet;

[0009] A blowing plate, the blowing plate is located below the sliding bracket assembly, and the blowing plate blows air in a vertical direction;

[0010] A condensation plate, the condensation plate is located between the sliding bracket assembly and the blowing plate, and the condensation plate is used to cool the air blown out by the blowing plate;

[0011] The switch box is located on the sliding bracket assembly, and an exhaust fan is provided between the switch box and the sliding bracket assembly. When the heat generation of one of the multiple switch boxes is higher than that of the other switch boxes, the sliding bracket assembly props up the switch box to a preset height, and the exhaust fan blows air to the switch box;

[0012] The sliding bracket assembly includes a base frame and a side frame, the side frame is hinged on both sides of the base frame, a bracket is slidably arranged on the base frame, the bracket slides in a vertical direction on the base frame, when the side frame rotates in a direction away from the bracket, the side frame drives the bracket to move upward in the vertical direction, and the bracket drives the switch box to move upward.

[0013] Further, a connecting plate is provided on the base frame, a vertical slide groove is provided on the connecting plate, both ends of the bracket are located in the vertical slide groove, and a first torsion spring is provided at the hinge between the side frame and the base frame, and the first torsion spring makes the side frame rotate in a direction away from the bracket or makes the side frame have a tendency to rotate in a direction away from the bracket;

[0014] In the initial state, two adjacent side frames abut against each other to limit the rotation of the side frames. When the base frame moves upward in the vertical direction so that the side frames are free from the restriction, the side frames drive the bracket to move upward under the action of the first torsion spring.

[0015] Furthermore, a first slide rail is provided on the inner wall of the cabinet, and the base frame slides in a vertical direction in the first slide rail. An electromagnet is provided at the bottom of the first slide rail, and a magnet is provided on the base frame. In an initial state, the magnetic poles of the electromagnet are opposite to those of the magnet, and the electromagnet attracts the magnet. After the electromagnet changes its magnetic poles, the electromagnet and the magnet repel each other, and the base frame moves upward along the first slide rail.

[0016] Furthermore, a rack is provided on the inner wall of the cabinet, the rack is perpendicular to the cabinet floor, a movable frame is provided in the cabinet, a driving motor is provided on the movable frame, the gear of the driving motor is meshed with the rack, and the driving motor drives the movable frame to move in the vertical direction in the cabinet.

[0017] Furthermore, a conical hole is provided on the base frame, with the large end of the conical hole facing downward and the small end facing upward. The gas blown out by the blowing plate enters from the large end of the conical hole and blows out from the small end and then blows toward the switch box.

[0018] Furthermore, a guide plate is hinged on the side frame, the upper end of the guide plate abuts against the side wall of the switch box, a ventilation groove is provided at the upper end of the guide plate, and a spoiler groove is provided on a side wall of the guide plate close to the switch box, and the spoiler groove is arc-shaped and does not penetrate the guide plate.

[0019] Furthermore, a second torsion spring is provided at the position where the guide plate is hinged to the side frame, and the second torsion spring enables the guide plate to always abut against the side wall of the switch box.

[0020] Furthermore, there are a plurality of guide plates, which are stacked layer by layer, and the lengths of the guide plates gradually become shorter from top to bottom.

[0021] Furthermore, a plurality of side ventilation gaps are provided on the side frame, and the extending wind direction of the side ventilation gaps is perpendicular to the side frame. A transverse air blowing mechanism is provided in the cabinet, and the wind blown out by the transverse air blowing mechanism passes through the side ventilation gaps to allow the gas in the cabinet to circulate.

