CN218977013U - Protection device for ventilation window on top of electrical equipment - Google Patents
Protection device for ventilation window on top of electrical equipment Download PDFInfo
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- CN218977013U CN218977013U CN202223017924.1U CN202223017924U CN218977013U CN 218977013 U CN218977013 U CN 218977013U CN 202223017924 U CN202223017924 U CN 202223017924U CN 218977013 U CN218977013 U CN 218977013U
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- outer cover
- frame wall
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Abstract
The utility model discloses a protection device for a top ventilation window of electrical equipment, which is arranged on the outer side of the top ventilation window and comprises an inner frame, an outer cover and a ventilation device, wherein the outer cover is positioned outside the inner frame, the inner frame comprises a plurality of inner frame wall surfaces, the outer cover comprises a plurality of outer cover wall surfaces, a plurality of shutter holes are formed in each of the inner frame wall surfaces and the outer cover wall surfaces, the ventilation device is positioned between the inner frame wall surfaces and the outer cover wall surfaces, and an angle of 60-120 degrees is formed between the inner frame wall surfaces and the plane where the outer cover wall surfaces and the top ventilation window are positioned. The protection device can meet the requirement of an IP55 protection test, and is small in occupied space and high in exhaust efficiency.
Description
Technical Field
The utility model relates to a device protection device, in particular to a protection device for a top ventilation window of electrical equipment.
Background
Electrical equipment in the forms of boxes, cabinets, tables, screens and the like is widely applied to various industries, and some current application platforms require related electrical equipment to meet the protection requirement of a certain IP protection level so as to adapt to the normal operation of the equipment in certain environments. The IP protection level is composed of two numbers, wherein the first number represents the level of dust prevention and foreign object invasion prevention of the electrical equipment, and the second number represents the airtight level of moisture prevention and water invasion prevention of the electrical equipment. The larger these two numbers represent a higher protection level of the electrical device.
In the prior art, as shown in fig. 1, a common IP55 protection device for a top ventilation window of an electrical apparatus mainly adopts an outer cover, an inner cover, an outer layer louver position plate, an inner layer louver plate, and ventilation cotton to form a structural component, and is installed at a top ventilation window 1 of the electrical apparatus. However, the volume of the protection device is relatively large, and when the top ventilation opening of the electrical equipment is relatively large or other devices are arranged near the top ventilation window of the electrical equipment, the design of the device is very difficult due to the appearance and safety collision problems caused by the overlarge volume of the protection device. In addition, the air flow discharged from the ventilation opening at the top of the electrical equipment is required to be discharged through the louver holes at the periphery of the bottom of the protection device, and the air duct turns by two 90 degrees, so that the air is difficult to discharge.
The patent CN204088950U discloses a ventilation device of power distribution equipment, which comprises a cabinet top plate, wherein an air outlet filter screen is arranged on the cabinet top plate, a first protection plate and a second protection plate are sequentially arranged around the air outlet filter screen, the first protection plate is positioned on the inner side of the second protection plate, and the first protection plate and the second protection plate jointly enclose a first protection groove with a U-shaped section; a top cover plate supporting piece is also arranged on the top plate of the cabinet body; a top cover plate is fixed above the top plate of the cabinet body through a top cover plate supporting piece, a third protection plate and a fourth protection plate are arranged on one side of the top cover plate facing the top plate of the cabinet body, the third protection plate is positioned on the inner side of the fourth protection plate, and the third protection plate and the fourth protection plate jointly enclose a second protection groove with a U-shaped section; the first protective groove and the second protective groove are arranged in an overlapping mode in a relatively crossing mode. The protection effect of this scheme is poor, and it is difficult to reach the protection level of IP 55.
In view of the above technical problems, the present utility model is particularly directed.
Disclosure of Invention
The utility model mainly aims to provide a protection device for a top ventilation window of electrical equipment, which is used for
In order to achieve the above purpose, the utility model provides a protection device for a top ventilation window of an electrical apparatus, the protection device is arranged on the outer side of the top ventilation window, the protection device comprises an inner frame, an outer cover and a ventilation device, the outer cover is positioned on the outer side of the inner frame, the inner frame comprises a plurality of inner frame wall surfaces, the outer cover comprises a plurality of outer cover wall surfaces, a plurality of louver holes are formed in each of the inner frame wall surfaces and the outer cover wall surfaces, the ventilation device is positioned between the inner frame wall surfaces and the outer cover wall surfaces, and an angle of 60-120 degrees is formed between the inner frame wall surfaces and the plane where the top ventilation window is positioned.
