Direct-current power supply cabinet

Abstract

The invention relates to the technical field of power supply cabinets, in particular to a direct-current power supply cabinet which comprises a power supply cabinet body and further comprises two air inlet channels which are symmetrically formed in the power supply cabinet body, two drying agent storage barrels are symmetrically arranged on the power supply cabinet body, and the two drying agent storage barrels are correspondingly and detachably connected into the two air inlet channels. The drying agent storage barrels are filled with drying agents and used for drying air passing through the air inlet channels, only one air inlet channel of the device is conducted initially, air enters the power cabinet body through one drying agent storage barrel, after the device works for a period of time, the drying agents in the barrels are saturated, the humidity in the cabinet is increased, and the electric push rod is controlled after the humidity sensor detects the humidity. The original ventilation groove communicated with the air inlet channel is blocked, the communication groove is opened to enable the two circular grooves to be communicated, the original ventilation groove not communicated with the air inlet channel is opened, air passes through the two drying agent storage barrels in sequence, the drying agents are fully utilized, waste is avoided, and the service life of the drying agent in the other barrel is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of power cabinets, and particularly to a DC power cabinet. Background Art

[0002] As the "heart protection unit" of the power system, the DC power cabinet converts alternating current into a highly reliable DC power supply, providing uninterrupted power supply support for grid protection devices, communication dispatching terminals, and automation equipment. Its modular redundant architecture (N+1 hot standby) and intelligent monitoring technology (MODBUS protocol) can respond to dispatching instructions in real time and isolate faults. When the main power supply is abnormal, it automatically switches to the battery pack to ensure the continuous operation of core equipment. At the same time, with anti-electromagnetic interference design, it supports the precise control of the intelligent dispatching system and the efficient linkage of the security defense system, ultimately forming a full-chain technical support from fault warning, rapid isolation to emergency recovery, and becoming the physical carrier of the "last line of power defense" in large-scale grid security defense and intelligent dispatching.

[0003] However, as the "power center" of grid security defense and intelligent dispatching, the DC power cabinet's own operating reliability is directly related to system stability. Although the existing technology generally adopts an active heat dissipation architecture (such as a dual-channel axial flow fan + multi-directional air guide duct) to achieve efficient thermal management, in the process of forced convection, the following problems inevitably exist: Although the dynamic air circulation between the intake hole and the exhaust hole can dissipate the heat of the high-heat-generating components in the cabinet, it simultaneously introduces humid air, resulting in an increased oxidation rate of metal contacts, a decrease in the insulation impedance of the PCB, and even local condensation leading to a short circuit. Therefore, we propose a DC power cabinet. Summary of the Invention

[0004] To solve the above technical problems, the embodiment of the present application provides a DC power cabinet, including a power cabinet main body, and further including: two air intake channels symmetrically opened on the power cabinet main body. Two desiccant storage barrels are symmetrically arranged on the power cabinet main body. The two desiccant storage barrels are detachably connected to the two air intake channels correspondingly, and the desiccant storage barrels are filled with desiccants for drying the air passing through the air intake channels. A humidity detection component is arranged in the power cabinet main body. A switching conduction component is arranged in the power cabinet main body. In the initial state, only one air intake channel is conducting. When the humidity detection component detects that the humidity exceeds a certain value, the switching conduction component is used to first make the two air intake channels conducting, so that the air enters the power cabinet main body after passing through the two desiccant storage barrels in sequence. Then, while closing the previously conducting air intake channel, another air intake channel is opened.

[0005] In some embodiments, circular grooves are symmetrically formed in the main body of the power cabinet for installing a desiccant storage barrel. The air inlet channel includes an air inlet groove formed in the main body of the power cabinet, and ventilation grooves communicating with the inner cavity of the power cabinet are formed in the main body of the power cabinet. The air inlet groove is communicated with the ventilation groove through the circular groove.