[0022] The beneficial effects of the present invention are:

[0023] The present invention provides a sliding base frame and a bracket, and a side frame rotating around the base frame. When a switch box generates more heat, the base frame rises to release the restriction of the side frame to drive the bracket to move upward, thereby driving the switch box to rise, so that the heat dissipation space at the bottom of the switch box is increased. At the same time, an exhaust fan is provided on the bracket. When the exhaust fan is started, the switch box is subjected to dual heat dissipation, one is the heat dissipation of the blowing plate, and the other is the heat dissipation of the exhaust fan. At the same time, the heat dissipation space is increased, so that the switch box with more heat generation can dissipate heat efficiently, thereby avoiding abnormal operation of the switch box.

[0024] The present invention opens a conical hole on the base frame with the large end facing downward and the small end facing upward, so that the gas blown out by the blowing plate passes through the large end of the conical hole and is discharged from the small end, and then blows toward the switch box, so that the wind speed blowing toward the switch box is increased, and the heat dissipation effect of the switch box is further increased.

[0025] The present invention provides a guide plate, an air vent is provided at the upper end of the guide plate, and a spoiler groove is provided on a surface of the guide plate close to the side wall of the switch box, so that the gas passes through the spoiler groove of the guide plate and is directly blown to the side wall of the switch box. At the same time, the gas is discharged from the air vent of the guide plate, thereby improving the heat dissipation effect of the gas on the side wall of the switch box. At the same time, the guide plate also plays a role in supporting the switch box.

[0026] The invention provides side ventilation gaps on the side frames so that when air is blown horizontally in the cabinet, gas passes through the side ventilation gaps, thereby increasing the air flow in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a withdrawable switch cabinet with rapid heat dissipation provided by an embodiment of the present invention;

[0028] Figure 2 An exploded view of a withdrawable switch cabinet for rapid heat dissipation provided by an embodiment of the present invention;

[0029] Figure 3 for Figure 2 A partial enlarged view of part A of a withdrawable switch cabinet for rapid heat dissipation provided in an embodiment;

[0030] Figure 4 A front view of a sliding bracket assembly of a withdrawable switch cabinet for rapid heat dissipation provided by an embodiment of the present invention;

[0031] Figure 5 for Figure 4 A cross-sectional view of

[0032] Figure 6 An exploded view of a sliding bracket assembly of a withdrawable switch cabinet for rapid heat dissipation provided by an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the side frame structure of a withdrawable switch cabinet with rapid heat dissipation provided by an embodiment of the present invention;

[0034] Figure 8 A schematic structural diagram of a guide plate of a withdrawable switch cabinet for rapid heat dissipation provided by an embodiment of the present invention;

[0035] Fig. 9 A cross-sectional view of a guide plate of a withdrawable switch cabinet for rapid heat dissipation provided by an embodiment of the present invention;

[0036] Fig.10 A schematic structural diagram of a base frame and a connecting plate of a withdrawable switch cabinet with rapid heat dissipation provided by an embodiment of the present invention;

[0037] Fig.11 for Fig.10 A cross-sectional view of

[0038] Fig.12 A first state diagram of a withdrawable switch cabinet with rapid heat dissipation provided by an embodiment of the present invention;

[0039] Fig.13 A second state diagram of a withdrawable switch cabinet with rapid heat dissipation provided by an embodiment of the present invention;

[0040] Fig.14 This is a diagram of the third state of the withdrawable switch cabinet with rapid heat dissipation provided by one embodiment of the present invention.

[0041] in:

[0042] 100, cabinet; 101, first slide rail; 102, second slide rail; 103, rack; 104, electromagnet;

[0043] 200, sliding bracket assembly; 210, bottom frame; 211, tapered hole; 212, hinge hole; 213, connecting plate; 2131, vertical slide groove; 220, side frame; 221, hinge axis; 222, first hinge block; 223, second hinge block; 224, side ventilation gap; 225, top block; 230, exhaust fan; 240, bracket; 250, guide plate; 251, ventilation groove; 252, spoiler groove; 260, hinge rod;

[0044] 300, mobile frame; 310, driving motor;

[0045] 400, blowing plate;

[0046] 500, condensation plate;

[0047] 600. Switch box. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] Refer to the following Figure 1-Figure 14To describe a withdrawable switch cabinet with rapid heat dissipation provided by the present application.

