Direct-current power supply cabinet
By introducing grille ventilation and exhaust ducts into the DC power supply cabinet, combined with a cooling fan system and a double-door design, the problem of low heat dissipation efficiency in high-altitude environments is solved, achieving efficient ventilation and a simple structure.
Patent Information
- Application Number
- CN202420174148.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-24
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-01-24
AI Technical Summary
In high-altitude environments, the heat dissipation efficiency of DC power supply cabinets decreases, leading to frequent equipment failures. Existing technologies require increasing the number of fans and space, thus increasing costs.
A DC power supply cabinet was designed, which includes a busbar control room, a touch screen control room, and power module drawers. It adopts a grille ventilation, exhaust duct, and cooling fan system to ensure unobstructed airflow in the duct and rapid heat dissipation through the fan. The double-door structure reduces the space occupied.
It achieves efficient ventilation, reduces equipment failure rate, reduces production costs and space occupation, has strong adaptability, and has a simple structure.
Smart Images
Figure CN223729282U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to a direct-current power supply cabinet. BACKGROUND
[0002] The direct-current power supply is a kind of power supply equipment capable of providing stable direct-current voltage. It converts and adjusts alternating voltage to generate the required direct-current voltage, and ensures the stability and reliability of the output voltage through functions such as voltage stabilization, current stabilization, overload protection, etc. The direct-current power supply usually has adjustable output voltage and current, and can be adjusted according to user requirements. When the equipment operates in a high-altitude environment, such as an application scenario with an altitude higher than 2500 meters, due to the low temperature caused by high altitude, the temperature changes greatly, the temperature difference between day and night is large, and the air pressure is small, the air is thin, which will cause the cooling fan of the direct-current power supply cabinet to operate at a low efficiency in a high-altitude environment, so that the generated heat of the direct-current power supply cabinet is not easy to take away and is easy to cause fault alarm, affecting production. If the direct-current power supply cabinet does not affect operation due to too high temperature, the number of fans in the direct-current power supply cabinet needs to be increased, thereby increasing the production cost and the space occupied by the equipment. SUMMARY
[0003] The technical problem solved by the application is to overcome the above-mentioned deficiencies in the prior art, and to provide a direct-current power supply cabinet with simple structure, good ventilation effect and strong adaptability.
[0004] The technical solution adopted by the application to solve the above technical problem is: a direct-current power supply cabinet, comprising a cabinet body, the cabinet body is sequentially provided with a bus control room, a touch screen control room and a plurality of power module drawers from top to bottom, characterized in that: a grid hole for ventilation is arranged on the front door of the direct-current power supply cabinet, the power module drawer has a front side air inlet channel, a exhaust air duct is arranged on the rear part of the direct-current power supply cabinet from bottom to top, the exhaust air duct is communicated with the front side air inlet channel, a cabinet fan mounting seat is arranged on the upper part of the exhaust air duct, and a heat dissipation fan mounting seat is arranged in each power module drawer. When the cabinet fan mounting seat is installed with a cabinet fan and the heat dissipation fan mounting seat is installed with a heat dissipation fan, the air is ensured to pass through the heat dissipation fan, the front side air inlet channel, the power module drawer, and then enter the exhaust air duct, and then be discharged from the rear or top of the direct-current power supply cabinet by the cabinet fan, so as to take away the heat in the power module drawer, and the heat in the bus control room and the touch screen control room is directly discharged by the cabinet fan, the ventilation effect is good, the air flow in the air duct is not hindered, and the hot air is uniformly moved to the exhaust air duct direction, which has little effect on the components in the cabinet.
[0005] The exhaust air duct of the application is composed of a cabinet, a rear door and a rear side fixed plate arranged at the rear of the cabinet. The rear side fixed plate is provided with a connector mounting seat and a busbar incoming line row mounting seat. A rear side ventilation channel is arranged on the rear side fixed plate. The rear side ventilation channel is communicated with the front side air inlet channel. The air coming from the front side air inlet channel can directly pass through the rear side ventilation channel and quickly enter the exhaust air duct, thereby improving the ventilation efficiency.
[0006] The rear side ventilation channel corresponds to the front side air inlet channel. The air coming from the front side air inlet channel can directly enter the exhaust air duct from the rear side ventilation channel, thereby preventing the formation of return air.
[0007] The connector mounting seat is provided with an incoming and outgoing line protection cover. The busbar incoming line row mounting seat is provided with a busbar protection cover. The incoming and outgoing line protection cover and the busbar protection cover are made of non-conductive materials, thereby improving the safety of the application.