[0006] In some embodiments, the switching and conducting assembly includes a communication groove formed in the main body of the power cabinet. The two circular grooves are communicated through the communication groove. A rectangular plugging plate I located between the two circular grooves is slidably connected in the main body of the power cabinet. A plurality of rectangular grooves are equidistantly and uniformly formed on the rectangular plugging plate I. Move the rectangular plugging plate I to make the rectangular grooves communicate with the communication groove. A rectangular plugging plate II and a rectangular plugging plate III are respectively arranged on both sides of the circular groove. A plurality of rectangular grooves are also equidistantly and uniformly formed on the rectangular plugging plate II and the rectangular plugging plate III. A pushing member is arranged in the main body of the power cabinet for driving the rectangular plugging plate II and the rectangular plugging plate III to move so as to conduct the air inlet groove and the ventilation groove.

[0007] In some embodiments, the pushing member includes a push plate slidably connected in the main body of the power cabinet. One end of the push plate is fixedly connected to the rectangular plugging plate III. One end of the rectangular plugging plate II is fixedly connected to a round rod. One end of the round rod slidably passes through the other end of the push plate. The outer wall of the round rod is designed with a rubber material for providing frictional resistance when the push plate moves relative to the round rod. Two electric push rods are fixedly connected in the main body of the power cabinet. The extending ends of the two electric push rods are respectively fixed to the two push plates.

[0008] In some embodiments, the humidity detection member is a humidity sensor, and the humidity sensor is electrically connected to the controller of the electric push rod.

[0009] In some embodiments, one end of the rectangular plugging plate I is fixedly connected to a first spring fixed to the inner wall of the power cabinet. A rectangular block is fixedly connected to the rectangular plugging plate I. An L-shaped dialing plate is fixedly connected to the rectangular plugging plate III for contacting the rectangular block and pushing it to move during the movement of the rectangular plugging plate III.

[0010] In some embodiments, the desiccant storage barrel includes a barrel body and a barrel cover. The barrel cover is detachably connected to the barrel body, and a plurality of air permeable holes are formed in the barrel body. A circular plate is rotatably connected to the bottom of the barrel body. One end of the circular plate is fixedly connected to a hollow rectangular dialing plate. A driving member is arranged in the main body of the power cabinet for driving the hollow rectangular dialing plate to rotate to stir the desiccant when driving the circular plate to rotate.

[0011] In some embodiments, the driving member includes a shaft 1 rotatably connected to the main body of the power cabinet, one end of the shaft 1 is fixedly connected to a rotating plate, both ends of the rotating plate are fixedly connected to magnets, and the circular plate is made of iron and is used to be adsorbed by the magnet to connect the rotating plate and the circular plate; A toothed disc 1 is arranged on the shaft 1, and the toothed disc 1 is rotatably connected to the push plate. A driving motor is fixedly connected to the main body of the power supply cabinet, and a toothed disc 2 is fixedly connected to the output end of the driving motor. When the push plate moves, the toothed disc 1 is driven to move and engage with the toothed disc 2.

[0012] In some embodiments, a sliding groove is provided on the shaft 1, and a sliding protrusion is fixedly connected to the gear disc 1, one end of the shaft 1 passes through the gear disc 1, and one end of the sliding protrusion is located in the sliding groove and is slidably connected to its inner wall.

[0013] In some embodiments, an annular groove is provided on the barrel cover, and a T-shaped protrusion is slidably connected in the main body of the power cabinet, an oblique guide groove is provided on the T-shaped protrusion, one end of the rectangular blocking plate three is fixedly connected to a push rod, one end of the push rod is fixedly connected to a shaft three with one end located in the oblique guide groove, and when the rectangular blocking plate one moves, the T-shaped protrusion is driven to embed into the annular groove; A straight guide groove 1 connected to the oblique guide groove is provided on the T-shaped clamping protrusion, which is used to maintain the locking state of the T-shaped clamping protrusion when the rectangular blocking plate 3 continues to be moved. A straight guide groove 2 connected to the oblique guide groove is provided on the T-shaped clamping protrusion.

