Drainage structure, cabinet and electrical equipment
By designing a drainage structure and utilizing drainage pipes and wind resistance structures, the problem of rainwater being difficult to drain from the ventilation ducts of outdoor cabinets was solved, and the accumulated water was discharged in a timely manner, thus protecting the safety of electronic components in the cabinets.
Patent Information
- Application Number
- CN202422069305.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, rainwater in the ventilation duct of an outdoor cabinet is difficult to drain in time, especially in a negative pressure area, which affects the heat dissipation and corrosion protection of electronic devices.
A drainage structure is designed, including a drainage pipe and a water collection structure. The drainage outlet of the drainage pipe is lower than the water inlet and extends in different directions. It is combined with a wind resistance structure to reduce the impact of negative pressure. The gravity and wind resistance structure design are used to ensure that the accumulated water is discharged smoothly.
Effectively drain the accumulated water in the ventilation duct, protect electronic components from corrosion, and improve the safety and reliability of equipment in the cabinet.
Smart Images
Figure CN223390961U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of outdoor equipment, and more specifically, to a drainage structure, a cabinet, and electrical equipment. Background Art
[0002] Outdoor cabinets typically have ventilation ducts, which use fans to draw in outside air. This airflow directly or indirectly removes heat generated by the electronic components before being discharged through the air outlet. Rainwater can enter these ducts along with the airflow. If not promptly drained, this water can adversely affect the components within the cabinet. Therefore, a drainage structure is urgently needed to remove this water. Utility Model Content
[0003] In view of this, the present application provides a drainage structure so that rainwater in the ventilation duct can be drained away in a timely manner.
[0004] The present application also provides a cabinet and electrical equipment including the above-mentioned drainage structure.
[0005] To achieve the above objectives, this application provides the following technical solutions:
[0006] A drainage structure is applied to a cabinet, wherein the cabinet is provided with a ventilation duct, the ventilation duct has an air inlet, and the air inlet direction of the air inlet is a first direction. The drainage structure includes:
[0007] A drainage pipe, the drainage pipe includes a water inlet and a drain outlet, the horizontal height of the drain outlet is lower than the horizontal height of the water inlet, the water inlet is connected to the ventilation duct, and the drain outlet extends along a second direction away from the air inlet, and the first direction and the second direction are not parallel to each other.
[0008] In one embodiment of the present application, the drainage structure further includes a water collecting structure, and the water inlet of the drainage pipe is connected to the ventilation duct through the water collecting structure.
[0009] In one embodiment of the present application, the water collection structure is a water collection trough, and the lowest point of the ventilation duct is connected to the water collection trough.
[0010] In one embodiment of the present application, the drainage pipe is provided with a wind resistance structure, and the wind resistance structure is used to increase the resistance of the incoming air along the direction from the drainage port to the water inlet of the drainage pipe.
[0011] In one embodiment of the present application, the wind resistance structure includes at least one of an arc-shaped pipe segment, a broken-line pipe segment, and a spiral pipe segment.
[0012] In one embodiment of the present application, the wind resistance structure includes a guide plate arranged in the drainage pipe, and a plurality of the guide plates are staggered and alternately arranged on both sides of the drainage pipe in the direction from the water inlet to the drainage outlet and spaced apart from each other, and the guide plates on both sides of the drainage pipe partially overlap in the direction from the water inlet to the drainage outlet.
[0013] In one embodiment of the present application, one end of the guide plates on both sides of the drainage pipe that partially overlaps is inclined in a direction away from the water inlet.
[0014] In one embodiment of the present application, the drainage pipe includes a first pipe section and a second pipe section connected to each other, the cross-sectional area of the first pipe section is larger than the cross-sectional area of the second pipe section, the end of the first pipe section away from the second pipe section is constructed as one of the water inlet and the drain outlet, the end of the second pipe section away from the first pipe section is constructed as the other of the water inlet and the drain outlet, and the guide plate is arranged in the first pipe section.
[0015] In one embodiment of the present application, a projection of the guide plate closest to the second pipe segment on the plane where the connection port between the first pipe segment and the second pipe segment is located covers the connection port.
[0016] In one embodiment of the present application, the wind resistance structure includes a main flow channel and a secondary flow channel, the two ends of the main flow channel are respectively connected to the drain outlet and the water inlet of the drainage pipe, the two ends of the secondary flow channel are respectively connected to the main flow channel, and both ends of the secondary flow channel are inclined away from the water inlet of the drainage pipe.