[0008] The connector mounting seat includes a touch screen control chamber connector mounting seat and a power module drawer connector mounting seat. The touch screen control chamber connector mounting seat is used to mount a touch screen control chamber connector. The power module drawer connector mounting seat is used to mount a power module drawer connector.
[0009] The rear door of the application is a double-door structure. Compared with a single-door structure, the double-door structure occupies less space when the door is opened.
[0010] The busbar control chamber of the application is provided with a sealing baffle. A sealing strip is arranged between the sealing baffle and the cabinet. The touch screen control chamber, the power module drawer and the front side of the cabinet are all sealed by the sealing strip.
[0011] Compared with the prior art, the application has the following advantages and effects: simple structure, good ventilation effect and strong adaptability. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a front view of the front door of the embodiment of the application when the front door is closed.
[0013] Figure 2 is a front view of the front door of the embodiment of the application when the front door is closed.
[0014] Figure 3 is a left side view of the embodiment of the application. Figure 2
[0015] Figure 4 is a back view of the embodiment of the application.
[0016] Figure 5 is a structure diagram of the embodiment of the application after the rear door is removed.
[0017] Figure 6 is a schematic diagram of the ventilation principle of the embodiment of the application.
[0018] In the figure: cabinet 1, rear fixed plate 11, rear ventilation channel 111 on the rear fixed plate, bus outgoing line row mounting seat 12, exhaust air duct 13, front door 14, grid hole 141 on the front door, rear door 15, bus control chamber 2, sealing baffle 21 of the bus control chamber, rear baffle 22 of the bus control chamber, bus incoming line row mounting seat 23, bus incoming line row 231, control chip 24, touch screen control chamber 3, touch screen mounting seat 31, running state indicator light group mounting seat 32, touch screen control chamber connector mounting seat 33, touch control chamber connector adapter seat 34, power module drawer 4, power module drawer connector mounting seat 41, power module drawer connector adapter seat 42, front air inlet channel 43, sealing strip 5, power indicator light mounting hole 6, incoming and outgoing line protective cover 7, cabinet fan mounting seat 8, heat dissipation fan mounting seat 9, bus protective cover 10. DETAILED DESCRIPTION
[0019] The application will be further described in detail below with reference to the accompanying drawings and by embodiments. The following embodiments are an explanation of the application and the application is not limited to the following embodiments. The directions described in the text are all relative to Figure 1 the direction of the figure.
[0020] Referring to Figures 1-6 , the embodiment of the application mainly includes cabinet 1, which is sequentially configured with bus control chamber 2, touch screen control chamber 3 and a plurality of power module drawers 4 from top to bottom. The bus control chamber 2 is provided with a sealing baffle 21, and a sealing strip 5 is arranged between the sealing baffle 21 and the cabinet 1. The front sides of the touch screen control chamber 3, the power module drawers 4 and the cabinet 1 are also sealed by the sealing strip 5.
[0021] The rear fixed plate 11 of the cabinet 1 is used to fix the rear baffle 22 and various connector mounting seats (such as the touch screen control chamber connector mounting seat 33 and the power module drawer connector mounting seat 41), the bus incoming line row mounting seat 23 and the incoming and outgoing line protective cover 7 and the bus protective cover 10. Each power module drawer 4 is installed on the corresponding position of the power module drawer connector mounting seat 41 through a sliding rail. The incoming and outgoing line protective cover 7 and the bus protective cover 10 are made of non-conductive materials to prevent electric shock and protect personal safety. The incoming and outgoing line protective cover 7 covers the power module drawer connector mounting seat 41, and the bus protective cover 10 is installed on the bus incoming line row mounting seat 23. The rear fixed plate 11 is provided with a rear ventilation channel 111. When the power module drawer 4 is combined with the power module drawer connector mounting seat 41 through the sliding rail, the two can be accurately docked and will not be unstable.
[0022] The rear door 15 of the DC power supply cabinet is a double-door structure. When the cabinet is installed on site, the required space at the back is less than that required by a single-door structure. According to the principle that heat rises upwards, the cabinet fan 8 is installed on the upper half of the rear door 7 to take out the heat in the cabinet.