[0014] The present invention has at least the following beneficial effects: 1. Initially, only one air inlet channel is open, and air enters the power cabinet body through a desiccant storage barrel. After working for a period of time, the desiccant in the barrel is saturated, causing the humidity in the cabinet to rise. After the humidity sensor detects it, it controls the electric push rod to block the ventilation slot that originally opened the air inlet channel, open the connecting slot to make the two circular slots open, and open the ventilation slot that was not open to the air inlet channel, so that the air can pass through the two desiccant storage barrels in turn, making full use of the desiccant, avoiding waste and extending the use time of the other barrel of desiccant.

[0015] 2. After the two desiccant storage barrels have worked together for a period of time, the program controls the electric push rod to block the original conductive air inlet channel and open the original unconducted air inlet channel to make it conductive with the power cabinet body. At this time, the staff can directly pull out the used desiccant storage barrel and replace it with a new one, so that the desiccant can be replaced without cutting off the ventilation, ensuring the safe and continuous operation of the equipment in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 For the present invention Figure 1 Another structural diagram; Figure 3 For the present invention Figure 1 Schematic diagram of the sectional structure Figure 4 For the present invention Figure 3 Schematic diagram of the sectional structure Figure 5 For the present invention Figure 4 Schematic diagram of the sectional structure Figure 6 For the present invention Figure 5 Schematic diagram of the sectional structure Figure 7 For the present invention Figure 6 Schematic diagram of the structure of area A in the present invention Figure 8 For the present invention Figure 6 Schematic diagram of the sectional structure Figure 9 Schematic diagram of the structure of Embodiment 2 of the present invention Figure 10 For the present invention Figure 9 Schematic diagram of the structure of area B in the present invention

