A protection assembly, cabinet and electrical system

Abstract

The application discloses a protection assembly, a cabinet and an electrical system. The protection assembly is used for an electrical cabinet. The cabinet body of the electrical cabinet is provided with an air outlet which is opened along the Y-axis direction. The protection assembly comprises a protection structure and a protection cover. The protection structure is arranged in the protection cover and comprises at least one air outlet louver and at least two protection cottons which are arranged on both sides of the air outlet louver along the Y-axis direction. The air outlet louver is suitable for being inclined to the air outlet. The protection cover penetrates the air outlet and forms a first protection part in the cabinet body and a second protection part outside the cabinet body. The second protection part is provided with an air outlet which is located outside the protection structure. The cabinet comprises the electrical cabinet and the protection assembly. The electrical system comprises the cabinet. The application can realize high protection and high aesthetic degree simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the electrical technical field, in particular to a protection assembly, a cabinet and an electrical system. BACKGROUND

[0002] At present, the common heat dissipation scheme in the electrical cabinet is air cooling heat dissipation, the cabinet body is provided with an air inlet and an air outlet, a fan is arranged in the cabinet body to drive air to flow from the air inlet to the air outlet, the electrical components in the electrical cabinet do not work all the time, and when the fan does not work, the air outlet is easily invaded by sand and rain and snow in the opposite direction. Therefore, in order to improve the protection, a protection cover is usually arranged outside the air outlet in the prior art, the protection cover is provided with an air outlet communicated with the air outlet, and when the protection level is required to be higher, the protection cover is generally thicker to increase the distance between the air outlet and the air outlet, so as to avoid the rain and snow from entering the cabinet through the air outlet. At this time, the protection cover protrudes outward from the cabinet with a thick posture, which is poor in appearance. SUMMARY

[0003] The present application aims to overcome the above-mentioned defects or problems in the background art, and to provide a protection assembly, a cabinet and an electrical system which can realize high protection and good appearance at the same time.

[0004] In order to achieve the above-mentioned purpose, the present application and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] The first technical solution and its related embodiments provide a protection assembly for an electrical cabinet, the cabinet body of the electrical cabinet is provided with an air outlet opened along the Y-axis direction, the protection assembly comprises a protection structure and a protection cover; the protection structure is arranged in the protection cover and comprises at least one air outlet louver and at least two protection cottons arranged on both sides of the air outlet louver along the Y-axis direction, the air outlet louver is adapted to be inclined to the air outlet; the protection cover penetrates the air outlet and forms a first protection part located in the cabinet body and a second protection part located outside the cabinet body, the second protection part is provided with an air outlet located outside the protection structure.

[0006] Based on the first technical solution, the second technical solution is also provided, in the second technical solution and its related embodiments, the protection structure is located in the middle part of the protection cover along the Y-axis direction; the length ratio of the second protection part to the first protection part along the Y-axis direction is less than 2.

[0007] Based on the second technical solution, the third technical solution is also provided, in the third technical solution and its related embodiments, the protection structure comprises one air outlet louver and two protection cottons, the two protection cottons are arranged in the first protection part and the second protection part respectively, the protection cotton in the first protection part is the first protection cotton, the protection cotton in the second protection part is the second protection cotton, and the distance between the second protection cotton and the air outlet louver is greater than the distance between the first protection cotton and the air outlet louver.

[0008] Based on the third technical solution, the fourth technical solution and its related embodiments are provided, in which the ventilation rates of the protection cottons are consistent, the air outlet louver is arranged in the first protection part, and the distance between the second protection cotton and the air outlet louver is at least four times the distance between the first protection cotton and the air outlet louver.

[0009] Based on any one of the first to fourth technical solutions, the fifth technical solution and its related embodiments are provided, in which the second protection part is provided with an avoiding gap on each side along the X-axis direction, which is suitable for avoiding the protection cover of the adjacent electrical cabinet.

[0010] Based on the fifth technical solution, the sixth technical solution and its related embodiments are provided, in which the side part of the second protection part is provided with an air outlet for exhausting air in a direction away from the air inlet, and the bottom part of the second protection part is provided with a drainage port at an end away from the air outlet along the Y-axis direction.

[0011] Based on the sixth technical solution, the seventh technical solution and its related embodiments are provided, in which the air outlet is suitable for exhausting air in a horizontal direction, the bottom part of the second protection part is provided with a drainage plate inclined outward from top to bottom, the bottom end of the drainage plate is provided with the drainage port, the first protection part is provided with a ventilation port opposite to the air outlet louver, and the bottom end of the ventilation port is lower than the bottom end of the air outlet.

