Sunshade device and electrical equipment

Abstract

The application discloses a sunshade device and electrical equipment, and belongs to the electrical equipment. The sunshade device is arranged on a transformer. The sunshade device comprises a sunshade plate provided with a ventilation window. At least part of the ventilation window is arranged opposite to a heat dissipation fin group of the transformer in a first direction. The first direction is a height direction of the transformer. Most of the sunlight directly irradiating the transformer is blocked by the sunshade plate. Since the sunshade plate does not shield the periphery of the transformer, the space around the transformer is released. Therefore, the heat dissipation fins can be fully heat-exchanged with the air around the heat dissipation fins on one hand, and the up and down air flow can be realized through the ventilation window on the other hand, so that the speed of natural heat dissipation is increased, and the transformer is maintained in a stable working temperature range, thereby helping the normal operation of the transformer.

Description

[0001] This application claims priority to Chinese Patent Application No. 2025201759287, filed on January 27, 2025, entitled “Sunshade Device and Electrical Equipment”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of electrical equipment technology, specifically relating to a sunshade device and electrical equipment. Background Technology

[0003] A transformer is an electrical device used to transfer electrical energy between different voltage levels. It converts one voltage to another through the principle of electromagnetic induction to meet the power needs of different devices and systems.

[0004] Existing transformers typically require shading structures to reduce direct sunlight exposure and prevent adverse effects on their working environment or materials. However, current shading structures can hinder the natural heat dissipation of the transformer's external heat sinks, leading to increased transformer temperature and impacting normal operation. Utility Model Content

[0005] This application provides a sunshade device to solve the technical problem that the sunshade structure easily affects the natural heat dissipation of the heat sink on the outside of the transformer, resulting in an increase in transformer temperature; another objective of this application is to provide an electrical device.

[0006] Technical solution: The sunshade device described in this application embodiment is used to be installed on a transformer, and the sunshade device includes:

[0007] The shield is provided with ventilation windows, and at least a portion of the ventilation windows is disposed opposite to the heat sink assembly of the transformer in a first direction, the first direction being the height direction of the transformer.

[0008] The sunshade device in this embodiment blocks most of the direct sunlight from reaching the transformer. Since the sunshade leaves the transformer unobstructed, the space around the transformer is freed up, allowing the heat sink to exchange heat effectively with the surrounding air. Furthermore, the ventilation windows facilitate airflow, increasing the rate of natural heat dissipation and maintaining the transformer within a stable operating temperature range, thus contributing to its normal operation. In addition, the ventilation windows reduce the weight of the sunshade and facilitate assembly.

[0009] In some embodiments, the number of ventilation windows is provided to be multiple, and the transformer includes multiple heat sink groups, with each ventilation window corresponding to at least one heat sink group, or each heat sink group corresponding to at least one ventilation window.

[0010] In some embodiments, the orthographic projection of the heat sink assembly along the first direction onto the shield falls into the ventilation window.

[0011] In some embodiments, the shading device further includes a plurality of blades, which are disposed opposite to the ventilation window and adjacent blades are spaced apart. The blades are connected to the shading plate, and the orthogonal projection of the plurality of blades on the shading plate along the first direction at least partially falls into the ventilation window.

[0012] In some embodiments, the ventilation window extends along a second direction, and a plurality of the blades are spaced apart along the second direction, the second direction intersecting the first direction;

[0013] The orthographic projection of the transformer along the first direction onto the shield falls into the ventilation window.

[0014] In some embodiments, the ventilation window includes a plurality of ventilation units arranged along the second direction, with adjacent ventilation units separated by stiffeners, and each ventilation unit corresponding to the blade.

[0015] In some embodiments, the blade includes a first segment and a second segment, the first segment being connected to the baffle, the second segment being connected to the side of the first segment away from the baffle, and the second segment being arranged at an angle to the first direction.

[0016] In some embodiments, the blades are arranged at an angle to the first direction.

[0017] In some embodiments, a plurality of the blades are arranged in a row at intervals along a second direction, the blades extend along a third direction, the third direction intersects the first direction and the second direction, the sunshade device includes multiple rows of the blades, the multiple rows of the blades are arranged at intervals along the first direction, and the blades of adjacent rows are staggered along the second direction.

[0018] In some embodiments, at least a portion of the blade is located on the side of the shield away from the transformer, or at least a portion of the blade is located on the side of the shield facing the transformer.

[0019] In some embodiments, the ventilation window is shaped like an ellipse or a polygon.

[0020] In some embodiments, the shield is arranged at an angle to the first direction;

[0021] Alternatively, the shield extends along an arc-shaped trajectory;

[0022] Alternatively, the shield may include a first plate and a second plate connected to each other, with the first plate and the second plate arranged at an angle.

[0023] Accordingly, a sunshade device described in this application embodiment is used to be installed on a transformer. The sunshade device includes a shading plate. The orthographic projection of the shading plate along a first direction can at least partially cover the transformer, and the orthographic projection is separate from or partially overlaps with the heat sink assembly of the transformer.

