Relay protection screen cabinet of transformer substation

Abstract

The utility model relates to the technical field of relay protection screen cabinets, in particular to a relay protection screen cabinet of a transformer substation, which comprises a cabinet body, a telescopic assembly arranged at the center of a back plate in the cabinet body, a mounting plate arranged at the end part of the telescopic assembly far away from the back plate of the cabinet body, and a fan part arranged at the center of the back plate of the cabinet body. A frame is fixedly welded to the outer side of the back plate of the cabinet body and corresponds to the fan part, a dustproof plate is inserted into the frame, and a cleaning assembly is arranged on the outer surface of the dustproof plate outside the frame. According to the relay protection screen cabinet of the transformer substation, the mounting plate can stretch back and forth through the fixing columns, the fixing rods and the supporting columns arranged in the telescopic assembly, electric appliance elements can be conveniently mounted on the mounting plate, and dust on the dustproof plate is cleaned through the threaded rods, the sliding rods, the sliding plates, the scraping plates and the brushes arranged in the cleaning assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of relay protection panel cabinets, in particular to a relay protection panel cabinet of a transformer substation. Background Art

[0002] Substation refers to the place in the power system where voltage and current are transformed, electric energy is received and distributed. The substation in the power plant is a step-up substation, which boosts the electric energy generated by the generator and feeds it into the high-voltage power grid. Relay protection is an important measure to detect faults or abnormal conditions in the power system, thereby issuing alarm signals, or directly isolating and removing the faulty part.

[0003] The utility model patent with authorization announcement number CN219164054U discloses a relay protection screen cabinet, including a cabinet body and multiple chassis for holding relay protection devices, the cabinet body includes a casing and a cabinet door for opening and closing the casing, multiple chassis are placed in the casing at intervals, a first ventilation hole is provided on the cabinet door, a first fan is provided on the casing, and the installation spacing between two adjacent chassis is 1U to 3U.

[0004] Although the technical solution sets a first ventilation hole on the cabinet door and a first fan on the casing, by starting the first fan, air enters the casing from the first ventilation hole, accelerates the air flow in the casing, and then exhausts the air to dissipate heat for the relay protection device. The installation spacing between two adjacent chassis is set to 1U~3U. By setting the installation spacing of the chassis within this range, the internal space of the relay protection panel cabinet is fully utilized, and the heat dissipation effect of the relay protection device is also guaranteed. However, under this technical solution, it is inconvenient to install electrical components in the cabinet, and the dust during ventilation is not cleaned to block the vents. In view of this, we propose a relay protection panel cabinet for a substation. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a relay protection cabinet for a substation.

[0006] In a first aspect, the present application provides a relay protection panel cabinet for a substation, comprising a cabinet, a telescopic assembly is installed at the center of a back plate in the cabinet, a mounting plate is provided at the end of the telescopic assembly away from the cabinet back plate, a fan component is installed at the center of the cabinet back plate, a frame is welded and fixed on the outer side of the cabinet back plate at a position corresponding to the fan component, a dustproof plate is inserted inside the frame, and a cleaning component is provided on the outer side of the frame on the outer surface of the dustproof plate;

[0007] The telescopic assembly comprises four front-to-back symmetrical fixing columns arranged in groups of two, with through holes and sliding holes respectively provided at the upper and lower ends of the fixing columns, a fixing rod being slidably inserted between two horizontally symmetrical sliding holes, a fixing rod being rotatably inserted between two horizontally symmetrical through holes, and a cross arm being installed between two vertically symmetrical fixing rods;

[0008] The cleaning assembly includes a threaded rod and a sliding rod which are rotatably connected to the upper and lower ends of the outer side of the frame respectively, and a same sliding plate is slidably connected between the threaded rod and the sliding rod. A scraper and a brush which abut against the surface of the dustproof plate are installed side by side at one end of the sliding plate.

[0009] According to the technical solution provided in the embodiment of the present application, the cabinet body is hinged with a cabinet door at the front opening, the outer wall of the cabinet door is provided with a first handle on the outer wall on the side away from the hinged end, a transparent glass for convenient observation of components in the cabinet is embedded in the center of the cabinet door, and a door lock is installed on the inner wall on the side away from the hinged end.

[0010] According to the technical solution provided in the embodiment of the present application, ventilation blades are provided on the left and right side walls of the cabinet, supporting feet are provided at the four corners of the bottom end of the cabinet, and a wire hole for the wire to pass through is opened at the center of the bottom plate of the cabinet.