[0012] Based on the seventh technical solution, the eighth technical solution and its related embodiments are provided, in which the second protection part is provided with a protruding part protruding at the middle part along the X-axis direction, the protruding part is provided with a guide plate extending in a vertical direction on each side along the X-axis direction, the distance between the two guide plates gradually increases in a direction close to the air outlet, the guide plate forms part of the avoiding gap, and the drainage port is arranged on the protruding part.

[0013] The ninth technical solution and its related embodiments provide a cabinet, which includes an electrical cabinet and a protection assembly as described in any one of the first to eighth technical solutions.

[0014] The tenth technical solution and its related embodiments provide an electrical system, which includes a plurality of parallel connection assemblies arranged at intervals along the Y-axis direction, each parallel connection assembly includes at least two cabinets as described in the ninth technical solution, each cabinet is adjacent along the X-axis direction, the electrical cabinet is provided with two cabinet doors parallel to each other and opposite to each other along the Y-axis direction, the air outlet is symmetrically arranged on the two cabinet doors, and at least one cabinet door is provided with an air inlet below the air outlet.

[0015] From the above description of the present application and its preferred embodiments, it can be seen that, compared with the prior art, the technical solutions and their preferred embodiments of the present application have the following beneficial effects due to the use of the following technical means:

[0016] In the technical solution one and the preferred embodiments thereof, the protection structure comprises at least one air outlet louver and at least two protection cottons respectively arranged on both sides of the air outlet louver along the Y-axis direction, and the second protection part is provided with an air outlet on the outside of the protection structure. On the one hand, when the rain, snow and sand outside the electrical cabinet do not work, the rain, snow and sand outside enter the cabinet through the air outlet, the rain, snow and sand outside first pass through the air outlet, slow down and reach the first layer of protection cotton, the sand is adsorbed by the protection cotton, the speed of the rain and snow is greatly reduced, and a small part of the rainwater that penetrates the first layer of protection cotton continues to move in the direction close to the cabinet, and then passes through the air outlet louver. The air outlet louver changes the direction of the rain and snow multiple times to form a labyrinth path for the rain and snow, so that the kinetic energy of the rain and snow is greatly reduced. Therefore, only a small part of the rain and snow reaches the second layer of protection cotton at this time. Even if the rain and snow reaches the second layer of protection cotton, the second protection cotton will hinder the speed of the rain and snow to be substantially reduced to zero. Therefore, by arranging the air outlet louver between the two protection cottons, the kinetic energy of the rain and snow can be greatly reduced. The design of at least one air outlet louver and at least two protection cottons makes the length of the protection structure in the Y-axis direction smaller. The protection cover penetrates the air outlet and forms the first protection part in the cabinet and the second protection part outside the cabinet. The length of the second protection part in the Y-axis direction can be set smaller by adjusting the position of the protection structure in the protection cover. Therefore, the protection cover can protrude outside the cabinet in a thinner manner, which is more beautiful. When the air outlet is arranged on the cabinet door, the electrical cabinet cooperating with the above protection assembly can be opened at a larger angle. When the electrical cabinets cooperating with the above protection assembly are arranged along the X-axis direction, the cabinet door can also be opened at a larger angle, thereby facilitating maintenance. On the other hand, the above protection structure also makes the air outlet louver change the direction of the air outlet when the air outlet louver is inclined downward. In combination with the arrangement of the air outlet, the hot air flow of the air outlet can be prevented from re-entering the air inlet when the air outlet louver is downward, thereby avoiding the short circuit of the hot air flow. In addition, the design of the multiple layers of protection cotton has higher air outlet efficiency than the one layer of dense protection cotton, thereby making the overall heat dissipation efficiency of the electrical cabinet higher. Therefore, the arrangement of the protection assembly of the present application makes the electrical cabinet have higher air outlet efficiency and higher heat dissipation efficiency when working normally, and has higher protection when stopping working. More importantly, under the premise of meeting the above conditions, the protection cover can protrude from the cabinet in a thinner manner, which is not only beautiful, but also facilitates the opening of the cabinet door at a larger angle when the air outlet is arranged on the cabinet door.

[0017] In the second technical solution and the preferred embodiments thereof, if the protection structure is arranged on either side of the protection cover along the Y-axis direction, such as only in the first protection part, the length of the first protection part is relatively long, and the space in the cabinet body is relatively large; if the protection structure is arranged only in the second protection part, the length of the second protection part is relatively long, the protection cover protrudes out of the cabinet body in a thick manner, and the aesthetic appearance is poor. Therefore, the protection structure is arranged in the middle of the protection cover along the Y-axis direction, so that the space in the cabinet body is not excessively occupied, and the length of the second protection part along the Y-axis direction is relatively short, and the appearance is more beautiful. The ratio of the length of the second protection part to the length of the first protection part along the Y-axis direction is less than 2, the thickness of the second protection part is relatively thin, and the electrical cabinet used in cooperation with the protection assembly of the technical solution is more beautiful.