[0017] In one embodiment of the present application, the wind resistance structure includes a plurality of the secondary flow channels, and the secondary flow channels are alternately staggeredly arranged on both sides of the main flow channel along the direction from the water inlet to the drain outlet of the drainage pipe.
[0018] In one embodiment of the present application, the main flow channel includes multiple segmented flow channels, each of the segmented flow channels is connected in sequence along the direction from the water inlet to the drain outlet of the drainage pipe, two adjacent segmented flow channels are arranged at an angle, and the secondary flow channel is arranged on one side of at least one segmented flow channel.
[0019] In one embodiment of the present application, along the direction from the water inlet to the drain outlet of the drainage pipe, the upstream segmented flow channel of the two adjacent segmented flow channels is the upstream segmented flow channel, and the downstream segmented flow channel is the downstream segmented flow channel. The secondary flow channel includes an arc flow channel and a straight flow channel connected to each other, and the straight flow channel is connected to the downstream segmented flow channel through an end of the upstream segmented flow channel close to the drain outlet, and the straight flow channel and the downstream segmented flow channel extend in the same direction, and the arc flow channel is connected to an end of the upstream segmented flow channel away from the downstream segmented flow channel.
[0020] A cabinet is provided with a ventilation duct and also includes a drainage structure as described in any one of the above items.
[0021] In one embodiment of the present application, a first cavity independent of the ventilation duct is provided in the cabinet, and the drainage structure is provided in the first cavity.
[0022] In one embodiment of the present application, the ventilation duct includes:
[0023] a second cavity, the second cavity being arranged at the top of the cabinet, and an air inlet of the ventilation duct being arranged at one end of the second cavity;
[0024] The third cavity is connected to the second cavity, the third cavity and the first cavity are both located below the second cavity, and the first cavity is close to the air inlet relative to the third cavity, and the air outlet of the ventilation duct is arranged at one end of the third cavity away from the second cavity.
[0025] Compared with the background technology introduction, the present application provides a drainage structure applied to a cabinet, which is provided with a ventilation duct, the ventilation duct has an air inlet, the air inlet direction of the air inlet is a first direction, the drainage structure includes a drainage pipe, the drainage pipe includes a water inlet and a drain, the horizontal height of the drain is lower than the horizontal height of the water inlet, the horizontal height is the height from the ground, the water inlet is connected to the ventilation duct, and the drain extends along the second direction away from the air inlet, and the first direction and the second direction are not parallel to each other.
[0026] The drain outlet of the drainage pipe of the above-mentioned drainage structure is lower than the water inlet, and the drain outlet extends in a direction away from the water inlet along a second direction set at an angle to the air inlet direction of the air inlet, thereby increasing the distance between the drain outlet and the air inlet and making the two face different directions, so that the negative pressure in the ventilation duct reduces the effect of the negative pressure in the drainage pipe, and the accumulated water in the ventilation duct is more easily discharged along the drainage pipe under the action of its own gravity, so that the above-mentioned drainage structure can smoothly discharge the accumulated water in the negative pressure area of the duct. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0028] Figure 1 Schematic diagram of the internal structure of a cabinet in the prior art;
[0029] Figure 2 A schematic diagram of the internal structure of a cabinet provided in an embodiment of the present application;
[0030] Figure 3 A front view of the internal structure of a cabinet provided in an embodiment of the present application;
[0031] Figure 4 An axonometric diagram of a drainage structure provided in an embodiment of the present application;
[0032] Figure 5 A front view of a drainage structure provided in an embodiment of the present application;
[0033] Figure 6 A top view of a drainage structure provided in an embodiment of the present application;
[0034] Figure 7 An axonometric diagram of another drainage structure provided in an embodiment of the present application;
[0035] Figure 8 A top view of another drainage structure provided in an embodiment of the present application;
[0036] Figure 9 A schematic diagram of another internal structure of a cabinet provided in an embodiment of the present application;
[0037] Figure 10 An axonometric diagram of another drainage structure provided in an embodiment of the present application;
[0038] Figure 11 A front view of another drainage structure provided in an embodiment of the present application;
[0039] Figure 12 A top view of another drainage structure provided in an embodiment of the present application;
[0040] Figure 13 A schematic diagram of another internal structure of a cabinet provided in an embodiment of the present application;
[0041] Figure 14 A front view of another internal structure of the cabinet provided in an embodiment of the present application;
[0042] Figure 15A and Figure 15B A schematic diagram comparing the drainage and air intake states of another drainage structure provided in an embodiment of the present application;
[0043] Figure 16 A schematic diagram of another internal structure of a cabinet provided in an embodiment of the present application;
[0044] Figure 17 A front view of another internal structure of the cabinet provided in an embodiment of the present application;
[0045] Figure 18 This is an exploded view of another drainage structure provided in an embodiment of the present application.