[0052] A fast heat dissipation withdrawable switch cabinet is suitable for heat dissipation of switch boxes 600, especially for heat dissipation of a large number of switch boxes 600. The cabinet 100 includes a cabinet 100, which is provided with a plurality of dustproof ventilation holes (not shown in the figure). The cabinet 100 contains a plurality of switch boxes 600, which are arranged at intervals in the cabinet 100, and the intervals between each switch box 600 are the same. A sliding bracket assembly 200 is arranged in the cabinet 100, and the sliding bracket assembly 200 is located below the switch box 600, and the switch box 600 is supported by the sliding bracket assembly 200. When the switch box 600 emits less heat, the position of the switch box 600 in the cabinet 100 remains unchanged, and a blowing plate 400 is arranged under the sliding bracket assembly 200. The blowing plate 400 continuously blows air into the cabinet 100, so that the switch box 600 in the cabinet 100 can be cooled, and a condensation plate 500 is arranged between the blowing plate 400 and the sliding bracket assembly 200. The condensation plate 500 can cool, and the air blown by the blowing plate 400 is cooled after passing through the condensation plate 500, and the cooled air is blown to the switch box 600, so that the heat dissipation effect of the switch box 600 is further improved.

[0053] If one or more of the switch boxes 600 among the multiple switch boxes 600 are seriously heated, the heat dissipation by the blowing plate 400 alone is not enough to effectively dissipate the heat of the switch box 600 quickly, thereby affecting the normal operation of the switch box 600. Therefore, the sliding bracket assembly 200 will drive the switch box 600 to move upward in the vertical direction, propping up the switch box 600 to a preset height (the preset height refers to the height required to increase the heat dissipation space below the switch box 600), so that the heat dissipation space below the switch box 600 is increased, and the sliding bracket assembly 200 is provided with an exhaust fan 230. The exhaust fan 230 is started to blow air to the supported switch box 600. The blowing effect of the blowing plate 400 plus the independent blowing effect of the exhaust fan 230 enable the switch box 600 to quickly dissipate the heat, thereby ensuring the normal operation of the switch box 600.

[0054] It should be noted that each switch box 600 is supported by an independent sliding bracket assembly 200. When the heat generation of multiple switch boxes 600 (the number of multiple switch boxes 600 does not exceed half of the total number) is abnormal, the sliding bracket assemblies 200 will support the switch boxes 600 at a preset height for independent heat dissipation, ensuring that each switch box 600 with abnormal heat generation can effectively dissipate heat.

[0055] It can be understood that a temperature sensor can be set on each switch box 600. When the temperature sensed by the temperature sensor on the switch box 600 exceeds a preset value (the preset value refers to the normal heating temperature of the switch box 600), the sliding bracket assembly 200 is started and the exhaust fan 230 is started at the same time, so that the switch box 600 can be effectively cooled.

[0056] Specifically, the sliding bracket assembly 200 includes a base frame 210 and a side frame 220. There are two side frames 220. The two ends of the base frame 210 are respectively arranged on the inner wall of the cabinet 100. The lower ends of the two side frames 220 are respectively hinged on the two sides of the base frame 210. A bracket 240 is slidably arranged on the base frame 210. The bracket 240 slides in the vertical direction on the base frame 210. A first hinge block 222 is fixedly arranged near the upper end of the side frame 220. The two sides of the bracket 240 and the first hinge blocks 222 on the two side frames 220 are hinged to each other through a hinge rod 260. The switch box 600 is installed on the bracket 240, and the bracket 240 is hollow. In the initial state, the two side frames 220 are in a state as shown in FIG. Figure 4 In the state shown, the two side frames 220 are close to the side walls of the switch box 600 to form an inverted figure eight shape. When the two side frames 220 move away from each other, the two side frames 220 drive the bracket 240 to move upward under the action of the hinge rod 260, so the bracket 240 drives the switch box 600 to move upward and then prop up the switch box 600.