[0017] In the figure: 1 - main body of the power cabinet; 2 - air inlet channel; 3 - desiccant storage barrel; 4 - humidity detection component; 5 - switching conduction component; 21 - circular groove; 22 - air inlet groove; 23 - ventilation groove; 24 - communication groove; 25 - first rectangular sealing plate; 26 - rectangular groove; 27 - second rectangular sealing plate; 28 - third rectangular sealing plate; 29 - pushing component; 31 - push plate; 32 - round rod; 33 - electric push rod; 34 - humidity sensor; 35 - first spring; 36 - rectangular block; 37 - L-shaped dial; 38 - barrel body; 39 - barrel cover; 41 - air permeable hole; 42 - round plate; 43 - hollow rectangular dial; 44 - driving component; 45 - first shaft; 46 - rotating plate; 47 - magnet; 48 - first gear disk; 49 - driving motor; 51 - second gear disk; 52 - sliding groove; 53 - sliding convex; 54 - annular clamping groove; 55 - T-shaped clamping convex; 56 - inclined guide groove; 57 - push rod; 58 - third shaft; 59 - first straight guide groove; 61 - second straight guide groove. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: Please refer to Figures 1-8 , the present invention provides a technical solution: A DC power cabinet includes a main body 1 of the power cabinet, and further includes: Two air inlet channels 2 are symmetrically arranged on the main body 1 of the power cabinet; Two desiccant storage barrels 3 are detachably connected to the two air inlet channels 2 correspondingly. The desiccant storage barrel 3 includes a barrel body 38 and a barrel cover 39. The barrel cover 39 is detachably connected to the barrel body 38. A plurality of air-permeable holes 41 are formed in the barrel body 38, and the desiccant storage barrel 3 is filled with desiccant to dry the air passing through the air inlet channel 2, thereby dehumidifying the air entering the interior of the main body 1 of the power cabinet, and thus reducing the probability of damage to the electrical components in the main body 1 of the power cabinet; A humidity detection component 4 is arranged in the main body 1 of the power cabinet for real-time monitoring of the humidity in the main body 1 of the power cabinet; A switching and conducting component 5 is arranged on the main body 1 of the power cabinet. Specifically, in the initial state of the device, only one air inlet channel 2 is in a conducting state. At this time, the air entering the main body 1 of the power cabinet from the outside will pass through a desiccant storage barrel 3. After the device works for a period of time, the desiccant in this desiccant storage barrel 3 tends to be in a saturated state and can no longer absorb the moisture in the air well. As a result, the humidity in the main body 1 of the power cabinet will increase, which is detected by the humidity sensor 34. Then, it controls the two electric push rods 33 to work, pushing the rectangular plugging plate three 28 in the previously conducting air inlet channel 2 to block the corresponding ventilation slot 23, and at the same time pushing the rectangular plugging plate one 25 to open the connecting slot 24, so that the two circular slots 21 are connected. At the same time, the plugging plate three in the previously non-conducting air inlet channel 2 is pushed to open the corresponding ventilation slot 23. After that, the air entering the main body 1 of the power cabinet will pass through the two desiccant storage barrels 3 in sequence, thereby making full use of the desiccant in the previously used desiccant storage barrel 3. While avoiding waste, the service life of the desiccant in the next desiccant storage barrel 3 is extended; Subsequently, after the two desiccant storage barrels 3 work together for a period of time, the electric push rod 33 is started through program control, and then drives the rectangular plugging plate one 25 and the rectangular plugging plate two 27 in the previously conducting air inlet channel 2 to move, blocking the corresponding air inlet channel 2, and at the same time moving and opening the rectangular plugging plate one 25 and the rectangular plugging plate two 27 in the previously non-conducting air inlet channel 2 to make this air inlet channel 2 communicate with the main body 1 of the power cabinet. Then, the staff can directly pull out the used desiccant storage barrel 3 from the circular slot 21. After replacing the new desiccant, install it into the circular slot 21 again, so as to achieve the purpose that ventilation does not need to be cut off when replacing the desiccant, and ensure the safe and continuous operation of the equipment in the main body 1 of the power cabinet.

[0020] The main body 1 of the power cabinet is symmetrically provided with circular slots 21 for installing the desiccant storage barrels 3. The desiccant storage barrels 3 are slidably connected to the inner walls of the circular slots 21; The air inlet passage 2 includes an air inlet groove 22 formed in the main body 1 of the power cabinet, and a ventilation groove 23 that is formed in the main body 1 of the power cabinet and is communicated with its inner cavity. The air inlet groove 22 is communicated with the ventilation groove 23 through a circular groove 21.

[0021] The switching and conducting assembly 5 includes a connecting groove 24 formed in the main body 1 of the power cabinet. The two circular grooves 21 are communicated through the connecting groove 24. A rectangular blocking plate 25 is slidably connected in the main body 1 of the power cabinet and is located between the two circular grooves 21. A plurality of rectangular grooves 26 are equidistantly and uniformly formed on the rectangular blocking plate 25. The rectangular blocking plate 25 is moved so that the rectangular grooves 26 on it communicate with the connecting groove 24, thereby communicating the two circular grooves 21; A rectangular blocking plate 27 and a rectangular blocking plate 28 are respectively arranged on both sides of the circular groove 21. Both the rectangular blocking plate 27 and the rectangular blocking plate 28 are slidably connected to the inner wall of the main body 1 of the power cabinet. Specifically, sliding grooves are formed in the main body 1 of the power cabinet to cooperate with the rectangular blocking plate 25, the rectangular blocking plate 27, and the rectangular blocking plate 28. A plurality of rectangular grooves 26 are also equidistantly and uniformly formed on the rectangular blocking plate 27 and the rectangular blocking plate 28. A pushing member 29 is arranged in the main body 1 of the power cabinet and is used to drive the rectangular blocking plate 27 and the rectangular blocking plate 28 to move so as to communicate the air inlet groove 22 and the ventilation groove 23.