Further, the convex edges of the shutter holes on the wall surface of the inner frame face outwards, and the opening direction is downwards; the convex edge of the shutter hole on the wall surface of the outer cover faces inwards, and the opening direction is downward.
Further, the louver holes are arranged in a matrix shape on the inner frame wall surface and the outer cover wall surface.
Further, the distance between the inner frame wall and the outer cover wall is smaller than the sum of the height of the convex edge of the shutter hole on the inner frame wall, the height of the convex edge of the shutter hole on the outer cover wall and the thickness of the ventilation device.
Further, the lower part of the inner frame is provided with a plurality of lower support plates which are mutually separated, and the lower support plates are formed by outwards extending the bottom of the wall surface of the inner frame.
Further, at least two lower support plate parts at the bottom of the inner frame wall surface are bent upwards to form support plate grooves, and the support plate grooves are fixedly connected with the corresponding positions of the outer cover wall surface.
Further, the ventilation device is placed on the plurality of lower support plates and in the support plate groove, and the height of the ventilation device is larger than that of the wall surface of the inner frame.
Further, the bottom of the inner frame wall surface is provided with a plurality of first gaps, and the first gaps are positioned among the plurality of lower support plates; the bottom of the wall surface of the outer cover is provided with a plurality of second notches.
Further, the top of the inner frame wall surface is provided with an inwardly extending upper edge which is fixedly connected with the corresponding position of the outer cover.
Further, the bottom of the housing wall has a lower rim extending outwardly to fixedly connect with the top vent window.
Further, the outer cover wall surface and the inner frame wall surface are parallel to each other.
By applying the technical scheme of the utility model, at least the following beneficial effects are realized:
1. the protection device adopts a multi-layer composite structure, and the ventilation device is arranged in the middle of the protection device, so that the protection device can meet the IP55 protection grade requirement;
2. the protective device has smaller volume and smaller space occupied by the periphery of the top ventilation window of the electrical equipment, thereby avoiding the problem of safety collision caused by overlarge protective device;
3. the internal air flow of the protection device is discharged smoothly, so that the exhaust efficiency is improved;
4. the protective device has compact and simple structure, the inner frame and the outer cover can be processed by adopting integrated sheet metal, and the protective device is convenient to process and has economic value.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a front cross-sectional view of an IP55 guard of a prior art appliance top ventilation window;
figure 2 shows a front cross-sectional view of a protective device according to an embodiment of the utility model mounted in a top ventilation window;
figure 3 shows a schematic view of an inner frame of a protective device according to an embodiment of the utility model;
FIG. 4 shows a schematic view of a shield apparatus housing in accordance with an embodiment of the present utility model;
figure 5 illustrates a front cross-sectional view of a shield apparatus in accordance with an embodiment of the present utility model;
FIG. 6 shows a schematic view of a ventilation device installation of an embodiment of the present utility model;
fig. 7 shows a front view and a top view of a top vent window of an embodiment of the utility model.
Wherein the above figures include the following reference numerals:
1. a top ventilation window; 2. an inner frame; 21. the wall surface of the inner frame; 22. a lower support plate; 221. a support plate groove; 23. a first notch; 24. an upper edge; 3. an outer cover; 31. a housing wall; 32. a second notch; 33. a lower edge; 4. a ventilation device; 50. a louver aperture; 501. a convex edge; 502. an opening.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The utility model is described in further detail below in connection with specific examples which are not to be construed as limiting the scope of the utility model as claimed. The term "comprising" when used indicates the presence of a feature, but does not preclude the presence or addition of one or more other features; the positional or positional relationship indicated by the terms "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., are based on the positional or positional relationship shown in the drawings, are for convenience of description only, and are not indicative or implying that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model; furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description, unless clearly indicated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Examples:
based on the problem that current electrical equipment top ventilation window's protector volume is too big, exhaust is comparatively difficult, the application provides a set up vertical wall face protector's scheme in top ventilation window's outside, on satisfying the basis that IP55 protected the requirement, reduced the volume to exhaust efficiency has been improved.