[0018] In the third technical solution and the preferred embodiments thereof, the protection structure includes an air outlet louver and two protection cottons, so that the length of the protection structure along the Y-axis direction is relatively small as a whole; the distance between the second protection cotton and the air outlet louver is greater than the distance between the first protection cotton and the air outlet louver. On the one hand, when the electrical cabinet is not working, the distance between the second protection cotton and the air outlet louver is larger, which is more conducive to reducing the rain and snow reaching the air outlet louver, thereby improving the protection performance, and the distance between the first protection cotton and the air outlet louver is smaller, which is more conducive to absorbing the rain and snow flowing from the air outlet louver, thereby further improving the protection performance. On the other hand, when the electrical cabinet is working normally, and the air outlet is normally ventilating, the distance between the second protection cotton and the air outlet louver is larger, which is conducive to changing the air outlet direction of the air outlet louver, thereby reducing the hot air short circuit when the air inlet is arranged below the air outlet and the air outlet louver is downwardly ventilating, and improving the heat dissipation efficiency of the electrical cabinet.

[0019] In the fourth technical solution and the preferred embodiments thereof, the ventilation rates of the protection cottons are consistent, which reduces the influence of the multiple layers of protection cottons on the ventilation efficiency; the air outlet louver is arranged in the first protection part, which is conducive to realizing that the distance between the second protection cotton and the air outlet louver is greater than the distance between the first protection cotton and the air outlet louver; the distance between the second protection cotton and the air outlet louver is at least four times the distance between the first protection cotton and the air outlet louver. Compared to the distance between the second protection cotton and the air outlet louver being only slightly greater than the distance between the first protection cotton and the air outlet louver, on the one hand, when the electrical cabinet is not working, the large distance between the second protection cotton and the air outlet louver is conducive to greatly reducing the kinetic energy of rain and snow, thereby making only a small part of the rain and snow pass through the air outlet louver, thereby improving the protection performance; on the other hand, when the electrical cabinet is working normally, the air outlet is normally ventilating, and the air outlet louver is downwardly ventilating, the large distance between the second protection cotton and the air outlet louver is very conducive to changing the air outlet direction of the air outlet louver, that is, the direction of the wind reaching the second protection cotton is not downward, and the wind flow changes direction again when reaching the second protection cotton, thereby further reducing the hot air short circuit when the air inlet is arranged below the air outlet, and improving the heat dissipation efficiency of the electrical cabinet.

[0020] In the fifth aspect and the preferred embodiments thereof, the second protection part is provided with an avoiding gap suitable for avoiding the adjacent protection cover of the electrical cabinet on both sides in the X-axis direction, so that the electrical cabinet with the protection assembly of the present application can be opened at a larger angle, and the protection cover of the adjacent electrical cabinet does not easily interfere when the cabinet door is opened, so that the cabinet door can be opened at a larger angle, facilitating the later maintenance, and the avoiding gap is easier to process on the basis of the thinner second protection part.

[0021] In the sixth aspect and the preferred embodiments thereof, in order to improve the heat dissipation efficiency, the side part of the second protection part is provided with an air outlet, which is better in protection than the air outlet provided on the top of the second protection part; wherein the air is discharged in a direction away from the air inlet, meaning that the hot air discharged from the air outlet will not enter the air inlet without external intervention, and the direction away from the air inlet can be a horizontal direction or an upward direction (including vertical upward and inclined upward), as long as the hot air discharged from the air outlet will not enter the air inlet. Since the hot air has a small density, most of the hot air is discharged from the air outlet. Even if a small part of the hot air is discharged from the air outlet, since the air outlet is away from the air outlet in the Y-axis direction, the hot air is discharged through the air outlet in the Y-axis direction away from the air inlet, so that the hot air discharged from the air outlet is not easy to enter the air inlet downward, thereby avoiding the short circuit of the hot air and ensuring the heat dissipation efficiency of the electrical cabinet. In combination with the above-mentioned multi-layer protection cotton, the air outlet has a high air outlet efficiency. In addition, the provision of the air outlet also ensures that even if rain and snow enter the protection cover through the air outlet, they can be discharged in time through the air outlet, thereby ensuring the protection of the electrical cabinet.

[0022] In the seventh aspect and the preferred embodiments thereof, the air outlet is suitable for discharging air in a horizontal direction, so that the external rain, snow or dust is not easy to enter the protection cover in the reverse direction through the air outlet, thereby further improving the protection. The bottom of the second protection part is provided with a drainage plate inclined outward from top to bottom, and the bottom end of the drainage plate is provided with a drainage outlet. The drainage plate is the lowest part of the second protection part, and the drainage outlet is the lowest part of the drainage plate. Therefore, even if water enters the protection cover, the accumulated water can be discharged outward in time through the drainage plate and the drainage outlet on the drainage plate, thereby ensuring the protection of the electrical cabinet. The bottom end of the air outlet is lower than the bottom end of the air outlet, so that even if there is accumulated water in the first protection part, the accumulated water will not flow into the cabinet through the first air outlet, thereby ensuring the protection of the electrical cabinet.

