Adjustable high-frequency switching power supply cabinet

Abstract

The invention discloses an adjustable high-frequency switching power supply cabinet, and relates to the technical field of power supply cabinets, the adjustable high-frequency switching power supply cabinet comprises a cabinet body, supporting legs are fixedly connected to the corners of the lower surface of the cabinet body, a sealing door is arranged at the opening of the cabinet body, the cabinet body can be stably placed on the ground through the supporting legs, and the sealing door is arranged to enable the cabinet body to be stably placed on the ground. The cabinet body can be in a closed state, the device can be conveniently placed in the inner cavity of the cabinet body, the placement mechanism is fixedly connected to the inner cavity of the cabinet body, and by arranging the placement mechanism, elements needing to be placed can be placed, and the height of the elements in the inner cavity of the cabinet body can be adjusted; the inner wall of the cabinet body is fixedly connected with a dustproof top cover, and the top surface of the inner cavity of the cabinet body is provided with a temperature control mechanism, so that the effect of changing the heat dissipation degree according to the change of the internal temperature is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of power supply cabinets, in particular to an adjustable high-frequency switch power supply cabinet. Background Art

[0002] High-frequency switching power supply cabinet is a key equipment in the field of power electronics. It uses advanced high-frequency switching technology to efficiently convert the input AC power into stable DC output. The interior is composed of power conversion module, control circuit, filter circuit, etc. High-frequency switching power supply cabinet has many advantages. Its high conversion efficiency can effectively reduce energy loss; its high output accuracy can provide accurate and stable power supply for various loads; its small size and light weight save installation space. In communication base stations, it ensures the reliable operation of communication equipment; in data centers, it provides continuous and stable power support for servers and other equipment; in the field of industrial automation, it meets the power supply needs of various production equipment.

[0003] When the high-frequency switching power supply cabinet is working, the internal electronic components will generate a lot of heat during the working process, especially in the summer when the ambient temperature is high and it is the peak period of electricity consumption. The high-load operation of the power supply cabinet will cause high temperature inside the cabinet. In order to avoid fire caused by high temperature, many manufacturers have installed special perfluorohexanone fire extinguishing devices in the power supply cabinet. Although the fire extinguishing device can effectively prevent the occurrence of fire, it not only occupies more internal space of the cabinet, but also cannot fundamentally solve the problem of high temperature inside the power supply cabinet; some users increase the heat dissipation speed of the power supply cabinet by replacing a larger grille and increasing the heat dissipation channel. What's more, they directly open the cabinet door to dissipate heat, so that external dust, insects and small animals enter the cabinet, causing the risk of short circuit of the line to increase greatly; In addition, there are also heat dissipation devices equipped with temperature monitoring systems on the market, which can change the speed of the heat dissipation fan according to the internal temperature of the cabinet to adjust the heat dissipation of the power supply cabinet, but the fans of the above heat dissipation devices are mostly fixed and can only discharge high-temperature air from a fixed part of the cabinet. The heat dissipation area cannot be adjusted according to the actual temperature in the cabinet, resulting in a great limitation of the heat dissipation efficiency; Based on this, we provide an adjustable high-frequency switching power supply cabinet to solve the above problems. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable high-frequency switching power supply cabinet, comprising a cabinet body, support legs are fixedly connected at the corners of the lower surface of the cabinet body, a closed door is provided at the opening of the cabinet body, and the character is that the inner cavity of the cabinet body is provided with a placement mechanism for installing electronic components, a dustproof top cover is fixedly connected to the top of the inner wall of the cabinet body, a temperature control mechanism is provided on the top surface of the inner cavity of the cabinet body, the temperature control mechanism comprises a fixed plate, the fixed plate is fixedly connected to the top surface of the inner cavity of the cabinet body, the outer surface of the fixed plate is fixedly connected to a temperature control box, the outer surface of the temperature control box is penetrated by a bent pipe, the end of the bent pipe away from the temperature control box is fixedly connected to a limiting tube, a second piston is sealed and slidably provided in the limiting tube, and the second piston is connected to the air permeability mechanism.

