Anti-salt mist air cooling heat dissipation power supply structure

Abstract

The utility model belongs to the field of power supplies, particularly relates to an anti-salt-fog air-cooling heat dissipation power supply structure, and aims to solve the problems that in order to meet the anti-salt-fog requirement of a power supply, the conventional power supply structure is mostly designed to be a closed structure and adopts a natural heat dissipation mode, but when the power supply power is relatively high, the natural heat dissipation mode cannot timely dissipate heat, so that the over-temperature protection of the power supply is extremely easy to cause, and the service life of the power supply is prolonged. In order to solve the problems that in the prior art, salt mist prevention and air-cooled heat dissipation cannot be achieved at the same time, the following scheme is provided that the device comprises a main body frame, an upper cover plate is fixed to the top of the main body frame through inner hexagon screws, and a lower cover plate is fixed to the bottom of the main body frame through inner hexagon screws, and air cooling can be conducted on devices in the main body frame through an air blowing mechanism; and through salt mist prevention surface treatment and conductive rubber shielding strips on the outer surface of the power supply (namely the main body frame) and the second heat dissipation fins in the middle-layer air duct cavity, the whole heat dissipation device can be used in high-humidity and salt mist environments, and meanwhile, the heat dissipation device has dual functions of EMI shielding and environment sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply, in particular to a salt-fog proof air-cooling heat dissipation power supply structure. Background Art

[0002] Ships are used for services such as maritime combat support, technical support and logistical support. Power supplies provide electrical energy in ship system circuits and are an indispensable and important equipment in modern society.

[0003] The working environment during maritime operations is harsh. When the power supply supplies power to the system, the temperature rises quickly and the heat generated is not easy to dissipate. In addition, the power supply is extremely susceptible to corrosion in high temperature, high humidity, high salt, and mold environments, which affects the life of the power supply.

[0004] In order to meet the requirements of salt spray protection, the power supplies on the market are mostly designed as closed structures and use natural heat dissipation. However, when the power supply power is large, the natural heat dissipation method cannot dissipate the heat in time, which can easily cause the power supply to overheat. It cannot meet the requirements of salt spray protection and air cooling at the same time, which is inconvenient. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that most power supply structures are designed as closed structures and adopt natural heat dissipation. However, when the power supply power is large, the natural heat dissipation method cannot dissipate the heat in time, which easily causes power supply over-temperature protection and cannot meet the requirements of salt spray protection and air cooling heat dissipation at the same time, which is relatively inconvenient. A salt spray-proof air-cooled heat dissipation power supply structure is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A salt-fog proof air-cooled heat dissipation power supply structure, comprising a main frame, an upper cover plate is fixed to the top of the main frame by hexagon socket screws, a lower cover plate is fixed to the bottom of the main frame by hexagon socket screws, two bottom plates for assembling printed circuit board components are fixedly arranged on the inner wall of the main frame, the main frame is divided into an upper cavity, a middle air duct cavity and a lower cavity by the two bottom plates, a through hole is opened on the main frame and is connected to the middle air duct cavity, a first ventilation panel and a second ventilation panel are respectively arranged on both sides of the main frame, a plurality of ventilation holes are opened on the first ventilation panel and the second ventilation panel, an opening is opened on the bottom plate, and a plurality of second heat dissipation fins are fixedly arranged on the inner wall of the opening;

[0008] The air blowing mechanism is arranged on the first ventilation panel and is used for air cooling inside the main frame.

[0009] In a possible design, the blowing mechanism includes three fixed tubes and three fans. One side of each of the three fixed tubes is fixedly connected to one side of the first ventilation panel. One end of the fixed tube covers the ventilation holes of the first ventilation panel, and the outer sides of the three fans are respectively fixedly connected to the inner walls of the three fixed tubes.

[0010] In a possible design, conductive rubber shielding strips are fixedly provided at both the top and bottom of the main body frame.

[0011] In a possible design, an electrical interface for facilitating electrical connection is fixedly provided on one side of the main body frame.

[0012] In a possible design, first heat dissipation fins for assisting in heat dissipation are fixedly provided on three sides of the main body frame.

[0013] In a possible design, both the first ventilation panel and the second ventilation panel are fixed to the main body frame by internal hexagon screws.

