A DC distribution cabinet

Abstract

The present invention relates to the technical field of electric power equipment, and discloses a DC power distribution cabinet, including a main cabinet, a dehumidification mechanism is installed on the top of the inner wall of the main cabinet, guide rail assemblies are fixedly connected on both sides of the inner wall of the main cabinet, a plurality of partition assemblies are arranged inside the main cabinet, the plurality of partition assemblies are connected to two electrical component mounting frames, the partition assemblies are used to divide the internal space of the main cabinet, the tops of the plurality of partition assemblies are provided with air flow grooves, and the air flow grooves on two adjacent partition assemblies are staggered on the left and right; the present invention can circulate the air inside the main cabinet by providing a dehumidification mechanism, and condensed water is condensed by the evaporator of the refrigeration system during the circulation process, so as to achieve a dehumidification effect, thereby avoiding safety hazards caused by excessive humidity in some areas, and since the dried air is cooled by the evaporator of the refrigeration system while absorbing heat, the dehumidification mechanism outputs dry cold air, which can have a cooling effect on the electrical components inside the main cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and more specifically to a direct current distribution cabinet. Background Art

[0002] The DC power distribution cabinet is an important part of the power system, mainly used to distribute and manage DC power. It usually contains multiple DC circuits to transmit DC power to various load devices. It has the following characteristics: providing stable DC power to ensure the normal operation of the equipment; having overload, short circuit and other protection functions to ensure system safety; being able to monitor and control parameters such as current and voltage. In practical applications, DC power distribution cabinets are widely used in many fields, such as data centers, providing reliable power for servers and other equipment; in communication systems, ensuring the stable operation of communication equipment; and in the field of industrial automation, providing power support for control systems.

[0003] Existing DC distribution cabinets have defects. In some areas, the air humidity is high, which will cause excessive moisture in the cabinet, posing a safety hazard. For example, it may cause a short circuit to cause electrical failure, and the internal electrical components may become damp and affect their performance and life. Secondly, there are a large number of electrical components installed in the cabinet, which makes it difficult to troubleshoot during maintenance and inspection, and different components are prone to affect each other when failures occur. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a DC distribution cabinet to solve the problems in the above-mentioned background technology that the humidity in some areas is high, the traditional DC distribution cabinet has safety hazards under the influence of moisture, there are a large number of electrical components in the cabinet, and it is difficult to check during maintenance and repair.

[0005] The present invention provides the following technical solutions: a DC power distribution cabinet, comprising a main cabinet, a dehumidification mechanism is installed on the top of the inner wall of the main cabinet, guide rail assemblies are fixedly connected to both sides of the inner wall of the main cabinet, a plurality of partition assemblies are arranged inside the main cabinet, a plurality of the partition assemblies are connected to two electrical component mounting frames, the partition assemblies are used to separate the inner space of the main cabinet, a plurality of the partition assemblies are provided with air flow grooves on the tops of the plurality of the partition assemblies, the air flow grooves on two adjacent partition assemblies are staggered left and right, the dehumidification mechanism cooperates with the partition assemblies and the air flow grooves to realize uniform distribution of the air flow inside the main cabinet, and the partition assemblies cooperate with the guide rail assemblies to realize the size adjustment of the separated space;

[0006] The dehumidification mechanism includes a drainage box and a refrigeration system. The evaporator of the refrigeration system is installed inside the drainage box, and the other components of the refrigeration system are installed outside the main cabinet. The drainage box is installed on the top of the inner wall of the main cabinet, and an exhaust passage is arranged inside the drainage box. The back of the drainage box is provided with a plurality of through holes that penetrate to the outside of the main cabinet, and axial flow fans are installed in the plurality of through holes. The plurality of through holes are sealed by a cover shell, and the cover shell is connected with the inside of the main cabinet through a circulation pipe. The connection point between the circulation pipe and the main cabinet is arranged at the bottom end of one side of the main cabinet.

