Moisture-proof switching power supply

Abstract

The utility model discloses a moisture-proof switching power supply, which belongs to the technical field of switching power supplies and comprises a shell, a plurality of heat dissipation ports are arranged on two side surfaces of the shell at equal intervals, threaded rods are symmetrically arranged on the inner wall of one side of the shell, and the two threaded rods are rotatably connected with the inner wall of the shell. Limiting plates are fixedly arranged on the inner top face of the shell and located on one sides of the two threaded rods, the two threaded rods both penetrate through the limiting plates, the peripheral sides of the two threaded rods are both sleeved with a plurality of movable plates in a threaded mode, and baffles used for limiting the heat dissipation openings are arranged on the inner walls of the two sides of the shell and located on one sides of the heat dissipation openings. A vertical plate is longitudinally and fixedly arranged on the top face of each baffle, one side face of each vertical plate is rotationally connected with a pin shaft, and the free end of each pin shaft is fixedly connected with the inner side wall of the shell. According to the moisture-proof switching power supply, the problem that water and moisture enter the switching power supply along the heat dissipation opening is solved, and the service life of the switching power supply is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of switching power supplies, in particular to a moisture-proof switching power supply. Background Art

[0002] A switching power supply, also known as an exchange power supply or a switching converter, is a high-frequency electric energy conversion device and a type of power supply. Existing switching power supplies are provided with heat dissipation holes to dissipate heat from internal devices. When the switching power supply is in a water or humid environment, water and moisture can easily enter the switching power supply through the heat dissipation holes, causing the internal devices and circuit boards to break easily, thereby damaging the switching power supply and reducing the service life of the switching power supply.

[0003] For example, the existing Chinese publication number is: CN212381522U, a switch power box, which: "comprises a shell, the upper side wall of the shell is rotatably connected to a matching cover plate through a hinge, and one side wall of the cover plate is fixedly connected to a connecting block, and the side wall of the shell is provided with a fixing component matching the connecting block."

[0004] It can be seen that the cited patent document has the problem that water and moisture can easily enter the switching power supply and cause a short circuit. Utility Model Content

[0005] The utility model aims to provide a moisture-proof switching power supply to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a moisture-proof switching power supply, comprising a shell, wherein a plurality of heat dissipation openings are equidistantly arranged on two side surfaces of the shell, threaded rods are symmetrically arranged on an inner wall of one side of the shell, and the two threaded rods are rotatably connected to the inner wall of the shell, a limit plate is fixedly arranged on the inner top surface of the shell and on one side of the two threaded rods, the two threaded rods penetrate the limit plate, and a plurality of movable plates are threadedly sleeved on the circumference of the two threaded rods, baffles for limiting the heat dissipation openings are arranged on the inner walls of both sides of the shell and on one side of each heat dissipation opening, a vertical plate is longitudinally fixedly arranged on the top surface of each baffle, a pin is rotatably connected to one side of each vertical plate, and the free end of each pin is respectively fixedly connected to the inner wall of the shell.

[0007] Preferably, each of the pin shafts is respectively arranged above each heat dissipation port, and a limiting rod is transversely fixedly arranged on one side of the two limiting plates and above the threaded rod.

[0008] Preferably, a sliding hole is provided on one side of each movable plate and located above the threaded rod, and each sliding hole is slidably matched with the limiting rod.

[0009] Preferably, a through hole for the threaded rod to pass through is provided on one side of the limiting plate and below the limiting rod, and a first bearing is provided in the inner cavity of the through hole.

[0010] Preferably, the peripheral side of the first bearing is fixed to the inner wall of the through hole, and the peripheral side of the threaded rod passes through the first bearing and is fixedly connected to the inner wall of the first bearing.

[0011] Preferably, two rotating posts are provided on the top surface of the shell through symmetrical circular grooves, and the top ends of the two rotating posts extend to the top of the shell and are fixed with rotating knobs.

[0012] Preferably, the bottom ends of the two rotating columns extend along the bottom surface of the housing, and the bottom ends of the two rotating columns and one ends of the two threaded rods are respectively fixed with bevel gears that mesh with each other.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The moisture-proof switching power supply can dissipate heat in the housing by providing a plurality of heat dissipation openings, and the provision of the baffle can limit the heat dissipation openings, thereby isolating external water or moisture.

[0015] By setting the vertical plate and the pin shaft, the baffle can make a circular motion with the pin shaft as the axis, and the setting of the threaded rod and the movable plate can push the vertical plate, so that the vertical plate drives the baffle to make a circular motion with the pin shaft as the axis, so that the baffle can be moved away from the heat dissipation port, thereby dissipating heat and isolating water or moisture, reducing the situation where water and moisture will enter the inside of the switching power supply through the heat dissipation port, and improving the service life of the switching power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the housing of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the housing and baffle of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the vertical plate and the pin shaft of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the threaded rod and the movable plate of the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1, shell; 2, heat dissipation port; 3, threaded rod; 4, limit plate; 5, movable plate; 6, limit rod; 7, baffle; 8, vertical plate; 9, pin; 10, sliding hole; 11, through hole; 12, first bearing; 13, rotating column; 14, rotating knob; 15, bevel gear; 16, second bearing. DETAILED DESCRIPTION

[0024] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0026] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0027] like Figures 1 to 5 A moisture-proof switching power supply shown includes a housing 1, which can work in a working area by the direction of screws or bolts. A plurality of heat dissipation openings 2 are equidistantly arranged on both sides of the housing 1, and the heat inside the housing 1 can be dissipated through the heat dissipation openings 2.