[0023] In the eighth aspect and the preferred embodiments thereof, the guide plate can form part of the avoiding gap and can guide the accumulated water to the drainage outlet in time when water enters the protection cover, thereby ensuring the protection of the electrical cabinet.

[0024] The ninth aspect has the technical advantages of any one of the first to eighth aspects.

[0025] The tenth technical scheme has the technical advantages of the ninth technical scheme, and further makes the parallel machine assembly arranged along the Y axis, so that the upstream hot air flow does not easily interfere with the air inlet of the downstream cabinet, thereby reducing the floor area and ensuring the heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description are briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is a schematic diagram of the electrical system of the embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the parallel machine assembly of the electrical system of the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the cabinet of the embodiment of the present application.

[0030] Figure 4 It is a front view of Figure 3 .

[0031] Figure 5 It is a partial sectional view in the A-A direction. Figure 4

[0032] Figure 6 It is a rear view of the protection assembly of the embodiment of the present application installed on the cabinet door.

[0033] Figure 7 It is a schematic diagram of the protection assembly of the embodiment of the present application installed on the cabinet door.

[0034] Main drawing mark explanation:

[0035] Electrical cabinet 10; cabinet door 11; air outlet 12; air inlet 13; protection assembly 100; protection cover 20; first protection part 21; ventilation port 211; second protection part 22; exhaust port 221; drainage plate 222; drainage port 2221; first drainage part 2222; second drainage part 2223; protruding part 223; guide plate 224; first air outlet plate 225; second air outlet plate 226; avoidance gap 01; air outlet louver 30; protection cotton 40; first protection cotton 41; second protection cotton 42. DETAILED DESCRIPTION

[0036] ​The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as exclusion of other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] In the claims, the specification, and the above drawings of the present application, unless otherwise explicitly limited, the terms "first", "second", or "third" are used only to distinguish different objects, and are not used to describe a particular order.

[0038] In the claims, the specification, and the above drawings of the present application, unless otherwise explicitly limited, for orientation words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0039] In the claims, the specification, and the above drawings of the present application, unless otherwise explicitly limited, such as the terms "fixedly connected" or "fixedly connected", should be understood broadly, that is, any connection mode between the two without displacement relationship and relative rotation relationship, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0040] In the claims, the specification, and the above drawings of the present application, the terms "include", "have" and their variants are intended to mean "include but not limited to".

[0041] In the claims and the specification except for the embodiments, the terms "X-axis direction", "Y-axis direction" and "Z-axis direction" only refer to the characteristics with one of the above directions and the characteristics with another direction perpendicular to each other, and do not require that it must be implemented according to the "X-axis direction", "Y-axis direction" and "Z-axis direction" introduced in the embodiments. In the embodiments, the X-axis direction is perpendicular to the Y-axis direction and the Z-axis direction. Among them, the X-axis direction can be divided into left and right, the Y-axis direction can be divided into front and back, and the Z-axis direction can be divided into up and down.

[0042] Referring to Figure 1 , Figure 1An electrical system is shown, comprising a plurality of parallel connection assemblies arranged along a Y-axis direction, each parallel connection assembly comprising at least two cabinets connected along a horizontal X-axis direction, each cabinet comprising an electrical cabinet 10 and a protection assembly 100.

[0043] Referring to Figures 2-3 , the electrical cabinet 10 is generally cuboid, and two cabinet doors 11 are arranged opposite to each other along the Y-axis direction, and symmetrical air outlets 12 are arranged on the two cabinet doors 11 along the Y-axis direction, and at least one of the cabinet doors 11 is provided with an air inlet 13 below the air outlet 12, wherein the air inlet 13 is provided with a waterproof louver. The protection assembly 100 is arranged at the air outlet 12, and the number of the protection assembly 100 is consistent with the number of the air outlet 12.

[0044] Referring to Figures 4-7 , the protection assembly 100 comprises a protection structure and a protection cover 20, and the protection structure is arranged in the protection cover 20. In this embodiment, the protection structure is located in the middle of the protection cover 20 along the Y-axis direction, and comprises at least one air outlet louver 30 and at least two protection cottons 40 arranged on both sides of the air outlet louver 30 along the Y-axis direction. The ventilation rates of the protection cottons 40 are consistent. In this embodiment, the protection structure comprises one air outlet louver 30 and two protection cottons 40, and the air outlet louver 30 and the protection cottons 40 all extend along the vertical direction, but it should be understood that the number of the air outlet louver 30 and the protection cottons 40 can be set to be more. The air outlet louver 30 is adapted to be inclined to outwardly blow air, Figure 5 , the projection of the air outlet louver 30 on the cross section perpendicular to the Y-axis direction is a V-shaped opening downward, so that the air outlet louver 30 is adapted to be inclined outwardly to blow air downward.