[0022] The pushing member 29 includes a push plate 31 slidably connected in the main body 1 of the power cabinet. One end of the push plate 31 is fixedly connected to the rectangular blocking plate 28. One end of the rectangular blocking plate 27 is fixedly connected to a round rod 32. One end of the round rod 32 slidably passes through the other end of the push plate 31. The outer wall of the round rod 32 is designed with a rubber material and is used to provide frictional resistance for the push plate 31 when it moves relative to the round rod 32; One end of the rectangular blocking plate 25 is fixedly connected to a first spring 35 that is fixedly connected to the inner wall of the main body 1 of the power cabinet. A rectangular block 36 is fixedly connected to the rectangular blocking plate 25. An L-shaped dial 37 is fixedly connected to the rectangular blocking plate 28 and is used to contact the rectangular block 36 and push it to move during the movement of the rectangular blocking plate 28, and is used to compress the first spring 35 to provide a self-restoring elastic force for it during the process of pushing the rectangular blocking plate 28 to move to open the connecting groove 24; Two electric push rods 33 are fixedly connected in the main body 1 of the power cabinet. The extending ends of the two electric push rods 33 are fixedly connected to the two push plates 31 correspondingly; Specifically, when the device works, two unused desiccant storage barrels 3 are inserted into the two circular grooves 21 in sequence, and then the installation operation is completed; Subsequently, only one electric push rod 33 is started to push, thereby driving the push plate 31 to move, thereby driving the corresponding rectangular blocking plate 3 28 to move and open the ventilation slot 23. At the same time, the push plate 31 moves and drives the round rod 32 to move by friction, thereby driving the rectangular blocking plate 2 27 to move and open the air inlet slot 22. After that, when the outside air flows into the power cabinet body 1 through the air inlet channel 2, it needs to be dehumidified by the desiccant storage barrel 3 set in the air inlet channel 2. Through this series of measures, the humidity level of the air entering the power cabinet body 1 can be significantly reduced, thereby effectively reducing the possibility of damage to the electronic equipment in the power cabinet body 1 due to humidity factors, ensuring that the electronic equipment continues to maintain an efficient and stable working state, and ultimately providing stable and reliable maintenance guarantee for the safety of the power grid; As the device continues to operate, the desiccant in the desiccant storage barrel 3 gradually reaches a saturated state, causing its ability to adsorb moisture in the air to decrease significantly, thereby causing the humidity in the power cabinet body 1 to increase. When the humidity in the power cabinet body 1 exceeds the preset threshold of the humidity sensor 34, the device will trigger the subsequent switching process; By starting the electric push rod 33 corresponding to the previously connected air inlet channel 2 to do a pushing action, the push plate 31 is used to drive the rectangular blocking plate 3 28 to move and block the ventilation slot 23, and at the same time, the L-shaped dial plate 37 is used to push the rectangular block 36 and the rectangular blocking plate 1 25 to move to open the connecting slot 24. In this process, due to the obstruction of the inner wall of the sliding groove in the power cabinet body 1, the rectangular blocking plate 2 27 is limited, and then the push plate 31 will slide relative to the round rod 32 on the rectangular blocking plate 27, thereby maintaining the open state of the air inlet slot 22. At the same time, the electric push rod 33 corresponding to the previously unconnected air inlet channel 2 is started to do a pulling action, and then the push plate 31 is used to drive the rectangular block 36 and the rectangular blocking plate 1 25 to move and open the connecting slot 24. The rectangular blocking plate 3 28 moves to open the connecting slot 24. During this process, the rectangular blocking plate 27 is limited due to the obstruction of the inner wall of the sliding slot in the power cabinet body 1, and then the push plate 31 slides relative to the round rod 32 on the rectangular blocking plate 27, thereby maintaining the closed state of the air inlet slot 22. After that, the air entering the power cabinet body 1 will first pass through the desiccant storage barrel 3 in the previously connected air inlet channel 2, and then pass through the desiccant storage barrel 3 in the previously unconnected air inlet channel 2, thereby fully utilizing the desiccant in the previously used desiccant storage barrel 3, while avoiding waste and extending the use time of the desiccant in the next desiccant storage barrel 3; Subsequently, after the two desiccant storage barrels 3 work together for a period of time, the electric push rod 33 corresponding to the previously conducted air inlet channel 2 is controlled by a program to perform a pulling-back action, thereby driving the rectangular sealing plate one 25 and the rectangular sealing plate two 27 to move, blocking the corresponding air inlet channel 2. During this process, the rectangular sealing plate three 28 is pushed by the reset of the first spring 35 to block the connecting groove 24. At the same time, the electric push rod 33 corresponding to the previously non-conducted air inlet channel 2 is controlled by a program to perform a pushing action, moving and opening the rectangular sealing plate one 25 and the rectangular sealing plate two 27 in the previously non-conducted air inlet channel 2, so that this air inlet channel 2 is conducted with the power cabinet main body 1; then the staff can directly pull out the used desiccant storage barrel 3 from the circular groove 21, and after replacing the new desiccant, install it into the circular groove 21 again, so as to achieve that ventilation does not need to be cut off when replacing the desiccant, ensuring the safe and continuous operation of the equipment in the power cabinet main body 1; Further, after switching the air inlet channel 2, if the humidity detected by the humidity sensor 34 still exceeds the standard, the device will conduct both air inlet channels 2 with the power cabinet main body 1 to dehumidify the incoming air.