[0046] in, Figures 1-18 middle:
[0047] 1 is a cabinet; 1-1 is a ventilation duct; 1-1-1 is the second cavity; 1-1-2 is the third cavity; 1-2 is the air inlet; 1-3 is the air outlet; 1-4 is the first cavity; 2 is a fan; 3 is a drainage structure; 3-1 is a drainage pipe; 3-1-1 is the first pipe section; 3-1-2 is the second pipe section; 3-2 is a water collecting trough; 3-3 is an arc-shaped pipe section; 3-4 is a guide vane; 3-5 is the main flow channel; 3-6 is the secondary flow channel; 3-7 is the pipe body; 3-8 is the pipe cover. DETAILED DESCRIPTION
[0048] One of the core aspects of this application is to provide a drainage structure so that rainwater in the ventilation duct can be drained away in a timely manner.
[0049] Another core of the present application is to provide a cabinet and electrical equipment including the above-mentioned drainage structure.
[0050] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0051] Based on the actual use of outdoor cabinets, rainwater may enter the ventilation duct along with the airflow. If this rainwater is not drained away in time, it will have an adverse effect on the relevant components within the cabinet. This rainwater will especially affect the corrosion protection of the electronic components in the ventilation duct or the fins of the electronic components' heat sinks. Of course, this rainwater will not only have an adverse effect on the electronic components in the ventilation duct, but also on other related components that need to be protected from water. Therefore, it is necessary to design a drainage structure to drain the ventilation duct.
[0052] Reference Figure 1 The figure shows a schematic diagram of the internal structure of a cabinet in the prior art. In this technical solution, a drainage hole is provided at the air inlet 1-2 of the ventilation duct 1-1, where water is likely to accumulate. The design concept is that when rainwater enters through the air inlet 1-2 and accumulates near the air inlet 1-2, the accumulated water can be discharged through the drainage hole. However, in actual operation, when the fan 2 is operating, the cavity where the air inlet side of the fan 2 is located (i.e., the second cavity 1-1-1 in the figure) is in a negative pressure area, that is, the air inlet 1-2 and the drainage hole are both in a negative pressure area. Under the action of negative pressure, this will create resistance to drainage through the drainage hole, making it difficult to drain water, or even impossible to drain water.
[0053] Based on this, the present application provides a new drainage structure 3 so that the rainwater in the ventilation duct 1-1 can be drained away in time, avoiding the problem of difficulty in drainage or even inability to drain water under the action of negative pressure.
[0054] Specifically, refer to Figure 2 and Figure 3 The drainage structure 3 provided in this application is applied to a cabinet 1. The cabinet 1 is mainly used for outdoor electrical equipment with active ventilation capabilities. Of course, it is not limited to outdoor cabinets 1, and can also be applied to indoor cabinets 1 with drainage requirements. The cabinet 1 is provided with a ventilation duct 1-1, and the ventilation duct 1-1 has an air inlet 1-2. The air inlet direction of the air inlet 1-2 is a first direction. Based on this, the drainage structure 3 includes a drainage pipe 3-1, and the drainage pipe 3-1 includes a water inlet and a drain. The water inlet is used to allow the accumulated water in the ventilation duct 1-1 to flow into the drain pipe Channel 3-1, the drain outlet is used to discharge the accumulated water out of the drainage pipe 3-1 and then out of the cabinet 1. The horizontal height of the drain outlet is lower than the horizontal height of the water inlet, and the horizontal height is the height from the ground, thereby forming a step difference between the water inlet and the drain outlet. The water inlet is connected to the ventilation duct 1-1, and the drain outlet extends along the second direction away from the air inlet 1-2. The first direction and the second direction are two non-parallel directions. It should be noted that the first direction and the second direction can be two directions at an angle to each other in the same plane, or two directions in different planes.