[0005] Preferably, the placement mechanism includes a limit frame, the limit frame is fixedly connected to a side of the inner surface of the cabinet away from the closed door, a sliding rod is slidably connected to the inner cavity of the limit frame, a movable plate is fixedly connected to a side of the sliding rod away from the limit frame, a placement plate is fixedly connected to a side of the movable plate away from the sliding rod, electronic components are fixedly installed on the upper surface of the placement plate, and an air permeable plate passes through the upper surface of the placement plate.

[0006] Preferably, the ventilation mechanism includes two square frames respectively embedded in the left and right side walls of the cabinet, and the left and right inner sides of the square frames are symmetrically installed with fixing strips, and the outer surfaces of the fixing strips are fixedly connected to the limiting rings, the number of the limiting rings is several, and the limiting rings are evenly distributed, and the same rotating rod is rotatably connected between the two limiting rings at the same position on the left and right sides, the outer surface of the rotating rod is fixedly connected to the closing plate, the side of the rotating rod away from the closing plate is fixedly connected to the connecting plate, the inner surface of the connecting plate is fixedly connected to the limiting ring, the inner cavity of the limiting ring is movably connected to the movable rod, the outer surface of the movable rod located in the inner cavity of the limiting ring is fixedly connected to the cushion, the cushion is extruded and adapted to the inner wall of the limiting ring, and the upper end of the movable rod is connected to the second piston.

[0007] Preferably, the bottom end of the movable rod is fixedly connected to an extrusion frame, the end of the extrusion frame is symmetrically fixedly connected to a second vertical rod, the bottom end of the second vertical rod is fixedly connected to a third piston, one of the third pistons is connected to the heat dissipation mechanism, and the other third piston is connected to the lifting mechanism.

[0008] Preferably, the heat dissipation mechanism includes a breathable net that passes through the side wall of the cabinet, the outer side surface of the cabinet is fixedly connected to a track rod, the outer surface of the track rod is slidably connected to a sliding frame, a sliding cover is installed on the sliding frame, an exhaust fan is installed on the sliding cover, a third vertical rod is fixedly connected to the inner wall of the sliding cover, a fourth piston is fixedly connected to the bottom of the third vertical rod, the outer surface of the fourth piston is sleeved with a second U-shaped tube, the second U-shaped tube passes through the cabinet and slides in a sealed manner with one of the third pistons.

[0009] Preferably, the lifting mechanism includes a fixed block arranged on the back side of the movable plate, the fixed block is fixedly connected to the middle part of the horizontally arranged connecting rod, each two ends of the connecting rod are fixedly connected to a vertically arranged first vertical rod, the bottom end of the first vertical rod is fixedly connected to a first piston, the first piston seals and slides inside one end of a first U-shaped tube, the first U-shaped tube is fixed to the inner wall of the cabinet, and the other end of the first U-shaped tube seals and slides with another third piston.

[0010] Preferably, an opening is provided on the side of the temperature control box away from the bent pipe, a sliding plate is provided in the opening, a sealing ring is fixedly connected to the outer surface of the sliding plate, the sealing ring slides in a sealed manner with the temperature control box, a heat conduction groove is fixedly connected to the lower surface of the temperature control box, a track groove passes through the upper surface of the cabinet, a U-shaped rod is fixedly connected to the side of the sliding plate away from the bent pipe, the U-shaped rod passes through and is slidably connected to the track groove, an end of the U-shaped rod away from the sliding plate is fixedly connected to a limiting rod, a rotating sleeve is rotatably connected to the outer surface of the limiting rod, a second threaded rod is fixedly connected to the side of the rotating sleeve away from the U-shaped rod, a second threaded ring is threadedly connected to the outer surface of the second threaded rod, and the second threaded ring is fixedly connected to the upper surface of the cabinet.

[0011] Preferably, a connecting strip is fixedly connected to the lower surface of the closing plate, a gasket is fixedly connected to the side of the connecting strip away from the closing plate, and the lower surface of the gasket is extruded and fitted with the upper surface of the closing plate.