[0023] The humidity detection component 4 is a humidity sensor 34. The humidity sensor 34 is fixedly connected to the inner wall of the cavity of the power cabinet main body 1 and is as close as possible to the air inlet channel 2. The humidity sensor 34 is electrically connected to the controller of the electric push rod 33 through a wire.

[0024] And a circular plate 42 is rotatably connected to the bottom of the barrel body 38. One end of the circular plate 42 is fixedly connected with a hollow rectangular dial plate 43. The hollow rectangular dial plate 43 is located inside the barrel body 38. A driving member 44 is arranged in the power cabinet main body 1, which is used to drive the hollow rectangular dial plate 43 to rotate when driving the circular plate 42 to rotate so as to stir the desiccant. By continuously rotating and stirring the desiccant, the flow rate of the desiccant in a specific space such as the desiccant storage or treatment area can be increased, enabling the desiccant to come into contact with the surrounding environment more fully, thereby improving the moisture absorption efficiency of the desiccant.

[0025] The driving member 44 includes a first shaft 45 rotatably connected in the power cabinet main body 1. One end of the first shaft 45 is fixedly connected with a rotating plate 46. Magnets 47 are fixedly connected to both ends of the rotating plate 46, and the circular plate 42 is made of iron and is used to be adsorbed by the magnets 47 to connect the rotating plate 46 and the circular plate 42; A first gear disk 48 is slidably connected to the first shaft 45. The first gear disk 48 is rotatably connected to the push plate 31. A driving motor 49 is fixedly connected in the power cabinet main body 1. A second gear disk 51 is fixedly connected to the output end of the driving motor 49. When the push plate 31 moves, it drives the first gear disk 48 to move and mesh with the second gear disk 51. Specifically, the first gear disk 48 corresponding to the conducted air inlet channel 2 will mesh with the second gear disk 51, thereby driving the hollow rectangular dial plate 43 to rotate.

[0026] A chute 52 is provided on the first shaft 45, and a sliding convex 53 is fixedly connected to the first gear disk 48. One end of the first shaft 45 passes through the first gear disk 48, and one end of the sliding convex 53 is located in the chute 52 and is slidably connected to its inner wall.