[0057] In this embodiment, a connecting plate 213 is provided on the base frame 210, and a vertical slide groove 2131 is provided on the connecting plate 213. Both ends of the bracket 240 have protrusions, which are located in the vertical slide grooves 2131 of the connecting plate 213. The bracket 240 slides in the vertical direction along the vertical slide grooves 2131. Hinge holes 212 are provided on both sides of the base frame 210, and a hinge shaft 221 is provided on the lower end of the side frame 220. The hinge hole 212 and the hinge shaft 221 cooperate to make the side frame 220 and the base frame 210 hinged. A first torsion spring (not shown in the figure) is provided on the hinge shaft 221. The first torsion spring makes the two side frames 220 rotate in a direction away from each other or makes the two side frames 220 have a tendency to move away from each other. In the initial state, the multiple switch boxes 600 are not propped up, and the side frames 220 of each switch box 600 are abutted against each other. Specifically, a top block 225 is disposed at the upper end of the side frame 220, and the top blocks 225 of two adjacent side frames 220 abut against each other to limit the side frame 220 from driving the bracket 240 to rise under the action of the first torsion spring. Fig.12In the first state diagram shown, two adjacent side frames 220 are restricted to each other, so that the first torsion spring is in a force storage state. When the heat dissipation of a switch box 600 increases abnormally, the base frame 210 below the switch box 600 rises, and the rise of the base frame 210 drives the side frames 220 to break free from the restriction. The side frames 220 move away from each other under the action of the first torsion spring, so that the bracket 240 drives the switch box 600 to rise, and the switch box 600 is propped up to a preset height, and the exhaust fan 230 is started to improve the heat dissipation efficiency.

[0058] Specifically, a first slide rail 101 is provided on the inner wall of the cabinet 100, and both ends of the bottom frame 210 are located in the first slide rail 101. The bottom of the first slide rail 101 is provided with an electromagnet 104, and both ends of the bottom frame 210 are provided with magnets (not shown in the figure). In the initial state, the magnetic poles of the electromagnet 104 are opposite to those of the magnet, and the two attract each other, so that the bottom frame 210 is restricted to the bottom of the first slide rail 101. When the abnormal heating of a switch box 600 is detected by the temperature sensor, the magnetic poles of the electromagnet 104 on the first slide rail 101 where the switch box 600 is located are changed. At this time, the magnetic poles of the electromagnet 104 are the same as the magnetic poles of the magnet on the bottom frame 210, and the two repel each other, thereby causing the bottom frame 210 to move upward in the first slide rail 101, so that the side frame 220 is freed from the restriction, and the bracket 240 drives the switch box 600 to move upward.

[0059] It should be noted that the structure for realizing the up and down movement of the base frame 210 in the first slide rail 101 is not limited to the above-mentioned electromagnet 104 and magnet, but may also be other structures, for example, an electric control push rod or an electric control telescopic rod.

[0060] In a further embodiment, a moving frame 300 is provided in the cabinet 100, and the moving frame 300 can reset the supported switch box 600. Specifically, when the heat generation of the switch box 600 is normal, the switch box 600 needs to be reset. At this time, the moving frame 300 moves downward in the cabinet 100 and presses the bottom frame 210 of the switch box 600 to the bottom of the first slide rail 101 again. The protrusions at both ends of the bracket 240 are provided with springs. The setting of the springs prevents the protrusions on the bracket 240 from colliding with the bottom end of the vertical slide groove 2131 when the protrusions on the bracket 240 move in the vertical slide groove 2131 of the connecting plate 213, thereby avoiding collision. The magnetic poles of the electromagnet 104 at the bottom of the first slide rail 101 return to the initial state to re-attract the magnet.