[0012] The present invention provides an adjustable high-frequency switch power supply cabinet. It has the following beneficial effects:

[0013] The present invention sets a temperature control mechanism and utilizes the principle of air expansion due to heat to adjust the rotation angle of the closing plate in the ventilation mechanism in real time, so as to take into account both the heat dissipation and dust prevention effects of the power cabinet. At the same time, the position of the exhaust fan in the heat dissipation mechanism is adjusted to meet the heat dissipation requirements of different areas in the cabinet. When the power cabinet is under normal load operation, less heat is generated inside the cabinet. The closing plate rotates at a small angle, and the gap between two adjacent closing plates is used as the air inlet. In combination with the ventilation net close to the bottom of the cabinet, the conventional heat dissipation requirements of the power cabinet can be guaranteed, and at the same time, the entry of external dust and debris into the power cabinet can be reduced to the greatest extent. When the power cabinet is running at high load, its internal temperature is high. When the closing plate rotates at a large angle, the exhaust fan rises to the corresponding position of the closing plate, which not only effectively improves the heat dissipation efficiency of the power cabinet in a high temperature environment, but also the up and down switching of the heat dissipation air duct can effectively prevent external debris from entering the cabinet. In addition, the temperature control mechanism can control the lifting mechanism to drive the placement mechanism to move while adjusting the ventilation mechanism and controlling the heat dissipation. When the temperature inside the cabinet is too high, the electronic components on the placement mechanism are lifted upward to make them closer to the air outlet position of the closing plate, thereby further improving the heat dissipation efficiency of the power cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of an adjustable high-frequency switching power supply cabinet of the present invention;

[0015] Figure 2 It is a front view of an adjustable high-frequency switch power supply cabinet of the present invention;

[0016] Figure 3 It is a schematic diagram of the placement mechanism structure of the present invention;

[0017] Figure 4 It is a schematic diagram of the local structure of the placement mechanism of the present invention;

[0018] Figure 5 It is a schematic cross-sectional structure diagram of an adjustable high-frequency switching power supply cabinet of the present invention;

[0019] Figure 6 It is a schematic diagram of the structure of the temperature control mechanism of the present invention;

[0020] Figure 7 It is a schematic diagram of the partial structure of the temperature control mechanism of the present invention;

[0021] Figure 8 It is a schematic diagram of the structure of the ventilation mechanism of the present invention;

[0022] Fig. 9 For the present invention Figure 8 A schematic diagram of the enlarged structure in the middle;

[0023] Fig.10 It is a schematic diagram of the partial structure of the ventilation mechanism of the present invention;

[0024] Fig.11 It is a schematic diagram of the local structure of the heat dissipation mechanism of the present invention.

