Cabinet body structure and all-insulation ring main unit

Abstract

The utility model relates to a cabinet body structure and an all-insulation ring main unit, and relates to the technical field of electrical cabinets, the cabinet body structure comprises a main body and a cabinet door arranged on the main body, and the main body is provided with heat dissipation holes; a protection assembly is arranged in the main body and comprises a flame-retardant plate fixed to the inner side wall of the main body and a protection plate used for fixing the flame-retardant plate. According to the invention, due to the cooperative arrangement of the protection plate and the flame-retardant plate, when the ring main unit breaks down and catches fire, the side wall of the cabinet body structure is of a triple structure, so that the possibility that the side wall of the main body is burnt through is reduced, the spread and expansion of a fire disaster are avoided, and the economic loss caused by the fire disaster and the harm to workers are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical cabinets, and in particular to a cabinet structure and a fully insulated ring main unit. Background Art

[0002] The fully insulated ring main unit is a device widely used in power systems. With its superior performance and characteristics such as full insulation, compact structure, small size, expandability, all-weather, easy installation and no maintenance required, the fully insulated ring main unit has become the first choice for urban and rural power grid transformation.

[0003] In the related technology, the structure of the fully insulated ring main unit mainly includes a cabinet body and a cabinet door. The interior of the cabinet is equipped with a load switch, a fuse and cables for connecting electrical components. The load switch is used to operate normal current, and the fuse is used to cut off short-circuit current. The combination of the two replaces the circuit breaker and is mainly used in 10KV distribution network systems.

[0004] When a ring main unit fails during application: the cable head or wire in the ring main unit may short-circuit, resulting in excessive current and generating a large amount of heat energy. In severe cases, the cabinet may be burned through; some equipment in the ring main unit (such as circuit breakers, contactors, etc.) may also fail, resulting in abnormal current and overheating, which may also burn through the cabinet, posing a safety hazard. Utility Model Content

[0005] The purpose of this application is to provide a cabinet structure and a fully insulated ring main unit to solve the problem in the above-mentioned related technologies that after a failure occurs in the ring main unit, a large amount of heat energy may be generated in a short period of time, and in serious cases, the cabinet may be easily burned through, posing a safety hazard.

[0006] The cabinet structure provided in this application adopts the following technical solution:

[0007] A cabinet structure comprises a main body and a cabinet door arranged on the main body, wherein the main body is provided with heat dissipation holes; a protective component is arranged inside the main body, and the protective component comprises a flame retardant plate fixed on the inner wall of the main body and a protective plate for fixing the flame retardant plate.

[0008] By adopting the above technical solution, when the ring main unit fails and catches fire, due to the coordinated setting of the protective plate and the flame retardant plate, the side wall of the cabinet structure has a triple structure, thereby reducing the possibility of the side wall of the main body being burned through, avoiding the spread and expansion of the fire, and reducing the economic losses caused by the fire and the harm to the staff.

[0009] Optionally, a pressure dividing hole is provided on the side wall of the main body, and a magnetic attraction component and an adjustment baffle covering the pressure dividing hole are provided on the outer side of the main body. The upper side of the adjustment baffle is hinged to the outer side of the main body, and the magnetic attraction component is used to make the lower edge of the adjustment baffle and the outer side of the main body attract each other.

[0010] By adopting the above technical scheme, during the application of the cabinet, when an arc fault occurs in the ring network cabinet, the gas pressure inside the ring network cabinet suddenly increases, and through the coordinated arrangement of the magnetic suction member, the adjusting baffle and the pressure dividing hole, the adjusting baffle overcomes the magnetic suction force of the magnetic suction member under the action of the gas pressure, rotates upward and then opens the pressure dividing hole, thereby achieving the purpose of reducing the internal pressure of the ring network cabinet, thereby further improving the safety performance of the cabinet structure.

[0011] Optionally, the magnetic attraction component includes a first magnetic block and a second magnetic block that attract each other, the lower edge of the adjustment baffle is provided with a first installation groove for the first magnetic block to be embedded, and the outer side surface of the main body is provided with a second installation groove for the second magnetic block to be embedded.

[0012] By adopting the above technical solution, when the baffle is adjusted to block the pressure dividing hole, the first magnetic block located in the first installation groove abuts against and attracts the second magnetic block located in the second installation groove, thereby achieving the installation and fixation of the first magnetic block and the second magnetic block, and also achieving the blocking of the pressure dividing hole by the adjusting baffle, which is convenient for decompressing the gas when a gas shock occurs subsequently.

[0013] Optionally, a sealing ring is provided on the side of the adjusting baffle, and an annular mounting groove for inserting the sealing ring is opened on the side of the adjusting baffle close to the main body.

