Sand prevention assembly, sand prevention door plate and outdoor cabinet
By using rotating fans and ventilation holes in the sand protection components of the outdoor cabinet of the photovoltaic system, the corrosion problem caused by sand and dust entry is solved, the maintenance frequency and cost are reduced, and the system life is extended.
Patent Information
- Application Number
- CN202420840764.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-22
AI Technical Summary
Photovoltaic system outdoor cabinets are easily corroded by sand and dust entering through ventilation windows in wind and sand environments. The existing dustproof nets are easily blocked, and are frequently maintained and costly.
A sand protection component is designed, including a sand protection plate and a sand protection cover. The sand protection plate is equipped with a rotating fan and ventilation holes. The sand protection cover is located on the front side to block large objects. The fan rotates under the airflow to prevent sand and dust. Enter.
Effectively prevent sand and dust from entering the outdoor cabinet, reduce maintenance frequency and cost, and extend system life.
Smart Images
Figure CN222356693U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic energy storage, and in particular to a sand-proof component, a sand-proof door panel and an outdoor cabinet. Background Art
[0002] Solar energy is a widely distributed, inexhaustible, green energy source and one of the important energy sources for the sustainable development of human society. At present, people mainly use solar energy for photovoltaic power generation, which absorbs solar energy through photovoltaic modules and converts it into electrical energy, thus providing energy for people's lives and production. At present, the proportion of outdoor cabinets in photovoltaic systems is increasing. In order to ensure the normal operation of photovoltaic systems, outdoor cabinets need to meet the requirements of waterproofing, dustproofing, maintenance costs, and air intake area.
[0003] Generally, photovoltaic systems are installed in open areas with sufficient sunlight, which leads to strong wind and sand in the surrounding areas. Since outdoor cabinets need to be equipped with ventilation windows to ensure heat dissipation, dust will enter the interior of the outdoor cabinet through the ventilation windows, accelerating the corrosion of the internal structure of the outdoor cabinet and reducing the life of the system. In the prior art, a dustproof net with a small hole structure is generally installed at the ventilation window to block dust, but the dustproof net is easily blocked by dust, which is troublesome and frequent to maintain and has high cost. Utility Model Content
[0004] The utility model aims to provide a sand-proof component, a sand-proof door panel and an outdoor cabinet, which avoid the problem of frequent maintenance caused by sand and dust blocking the sand-proof holes and reduce costs.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A sand prevention assembly, comprising:
[0007] A sand-proof plate, wherein the sand-proof plate is provided with a plurality of sand-proof holes, and a fan is rotatably arranged in each of the sand-proof holes;
[0008] A sand-proof cover is arranged at a distance from the sand-proof plate and is located at the front side of the sand-proof plate. The sand-proof cover is provided with a plurality of ventilation holes.
[0009] As an optional solution for the above-mentioned sand-proof component, the sand-proof hole includes a large-diameter section and a small-diameter section that are connected, the large-diameter section is located on a side close to the sand-proof cover, the fan is rotatably arranged in the large-diameter section, and the orthographic projection of the fan along the direction of the rotation axis covers the small-diameter section.
[0010] As an optional solution of the above-mentioned sand-proof component, the inner diameter of the large-diameter section gradually increases in a direction approaching the sand-proof cover.
[0011] As an optional solution of the above-mentioned sand-proof component, the shape of the ventilation hole is one of circular, elliptical and diamond.
[0012] As an optional solution for the above-mentioned sand-proof component, the sand-proof plate also includes a bracket, and the bracket is arranged in each of the sand-proof holes. The bracket includes a fixing part and a supporting part, the fixing part is fixedly connected to the sand-proof plate, the supporting part extends radially along the sand-proof hole, and the fan is rotatably arranged on the supporting part.
[0013] As an optional solution of the above-mentioned sand-proof component, the support portion is provided with a plurality of the fixing portions at intervals along the circumferential direction.
[0014] A sand-proof door panel comprises the sand-proof component and a door body, wherein the door body is provided with a ventilation window, and the sand-proof component is arranged in the ventilation window.
[0015] As an optional solution to the above-mentioned sand-proof door panel, the sand-proof cover is spaced apart from the bottom surface of the ventilation window.