[0028] Threaded rods 3 are symmetrically provided on the inner wall of one side of the shell 1, and the two threaded rods 3 are rotatably connected to the inner wall of the shell 1. The two threaded rods 3 are respectively arranged in the upper half of the inner cavity of the shell 1 and close to the diagonal positions of the shell 1. A plurality of movable plates 5 are threadedly sleeved on the circumference of the two threaded rods 3. By rotating the threaded rods 3, the threaded rods 3 can drive multiple movable plates 5 to move synchronously.

[0029] The inner walls of both sides of the shell 1 and one side of each heat dissipation port 2 are provided with baffles 7 for limiting the heat dissipation port 2. The size of each baffle 7 is larger than the size of the heat dissipation port 2. The top surface of each baffle 7 is longitudinally fixed with a vertical plate 8. The top surface of each vertical plate 8 extends to one side of the lower half of the movable plate 5. One side of each vertical plate 8 is rotatably connected with a pin shaft 9. The free end of each pin shaft 9 is fixedly connected to the inner side wall of the shell 1. Each pin shaft 9 is respectively arranged above each heat dissipation port 2. By rotating the threaded rod 3, the threaded rod 3 is allowed to rotate. 3 drives the multiple movable plates 5 to move, so that the movable plates 5 can move to the top of the heat dissipation port 2 and push the vertical plates 8, so that the vertical plates 8 can rotate through the pushing of the movable plates 5, and the vertical plates 8 will rotate with the pin shaft 9 as the axis. When the vertical plates 8 rotate, the baffle plate 7 will be driven to rotate synchronously, so that the baffle plate 7 will also rotate with the pin shaft 9 as the axis, so that the vertical plates 8 and the baffle plate 7 can rotate counterclockwise, that is, the rotating baffle plate 7 can be moved away from one side of the heat dissipation port 2, and the restriction of the baffle plate 7 on the heat dissipation port 2 can be cancelled, so as to dissipate heat.

[0030] When there is water and moisture in the environment, the threaded rod 3 is rotated in the opposite direction to drive the multiple movable plates 5 to move in the opposite direction, and then each movable plate 5 can be moved in the direction away from the vertical plate 8, so that the movable plate 5 can gradually cancel the restriction on the vertical plate 8, and due to gravity, the vertical plate 8 and the baffle 7 can rotate clockwise with the pin shaft 9 as the axis, so that the baffle 7 can be rotated to one side of the heat dissipation port 2. Since the size of the baffle 7 is larger than the size of the heat dissipation port 2, the baffle 7 can restrict the heat dissipation port 2, thereby restricting water and moisture, reducing the situation where water and moisture will enter the inside of the switching power supply along the heat dissipation port 2, and improving the service life of the switching power supply.

[0031] The inner bottom surface of the shell 1 can be respectively installed with an activated carbon net, and the activated carbon net can perform secondary restriction on moisture, that is, reduce the influence of moisture on the inside of the shell 1. The activated carbon net is set according to actual conditions. If it hinders the normal use of other structures, the structure can be cancelled.

[0032] A limit plate 4 is fixedly provided on the inner top surface of the shell 1 and on one side of the two threaded rods 3, a limit rod 6 is transversely fixedly provided on one side of the two limit plates 4 and above the threaded rod 3, a sliding hole 10 is opened on one side of each movable plate 5 and above the threaded rod 3, and each sliding hole 10 is slidably adapted to the limit rod 6. When the threaded rod 3 drives multiple movable plates 5 to move, each movable plate 5 will move around the limit rod 6 through the sliding hole 10, so that the sliding hole 10 and the limit rod 6 can limit the position of the movable plate 5.

[0033] Both threaded rods 3 pass through the limit plate 4. A through hole 11 for the threaded rod 3 to pass through is provided on one side of the limit plate 4 and below the limit rod 6. A first bearing 12 is provided in the inner cavity of the through hole 11. The circumferential side of the first bearing 12 is fixed to the inner wall of the through hole 11. The circumferential side of the threaded rod 3 passes through the first bearing 12 and is fixedly connected to the inner wall of the first bearing 12. When the threaded rod 3 rotates, the threaded rod 3 will rotate in the inner cavity of the first bearing 12, so that the limit plate 4 and the first bearing 12 can support the position of the threaded rod 3 without hindering the normal rotation of the threaded rod 3.