[0025] In the figure: 1, cabinet; 2, support leg; 3, closed door; 4, placement mechanism; 5, temperature control mechanism; 6, ventilation mechanism; 7, heat dissipation mechanism; 8, track rod; 9, dust cover; 10, ventilation net; 11, track groove; 12, sliding frame; 41, limit frame; 42, sliding rod; 43, movable plate; 44, placement plate; 45, electronic component; 46, ventilation plate; 47, fixed block; 48, connecting rod; 49, first vertical rod; 410, first piston; 411, first U-shaped tube; 51, fixed plate; 52, temperature control box; 53, sliding plate; 54, sealing ring; 55, U-shaped rod; 56 , limit rod; 57, rotating sleeve; 58, second threaded rod; 59, second threaded ring; 510, heat conduction groove; 511, bent pipe; 512, limit pipe; 61, frame; 62, fixing strip; 63, limit ring; 64, rotating rod; 65, connecting plate; 66, limit ring; 67, cushion; 68, movable rod; 69, second piston; 610, closing plate; 611, connecting strip; 612, gasket; 613, extrusion frame; 614, second vertical rod; 615, third piston; 71, sliding cover; 72, exhaust fan; 73, third vertical rod; 74, fourth piston; 75, second U-shaped tube. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0027] like Figure 1-Figure 11As shown, the present invention provides a technical solution: it includes a cabinet 1, support legs 2 are fixedly connected at the corners of the lower surface of the cabinet 1, a closed door 3 is arranged at the opening of the cabinet 1, a placement mechanism 4 for installing electronic components 45 is arranged in the inner cavity of the cabinet 1, a dustproof top cover 9 is fixedly connected to the top of the inner wall of the cabinet 1, and a temperature control mechanism 5 is arranged on the top surface of the inner cavity of the cabinet 1. By setting the temperature control mechanism 5, the temperature in the inner cavity of the cabinet 1 can be monitored, and the working state of the ventilation mechanism 6 can be changed as the temperature of the inner cavity of the cabinet 1 changes, so as to achieve the effect of automatically changing the air permeability of the cabinet 1 after the temperature of the components rises. The temperature control mechanism 5 includes a fixing plate 51, the fixing plate 51 is fixedly connected to the top surface of the inner cavity of the cabinet 1, the outer surface of the fixing plate 51 is fixedly connected to the temperature control box 52, the outer surface of the temperature control box 52 is penetrated by a curved pipe 511, and the curved pipe 511 is away from the temperature control box One end of 52 is fixedly connected to a limiting tube 512, and a second piston 69 is sealed and slidably arranged inside the limiting tube 512. The second piston 69 is connected to the ventilation mechanism 6. By setting the temperature control box 52, the gas in the inner cavity of the cabinet 1 can expand or contract as the temperature in the inner cavity of the cabinet 1 changes, thereby changing the air pressure in the inner cavity of the limiting tube 512. By setting the sliding plate 53, the inner wall of the temperature control box 52 can be sealed, and the air pressure in the inner cavity of the temperature control box 52 can be changed by moving in the inner cavity of the temperature control box 52. By setting the ventilation mechanism 6, it can cooperate with the temperature control mechanism 5, so that when the inner cavity of the cabinet 1 generates high temperature due to the operation of components, the outer side of the cabinet 1 is automatically opened, thereby allowing convection of air inside and outside the cabinet 1, and finally achieving a cooling effect on the high temperature in the inner cavity of the cabinet 1.

[0028] The placement mechanism 4 includes a limit frame 41, which is fixedly connected to a side of the inner surface of the cabinet 1 away from the closed door 3. A sliding rod 42 is slidably connected to the inner cavity of the limit frame 41. A movable plate 43 is fixedly connected to the side of the sliding rod 42 away from the limit frame 41. A placement plate 44 is fixedly connected to the side of the movable plate 43 away from the sliding rod 42. An electronic component 45 is fixedly installed on the upper surface of the placement plate 44. An air-permeable plate 46 runs through the upper surface of the placement plate 44. By setting the limit frame 41, the sliding rod 42 can be limited so that the sliding rod 42 can produce a stable up and down movement effect in the inner cavity of the limit frame 41. By setting the movable plate 43, the placement plate 44 can be driven to move during the sliding of the sliding rod 42, thereby adjusting the height of the electronic component 45. By setting the placement plate 44, the electronic component 45 can be placed. By setting the air-permeable plate 46, the air flow can be facilitated to flow on the outer surface of the placement plate 44, thereby taking away the heat emitted by the electronic component 45 during the flow of the air flow.