[0024] The shading device in this embodiment of the application achieves shading of the main body of the transformer through the relative position between the shading plate and the transformer, and provides sufficient airflow space for the heat sink assembly to facilitate ventilation and heat dissipation, thereby keeping the transformer within a stable operating temperature range and contributing to the normal operation of the transformer. Since the orthogonal projection of the shading plate is mainly used to cover the main body of the transformer, the size of the shading plate is reduced, which helps to save the space occupied by the shading plate.

[0025] Accordingly, an electrical device described in the embodiments of this application includes:

[0026] transformer;

[0027] The aforementioned sunshade device.

[0028] In some embodiments, the electrical equipment further includes a fixing structure that connects the sunshade device and the transformer respectively, so that the sunshade device is fixed above the transformer along a first direction;

[0029] Alternatively, the fixing structure may be disposed on at least one side of the transformer, and the sunshade device may be disposed on the fixing structure.

[0030] In some embodiments, the electrical equipment further includes a frame, the transformer is disposed within the frame, and the sunshade device is disposed on the frame.

[0031] In some embodiments, the electrical equipment further includes a bracket that connects the sunshade device and the frame, respectively.

[0032] In some embodiments, the frame is provided with a plurality of columns, and the sunshade device is connected to the columns.

[0033] In some embodiments, the frame includes a plurality of compartments arranged along a second direction, with adjacent compartments separated from each other, and the transformer disposed in one of the compartments;

[0034] At least the compartment corresponding to the transformer is provided with the sunshade device, or each compartment is provided with at least one sunshade device.

[0035] In some embodiments, the electrical equipment further includes a canopy disposed on the sunshade device, wherein the canopy and the sunshade device at least partially overlap in orthographic projection along a first direction.

[0036] The electrical equipment in this application includes the sunshade device described above, and therefore can have all the technical features and beneficial effects of the sunshade device described above. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the sunshade device provided in the embodiments of this application;

[0039] Figure 2 A top view of the sunshade device provided in the embodiments of this application;

[0040] Figure 3 This is a schematic diagram of the structure of the blades and ventilation windows provided in the embodiments of this application;

[0041] Figure 4 A schematic diagram showing the relative positions of the blades and ventilation windows provided in an embodiment of this application;

[0042] Figure 5 This is a schematic diagram showing another relative position of the blades and ventilation windows provided in an embodiment of this application;

[0043] Figure 6 Another structural schematic diagram of the ventilation window provided in the embodiments of this application;

[0044] Figure 7 This is a schematic diagram of the structure of the blades and ventilation unit provided in the embodiments of this application;

[0045] Figure 8 A schematic diagram showing the relative positions of the blades and the ventilation unit provided in an embodiment of this application;

[0046] Figure 9 This is another schematic diagram showing the relative positions of the blades and the ventilation unit provided in an embodiment of this application;

[0047] Figure 10 This is another structural schematic diagram of the blade provided in an embodiment of this application;

[0048] Figure 11 This is another structural schematic diagram of the blades and ventilation unit provided in the embodiments of this application;

[0049] Figure 12 This is another structural schematic diagram of the blade provided in an embodiment of this application;

[0050] Figure 13 This is another structural schematic diagram of the blade provided in an embodiment of this application;

[0051] Figure 14 This is a schematic diagram of the structure of a ventilation window provided in an embodiment of this application;

[0052] Figure 15 Another structural schematic diagram of the ventilation window provided in the embodiments of this application;

[0053] Figure 16 Another structural schematic diagram of the ventilation window provided in the embodiments of this application;

[0054] Figure 17 Another structural schematic diagram of the ventilation window provided in the embodiments of this application;

[0055] Figure 18 Another structural schematic diagram of the ventilation window provided in the embodiments of this application;

[0056] Figure 19 Another structural schematic diagram of the ventilation window provided in the embodiments of this application;

[0057] Figure 20 A structural schematic diagram of the frame, columns, and shield provided in an embodiment of this application;

[0058] Figure 21 This is another structural schematic diagram of the shield provided in an embodiment of this application;

[0059] Figure 22 This is another structural schematic diagram of the shield provided in an embodiment of this application;

[0060] Figure 23 This is a schematic diagram of the structure of the frame and shield provided in the embodiments of this application;

[0061] Figure 24 Another structural schematic diagram of the frame and shield provided in the embodiments of this application;

[0062] Figure 25 Another structural schematic diagram of the frame and shield provided in the embodiments of this application;

[0063] Figure 26 Another structural schematic diagram of the frame and shield provided in the embodiments of this application;

[0064] Figure 27 Another structural schematic diagram of the frame and shield provided in the embodiments of this application;

[0065] Figure 28 This is another structural schematic diagram of the shield provided in an embodiment of this application;

[0066] Figure 29 This is a schematic diagram of the structure of the shield and bracket provided in the embodiments of this application;

[0067] Figure 30 This is another structural schematic diagram of the shield and bracket provided in the embodiments of this application;

[0068] Figure 31 A schematic diagram of the ceiling provided in an embodiment of this application;

[0069] Reference numerals: 1. Sheath; 10. Ventilation window; 101. Ventilation unit; 102. Rib; 11. First plate; 12. Second plate; 2. Blade; 21. First section; 22. Second section; 3. Frame; 30. Cabin; 31. Partition; 4. Column; 5. Transformer; 51. Heat sink assembly; 6. Fixing structure; 7. Support; 8. Roof. Detailed Implementation

[0070] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0071] In the description of this application, it should be understood that the terms "height," "thickness," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, and "at least one" can mean one, two, or more, unless otherwise expressly specified.

