Outdoor case dust and water removal device

Abstract

The invention discloses an outdoor case dust and water removal device which comprises an air inlet assembly, a dust collection barrel and a dust collection blade assembly, the dust collection barrel comprises an inner barrel and an outer barrel, an air inlet channel is formed in the inner barrel, a dust collection cavity is formed between the inner barrel and the outer barrel, and the dust collection blade assembly is arranged in the air inlet channel and comprises a main shaft; the dust collection barrel is arranged coaxially with the dust collection barrel; the blades are arranged in the circumferential direction of the main shaft and are arranged in multiple groups in the axial direction of the main shaft; each blade is of a V-shaped structure with an opening facing the air inlet end of the air inlet channel, and flanges are arranged on the two sides of each blade; the driving part is used for controlling the main shaft to rotate; the included angle between the blocking edge and the blade is not larger than 90 degrees, a plurality of annular grooves are formed in the inner barrel in the axial direction of the inner barrel, and the blade penetrates through the annular grooves and extends into the dust collection cavity. The invention aims to provide the dust and water removal device for the outdoor case, and the dust and water can be continuously and effectively removed in an environment with much dust through air intake, so that the problem that the filter screen is blocked by excessive dust is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal and water removal equipment, and particularly relates to an outdoor chassis dust removal and water removal device. Background Art

[0002] With the increasing number of various outdoor electronic devices, and the performance of electronic devices getting higher and higher, the thermal power consumption is also getting larger and larger. Even more electronic devices are required to be installed in the same chassis. Therefore, the heat dissipation requirements for outdoor chassis are constantly increasing, and even the use of fans for heat dissipation is necessary.

[0003] Currently, in the industry, active ventilation and heat dissipation for outdoor chassis usually set one or more air inlets and outlets, and then use fans to introduce cold air outside the chassis into the chassis, while exhausting the hot air inside the chassis to achieve the heat dissipation effect. However, in an environment with a lot of dust, how to prevent dust from entering the chassis. The common method in the industry is to add a filter screen at the air inlet to filter dust. However, the filter screen will become clogged after being used for a period of time, resulting in a poor heat dissipation effect. Regularly replacing the filter screen is too troublesome, and it is even impossible to operate in an environment with a lot of dust.

[0004] In some cases, the air intake at the air inlet of the chassis may be mixed with water droplets, and these water droplets entering the chassis may cause damage to electronic devices and result in economic losses. Summary of the Invention

[0005] 1. Technical Problems to be Solved by the Invention The purpose of the present invention is to provide an outdoor chassis dust removal and water removal device, which can achieve continuous and effective dust removal and water removal during air intake in an environment with a lot of dust, and solve the problem of excessive dust clogging the filter screen.

[0006] 2. Technical Solutions

[0007] To solve the above problems, the technical solution provided by the present invention is as follows: An outdoor chassis dust removal and water removal device includes an air intake assembly, a dust collection cylinder, and a dust collection blade assembly. The dust collection cylinder includes an inner cylinder and an outer cylinder. An air intake channel is provided inside the inner cylinder, and a dust collection cavity is provided between the inner cylinder and the outer cylinder. The dust collection blade assembly is arranged in the air intake channel and includes a main shaft coaxially arranged with the dust collection cylinder; a plurality of blades circumferentially arranged along the main shaft and provided with multiple groups along the axial direction of the main shaft; the blades are in a V-shaped structure with the opening facing the air intake end of the air intake channel, and both sides of the blades are provided with baffle edges; a driving member for controlling the rotation of the main shaft; the included angle between the baffle edge and the blade is not greater than 90°, and a plurality of annular grooves are axially provided on the inner cylinder, and the blades pass through the annular grooves and extend into the dust collection cavity.

[0008] Preferably, several blades in the same group are connected by a reinforcing rib.

[0009] Preferably, the reinforcing rib is of an annular structure and is provided at the annular groove.

[0010] Preferably, a plurality of annular shielding edges are provided in the dust collection cavity. The shielding edges are provided between two adjacent annular grooves. The outer diameter of the shielding edge is greater than the outer diameter of the blade and less than the inner diameter of the outer cylinder.