[0061] The mobile frame 300 in this embodiment is provided with a driving motor 310, a rack 103 arranged vertically is provided inside the cabinet 100, and a second slide rail 102 is provided inside the cabinet 100, the second slide rail 102 is vertically arranged, the mobile frame 300 slides in the second slide rail 102 along the vertical direction, the gear on the driving motor 310 is meshed with the rack 103, and when the driving motor 310 is started, the mobile frame 300 moves in the vertical direction inside the cabinet 100. In the initial state, the mobile frame 300 is at the highest position of the cabinet 100. When the switch box 600 needs to be reset, the mobile frame 300 moves downward and then presses down the supported switch box 600. After resetting, the mobile frame 300 moves upward and resets, thereby completing the resetting of the switch box 600.

[0062] In a further embodiment, a conical hole 211 is provided on the base frame 210, with the large end of the conical hole 211 facing downward and the small end facing upward. The wind blown by the blowing plate 400 increases in speed after passing through the conical hole 211, which can improve the heat dissipation effect of the switch box 600. When the base frame 210 rises, the distance between the base frame 210 and the blowing plate 400 increases, and the wind blown by the blowing plate 400 weakens when passing through the base frame 210. The conical hole 211 can also increase the wind speed passing through the conical hole 211, ensuring that the blowing plate 400 can blow air to the supported switch box 600, further improving the heat dissipation effect of the switch box 600.

[0063] In a further embodiment, a guide plate 250 is hinged on the side frame 220, and a second hinge block 223 is fixedly provided on a surface of the side frame 220 away from the switch box 600. The guide plate 250 and the side frame 220 are hinged through the second hinge block 223. A second torsion spring (not shown in the figure) is provided at the position where the guide plate 250 and the second hinge block 223 are hinged. The second torsion spring makes the upper end of the guide plate 250 abut against the side wall of the switch box 600, and the guide plate 250 can play a role in supporting the side wall of the switch box 600. At the same time, a spoiler groove 252 is provided on the side wall of the guide plate 250 close to the switch box 600, as shown in FIG. Figure 8 and Fig. 9As shown, the spoiler groove 252 is in an arc shape, and the portion near the bottom of the guide plate 250 is less recessed, while the portion near the upper end of the guide plate 250 is more recessed but does not penetrate the guide plate 250 . At the same time, a plurality of ventilation grooves 251 are opened on the upper end of the guide plate 250, and the ventilation grooves 251 are evenly distributed. When the upper end of the guide plate 250 abuts against the side wall of the switch box 600, the ventilation grooves 251 on the upper end of the guide plate 250 can allow the wind blown out by the exhaust fan 230 to pass through, so that the gas circulates. At the same time, the wind blown out by the exhaust fan 230 will pass through the spoiler grooves 252. The special shape of the spoiler grooves 252 makes the wind blown out by the exhaust fan 230 change direction after passing through the spoiler grooves 252, from passing through the side wall of the switch box 600 in a vertical direction to blowing toward the side wall of the switch box 600, and then discharged from the ventilation grooves 251, so that the gas blown out by the exhaust fan 230 not only acts on the bottom of the switch box 600 but also acts on the side wall of the switch box 600, thereby greatly improving the heat dissipation efficiency of the switch box 600, thereby reducing the temperature of the switch box 600 more quickly.