[0072] It should also be noted that in the accompanying drawings of the embodiments of this application, the arrow marked X represents the first direction X, the arrow marked Y represents the second direction Y, and the arrow marked Z represents the third direction Z. The first direction X, the second direction Y, and the third direction Z are introduced to more clearly illustrate the structure and relative positional relationship of each component in the sunshade device. In practical applications, the first direction X, the second direction Y, and the third direction Z may change depending on the placement of the sunshade device.

[0073] As a preamble to the embodiments of this application, the sunshade structure above the transformer is usually a full-coverage canopy. A full-coverage canopy means that in addition to completely covering the top of the transformer, the canopy also fully or partially covers the outer periphery of the transformer. For oil-fired transformers, since the canopy is close to the heat sink of the transformer, it will affect the natural heat dissipation of the heat sink of the oil-fired transformer, resulting in an increase in transformer temperature and affecting the normal operation of the transformer.

[0074] Please combine them together Figure 1 and Figure 2 The sunshade device of this application embodiment is used to be installed on the transformer 5. The sunshade device includes a shading plate 1. The shading plate 1 has a ventilation window 10. The ventilation window 10 is arranged through the thickness direction of the shading plate 1. In the first direction X, at least a part of the ventilation window 10 is arranged opposite to the heat sink assembly 51 of the transformer 5. That is, the heat sink assembly 51 has a positive projection on the shading plate 1 along the first direction X, and at least a part of the positive projection falls into the ventilation window 10. The first direction X corresponds to the height direction of the transformer 5.

[0075] The heat sink assembly 51 includes a plurality of spaced-apart fins connected to the housing of the transformer 5 and extending along a first direction X.

[0076] The shield 1 is located above the transformer 5 and has a plate-like structure. The orthographic projection of the shield 1 along the first direction X can cover the transformer 5 to ensure the shading effect of the transformer 5. At the same time, the orthographic projections of the shield 1 and the transformer 5 along the second direction Y on the same plane are spaced apart from each other. The second direction Y intersects with the first direction X, so that the space of the heat sink assembly 51 on the outer periphery of the transformer 5 is not blocked by the shield 1. In the vertical direction, the heat sink assembly 51 can also achieve airflow through the ventilation window 10. This provides the heat sink assembly 51 with sufficient heat exchange space. Compared with the full-shading shading structure, it can accelerate the natural heat dissipation speed of the heat sink assembly 51 to prevent the transformer 5 from overheating and thus maintain the normal operation of the transformer 5.

[0077] Please combine them together Figure 1 and Figure 2In some embodiments, the number of ventilation windows 10 is multiple, and the transformer 5 includes multiple heat sink groups 51. Each ventilation window 10 corresponds to at least one heat sink group 51, meaning there can be a one-to-one correspondence between the ventilation window 10 and the heat sink group 51. At least a portion of each ventilation window 10 is positioned opposite to the heat sink group 51 in the first direction X. Alternatively, each ventilation window 10 can correspond to multiple heat sink groups 51. In this case, the ventilation window 10 extends along the arrangement direction of the multiple heat sink groups 51 to ensure their relative relationship in the first direction X. For example, two heat sink groups 51 are located on two adjacent outer surfaces of the transformer 5 casing, and the two heat sinks are approximately L-shaped. In this case, the ventilation window 10 extends along the L-shaped trajectory. The multiple ventilation windows 10 cooperate with the multiple heat sink groups 51 to accelerate the heat exchange rate with the external environment, thereby improving the heat dissipation effect on the transformer 5.

[0078] Please combine them together Figure 1 and Figure 2 In some embodiments, the number of ventilation windows 10 is set to multiple. The transformer 5 includes multiple heat sink groups 51, and each heat sink group 51 corresponds to at least one ventilation window 10. That is, the ventilation window 10 and the heat sink group 51 can be in a one-to-one correspondence. At least a part of each ventilation window 10 is arranged opposite to the heat sink group 51 in the first direction X. Alternatively, each heat sink group 51 can correspond to multiple ventilation windows 10. In this case, the size or shape requirements of the heat sink group 51 are met by multiple ventilation windows 10. The multiple ventilation windows 10 are spaced apart, which can relatively increase the solid part of the shield 1 and ensure the strength of the shield 1.

[0079] Please combine them together Figure 1 and Figure 2 In some embodiments, the orthographic projection of the heat sink assembly 51 along the first direction X onto the baffle 1 falls into the ventilation window 10. That is, in the first direction X, the heat sink assembly 51 and the baffle 1 have a first orthographic projection and a second orthographic projection respectively on the same plane. The inner contour of the ventilation window 10 in the second orthographic projection is distributed around the outer periphery of the first orthographic projection. Each part of the heat sink assembly 51 can have vertical airflow through the ventilation window 10, so that the air flows evenly between the fins, which helps to maintain the uniformity of heat distribution of the heat sink assembly 51.