[0011] Preferably, an upper baffle is arranged at an interval above the inner end of the shielding edge.

[0012] Preferably, a guiding slope is arranged at the outer end of the blade and slopes downward.

[0013] Preferably, a water storage cavity is formed inside the main shaft. A plurality of water outlet holes corresponding to the plurality of blades one by one are provided on the main shaft, and a pressure check valve is arranged at the water outlet hole.

[0014] Preferably, the opening pressure of the pressure check valve near the air inlet end of the air inlet passage is less than the opening pressure of the pressure check valve near the air outlet end of the air inlet passage.

[0015] Preferably, a cooling system is further included for controlling the water temperature in the water storage cavity.

[0016] Preferably, a water storage cavity is formed inside the main shaft. A plurality of water outlet holes corresponding to the plurality of blades one by one are provided on the main shaft, and an electric control valve is arranged at the water outlet hole.

[0017] 3. Beneficial effects

[0018] Adopting the technical solution provided by the present invention, compared with the prior art, the following beneficial effects are obtained: 1). The dust-removing and water-removing blade structure in the present invention can effectively capture dust particles and water droplets in the air flow and converge them in the annular dust collection cylinder through centrifugal action. The filter screen is used to block dust particles through fine mesh holes, so the size of its mesh holes determines its blocking effect and ventilation efficiency. To solve this problem, this solution abandons the filter screen solution and uses blades with a specific structure to capture dust particles and water droplets and timely transport them into the dust collection cylinder, and there is no problem of blockage caused by dust accumulation.

[0019] 2). In order to increase the dust-removing effect in an environment with particularly large dust, a structure for spraying water to capture dust is added in the present invention, which can quickly polymerize scattered dust particles into large particles and gather them in the dust collection cylinder. The water spraying port is closed in the normal state and is only opened by water pressure when the water pump works. At the same time, the starting pressure of water spraying for each layer of dust collection blades is also different, and the lower-layer water spraying holes have a higher probability of use, saving water usage.

[0020] 3) In order to solve the condensation problem caused by the sudden change in the external temperature when the outdoor chassis may work in a high-humidity environment, on the basis of the original dust removal mechanism, the present invention adds no excessive structure to enable it to have the function of condensing and removing water vapor, making its air intake system function more perfect and solving many pain points encountered in the current industry.

[0021] 4) The dust removal and water removal device of the present invention has a simple structure, is easy to manufacture, and can be installed as a component on various outdoor chassis, with good market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an outdoor chassis dust removal and water removal device proposed in an embodiment of the present invention; Figure 2 It is a schematic cross-sectional view of an outdoor chassis dust removal and water removal device proposed in an embodiment of the present invention; Figure 3 is Figure 2 a partial schematic diagram at A in Figure 4 It is a schematic diagram of the intake air flow trajectory of the blades in an outdoor chassis dust removal and water removal device proposed in an embodiment of the present invention; 1. Intake air component; 2. Dust collection cylinder; 21. Inner cylinder; 22. Outer cylinder; 2a. Intake air passage; 2b. Dust collection chamber; 2c. Annular groove; 3. Dust collection blade assembly; 31. Main shaft; 32. Blade; 33. Flange; 34. Driving part; 4. Reinforcing rib; 5. Shielding edge; 6. Upper baffle; 7. Guide slope; 8. Water storage chamber; 9. Water outlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and do not limit the protection scope of the present invention.

[0024] It should be noted that when an element is referred to as "fixed to", "arranged on", "fixedly arranged on", or "mounted on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. Further, when an element is considered to be "fixedly connected to" another element, the two can be fixed in a detachable connection manner or a non-detachable connection manner, such as socket connection, snap connection, integrally formed fixation, welding, etc., which can be achieved in the prior art and will not be elaborated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is perpendicular, but due to the influence of manufacturing and assembly, there may be a certain perpendicular error. The terms "perpendicular", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration and do not represent the only implementation mode.