[0055] The cross-sectional shape of the drainage pipe 3-1 includes but is not limited to circular, elliptical, polygonal and irregular shapes. Figures 4 to 6 In the embodiment shown, the cross-section of the drainage pipe 3-1 is rectangular. Figure 7 and Figure 8 In the embodiment shown, the cross-sectional shape of the drainage pipe 3-1 is circular. Of course, these two shapes are merely two specific implementation plans provided in this application and are not actually limited to these two shapes. In addition, along the direction from the water inlet to the drain outlet of the drainage pipe 3-1, the cross-sectional shape of the drainage pipe 3-1 can remain consistent or inconsistent. For example, in order to avoid other equipment in the cabinet 1, the cross-sectional shape of the drainage pipe 3-1 can be changed.
[0056] The overall shape of the drainage pipe 3-1 can be designed according to the internal layout of the cabinet 1. It should be noted that no matter how the drainage pipe 3-1 extends, it is necessary to ensure that the drainage pipe 3-1 is a gradually lowered structure along the direction from the water inlet to the drain outlet of the drainage pipe 3-1 to ensure smooth drainage. Figure 2 and Figure 3 As shown, in this embodiment, the drainage pipe 3-1 extends in a straight line from top to bottom. Of course, the drainage pipe 3-1 may not extend in a straight line. In other embodiments, the drainage pipe 3-1 may be an arc-shaped structure, a wavy structure or a spiral structure, or a combination of the above multiple structures.
[0057] An equal-diameter structure can be adopted from the water inlet to the drain outlet of the drainage pipe 3-1, that is, the diameter of the drainage pipe 3-1 always remains consistent along the direction from the water inlet to the drain outlet. Of course, an unequal-diameter structure can also be adopted, that is, the diameter of the drainage pipe 3-1 can be changed as needed along the direction from the water inlet to the drain outlet. For example, in order to avoid other equipment in the cabinet 1, the diameter of the drainage pipe 3-1 can be reduced.
[0058] It can be seen that compared with the existing drainage structure 3, the drainage structure 3 provided in the present application has a drainage outlet of the drainage pipe 3-1 that is lower than the water inlet position, and the drainage outlet extends in a second direction that is set at an angle to the air inlet direction of the air inlet 1-2 toward the direction away from the water inlet, thereby increasing the distance between the drainage outlet and the air inlet 1-2 and making the two face different directions, so that the negative pressure in the ventilation duct 1-1 reduces the effect of the negative pressure in the drainage pipe 3-1, and the accumulated water in the ventilation duct 1-1 is more easily discharged along the drainage pipe 3-1 under the action of its own gravity, so that the above-mentioned drainage structure 3 can smoothly discharge the accumulated water in the negative pressure area of the duct.
[0059] In order to increase the drainage efficiency and reduce the water accumulation in the ventilation duct 1-1, a water accumulation structure should be set to collect the accumulated water to the location of the drainage structure 3. That is, in the embodiment of the present application, the drainage structure 3 also includes a water collection structure. The water inlet of the drainage pipe 3-1 is connected to the ventilation duct 1-1 through the water collection structure. The water collection structure can be formed by the inner bottom of the ventilation duct 1-1 being concave downward, and the drainage structure 3 is connected to the lowest point of the concave of the ventilation duct 1-1. Alternatively, the water collection structure is a water collection trough 3-2, and the ventilation duct 1-1 is connected to the water collection trough 3-2. One or more water tanks 3-2 can be set, and the size of the connection point between the water collecting tank 3-2 and the ventilation duct 1-1 can be determined according to the environment in which the cabinet 1 is located. The water collecting tank 3-2 can extend along the width direction of the ventilation duct 1-1 until the width direction of the ventilation duct 1-1 is fully covered with the ventilation duct 1-1, or it can extend along the length direction of the ventilation duct 1-1 until the length direction of the ventilation duct 1-1 is fully covered with the ventilation duct 1-1, or the above two schemes can be combined, that is, the water collecting tank 3-2 is set at the lowest point of the depression of the ventilation duct 1-1.
[0060] like Figures 4 to 6 As shown, in one embodiment of the present application, the cross-section of the water collecting tank 3-2 is rectangular. Of course, the cross-sectional shape of the water collecting tank 3-2 is not limited to the shape shown in the figure. In other embodiments, the cross-sectional shape of the water collecting tank 3-2 includes but is not limited to circular, elliptical, irregular, etc.
[0061] In order to improve the drainage effect, the inner bottom of the water collecting tank 3-2 can also be set to a downward concave shape, and the drainage pipe 3-1 is connected to the lowest point of the water collecting tank 3-2.
