CN113194681A

CN113194681A - Water vapor erosion preventing switching power supply

Info

Publication number: CN113194681A
Application number: CN202110445124.0A
Authority: CN
Inventors: 张俊彦; 卜京
Original assignee: Nanjing University of Science and Technology
Current assignee: Nanjing University of Science and Technology
Priority date: 2021-04-24
Filing date: 2021-04-24
Publication date: 2021-07-30
Anticipated expiration: 2041-04-24
Also published as: CN113194681B

Abstract

The invention discloses a switching power supply capable of preventing water vapor erosion, which comprises a base, wherein an air guide block and a support are fixedly arranged at the top end of the base, a casing is fixedly arranged at the top end of the support, a switching power supply, a first guide plate, a second guide plate, a communicating pipe, a drying ball, a ventilation partition plate, a cooling fan, a cooling hole, a drying box and a drying agent are arranged in the casing, the switching power supply, the drying box and the drying agent are all arranged at the upper end in the casing, and the first guide plate and the second guide plate are all welded with the lower end of the inner wall of the casing. The invention has novel structure, and the device not only can prevent the switch power supply from being corroded, but also is convenient for replacing the drying ball and the drying agent, thereby improving the drying efficiency.

Description

Water vapor erosion preventing switching power supply

Technical Field

The invention relates to the technical field of switching power supplies, in particular to a switching power supply capable of preventing water vapor erosion.

Background

Switching power supplies use a means of high frequency electrical energy conversion that is suitable for most electronic devices.

The existing switching power supply does not have a moisture-proof function, and when the switching power supply works in a humid environment, internal elements of the switching power supply are easily corroded by water vapor, so that the working efficiency of the switching power supply is lowered, and even the elements are damaged.

Disclosure of Invention

The invention aims to provide a switching power supply capable of preventing water vapor erosion, which solves the problem that the working efficiency of the switching power supply is low and even the elements are damaged because the internal elements of the conventional switching power supply are easily eroded by water vapor when the conventional switching power supply works in a humid environment.

In order to achieve the purpose, the invention provides the following technical scheme: a switching power supply capable of preventing water vapor erosion comprises a base, wherein an air guide block and a support are fixedly mounted at the top end of the base, a casing is fixedly mounted at the top end of the support, the inside of the casing is provided with a switching power supply, a first guide plate, a second guide plate, a ventilation partition plate, a cooling fan and a drying box, the switching power supply and the drying box are arranged at the upper end of the inside of the casing, the first guide plate is arranged above the second guide plate and welded with the lower end of the inner wall of the casing, the two guide plates are communicated through a communicating pipe, the ventilation partition plate is arranged below the second guide plate, and a drying ball is placed at the top of the ventilation partition plate; the bottom of the ventilation partition board is provided with a cooling fan, and the bottom of the machine shell is provided with a cooling hole at a position corresponding to the cooling fan.

As a preferred embodiment of the present invention, the first guide plate and the second guide plate are both hollow.

As a preferred embodiment of the present invention, a first cover plate is disposed at a lower end of one side of the casing, and the first cover plate corresponds to the drying ball; the top end of the machine shell is provided with a second cover plate, and the second cover plate corresponds to the position of the drying box.

In a preferred embodiment of the present invention, the drying box is hollow, and a drying agent is placed inside the drying box.

In a preferred embodiment of the present invention, the first guide plate is disposed obliquely downward toward the center, and the second guide plate is disposed obliquely upward toward the center.

As a preferred embodiment of the present invention, the first guide plate and the second guide plate are symmetrically distributed about both ends of the communication pipe.

As a preferred embodiment of the present invention, the air guide block is disposed below the casing, and the air guide block is matched with the heat dissipation holes.

In a preferred embodiment of the present invention, the ventilation partition is welded to the housing, and the ventilation partition is in a hollow design.

Compared with the prior art, the invention has the following beneficial effects:

when the switching power supply runs, the cooling fan rotates, so that the drying ball enters the upper end of the shell where the switching power supply is located along the second guide plate and the communicating pipe, and the drying ball is matched with the drying agent to dry air at the upper end of the shell where the switching power supply is located, so that the switching power supply is prevented from being corroded by water vapor.

