Direct-current power supply cabinet heat dissipation device convenient to disassemble

Abstract

The utility model relates to the field of direct-current power supply cabinets, and discloses a direct-current power supply cabinet heat dissipation device convenient to disassemble, the front side of a power supply cabinet body is rotatably provided with a door plate through a hinge, and the upper end and the lower end of the interior of the power supply cabinet body are respectively and fixedly provided with a partition plate; the two partition plates and the upper end and the lower end of the interior of the power supply cabinet body form two insertion cavities, heat dissipation assemblies are installed in the two insertion cavities in a front-back sliding mode, the insertion cavities are formed in the upper end and the lower end of the interior of the power supply cabinet body, and the two heat dissipation assemblies can be directly inserted into the insertion cavities; a first flow guide plate and a second flow guide plate are arranged at the rear end of the heat dissipation assembly, airflow entering the installation frame can enter the power supply cabinet body along the first flow guide plate and the second flow guide plate and flow towards the middle, and therefore the heat dissipation assembly can be conveniently installed and detached, and follow-up cleaning and maintenance are facilitated. The temperature of the cold air cannot rise due to an overlong flowing path, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of direct current power supply cabinets, in particular to a heat dissipation device for a direct current power supply cabinet which is easy to disassemble. Background Art

[0002] The power cabinet is made of steel and is used to protect the normal operation of components. There are multiple components installed inside it. It is mainly used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc. The components inside the power cabinet will generate a certain amount of heat when working. The heat generated will increase the temperature inside the power cabinet. In order to ensure the normal use of the internal components, a cooling fan is usually installed inside the power cabinet to dissipate the heat and cool the components inside. Some cooling fans will be installed at the bottom of the power cabinet to move the airflow upward. There are many components installed inside the power cabinet. The distance between them and the cooling fan is small, which makes the disassembly and cleaning space of the cooling fan small, and it is not convenient to disassemble, clean and maintain the cooling fan later. To this end, we designed a DC power cabinet heat dissipation device that is easy to disassemble. Utility Model Content

[0003] In order to solve the technical problem that the distance between the components installed inside the power cabinet and the heat dissipation fan is small, which makes it inconvenient to disassemble, clean and maintain the heat dissipation fan at a later time, the utility model provides a heat dissipation device for a DC power cabinet that is easy to disassemble.

[0004] The utility model is implemented by the following technical scheme: a heat dissipation device of a DC power cabinet that is easy to disassemble, comprising a power cabinet, a door panel is rotatably installed on the front side of the power cabinet through a hinge, a partition plate is respectively fixed at the upper and lower ends of the interior of the power cabinet, two partition plates and the upper and lower ends of the interior of the power cabinet form two plug-in cavities, and heat dissipation components are respectively installed in the two plug-in cavities for sliding back and forth.

[0005] As a further improvement of the above scheme, the heat dissipation assembly includes a mounting frame, which is slidably inserted in the plug-in cavity, and a plurality of cooling fans distributed at equal intervals are installed inside the mounting frame toward the rear end, and a mounting frame plate is installed on the front side of the mounting frame by screws, and a dustproof net is arranged on the mounting frame plate. The mounting frame plate is a rectangular plate with a rectangular hole in the middle, which facilitates external airflow to enter the heat dissipation assembly, thereby enabling air cooling of components inside the power supply cabinet.

[0006] As a further improvement of the above-mentioned scheme, countersunk screw holes are opened on the front sides of the left and right ends of the upper surface of the partition plate, and the countersunk screw holes extend downward to the mounting frame. Countersunk screws are threadedly connected between the mounting frame and the partition plate. The countersunk screw holes on the upper and lower partition plates are symmetrically designed, one above the partition plate and the other below the partition plate. After the heat dissipation component is plugged into the plug-in cavity, the heat dissipation component can be quickly fixed so that it cannot move, thereby improving the connection firmness.

[0007] As a further improvement of the above scheme, multiple cooling fans in the same group are designed to be connected in series, and multiple cooling fans are connected to an external circuit board, and the circuit board is directly connected to the power supply of the DC power supply cabinet through a power cord and a plug. When disassembling, just unplug the plug in a straight line, which can achieve quick installation and disassembly.

[0008] As a further improvement of the above-mentioned solution, the bottom end of the interior of the installation frame is inclined to form a guide slope, and the height of the guide slope gradually increases from front to back. When the external liquid falls into the interior of the installation frame, it can slide along the guide slope, and it is also convenient for the internal dust to slide along the guide slope.

[0009] As a further improvement of the above scheme, an air inlet is opened on the upper end of the partition plate, a protective net is arranged above the inside of the air inlet, and the air inlet is connected with the inside of the mounting frame, so as to facilitate the external airflow to enter the power supply cabinet and prevent objects above the inside of the power supply cabinet from falling into the heat dissipation component, thereby improving safety.