[0080] Please combine them together Figure 3 , Figure 4 and Figure 5In some embodiments, the shading device further includes a plurality of blades 2, which are disposed opposite to the ventilation window 10, with adjacent blades 2 spaced apart to allow air to circulate through the gaps between the blades 2. The blades 2 are connected to a shading plate 1, and the plurality of blades 2 have orthographic projections on the shading plate 1 along a first direction X, with at least a portion of these orthographic projections falling into the ventilation window 10. That is, the orthographic projections of the plurality of blades 2 can partially or completely cover the ventilation window 10. The blades 2 block direct sunlight from reaching the heat sink assembly 51, reducing the impact of heat radiation on the heat sink assembly 51 and thus maintaining the high heat exchange efficiency of the heat sink assembly 51.

[0081] The arrangement of blade 2 opposite to ventilation window 10 can be understood as follows: part of blade 2 is located inside ventilation window 10, or the entire blade 2 is located inside ventilation window 10, or blade 2 is located on the outer periphery of ventilation window 10.

[0082] In this embodiment, multiple blades 2 are arranged at intervals along the extension direction of the ventilation window 10. For example, the ventilation window 10 has a distinct long side and a wide side, and the multiple blades 2 are arranged at intervals along the long side of the ventilation window 10. In some other embodiments, when the ventilation window 10 extends in an L-shape, the arrangement trajectory of the multiple blades 2 is also L-shaped. Alternatively, the multiple blades 2 can also be arranged perpendicular to the extension direction of the ventilation window 10. For example, the ventilation window 10 has a distinct long side and a wide side, and the multiple blades 2 are arranged at intervals along the wide side of the ventilation window 10. In this case, each blade 2 can extend along the long side of the ventilation window 10. Alternatively, the multiple blades 2 can be divided into multiple groups, and the multiple groups of blades 2 are arranged sequentially along the long side of the ventilation window 10, with the multiple blades 2 in each group arranged at intervals along the width of the ventilation window 10.

[0083] Please refer to Figure 6 In some embodiments, the ventilation window 10 extends along the second direction Y, and multiple blades 2 are arranged at intervals along the second direction Y. The second direction Y intersects with the first direction X. The orthographic projection of the transformer 5 along the first direction X onto the shield 1 falls into the ventilation window 10. The cross-sectional area of ​​the ventilation window 10 is larger than the maximum cross-sectional area of ​​the transformer 5, so that the heat sink assembly 51 is positioned opposite to the ventilation window 10 in the first direction X, which fully ensures the airflow of the heat sink assembly 51 in the vertical direction, and takes into account both the needs of sunshade and ventilation.

[0084] Please combine them together Figure 7 , Figure 8 and Figure 9In some embodiments, the ventilation window 10 includes multiple ventilation units 101 arranged along the second direction Y. Adjacent ventilation units 101 are separated by stiffeners 102. Each ventilation unit 101 is a hollow space between the stiffeners 102. The stiffeners 102 are connected to the baffle 1. Each ventilation unit 101 corresponds to a blade 2, which is connected to the stiffener 102 so that the blade 2 is connected to the baffle 1 via the stiffener 102. Because the ventilation units 101 are separated by the stiffeners 102, each ventilation unit 101 is relatively independent. Therefore, among the multiple ventilation units 101, some ventilation units 101 have a correspondence with the heat sink assembly 51 in the first direction X. In other embodiments, the blade 2 may be partially located within the ventilation unit 101, or the blade 2 may be entirely located within the ventilation unit 101.

[0085] The projection of the blade 2 along the first direction X onto the shield 1 can cover part or all of the corresponding ventilation unit 101. Therefore, air can circulate freely through each ventilation unit 101, while direct sunlight is partially or completely blocked by the blade 2, reducing the direct impact on the heat sink assembly 51 on the transformer 5. In addition, the stiffener 102 increases the strength and stability of the shield 1 and reduces the possibility of deformation of the stiffener 102.

[0086] Please refer to Figure 7 In some embodiments, the blade 2 includes a first segment 21 and a second segment 22. The first segment 21 is connected to the shield 1, and the second segment 22 is connected to the side of the first segment 21 away from the shield 1. The second segment 22 is set at an angle to the first direction X, such that the second segment 22 is inclined to the first segment 21. Specifically, the first segment 21 is a straight segment and extends along the first direction X. The first segment 21 is connected to the stiffener 102, which indirectly connects it to the shield 1. The vertical distance between the second segment 22 and the shield 1 in the first direction X increases in the direction away from the shield 1. The shading effect of the blade 2 is mainly achieved by the second segment 22.

[0087] Please refer to Figure 4 In some other embodiments, the first segment 21 may also be directly connected to the shield 1 and separated from the ventilation window 10 or ventilation unit 101.

[0088] Please combine them together Figure 3 and Figure 9 Alternatively, the first segment 21 may also be partially located within the ventilation window 10 or ventilation unit 101 and connected to the shield 1.

[0089] Please combine them together Figure 5 and Figure 8 Alternatively, the first segment 21 can be entirely located within the ventilation window 10 or ventilation unit 101 and connected to the shield 1.

[0090] In addition, the blade 2 can also be divided into other different numbers of segments. By combining multiple segments, the shape of the blade 2 can be diversified to meet the needs of guiding airflow and the needs of different shading ranges of the ventilation window 10.