[0045] When the protection structure is attached in the protection cover 20, the air outlet louver 30 can be directly welded with the protection cover 20, and two insertion slots arranged along the Z-axis direction and opposite to each other can be arranged in the protection cover 20, the insertion slots extend along the X-axis direction, and the protection cottons 40 can be inserted into the two opposite insertion slots. This part belongs to the prior art, and this embodiment will not be described again.

[0046] Still referring to Figure 5 , the protection cover 20 penetrates the air outlet 12 and forms a first protection part 21 located in the cabinet and a second protection part 22 located outside the cabinet. The ratio of the length of the second protection part 22 to the length of the first protection part 21 along the Y-axis direction is less than 2. The two protection cottons 40 are arranged in the first protection part 21 and the second protection part 22 respectively, wherein the protection cotton 40 in the first protection part 21 is a first protection cotton 41, and the protection cotton 40 in the second protection part 22 is a second protection cotton 42. The distance between the second protection cotton 42 and the air outlet louver 30 is greater than the distance between the first protection cotton 41 and the air outlet louver 30. The air outlet louver 30 is arranged in the first protection part 21, and the distance between the second protection cotton 42 and the air outlet louver 30 is at least four times the distance between the first protection cotton 41 and the air outlet louver 30. Figure 5In the embodiment, the air outlet louver 30 is close to the air outlet 12, and the first protective cotton 41 is close to the air outlet louver 30.

[0047] In the embodiment, the protective cover 20 can be installed in various ways. For example, the protective cover 20 can be integrally formed, and the second protective part 22 is locked with the cabinet door 11. Alternatively, the protective cover 20 can be a separate structure, the first protective part 21 is fixedly connected with the cabinet door 11 inside the cabinet door 11, and the second protective part 22 is fixedly connected with the cabinet door 11 outside the cabinet door 11.

[0048] The first protective part 21 is provided with a ventilation opening 211 opposite to the air outlet louver 30, and the bottom end of the ventilation opening 211 is lower than the bottom end of the air outlet 12.

[0049] Referring to Figure 5 and Figure 2 , the second protective part 22 is provided with an air outlet 221 located outside the protective structure, and the two sides of the second protective part 22 along the X-axis direction are respectively provided with an avoiding gap 01 adapted to avoid the protective cover 20 of the adjacent electrical cabinet 10, referring to Figure 7 The bottom of the second protective part 22 is provided with a drainage opening 2221 at one end away from the air outlet 12 along the Y-axis direction. In the embodiment, the side of the second protective part 22 is provided with the air outlet 221 for discharging air away from the air inlet 13, and the air outlet 221 is adapted to discharge air in the horizontal direction. The bottom of the second protective part 22 is provided with a drainage plate 222 inclined outward from top to bottom, and the bottom end of the drainage plate 222 is provided with the drainage opening 2221.

[0050] Specifically, referring to Figure 1 and Figure 7 , the middle of the second protective part 22 along the X-axis direction is provided with a protruding part 223; the two sides of the protruding part 223 along the X-axis direction are respectively provided with a guide plate 224 extending in the vertical direction, and the distance between the two guide plates 224 gradually increases in the direction close to the air outlet 12; the guide plate 224 forms part of the avoiding gap 01; in the embodiment, the protruding part 223 is provided with a first air outlet plate 225 perpendicular to the Y-axis direction between the two guide plates 224, and the second protective part 22 is further provided with a second air outlet plate 226 perpendicular to the X-axis direction on the two sides of the protruding part 223 along the X-axis direction. The outer surface of the second air outlet plate 226 and the outer surface of the guide plate 224 adjacent to the second air outlet plate 226 cooperatively form the avoiding gap 01. The air outlet 221 is formed on the first air outlet plate 225, the second air outlet plate 226 and the guide plate 224. The drainage opening 2221 is arranged on the protruding part 223, that is, close to the first air outlet plate 225.

[0051] Since the second protective cotton 42 is located on the outer layer, it needs to be replaced after a period of use, referring to Figure 5The drainage plate 222 comprises a first drainage part 2222 and a second drainage part 2223 which are detachably fixed, and the second protective cotton 42 is detachably arranged on the second drainage part 2223, so that the maintenance and replacement of the second protective cotton 42 are more convenient.