[0011] According to the technical solution provided in the embodiment of the present application, the back side of the mounting plate is welded and fixed to the front side walls of the two fixing columns located on the front side, and second handles are provided at both ends of the front side walls of the mounting plate.

[0012] According to the technical solution provided in the embodiment of the present application, the sliding hole is in the shape of an elongated hole, and the inner width of the sliding hole is adapted to the outer diameter of the fixing rod, and the through hole is circular and the inner diameter of the through hole is adapted to the outer diameter of the fixing rod.

[0013] According to the technical solution provided in the embodiment of the present application, the cross arm is formed by a plurality of support columns that are crossed with each other in an "X" shape and are hinged at the head and tail through hinged columns in sequence, and the middle parts of the two support columns that are crossed in an "X" shape are rotatably connected to the hinged column.

[0014] According to the technical solution provided in the embodiment of the present application, a ventilation hole is opened at the center of the cabinet back plate, and the fan component includes a mounting frame welded and fixed in the ventilation hole, and a fan is installed on the mounting frame.

[0015] According to the technical solution provided in the embodiment of the present application, a slot with an open top and a closed bottom and adapted to the size of the dustproof plate is opened in the frame, and the outer cross-sectional size of the dustproof plate is greater than or equal to the inner size of the frame.

[0016] According to the technical solution provided in the embodiment of the present application, the outer wall of the frame is provided with fixed blocks for rotatably installing the threaded rod and the sliding rod at the four corners, a motor is installed on the outside of a fixed block close to the threaded rod, the output shaft of the motor is coaxially connected to the threaded rod, the scraper and the brush are inserted into the grooves provided on the sliding plate and fixed by a number of locking bolts.

[0017] To summarize, the present technical solution specifically discloses a relay protection panel cabinet for a substation, which includes a cabinet body, a telescopic component installed at the center of the back plate in the cabinet body, a mounting plate provided at the end of the telescopic component away from the cabinet body back plate, a fan component installed at the center of the cabinet body back plate, a frame is welded and fixed at a position corresponding to the fan component on the outer side of the back plate of the cabinet body, a dustproof plate is plugged into the inside of the frame, and a cleaning component is provided on the outer surface of the dustproof plate on the outer side of the frame; the mounting plate can be telescoped back and forth by means of the fixed column, fixed rod and support column provided in the telescopic component, so as to facilitate the installation of electrical components on the mounting plate, and the threaded rod, sliding rod, sliding plate, scraper and brush provided in the cleaning component are used to clean the dust on the dustproof plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the overall structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the cabinet structure in the utility model;

[0022] Figure 4 It is an exploded view of the telescopic component structure in the utility model;

[0023] Figure 5 It is an exploded view of the fan component structure in the utility model;

[0024] Figure 6 It is an exploded view of the cleaning component structure in the utility model.

[0025] In the figure:

[0026] 1. Cabinet body; 11. Cabinet door; 111. First handle; 112. Transparent glass; 113. Door lock; 12. Ventilation leaf; 13. Support foot; 14. Wire hole; 15. Ventilation hole; 16. Frame; 161. Slot; 17. Fixing block;

[0027] 2. Telescopic assembly; 21. Fixed column; 211. Through hole; 212. Sliding hole; 22. Fixed rod; 23. Cross arm; 231. Support column; 24. Articulated column;

[0028] 3. Mounting plate; 31. Second handle;

[0029] 4. fan component; 41. mounting frame; 42. fan;

[0030] 5. Dustproof plate;

[0031] 6. Cleaning assembly; 61. Threaded rod; 62. Sliding rod; 63. Sliding plate; 631. Groove; 64. Scraper; 65. Brush; 66. Motor; 67. Locking bolt. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] See also Figure 1-Figure 6 A relay protection panel cabinet of a substation includes a cabinet body 1, a telescopic component 2 is installed at the center of the back plate in the cabinet body 1, a mounting plate 3 is provided at the end of the telescopic component 2 away from the back plate of the cabinet body 1, a fan component 4 is installed at the center of the back plate of the cabinet body 1, a frame 16 is welded and fixed at the outer side of the back plate of the cabinet body 1 at the corresponding position of the fan component 4, a dustproof plate 5 is inserted in the frame 16, and a cleaning component 6 is provided on the outer surface of the dustproof plate 5 on the outer side of the frame 16;

[0035] The telescopic assembly 2 includes four fixed columns 21 that are symmetrical in front and back in groups of two. The fixed columns 21 are respectively provided with through holes 211 and sliding holes 212 at the upper and lower ends. A fixed rod 22 is slidably inserted between two horizontally symmetrical sliding holes 212, a fixed rod 22 is rotatably inserted between two horizontally symmetrical through holes 211, and a cross arm 23 is installed between two vertically symmetrical fixed rods 22.