[0091] Please combine them together Figure 10 and Figure 11 In some embodiments, the blade 2 is arranged at an angle to the first direction X, that is, the blade 2 is inclined to the baffle 1. The blade 2 can be directly connected to the baffle 1, or it can be connected to the stiffener 102, achieving an indirect connection with the baffle 1 through the stiffener 102. Similarly, the blade 2 can be partially located inside the ventilation window 10 or the ventilation unit 101, or it can be entirely located inside the ventilation window 10 or the ventilation unit 101, or it can be entirely located outside the ventilation window 10 or the ventilation unit 101. The structure of the blade 2 is relatively simple and can directly guide the airflow to maintain a relatively stable and uniform ventilation effect.

[0092] Please refer to Figure 12 In some embodiments, multiple blades 2 are arranged in a row at intervals along the second direction Y, and the blades 2 extend along the third direction Z, which intersects the first direction X and the second direction Y. The shading device includes multiple rows of blades 2, which are arranged at intervals along the first direction X, and adjacent rows of blades 2 are staggered along the second direction Y. That is, in two adjacent rows of blades 2, one row of blades 2 forms multiple first orthographic projections arranged at intervals along the second direction Y on the projection plane along the first direction X, and the other row of blades 2 forms multiple second orthographic projections arranged at intervals along the second direction Y on the same projection plane along the first direction X. The first orthographic projections and the second orthographic projections are arranged alternately. In this embodiment, the two ends of the first orthographic projection are connected to the second orthographic projections on both sides. By covering the ventilation window 10 with multiple rows of blades 2, the natural airflow can be achieved through the gaps between the blades 2, and the shading effect can also be achieved. In addition, some falling foreign objects can be supported by the blades 2 to prevent them from falling directly onto the transformer 5.

[0093] In some other embodiments, in each row of blades 2, the distance between two adjacent blades 2 can be greater than the length of the blade 2 along the second direction Y, or the distance between two adjacent blades 2 can be less than the length of the blade 2 along the second direction Y. Correspondingly, the adjacent first orthographic projections and second orthographic projections are arranged at intervals or partially overlap.

[0094] Please combine them together Figure 10 , Figure 11 and Figure 13In some embodiments, at least a portion of the blade 2 is located on the side of the shield 1 away from the transformer 5, or at least a portion of the blade 2 is located on the side of the shield 1 facing the transformer 5. Specifically, the portion of the blade 2 located outside the shield 1 is inclined. Furthermore, the blade 2 can be partially inclined or entirely inclined, and the direction of inclination can be either upward or downward, extending away from the shield 1, so that the inclined portion is located above or below the shield 1. Different inclination directions of the blade 2 can provide different airflow effects and different shading areas, meeting the usage requirements of the transformer 5 under different operating conditions.

[0095] Please combine them together Figures 14 to 19 In some embodiments, the ventilation window 10 is shaped like an ellipse or a polygon. When the ventilation window 10 is polygonal, it can be rectangular, parallelogram, trapezoidal, pentagonal, or hexagonal. To improve the heat exchange efficiency of the heat sink assembly 51, the maximum length of each shape can be no less than the maximum length of the corresponding heat sink assembly 51, and the maximum width of each shape can be no less than the maximum width of the corresponding heat sink assembly 51. Different shapes of the ventilation window 10 can affect airflow, sunlight incidence angle, effective window area, etc., helping to meet different practical use and design requirements.

[0096] Please refer to Figure 20 In some embodiments, the shield 1 is set at an angle to the first direction X, that is, the shield 1 is in an inclined state, which helps rainwater and other forms of precipitation to flow away quickly and prevents moisture from accumulating above the transformer 5.

[0097] Please refer to Figure 21 Alternatively, the shield 1 extends along an arc-shaped trajectory, making the shield 1 as a whole arched. On the one hand, it can block sunlight from different angles, and on the other hand, it can better disperse and withstand external pressure, protecting the transformer 5.

[0098] Please refer to Figure 22 Alternatively, the shield 1 includes a first plate 11 and a second plate 12 connected to each other, with the first plate 11 and the second plate 12 arranged at an angle. In this case, the shield 1 is generally shaped like a V, which has a simple structure, is easy to process, and can also accelerate the falling of rainwater.

[0099] Please refer to Figures 28 to 30 Accordingly, this application provides a sunshade device for mounting on a transformer 5. The sunshade device includes a shading plate 1. The orthographic projection of the shading plate 1 along a first direction X can at least partially cover the transformer 5, and the orthographic projection is separate from or partially overlaps with the heat sink assembly 51 of the transformer 5. The first direction X corresponds to the height direction of the transformer 5.

[0100] The transformer 5 includes a main body and a heat sink assembly 51. When the transformer 5 is an oil-immersed transformer, its main body includes windings and a housing, with insulating oil stored inside the housing, and the windings immersed in the insulating oil. When the transformer 5 is a dry-type transformer, its main body includes windings, a housing, and a heat dissipation structure disposed within the housing. A shielding plate 1 is arranged at intervals along a first direction X with the transformer 5. In the first direction X, the downward orthogonal projection of the shielding plate 1 can partially or completely cover the main body to provide shade and reduce the impact of direct sunlight on the transformer 5. The downward orthogonal projection of the shielding plate 1 does not overlap with or partially overlaps with the heat sink assembly 51. In the case of partial overlap, the overlapping area is much smaller than the area of ​​the heat sink assembly 51's orthogonal projection along the first direction X. In this embodiment, it is preferable that the orthogonal projection of the shielding plate 1 does not overlap with the heat sink assembly 51, providing sufficient heat exchange space for the heat sink assembly 51 to improve its heat dissipation performance.