[0027] Embodiment 2: Please refer to Figures 1-10 , the present invention provides a technical solution: Embodiment 2 is an optimization based on Embodiment 1: An annular clamping groove 54 is provided on the barrel cover 39, and a T-shaped clamping convex 55 is slidably connected in the main body 1 of the power cabinet. An inclined guide groove 56 is provided on the T-shaped clamping convex 55. One end of the rectangular sealing plate three 28 is fixedly connected to a push rod 57, and one end of the push rod 57 is fixedly connected to a third shaft 58 whose one end is located in the inclined guide groove 56. Specifically, when the rectangular sealing plate one 25 moves to open the ventilation groove 23, it drives the push rod 57 to move, and then drives the third shaft 58 to slide along the inclined guide groove 56, thereby driving the T-shaped clamping convex 55 to be embedded in the annular clamping groove 54, and then locking the used desiccant storage barrel 3, so as to prevent the staff from pulling out the used one when replacing the desiccant storage barrel 3; And a straight guide groove one 59 communicating with the inclined guide groove 56 is provided on the T-shaped clamping convex 55 for maintaining the locking state of the T-shaped clamping convex 55 when the rectangular sealing plate three 28 continues to move. A straight guide groove two 61 communicating with the inclined guide groove 56 is provided on the T-shaped clamping convex 55 for maintaining the unlocking state of the T-shaped clamping convex 55 when the rectangular sealing plate three 28 moves.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A DC power supply cabinet, comprising a power supply cabinet body (1), characterized in that: Also included are: Two air inlet channels (2) are symmetrically arranged on the power cabinet body (1); Two desiccant storage barrels (3) are detachably connected to the two air inlet channels (2) respectively, and the desiccant storage barrels (3) are filled with desiccant for drying the air passing through the air inlet channels (2); A humidity detection component (4) is arranged in the power cabinet body (1); The switching conduction component (5) is arranged on the power cabinet body (1). In an initial state, only one air inlet channel (2) is conducted. When the humidity detection component (4) detects that the humidity exceeds a certain value, the switching conduction component (5) is used to first conduct the two air inlet channels (2) so that air passes through the two desiccant storage barrels (3) in sequence and then enters the power cabinet body (1). Then, the previously conducted air inlet channel (2) is closed and the other air inlet channel (2) is opened.

2. The DC power supply cabinet according to claim 1, characterized in that: The power cabinet body (1) is symmetrically provided with circular grooves (21) for installing a desiccant storage barrel (3); the air inlet channel (2) comprises an air inlet groove (22) provided on the power cabinet body (1); and the power cabinet body (1) is provided with a ventilation groove (23) which is in communication with its inner cavity; the air inlet groove (22) is in communication with the ventilation groove (23) via the circular groove (21).

3. The DC power supply cabinet according to claim 2, characterized in that: The switching conduction component (5) comprises a connecting groove (24) provided on the power cabinet body (1), the two circular grooves (21) are connected via the connecting groove (24), and a rectangular blocking plate (25) located between the two circular grooves (21) is slidably connected in the power cabinet body (1), a plurality of rectangular grooves (26) are evenly and equidistantly provided on the rectangular blocking plate (25), and the rectangular blocking plate (25) is moved so that the rectangular grooves (26) are connected to the connecting grooves (24); A rectangular blocking plate 2 (27) and a rectangular blocking plate 3 (28) are respectively arranged on both sides of the circular groove (21); a plurality of rectangular grooves (26) are also evenly and equidistantly provided on the rectangular blocking plate 2 (27) and the rectangular blocking plate 3 (28); a pushing member (29) is arranged in the power cabinet body (1) for driving the rectangular blocking plate 2 (27) and the rectangular blocking plate 3 (28) to move so as to connect the air inlet groove (22) and the ventilation groove (23).