[0036] The cleaning assembly 6 includes a threaded rod 61 and a sliding rod 62 which are rotatably connected to the upper and lower ends of the outer side of the frame 16 respectively. The threaded rod 61 and the sliding rod 62 are slidably connected with the same sliding plate 63. A scraper 64 and a brush 65 which abut against the surface of the dustproof plate 5 are installed side by side at one end of the sliding plate 63.

[0037] In this embodiment, the cabinet body 1 is hinged with a cabinet door 11 at the front opening, and the outer wall of the cabinet door 11 is provided with a first handle 111 on the outer wall on the side away from the hinged end. A transparent glass 112 for conveniently observing the components in the cabinet is embedded in the center of the cabinet door 11, and a door lock 113 is installed on the inner wall on the side away from the hinged end of the cabinet door 11; the first handle 111 facilitates opening and closing of the cabinet door 11, and the design of the door lock 113 prevents strangers from opening the cabinet door 11 at will.

[0038] Furthermore, ventilation leaves 12 are provided on the left and right side walls of the cabinet 1, support feet 13 are provided at the four corners of the bottom end of the cabinet 1, and a wire hole 14 for the wire to pass through is opened at the center of the bottom plate of the cabinet 1; the ventilation leaves 12 are conducive to the heat dissipation of the cabinet 1, and the support feet 13 support the cabinet 1 to prevent the cabinet 1 from being too close to the ground.

[0039] Secondly, the back of the mounting plate 3 is welded and fixed to the front side walls of the two fixing columns 21 located at the front side, and second handles 31 are provided at both ends of the front side walls of the mounting plate 3; the second handles 31 facilitate pulling the mounting plate 3 back and forth.

[0040] Furthermore, the sliding hole 212 is in the shape of an elongated hole, and the inner width of the sliding hole 212 is adapted to the outer diameter of the fixing rod 22 , the through hole 211 is circular, and the inner diameter of the through hole 211 is adapted to the outer diameter of the fixing rod 22 ; the adapted size design facilitates the fixing rod 22 to slide back and forth along the sliding hole 212 .

[0041] Secondly, the cross arm 23 is composed of a number of support columns 231 that cross each other in an "X" shape and are hinged at the head and tail through hinge columns 24 in sequence. The middle parts of the two support columns 231 that cross the "X" shape are rotatably connected to the hinge column 24; the "X"-shaped cross arm 23 can realize the extension and retraction of the mounting plate 3 by adjusting the angle between the support column 231 and the horizontal plane.

[0042] Furthermore, a ventilation hole 15 is opened at the center of the back plate of the cabinet 1 , and the fan member 4 includes a mounting frame 41 welded and fixed in the ventilation hole 15 , and a fan 42 is mounted on the mounting frame 41 ; the fan 42 dissipates heat for the electrical components in the cabinet 1 .

[0043] Secondly, a slot 161 with an open top and a closed bottom and adapted to the size of the dustproof plate 5 is provided in the frame 16, and the outer cross-sectional dimension of the dustproof plate 5 is greater than or equal to the inner dimension of the frame 16; the dustproof plate 5 can prevent dust from being sucked into the cabinet 1, thereby extending the service life of the electrical components in the cabinet 1.

[0044] Furthermore, the outer wall of the frame 16 is provided with fixed blocks 17 at the four corners for rotatably installing the threaded rod 61 and the sliding rod 62. A motor 66 is installed on the outer side of a fixed block 17 close to the threaded rod 61. The output shaft of the motor 66 is coaxially connected to the threaded rod 61. The scraper 64 and the brush 65 are inserted into the groove 631 provided on the sliding plate 63 and are fixed by a plurality of locking bolts 67; the motor 66 provides power for the rotation of the threaded rod 61, and the rotation of the threaded rod 61 drives the sliding plate 63 to slide back and forth along the sliding rod 62, so that the scraper 64 and the brush 65 clean the side wall of the dustproof plate 5.

[0045] Working principle: When the relay protection panel cabinet of the substation of the utility model is in use, the user first opens the cabinet door 11 through the first handle 111, and then pulls the mounting plate 3 outward through the second handle 31, the angle between the support column 231 and the horizontal plane is reduced, the mounting plate 3 extends outward, the electrical components are installed on the mounting plate 3, and then the mounting plate 3 is pushed inward so that the electrical components are retracted into the cabinet body 1, and then the fan 42 is started for heat dissipation, and finally the motor 66 is started to drive the threaded rod 61 to rotate, so that the sliding plate 63 slides back and forth along the sliding rod 62, and then the scraper 64 and the brush 65 clean the surface of the dustproof plate 5.