[0101] Understandably, since the shield 1 partially blocks the transformer 5 and the heat sink assembly 51 is exposed, the surrounding area of ​​the shield 1 can be used as a window area. This window area can be an open space or a semi-enclosed space enclosed by the other components.

[0102] Please combine them together Figures 23 to 27 Accordingly, the electrical equipment provided in this application includes a transformer 5 and the sunshade device described in the above embodiment. The sunshade device is disposed above the transformer 5, serving two purposes: firstly, to block most of the direct sunlight from reaching the transformer 5; and secondly, to enable ventilation and heat dissipation of the heat sink assembly 51 of the transformer 5 in all directions and vertically. This electrical equipment can possess all the technical features and beneficial effects of the aforementioned sunshade device, which will not be elaborated upon here.

[0103] Please refer to Figure 28The electrical equipment also includes a fixing structure 6, which connects the shading device and the transformer 5 respectively, so that the shading device is fixed above the transformer 5 along the first direction X. Alternatively, the fixing structure 6 is located on at least one side of the transformer 5, and the shading device is connected to the fixing structure 6. In this case, there can be one or more fixing structures 6, which support or fix to the periphery of the transformer 5, and the shading plate 1 is connected to the top of the fixing structure 6 to form a shading for the transformer 5. On the one hand, the fixing structure 6 can separate the shading plate 1 from the main body to avoid interference between the shading plate 1 and the structure on the main body, so that the shading device only blocks the main body of the transformer 5, and the space between the shading plate 1 and the main body allows the heat sink assembly 51 to be placed in the external airflow, simplifying the structure of the shading device. On the other hand, the fixing structure 6 can be of a variety of designs, so that the shading device can be designed according to different structures and different spaces where the transformer 5 is located, so that the heat sink assembly 51 has sufficient ventilation area. In addition, the shading plate 1 is connected to the main body through the fixing structure 6, so that when the shading plate 1 is adjusted, it can avoid the transformer 5, reducing interference to the transformer 5.

[0104] The fixing structure 6 can be a rod, plate, stamped part, sheet metal part, or bent part, and it can be fixed to the transformer 5 and the shield 1 by means of screws, bolts, welding, snap-fit ​​connection, etc. For example, the fixing structure 6 is a rod, which is set on the housing of the transformer 5 and extends upward along the first direction X. The shield 1 is connected to the top of the rod, thereby forming a certain flow space between the shield 1 and the transformer 5 to allow airflow to carry away the heat of the heat sink assembly 51.

[0105] Please refer to Figure 28 For example, the fixing structure 6 is a rod, and the number of rods is set to multiple. The multiple rods are arranged around the outer periphery of the transformer 5 and avoid each other from the heat sink assembly 51. The rods extend upward along the first direction X and pass over the transformer 5. The shield 1 is connected to the top of the multiple rods. Alternatively, the number of rods is a single rod, which extends upward along the first direction X. The shield 1 is connected to the top side of the rod. In this case, the shield 1 and the rod form an L-shaped structure, similar to an L-shaped bending structure. Therefore, an L-shaped bending member can be used to simultaneously avoid the transformer and provide sunshade to the main body of the transformer. In this case, part of the bending member is used for fixing, and the other part can be used to set ventilation windows 10, or only cover the main body of the transformer. In addition, the bending member can also be of other shapes, which can be determined according to factors such as the size of the transformer, the size of the space, and the distribution of the surrounding structures of the transformer.

[0106] Please combine them together Figures 23 to 27In some embodiments, the electrical equipment also includes a frame 3, with the transformer 5 housed within the frame 3 and a sunshade device mounted on the frame 3. The frame 3 is mainly assembled from sheet metal parts or profiles into a three-dimensional structure, which serves to protect the transformer 5 from compression. At the same time, the frame 3 structure also forms an opening area for ventilation and heat dissipation of the heat sink assembly 51.

[0107] In some other embodiments, an intermediate partition layer may be provided between the shield 1 and the transformer 5. The intermediate partition layer may be a plate-like structure at the top of the frame 3. The intermediate partition layer has an opening structure at the ventilation window 10 position on the corresponding shield 1. The opening structure is connected to the ventilation window 10 so that the heat generated by the transformer 5 can flow from the top.

[0108] Please combine them together Figure 29 and Figure 30 In some embodiments, the electrical equipment further includes a bracket 7, which connects the sunshade device and the frame 3 respectively. At least one side of the sunshade device and the top edge of the frame 3 form a window area to allow airflow to pass vertically. The bracket 7 and the sunshade device are arranged along a first direction X such that the orthographic projections of the bracket 7 and the sunshade device in the first direction X overlap, and this overlapping area mainly covers the main body of the transformer 5.