[0052] In the embodiment, the protection structure includes at least one air outlet louver 30 and at least two protection cottons 40 respectively arranged on both sides of the air outlet louver 30 along the Y-axis direction, and the second protection part 22 is provided with an air outlet 221 located outside the protection structure. On the one hand, when the outside has rain, snow, wind and sand and the electrical cabinet 10 does not work, the outside rain, snow, wind and sand enter the cabinet body through the air outlet 12, and the outside rain, snow, wind and sand first pass through the air outlet 221, slow down and reach the first layer of protection cotton 40, the wind and sand are adsorbed by the protection cotton 40, the speed of the rain and snow is greatly reduced, and a small part of the rainwater that penetrates the first layer of protection cotton 40 continues to move in the direction close to the cabinet body, and then passes through the air outlet louver 30. The air outlet louver 30 changes the direction of the rain and snow multiple times to form a labyrinth path for the rain and snow, so that the kinetic energy of the rain and snow is greatly reduced. Therefore, at this time, only a very small part of the rain and snow reaches the second layer of protection cotton 40, and even if it reaches the second layer of protection cotton 40, the second protection cotton 42 will hinder the speed of the rain and snow to be substantially reduced to zero. Therefore, by arranging the air outlet louver 30 between the two protection cottons 40, the kinetic energy of the rain and snow can be greatly reduced. The design of at least one air outlet louver 30 and at least two protection cottons 40 makes the overall length of the protection structure in the Y-axis direction smaller. The protection cover 20 penetrates the air outlet 12 and forms the first protection part 21 located in the cabinet body and the second protection part 22 located outside the cabinet body. Because the position of the protection structure in the protection cover 20 can be adjusted to make the length of the second protection part 22 in the Y-axis direction smaller, the protection cover 20 can protrude outside the cabinet body in a thinner state, which is more beautiful. When the air outlet 12 is arranged on the cabinet door 11, the electrical cabinet 10 cooperating with the above-mentioned protection assembly 100 can be opened at a larger angle. When the electrical cabinet 10 cooperating with the above-mentioned protection assembly 100 is arranged along the X-axis direction, it can also be opened at a larger angle, thereby facilitating maintenance. On the other hand, the above-mentioned protection structure also makes the air outlet 12 normally blow air. Because the air outlet louver 30 blows air downward, the protection cotton 40 located outside the air outlet louver 30 can also change the direction of the air outlet, and the arrangement of the air outlet 221 can avoid the hot air flow of the air outlet 12 from re-entering the air inlet 13 due to the downward air outlet of the air outlet louver 30, thereby causing the short circuit of the hot air flow. In addition, the design of the multiple layers of protection cotton 40 has higher air outlet efficiency than the design of one layer of dense protection cotton 40, thereby making the overall heat dissipation efficiency of the electrical cabinet 10 higher. Therefore, the arrangement of the protection assembly 100 of the present application makes the electrical cabinet 10 have higher air outlet efficiency and higher heat dissipation efficiency when working normally, and can achieve higher protection when stopping working. More importantly, under the premise of meeting the above conditions, the protection cover 20 can protrude from the cabinet body in a thinner state, which is not only beautiful but also facilitates the opening of the cabinet door 11 at a larger angle when the air outlet 12 is arranged on the cabinet door 11.

[0053] In the embodiment, if the protection structure is arranged on any side of the protection cover 20 along the Y-axis direction, such as only in the first protection part 21, the length of the first protection part 21 is relatively long, and the space in the cabinet body is relatively large. If the protection structure is arranged only in the second protection part 22, the length of the second protection part 22 is relatively long, the protection cover 20 protrudes out of the cabinet body in a thick manner, and the aesthetic degree is poor. Therefore, the protection structure is arranged in the middle of the protection cover 20 along the Y-axis direction, so that the space in the cabinet body is not excessively occupied, and the length of the second protection part 22 along the Y-axis direction is relatively short, and the appearance is more beautiful. The ratio of the length of the second protection part 22 to the length of the first protection part 21 along the Y-axis direction is less than 2, the thickness of the second protection part 22 is relatively thin, and the electrical cabinet 10 is more beautiful when the protection assembly 100 of the technical solution is used in cooperation.

[0054] In the embodiment, the protection structure includes an air outlet louver 30 and two protection cottons 40, so that the length of the protection structure along the Y-axis direction is relatively small as a whole. The distance between the second protection cotton 42 and the air outlet louver 30 is greater than the distance between the first protection cotton 41 and the air outlet louver 30. On the one hand, when the electrical cabinet 10 is not working, the distance between the second protection cotton 42 and the air outlet louver 30 is greater, which is more conducive to reducing the rain and snow reaching the air outlet louver 30, thereby improving the protection performance, and the distance between the first protection cotton 41 and the air outlet louver 30 is smaller, which is more conducive to adsorbing the rain and snow flowing inward from the air outlet louver 30, thereby further improving the protection performance. On the other hand, when the electrical cabinet 10 is working normally, and the air outlet 12 is normally ventilating, the distance between the second protection cotton 42 and the air outlet louver 30 is greater, which is conducive to changing the air outlet direction of the air outlet louver 30, thereby reducing the short circuit of the hot air flow when the air inlet 13 is arranged below the air outlet 12, improving the heat dissipation efficiency of the electrical cabinet 10.