[0025] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of this invention in this article are only for the purpose of describing specific implementation modes and are not intended to limit this invention. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0026] The "first" and "second" involved in this invention do not represent specific quantities and orders, but are only used for name distinction.

[0027] Combined with the appended Figures 1 - 4, An outdoor chassis dust and water removal device in this embodiment includes an air intake assembly 1, a dust collection cylinder 2, and a dust collection blade assembly 3. In this embodiment, taking the state where the axis of the dust collection cylinder 2 is vertical as an example for description, the air intake assembly 1 is fixed to the upper end of the dust collection cylinder 2, so that the gas passes through the dust collection cylinder 2 from bottom to top. The dust collection cylinder 2 includes an inner cylinder 21 and an outer cylinder 22 that are fixedly connected. The inner cylinder 21 and the outer cylinder 22 are two coaxial cylinders with different diameters, and the diameter of the outer cylinder 22 is larger than that of the inner cylinder 21. The inside of the inner cylinder 21 is hollow to form an air intake passage 2a. Due to the dimensional gap between the inner cylinder 21 and the outer cylinder 22, a dust collection chamber 2b is formed at the interval. The dust collection blade assembly 3 is arranged in the air intake passage 2a and includes a main shaft 31, which is coaxially arranged with the dust collection cylinder 2, and the main shaft 31 is arranged at the axis of the dust collection cylinder 2; several blades 32 are arranged circumferentially along the main shaft 31 and are provided with multiple groups axially along the main shaft 31. Each group includes at least two or more blades 32 and is radially distributed. Each group of blades 32 is staggered by a certain angle. After multiple groups are stacked, it can be seen from top to bottom that the air intake passage 2a of the dust collection cylinder 2 is basically blocked by multiple groups of blades 32; the blade 32 is a V-shaped structure with an opening facing the air intake end of the air intake passage 2a (downward in this embodiment). The cross-section of the blade 32 is a large obtuse angle. Both sides of the blade 32 are provided with retaining edges 33. The retaining edges 33 are arranged on the lower surface of the blade 32 and have the same length as the blade 32. The included angle between the retaining edge 33 and the blade 32 is not greater than 90° (is an acute angle); a driving member 34 is used to control the rotation of the main shaft 31. In this embodiment, the driving member 34 is a motor and is installed at the upper end of the dust collection cylinder 2; several annular grooves 2c are arranged axially along the inner cylinder 21. Each group of blades 32 corresponds to an annular groove 2c, and the blades 32 pass through the annular grooves 2c and extend into the dust collection chamber 2b. That is to say, the diameter of the same group of blades 32 is larger than that of the inner cylinder 21.

[0028] The working principle of the blade 32 collecting dust and water droplets in the incoming air flow is as follows: Under the action of the air intake assembly 1, an upward incoming air flow is generated in the air intake passage 2a. When the incoming air flow flows upward and encounters the blade 32, it will form Figure 4 the incoming air flow trajectory as shown. During the flowing process, because the mass of dust particles and water droplets is relatively large, under the action of inertia, the dust particles and water droplets will move along the dust trajectory of the marked line as shown in the figure. While the blade 32 rotates, the dust particles and water droplets will be guided by the V-shaped structure and gather at the retaining edge 33 at the edge of the V-shaped structure, and will be radially thrown outward along the main shaft 31 due to centrifugal force. The dust particles and water droplets are finally collected in the dust collection chamber 2b. It is only necessary to clean the dust collection chamber 2b regularly, or a discharge port can also be set to continuously discharge through a pipeline.

[0029] This outdoor chassis dust and water removal device can achieve continuous and effective dust removal during intake in a dusty environment, solve the problem of excessive dust clogging the filter screen, remove water during intake, and prevent water from entering while intake is occurring. The overall structure has no components that require frequent maintenance, and the maintenance cost is low, making it suitable for large-scale deployment.