[0062] Although the first direction and the second direction are two non-parallel directions, they can reduce the impact of negative pressure on drainage to a certain extent. However, under the action of negative pressure in the ventilation duct 1-1, the drainage pipe 3-1 will inevitably form an incoming wind in the opposite direction of drainage. In order to reduce the impact of the incoming wind on drainage, the drainage pipe 3-1 is provided with a wind resistance structure, which is used to increase the resistance of the incoming wind along the direction from the drain port to the water inlet of the drainage pipe 3-1. Of course, it should be noted that the drainage pipe 3-1 can form a wind resistance structure only in a part, or the wind resistance structure can be formed in the entire drainage pipe 3-1, which is not limited here.
[0063] In a specific feasible solution, the wind resistance structure includes at least one of the arc-shaped pipe segment 3-3, the broken-line pipe segment and the spiral pipe segment. The curved pipe shape is used to force the incoming wind from the drain outlet to the water inlet to collide and change direction multiple times, thereby reducing the kinetic energy of the incoming wind, increasing the resistance of the incoming wind, and reducing the incoming air flow velocity, which is more conducive to drainage.
[0064] Specific as Figures 9 to 12As shown, in a specific embodiment of the present application, the wind resistance structure includes a plurality of arc-shaped pipe segments 3-3, and the plurality of arc-shaped pipe segments 3-3 are smoothly connected in sequence. It should be noted that the central angle of the arc-shaped pipe segment 3-3 should be less than 180°, so as to increase the air intake effect without causing adverse effects on drainage.
[0065] See also Figure 13 and Figure 14 In another embodiment of the present application, the wind resistance structure includes a guide plate 3-4 provided in the drainage pipe 3-1. A plurality of guide plates 3-4 are staggered and alternately arranged on both sides of the drainage pipe 3-1 in the direction from the water inlet to the drain outlet. The guide plates 3-4 on both sides of the drainage pipe 3-1 partially overlap in the direction from the water inlet to the drain outlet. Under the action of its own gravity, the accumulated water can be discharged along the tortuous channel between the guide plates 3-4. Figure 15A As shown, the incoming air flow will hit the guide vanes 3-4 and change direction under the action of the guide vanes 3-4, and a tortuous channel is formed between the multiple guide vanes 3-4, which can force the incoming air flow to change direction multiple times, such as Figure 15B As shown, the air intake resistance is increased, the air intake speed is reduced, and the impact of the air intake on drainage is reduced.
[0066] like Figure 13 、 Figure 14 as well as Figure 15A As shown, the partially overlapping ends of the guide plates 3-4 on both sides of the drainage pipe 3-1 are tilted away from the water inlet. By tilting the guide plates 3-4, the accumulated water can be easily discharged, and the angle of the incoming air direction can be increased, further increasing the incoming air resistance.
[0067] To facilitate the setting of the guide plate 3-4, as shown in FIG. Figure 13 and Figure 14 As shown, in the embodiment of the present application, the drainage pipe 3-1 includes a first pipe section 3-1-1 and a second pipe section 3-1-2 which are connected to each other. The cross-sectional area of the first pipe section 3-1-1 is larger than the cross-sectional area of the second pipe section 3-1-2. The end of the first pipe section 3-1-1 away from the second pipe section 3-1-2 is constructed as one of the water inlet and the drain outlet, and the end of the second pipe section 3-1-2 away from the first pipe section 3-1-1 is constructed as the other of the water inlet and the drain outlet. The guide plate 3-4 is arranged in the first pipe section 3-1-1. By arranging the guide plate 3-4 in the first pipe section 3-1-1 with a larger cross-sectional area, the installation of the guide plate 3-4 is facilitated, and the residence time of the intake air flow in the first pipe section 3-1-1 can be increased, so that it collides with the guide plate 3-4 as fully as possible.
[0068] Preferably, in an embodiment of the present application, one end of the first pipe segment 3-1-1 away from the second pipe segment 3-1-2 is constructed as a water inlet, and one end of the second pipe segment 3-1-2 away from the first pipe segment 3-1-1 is constructed as a drain outlet, so that the incoming air flow first enters the second pipe segment 3-1-2 with a smaller cross-sectional area, and then enters the first pipe segment 3-1-1 with a larger cross-sectional area. The sudden increase in the cross-sectional area helps to reduce the air flow velocity, thereby having the effect of weakening the incoming air flow velocity.