[0055] In the embodiment, the ventilation rates of the protective cottons 40 are consistent, which reduces the influence of the multi-layer protective cotton 40 on the air outlet efficiency; the air outlet louver 30 is arranged in the first protective part 21, which is conducive to realizing that the distance between the second protective cotton 42 and the air outlet louver 30 is greater than the distance between the first protective cotton 41 and the air outlet louver 30; the distance between the second protective cotton 42 and the air outlet louver 30 is at least four times the distance between the first protective cotton 41 and the air outlet louver 30. Compared with the distance between the second protective cotton 42 and the air outlet louver 30 being only slightly greater than the distance between the first protective cotton 41 and the air outlet louver 30, on the one hand, when the electrical cabinet 10 is not working, the large distance between the second protective cotton 42 and the air outlet louver 30 is conducive to greatly reducing the kinetic energy of rain and snow, so that only a very small part of the rain and snow passes through the air outlet louver 30, thereby improving the protection performance; on the other hand, when the electrical cabinet 10 is normally working and the air outlet 12 is normally air outlet, the large distance between the second protective cotton 42 and the air outlet louver 30 is very conducive to changing the air outlet direction of the air outlet louver 30, that is, the direction of the wind reaching the second protective cotton 42 is not downward, and the wind flow changes direction again when reaching the second protective cotton 42, thereby further reducing the short circuit of the hot air flow when the air inlet 13 is arranged below the air outlet 12, improving the heat dissipation efficiency of the electrical cabinet 10.

[0056] In the embodiment, the second protective part 22 is provided with an avoiding gap 01 suitable for avoiding the adjacent protective cover 20 of the electrical cabinet 10 on both sides in the X-axis direction, which further enables the electrical cabinet 10 adopting the protective assembly of the embodiment to be opened at a larger angle when the door is opened, and when the cabinets are combined, the protective cover 20 of the adjacent electrical cabinet 10 is not easy to interfere after the cabinet door 11 is opened, so that the cabinet door 11 can be opened at a larger angle, which is convenient for later maintenance, and the avoiding gap 01 is easier to process on the basis of the thinner second protective part 22.

[0057] In the embodiment, in order to improve the heat dissipation efficiency, the side of the second protection part 22 is provided with an air outlet 221, compared with the top of the second protection part 22, the protection of the protective cover 20 is better; wherein, the air outlet 221 is arranged in a direction away from the air inlet 13, which means that the hot air discharged from the air outlet 221 will not enter the air inlet 13 without external intervention, and the direction away from the air inlet 13 can be horizontal or upward (including vertical upward and inclined upward), as long as the hot air discharged from the air outlet 221 will not enter the air inlet 13; because the density of hot air flow is small, most of the hot air flow is discharged from the air outlet 221, even if a small part of the hot air flow is discharged from the air outlet 2221, because the air outlet 2221 is away from the air outlet 12 along the Y axis, when the hot air flow is discharged through the air outlet 2221, it is also away from the air inlet 13 along the Y axis, so that the hot air discharged from the air outlet 12 is not easy to enter the air inlet 13 downward, thereby avoiding the short circuit of the hot air flow, ensuring the heat dissipation efficiency of the electrical cabinet 10, and cooperating with the arrangement of the above-mentioned multi-layer protection cotton 40, the air outlet efficiency is higher; in addition, the arrangement of the air outlet 2221 also makes it possible to discharge rain and snow through the air outlet 2221 in time even if they enter the protective cover 20 through the air outlet 221, thereby ensuring the protection of the electrical cabinet 10.

[0058] In the embodiment, the air outlet 221 is suitable for discharging air in the horizontal direction, compared with upward air discharge, external rain, snow or dust is not easy to invade the protective cover 20 in the reverse direction through the air outlet 221, thereby further improving the protection; the bottom of the second protection part 22 is provided with a drainage plate 222 which is inclined outward from top to bottom, and the bottom end of the drainage plate 222 is provided with an air outlet 2221, the drainage plate 222 is the lowest part of the second protection part 22, and the air outlet 2221 is the lowest part of the drainage plate 222, so that even if water enters the protective cover 20, the accumulated water can be discharged outward in time through the drainage plate 222 and the air outlet 2221 on the drainage plate 222, thereby ensuring the protection of the electrical cabinet 10. The bottom end of the air outlet 211 is lower than the bottom end of the air outlet 12, so that even if there is accumulated water in the first protection part 21, the accumulated water will not flow into the cabinet through the first air outlet 211, thereby ensuring the protection of the electrical cabinet 10.