[0029] The ventilation mechanism 6 includes two square frames 61 respectively embedded in the left and right side walls of the cabinet 1, and the left and right inner sides of the square frame 61 are symmetrically installed with fixing strips 62. The outer surface of the fixing strip 62 is fixedly connected to the limiting ring 63. The number of the limiting rings 63 is several, and the limiting rings 63 are evenly distributed. By setting the limiting ring 63, the rotating rod 64 can be limited so that the rotating rod 64 can generate stable rotation in the inner cavity of the limiting ring 63, and in the process of rotation, the closing plate 610 is driven to rotate, so that the several closing plates 610 close the opening of the square frame 61. The same rotating rod 64 is rotatably connected between the two limiting rings 63 at the same position on the left and right sides, the outer surface of the rotating rod 64 is fixedly connected to the closing plate 610, and the side of the rotating rod 64 away from the closing plate 610 is fixedly connected to the connecting plate 65, and the inner surface of the connecting plate 65 is fixedly connected to the limiting ring 66. A movable rod 68 is movably connected to the inner cavity of the limiting ring 66. By setting the limiting ring 66, the movable rod 68 can be limited so that the movable rod 68 can move in the inner cavity of the limiting ring 66. The outer surface of the movable rod 68 located in the inner cavity of the limiting ring 66 is fixedly connected with a soft pad 67. The soft pad 67 is squeezed and adapted to the inner wall of the limiting ring 66. The upper end of the movable rod 68 is connected to the second piston 69. The soft pad 67 is made of soft materials such as silicone. When the movable rod 68 moves up and down, the soft pad 67 is squeezed and twisted in the limiting ring 66, thereby ensuring that the limiting ring 66 and the connecting plate 65 can swing around the rotating rod 64 within a certain angle. By setting the soft pad 67, the contact force between the movable rod 68 and the inner wall of the limiting ring 66 can be increased, thereby driving the limiting ring 66 and the connecting plate 65 to move during the up and down movement of the movable rod 68, thereby causing the rotating rod 64 to rotate.

[0030] The bottom end of the movable rod 68 is fixedly connected to an extrusion frame 613, the end of the extrusion frame 613 is symmetrically fixedly connected to a second vertical rod 614, the bottom end of the second vertical rod 614 is fixedly connected to a third piston 615, one of the third pistons 615 is connected to the heat dissipation mechanism 7, and the other third piston 615 is connected to the lifting mechanism.

[0031] The heat dissipation mechanism 7 includes a breathable net 10 that penetrates the side wall of the cabinet 1. The outer side of the cabinet 1 is fixedly connected to a track rod 8. By setting the track rod 8, the sliding frame 12 can be limited, thereby driving the heat dissipation mechanism 7 to produce a vertical up and down movement effect. The outer surface of the track rod 8 is slidably connected to the sliding frame 12. The sliding frame 12 is installed with a sliding cover 71. The sliding cover 71 is installed with an exhaust fan 72. By setting the exhaust fan 72, after the power is connected and the switch is turned on, suction is generated to allow the hot air in the inner cavity of the cabinet 1 to be discharged. A third vertical rod 73 is fixedly connected to the inner wall of the sliding cover 71, and a fourth piston 74 is fixedly connected to the bottom of the third vertical rod 73. A second U-shaped tube 75 is sleeved on the outer surface of the fourth piston 74. The second U-shaped tube 75 passes through the cabinet 1 and slides sealed with one of the third pistons 615. The second U-shaped tube 75 is filled with hydraulic oil. When the temperature in the inner cavity of the cabinet 1 increases and the movable rod 68 moves downward, the fourth piston 74 and the third vertical rod 73 in the second U-shaped tube 75 can drive the sliding cover 71 to move upward through hydraulic transmission.

[0032] The lifting mechanism includes a fixed block 47 arranged on the back of the movable plate 43, the fixed block 47 is fixedly connected to the middle part of the horizontally arranged connecting rod 48, each of the two ends of the connecting rod 48 is fixedly connected to a vertically arranged first vertical rod 49, the bottom end of the first vertical rod 49 is fixedly connected to a first piston 410, the first piston 410 is sealed and slides inside one end of a first U-shaped tube 411, the first U-shaped tube 411 is fixed to the inner wall of the cabinet 1, the other end of the first U-shaped tube 411 is sealed and slides with another third piston 615, the first U-shaped tube 411 is filled with hydraulic oil, when the temperature in the inner cavity of the cabinet 1 rises and the movable rod 68 moves downward, the hydraulic oil is used to lift the movable rod 68 upward. The pressure transmission causes the first piston 410 in the first U-shaped tube 411 to move the first vertical rod 49 upward, and the fixed block 47 drives the movable plate 43 to move upward, so that the placement mechanism 4 and the electronic components 45 mounted thereon are transported to the upper part of the cabinet body near the closing plate 610, so that the high temperature generated by the electronic components 45 when running at high load can be discharged more quickly from the vents between the closing plates 610. At the same time, the space at the bottom of the cabinet body 1 is vacated, reducing the obstruction to the air inlet at the location of the breathable net 10, so that the external low-temperature air can flow in more smoothly. At the same time, when the breathable net 10 is used as the air inlet, it can effectively prevent external foreign matter from entering the cabinet body.