[0069] like Figure 14 As shown, in the embodiment of the present application, the projection of a guide vane 3-4 closest to the second pipe segment 3-1-2 on the plane where the connection port between the first pipe segment 3-1-1 and the second pipe segment 3-1-2 is located covers the connection port, so as to ensure that the incoming air flowing from the first pipe segment 3-1-1 into the second pipe segment 3-1-2 hits the guide vane 3-4 as much as possible.
[0070] like Figures 16 to 18 As shown, in another embodiment of the present application, the wind resistance structure includes a main flow channel 3-5 and a secondary flow channel 3-6. The two ends of the main flow channel 3-5 are respectively connected to the drain outlet and the water inlet of the drainage pipe 3-1, and the two ends of the secondary flow channel 3-6 are respectively connected to the main flow channel 3-5. Both ends of the secondary flow channel 3-6 are inclined in the direction away from the water inlet of the drainage pipe 3-1. When in use, the incoming air flows along the main flow channel 3-5. When it moves to the opening at the lower end of the secondary flow channel 3-6, it is divided into two streams. One stream continues to flow along the main flow channel 3-5, and the other stream continues to flow along the main flow channel 3-5. The stream flows along the secondary channel 3-6 and changes direction along the secondary channel 3-6, and finally flows back to the main channel 3-5 from the upper opening of the secondary channel 3-6. At this time, since the upper opening of the secondary channel 3-6 is inclined away from the water inlet of the drainage pipe 3-1, the airflow out of the upper opening of the secondary channel 3-6 and the airflow in the main channel 3-5 are in the opposite direction and cross each other, thereby weakening the incoming airflow and increasing the incoming air resistance. During drainage, the accumulated water flows along the main channel 3-5 and will not be affected by the secondary channel 3-6.
[0071] Further optimize the above technical solutions, such as Figures 16 to 18 As shown, the wind resistance structure includes multiple secondary flow channels 3-6. Along the direction from the water inlet to the drain outlet of the drainage pipe 3-1, each secondary flow channel 3-6 is alternately staggered on both sides of the main flow channel 3-5. In this way, each time the incoming air flow passes through a secondary flow channel 3-6, an air flow will be separated, and the direction will be changed through the secondary flow channel 3-6 to become an air flow that is opposite to the air flow in the main flow channel 3-5. That is, the air flow can be weakened and decelerated each time it passes through a secondary flow channel 3-6.
[0072] like Figures 16 to 18As shown, in order to facilitate the diversion of the incoming air flow into the secondary flow channel 3-6, in one embodiment of the present application, the main flow channel 3-5 includes a plurality of segmented flow channels, and each segmented flow channel is connected in sequence along the direction from the water inlet to the drain outlet of the drainage pipe 3-1, and two adjacent segmented flow channels are set at an angle. It should be noted that the angle between the two segmented flow channels is preferably greater than or equal to 90° to avoid affecting the discharge of accumulated water. A secondary flow channel 3-6 is provided on one side of at least one segmented flow channel. Of course, in order to achieve the best air-blocking effect, it is best to have a secondary flow channel 3-6 on one side of each segmented flow channel.
[0073] In order to increase the air intake resistance as much as possible, in one embodiment of the present application, along the direction from the water inlet to the drain outlet of the drainage pipe 3-1, the upstream segmented flow channel of the two adjacent segmented flow channels is the upstream segmented flow channel, and the downstream segmented flow channel is the downstream segmented flow channel. The auxiliary flow channel 3-6 includes an arc flow channel and a straight flow channel connected to each other. The straight flow channel is connected to the downstream segmented flow channel through the end of the upstream segmented flow channel close to the drain outlet, and the straight flow channel and the downstream segmented flow channel extend in the same direction. The arc flow channel is connected to the end of the upstream segmented flow channel away from the downstream segmented flow channel. In this way, since the downstream segmented flow channel is directly connected to the straight flow channel of the auxiliary flow channel 3-6 connected to the upstream segmented flow channel, the intake air flow in the downstream segmented flow channel will mainly enter the auxiliary flow channel 3-6 connected to the upstream segmented flow channel, and a small part will enter the upstream segmented flow channel after changing direction, which can more effectively increase the air intake resistance.