[0007] Furthermore, the rotation speed of the axial flow fan is 300 to 500 revolutions per minute.

[0008] Furthermore, a plurality of positioning slide bars are fixedly connected to both sides of the inner wall of the main cabinet, and the partition assembly is slidably sleeved on the side walls of the plurality of positioning slide bars.

[0009] Furthermore, the drainage box includes a box shell, and a plurality of drainage outlets are opened at the bottom of the inner wall of the box shell. The plurality of drainage outlets are connected to drainage pipes through a plurality of branch pipes respectively. The drainage pipe has an opening only at one end, and the opening end of the drainage pipe passes through the outside of the main cabinet.

[0010] Furthermore, a slope plate is fixedly connected to the bottom of the inner wall of the box shell, and the drain outlet is arranged at the end of the slope plate.

[0011] Furthermore, the vertical height of the opening end of the drain pipe is lower than the vertical height of the other end.

[0012] Furthermore, the exhaust duct includes an air duct shell, the air duct shell is provided with an air inlet on the side facing the axial flow fan, the bottom of the air duct shell passes through the drainage box to the inside of the main cabinet, the bottom of the air duct shell is provided with an air outlet, and a double-sided tape is fixedly installed on the inner wall of the air duct shell away from the air inlet.

[0013] Furthermore, the partition assembly includes a main partition, two longitudinal sleeve blocks and two transverse sleeve blocks are arranged at the bottom of the main partition, the inner cavity of the transverse sleeve block is movably sleeved with a rotating shaft, both ends of the rotating shaft are fixedly connected with gears, the guide rail assembly includes a main rail, the back of the main rail is provided with a rack, the gear is meshed with the rack, the inner cavity of the longitudinal sleeve block is provided with a rotating drive mechanism, and the output end of the rotating drive mechanism is connected to the gear.

[0014] Furthermore, the rotary drive mechanism includes a rotary rod, a worm, and a worm wheel. The rotary rod is movably connected to the inner cavity of the longitudinal sleeve block, and the worm is movably connected to the inner side surfaces of the two longitudinal sleeve blocks. One end of the rotary rod is fixedly connected to the worm, and the other end of the rotary rod is connected to a circular handle. The worm and the worm wheel are meshed with each other, and the worm wheel is fixedly connected to the side wall of the rotary shaft.

[0015] Furthermore, the circular handle is located at the bottom of the main partition, and a slot extending from the bottom of the main partition to the top is provided, and the side wall of the circular handle passes through the slot to the top of the main partition.

[0016] Technical effects and advantages of the present invention:

[0017] The present invention can circulate the air inside the main cabinet by providing a dehumidification mechanism. During the circulation process, the evaporator of the refrigeration system is used to condense condensed water, thereby achieving a dehumidification effect, avoiding safety hazards caused by excessive humidity in some areas. Since the dried air is cooled by the evaporator of the refrigeration system, the dehumidification mechanism outputs dry cold air, which can cool the electrical components inside the main cabinet, thereby improving the heat dissipation performance of the DC distribution cabinet.

[0018] By setting up several partition assemblies, the interior of the main cabinet can be divided into multiple electrical component installation spaces. By classifying and planning several electrical components and installing them in different spaces, it is easier to troubleshoot during maintenance and inspection, and the interference rate to other electrical components is reduced when a single electrical component fails. The sizes of different space areas can be adjusted by cooperating with partition assemblies and guide rail assemblies, making space differentiation more flexible.