Specifically, as shown in fig. 2, the protection device is installed at the outside of the top ventilation window 1 of the electrical equipment, and on the top plate of the electrical equipment, and the electrical equipment is exhausted upward through the top ventilation window 1. The protection device mainly comprises an inner frame 2, an outer cover 3 and ventilation means 4, wherein the outer cover 3 is positioned outside the inner frame 2. The outer cover 3 and the inner frame 2 are provided with a plurality of wall surfaces which form an angle of 60-120 degrees with the plane of the top ventilation window 1.
All open a plurality of louvres 50 on a plurality of wall in this application, follow top ventilation window 1 top exhaust gas accessible inside casing 2 and the shutter mouth exhaust on the dustcoat 3 wall for from electrical equipment top ventilation window exhaust air current need not to change twice angles, thereby more convenient smooth and easy exhaust gas has improved exhaust efficiency.
As shown in fig. 3, the inner frame 2 of the protection device in the present application includes a plurality of inner frame wall surfaces 21, and the plurality of inner frame wall surfaces 21 enclose a hollow protection cover. Preferably, the inner frame wall surface 21 is a vertical wall surface, the cross section of the inner frame is rectangular, the drawing is only schematic, and it should be understood that the cross section of the inner frame 2 of the protection device and the angle between the inner frame wall surface 21 and the top ventilation window are not particularly limited in the present application.
In addition, a plurality of lower support plates 22 are arranged at the lower part of the inner frame 2, the lower support plates 22 are separated from each other, and the lower support plates 22 are formed by extending outwards from the bottom of the inner frame wall surface 21. The lower support plate 22 is used for being closely attached to the top plate of the electrical equipment.
As shown in fig. 4, the protection device in the application further comprises an outer cover 3, the top surface of the outer cover is a closed top surface, the cross section of the outer cover corresponds to that of the inner frame 2, the outer cover 3, the inner frame 2 and the ventilation device 4 arranged between the outer cover and the inner frame are tightly attached, and the dustproof and waterproof effects are further improved. Similarly, the outer cover 3 also includes a plurality of outer cover wall surfaces 31, and the outer cover wall surfaces 31 are parallel to and corresponding to the inner frame wall surfaces 21, so that the dustproof and waterproof effects are further improved.
Further, in the present application, the inner frame wall 21 and the outer cover wall 31 are each provided with a plurality of louver holes 50, and preferably, the louver holes 50 are arranged in a matrix shape on the inner frame wall 21 and the outer cover wall 31, so as to improve the exhaust efficiency.
The connection relation between the inner frame and the outer cover is further optimized.
Referring to fig. 3 and 4, at least two lower support plates 22 are bent upward at the bottom of each inner frame wall 21 to form support plate grooves 221, and the support plate grooves 221 are fixedly connected to corresponding positions of the outer cover wall 31. Preferably, a threaded hole is formed at the upward bending position of the support plate groove 221, and a threaded hole is formed at the corresponding position of the lower part of each outer cover wall surface 31, so that the support plate groove can be fixedly connected by adopting a combined screw.
Further, an upper edge 24 extending inwards is arranged at the top of each inner frame wall surface 21, and the upper edge 24 is fixedly connected with the corresponding position of the outer cover 3. Preferably, each upper rim 24 on the top of the inner frame 2 is provided with a mounting hole, and a plurality of riveting screws are arranged on the closed top surface of the outer cover 3 and correspond to the mounting holes on the upper rim 24, and are connected through flat pads, elastic pads and nuts.
As shown in fig. 5, the ventilation means 4 are located between the inner frame wall 21 and the outer cover wall 31, by means of which ventilation means the ventilation and dust-proof function of the protective device is achieved. The ventilation device may use one of materials including ventilation cotton, mesh, metal shielding mesh, and honeycomb panel. Preferably, this embodiment employs ventilation wool.