[0109] Please refer to Figure 29 For example, the bracket 7 includes two spaced-apart crossbars that overlap the top of the frame 3, and a cover plate 1 is connected to the two crossbars. A window area is formed between the outer periphery of the cover plate 1 and the top edge of the frame 3, and the crossbars are also located within this window area. The heat sink assembly 51 is disposed opposite to the window area.

[0110] Please refer to Figure 30 For example, the bracket 7 includes two spaced-apart crossbars that overlap the top of the frame 3. Each crossbar is connected to a cover plate 1 via a support rod, so that the cover plate 1 is suspended on the crossbars. A window area is formed between the outer periphery of the cover plate 1 and the top edge of the frame 3, and the crossbars are also located within this window area. The heat sink assembly 51 is disposed opposite to the window area.

[0111] The position of the bracket 7 can be adjusted according to the position of the heat sink assembly 51, so that the bracket 7 avoids the heat sink assembly 51 as much as possible. For example, when the heat sink assembly 51 is arranged at intervals along the third direction Z, the bracket 7 can be arranged along the second direction Y; when the heat sink assembly 51 is arranged at intervals along the second direction Y, the bracket 7 can be arranged along the third direction Z. By fixing the sunshade device with the bracket 7, the sunshade device can be directly positioned corresponding to the core winding of the transformer 5, eliminating the need for a large area of ​​sunshade device to block the core winding area of ​​the transformer 5. This ensures that the heat sink assembly 51 has sufficient airflow space, simplifies the structure of the sunshade device, and saves space occupied by the sunshade device.

[0112] In some other embodiments, the sunshade device can also be directly mounted on the frame 3, as long as the orthographic projection of the sunshade device in the first direction X does not overlap with the heat sink assembly 51.

[0113] Please combine them together Figures 20 to 22 In some embodiments, the frame 3 is provided with multiple columns 4, and the sunshade device is connected to the columns 4. Specifically, the columns 4 extend along the first direction X, and the shading plate 1 is connected to the end of the column 4 away from the frame 3. The columns 4 increase the distance between the shading plate 1 and the transformer 5, so that the space between the shading plate 1 and the transformer 5 is released, so as to prevent the heat of the heat sink assembly 51 from accumulating in the limited space.

[0114] Please combine them together Figures 23 to 27 In some embodiments, the frame 3 includes multiple compartments 30 arranged along the second direction Y, with adjacent compartments 30 separated by partitions 31 connected to the frame 3. The transformer 5 is housed in one of the compartments 30, while the remaining compartments 30 can be used to house inverters, distribution cabinets, ring main units, and other devices, facilitating increased integration of electrical equipment. At least the compartment 30 corresponding to the transformer 5 is equipped with a sunshade device, or each compartment 30 has at least one sunshade device. At least one side of the compartment 30 along the third direction Z has a window structure communicating with the interior of the compartment 30. The heat sink assembly 51 of the transformer 5 faces the window, further enhancing airflow between the transformer 5 and the outside environment and improving heat dissipation.

[0115] Please refer to Figure 23 For example, there are three compartments 30. The transformer 5 is located in the middle compartment 30. The compartment 30 where the transformer 5 is located is provided with a shield 1. The shield 1 is provided with two spaced ventilation windows 10. The ventilation windows 10 correspond to the heat sink assembly 51.

[0116] Please combine them together Figure 24 and Figure 25Alternatively, each compartment 30 may be equipped with a cover 1, and the cover 1 may have the same structure, that is, the cover 1 may have two ventilation windows 10 or the cover 1 may have blades 2.

[0117] Please refer to Figure 26 Alternatively, a shield 1 is installed on the compartment 30 where the transformer 5 is located, and the shield 1 has blades 2.

[0118] Please refer to Figure 27 Alternatively, each compartment 30 may be equipped with a shield 1. The shield 1 corresponding to the transformer 5 may have two spaced ventilation windows 10, which correspond to the heat sink assembly 51. The other two shields 1 may have blade structures 2. In the above example, the blades 2 on the shield 1 may be a structure combined with the ventilation windows 10 or a scheme combined with the ventilation unit 101, which can be selected according to actual needs. Similarly, the structure and arrangement order of the shields 1 on each compartment 30 can also be freely combined, and the type and arrangement order of electrical devices placed in each compartment 30 can also be freely allocated.

[0119] Please refer to Figure 31 In some embodiments, the electrical equipment further includes a canopy 8 disposed on the sunshade device, wherein the canopy 8 and the sunshade device at least partially overlap in orthographic projection along a first direction X. The canopy 8 can be connected to the sunshade device by a vertical rod. The canopy 8 can be a herringbone structure or a flat plate structure. In the case of a flat plate structure, the canopy 8 can be horizontally or inclined.

[0120] The space between the canopy 8 and the shading device allows airflow to pass through the window area, increasing the overall heat dissipation space between the transformer 5 and the external environment. The orthographic projection of the canopy 8 along the first direction X can completely cover the transformer 5. At this time, airflow can pass through the ventilation window 10 on the shading plate 1 or the window area on the outer periphery of the shading plate 1. The canopy 8 blocks sunlight from shining on the heat sink assembly 51, reducing the impact of solar radiation on the heat sink assembly 51.