[0034] The top surface of the shell 1 is provided with two rotating columns 13 through symmetrical circular grooves. The top ends of the two rotating columns 13 extend to the top of the shell 1 and are fixed with a knob 14. The bottom ends of the two rotating columns 13 extend to the bottom surface of the shell 1. The bottom ends of the two rotating columns 13 and one end of the two threaded rods 3 are respectively fixed with mutually meshing bevel gears 15. The staff can drive the rotating column 13 to rotate by turning the knob 14, and the rotation of the rotating column 13 will drive the bevel gear 15 to rotate, so that the bevel gear 15 drives the threaded rod 3 to rotate through another meshing bevel gear 15, so that the staff can limit the heat dissipation port 2 by turning the knob 14.

[0035] The inner walls of the two circular grooves are both equipped with second bearings 16, and the two rotating columns 13 pass through the second bearings 16 respectively and are fixedly connected to the inner walls of the second bearings 16, so that the second bearings 16 can limit the position of the rotating column 13 without hindering the normal rotation of the rotating column 13.

[0036] Working principle:

[0037] The moisture-proof switching power supply works after the housing 1 is installed in the working area, and the heat dissipated during the working process is discharged through multiple heat dissipation ports 2. When there is water or moisture in the working environment, the knob 14 is turned to drive the bevel gear 15 to rotate through the rotating column 13, and the bevel gear 15 drives the threaded rod 3 to rotate through another meshing bevel gear 15, so that the threaded rod 3 can drive multiple movable plates 5 to move synchronously. The movable plate 5 in the initial state is against the vertical plate 8 and restricts it, and after the movable plate 5 moves, the restriction on the vertical plate 8 is gradually cancelled, so that the vertical plate 8 drives the baffle 7 to make a circular motion with the pin shaft 9 as the axis, so that the baffle 7 can move to the heat dissipation port 2 due to gravity. On one side, the baffle 7 can limit the heat dissipation port 2, reducing water and moisture from entering the housing 1 through the heat dissipation port 2. Conversely, when heat dissipation is needed, the knob 14 is rotated in the opposite direction, and the threaded rod 3 can be driven to rotate in the opposite direction through the two bevel gears 15, so that the movable plate 5 moves in the opposite direction and presses against one side of the vertical plate 8, and continues to move, so that the movable plate 5 pushes the vertical plate 8, so that the vertical plate 8 can drive the baffle 7 to move, and the baffle 7 can make a circular motion with the pin shaft 9 as the axis, so that the baffle 7 can rotate to one side of the heat dissipation port 2, thereby canceling the restriction of the baffle 7 on the heat dissipation port 2, and heat dissipation can be performed, thereby reducing the situation where water and moisture will enter the inside of the switching power supply along the heat dissipation port 2, and improving the service life of the switching power supply.

[0038] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof switching power supply, comprising a housing (1), characterized in that: A plurality of heat dissipation openings (2) are equidistantly arranged on both side surfaces of the shell (1); threaded rods (3) are symmetrically arranged on the inner wall of one side of the shell (1); the two threaded rods (3) are rotatably connected to the inner wall of the shell (1); a limiting plate (4) is fixedly arranged on the inner top surface of the shell (1) and located on one side of the two threaded rods (3); the two threaded rods (3) penetrate the limiting plate (4); a plurality of movable plates (5) are threadedly sleeved on the circumference of the two threaded rods (3); baffles (7) for limiting the heat dissipation openings (2) are provided on the inner walls of both sides of the shell (1) and located on one side of each heat dissipation opening (2); a vertical plate (8) is longitudinally fixedly arranged on the top surface of each baffle (7); a pin shaft (9) is rotatably connected to one side of each vertical plate (8); and the free end of each pin shaft (9) is respectively fixedly connected to the inner wall of the shell (1).

2. A moisture-proof switching power supply according to claim 1, characterized in that: Each of the pin shafts (9) is respectively arranged above each heat dissipation opening (2), and a limiting rod (6) is transversely fixedly arranged on one side of the two limiting plates (4) and located above the threaded rod (3).

3. A moisture-proof switching power supply according to claim 2, characterized in that: A sliding hole (10) is provided on one side of each movable plate (5) and located above the threaded rod (3), and each sliding hole (10) is slidably matched with the limiting rod (6).

4. A moisture-proof switching power supply according to claim 2, characterized in that: A through hole (11) for the threaded rod (3) to pass through is provided on one side of the limiting plate (4) and below the limiting rod (6), and a first bearing (12) is provided in the inner cavity of the through hole (11).

5. A moisture-proof switching power supply according to claim 4, characterized in that: The peripheral side of the first bearing (12) is fixed to the inner wall of the through hole (11), and the peripheral side of the threaded rod (3) passes through the first bearing (12) and is fixedly connected to the inner wall of the first bearing (12).

6. The moisture-proof switching power supply according to claim 1, characterized in that: Two rotating posts (13) are provided on the top surface of the housing (1) via symmetrical circular grooves, and the top ends of the two rotating posts (13) extend to the top of the housing (1) and are fixedly provided with rotating knobs (14).

7. A moisture-proof switching power supply according to claim 6, characterized in that: The bottom ends of the two rotating columns (13) extend along the bottom surface of the housing (1), and mutually meshing bevel gears (15) are respectively fixedly disposed on the bottom ends of the two rotating columns (13) and one end of the two threaded rods (3).

Images