[0064] In a further embodiment, there are multiple guide plates 250, and the multiple guide plates 250 are hinged on the side frame 220, and the multiple guide plates 250 are stacked together, and the lengths of the multiple guide plates 250 gradually decrease from top to bottom. This embodiment takes three guide plates 250 as an example. Figure 5 and Figure 6As shown, the top guide plate 250 is the longest, the middle guide plate 250 is the second longest, and the bottom guide plate 250 is the shortest. When the switch box 600 rises, the three guide plates 250 all rotate inward, which can play a role in gathering gas. The top guide plate 250 is the longest, and the range of gas that can be gathered is increased, and the gathered gas is all gas that has not undergone heat exchange. That is to say, the length of the guide plate 250 at the lowest position is shorter, and the gas can be gathered on the side wall where the lowest guide plate 250 abuts against the switch box 600; and the length of the middle guide plate 250 is longer than the lowest guide plate 250, and the gas not gathered by the lowest guide plate 250 is gathered by the middle guide plate 250, that is, the gas is blown to the side wall where the middle guide plate 250 abuts against the switch box 600; similarly, the length of the guide plate 250 at the highest position is longer than the middle guide plate 250, and the gas not gathered by the lowest and middle guide plates 250 is gathered by the uppermost guide plate 250, which also makes this part of the gas blow to the side wall where the guide plate 250 at the highest position abuts against the switch box 600. Therefore, the arrangement of the multi-layer guide plate 250 allows the gas blown out by the exhaust fan 230 to be evenly blown toward the side wall of the switch box 600 and the temperature of the gas blown toward the side wall of the switch box 600 is the same, and the gas contacts the side wall of the switch box 600 for the first time, thereby avoiding the situation where the gas temperature at a higher position in contact with the side wall of the switch box 600 is higher, which leads to a reduction in the gas heat exchange efficiency. At the same time, the arrangement of the multi-layer guide plate 250 allows the switch box 600 to be better supported, thereby improving the stability of the switch box 600.

[0065] It can be understood that when the side frames 220 move away from each other so that the bracket 240 rises, the guide plate 250 on the side frame 220 still abuts against the side wall of the switch box 600 under the action of the second torsion spring, that is, similar to the side wall of the switch box 600 being clamped by a clamp, forming a Figure 3 In the state shown, the upper ends of six guide plates 250 are symmetrically abutted against the side walls of the switch box 600, so that the switch box 600 can still have high stability when it is propped up.

[0066] In a further embodiment, a side ventilation gap 224 is formed on the side frame 220, and the extension direction of the side ventilation gap 224 is perpendicular to the side frame 220. Figure 2 and Figure 7 As shown, a transverse air blowing mechanism (not shown in the figure) is provided in the cabinet 100, and the blowing direction of the transverse air blowing mechanism is perpendicular to the blowing direction of the air blowing plate 400. Figure 2 For example, the direction of the wind blowing in the horizontal hair dryer is along Figure 2In the left and right directions, the airflow passes through the side ventilation gap 224, and at the same time, the airflow can be guided by the guide plate 250 to the side wall of the switch box 600, thereby increasing the air circulation on the side wall of the switch box 600 and further improving the heat dissipation efficiency of the switch box 600.

[0067] The specific working process of a withdrawable switch cabinet with rapid heat dissipation provided by the present application is described below in combination with the above embodiments:

[0068] Install:

[0069] A single switch box 600 is installed on a single bracket 240, and then the bottom frame 210 is moved into the first slide rail 101 of the cabinet 100, and the bottom frame 210 is installed at the lowest position of the first slide rail 101. When installing the second switch box 600, the side frame 220 on the second switch box 600 will abut against the side frame 220 of the first switch box 600, so that the two side frames 220 of the first switch box 600 are close to each other, which also makes the bracket 240 move to the lowest position in the connecting plate 213. When the third and Nth switch boxes are installed subsequently, the side frames 220 of each two adjacent switch boxes 600 abut against each other, so that the limiting plates are separated from each other. After all are installed, the following is formed. Fig.12 In the first state shown, the bottom frame 210 is slidably disposed in the cabinet 100, so as to facilitate the installation of a plurality of switch boxes 600.

[0070] First cooling mode:

[0071] like Fig.12 As shown, this heat dissipation mode is suitable for the heat dissipation of all switch boxes 600. There are a blowing plate 400 and a condensing plate 500 at the bottom. The wind blown out by the blowing plate 400 is cooled by the condensing plate 500 and then blown to all switch boxes 600. The spoiler groove 252 on the guide plate 250 on the side frame 220 changes the wind direction, so that the wind passing vertically through the side wall of the switch box 600 can blow to the side wall of the switch box 600. At the same time, the conical hole 211 arranged on the bottom frame 210 makes the air flow speed of the wind blown out by the blowing plate 400 increase after passing through the conical hole 211, and blows to the switch box 600 more quickly, so the heat dissipation effect is better.

