A high voltage switch cabinet

Abstract

The present application relates to a high-voltage switch cabinet, which relates to the technical field of switch cabinets, comprising a cabinet body and a cabinet door arranged on the cabinet body, wherein a heat dissipation port is arranged on the side of the cabinet body; a support assembly is arranged on the bottom side of the cabinet body, and the support assembly comprises a support fixedly arranged on the bottom side of the cabinet body and a plurality of legs fixedly arranged on the bottom side of the support; an installation through hole is provided on the bottom side of the cabinet body, and a heat dissipation fan is provided in the cabinet body in the installation through hole, and a positioning through hole connected to the installation through hole is provided on the support; a protective assembly is provided on the outer side of the cabinet body, and the protective assembly comprises a first filter cover arranged outside the heat dissipation port and a second filter cover arranged outside the positioning through hole; in the present application, when the switch cabinet is used, the heat dissipation fan is started to draw external gas into the cabinet body through the positioning through hole and the blocking through hole, and the gas in the cabinet body is discharged to the outside through the heat dissipation port; and the possibility of external dust or impurities entering the cabinet body is reduced by using the first filter cover and the second filter cover.

Description

Technical Field

[0001] The present application relates to the technical field of switch cabinets, and in particular to a high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear is an important component of the power system. It plays the role of switching, controlling or protecting in the process of power generation, transmission, distribution, power conversion and consumption. Its voltage level is usually between 3.6kV and 550kV, and it is a key electrical product.

[0003] In the related art, the high-voltage switch cabinet is mainly composed of a cabinet body, a cabinet door and the electrical equipment inside. In order to ensure that the heat generated by the normal operation of the electrical equipment can be quickly dissipated, the cabinet body is provided with corresponding heat dissipation ports.

[0004] However, in areas with strong winds and sand, such as the northwest, this design has obvious limitations: dust and impurities from the outside can easily enter the cabinet through the heat dissipation holes, posing a threat to the normal operation of the internal electrical equipment. Therefore, in view of this shortcoming, we urgently need to improve the design of the high-voltage switchgear to better adapt to the harsh environment and ensure the stable operation of the electrical equipment. Summary of the invention

[0005] The purpose of the present application is to provide a high-voltage switch cabinet to solve the problem in the above-mentioned related art that the high-voltage switch cabinet has poor dustproof performance in areas with strong winds and sand.

[0006] The high-voltage switchgear provided in this application adopts the following technical solution:

[0007] A high-voltage switch cabinet comprises a cabinet body and a cabinet door arranged on the cabinet body, wherein a heat dissipation port is arranged on the side of the cabinet body; a support assembly is arranged on the bottom side of the cabinet body, wherein the support assembly comprises a support fixedly arranged on the bottom side of the cabinet body and a plurality of legs fixedly arranged on the bottom side of the support; a mounting through hole is provided on the bottom side of the cabinet body, a heat dissipation fan is provided in the mounting through hole of the cabinet body, and a positioning through hole connected to the mounting through hole is provided on the support; a protective assembly is arranged on the outer side surface of the cabinet body, wherein the protective assembly comprises a first filter cover arranged outside the heat dissipation port and a second filter cover arranged outside the positioning through hole.

[0008] By adopting the above technical solution, when the switch cabinet is in use, the heat dissipation fan is started to draw external gas into the cabinet through the positioning through hole and the blocking through hole, and the original gas in the cabinet is discharged to the outside through the heat dissipation port; and the possibility of external dust or impurities entering the cabinet is reduced through the first filter cover and the second filter cover, thereby reducing the impact of external dust or impurities on internal electrical components, and improving the protection performance of the high-voltage switch cabinet.

[0009] Optionally, casters are provided on the supporting legs, and a traction handle is hinged on the side of the support, and the traction handle can be rotated to a position that fits the outer side of the cabinet body and is fixed.

[0010] By adopting the above technical solution, due to the installation of the casters and the traction handle, when the switch cabinet needs to be installed or repaired, the support can be pulled by the traction handle to facilitate the movement of the switch cabinet, thereby improving the disassembly and maintenance efficiency of the switch cabinet.

[0011] Optionally, the upper edge of the first filter cover is hinged to the outer side of the cabinet, a locking plate is provided on the lower edge of the first filter cover, and a locking slot for rotatably inserting the locking plate is provided on the cabinet; an elastic clip is provided on the locking plate, and a positioning groove for inserting the elastic clip is provided on the inner wall of the locking slot.

[0012] By adopting the above technical solution, due to the installation setting of the first filter cover, the second filter cover can be selectively flipped over and cleaned; at the same time, due to the matching setting of the elastic clip and the positioning groove, the installation stability of the locking plate inside the locking slot is improved.