[0030] As a preferred embodiment of the present invention, in order to improve the connection strength between the blades 32 in the same group and the stability during rotation, several blades 32 in the same group are connected by a reinforcing rib 4, and the reinforcing rib 4 is designed as an annular structure and is arranged at the annular groove 2c. The diameter of the reinforcing rib 4 is the same as the diameter of the inner cylinder 21, and the height of the reinforcing rib 4 is close to the height of the annular groove 2c. This design mainly serves to prevent internal dust from returning to the intake passage 2a.

[0031] As a preferred embodiment of the present invention, several annular blocking edges 5 are provided in the dust collection chamber 2b. The outer end of the blocking edge 5 is inclined downward to form a slope. The blocking edge 5 is arranged between two adjacent annular grooves 2c. The outer diameter of the blocking edge 5 is larger than the outer diameter of the blade 32 and smaller than the inner diameter of the outer cylinder 22. A channel allowing dust and water droplets to fall downward is formed at an interval between the outer end of the blocking edge 5 and the inner wall of the outer cylinder 22. And since the outer diameter of the blocking edge 5 is larger than the outer diameter of the blade 32, it can effectively prevent the falling dust and water droplets from hitting the lower blade 32 and causing secondary rebound.

[0032] As a preferred embodiment of the present invention, an upper baffle 6 is arranged at an interval above the inner end of the blocking edge 5. The upper baffle 6 is horizontally arranged at the lower edge of the upper annular groove 2c. And an inclined downward guiding slope 7 is provided at the outer end of the blade 32. The setting of the guiding slope 7 changes the rebound angle of the dust and water droplets after hitting the inner wall of the outer cylinder 22. As Figure 3 described, after the dust and water droplets hit the inner wall of the outer cylinder 22, they first rebound to the inner wall of the outer cylinder 22, then to the blocking edge 5, then to the upper baffle 6, and finally, after multiple rebounds between the upper baffle 6 and the blocking edge 5, they land on the upper surface of the blocking edge 5 and slide along its surface. This design can effectively release the centrifugal force of the dust and water droplets and prevent them from rebounding back into the intake passage 2a.

[0033] As a preferred embodiment of the present invention, the spindle 31 has a water storage chamber 8 inside, and further includes a water tank and a water pump for replenishing water to the spindle 31. A number of water outlet holes 9 are provided on the spindle 31 corresponding to a number of blades 32 one by one. A pressure check valve is provided at the water outlet hole 9, such as a rubber valve flap that automatically opens under a relatively large pressure. It requires a certain amount of force to push open the pressure check valve. The water thrown out by centrifugal force flushes the V-shaped grooves of the blades 32, which can ensure the smoothness of the inner surface of the blades 32 and ensure the stability of the route when dust and water droplets are thrown out. Moreover, the opening pressure of the pressure check valve on the water outlet hole 9 increases sequentially from the lower-layer dust collection blades 32 to the upper layer. This is because the smaller the dust particles contained in the incoming air flow are as it reaches the upper layer, which greatly saves water consumption and improves the overall efficiency.

[0034] As a preferred embodiment of the present invention, in order to specifically remove water vapor in the high-humidity incoming air flow, it further includes a cooling system for controlling the water temperature in the water storage chamber 8. The specific implementation method is as follows: an internal temperature and humidity sensor is provided above the intake assembly 1, and an incoming air temperature and humidity sensor is provided below the dust collection blade assembly 3. A heat exchange block supported by a highly thermally conductive metal (aluminum or copper) is provided in the water tank that supplies water to the spindle 31. The heat exchange block is connected to a semiconductor heat sink, and a temperature sensor is also provided in the water tank. These are combined with the semiconductor heat sink control circuit to form a cooling system that can cool the water in the water tank. The dust collection blade assembly 3 is made of a highly thermally conductive metal (aluminum or copper). When the incoming air temperature and humidity sensor detects that the incoming air humidity content is very high, the cooling system starts to work, reducing the water tank temperature. At this time, the temperature of the dust collection blade assembly 3 also decreases, and the water vapor in the incoming air flow condenses on the lower surface of the blades 32 and is then thrown into the dust collection cylinder 2. By comparing the humidity changes of the incoming air temperature and humidity sensor and the internal temperature and humidity sensor, the water temperature change is adjusted. Of course, the water temperature setting should prevent the water from freezing.