[0033] An opening is provided on one side of the temperature control box 52 away from the elbow 511, and a sliding plate 53 is provided in the opening. A sealing ring 54 is fixedly connected to the outer surface of the sliding plate 53, and the sealing ring 54 slides with the temperature control box 52 in a sealed manner. A heat conduction groove 510 is fixedly connected to the lower surface of the temperature control box 52. A track groove 11 is penetrated through the upper surface of the cabinet 1. By setting the track groove 11, the U-shaped rod 55 can be limited so that the U-shaped rod 55 can produce a lateral movement effect. A U-shaped rod 55 is fixedly connected to the side of the sliding plate 53 away from the elbow 511. The U-shaped rod 55 penetrates and slides in the track groove 11. The end of the U-shaped rod 55 away from the sliding plate 53 is fixedly connected A limiting rod 56 is connected, and a rotating sleeve 57 is rotatably connected to the outer surface of the limiting rod 56. A second threaded rod 58 is fixedly connected to the side of the rotating sleeve 57 away from the U-shaped rod 55. A second threaded ring 59 is threadedly connected to the outer surface of the second threaded rod 58. The second threaded ring 59 is fixedly connected to the upper surface of the cabinet body 1. By setting the limiting rod 56, the rotating sleeve 57 can be limited, so that when the second threaded rod 58 rotates, the U-shaped rod 55 can be subjected to the extrusion force without rotating. By setting the second threaded ring 59, the second threaded rod 58 can be limited, so that when the second threaded rod 58 rotates, it can drive the second threaded rod 58 to rotate. The rotating sleeve 57 at the end of the threaded rod 58 squeezes the limiting rod 56. When in use, when it is necessary to change the sensitivity of the temperature control mechanism 5 to the temperature in the inner cavity of the cabinet 1, the operator rotates the second threaded rod 58, so that the second threaded rod 58 drives the rotating sleeve 57 and the limiting rod 56 to move, thereby changing the position of the sliding plate 53 in the inner cavity of the temperature control box 52. The greater the distance between the sliding plate 53 and the curved pipe 511, the lower the air pressure in the inner cavity of the temperature control box 52. Therefore, when the temperature rises slightly, the second piston 69 in the inner cavity of the limiting pipe 512 can be moved, thereby making the temperature control more sensitive, and vice versa. When the cabinet is working, When the temperature in the inner cavity of the body 1 rises, the hot air will be transferred to the inner cavity of the temperature control box 52 through the heat conduction groove 510, thereby causing the gas in the inner cavity of the temperature control box 52 to expand. During the expansion process, the second piston 69 in the inner cavity of the limiting tube 512 will move downward, thereby opening the breathable mechanism 6. In addition, since the temperature control box 52 is filled with air, it is easier to leak than hydraulic oil. When the air in the temperature control box 52 is obviously insufficient, the sliding plate 53 can be withdrawn from the opening of the temperature control box 52 to replenish the air in the temperature control box 52. After adding sealing oil to the sealing ring 54, the sliding plate 53 can be pushed into the temperature control box 52 again.

[0034] A connecting strip 611 is fixedly connected to the lower surface of the closing plate 610, and a gasket 612 is fixedly connected to the side of the connecting strip 611 away from the closing plate 610. The lower surface of the gasket 612 is squeezed and fitted with the upper surface of the closing plate 610. By providing the gasket 612, when the two closing plates 610 are in contact, the sealing between the closing plates 610 can be improved while preventing the closing plates 610 from being damaged due to contact.