[0014] In this application, during the production process, both the outer surface of the power supply (i.e., the main body frame) and the second heat dissipation fins in the middle air duct cavity are subjected to anti-salt spray surface treatment, with primer and topcoat sprayed. The material of the main body frame is aluminum alloy. Components such as printed circuit boards are assembled on the bottom plate. After installing the upper cover plate and the lower cover plate on the main body frame, it is then put into use.

[0015] The components within the main body frame generate heat, and the heat is transferred to the second heat dissipation fins. The fans are started, and the start of the fans generates wind, which blows into the main body frame. The blown air flow blows towards the interior of the main body frame and is discharged through the second ventilation panel, thereby enabling air cooling of the components within the main body frame.

[0016] Through the provided conductive rubber shielding strips, the conductive rubber shielding strips can be used in high-humidity and salt-spray environments and have dual functions of EMI shielding and environmental sealing.

[0017] Through the provided electrical interfaces, it is convenient for external electrical connection. Among them, the electrical interfaces all have sealed cavities. The conductive rubber shielding strip is mainly composed of a silicone rubber matrix and conductive particles (such as silver-plated glass, silver-plated aluminum, silver, etc.). These conductive particles are evenly distributed in the silicone rubber to form a conductive network, and good electrical conductivity and electromagnetic shielding effects are achieved by pressing the conductive particles into contact.

[0018] The beneficial effects in this utility model are as follows:

[0019] In the present utility model, for the salt spray-proof air-cooled heat dissipation power supply structure, through the air blowing mechanism, the fan is started. The start of the fan generates wind, which blows into the main frame. The blown air flow blows towards the inside of the main frame and is discharged through the second ventilation panel, thereby enabling air cooling of the devices inside the main frame and effectively dissipating heat.

[0020] In the present utility model, through the air blowing mechanism, the devices inside the main frame can be air-cooled and heat can be effectively dissipated. By performing salt spray-proof surface treatment on the outer surface of the power supply (i.e., the main frame) and the second heat dissipation fins in the middle-layer air duct cavity, and using conductive rubber shielding strips, the whole can be used in high-humidity and salt spray environments, and at the same time has dual functions of EMI shielding and environmental sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic exploded view of a salt spray-proof air-cooled heat dissipation power supply structure proposed by the present utility model;

[0022] Figure 2 is a schematic front view structure of a salt spray-proof air-cooled heat dissipation power supply structure proposed by the present utility model;

[0023] Figure 3 is a schematic side view structure of a salt spray-proof air-cooled heat dissipation power supply structure proposed by the present utility model;

[0024] Figure 4 is a schematic structure view of the air blowing mechanism of a salt spray-proof air-cooled heat dissipation power supply structure proposed by the present utility model.

[0025] In the figure: 1, main frame; 2, first heat dissipation fin; 3, upper cover plate; 4, lower cover plate; 5, first ventilation panel; 6, second ventilation panel; 7, upper layer cavity; 8, conductive rubber shielding strip; 9, middle-layer air duct cavity; 10, fixed pipe; 11, fan; 12, bottom plate; 13, second heat dissipation fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Embodiment 1

[0028] Refer to Figures 1-4, a salt spray-proof air-cooled heat dissipation power supply structure, which is applied in the power supply field, includes: a main frame 1, an upper cover plate 3, a lower cover plate 4, a first ventilation panel 5, a second ventilation panel 6, a bottom plate 12, a blowing mechanism, a conductive rubber shielding strip 8, an electrical interface, and a first heat sink fin 2 and other components. The main frame 1 is made of corrosion-resistant and high-strength metal materials, such as stainless steel or aluminum alloy, to cope with the salt spray environment. The interior of the main frame 1 is divided into an upper cavity 7, a middle air duct cavity 9, and a lower cavity by two bottom plates 12. The upper cavity 7 and the lower cavity are used to install electronic components and printed boards, and the middle air duct cavity 9 serves as the main channel for air-cooled heat dissipation. The upper cover plate 3 and the lower cover plate 4 are respectively fixed to the top and bottom of the main frame 1 by hexagon socket head cap screws to enclose the power supply and protect the internal components from the external environment. The first ventilation panel 5 and the second ventilation panel 6: both are fixed to both sides of the main frame 1 by hexagon socket head cap screws, and multiple ventilation holes are opened on the panels to ensure air circulation. The first ventilation panel 5 is also used to install the blowing mechanism.