[0019] In addition, through the distribution relationship of the air flow slots on the several partition components, in conjunction with the dehumidification mechanism's internal air circulation effect on the main cabinet, the dry cold air output by the dehumidification mechanism flows from top to bottom in a serpentine shape inside the main cabinet, so that the flowing airflow can be evenly distributed inside the main cabinet, thereby avoiding uneven heat dissipation of several electrical components installed inside the main cabinet, further improving the heat dissipation performance of the DC distribution cabinet;

[0020] When the air is circulated internally through the dehumidification mechanism, the dust inside the main cabinet can be driven away. When the air is input into the main cabinet through the exhaust duct, the dust mixed in the air can also be adsorbed. After multiple air circulations, the dust inside the main cabinet can be self-cleaned, thereby reducing the dust cleaning cycle of the DC distribution cabinet and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 An enlarged schematic diagram of the partition assembly and guide rail assembly structure;

[0023] Figure 3 For the present invention Figure 1 Schematic diagram of the dehumidification mechanism structure;

[0024] Figure 4 For the present invention Figure 1 Explosion diagram of the dehumidification mechanism structure;

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of drainage box structure;

[0026] Figure 6 For the present invention Figure 4 Schematic diagram of the cross-sectional structure of the exhaust duct;

[0027] Figure 7 For the present invention Figure 2 Schematic diagram of the explosion of the partition assembly and the guide rail assembly structure;

[0028] Figure 8 For the present invention Figure 7 Schematic diagram of the rotary drive mechanism structure.

[0029] Fig. 9 For the present invention Figure 7 Schematic diagram of the main partition structure.

[0030] The accompanying drawings are marked as follows: 1. main cabinet; 2. dehumidification mechanism; 3. partition assembly; 4. guide rail assembly; 5. positioning slide; 6. air flow groove; 7. electrical component mounting frame; 21. drainage box; 22. exhaust duct; 23. cover shell; 24. axial flow fan; 25. circulation pipe; 26. refrigeration system; 211. box shell; 212. ramp plate; 213. drain outlet; 214. branch pipe; 215. drain pipe; 221. duct shell; 222. air inlet; 223. air outlet; 224. double-sided adhesive tape; 31. main partition; 32. longitudinal sleeve block; 33. transverse sleeve block; 34. swivel shaft; 35. gear; 36. rotary drive mechanism; 37. notch; 41. main rail; 42. rack; 361. rotary rod; 362. worm; 363. round handle; 364. worm wheel. DETAILED DESCRIPTION

[0031] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1 and Figure 2 , 3 4. The present invention provides a DC power distribution cabinet, including a main cabinet 1, a dehumidification mechanism 2 is installed on the top of the inner wall of the main cabinet 1, and guide rail components 4 are fixedly connected on both sides of the inner wall of the main cabinet 1. A plurality of partition components 3 are arranged inside the main cabinet 1, and the plurality of partition components 3 are connected to two electrical component mounting frames 7. The partition components 3 are used to separate the internal space of the main cabinet 1, and the tops of the plurality of partition components 3 are all provided with air flow grooves 6. The air flow grooves 6 on two adjacent partition components 3 are staggered left and right. The dehumidification mechanism 2 cooperates with the partition components 3 and the air flow grooves 6 to achieve uniform distribution of the air flow inside the main cabinet 1, and the partition components 3 cooperate with the guide rail components 4 to achieve the size adjustment of the separated space;

[0033] The dehumidification mechanism 2 includes a drainage box 21 and a refrigeration system 26. The evaporator of the refrigeration system 26 is installed inside the drainage box 21, and the other components of the refrigeration system 26 are installed outside the main cabinet 1. The drainage box 21 is installed on the top of the inner wall of the main cabinet 1. An exhaust channel 22 is arranged inside the drainage box 21. A plurality of through holes penetrating to the outside of the main cabinet 1 are arranged on the back of the drainage box 21. Axial fans 24 are installed in the plurality of through holes. The plurality of through holes are sealed by a cover shell 23. The cover shell 23 is connected to the inside of the main cabinet 1 through a circulation pipe 25. The connection point between the circulation pipe 25 and the main cabinet 1 is arranged at the bottom end of one side of the main cabinet 1.

[0034] Reference Figure 4 The speed of the axial flow fan 24 is 300 to 500 revolutions per minute, so that the axial flow fan 24 runs at a low speed to ensure that the circulating airflow is fully in contact with the evaporator of the refrigeration system 26 inside the drainage box 21 to achieve a condensation and dehumidification effect.