[0023] Figure 6 A schematic diagram of the side of the DC power supply cabinet of the present application is shown. The right side is the front of the embodiment of the present application. The rear of the embodiment forms an exhaust air duct 13 to ensure that the air first passes through the heat dissipation fan, the front air inlet channel 43, and then enters the exhaust air duct 13 from the power module drawer 4, and then is taken out from the rear of the cabinet or the top of the cabinet by the cabinet fan, thereby taking away the heat in the power module drawer 4, and the heat in the bus control chamber 2 and the touch screen control chamber 3 is directly taken out by the cabinet fan.
[0024] The main principle of the present application is:
[0025] The exhaust air duct 13 is an important part of the ventilation system, and its main function is to transfer air, distribute air volume, and control quality. The adjustment and control of the air flow state inside the exhaust air duct 13 can achieve good air flow level, thereby further reducing the temperature in the cabinet.
[0026] The control chip 24 of the present application is installed in the bus control chamber 2 and connected with the bus incoming line row 231. The connector mounting seat can be converted in direction and position through the connector adapter seat, which is convenient for wiring or plugging. For example, the connector mounting seat 33 of the touch screen control chamber is connected with the corresponding touch control chamber connector adapter seat 34, and the touch control chamber connector adapter seat 34 is connected with the bus incoming line row 231. The power module drawer connector mounting seat 41 is connected with the corresponding power module drawer connector adapter seat 42, and the power module drawer connector adapter seat 42 is connected with the bus incoming line row 231.
[0027] The power module drawer 4 of the present application is a whole welding structure around the drawer, which ensures the airtightness, and the drawer structure is convenient for maintenance and replacement. The power module drawer 4 is provided with a heat dissipation fan mounting seat 9, and the heat dissipation fan is mounted on the heat dissipation fan mounting seat 9. The heat inside the drawer is taken out by the heat dissipation fan.
[0028] Technical effects of the present application:
[0029] 1. Ensure the normal operation of the ventilation system;
[0030] 2. Strong versatility. The cabinet structure of the present application adopts a standard module design. Users can assemble according to their needs, and can freely replace the position of the power module drawer, which is more versatile in structure.
[0031] 3. Convenient maintenance
[0032] The cabinet body structure reduces the requirements for storage and transportation sites. Since the main circuits are standardized and installed in the power module drawer, they can be repaired individually without affecting other circuits, and replacement of spare drawers is facilitated, reducing the impact on production, and each drawer has independent space, making it easier to upgrade and modify;
[0033] 4. Strong compatibility
[0034] The cabinet body structure is a fully assembled structure, and the number of modules and the overall structure can be adjusted according to specific requirements, and the compatibility is strong.
Claims
1. A direct current power supply cabinet, comprising a cabinet body, the cabinet body is sequentially provided with a busbar control room, a touch screen control room and a plurality of power module drawers from top to bottom, characterized in that: The front door of the direct current power cabinet is provided with a grid hole for ventilation, the power module drawer has a front side air inlet channel, the rear part of the direct current power cabinet is provided with an exhaust air duct from bottom to top, the exhaust air duct is communicated with the front side air inlet channel, the upper part of the exhaust air duct is provided with a cabinet fan mounting seat, each power module drawer is provided with a heat dissipation fan mounting seat, the exhaust air duct is composed of a cabinet, a rear door and a rear side fixed plate arranged at the rear part of the cabinet, a connector mounting seat is mounted on the rear side fixed plate, a rear side ventilation channel is arranged on the rear side fixed plate and communicated with the front side air inlet channel.
2. The cabinet of claim 1, wherein: The rear side ventilation channel corresponds to the front side air inlet channel.
3. The cabinet of claim 1, wherein: An incoming and outgoing line protection cover is arranged on the connector mounting seat, and a busbar incoming line row mounting seat is provided with a busbar protection cover, and the incoming and outgoing line protection cover and the busbar protection cover are made of non-conductive material.
4. The cabinet of claim 3, wherein: The connector mounting seat includes a touch screen control chamber connector mounting seat and a power module drawer connector mounting seat, the touch screen control chamber connector mounting seat is used for mounting a touch screen control chamber connector, and the power module drawer connector mounting seat is used for mounting a power module drawer connector.
5. The cabinet of claim 1 to 4, characterized in that A rear door is mounted on the rear part of the cabinet, and the rear door is a double door structure.
6. The cabinet of claim 1, wherein: The busbar control chamber is provided with a sealing baffle, and a sealing strip is arranged between the sealing baffle and the cabinet, and the touch screen control chamber, the power module drawer and the cabinet are all sealed by the sealing strip.