[0035] Working principle: during use, when the temperature inside the cabinet 1 is at the normal operating temperature, under the driving action of the movable rod 68, the closing plate 610 rotates at a small angle. At this time, the gap between the closing plates 610 is small, and as an external low-temperature air inlet, it can meet the normal ventilation needs of the power cabinet, and prevent larger external dust, insects and small animals from entering the cabinet. At the same time, the sliding cover 71 and the exhaust fan 72 are in a lower position, and the exhaust fan 72 draws out the hot air in the cabinet 1 to form a heat dissipation duct from top to bottom; when the electronic components 45 in the cabinet 1 are working at a high load, the temperature inside the cabinet 1 rises significantly, and the hot air has the property of rising, and it is more likely to gather above the inside of the cabinet, resulting in a higher temperature above the inside of the cabinet 1. At this time, under the driving action of the movable rod 68, the closing plate 610 rotates at a larger angle to increase the ventilation area. At the same time, the sliding cover 71 and the exhaust fan 72 are Driven by the movable rod 68, the third piston 615 in the second U-shaped tube 75 moves downward, and through hydraulic transmission, the fourth piston 74 and the third vertical rod 73 drive the sliding cover 71 to move upward, thereby causing the sliding cover 71 to rise to a position above the outside of the cabinet 1, opposite to the vents between the closing plates 610, and the hot air in the cabinet 1 is extracted. At this time, the vents between the closing plates 610 are converted into high-temperature air exhaust vents in the cabinet 1, forming a heat dissipation duct from bottom to top, which makes it easier to discharge the high-temperature air gathered in the upper part of the cabinet. Compared with the heat dissipation duct from top to bottom in the normal state, the hot air will not flow in the opposite direction to affect the electronic components 45 located at the bottom of the cabinet 1. At the same time, the vents between the closing plates 610 serve as exhaust vents. Even if the gap increases, no large external dust, insects and small animals will enter the cabinet 1 against the wind, thereby ensuring the safe operation of the electronic components 45 inside the cabinet.

[0036] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An adjustable high-frequency switching power supply cabinet, comprising a cabinet body (1), wherein the corners of the lower surface of the cabinet body (1) are fixedly connected with support legs (2), and the opening of the cabinet body (1) is provided with a closed door (3), characterized in that: The inner cavity of the cabinet (1) is provided with a placement mechanism (4) for installing an electronic component (45); the top of the inner wall of the cabinet (1) is fixedly connected to a dustproof top cover (9); the top surface of the inner cavity of the cabinet (1) is provided with a temperature control mechanism (5); the temperature control mechanism (5) comprises a fixing plate (51); the fixing plate (51) is fixedly connected to the top surface of the inner cavity of the cabinet (1); the outer surface of the fixing plate (51) is fixedly connected to a temperature control box (52); a curved pipe (511) passes through the outer surface of the temperature control box (52); one end of the curved pipe (511) away from the temperature control box (52) is fixedly connected to a limiting pipe (512); a second piston (69) is sealed and slidably provided inside the limiting pipe (512); the second piston (69) is connected to the air permeability mechanism (6).

2. The adjustable high-frequency switching power supply cabinet according to claim 1, characterized in that: The placement mechanism (4) comprises a limit frame (41), the limit frame (41) is fixedly connected to a side of the inner surface of the cabinet (1) away from the closed door (3), a sliding rod (42) is slidably connected to the inner cavity of the limit frame (41), a movable plate (43) is fixedly connected to the side of the sliding rod (42) away from the limit frame (41), a placement plate (44) is fixedly connected to the side of the movable plate (43) away from the sliding rod (42), an electronic component (45) is fixedly mounted on the upper surface of the placement plate (44), and a breathable plate (46) penetrates the upper surface of the placement plate (44).

3. The adjustable high-frequency switching power supply cabinet according to claim 2 is characterized in that: The ventilation mechanism (6) comprises two square frames (61) respectively embedded in the left and right side walls of the cabinet (1); the left and right inner side surfaces of the square frames (61) are symmetrically mounted with fixing strips (62); the outer surface of the fixing strip (62) is fixedly connected to a limiting ring (63); the number of the limiting rings (63) is several, and the several limiting rings (63) are evenly distributed; the two limiting rings (63) at the same position on the left and right sides are rotatably connected to the same rotating rod (64); the outer surface of the rotating rod (64) is fixedly connected to A closing plate (610), the rotating rod (64) is fixedly connected to a connecting plate (65) on one side away from the closing plate (610), the inner surface of the connecting plate (65) is fixedly connected to a limiting ring (66), the inner cavity of the limiting ring (66) is movably connected to a movable rod (68), the outer surface of the movable rod (68) located in the inner cavity of the limiting ring (66) is fixedly connected to a soft pad (67), the soft pad (67) is extruded and adapted to the inner wall of the limiting ring (66), and the upper end of the movable rod (68) is connected to a second piston (69).