[0010] As a further improvement of the above scheme, a guide plate 1 and a guide plate 2 are respectively installed in the upper and lower plug-in cavities, and the guide plate 1 and the guide plate 2 are symmetrically designed. The guide plate 1 and the guide plate 2 are both arc-shaped plates. The airflow entering the installation frame through the heat dissipation fan can enter the power cabinet along the guide plate 1 and the guide plate 2, and the arc-shaped structure of the guide plate 1 and the guide plate 2 can reduce wind resistance and facilitate the entry of airflow.

[0011] As a further improvement of the above scheme, parts are cut away in the middle of the left and right ends of the power supply cabinet to form exhaust ports, and a plurality of louvers with equal spacing are installed in the two exhaust ports, and the lower end of the upper louver is 1-2 cm below the top of the adjacent louver below. The upper and lower airflows enter and flow toward the middle of the power supply cabinet, which facilitates the airflow to be discharged outward through the exhaust port, and reduces the path of the airflow, so that the cold air temperature will not increase due to the excessively long flow path, thereby improving the heat dissipation effect.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model provides plug-in cavities at the upper and lower ends of the power cabinet, respectively, so that two heat dissipation components can be directly plugged into the plug-in cavities, thereby facilitating the installation and disassembly of the heat dissipation components and subsequent cleaning and maintenance;

[0014] 2. By arranging guide plate 1 and guide plate 2 at the rear end of the heat dissipation component, they can reduce wind resistance. The airflow entering the installation frame through the heat dissipation fan can enter the power cabinet along guide plate 1 and guide plate 2 and flow toward the middle, shortening the path of the airflow, so that the cold air temperature will not rise due to the excessively long flow path, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of a heat dissipation device for a DC power supply cabinet that is easy to disassemble provided by the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure without door panels installed;

[0017] Figure 3 for Figure 1 A cross-sectional view of

[0018] Figure 4 for Figure 3 Side schematic diagram of .

[0019] Description of main symbols:

[0020] 1. Power cabinet; 11. Shutters; 12. Exhaust port; 2. Door panel; 3. Heat dissipation assembly; 31. Mounting frame; 32. Cooling fan; 33. Mounting frame; 331. Guide slope; 4. Partition plate; 41. Protective net; 42. Air inlet; 5. Guide plate 1; 6. Guide plate 2. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1-Figure 4 The present embodiment is a heat dissipation device for a DC power cabinet that is easy to disassemble, including a power cabinet 1. A door panel 2 is installed on the front side of the power cabinet 1 through a hinge. A partition plate 4 is fixed at the upper and lower ends of the interior of the power cabinet 1 respectively. The two partition plates 4 and the upper and lower ends of the interior of the power cabinet 1 form two plug-in cavities, and heat dissipation components 3 are installed in the two plug-in cavities for sliding back and forth.

[0024] The heat dissipation component 3 includes a mounting frame 33, which is slidably inserted in the plug-in cavity. A plurality of cooling fans 32 are installed at equal intervals inside the mounting frame 33 toward the rear end, and a mounting frame plate 31 is installed on the front side of the mounting frame 33 by screws. A dustproof net is arranged on the mounting frame plate 31. The mounting frame plate 31 is a rectangular plate with a rectangular hole in the middle to facilitate the external airflow to enter the heat dissipation component 3, thereby being able to perform air cooling on the components inside the power cabinet 1.

[0025] Countersunk screw holes are provided on the front sides of the left and right ends of the upper surface of the partition plate 4, and the countersunk screw holes extend downward to the mounting frame 33. Countersunk screws are threadedly connected between the mounting frame 33 and the partition plate 4. The countersunk screw holes on the upper and lower partition plates 4 are symmetrically designed, one above the partition plate 4 and the other below the partition plate 4. After the heat dissipation component 3 is plugged into the plug-in cavity, the heat dissipation component 3 can be quickly fixed so that it cannot move, thereby improving the connection firmness.

[0026] Multiple cooling fans 32 in the same group are designed to be connected in series, and multiple cooling fans 32 are connected to an external circuit board, which is directly connected to the power supply of the DC power cabinet through a power cord and a plug. When disassembling, just unplug the plug in a straight line, which can achieve quick installation and disassembly.

[0027] The bottom end of the mounting frame 33 is tilted to form a guide slope 331, and the height of the guide slope 331 gradually increases from front to back. When the external liquid falls into the mounting frame 33, it can slide down along the guide slope 331, and it is also convenient for the internal dust to slide down along the guide slope 331.

[0028] An air inlet 42 is provided at the upper end of the partition plate 4, a protective net 41 is provided above the inside of the air inlet 42, and the air inlet 42 is communicated with the inside of the mounting frame 33, so as to facilitate the external airflow to enter the inside of the power cabinet 1 and prevent objects above the inside of the power cabinet 1 from falling into the heat dissipation assembly 3, thereby improving safety.