Specifically, the ventilation device 4 is sandwiched between the louver Kong Tubian 501 on the inner frame wall 21 and the louver hole flange 501 on the outer cover wall 31. The convex edge 501 of the louver hole 50 faces outwards, and the opening 502 faces downwards; the flange 501 of the louver hole 50 on the housing wall 31 faces inward, and the opening 502 faces downward.
For the installation of the ventilation means 4, reference is made to fig. 6, in which the ventilation means 4 are placed on a plurality of lower support plates 22 and in the support plate grooves 221, the height of the ventilation means 4 being greater than the height of the inner frame wall 21. Preferably, the ventilation device 4 is mounted to a height 5mm higher than the height of the inner frame wall 21 so that the ventilation device completely fills the space between the inner frame wall and the outer cover wall in the longitudinal direction to further improve the dust-proof effect.
In addition, the distance between the inner frame wall surface 21 and the outer cover wall surface 31 after the protective device is installed is smaller than the sum of the height of the convex edge 501 of the louver holes 50 on the inner frame wall surface 21, the height of the convex edge 501 of the louver holes 50 on the outer cover wall surface 31 and the thickness of the ventilation device 4, so that the ventilation cotton is compressed to a certain degree. In this embodiment, the distance between the inner frame wall surface and the outer cover wall surface may be designed to be smaller than the theoretical sum of the heights of the louver hole convex edges on the inner frame wall surface and the louver hole convex edges on the outer cover wall surface and the thickness of the ventilation cotton by 2mm, so as to ensure that the ventilation device completely fills the space between the inner frame wall surface and the outer cover wall surface in the transverse direction, so as to further improve the dustproof effect.
As shown in fig. 3 and 4, a plurality of first notches 23 are formed at the bottom of the inner frame wall 21, and the first notches 23 are located between the plurality of lower support plates 22; and the bottom of the housing wall 31 also has a plurality of second notches 32. The first notch 23 and the second notch 32 serve to allow part of the water entering the guard to flow out along the bottom of the inner frame and the outer cover.
The heights of the first notch 23 and the second notch 32 should be within a certain range, and if the height exceeds a certain range, the phenomenon of water turning-in will occur. Preferably, in the present embodiment, the notch height of the first notch 23 is 2.5mm, the notch height of the second notch 32 is 2.5mm, and the opening size is 2.5mm.
Furthermore, a lower rim 33, which extends outwards and is fixedly connected to the top ventilation window 1, is provided at the bottom of the housing wall 31. Preferably, as shown in fig. 7, a clinching screw is provided on the top plate near the top ventilation window 1, and a mounting hole is provided on the lower rim 33.
When the protective device is installed, firstly, the ventilation device is placed in the support plate groove of the inner frame, and then the outer cover is covered; then the top is connected with the outer cover and the inner frame through a flat pad, an elastic pad and a nut, and the side face is connected with the outer cover and the inner frame through a combined screw; and finally, fixing the whole protection device at the top plate of the electrical equipment by adopting a flat pad, an elastic pad and a nut, and covering the top ventilation window.
Further, referring to fig. 2, a certain installation margin is provided between the guard and the outer wall of the top ventilation window, so as to facilitate the installation of the guard onto the top plate. The arc transition is carried out between the outer wall of the top ventilation window and the top plate, the arc radius is R, and the distance between the inner frame wall surface of the protection device and the outer wall of the top ventilation window is R+2mm. The total height of the protective device should be less than 100mm, and the distance between the outer cover wall surface of the protective device and the outer wall of the top ventilation window is controlled to be about 25 mm. The protection device is arranged on the periphery of the top ventilation window of the electrical equipment, so that the occupied space is small, and the problem of safe collision caused by overlarge protection device can be avoided.