[0035] Reference Figure 1 A plurality of positioning slides 5 are fixedly connected to both sides of the inner wall of the main cabinet 1, and the partition assembly 3 is slidably sleeved on the side walls of the plurality of positioning slides 5. By setting the positioning slides 5, the stability of the partition assembly 3 when moving up and down can be improved.

[0036] Reference Figure 5 The drainage box 21 includes a box shell 211, and a plurality of drainage ports 213 are provided at the bottom of the inner wall of the box shell 211. The plurality of drainage ports 213 are respectively connected to drainage pipes 215 through a plurality of branch pipes 214. The drainage pipe 215 has only one end with an opening, and the open end of the drainage pipe 215 passes through the outside of the main cabinet 1. The condensed water collected in the drainage box 21 enters the drainage pipe 215 through the drainage port 213, and the condensed water can be discharged to the outside of the main cabinet 1 through the drainage pipe 215.

[0037] Reference Figure 5 A slope plate 212 is fixedly connected to the bottom of the inner wall of the box shell 211, and a drain port 213 is arranged at the end of the slope plate 212. The condensed water inside the drainage box 21 can be easily drained from the box shell 211 under the action of the slope surface of the slope plate 212 to avoid water accumulation.

[0038] Reference Figure 5 The vertical height of the open end of the drain pipe 215 is lower than the vertical height of the other end, ensuring that the water inside the drain pipe 215 can be completely discharged to avoid water accumulation.

[0039] Reference Figure 6The exhaust channel 22 includes a duct shell 221, and an air inlet 222 is arranged on the side of the duct shell 221 facing the axial flow fan 24. The bottom of the duct shell 221 passes through the drainage box 21 to the inside of the main cabinet 1, and an air outlet 223 is arranged at the bottom of the duct shell 221. A double-sided adhesive tape 224 is fixedly installed on the inner wall of the duct shell 221 away from the air inlet 222. The air flow inside the drainage box 21 enters the inside of the duct shell 221 through the air inlet 222, and then flows downward through the air outlet 223 and is input into the inside of the main cabinet 1, thereby achieving the exhaust effect of the exhaust channel 22. When the air circulates through the dehumidification mechanism 2, the dust inside the main cabinet 1 can be driven, and the air flow entering the duct shell 221 contacts the double-sided adhesive tape 224. The stickiness of the double-sided adhesive tape 224 can adsorb the dust in the air flow, thereby making the exhaust of the exhaust channel 22 possible to process the dust, so that the device has a certain self-cleaning effect.

[0040] Reference Figure 7 The partition assembly 3 includes a main partition 31, and two longitudinal sleeve blocks 32 and two transverse sleeve blocks 33 are arranged at the bottom of the main partition 31. The inner cavity of the transverse sleeve block 33 is movably sleeved with a rotating shaft 34, and both ends of the rotating shaft 34 are fixedly connected with gears 35. The guide rail assembly 4 includes a main rail 41, and a rack 42 is arranged on the back of the main rail 41. The gear 35 is meshed with the rack 42. The inner cavity of the longitudinal sleeve block 32 is provided with a rotary drive mechanism 36, and the output end of the rotary drive mechanism 36 is connected to the gear 35. When in use, the rotary drive mechanism 36 drives the rotating shaft 34 to rotate, and the two gears 35 are driven to rotate by the rotating shaft 34. Through the meshing relationship between the gear 35 and the rack 42, the height of the partition assembly 3 is adjusted.