[0074] like Figure 18 As shown, in the embodiment of the present application, the drainage pipe 3-1 using the wind resistance structure of the guide plate 3-4 and the wind resistance structure of the main channel 3-5 and the secondary channel 3-6 are both composed of two parts, namely, the pipe body 3-7 and the pipe cover 3-8. The pipe body 3-7 and the pipe cover 3-8 are connected to form the drainage pipe 3-1. The guide plate 3-4 can be set on the pipe body 3-7 and / or the pipe cover 3-8. The main channel 3-5 and the secondary channel 3-6 can be formed on the pipe body 3-7 by digging grooves. Of course, the water collecting tank 3-2 can also be surrounded by the pipe body 3-7 and the pipe cover 3-8, that is, the water collecting tank 3-2 and the drainage pipe 3-1 can be an integrated structure for easy installation in the cabinet 1.
[0075] The wind resistance structures in the above embodiments all adopt structural designs to achieve the effect of improving wind resistance without affecting drainage, do not rely on power devices, have no moving parts, have high reliability and low failure rate.
[0076] An embodiment of the present application also provides a cabinet 1, which is provided with a ventilation duct 1-1, and the cabinet 1 also includes a drainage structure 3 as described in the above embodiment. Since the cabinet 1 adopts the drainage structure 3 in the above embodiment, the technical effect of the cabinet 1 please refer to the above embodiment.
[0077] like Figure 2 and Figure 3 As shown, a first cavity 1-4 independent of the ventilation duct 1-1 is provided in the cabinet 1, and the drainage structure 3 is provided in the first cavity 1-4. In this way, the drainage structure 3 is not interfered with by other equipment in the cabinet 1 and is more convenient to arrange.
[0078] like Figure 2 and Figure 3 As shown, in the embodiment of the present application, the ventilation duct 1-1 includes a second cavity 1-1-1 and a third cavity 1-1-2, wherein the second cavity 1-1-1 is arranged at the top of the cabinet 1, and an air inlet 1-2 of the ventilation duct 1-1 is arranged at one end of the second cavity 1-1-1, the third cavity 1-1-2 is communicated with the second cavity 1-1-1, the third cavity 1-1-2 and the first cavity 1-4 are both located below the second cavity 1-1-1, and the first cavity 1-4 is close to the air inlet 1-2 relative to the third cavity 1-1-2, the air outlet 1-3 of the ventilation duct 1-1 is arranged at one end of the third cavity 1-1-2 away from the second cavity 1-1-1, and the second cavity 1-1-2 is connected to the third cavity 1-1-2. Both the cavity 1-1-1 and the third cavity 1-1-2 can be used as equipment cavities for placing equipment. Of course, since external water may enter from the air inlet 1-2, it is best to place the equipment in the third cavity 1-1-2 to isolate it from the air inlet 1-2. The fan 2 for generating airflow can be set at at least one of the three places: the air inlet 1-2, the air outlet 1-3 and the connection between the second cavity 1-1-1 and the third cavity 1-1-2. The first cavity 1-4, the second cavity 1-1-1 and the third cavity 1-1-2 are set in the above-mentioned cabinet 1 to isolate the drainage structure 3, equipment and parts that are prone to water accumulation in the cabinet 1, which can effectively ensure the safety of the equipment.
[0079] It should also be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0080] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the core idea of the present application. Although the present application has been described with reference to the preferred embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
Claims
1. A drainage structure, applied to a cabinet (1), wherein the cabinet (1) is provided with a ventilation duct (1-1), the ventilation duct (1-1) having an air inlet (1-2), the air inlet direction of the air inlet (1-2) being a first direction, and characterized in that: The drainage structure (3) comprises: A drainage pipe (3-1), the drainage pipe (3-1) comprising a water inlet and a drain outlet, the drain outlet being at a lower level than the water inlet, the water inlet being connected to the ventilation duct (1-1), the drain outlet extending in a second direction away from the air inlet, the first direction and the second direction being non-parallel to each other.
2. The drainage structure according to claim 1, wherein: The drainage structure (3) further comprises a water collecting structure, and the water inlet of the drainage pipe (3-1) is connected to the ventilation duct (1-1) through the water collecting structure.
3. The drainage structure according to claim 2, characterized in that: The water collection structure is a water collection trough (3-2), and the lowest point of the ventilation duct (1-1) is connected to the water collection trough (3-2).
4. The drainage structure according to any one of claims 1 to 3, characterized in that: The drainage pipe (3-1) is provided with a wind resistance structure, and the wind resistance structure is used to increase the resistance of the incoming air along the direction from the drainage port to the water inlet of the drainage pipe (3-1).
5. The drainage structure according to claim 4, characterized in that: The wind resistance structure includes at least one of an arc-shaped pipe segment (3-3), a broken-line pipe segment and a spiral pipe segment.