[0013] Optionally, a butterfly bolt for fixing the traction handle is provided on the outer side of the cabinet, and the traction handle can be rotated to a position abutting against the outer side surface of the locking plate; a fixing plate is provided on the outer periphery of the traction handle, and a fixing through hole for the butterfly bolt to pass through is provided on the fixing plate, and a fixing screw hole for the butterfly bolt to be screwed into is provided on the cabinet.

[0014] By adopting the above technical solution, due to the coordinated arrangement of the fixing plate and the butterfly bolt, a detachable connection between the traction handle and the cabinet is achieved. While the traction handle is fixed, the traction handle is also used to limit the locking plate on the second filter cover, thereby reducing the possibility of unauthorized personnel opening the first filter cover and improving the assembly stability of the first filter cover.

[0015] Optionally, an abutment plate is provided on the traction handle, and a blocking assembly for blocking the positioning through hole is provided on the bottom side of the cabinet, the blocking assembly includes an elastic member and a blocking plate, a blocking through hole is provided on the blocking plate, and a guide groove is provided on the upper side of the support for the elastic member and the blocking plate to be placed and slide; a sliding outlet connected to the guide groove is provided on the side of the support facing the traction handle; the elastic member is arranged on the side of the blocking plate away from the sliding outlet, and the blocking plate can protrude from the sliding outlet under the squeezing of the elastic member; when the traction handle is fixed to the side of the cabinet, the abutment plate squeezes the protruding part of the blocking plate and makes the positioning through hole and the blocking through hole coincide with each other.

[0016] By adopting the above technical solution, when the traction handle is fixed to the side of the cabinet, the abutment plate squeezes the protrusion of the blocking plate to reset the blocking plate. At this time, the blocking hole and the positioning hole on the blocking plate coincide with each other, and the outside air can enter the cabinet through the exhaust fan; when the traction handle is used to drag the support to move, under the action of the elastic member, the blocking hole and the positioning hole on the support are misaligned, that is, the blocking plate blocks the positioning hole, so that dust or impurities on the dragging road surface cannot enter the cabinet through the positioning hole and the blocking hole.

[0017] Optionally, limiting protrusions are provided on two opposite side surfaces of the blocking plate, and limiting sliding grooves for the limiting protrusions to be placed and slide are opened on the side walls of the guide sliding groove.

[0018] By adopting the above technical solution, due to the coordinated arrangement of the limiting protrusion and the limiting slide groove, during the sliding process of the blocking plate, the limiting protrusion slides synchronously inside the limiting slide groove, thereby limiting the sliding stroke of the blocking plate.

[0019] Optionally, the elastic member includes a telescopic rod and a spring located inside the telescopic rod, the spring in a compressed state is used to squeeze the telescopic rod to expand it; a first slot for inserting one end of the telescopic rod is provided on the side of the blocking plate away from the traction handle, and a second slot for inserting the other end of the telescopic rod is provided on the side wall of the guide slot facing the first slot.

[0020] By adopting the above technical solution, due to the installation arrangement of the elastic member, when the abutment plate is not abutting against the blocking plate, under the compression of the spring, the unfolded telescopic rod pushes the blocking plate, thereby causing the blocking plate to protrude from the sliding outlet.

[0021] Optionally, a guiding slope is provided on the side of the blocking plate facing the traction handle.

[0022] By adopting the above technical solution, when the abutting plate abuts against the protrusion of the sealing plate to reset it, the abutting plate can press against the protrusion of the abutting plate along the guiding slope, thereby facilitating the abutting plate to abut and push the edge of the sealing plate.

[0023] Optionally, a hinged seat is provided on the side of the support facing the traction handle, and a limit block for limiting the rotation of the traction handle is provided on the hinged seat.

[0024] By adopting the above technical solution, due to the setting of the upper limit block on the hinge seat, the rotation range of the traction handle is limited to prevent the traction handle from rotating in a direction away from the cabinet to a state of being in contact with the ground.

[0025] Optionally, an elastic sheath is provided on the outer periphery of the traction handle, and a plurality of anti-slip convex strips are provided on the outer side surface of the elastic sheath.