In summary, from the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: 1. the protection device adopts a multi-layer composite structure, and the ventilation device is arranged in the middle of the protection device, so that the protection device can meet the IP55 protection grade requirement; 2. the protective device has smaller volume and smaller space occupied by the periphery of the top ventilation window of the electrical equipment, thereby avoiding the problem of safety collision caused by overlarge protective device; 3. the internal air flow of the protection device is discharged smoothly, so that the exhaust efficiency is improved; 4. the protective device has compact and simple structure, the inner frame and the outer cover can be processed by adopting integrated sheet metal, and the protective device is convenient to process and has economic value.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (11)
1. The utility model provides a protector of electrical equipment top ventilation window, protector installs the outside of top ventilation window (1), protector includes inside casing (2), dustcoat (3) and ventilation device (4), dustcoat (3) are located the outside of inside casing (2), inside casing (2) include a plurality of inside casing wall (21), dustcoat (3) include a plurality of dustcoat wall (31), inside casing wall (21) with all open a plurality of shutter holes (50) on dustcoat wall (31), ventilation device (4) are located between inside casing wall (21) and dustcoat wall (31), its characterized in that: the inner frame wall surface (21) and the outer cover wall surface (31) form an angle of 60-120 degrees with the plane of the top ventilation window (1).
2. The protective apparatus according to claim 1, wherein: the convex edges (501) of the shutter holes (50) on the inner frame wall surface (21) face outwards, and the opening (502) is downward; the flange (501) of the louver hole (50) on the outer cover wall surface (31) faces inwards, and the opening (502) is downward.
3. The guard according to claim 2, wherein: the louver holes (50) are arranged in a matrix on the inner frame wall surface (21) and the outer cover wall surface (31).
4. A protective device according to claim 2 or 3, wherein: the distance between the inner frame wall surface (21) and the outer cover wall surface (31) is smaller than the sum of the height of the convex edge (501) of the shutter hole (50) on the inner frame wall surface (21), the height of the convex edge (501) of the shutter hole (50) on the outer cover wall surface (31) and the thickness of the ventilation device (4).
5. A protective device according to claim 3, wherein: the lower part of the inner frame (2) is provided with a plurality of lower support plates (22), the lower support plates (22) are mutually separated, and the lower support plates (22) are formed by outwards extending the bottom of the inner frame wall surface (21).
6. The guard of claim 5, wherein: at least two lower support plates (22) are bent upwards at the bottom of the inner frame wall surface (21) to form support plate grooves (221), and the support plate grooves (221) are fixedly connected with the corresponding positions of the outer cover wall surface (31).
7. The guard of claim 6, wherein: the ventilation devices (4) are placed on the plurality of lower support plates (22) and in the support plate grooves (221), and the height of the ventilation devices (4) is larger than that of the inner frame wall surface (21).
8. The guard of claim 7, wherein: the bottom of the inner frame wall surface (21) is provided with a plurality of first notches (23), and the first notches (23) are positioned among the plurality of lower support plates (22); the bottom of the outer cover wall surface (31) is provided with a plurality of second notches (32).
9. The protective apparatus according to any one of claims 5-8, wherein: the top of the inner frame wall surface (21) is provided with an upper edge (24) extending inwards, and the upper edge (24) is fixedly connected with the corresponding position of the outer cover (3).
10. The protective apparatus according to any one of claims 5-8, wherein: the bottom of the outer cover wall surface (31) is provided with a lower edge (33) which extends outwards and is fixedly connected with the top ventilation window (1).
11. The protective apparatus according to any one of claims 5-8, wherein: the outer cover wall surface (31) and the inner frame wall surface (21) are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017924.1U CN218977013U (en) | 2022-11-14 | 2022-11-14 | Protection device for ventilation window on top of electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017924.1U CN218977013U (en) | 2022-11-14 | 2022-11-14 | Protection device for ventilation window on top of electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218977013U true CN218977013U (en) | 2023-05-05 |
Family
ID=86147630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223017924.1U Active CN218977013U (en) | 2022-11-14 | 2022-11-14 | Protection device for ventilation window on top of electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218977013U (en) |
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2022
- 2022-11-14 CN CN202223017924.1U patent/CN218977013U/en active Active
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Address after: 100094 Room 101, 1st floor, building 5, yard 5, Yongfeng Road, Haidian District, Beijing Patentee after: CHINA TECHENERGY Co.,Ltd. Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Patentee after: China Guanghe Digital Technology Co.,Ltd. Address before: 100094 Room 101, 1st floor, building 5, yard 5, Yongfeng Road, Haidian District, Beijing Patentee before: CHINA TECHENERGY Co.,Ltd. Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Patentee before: SHANGHAI CHINA NUCLEAR POWER ENGINEERING TECHNOLOGY CO.,LTD. |