[0016] As an optional solution to the above-mentioned sand-proof door plate, the bottom surface of the ventilation window is inclined downward in the direction from the sand-proof plate to the sand-proof cover.
[0017] An outdoor cabinet comprises the anti-sand door plate and a box body, wherein the box body is provided with an opening, and the anti-sand door plate is arranged on the box body and can open or close the opening.
[0018] Beneficial effects of the utility model:
[0019] The utility model provides a sand-proof component, a sand-proof door plate and an outdoor cabinet. In the sand-proof component, the sand-proof cover can block larger objects such as branches and leaves to protect the sand-proof plate, and the sand and dust can pass through the ventilation holes along with the airflow and enter the sand-proof hole. The fan in the sand-proof hole rotates under the drive of the airflow, and when the sand and dust hit the fan blades, it will move toward the inner wall of the sand-proof hole under the drive of the fan blades, thereby preventing the sand and dust from entering the interior of the outdoor cabinet through the sand-proof hole.
[0020] Since the sand-proof component utilizes the rotation of the fan to prevent sand and dust from passing through, the inner diameter of the sand-proof hole is much larger than the diameter of the sand and dust, thereby avoiding the problem of frequent maintenance caused by sand and dust blocking the sand-proof hole and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural schematic diagram of the anti-sand door plate provided by the utility model;
[0022] Figure 2 It is a structural schematic diagram of the sand-proof door plate provided by the utility model without the sand-proof cover;
[0023] Figure 3It is a structural schematic diagram of the sand-proof plate provided by the utility model;
[0024] Figure 4 yes Figure 3 A partial enlarged view of the middle A;
[0025] Figure 5 yes Figure 3 Cross-sectional view at point A.
[0026] In the figure:
[0027] 100. Anti-sand door panels;
[0028] 1. Anti-sand components; 2. Door body;
[0029] 11. Anti-sand board; 12. Anti-sand cover; 21. Ventilation window;
[0030] 111. Anti-sand hole; 112. Fan; 113. Bracket; 121. Ventilation hole;
[0031] 1111, large diameter section; 1112, small diameter section; 1131, supporting portion; 1132, fixing portion. DETAILED DESCRIPTION
[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.
[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0035] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0036] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.
[0037] Solar energy is a widely distributed, inexhaustible, green energy source and one of the important energy sources for the sustainable development of human society. At present, people mainly use solar energy for photovoltaic power generation, which absorbs solar energy through photovoltaic modules and converts it into electrical energy, thus providing energy for people's lives and production. At present, the proportion of outdoor cabinets in photovoltaic systems is increasing. In order to ensure the normal operation of photovoltaic systems, outdoor cabinets need to meet the requirements of waterproofing, dustproofing, maintenance costs, and air intake area.
[0038] The present embodiment provides an outdoor cabinet, which includes a box body and a sand-proof door plate, wherein the box body is provided with an opening, and the sand-proof door plate is arranged on the box body and can open or close the opening. The opening is arranged to facilitate maintenance personnel to enter the box body to inspect and maintain the internal structure, and the sand-proof door plate can protect the structure inside the box body.
[0039] It is understandable that the box of an outdoor cabinet can be a whole chamber structure, or it can be divided into multiple chambers. For outdoor cabinets with multiple chambers, each chamber is provided with an opening. For chambers that do not need to be in contact with the external environment, ordinary door panels can be installed and sealed; while some chambers need to be ventilated with the outside to ensure normal working temperature, so the door panels of these chambers need to use anti-sand door panels to prevent sand and dust from entering and corroding the internal structure, reducing the service life.
[0040] In the prior art, the anti-sand door plate usually includes a dustproof net with a small hole structure. However, due to the small diameter of the small holes of the dustproof net, the dustproof net is easily blocked by sand and dust, and the maintenance is troublesome and frequent, and the cost is high.
[0041] like Figure 1 and Figure 2 As shown, the anti-sand door panel 100 includes an anti-sand component 1 and a door body 2. The door body 2 is provided with a ventilation window 21, and the anti-sand component 1 is arranged in the ventilation window 21. The door body 2 can open or close the corresponding opening, and the anti-sand component 1 can block the passage of sand and dust while ensuring ventilation, thereby protecting the internal structure of the box.