[0072] Second mode cooling:

[0073] During the heat dissipation in the first mode, if one or more switch boxes 600 (the number of the multiple switch boxes 600 does not exceed half of the number of all switch boxes 600) generate a lot of heat, the temperature of one or more switch boxes 600 cannot drop to a normal temperature in the first heat dissipation mode, so the second mode is activated, forming a Fig.13Since each switch box 600 is provided with a temperature sensor, when the temperature value of one or more switch boxes 600 is too high, the electromagnet 104 on the first slide rail 101 where the switch box 600 is located will change its magnetic pole, so that the electromagnet 104 and the magnet on the bottom frame 210 repel each other, thereby pushing the bottom frame 210 to move upward in the first slide rail 101, the position of the side frame 220 rises, the side frame 220 gradually breaks away from the restriction, the side frames 220 on the bottom frame 210 begin to move away from each other, thereby driving the bracket 240 to move upward in the connecting plate 213, thereby driving the switch box 600 to rise, and the side frame 220 on the bottom frame 210 is located at the bottom frame 210. After the exhaust fan 230 on 10 is started, it blows air toward the raised switch box 600. At this time, the switch box 600 is propped up to a certain height, and there is space for heat dissipation at the bottom. At the same time, the temperature of the switch box 600 is reduced under the joint action of the exhaust fan 230 and the blowing plate 400. When the temperature returns to normal, the drive motor 310 is started, and the movable frame 300 moves downward to press the raised switch box 600 down to the initial state. At the same time, the magnetic pole of the electromagnet 104 returns to the initial state and re-adsorbs the base frame 210. After the movable frame 300 is pressed down, the drive motor 310 changes direction to make the movable frame 300 rise and return to its original position.

[0074] The third cooling mode:

[0075] If more than half of the switch boxes 600 generate a lot of heat, the second heat dissipation mode is insufficient to meet the heat dissipation demand, and the third heat dissipation mode is turned on, forming a Fig.14 In the third state shown, all switch boxes 600 are lifted, and the heights of the switch boxes 600 spaced apart from each other are the same, that is, the bottom frames 210 of half of the switch boxes 600 are separated from the first slide rail 101 and pushed upward by the electromagnet 104, so that the height of the switch boxes 600 increases, and the bottom frames 210 of the other half of the switch boxes 600 are adsorbed by the electromagnet 104 in the first slide rail 101 and do not move upward, but because the side frames 220 of the adjacent switch boxes 600 rise, the side frames 220 of this part of the switch boxes 600 are separated from the restriction and drive the bottom frames 210 to rise a little, which is relatively low. All switch boxes 600 are propped up, the exhaust fans 230 on the bracket 240 are turned on, and the heights of the adjacent switch boxes 600 are different, so that the heat dissipation space between each switch box 600 is increased, and the heat dissipation effect is improved.

[0076] Furthermore, the movable rack 300 can be set to move up and down at a fixed time so that the position of each switch box 600 changes. When the movable rack 300 moves down, all the switch boxes 600 are pressed down to the initial state. When the movable rack 300 moves up and resets, the switch boxes 600 that were originally higher will rise to a lower height again, and the switch boxes 600 that were originally lower will rise to an increased height again. The alternating cycle can further improve the heat dissipation effect of the switch boxes 600.