[0035] As other preferred embodiments of the present invention, in order to remove dust more effectively, an internal dust detection sensor is provided above the intake assembly 1, and an incoming air dust detection sensor is provided below the dust collection blade assembly 3. The spindle 31 has a water storage chamber 8 inside. A number of water outlet holes 9 are provided on the spindle 31 corresponding to a number of blades 32 one by one. An electric control valve is provided at the water outlet hole 9. The spindle 31 is connected to the water pump water tank, so that the water outlet hole 9 can spray water under program control. In an environment with particularly large dust, when the internal dust detection sensor detects that the air dust content is still very high, in order to better capture dust particles, the water outlet hole 9 can be controlled to spray water so that the dust particles in the incoming air flow are wetted and are more easily captured. In addition, the data of the internal dust detection sensor and the incoming air dust detection sensor can be transmitted through the equipment networking inside the chassis, and whether the dust removal mechanism fails can also be analyzed through their numerical relationship.

[0036] The above has schematically described the present invention and its embodiments. This description is not restrictive, and what is shown in the drawings is only one of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. An outdoor chassis dust and water removal device, characterized in that: It includes an air intake assembly, a dust collection cylinder, and a dust collection blade assembly. The dust collection cylinder includes an inner cylinder and an outer cylinder. An air intake passage is provided inside the inner cylinder, and a dust collection chamber is provided between the inner cylinder and the outer cylinder. The dust collection blade assembly is arranged in the air intake passage and includes a main shaft, which is coaxially arranged with the dust collection cylinder; a plurality of blades, which are arranged circumferentially along the main shaft and are provided with multiple groups axially along the main shaft; the blades are in a V-shaped structure with the opening facing the air intake end of the air intake passage, and baffle edges are provided on both sides of the blades; a driving member for controlling the rotation of the main shaft; the included angle between the baffle edge and the blade is not greater than 90°, and a plurality of annular grooves are axially provided on the inner cylinder. The blades pass through the annular grooves and extend into the dust collection chamber.

2. The outdoor chassis dust and water removal device according to claim 1, characterized in that: A plurality of the blades in the same group are connected by a reinforcing rib.

3. The outdoor chassis dust and water removal device according to claim 2, characterized in that: The reinforcing rib is in an annular structure and is arranged at the annular groove.

4. The outdoor chassis dust and water removal device according to claim 1, characterized in that: A plurality of annular shielding edges are provided in the dust collection chamber. The shielding edges are arranged between two adjacent annular grooves. The outer diameter of the shielding edge is greater than the outer diameter of the blade and less than the inner diameter of the outer cylinder.

5. The outdoor chassis dust and water removal device according to claim 4, characterized in that: An upper baffle is arranged at an interval above the inner end of the shielding edge.

6. An outdoor chassis dust and water removal device according to any one of claims 1-5, characterized in that: A guiding slope is provided at the outer end of the blade and is inclined downward.

7. An outdoor chassis dust and water removal device according to any one of claims 1-5, characterized in that: A water storage cavity is provided inside the main shaft. A plurality of water outlet holes corresponding to the plurality of blades one by one are provided on the main shaft, and a pressure check valve is provided at the water outlet hole.

8. An outdoor chassis dust and water removal device according to claim 7, characterized in that: The opening pressure of the pressure check valve near the air intake end of the air intake passage is less than the opening pressure of the pressure check valve near the air outlet end of the air intake passage.

9. The dust and water removal device for an outdoor chassis according to claim 7, characterized in that: It further includes a cooling system for controlling the water temperature in the water storage cavity.

10. An outdoor chassis dust and water removal device according to any one of claims 1-5, characterized in that: A water storage cavity is provided inside the main shaft. A plurality of water outlet holes corresponding to the plurality of blades one by one are provided on the main shaft, and an electric control valve is provided at the water outlet hole.

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