Ventilation mechanism for direct-current power supply case

Abstract

The ventilation mechanism is applied to the technical field of air guide channels and comprises an air channel upper plate, the bottom of the air channel upper plate is connected with an air channel lower plate in a sliding mode, and a sliding groove is formed in one side of the air channel upper plate. The side, close to the sliding groove, of the air duct lower plate is fixedly connected with a threaded insertion hole which penetrates through the sliding groove and is in sliding connection with the sliding groove. The air duct upper plate slides up and down on the top of the air duct lower plate for adjustment, and the height of the air duct upper plate is fixed and limited through threaded meshing friction force of the threaded insertion hole and the limiting bolt. Therefore, the height of the air channel can be adjusted to be attached to fan outer frames of different sizes, air dissipation is prevented, and the heat dissipation efficiency is guaranteed. Water drops dripping on the air duct are guided into the flow guide groove through the wave grooves and the inclined grooves. And meanwhile, water is discharged out of the air duct through the flow guide grooves, so that components in the air duct are prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of air guide channels, and particularly relates to a ventilation mechanism for a DC power supply chassis. Background Art

[0002] Ordinary air ducts use PET sheets with a thickness of 0.2 - 0.5 mm. The inside of the air duct is a high-temperature and high-speed air flow. The heat-generating components are cooled by the strong wind generated by the air flow.

[0003] Currently, the Chinese utility model with the publication number CN218679743U discloses a chassis air guide cover, belonging to the technical field of air guide covers; the chassis air guide cover includes: an air guide pipe and a filter pipe; the air guide pipe is a hollow cavity, one end of the air guide pipe is provided with a first air outlet, and the other end of the air guide pipe is provided with a second air outlet; a filter plate is arranged inside the filter pipe, both ends of the filter pipe are in a stepped shape, and any end of the filter pipe is embedded into the first air outlet of the air guide pipe. By enabling both ends of the filter pipe to be embedded into the second air outlet of the air guide pipe, it is realized that both ends of the filter pipe can be connected to the air guide pipe, so as to ensure that when the fan realizes different functions (exhaust or suction), by swapping the connection ends of the filter pipe, it is ensured that the filter plate and the air flow direction are both at a predetermined angle (acute angle). Furthermore, when the filter plate filters impurities in the air, the impurities fall from the filter plate due to gravity, so as to avoid excessive impurities being adsorbed on the filter plate and improve the use experience of the product.

[0004] Since the component groups inside the DC power supply chassis are stacked in multiple layers and connected in parallel, the height required for the air duct becomes higher, but the width remains unchanged. This causes the height-width ratio of the PET air duct to increase. When the height of the air duct increases, it cannot fit well with the fan outer frame, resulting in most of the air volume escaping and reducing the heat dissipation efficiency. And when water droplets drip on the top of the air duct, it is difficult to guide them out in time. The water droplets will accumulate on the air duct and scatter and drip, and the dripping position is also uncontrollable, which easily damages the components inside the air duct and increases the short-circuit risk of the DC power supply chassis. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a ventilation mechanism for a DC power supply chassis, and its advantage is that it can adjust the height of the air duct to fit the fan outer frame and facilitate the function of timely guiding and controlling the water droplets dripping on the air duct to the outside of the air duct.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a ventilation mechanism for a DC power supply chassis includes an upper air duct plate. A lower air duct plate is slidably connected to the bottom of the upper air duct plate. A chute is opened on one side of the upper air duct plate. A threaded jack that is fixedly connected to the lower air duct plate near the chute and slidably connected through the chute is provided. A limit bolt that is threadedly connected to the inside of the threaded jack and clamped to the upper air duct plate is provided.

[0007] With the above technical solution, the upper plate of the air duct slides up and down at the top of the lower plate of the air duct, and the height of the upper plate of the air duct is fixed and limited by the frictional force of the threaded engagement between the threaded jack and the limit bolt. Thus, the height of the air duct can be adjusted to fit the outer frames of various sizes of fans, preventing the escape of air volume and ensuring the heat dissipation efficiency. By using the wave grooves and inclined grooves, the water droplets falling on the air duct are guided into the internal of the diversion groove. At the same time, the water is discharged to the outside of the air duct by the diversion groove, thereby preventing damage to the components inside the air duct. At the same time, a water storage structure can also be installed at the water outlet of the diversion groove to store the guided water for convenient subsequent treatment.

[0008] The present utility model is further configured as: a duct cover plate is provided on the top of the lower plate of the air duct, a flat end and an inclined end are respectively provided on the top of the duct cover plate, a wave groove is opened on the flat end of the top of the duct cover plate, an inclined groove communicating with the wave groove is opened on the inclined end of the top of the duct cover plate, a connecting plate fixedly connected with the duct cover plate is provided on one side away from the wave groove of the inclined groove, and a diversion groove communicating with the inclined groove is opened on one side of the top of the connecting plate.

[0009] With the above technical solution, it is convenient to timely guide and control the flow direction of the water droplets dripping on the air duct to the outside of the air duct, preventing damage to the components inside the air duct.