[0059] In the embodiment, the arrangement of the guide plate 224 makes it not only form part of the avoidance gap 01, but also guide the accumulated water to the air outlet 2221 in time when water enters the protective cover 20, thereby ensuring the protection of the electrical cabinet 10.

[0060] In the embodiment, when the electrical system is arranged along the Y axis, the upstream hot air flow is not easy to interfere with the air inlet 13 of the downstream cabinet, thereby reducing the floor area and ensuring the heat dissipation efficiency.

[0061] The above description and the examples are intended to explain the scope of the present application, but not to limit the scope of the present application. Modifications, equivalent replacements or other improvements based on the conception of the present application or the above examples, which can be obtained by those skilled in the art with common knowledge, common technical knowledge and / or prior art, through logical analysis, reasoning or limited tests, shall be included in the scope of the present application.

Claims

1. A protection assembly (100) for an electrical cabinet (10), wherein the cabinet body of the electrical cabinet (10) is provided with an air outlet (12) opened along a Y-axis direction, characterized in that, The protection assembly (100) comprises a protection structure and a protection cover (20); the protection structure is arranged in the protection cover (20) and comprises at least one air outlet louver (30) and at least two protection cottons (40) arranged on both sides of the air outlet louver (30) along the Y-axis direction; the air outlet louver (30) is adapted to be inclined to blow air; the protection cover (20) penetrates the air outlet (12) and forms a first protection part (21) located in the cabinet and a second protection part (22) located outside the cabinet, and the second protection part (22) is provided with an air outlet (221) located outside the protection structure; The second protection part (22) is provided with an avoiding gap (01) adapted to avoid the protection cover (20) of the adjacent electrical cabinet (10) on both sides along the X-axis direction; the second protection part (22) is provided with a protruding part (223) protruding in the middle along the X-axis direction; The protruding part (223) is provided with a guide plate (224) extending in the vertical direction on both sides along the X-axis direction.

2. A protective assembly (100) as claimed in claim 1, characterized in that The protection structure is located in the middle of the protection cover (20) along the Y-axis direction; the length ratio of the second protection part (22) to the first protection part (21) along the Y-axis direction is less than 2.

3. A protective assembly (100) as claimed in claim 2, characterised in that, The protection structure comprises one air outlet louver (30) and two protection cottons (40), and the two protection cottons (40) are arranged in the first protection part (21) and the second protection part (22) respectively, wherein the protection cotton (40) in the first protection part (21) is a first protection cotton (41), the protection cotton (40) in the second protection part (22) is a second protection cotton (42), and the distance between the second protection cotton (42) and the air outlet louver (30) is greater than the distance between the first protection cotton (41) and the air outlet louver (30).

4. A guard assembly (100) as claimed in claim 3, characterised in that, The ventilation rates of the protection cottons (40) are consistent, the air outlet louver (30) is arranged in the first protection part (21), and the distance between the second protection cotton (42) and the air outlet louver (30) is at least four times the distance between the first protection cotton (41) and the air outlet louver (30).

5. A protective assembly (100) as claimed in claim 1, characterized in that The side part of the second protection part (22) is provided with an air outlet (221) for discharging air in a direction away from the air inlet (13); and the bottom part of the second protection part (22) is provided with a drainage opening (2221) at one end away from the air outlet (12) along the Y-axis direction.

6. A protective assembly (100) as claimed in claim 5, characterised in that, The air outlet (221) is adapted to discharge air in the horizontal direction; the bottom part of the second protection part (22) is provided with a drainage plate (222) inclined outward from top to bottom, the bottom end of the drainage plate (222) is provided with the drainage opening (2221); and the first protection part (21) is provided with a ventilation opening (211) opposite to the air outlet louver (30); and the bottom end of the ventilation opening (211) is lower than the bottom end of the air outlet (12).

7. A protective assembly (100) as claimed in claim 6, characterised in that, The distance between the two guide plates (224) gradually increases in a direction close to the air outlet (12); the guide plates (224) form part of the avoiding gap (01); and the drainage opening (2221) is arranged in the protruding part (223).

8. A cabinet, characterized in that The protection assembly (100) comprises an electrical cabinet (10) and the protection assembly (100) according to any one of claims 1-7.

9. An electrical system, characterized by The parallel machine assembly comprises several cabinets arranged along the Y-axis direction, and each cabinet comprises at least two cabinets as claimed in claim 8, and the cabinets are adjacent along the X-axis direction; the electrical cabinet (10) is provided with two cabinet doors (11) parallel to each other and opposite along the Y-axis direction, and the two cabinet doors (11) are symmetrically provided with air outlets (12), and at least one cabinet door (11) is provided with an air inlet (13) below the air outlet (12).

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