[0046] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features disclosed in the present application but not limited to those with similar functions.

Claims

1. A relay protection panel cabinet for a substation, comprising a cabinet body (1), characterized in that: A telescopic component (2) is installed at the center of the back plate in the cabinet (1); a mounting plate (3) is provided at the end of the telescopic component (2) away from the back plate of the cabinet (1); a fan component (4) is installed at the center of the back plate of the cabinet (1); a frame (16) is welded and fixed to the outer side of the back plate of the cabinet (1) at a position corresponding to the fan component (4); a dustproof plate (5) is inserted into the frame (16); and a cleaning component (6) is provided on the outer side of the frame (16) on the outer surface of the dustproof plate (5); The telescopic assembly (2) comprises four front-to-back symmetrical fixing columns (21) arranged in groups of two, each of which is provided with a through hole (211) and a sliding hole (212) at the upper and lower ends, respectively; a fixing rod (22) is slidably inserted between two horizontally symmetrical sliding holes (212); a fixing rod (22) is rotatably inserted between two horizontally symmetrical through holes (211); and a cross arm (23) is installed between two vertically symmetrical fixing rods (22); The cleaning assembly (6) comprises a threaded rod (61) and a sliding rod (62) which are rotatably connected to the upper and lower ends of the outer side of the frame (16), respectively; a sliding plate (63) is slidably connected between the threaded rod (61) and the sliding rod (62); a scraper (64) and a brush (65) which abut against the surface of the dustproof plate (5) are installed side by side at one end of the sliding plate (63).

2. The relay protection cabinet of the substation according to claim 1, characterized in that: The cabinet body (1) is hingedly connected to a cabinet door (11) at a front opening; an outer wall of the cabinet door (11) is provided with a first handle (111) at a side of the outer wall away from the hinged end; a transparent glass (112) is embedded at the center of the cabinet door (11) for conveniently observing components in the cabinet; and a door lock (113) is installed on an inner wall of the cabinet door (11) at a side away from the hinged end.

3. The relay protection cabinet of the substation according to claim 1, characterized in that: The left and right side walls of the cabinet (1) are both provided with ventilation leaves (12), the four corners of the bottom of the cabinet (1) are both provided with supporting feet (13), and the center of the bottom plate of the cabinet (1) is provided with a wire hole (14) for wires to pass through.

4. The relay protection cabinet of the substation according to claim 1, characterized in that: The back side of the mounting plate (3) is welded and fixed to the front side walls of the two fixing columns (21) located at the front side, and second handles (31) are provided at both ends of the front side wall of the mounting plate (3).

5. The relay protection cabinet of the substation according to claim 1, characterized in that: The sliding hole (212) is in the shape of an elongated hole, and the inner width of the sliding hole (212) is matched with the outer diameter of the fixing rod (22); the through hole (211) is in the shape of a circle, and the inner diameter of the through hole (211) is matched with the outer diameter of the fixing rod (22).

6. The relay protection cabinet of the substation according to claim 1, characterized in that: The cross arm (23) is formed by a plurality of support columns (231) that cross each other in pairs to form an "X"-shaped structure and are hingedly connected at the head and tail via hinge columns (24), and the middle parts of the two support columns (231) that cross the "X"-shaped structure are rotatably connected to the hinge columns (24).

7. The relay protection cabinet of the substation according to claim 1, characterized in that: A ventilation hole (15) is provided at the centre of the back plate of the cabinet (1), and the fan component (4) comprises a mounting frame (41) welded and fixed in the ventilation hole (15), and a fan (42) is mounted on the mounting frame (41).

8. The relay protection cabinet of the substation according to claim 1, characterized in that: The frame (16) is provided with a slot (161) with an open top and a closed bottom and matching the size of the dustproof plate (5), and the outer cross-sectional size of the dustproof plate (5) is greater than or equal to the inner size of the frame (16).

9. The relay protection cabinet of the substation according to claim 1, characterized in that: The outer wall of the frame (16) is provided with fixing blocks (17) at four corners for rotatably mounting the threaded rod (61) and the sliding rod (62). A motor (66) is installed on the outer side of a fixing block (17) close to the threaded rod (61). The output shaft of the motor (66) is coaxially connected to the threaded rod (61). The scraper (64) and the brush (65) are inserted into a groove (631) provided on the sliding plate (63) and fixed by a plurality of locking bolts (67).

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