[0026] By adopting the above technical solution, due to the arrangement of the elastic sheath and the anti-slip convex strips on the elastic sheath, it is convenient for the staff to hold the traction handle and better drive the traction handle to rotate.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When the switch cabinet is in use, the heat dissipation fan is started to draw the external gas into the cabinet through the positioning through hole and the blocking through hole, and the original gas in the cabinet is discharged to the outside through the heat dissipation port; and the possibility of external dust or impurities entering the cabinet is reduced through the first filter cover and the second filter cover, thereby reducing the impact of external dust or impurities on internal electrical components and improving the protection performance of the high-voltage switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 It is a partial cross-sectional structural schematic diagram of the heat dissipation port and the heat dissipation fan arrangement in an embodiment of the present application;

[0032] Figure 3 It is a partial cross-sectional structural schematic diagram of the installation and matching of the first filter cover in the embodiment of the present application;

[0033] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part A;

[0034] Figure 5 It is a partial cross-sectional structural schematic diagram of the installation and matching of the traction handle in the embodiment of the present application;

[0035] Figure 6 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the plugging assembly in the embodiment of the present application;

[0036] Figure 7 It is a schematic diagram of the exploded structure of the installation distribution of the support and the plugging assembly in the embodiment of the present application;

[0037] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the embodiment of the present application embodying the installation and coordination of the blocking plate.

[0038] In the figure, 1, cabinet body; 11, heat dissipation outlet; 12, mounting through hole; 13, locking slot; 131, positioning groove; 14, protective cover; 2, cabinet door; 3, support assembly; 31, support; 311, positioning through hole; 312, guide slide; 3121, second slot; 3122, limit slide; 313, sliding outlet; 32, support foot; 33, caster; 34, traction handle; 341, fixing plate; 342, abutment plate; 35, hinged seat; 351, limit block; 36, elastic sheath; 361 , anti-slip convex strip; 37, butterfly bolt; 4, cooling fan; 5, protection component; 51, first filter cover; 511, filter frame; 512, filter net; 513, locking plate; 5131, placement slot; 52, second filter cover; 53, elastic clip; 531, compression spring; 532, arc-shaped protrusion; 6, blocking component; 61, elastic part; 611, telescopic rod; 612, spring; 62, blocking plate; 621, blocking through hole; 622, first slot; 623, limiting protrusion; 624, guiding slope. DETAILED DESCRIPTION

[0039] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0040] Example:

[0041] Reference Figure 1 and Figure 2 A high-voltage switch cabinet comprises a cabinet body 1 and a cabinet door 2 arranged on the cabinet body 1, a heat dissipation opening 11 is provided on the side of the cabinet body 1 away from the cabinet door 2; a protective cover 14 with an opening facing downward is provided on the outer opening edge of the heat dissipation opening 11 of the cabinet body 1, and a support assembly 3 is provided on the bottom side of the cabinet body 1, wherein the support assembly 3 comprises a support 31 fixedly arranged on the bottom side of the cabinet body 1 and four legs 32 fixed on the bottom side of the support 31;

[0042] A mounting through hole 12 is provided on the bottom side of the cabinet 1, and a heat dissipation fan 4 is provided in the mounting through hole 12 of the cabinet 1. The heat dissipation fan 4 is a conventional fan driven by a motor, and a positioning through hole 311 connected to the mounting through hole 12 is provided on the support 31; the heat dissipation fan 4 draws external gas into the interior of the cabinet 1 through the positioning through hole 311 and the blocking through hole 621, and the original gas in the cabinet 1 is discharged to the outside through the heat dissipation port 11.

[0043] Reference Figure 2 and Figure 3 A protective component 5 is provided on the outer side of the cabinet 1, wherein the protective component 5 includes a first filter cover 51 arranged outside the heat dissipation port 11 and a second filter cover 52 arranged outside the positioning through hole 311. The first filter cover 51 and the second filter cover 52 both include a filter frame 511 and a filter net 512 arranged on the filter frame 511. The arrangement of the first filter cover 51 and the second filter cover 52 reduces the possibility of external dust or other impurities entering the interior of the cabinet 1.

[0044] Reference Figure 3 and Figure 4 The upper edge of the filter frame 511 on the first filter cover 51 is hinged to the outer side of the cabinet 1, and a locking plate 513 is formed on the lower edge of the filter frame 511, and a locking slot 13 for the locking plate 513 to be rotatably inserted is provided on the cabinet 1; an elastic clamping member 53 is provided on the locking plate 513, and the elastic clamping member 53 includes a compression spring 531 and an arc-shaped protrusion 532, wherein the locking plate 513 is provided with a placement groove 5131 for the compression spring 531 and the arc-shaped protrusion 532 to be placed, and the compression spring 531 squeezes the arc-shaped protrusion 532 so that a part of the arc-shaped protrusion 532 protrudes out of the placement groove 5131, and the protruding part of the arc-shaped protrusion 532 is an arc surface, and the arc length corresponding to the arc surface is a minor arc; at the same time, a positioning groove 131 for the protruding part of the arc-shaped protrusion 532 to be inserted is provided on the inner wall of the locking slot 13.