[0077] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0078] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fast heat dissipation withdrawable switch cabinet, characterized in that: include: A cabinet, the cabinet is used to accommodate a switch box, and there are multiple switch boxes; A sliding bracket assembly, the sliding bracket assembly is located in the cabinet, and the sliding bracket assembly is used to drive the switch box to move in the vertical direction in the cabinet; A blowing plate, the blowing plate is located below the sliding bracket assembly, and the blowing plate blows air in a vertical direction; A condensation plate, the condensation plate is located between the sliding bracket assembly and the blowing plate, and the condensation plate is used to cool the air blown out by the blowing plate; The switch box is located on the sliding bracket assembly, and an exhaust fan is provided between the switch box and the sliding bracket assembly. When the heat generation of one of the multiple switch boxes is higher than that of the other switch boxes, the sliding bracket assembly props up the switch box to a preset height, and the exhaust fan blows air to the switch box; The sliding bracket assembly includes a base frame and a side frame, the side frame is hinged on both sides of the base frame, a bracket is slidably arranged on the base frame, the bracket slides in a vertical direction on the base frame, when the side frame rotates in a direction away from the bracket, the side frame drives the bracket to move upward in the vertical direction, and the bracket drives the switch box to move upward; The bottom frame is provided with a connecting plate, the connecting plate is provided with a vertical slide groove, the two ends of the bracket are located in the vertical slide groove, the side frame and the bottom frame are hinged with a first torsion spring, the first torsion spring makes the side frame rotate in a direction away from the bracket or makes the side frame have a tendency to rotate in a direction away from the bracket; In the initial state, two adjacent side frames abut against each other to limit the rotation of the side frames. When the base frame moves upward in the vertical direction so that the side frames are free from the restriction, the side frames drive the bracket to move upward under the action of the first torsion spring. A first slide rail is provided on the inner wall of the cabinet, and the base frame slides in the vertical direction in the first slide rail. An electromagnet is provided at the bottom of the first slide rail, and a magnet is provided on the base frame. In an initial state, the magnetic poles of the electromagnet are opposite to those of the magnet, and the electromagnet attracts the magnet. After the electromagnet changes its magnetic pole, the electromagnet and the magnet repel each other, and the base frame moves upward along the first slide rail.

2. The fast heat dissipation withdrawable switch cabinet according to claim 1, characterized in that: A rack is arranged on the inner wall of the cabinet, and the rack is perpendicular to the cabinet floor. A movable frame is arranged in the cabinet, and a driving motor is arranged on the movable frame. The gear of the driving motor is meshed with the rack, and the driving motor drives the movable frame to move in the vertical direction in the cabinet.

3. The fast heat dissipation withdrawable switch cabinet according to claim 1, characterized in that: The base frame is provided with a conical hole, the large end of the conical hole faces downward and the small end faces upward, and the gas blown out by the blowing plate enters from the large end of the conical hole and blows out from the small end toward the switch box.

4. The fast heat dissipation withdrawable switch cabinet according to claim 3, characterized in that: A guide plate is hinged on the side frame, the upper end of the guide plate abuts against the side wall of the switch box, a ventilation groove is opened on the upper end of the guide plate, and a spoiler groove is opened on a side wall of the guide plate close to the switch box. The spoiler groove is arc-shaped and does not penetrate the guide plate.

5. The fast heat dissipation withdrawable switch cabinet according to claim 4, characterized in that: A second torsion spring is provided at the position where the guide plate is hinged to the side frame, and the second torsion spring enables the guide plate to always abut against the side wall of the switch box.

6. The fast heat dissipation withdrawable switch cabinet according to claim 5, characterized in that: There are a plurality of guide plates, which are stacked layer by layer, and the lengths of the guide plates gradually become shorter from top to bottom.

7. The fast heat dissipation withdrawable switch cabinet according to claim 4, characterized in that: The side frame is provided with a plurality of side ventilation gaps, the extension wind direction of the side ventilation gaps is perpendicular to the side frame, a transverse air blowing mechanism is arranged in the cabinet, and the wind blown out by the transverse air blowing mechanism passes through the side ventilation gaps to make the gas in the cabinet circulate.

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