6. The drainage structure according to claim 4, characterized in that: The wind resistance structure comprises a guide plate (3-4) arranged in the drainage pipe (3-1); a plurality of the guide plates (3-4) are arranged alternately and staggered on both sides of the drainage pipe (3-1) along the direction from the water inlet to the drainage outlet, and are spaced apart from each other; the guide plates (3-4) on both sides of the drainage pipe (3-1) partially overlap along the direction from the water inlet to the drainage outlet.
7. The drainage structure according to claim 6, characterized in that: One end of the partially overlapping guide plates (3-4) on both sides of the drainage pipe (3-1) is inclined in a direction away from the water inlet.
8. The drainage structure according to claim 6, wherein: The drainage pipe (3-1) includes a first pipe section (3-1-1) and a second pipe section (3-1-2) connected to each other, the cross-sectional area of the first pipe section (3-1-1) is larger than the cross-sectional area of the second pipe section (3-1-2), one end of the first pipe section (3-1-1) away from the second pipe section (3-1-2) is constructed as one of the water inlet and the drain, and one end of the second pipe section (3-1-2) away from the first pipe section (3-1-1) is constructed as the other of the water inlet and the drain, and the guide plate (3-4) is arranged in the first pipe section (3-1-1).
9. The drainage structure according to claim 8, characterized in that: The projection of the guide plate (3-4) closest to the second pipe section (3-1-2) on the plane where the connection port of the first pipe section (3-1-1) and the second pipe section (3-1-2) is located covers the connection port.
10. The drainage structure according to claim 4, characterized in that: The wind resistance structure comprises a main flow channel (3-5) and a secondary flow channel (3-6), the two ends of the main flow channel (3-5) are respectively connected to the drainage port and the water inlet of the drainage pipe (3-1), the two ends of the secondary flow channel (3-6) are respectively connected to the main flow channel (3-5), and both ends of the secondary flow channel (3-6) are inclined in a direction away from the water inlet of the drainage pipe (3-1).
11. The drainage structure according to claim 10, wherein: The wind resistance structure comprises a plurality of auxiliary flow channels (3-6), and along the direction from the water inlet to the drain outlet of the drainage pipe (3-1), the auxiliary flow channels (3-6) are alternately staggeredly arranged on both sides of the main channel (3-5).
12. The drainage structure according to claim 10, wherein: The main flow channel (3-5) includes a plurality of segmented flow channels, each of which is connected in sequence along the direction from the water inlet to the outlet of the drainage pipe (3-1), two adjacent segmented flow channels are arranged at an angle, and the secondary flow channel (3-6) is arranged on one side of at least one segmented flow channel.
13. The drainage structure according to claim 12, wherein: Along the direction from the water inlet to the drain outlet of the drainage pipe (3-1), the upstream segmented flow channel of the two adjacent segmented flow channels is the upstream segmented flow channel, and the downstream segmented flow channel is the downstream segmented flow channel. The secondary flow channel (3-6) includes an arc flow channel and a straight flow channel connected to each other. The straight flow channel is connected to the downstream segmented flow channel through an end of the upstream segmented flow channel close to the drain outlet, and the straight flow channel and the downstream segmented flow channel extend in the same direction. The arc flow channel is connected to an end of the upstream segmented flow channel away from the downstream segmented flow channel.
14. A cabinet, wherein the cabinet (1) is provided with a ventilation duct (1-1), characterized in that: It also includes the drainage structure (3) according to any one of claims 1 to 13.
15. The cabinet according to claim 14, wherein: A first cavity (1-4) independent of the ventilation duct (1-1) is provided in the cabinet (1), and the drainage structure (3) is provided in the first cavity (1-4).
16. The cabinet according to claim 15, wherein: The ventilation duct (1-1) comprises: A second cavity (1-1-1), the second cavity (1-1-1) being arranged on the top of the cabinet (1), and an air inlet of the ventilation duct (1-1) being arranged at one end of the second cavity (1-1-1); A third cavity (1-1-2), the third cavity (1-1-2) is communicated with the second cavity (1-1-1), the third cavity (1-1-2) and the first cavity (1-4) are both located below the second cavity (1-1-1), and the first cavity (1-4) is closer to the air inlet (1-2) relative to the third cavity (1-1-2), and the air outlet (1-3) of the ventilation duct (1-1) is arranged at one end of the third cavity (1-1-2) away from the second cavity (1-1-1).
17. An electrical device, characterized in that: Comprising the cabinet (1) according to any one of claims 14 to 16.