[0041] Reference Figure 8 The rotary drive mechanism 36 includes a rotary rod 361, a worm 362, and a worm wheel 364. The rotary rod 361 is movably sleeved in the inner cavity of the longitudinal sleeve block 32, and the worm 362 is movably sleeved on the inner side surfaces of the two longitudinal sleeve blocks 32. One end of the rotary rod 361 is fixedly connected to the worm 362, and the other end of the rotary rod 361 is connected to a circular handle 363. The worm 362 and the worm wheel 364 are meshed with each other, and the worm wheel 364 is fixedly connected to the side wall of the rotary shaft 34. When in use, the rotary rod 361 is driven to rotate by rotating the circular handle 363. Through the connection relationship between the rotary rod 361 and the worm 362, the worm 362 can be made to rotate synchronously, thereby driving the worm wheel 364 to rotate, and the rotary shaft 34 is driven to rotate by the worm wheel 364, thereby achieving the rotary drive effect of the rotary drive mechanism 36. Through the cooperation relationship between the worm 362 and the worm wheel 364, a one-way locking effect is achieved to prevent the partition assembly 3 from falling due to gravity.

[0042] Reference Fig. 9The circular handle 363 is located at the bottom of the main partition 31. A slot 37 extending from the bottom to the top of the main partition 31 is provided. The side wall of the circular handle 363 passes through the slot 37 to the top of the main partition 31. When in use, the operator can complete the height adjustment by rubbing the main partition 31 at the top of the partition assembly 3, making the operation process smoother.

[0043] Working principle of the present invention: when the air humidity inside the equipment is too high, a plurality of axial flow fans 24 are operated to make the circulation pipe 25 extract the air inside the main cabinet 1 and output it to the inside of the drainage box 21. The air inside the drainage box 21 is re-input into the main cabinet 1 through the exhaust duct 22 to form an air circulation. During this process, the refrigeration system 26 is operated. Since the electrical components inside the main cabinet 1 generate heat, the circulating air carries a certain amount of heat. At this time, the air entering the drainage box 21 contacts the evaporator of the refrigeration system 26 to form condensed water. The condensed water is collected and discharged to the outside of the main cabinet 1 through the drainage box 21, thereby achieving a dehumidification effect. After the air is cooled by the evaporator of the refrigeration system 26, it is re-input into the main cabinet 1, which helps the electrical components inside the main cabinet 1 to dissipate heat and improves the heat dissipation performance of the equipment.

[0044] By setting a plurality of partition assemblies 3, the internal space of the main cabinet 1 can be vertically divided to form a plurality of electrical component installation spaces, so that the electrical components can be classified and planned for installation, and it is easier to locate a certain unit of electrical components during maintenance and inspection, thereby avoiding the difficulty of maintenance and inspection caused by disordered assembly of electrical components. The height of the partition assembly 3 can be adjusted by cooperating with the guide rail assembly 4, thereby realizing the size adjustment of the installation space of multiple electrical components;