According to the invention, the drying balls and the drying agent are convenient to replace in time through the arrangement of the first cover plate and the second cover plate, and the condition that the drying efficiency is lowered due to the fact that the drying balls and the drying agent absorb excessive water vapor is avoided.

According to the invention, the air guide block is matched with the heat dissipation holes, so that hot air exhausted by the heat dissipation holes can be discharged to two sides, and the exhausted hot air is prevented from colliding with the base and returning to the interior of the shell.

In conclusion, the device not only can prevent the switching power supply from being corroded, but also is convenient for replacing the drying ball and the drying agent, and improves the drying efficiency.

Drawings

Fig. 1 is a schematic side sectional view of a switching power supply with resistance to water vapor erosion according to the present invention.

Fig. 2 is a schematic front view of a switching power supply with resistance to water vapor erosion according to the present invention.

Fig. 3 is a schematic top view of a switching power supply with resistance to water vapor erosion according to the present invention.

Reference numbers in the figures: 1. a housing; 2. a switching power supply; 3. a first guide plate; 4. a second guide plate; 5. a communicating pipe; 6. drying the balls; 7. a ventilation baffle; 8. a heat radiation fan; 10. a support; 11. a base; 12. a first cover plate; 13. drying the box; 14. a desiccant; 15. a second cover plate; 16. and a wind guide block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Aiming at the problem that the internal elements of the existing switching power supply are easily corroded by water vapor when the switching power supply works in a humid environment, so that the working efficiency of the switching power supply is low and even the elements are damaged, the invention provides the following technical scheme:

referring to fig. 1-3, a switching power supply for preventing water vapor erosion includes a base 11, a wind guide block 16 and a bracket 10 are fixedly installed at the top end of the base 11, a casing 1 is fixedly installed at the top end of the bracket 10, a switching power supply 2, a first guide plate 3, a second guide plate 4, a communication pipe 5, a drying ball 6, a ventilation partition plate 7, a heat dissipation fan 8, a heat dissipation hole, a drying box 13 and a drying agent 14 are arranged inside the casing 1, the switching power supply 2, the drying box 13 and the drying agent 14 are all arranged at the upper end inside the casing 1, the first guide plate 3 and the second guide plate 4 are all welded with the lower end of the inner wall of the casing 1, the first guide plate 3 is arranged above the second guide plate 4, the first guide plate 3 and the second guide plate 4 are arranged in a communication manner through the communication pipe 5, and both the first guide plate 3 and the second guide plate 4 are designed in a hollow manner, the ventilation baffle 7 is arranged below the second guide plate 4, the drying ball 6 is arranged at the top end of the ventilation baffle 7, the heat radiation fan 8 is fixedly arranged at the bottom end of the casing 1, the heat radiation holes are formed in the bottom end of the casing 1, and the heat radiation holes are matched with the heat radiation fan 8.

Switching power supply 2 is when the operation, rotate through radiator fan 8, make drying ball 6 along

second deflector

4 and 5 entering switching power supply 2 place's casing 1 upper end communicating pipe, cooperation drier 14, the air to the casing 1 upper end at switching power supply 2 place carries out the drying, switching power supply has been avoided being eroded by steam, setting through first apron 12 and second apron 15, be convenient for in time change drying ball 6 and drier 14, avoided drying ball 6 and drier 14 to absorb the condition emergence that too much steam leads to the drying efficiency step-down.

The drying machine comprises a machine shell 1, a drying ball 6, a first cover plate 12, a second cover plate 15 and a drying box 13, wherein the lower end of one side of the machine shell 1 is provided with the first cover plate 12, the first cover plate 12 is matched with the drying ball 6, and the second cover plate 15 is matched with the drying box 13.

The drying box 13 is designed to be hollow, and the drying agent 14 is disposed inside the drying box 13.

Wherein, first deflector 3 is slope downward setting to the center, just second deflector 4 is slope upward setting to the center, first deflector 3 and second deflector 4 are the symmetric distribution about 5 both ends of communicating pipe.

The air guide block 16 is disposed below the casing 1, and the air guide block 16 is matched with the heat dissipation holes.