4. The DC power supply cabinet according to claim 3, characterized in that: The pushing member (29) comprises a push plate (31) slidably connected to the power cabinet body (1); one end of the push plate (31) is fixedly connected to the rectangular blocking plate three (28); one end of the rectangular blocking plate two (27) is fixedly connected to a round rod (32); one end of the round rod (32) slides through the other end of the push plate (31); the outer wall of the round rod (32) is designed with rubber material, and is used to provide friction resistance when the push plate (31) moves relative to the round rod (32); Two electric push rods (33) are fixedly connected inside the power cabinet body (1), and the extended ends of the two electric push rods (33) are fixed to the two push plates (31) accordingly.

5. The DC power supply cabinet according to claim 1, characterized in that: The humidity detection component (4) is a humidity sensor (34), and the humidity sensor (34) is electrically connected to a controller of the electric push rod (33).

6. The DC power supply cabinet according to claim 4, characterized in that: One end of the rectangular blocking plate 1 (25) is fixedly connected to a spring 1 (35) fixed to the inner wall of the power cabinet body (1); the rectangular blocking plate 1 (25) is fixedly connected to a rectangular block (36); the rectangular blocking plate 3 (28) is fixedly connected to an L-shaped shifting plate (37) for contacting the rectangular block (36) and pushing the rectangular blocking plate 3 (28) to move during its movement.

7. The DC power supply cabinet according to claim 6, characterized in that: The desiccant storage barrel (3) comprises a barrel body (38) and a barrel cover (39), wherein the barrel cover (39) and the barrel body (38) are detachably connected, and a plurality of air holes (41) are provided on the barrel body (38); A circular plate (42) is rotatably connected to the bottom of the barrel body (38), and a hollow rectangular shifting plate (43) is fixedly connected to one end of the circular plate (42). A driving member (44) is provided in the power cabinet body (1) for driving the hollow rectangular shifting plate (43) to rotate when driving the circular plate (42) to rotate so as to shift the desiccant.

8. The DC power supply cabinet according to claim 7, characterized in that: The driving member (44) comprises a shaft (45) rotatably connected to the power cabinet body (1); one end of the shaft (45) is fixedly connected to a rotating plate (46); both ends of the rotating plate (46) are fixedly connected to magnets (47); and the circular plate (42) is made of iron and is used to be adsorbed by the magnet (47) to connect the rotating plate (46) and the circular plate (42); A toothed disc 1 (48) is provided on the shaft 1 (45), and the toothed disc 1 (48) is rotatably connected to the push plate (31). A driving motor (49) is fixedly connected inside the power cabinet body (1), and a toothed disc 2 (51) is fixedly connected to the output end of the driving motor (49). When the push plate (31) moves, the toothed disc 1 (48) is driven to move and mesh with the toothed disc 2 (51).

9. The DC power supply cabinet according to claim 8, characterized in that: The shaft one (45) is provided with a sliding groove (52), and the toothed disc one (48) is fixedly connected with a sliding protrusion (53); one end of the shaft one (45) passes through the toothed disc one (48), and one end of the sliding protrusion (53) is located in the sliding groove (52) and is slidably connected to the inner wall thereof.

10. The DC power supply cabinet according to claim 9, characterized in that: The barrel cover (39) is provided with an annular groove (54), and a T-shaped protrusion (55) is slidably connected in the power cabinet body (1), and an oblique guide groove (56) is provided on the T-shaped protrusion (55); one end of the rectangular blocking plate 3 (28) is fixedly connected to a push rod (57), and one end of the push rod (57) is fixedly connected to a shaft 3 (58) whose end is located in the oblique guide groove (56), so that when the rectangular blocking plate 1 (25) moves, the T-shaped protrusion (55) is driven to be embedded in the annular groove (54); A straight guide groove (59) communicating with the oblique guide groove (56) is provided on the T-shaped latching protrusion (55) for maintaining the locked state of the T-shaped latching protrusion (55) when the rectangular blocking plate (28) continues to be moved. A straight guide groove (61) communicating with the oblique guide groove (56) is provided on the T-shaped latching protrusion (55).

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