[0029] A guide plate 1 5 and a guide plate 2 6 are respectively installed in the upper and lower plug-in cavities, and the guide plate 1 5 and the guide plate 2 6 are symmetrically designed. The guide plate 1 5 and the guide plate 2 6 are both arc-shaped plates. The airflow entering the interior of the installation frame 33 through the heat dissipation fan 32 can enter the power cabinet 1 along the guide plate 1 5 and the guide plate 2 6, and the arc-shaped structure of the guide plate 1 5 and the guide plate 2 6 can reduce wind resistance and facilitate the entry of airflow.

[0030] Parts are cut away in the middle of the left and right ends of the power supply cabinet 1 to form exhaust ports 12, and multiple louvers 11 with equal spacing are installed in the two exhaust ports 12, and the lower end of the upper louver 11 is 1-2 cm below the top of the lower adjacent louver 11. The upper and lower air flows enter and flow toward the middle of the power supply cabinet 1, which makes it convenient for the air flow to be discharged outward through the exhaust ports 12, and reduces the path of the air flow, so that the cold air temperature will not increase due to the excessively long flow path, thereby improving the heat dissipation effect.

[0031] The implementation principle of a heat dissipation device for a DC power supply cabinet that is easy to disassemble in the embodiment of the present application is as follows: in actual use, the heat dissipation fan 32 in the upper and lower heat dissipation components 3 can allow external airflow to enter the mounting frame 33, and because the upper and lower heat dissipation components 3 are respectively connected to a guide plate 1 5 and a guide plate 2 6 with an arc-shaped cross-section at the rear, the airflow entering the mounting frame 33 through the heat dissipation fan 32 can enter the power supply cabinet 1 along the guide plate 1 5 and the guide plate 2 6, and the upper and lower airflows can flow toward the middle and discharge the internal heat through the exhaust ports 12 on the left and right sides;

[0032] When disassembling and maintaining, unscrew the countersunk screws between the partition plate 4 and the mounting frame 33, and then directly pull out the heat dissipation assembly 3 to clean and maintain it. When installing, plug it into the plug cavity and fix it with the countersunk screws;

[0033] By providing plug-in cavities at the upper and lower ends of the power cabinet 1, the two heat dissipation components 3 can be directly plugged into the plug-in cavities, thereby facilitating the installation and removal of the heat dissipation components 3 and subsequent cleaning and maintenance;

[0034] By arranging guide plate 1 5 and guide plate 2 6 at the rear end of the heat dissipation component 3, they can reduce wind resistance. The airflow entering the installation frame 33 through the heat dissipation fan 32 can enter the power cabinet 1 along guide plate 1 5 and guide plate 2 6 and flow toward the middle, shortening the path of the airflow, so that the cold air will not cause the cold air temperature to rise due to the excessively long flow path, thereby improving the heat dissipation effect.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A heat dissipation device for a DC power cabinet that is easy to disassemble, comprising a power cabinet (1), wherein a door panel (2) is rotatably mounted on the front side of the power cabinet (1) via a hinge, wherein: A partition plate (4) is fixed to the upper and lower ends of the interior of the power cabinet (1), respectively; the two partition plates (4) and the upper and lower ends of the interior of the power cabinet (1) form two plug-in cavities, and heat dissipation components (3) are respectively installed in the two plug-in cavities for forward and backward sliding.

2. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 1, characterized in that: The heat dissipation assembly (3) comprises a mounting frame (33), the mounting frame (33) is inserted in the insertion cavity by sliding forward and backward, a plurality of heat dissipation fans (32) are installed at an evenly spaced interval inside the mounting frame (33) toward the rear end, and a mounting frame plate (31) is installed on the front side of the mounting frame (33) by screws, and a dustproof net is arranged on the mounting frame plate (31).

3. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 2, characterized in that: Countersunk screw holes are provided on the front sides of the left and right ends of the upper surface of the partition plate (4), and the countersunk screw holes extend downward to the mounting frame (33), and countersunk screws are threadedly connected between the mounting frame (33) and the partition plate (4).

4. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 2, characterized in that: The plurality of heat dissipation fans (32) in the same group are connected in series, and the plurality of heat dissipation fans (32) are connected to an external circuit board.

5. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 2, characterized in that: The bottom end of the installation frame (33) is tilted to form a flow guiding slope (331), and the height of the flow guiding slope (331) gradually increases from front to back.

6. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 2, characterized in that: An air inlet (42) is provided at the upper end of the partition plate (4), a protective net (41) is provided above the air inlet (42), and the air inlet (42) is communicated with the interior of the mounting frame (33).

7. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 1, characterized in that: A guide plate 1 (5) and a guide plate 2 (6) are respectively installed in the upper and lower plug-in cavities, and the guide plate 1 (5) and the guide plate 2 (6) are symmetrically designed. The guide plate 1 (5) and the guide plate 2 (6) are both arc-shaped plates.

8. The heat dissipation device for a DC power supply cabinet that is easy to disassemble as claimed in claim 1, characterized in that: Parts are cut away from the middle of both left and right ends of the power cabinet (1) to form exhaust ports (12), and a plurality of equally spaced louvers (11) are installed in both exhaust ports (12), and the lower end of the upper louver (11) is located 1-2 cm below the top of the lower adjacent louver (11).

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