[0042] like Figure 1 to Figure 4 As shown, in order to solve the above problems, the sand-proof component 1 provided in this embodiment includes a sand-proof plate 11 and a sand-proof cover 12. The sand-proof plate 11 is provided with a plurality of sand-proof holes 111, and a fan 112 is rotatably arranged in each sand-proof hole 111; the sand-proof cover 12 is spaced apart from the sand-proof plate 11 and is located on the front side of the sand-proof plate 11, and the sand-proof cover 12 is provided with a plurality of ventilation holes 121.
[0043] In the sand-proof component 1, the sand-proof cover 12 can block larger objects such as branches and leaves and protect the sand-proof plate 11, while sand and dust can pass through the ventilation hole 121 with the airflow and enter the sand-proof hole 111. The fan 112 in the sand-proof hole 111 rotates driven by the airflow. When the sand and dust hit the blades of the fan 112, it will move toward the inner wall of the sand-proof hole 111 driven by the blades, thereby preventing the sand and dust from entering the interior of the outdoor cabinet through the sand-proof hole 111.
[0044] Since the anti-sand assembly 1 uses the rotation of the fan 112 to prevent the passage of sand and dust, the inner diameter of the anti-sand hole 111 is much larger than the diameter of the sand and dust, thereby avoiding the problem of frequent maintenance caused by sand and dust blocking the anti-sand hole 111, and reducing costs. At the same time, the fan 112 is driven to rotate by airflow, and there is no need to set a structure that actively rotates the fan 112, which greatly simplifies the structure. Among them, the shape of the ventilation hole 121 of the anti-sand cover 12 is one of a circle, an ellipse and a diamond.
[0045] like Figure 4 and Figure 5 As shown, in order to fix the fan 112, the sand-proof plate 11 further includes a bracket 113, and each sand-proof hole 111 is provided with a bracket 113, and the bracket 113 includes a fixing portion 1132 and a supporting portion 1131, the fixing portion 1132 is fixedly connected to the sand-proof plate 11, and the supporting portion 1131 extends along the radial direction of the sand-proof hole 111, and the fan 112 is rotatably arranged on the supporting portion 1131. The supporting portion 1131 is used to support the fan 112 and enable the fan 112 to rotate around the axis of the sand-proof hole 111, and the fixing portion 1132 can be fixedly connected to the sand-proof plate 11.
[0046] Furthermore, the support portion 1131 is provided with a plurality of fixing portions 1132 at intervals along the circumferential direction. The plurality of fixing portions 1132 are arranged at intervals, which can not only improve the stability of the bracket 113, but also avoid blocking the flow of air and ensure the ventilation of the sand-proof assembly 1. Specifically, the plurality of fixing portions 1132 are arranged at equal intervals along the circumference of the support portion 1131 to ensure that the support portion 1131 is subjected to balanced force and avoid affecting the service life.
[0047] In this embodiment, each bracket 113 is provided with three fixing portions 1132, and the angle between two of the three fixing portions 1132 is 120°. In other embodiments, each bracket 113 may also be provided with four, six or eight fixing brackets.
[0048] like Figure 4 and Figure 5 As shown, the sand-proof hole 111 includes a large-diameter section 1111 and a small-diameter section 1112 that are connected. The large-diameter section 1111 is located on a side close to the sand-proof cover 12. The fan 112 is rotatably arranged in the large-diameter section 1111, and the orthographic projection of the fan 112 along the rotation axis direction covers the small-diameter section 1112. The large-diameter section 1111 can accommodate the fan 112, ensuring that the fan 112 does not protrude from the surface of the sand-proof plate 11, and making the coverage area of the fan 112 larger than the cross-sectional area of the small-diameter section 1112, which also shows that the fan 112 can block the sand and dust within the projection range of the cross-sectional area of the small-diameter section 1112 when rotating, thereby playing a role in blocking the sand and dust from passing through the sand-proof plate 11.
[0049] It is worth noting that the fixing portion 1132 is fixedly connected to the inner wall of the small-diameter section 1112 to ensure that the bracket 113 does not protrude from the surface of the sand-proof plate 11 .
[0050] Preferably, the inner diameter of the large diameter section 1111 gradually increases in the direction approaching the sand cover 12. That is to say, the inner wall of the large diameter section 1111 is inclined, and when the sand and dust are thrown to the inner wall of the large diameter section 1111 under the centrifugal action of the fan 112, they can slide down along the inner wall of the large diameter section 1111 to between the sand protection plate 11 and the sand protection cover 12, which can prevent the sand and dust from accumulating in the sand protection hole 111, and the above-mentioned inclined direction can prevent the sand and dust from sliding to the side of the sand protection plate 11 away from the sand protection cover 12 and entering the box.