[0045] Reference Figure 5 and Figure 6 The support leg 32 is provided with a caster 33, which is a conventional universal wheel structure and will not be described in detail here; and a traction handle 34 is provided on the side of the support 31, and a hinge seat 35 rotatably connected to the traction handle 34 is provided on the side of the support 31 facing the traction handle 34, and the traction handle 34 can be rotated to a position that fits the outer side of the cabinet 1 and is fixed. A limit block 351 for limiting the rotation of the traction handle 34 is provided on the hinge seat 35, so as to prevent the traction handle 34 from rotating in a direction away from the cabinet 1 to a state of fitting the ground.

[0046] Reference Figure 5 and Figure 6 An elastic sheath 36 is sleeved on the outer periphery of the traction handle 34, wherein the elastic sheath 36 is made of rubber, and a plurality of anti-slip convex strips 361 are formed on the outer surface of the elastic sheath 36, so that it is convenient for the staff to hold the traction handle 34 and better drive the traction handle 34 to rotate.

[0047] Reference Figure 5 A butterfly bolt 37 for fixing the traction handle 34 is provided on the outer side of the cabinet 1, and the traction handle 34 can be rotated to a position abutting against the outer side surface of the locking plate 513; a fixing plate 341 is formed on the outer periphery of the traction handle 34, and a fixing through hole is opened on the fixing plate 341, and a fixing screw hole is opened on the cabinet 1; the butterfly bolt 37 can be screwed into the corresponding fixing screw hole after passing through the fixing through hole to fix the traction handle 34.

[0048] Reference Figure 7 and Figure 8A contact plate 342 is provided on the traction handle 34, and a blocking component 6 for blocking the positioning through hole 311 is provided on the bottom side of the cabinet 1, wherein the blocking component 6 includes an elastic member 61 and a blocking plate 62, and a blocking through hole 621 is provided on the blocking plate 62, and a guide groove 312 is provided on the upper side surface of the support 31 for the elastic member 61 and the blocking plate 62 to be placed and slide.

[0049] Reference Figure 6 and Figure 7 The support 31 is provided with a sliding outlet 313 on the side facing the traction handle 34 and connected to the guide slot 312; the elastic member 61 includes a telescopic rod 611 and a spring 612 located inside the telescopic rod 611, wherein a first slot 622 for one end of the telescopic rod 611 to be embedded and fixed is provided on the side of the blocking plate 62 away from the traction handle 34, and a second slot 3121 for the other end of the telescopic rod 611 to be embedded is opened on the side wall of the guide slot 312 facing the first slot 622;

[0050] Under normal circumstances, the abutment plate 342 does not abut against the blocking plate 62. At this time, under the pressure of the spring 612, the unfolded telescopic rod 611 pushes the blocking plate 62, thereby causing the blocking plate 62 to protrude from the sliding outlet 313; when the traction handle 34 is fixed to the side of the cabinet 1, the abutment plate 342 squeezes the protruding part of the blocking plate 62 to reset the blocking plate 62. At this time, the blocking through hole 621 on the blocking plate 62 coincides with the positioning through hole 311.

[0051] Reference Figure 7 Limiting protrusions 623 are formed on the opposite side surfaces of the blocking plate 62, and a limiting slide groove 3122 is provided on the side wall of the guide slide groove 312 for the limiting protrusion ring to be inserted and slide, so as to limit the sliding stroke of the blocking plate 62; a guiding inclined surface 624 is provided on the side of the blocking plate 62 facing the traction handle 34, and when the abutting plate 342 abuts against the protruding portion of the blocking plate 62 to reset it, the abutting plate 342 can press against the protruding portion of the abutting plate 342 along the guiding inclined surface 624.

[0052] The implementation principle of the embodiment of the present application is:

[0053] When the high-voltage switch cabinet is used, the traction handle 34 is fixed to the side of the cabinet body 1. At this time, the abutment plate 342 presses the protrusion of the blocking plate 62 to reset the blocking plate 62. At this time, the positioning through hole 311 and the blocking through hole 621 on the blocking plate 62 are re-closed; then the heat dissipation fan 4 is started to draw the external air into the cabinet body 1 through the positioning through hole 311 and the blocking through hole 621, and the original air in the cabinet body 1 is discharged to the outside through the heat dissipation port 11;

[0054] When the high-voltage switch cabinet is not in use, the traction handle 34 is rotated away from the cabinet body 1. At this time, the abutment plate 342 releases the limit of the bottom sealing plate 62. The sealing plate 62 can protrude from the sliding outlet 313 under the pressure of the spring 612. At the same time, the sealing through hole 621 is misaligned with the positioning through hole 311, so that the positioning through hole 311 is blocked, and then the cooling fan 4 is turned off.