[0029] The blowing mechanism includes three fixed pipes 10 and three fans 11. One side of the three fixed pipes 10 is respectively fixedly connected to one side of the first ventilation panel 5, and its position should ensure that one end of the fixed pipe 10 can completely cover some ventilation holes on the first ventilation panel 5 to guide the air flow. The outer sides of the three fans 11 are respectively fixedly connected to the inner walls of the three fixed pipes 10, ensuring that when the fans 11 work, they can inhale external cold air and blow it into the middle air duct cavity 9 through the fixed pipes 10 to achieve air-cooled heat dissipation.

[0030] Embodiment 2

[0031] Reference Figures 1-4 , based on Embodiment 1, the improvements are as follows:

[0032] Conductive rubber shielding strips 8 are fixedly installed on the top and bottom edges of the main frame 1 to improve the electromagnetic shielding performance of the power supply and reduce electromagnetic interference.

[0033] An interface for facilitating electrical connection, such as a terminal block or a socket, is provided on one side of the main frame 1 for connection to external devices or power supplies.

[0034] Multiple rows of first heat sink fins 2 are fixedly arranged on three sides of the main frame 1, and these heat sink fins can increase the heat dissipation area and improve the heat dissipation efficiency.

[0035] A plurality of second heat sink fins 13 are fixedly arranged on the inner wall of the opening formed on the bottom plate 12. These fins directly face the middle air duct cavity 9 and can effectively conduct the heat on the printed board to the air duct and quickly dissipate it through air cooling.

[0036] Among them, the fan 11 is a prior art, and the working principle of the fan 11 will not be elaborated here and can be selected according to needs.

[0037] However, as is well known to those skilled in the art, the working principle and wiring method of the fan 11 are common knowledge, and they all belong to conventional means or well-known common sense. Therefore, they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A salt fog proof air-cooled heat dissipation power supply structure, characterized in that: The invention comprises a main frame (1), wherein an upper cover plate (3) is fixed to the top of the main frame (1) by means of hexagon socket screws, and a lower cover plate (4) is fixed to the bottom of the main frame (1) by means of hexagon socket screws. Two bottom plates (12) for assembling printed circuit board components are fixedly arranged on the inner wall of the main frame (1). The main frame (1) is divided into an upper cavity (7), a middle air duct cavity (9) and a lower cavity by means of the two bottom plates (12). A through hole is provided on the main frame (1) and is connected to the middle air duct cavity (9). A first ventilation panel (5) and a second ventilation panel (6) are respectively provided on both sides of the main frame (1), and a plurality of ventilation holes are provided on the first ventilation panel (5) and the second ventilation panel (6). An opening is provided on the bottom plate (12), and a plurality of second heat dissipation fins (13) are fixedly arranged on the inner wall of the opening. A blower mechanism is provided on the first ventilation panel (5) and is used for air cooling the inside of the main frame (1).

2. The salt-fog proof air-cooled heat dissipation power supply structure according to claim 1, characterized in that: The air blowing mechanism comprises three fixed tubes (10) and three fans (11); one side of the three fixed tubes (10) is fixedly connected to one side of the first ventilation panel (5); one end of the fixed tube (10) covers the ventilation hole of the first ventilation panel (5); and the outer sides of the three fans (11) are fixedly connected to the inner walls of the three fixed tubes (10), respectively.

3. The salt-fog proof air-cooled heat dissipation power supply structure according to claim 1, characterized in that: Conductive rubber shielding strips (8) are fixedly arranged on the top and bottom of the main frame (1).

4. The salt-fog proof air-cooled heat dissipation power supply structure according to claim 1, characterized in that: An electrical interface for facilitating electrical connection is fixedly provided on one side of the main frame (1).

5. The salt-fog proof air-cooled heat dissipation power supply structure according to claim 1, characterized in that: First heat dissipation fins (2) for auxiliary heat dissipation are fixedly arranged on three sides of the main frame (1).

6. The salt-fog proof air-cooled heat dissipation power supply structure according to claim 1, characterized in that: The first ventilation panel (5) and the second ventilation panel (6) are both fixed to the main frame (1) by means of hexagon socket screws.

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