Through the matching of the air guide block 16 and the heat dissipation holes, the hot air discharged from the heat dissipation holes can be discharged to both sides, and the discharged hot air is prevented from colliding with the base 11 and returning to the inside of the casing 1.

The ventilation partition plate 7 is welded with the machine shell 1, and the ventilation partition plate 7 is in a hollow design.

The working principle of the embodiment is as follows: when the switching power supply 2 operates, the drying ball 6 enters the upper end of the casing 1 where the switching power supply 2 is located and is matched with the drying agent 14 to dry humid air, the switching power supply 2 is prevented from being eroded by water vapor, and the operation process is as follows: when the switch power supply 2 operates, the heat radiation fan 8 is electrified, so that the heat radiation fan 8 rotates, the wind power generated by the rotation of the heat radiation fan 8 enables the drying ball 6 to enter the upper end of the machine shell 1 where the switch power supply 2 is positioned along the second guide plate 4 and the communicating pipe 5, then moves around the upper end of the casing 1 where the switching power supply 2 is located, and the drying agent 14 is cooperated to dry the humid air, and the wind force generated when the heat radiation fan 8 rotates makes the air circulation rate faster, thereby, the heat of the switching power supply 2 is dissipated, and the heat of the switching power supply 2 is discharged from the heat dissipating hole, the air guide block 16 is arranged to discharge the discharged hot air to two sides, so that the discharged hot air is prevented from colliding with the base 11 and returning to the interior of the machine shell 1, after the drying ball 6 and the drying agent 14 absorb more water vapor, the drying ball 6 and the drying agent 14 can be replaced by opening the first cover plate 12 and the second cover plate 15.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A switching power supply for preventing water vapor erosion comprises a base (11), the top end of the base (11) is fixedly provided with an air guide block (16) and a bracket (10), a casing (1) is fixedly arranged at the top end of the bracket (10), a switching power supply (2), a first guide plate (3), a second guide plate (4), a ventilation partition plate (7), a cooling fan (8) and a drying box (13) are arranged in the casing (1), the switch power supply (2) and the drying box (13) are arranged at the upper end inside the casing (1), the first guide plate (3) is arranged above the second guide plate (4), and are welded with the lower end of the inner wall of the shell (1), the two guide plates are communicated through a communicating pipe (5), the ventilation partition plate (7) is arranged below the second guide plate (4), and the top of the ventilation partition plate (7) is provided with the drying ball (6); the bottom of the ventilation partition plate (7) is provided with a heat radiation fan (8), and the bottom of the machine shell (1) is provided with heat radiation holes corresponding to the heat radiation fan (8).

2. The moisture erosion resistant switching power supply of claim 1, wherein: the first guide plate (3) and the second guide plate (4) are both in hollow design.

3. The moisture erosion resistant switching power supply of claim 1, wherein: the drying machine is characterized in that a first cover plate (12) is arranged at the lower end of one side of the machine shell (1), and the first cover plate (12) corresponds to the drying ball (6).

4. The moisture erosion resistant switching power supply of claim 1, wherein: the top end of the machine shell (1) is provided with a second cover plate (15), and the second cover plate (15) corresponds to the position of the drying box (13).

5. The steam-corrosion-resistant switching power supply according to claim 1 or 2, characterized in that: the drying box (13) is in a hollow design, and a drying agent (14) is placed inside the drying box.

6. The moisture erosion resistant switching power supply of claim 1, wherein: the first guide plate (3) is arranged downwards in an inclined mode towards the center, and the second guide plate (4) is arranged upwards in an inclined mode towards the center.

7. The moisture erosion resistant switching power supply of claim 6, wherein: the first guide plate (3) and the second guide plate (4) are symmetrically distributed about two ends of the communicating pipe (5).

8. The moisture erosion resistant switching power supply of claim 1, wherein: the air guide block (16) is arranged below the machine shell (1), and the air guide block (16) is matched with a heat dissipation hole in the bottom of the machine shell (1).

9. The moisture erosion resistant switching power supply of claim 1, wherein: the ventilation partition plate (7) is welded with the machine shell (1).

10. The steam-corrosion-resistant switching power supply according to claim 1 or 9, characterized in that: the ventilation partition plate (7) is in a hollow design.