[0010] The present utility model is further configured as: buckles that are symmetrically welded to both sides of the top of the upper plate of the air duct and are clamped with the inclined ends of the top of the duct cover plate are provided.

[0011] With the above technical solution, by using a simple folding and clamping method, it can be simply folded into shape without using glue, reducing the installation cost.

[0012] The present utility model is further configured as: a folding plate is fixedly connected to one side of the upper plate of the air duct away from the connecting plate.

[0013] With the above technical solution, the overall structural strength is increased, effectively preventing deformation.

[0014] The present utility model is further configured as: mounting plates are welded to both sides of the bottom of the lower plate of the air duct.

[0015] With the above technical solution, the mounting plates can be fixed to the bottom of the chassis by bolting or bonding, thereby installing the upper plate and the lower plate of the air duct inside the chassis.

[0016] The present utility model is further configured as: limit clamping plates that are welded to both sides of the lower plate of the air duct and are slidably connected to both sides of the upper plate of the air duct are provided.

[0017] With the above technical solution, the limit clamping plate is attached to both sides of the upper plate of the air duct to limit the sliding, thereby improving the stability of the up-and-down sliding of the upper plate of the air duct.

[0018] The present utility model is further configured such that corrosion-resistant coatings are applied to the tops of the air duct cover plate and the connecting plate.

[0019] With the above technical solution, the risk of rusting after guiding and draining water is reduced, and the service life is increased.

[0020] In summary, the present utility model has the following beneficial effects:

[0021] 1. By sliding the upper plate of the air duct up and down on the top of the lower plate of the air duct and using the frictional force of the threaded engagement between the threaded jack holes and the limit bolts to fix and limit the height of the upper plate of the air duct. Thus, the height of the air duct can be adjusted to fit the outer frames of various sizes of fans, preventing the escape of air volume and ensuring the heat dissipation efficiency;

[0022] 2. By using the wave grooves and the inclined grooves to guide the water droplets falling on the air duct into the inside of the diversion groove. At the same time, the diversion groove discharges the water outside the air duct, thereby preventing damage to the components inside the air duct. Also, a water storage structure can be installed at the water outlet of the diversion groove to store the guided water for convenient subsequent treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a partial structural cross-sectional view of the present utility model;

[0025] Figure 3 is the present utility model Figure 1 enlarged view of point A in.

[0026] Reference numerals: 1, upper plate of the air duct; 2, lower plate of the air duct; 3, sliding groove; 4, threaded jack hole; 5, limit bolt; 6, air duct cover plate; 7, wave groove; 8, inclined groove; 9, connecting plate; 10, diversion groove; 11, buckle; 12, folding plate; 13, mounting plate; 14, limit clamping plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following further describes the present utility model in detail with reference to the drawings.

[0028] Embodiment 1:

[0029] Refer to Figure 1 , Figure 3, a ventilation mechanism for a DC power supply chassis, including an upper air duct plate 1. The bottom of the upper air duct plate 1 is slidably connected to a lower air duct plate 2. One side of the upper air duct plate 1 is provided with a chute 3. One side of the lower air duct plate 2 close to the chute 3 is fixedly connected with a threaded jack 4 that penetrates and slidably connects with the chute 3. A limit bolt 5 that is clamped with the upper air duct plate 1 is threadedly connected inside the threaded jack 4. The height of the upper air duct plate 1 is fixed and limited by sliding the upper air duct plate 1 up and down on the top of the lower air duct plate 2 and using the frictional force of the threaded engagement between the threaded jack 4 and the limit bolt 5. Thus, the height of the air duct can be adjusted to fit the outer frames of various sizes of fans, preventing the escape of air volume and ensuring the heat dissipation efficiency.

[0030] Reference Figure 1 , mounting plates 13 are welded on both sides of the bottom of the lower air duct plate 2. The mounting plates 13 can be fixed to the bottom of the chassis by bolting or bonding, so as to install the upper air duct plate 1 and the lower air duct plate 2 inside the chassis.

[0031] Reference Figure 1 , limit clamping plates 14 that are slidably connected to both sides of the upper air duct plate 1 are welded on both sides of the lower air duct plate 2. The sliding is limited by the fitting of the limit clamping plates 14 with both sides of the upper air duct plate 1, thereby improving the stability of the up and down sliding of the upper air duct plate 1.

[0032] Brief description of the usage process: By pulling the upper air duct plate 1 to slide upward on both sides of the lower air duct plate 2, the opening height on one side of the upper air duct plate 1 and the lower air duct plate 2 can be fitted to the surface of the fan outer frame. Then, turn the limit bolt 5 to engage it with the threaded jack 4 in a threaded manner, so that the limit bolt 5 slides into the threaded jack 4 and fits with the outer side of the upper air duct plate 1, and the height of the upper air duct plate 1 can be fixed by using the frictional force. At the same time, when the height of the upper air duct plate 1 needs to be adjusted again, only the limit bolt 5 needs to be rotated in the reverse direction to be disengaged from the upper air duct plate 1.