[0045] The various separated spaces are connected by the air flow grooves 6 arranged on the several partition assemblies 3, so that the airflow can pass through the various separated spaces. At the same time, the path planning effect of the airflow direction inside the main cabinet 1 is also achieved. When the dehumidification mechanism 2 is running for air circulation, the airflow reaches a serpentine flow direction when passing through the various separated spaces, thereby facilitating the uniform contact of the flowing air with the several electrical components installed inside the main cabinet 1, thereby making the heat dissipation of the several electrical components inside the main cabinet 1 more uniform.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. The present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A DC power distribution cabinet, comprising a main cabinet (1), characterized in that: A dehumidification mechanism (2) is installed on the top of the inner wall of the main cabinet (1), and guide rail assemblies (4) are fixedly connected to both sides of the inner wall of the main cabinet (1). A plurality of partition assemblies (3) are arranged inside the main cabinet (1), and a plurality of the partition assemblies (3) are connected to two electrical component mounting frames (7). The partition assemblies (3) are used to separate the internal space of the main cabinet (1). The tops of the plurality of partition assemblies (3) are provided with air flow grooves (6), and the air flow grooves (6) on two adjacent partition assemblies (3) are staggeredly distributed left and right. The dehumidification mechanism (2) cooperates with the partition assemblies (3) and the air flow grooves (6) to achieve uniform distribution of the internal air flow of the main cabinet (1), and the partition assemblies (3) cooperate with the guide rail assemblies (4) to achieve size adjustment of the separated space. The dehumidification mechanism (2) comprises a drainage box (21) and a refrigeration system (26); the evaporator of the refrigeration system (26) is installed inside the drainage box (21); the other components of the refrigeration system (26) are installed outside the main cabinet (1); the drainage box (21) is installed on the top of the inner wall of the main cabinet (1); an exhaust passage (22) is arranged inside the drainage box (21); a plurality of through holes penetrating to the outside of the main cabinet (1) are arranged on the back of the drainage box (21); axial fans (24) are installed in the plurality of through holes; the plurality of through holes are sealed by a cover (23); the cover (23) is connected to the inside of the main cabinet (1) through a circulation pipe (25); the connection point between the circulation pipe (25) and the main cabinet (1) is arranged at the bottom end of one side of the main cabinet (1); The exhaust passage (22) comprises an air duct shell (221), an air inlet (222) is arranged on the side of the air duct shell (221) facing the axial flow fan (24), the bottom of the air duct shell (221) passes through the drainage box (21) to the inside of the main cabinet (1), an air outlet (223) is arranged on the bottom of the air duct shell (221), and a double-sided adhesive tape (224) is fixedly installed on the inner wall of the air duct shell (221) away from the air inlet (222); The partition assembly (3) comprises a main partition (31), two longitudinal sleeve blocks (32) and two transverse sleeve blocks (33) are arranged at the bottom of the main partition (31), a rotating shaft (34) is movably sleeved in the inner cavity of the transverse sleeve block (33), and gears (35) are fixedly connected at both ends of the rotating shaft (34); the guide rail assembly (4) comprises a main rail (41), a rack (42) is arranged at the back of the main rail (41), the gear (35) is meshed with the rack (42), and a rotating drive mechanism (36) is arranged in the inner cavity of the longitudinal sleeve block (32), and the output end of the rotating drive mechanism (36) is connected to the gear (35); The rotary drive mechanism (36) comprises a rotary rod (361), a worm (362), and a worm wheel (364); the rotary rod (361) is movably sleeved in the inner cavity of the longitudinal sleeve block (32); the worm (362) is movably sleeved on the inner side surfaces of the two longitudinal sleeve blocks (32); one end of the rotary rod (361) is fixedly connected to the worm (362); the other end of the rotary rod (361) is connected to a round handle (363); the worm (362) and the worm wheel (364) are meshed with each other; and the worm wheel (364) is fixedly connected to the side wall of the rotary shaft (34); The circular handle (363) is located at the bottom of the main partition (31), and a notch (37) is provided at the bottom of the main partition (31) extending to the top, and a side wall of the circular handle (363) passes through the notch (37) to the top of the main partition (31).

2. A DC power distribution cabinet according to claim 1, characterized in that: The rotation speed of the axial flow fan (24) is 300 to 500 revolutions per minute.

3. A DC power distribution cabinet according to claim 1, characterized in that: A plurality of positioning slide bars (5) are fixedly connected to the inner walls of the main cabinet (1) on both sides, and the partition assembly (3) is slidably sleeved on the side walls of the plurality of positioning slide bars (5).

4. A DC power distribution cabinet according to claim 1, characterized in that: The drainage box (21) comprises a box shell (211), the bottom of the inner wall of the box shell (211) is provided with a plurality of drainage openings (213), the plurality of drainage openings (213) are respectively connected to a drainage pipe (215) via a plurality of branch pipes (214), the drainage pipe (215) is provided with an opening at only one end, and the open end of the drainage pipe (215) passes through the outside of the main cabinet (1).

5. A DC power distribution cabinet according to claim 4, characterized in that: The bottom of the inner wall of the box shell (211) is fixedly connected with a slope plate (212), and the drainage port (213) is arranged at the end of the slope plate (212).

6. A DC power distribution cabinet according to claim 4, characterized in that: The vertical height of the open end of the drainage pipe (215) is lower than the vertical height of the other end.

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