[0121] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0122] The sunshade device and electrical equipment provided in the embodiments of this application have been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sunshade device, characterized in that, The shading device, which is used to install on the transformer (5), includes: The shield (1) is provided with a ventilation window (10). In a first direction (X), at least a portion of the ventilation window (10) is disposed opposite to the heat sink assembly (51) of the transformer (5). The first direction (X) is the height direction of the transformer (5).

2. The sunshade device according to claim 1, characterized in that, The number of ventilation windows (10) is set to a plurality of, and the transformer (5) includes a plurality of heat sink groups (51). Each ventilation window (10) corresponds to at least one heat sink group (51), or each heat sink group (51) corresponds to at least one ventilation window (10).

3. The sunshade device according to claim 1, characterized in that, The orthographic projection of the heat sink assembly (51) along the first direction (X) onto the shield (1) falls into the ventilation window (10).

4. The sunshade device according to claim 1, characterized in that, The shading device also includes a plurality of blades (2), which are arranged opposite to the ventilation window (10), and adjacent blades (2) are spaced apart. The blades (2) are connected to the shading plate (1), and the orthogonal projection of the plurality of blades (2) along the first direction (X) on the shading plate (1) falls at least partially into the ventilation window (10).

5. The sunshade device according to claim 4, characterized in that, The ventilation window (10) extends along the second direction (Y), and the plurality of blades (2) are arranged at intervals along the second direction (Y), the second direction (Y) intersecting the first direction (X); The orthographic projection of the transformer (5) along the first direction (X) onto the shield (1) falls into the ventilation window (10).

6. The sunshade device according to claim 4, characterized in that, The ventilation window (10) includes a plurality of ventilation units (101), which are arranged along a second direction (Y) and are separated by stiffeners (102) between adjacent ventilation units (101). Each ventilation unit (101) corresponds to the blade (2).

7. The sunshade device according to any one of claims 4 to 6, characterized in that, The blade (2) includes a first segment (21) and a second segment (22). The first segment (21) is connected to the baffle (1), and the second segment (22) is connected to the side of the first segment (21) away from the baffle (1). The second segment (22) is set at an angle to the first direction (X).

8. The sunshade device according to any one of claims 4 to 6, characterized in that, The blade (2) is set at an angle to the first direction (X).

9. The sunshade device according to claim 4, characterized in that, Multiple blades (2) are arranged in a row at intervals along a second direction (Y), and the blades (2) extend along a third direction (Z). The third direction (Z) intersects the first direction (X) and the second direction (Y). The sunshade device includes multiple rows of blades (2), which are arranged at intervals along the first direction (X), and the blades (2) in adjacent rows are staggered along the second direction (Y).

10. The sunshade device according to claim 4, characterized in that, At least a portion of the blade (2) is located on the side of the shield (1) away from the transformer (5), or at least a portion of the blade (2) is located on the side of the shield (1) facing the transformer (5).

11. The sunshade device according to claim 1, characterized in that, The ventilation window (10) is either elliptical or polygonal in shape.

12. The sunshade device according to claim 1, characterized in that, The shield (1) is set at an angle to the first direction (X); Alternatively, the shield (1) extends along an arc-shaped trajectory; Alternatively, the shield (1) may include a first plate (11) and a second plate (12) connected to each other, wherein the first plate (11) and the second plate (12) are arranged at an angle.

13. A sunshade device, characterized in that, For installation on a transformer (5), the sunshade device includes a shading plate (1), the orthographic projection of the shading plate (1) along a first direction (X) is at least partially able to cover the transformer (5), and the orthographic projection is separate from or partially overlaps with the heat sink assembly (51) of the transformer (5).

14. An electrical device, characterized in that, include: Transformer (5); The sunshade device according to any one of claims 1 to 13.

15. The electrical equipment according to claim 14, characterized in that, The electrical equipment also includes a fixing structure (6), which connects the sunshade device and the transformer (5) respectively, so that the sunshade device is fixed above the transformer (5) along the first direction (X); Alternatively, the fixing structure (6) may be disposed on at least one side of the transformer (5), and the sunshade device may be disposed on the fixing structure (6).

16. The electrical equipment according to claim 14, characterized in that, The electrical equipment also includes a frame (3), the transformer (5) is disposed within the frame (3), and the sunshade device is disposed on the frame (3).

17. The electrical equipment according to claim 16, characterized in that, The electrical equipment also includes a bracket (7), which connects the sunshade device and the frame (3) respectively.

18. The electrical equipment according to claim 16, characterized in that, The frame (3) is provided with multiple columns (4), and the sunshade device is connected to the columns (4).

19. The electrical equipment according to claim 16 or 18, characterized in that, The frame (3) includes multiple compartments (30) arranged along a second direction (Y), with adjacent compartments (30) separated from each other, and the transformer (5) disposed in one of the compartments (30); At least the compartment (30) corresponding to the transformer (5) is provided with the sunshade device, or each compartment (30) is provided with at least one sunshade device.

20. The electrical equipment according to claim 14, characterized in that, The electrical equipment also includes a canopy (8) disposed on the sunshade device, wherein the canopy (8) and the sunshade device at least partially overlap in orthographic projection along a first direction (X).

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