4. The adjustable high-frequency switching power supply cabinet according to claim 3 is characterized in that: The bottom end of the movable rod (68) is fixedly connected to an extrusion frame (613), the end of the extrusion frame (613) is symmetrically fixedly connected to a second vertical rod (614), the bottom end of the second vertical rod (614) is fixedly connected to a third piston (615), one of the third pistons (615) is connected to the heat dissipation mechanism (7), and the other third piston (615) is connected to the lifting mechanism.

5. The adjustable high-frequency switch power supply cabinet according to claim 4 is characterized in that: The heat dissipation mechanism (7) comprises a breathable net (10) penetrating the side wall of the cabinet (1); the outer side surface of the cabinet (1) is fixedly connected to a track rod (8); the outer surface of the track rod (8) is slidably connected to a sliding frame (12); a sliding cover (71) is mounted on the sliding frame (12); an exhaust fan (72) is mounted on the sliding cover (71); a third vertical rod (73) is fixedly connected to the inner wall of the sliding cover (71); a fourth piston (74) is fixedly connected to the bottom of the third vertical rod (73); a second U-shaped tube (75) is sleeved on the outer surface of the fourth piston (74); the second U-shaped tube (75) penetrates the cabinet (1) and slides in a sealed manner with one of the third pistons (615).

6. The adjustable high-frequency switch power supply cabinet according to claim 5, characterized in that: The lifting mechanism comprises a fixed block (47) arranged on the back side of the movable plate (43), the fixed block (47) being fixedly connected to the middle part of a horizontally arranged connecting rod (48), each of the two ends of the connecting rod (48) being fixedly connected to a vertically arranged first vertical rod (49), the bottom end of the first vertical rod (49) being fixedly connected to a first piston (410), the first piston (410) being sealingly slidable inside one end of a first U-shaped tube (411), the first U-shaped tube (411) being fixed to the inner wall of the cabinet (1), and the other end of the first U-shaped tube (411) being sealingly slidable with another third piston (615).

7. The adjustable high-frequency switch power supply cabinet according to claim 6, characterized in that: An opening is provided on a side of the temperature control box (52) away from the bent pipe (511), a sliding plate (53) is provided in the opening, a sealing ring (54) is fixedly connected to the outer surface of the sliding plate (53), the sealing ring (54) slides in a sealed manner with the temperature control box (52), a heat conduction groove (510) is fixedly connected to the lower surface of the temperature control box (52), a track groove (11) passes through the upper surface of the cabinet (1), a U-shaped rod (55) is fixedly connected to the side of the sliding plate (53) away from the bent pipe (511), and the The U-shaped rod (55) penetrates and is slidably connected to the track groove (11); one end of the U-shaped rod (55) away from the sliding plate (53) is fixedly connected to a limiting rod (56); the outer surface of the limiting rod (56) is rotatably connected to a rotating sleeve (57); the side of the rotating sleeve (57) away from the U-shaped rod (55) is fixedly connected to a second threaded rod (58); the outer surface of the second threaded rod (58) is threadedly connected to a second threaded ring (59); and the second threaded ring (59) is fixedly connected to the upper surface of the cabinet (1).

8. The adjustable high-frequency switch power supply cabinet according to claim 7, characterized in that: A connecting strip (611) is fixedly connected to the lower surface of the closing plate (610), a gasket (612) is fixedly connected to the side of the connecting strip (611) away from the closing plate (610), and the lower surface of the gasket (612) is pressed and matched with the upper surface of the closing plate (610).

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