[0051] In this embodiment, the sand shield 12 is spaced apart from the bottom surface of the ventilation window 21. When sand and dust slide down the inner wall of the large diameter section 1111, they will fall to the bottom surface of the ventilation window 21 through the gap between the sand shield 12 and the sand plate 11. Maintenance personnel can sweep the sand and dust away through the gap between the sand shield 12 and the bottom surface of the ventilation window 21 without removing the sand shield 12, which is convenient for operation.
[0052] like Figure 2As shown, the ventilation window 21 on the door body 2 is a stepped structure, the sand-proof cover 12 is fixedly arranged on the step of the ventilation window 21 , and the sand-proof plate 11 is arranged at the rear end of the ventilation window 21 to ensure that there is a gap between the sand-proof cover 12 and the sand-proof plate 11 .
[0053] Furthermore, the bottom surface of the ventilation window 21 is inclined downward in the direction from the sand-proof plate 11 to the sand-proof cover 12. When sand and dust fall on the bottom surface of the ventilation window 21, they will slide down along the inclined bottom surface, preventing sand and dust from accumulating on the bottom surface of the ventilation window 21 and blocking the gap between the sand-proof cover 12 and the bottom surface of the ventilation window 21, thereby greatly reducing the frequency of maintenance and reducing the work intensity of maintenance personnel.
[0054] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.
Claims
1. A sand-proof component, characterized in that: include: A sand-proof plate (11), wherein the sand-proof plate (11) is provided with a plurality of sand-proof holes (111), and a fan (112) is rotatably arranged in each of the sand-proof holes (111); A sand-proof cover (12) is arranged at a distance from the sand-proof plate (11) and is located in front of the sand-proof plate (11). The sand-proof cover (12) is provided with a plurality of ventilation holes (121).
2. The sand-proof assembly according to claim 1, characterized in that: The sand-proof hole (111) comprises a large-diameter section (1111) and a small-diameter section (1112) which are connected to each other; the large-diameter section (1111) is located on a side close to the sand-proof cover (12); the fan (112) is rotatably arranged in the large-diameter section (1111); and the orthographic projection of the fan (112) along the direction of the rotation axis covers the small-diameter section (1112).
3. The sand-proof assembly according to claim 2, characterized in that: The inner diameter of the large-diameter section (1111) gradually increases in a direction approaching the sand-proof cover (12).
4. The sand-proof assembly according to claim 1, characterized in that: The shape of the ventilation hole (121) is one of a circle, an ellipse and a diamond.
5. The sand-proof assembly according to any one of claims 1 to 4, characterized in that: The sand-proof plate (11) further comprises a bracket (113), each of the sand-proof holes (111) is provided with the bracket (113), the bracket (113) comprises a fixing portion (1132) and a supporting portion (1131), the fixing portion (1132) is fixedly connected to the sand-proof plate (11), the supporting portion (1131) extends in a radial direction of the sand-proof hole (111), and the fan (112) is rotatably provided on the supporting portion (1131).
6. The sand-proof assembly according to claim 5, characterized in that: The support portion (1131) is provided with a plurality of fixing portions (1132) spaced apart along the circumferential direction.
7. A sand-proof door panel, characterized in that: The invention comprises the anti-sand component according to any one of claims 1 to 6, and further comprises a door body (2), wherein the door body (2) is provided with a ventilation window (21), and the anti-sand component is arranged in the ventilation window (21).
8. The anti-sand door panel according to claim 7, characterized in that: The sand-proof cover (12) is spaced apart from the bottom surface of the ventilation window (21).
9. The anti-sand door panel according to claim 8, characterized in that: The bottom surface of the ventilation window (21) is inclined downward in a direction from the sand-proof plate (11) to the sand-proof cover (12).
10. An outdoor cabinet, characterized in that: The invention comprises the anti-sand door plate according to any one of claims 7 to 9, and further comprises a box body, wherein the box body is provided with an opening, and the anti-sand door plate is arranged in the box body and can open or close the opening.