[0055] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-voltage switch cabinet, comprising a cabinet body (1) and a cabinet door (2) arranged on the cabinet body (1), wherein a heat dissipation port (11) is arranged on a side surface of the cabinet body (1); characterized in that: A support assembly (3) is provided on the bottom side of the cabinet (1), and the support assembly (3) comprises a support (31) fixedly arranged on the bottom side of the cabinet (1) and a plurality of support legs (32) fixedly arranged on the bottom side of the support (31); The cabinet (1) is provided with a mounting through hole (12) on the bottom side, a heat dissipation fan (4) is provided in the mounting through hole (12) of the cabinet (1), and a positioning through hole (311) communicating with the mounting through hole (12) is provided on the support (31); a protective component (5) is provided on the outer side of the cabinet (1), and the protective component (5) comprises a first filter cover (51) provided outside the heat dissipation port (11) and a second filter cover (52) provided outside the positioning through hole (311); The support leg (32) is provided with a caster (33); a traction handle (34) is hingedly connected to the side surface of the support (31); the traction handle (34) can be rotated to a position in contact with the outer side surface of the cabinet (1) and fixed; the traction handle (34) is provided with an abutment plate (342); the bottom side of the cabinet (1) is provided with a blocking component (6) for blocking the positioning through hole (311); the blocking component (6) comprises an elastic member (61) and a blocking plate (62); the blocking plate (62) is provided with a blocking through hole (621); the upper side surface of the support (31) is provided with a guide groove (312) for the elastic member (61) and the blocking plate (62) to be placed and slide; A sliding outlet (313) communicating with the guide slide groove (312) is provided on the side of the support (31) facing the traction handle (34); the blocking plate (62) can protrude from the sliding outlet (313) under the pressure of the elastic member (61); when the traction handle (34) is fixed to the side of the cabinet (1), the abutment plate (342) presses the protruding portion of the blocking plate (62) and makes the positioning through hole (311) and the blocking through hole (621) overlap; The blocking plate (62) is provided with limiting protrusions (623) on two opposite sides, and the side wall of the guide slide groove (312) is provided with a limiting slide groove (3122) for the limiting protrusion (623) to be placed and slide; the elastic member (61) comprises a telescopic rod (611) and a spring (612) located inside the telescopic rod (611), and the spring (612) in a compressed state is used to squeeze the telescopic rod (611) to expand it; A first slot (622) for inserting one end of the telescopic rod (611) is provided on the side of the blocking plate (62) away from the traction handle (34), and a second slot (3121) for inserting the other end of the telescopic rod (611) is provided on the side wall of the guide slot (312) facing the first slot (622).

2. A high voltage switch cabinet according to claim 1, characterized in that: The upper edge of the first filter cover (51) is hinged to the outer side of the cabinet (1), a locking plate (513) is provided on the lower edge of the first filter cover (51), and a locking slot (13) for the locking plate (513) to be rotatably inserted is provided on the cabinet (1); An elastic clamping piece (53) is provided on the locking plate (513), and a positioning groove (131) for inserting the elastic clamping piece (53) is provided on the inner wall of the locking slot (13).

3. A high voltage switch cabinet according to claim 2, characterized in that: The outer side of the cabinet (1) is provided with a butterfly bolt (37) for fixing the traction handle (34), and the traction handle (34) can be rotated to a position abutting against the outer side surface of the locking plate (513); A fixing plate (341) is provided on the outer periphery of the pulling handle (34), a fixing through hole for a butterfly bolt (37) to pass through is provided on the fixing plate (341), and a fixing screw hole for the butterfly bolt (37) to be screwed into is provided on the cabinet (1).

4. A high voltage switch cabinet according to claim 1, characterized in that: The side of the blocking plate (62) facing the traction handle (34) is provided with a guiding inclined surface (624).

5. A high voltage switch cabinet according to claim 1, characterized in that: A hinge seat (35) is provided on the side of the support (31) facing the traction handle (34), and a limit block (351) for limiting the rotation of the traction handle (34) is provided on the hinge seat (35).

6. A high voltage switch cabinet according to claim 1, characterized in that: An elastic sheath (36) is provided on the outer periphery of the traction handle (34), and a plurality of anti-slip convex strips (361) are provided on the outer side surface of the elastic sheath (36).

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