[0033] Embodiment 2:

[0034] Reference Figure 1 、 Figure 2, a ventilation mechanism for a DC power supply chassis. A duct cover plate 6 is provided on the top of the duct bottom plate 2. The top of the duct cover plate 6 is respectively provided with a flat end and an inclined end. A wavy groove 7 is formed in the flat end at the top of the duct cover plate 6, and an inclined groove 8 communicating with the wavy groove 7 is formed in the inclined end at the top of the duct cover plate 6. A connecting plate 9 fixedly connected to the duct cover plate 6 is provided on one side of the inclined groove 8 away from the wavy groove 7. A diversion groove 10 communicating with the inclined groove 8 is formed on one side of the top of the connecting plate 9. By utilizing the wavy groove 7 and the inclined groove 8, the water droplets falling on the duct are guided into the interior of the diversion groove 10. At the same time, the water is discharged to the outside of the duct by the diversion groove 10, thereby preventing damage to the components inside the duct. At the same time, a water storage structure can also be installed at the water outlet of the diversion groove 10 to store the guided water for convenient subsequent treatment.

[0035] Reference Figure 1 , on both sides of the top of the duct upper plate 1, buckles 11 that are symmetrically welded and clamped with the inclined end at the top of the duct cover plate 6 are provided. By using a simple folding and clamping method, it can be simply folded into shape without using glue, reducing the installation cost.

[0036] Reference Figure 1 , a folding plate 12 is fixedly connected to one side of the duct upper plate 1 away from the connecting plate 9. It increases the overall structural strength and effectively prevents deformation.

[0037] Reference Figure 1 , corrosion-resistant coatings are applied to the tops of the duct cover plate 6 and the connecting plate 9. It reduces the risk of corrosion after guiding water and improves the service life.

[0038] Brief description of the usage process: By respectively setting the two sides of the top of the duct cover plate 6 as a flat end and an inclined end, the flat end has a larger internal space compared to the inclined end and can be used to install components in multiple layers and stacked in parallel, and the inclined end is used to fit with the fan outer frame. When water droplets fall on the duct cover plate 6 inside the chassis, the wavy groove 7 enables the water droplets to slide into the recesses of the wavy groove 7. Then, the water droplets inside the recesses of the wavy groove 7 are guided through the inclined groove 8, so that the water droplets can slide down by gravity into the interior of the diversion groove 10, and finally, the water slides out from one side of the connecting plate 9 to the outside of the duct through the diversion groove 10, thereby preventing damage to the components inside the duct. At the same time, a water storage structure can also be installed at the water outlet of the diversion groove 10 to store the guided water for convenient subsequent treatment.

[0039] This specific embodiment is only an explanation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A ventilation mechanism for a DC power supply chassis, comprising an air duct upper plate (1), characterized in that: The bottom of the air duct upper plate (1) is slidably connected to the air duct lower plate (2), a sliding groove (3) is opened on one side of the air duct upper plate (1), and a threaded plug hole (4) that is slidably connected to the sliding groove (3) is fixedly connected to the side of the air duct lower plate (2) close to the sliding groove (3), and the internal thread of the threaded plug hole (4) is connected to a limiting bolt (5) that is clamped to the air duct upper plate (1).

2. A ventilation mechanism for a DC power supply chassis according to claim 1, characterized in that: An air duct cover plate (6) is arranged on the top of the air duct lower plate (2), and the top of the air duct cover plate (6) is respectively provided with a plane end and a slope end, the plane end of the top of the air duct cover plate (6) is provided with a wave groove (7), the slope end of the top of the air duct cover plate (6) is provided with an inclined groove (8) connected to the wave groove (7), a connecting plate (9) fixedly connected to the air duct cover plate (6) is arranged on the side of the inclined groove (8) away from the wave groove (7), and a guide groove (10) connected to the inclined groove (8) is provided on one side of the top of the connecting plate (9).

3. A ventilation mechanism for a DC power supply chassis according to claim 2, characterized in that: Buckles (11) are symmetrically welded on both sides of the top of the air duct upper plate (1) and are engaged with the top inclined end of the air duct cover plate (6).

4. A ventilation mechanism for a DC power supply chassis according to claim 2, characterized in that: A folded plate (12) is fixedly connected to the side of the air duct upper plate (1) away from the connecting plate (9).

5. A ventilation mechanism for a DC power supply chassis according to claim 1, characterized in that: Mounting plates (13) are welded to both sides of the bottom of the air duct lower plate (2).

6. A ventilation mechanism for a DC power supply chassis according to claim 1, characterized in that: Limiting clamping plates (14) are welded on both sides of the air duct lower plate (2) and are slidably connected to both sides of the air duct upper plate (1).

7. A ventilation mechanism for a DC power supply chassis according to claim 2, characterized in that: The tops of the air duct cover plate (6) and the connecting plate (9) are both coated with a rust-resistant coating.

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