[0014] By adopting the above technical solution, when the baffle is adjusted to block the pressure dividing hole, one side of the sealing ring is pressed against the outer side of the main body, thereby reducing the possibility of external gas entering the main body through the pressure dividing hole under normal conditions.

[0015] Optionally, the main body is provided with a first protective cover opening downward at an outer opening edge of the heat dissipation hole.

[0016] By adopting the above technical solution, when the ring network cabinet using the cabinet structure is outdoors, the possibility of external rainwater entering the cabinet through the heat dissipation holes is reduced by installing the first protective cover with the opening facing downward, thereby improving the protective performance of the cabinet structure.

[0017] Optionally, the main body is provided with a second protective cover opening upward at the inner opening edge of the heat dissipation hole.

[0018] By adopting the above technical solution, when the ring network cabinet using the cabinet structure is outdoors, since the inner opening of the heat dissipation hole is installed with a second protective cover with an opening upward, even if rainwater from the outside enters the cabinet through the heat dissipation hole, it will be redirected to the outside along the inner wall of the second protective cover, thereby further reducing the possibility of rainwater from the outside entering the cabinet through the heat dissipation hole.

[0019] Optionally, a blocking member is provided at the opening edge of the second protective cover, and the blocking member includes a blocking frame and a blocking net arranged in the middle of the blocking frame, and the blocking frame is fixedly arranged at the opening edge of the second protective cover.

[0020] By adopting the above technical solution, when the ring main unit using the cabinet structure is outdoors, due to the installation of the barrier, the possibility of external insects or flying insects entering the interior of the main body through the heat dissipation holes is reduced, thereby improving the protective performance of the cabinet structure.

[0021] Optionally, a limit plate is provided opposite to the opening edge of the second protective cover, and a limit groove is provided on the limit plate for the blocking frame to be inserted and slide; an elastic clip is provided on the blocking frame, and a positioning groove is provided on the inner wall of the limit groove for the elastic clip to be inserted.

[0022] By adopting the above technical solution, during the assembly process of the barrier member and the second protective cover, the barrier frame is inserted into the limiting groove on the limiting plate. After the barrier frame is fully inserted into the limiting groove, the elastic clip is inserted into the positioning groove on the inner wall of the limiting groove, thereby realizing the detachable assembly of the barrier member and the second protective cover and improving the assembly stability of the barrier member and the second protective cover.

[0023] A fully insulated ring main unit comprises a cabinet structure as described in any one of the items.

[0024] By adopting the above technical solution, when the fully insulated ring main unit applies the above cabinet structure, the possibility of the side wall of the main body being burned through is reduced, the subsequent spread and expansion of the fire is avoided, and the economic losses caused by the fire and the harm to the staff are reduced.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Due to the coordinated setting of the protective plate and the flame retardant plate, when the ring network cabinet fails and catches fire, the side wall of the cabinet structure is a triple structure, thereby reducing the possibility of the side wall of the main body being burned through, avoiding the spread and expansion of the fire, and reducing the economic losses caused by the fire and the harm to the staff.

[0027] 2. Through the coordinated setting of the magnetic suction piece, the adjusting baffle and the voltage dividing hole, during the application of the cabinet, when an arc fault occurs in the ring network cabinet, the gas pressure inside the ring network cabinet suddenly increases, and the adjusting baffle overcomes the magnetic suction force of the magnetic suction piece under the action of the gas pressure, rotates upward and opens the voltage dividing hole, thereby achieving the purpose of reducing the internal pressure of the ring network cabinet, thereby further improving the safety performance of the cabinet structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0030] Figure 2 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the protection component in Example 1 of the present application;

[0031] Figure 3 It is a schematic diagram of the overall structure of Example 2 of the present application;

[0032] Figure 4 It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the first protective cover and the second protective cover in Example 2 of the present application;

[0033] Figure 5 This is a schematic diagram of the structure of the installation and coordination of the barrier member in Example 2 of the present application;

[0034] Figure 6 yes Figure 5 A magnified schematic diagram of part A;

[0035] Figure 7 It is a partial cross-sectional structural schematic diagram of the installation cooperation of the adjustment baffle in Example 2 of the present application;

[0036] Figure 8 yes Figure 7 Schematic diagram of the enlarged portion B.

[0037] In the figure, 1. main body; 11. heat dissipation hole; 12. first protective cover; 13. second protective cover; 131. limit plate; 1311. limit groove; 1312. positioning groove; 14. barrier; 141. barrier frame; 1411. placement groove; 142. barrier net; 15. elastic clip; 151. spring; 152. arc-shaped protrusion; 16. pressure dividing hole; 17. second installation groove; 2. cabinet door; 3. protective component; 31. flame retardant plate; 32. protective plate; 4. adjustment baffle; 41. first installation groove; 42. annular installation groove; 5. magnetic suction member; 51. first magnetic suction block; 52. second magnetic suction block; 6. sealing ring. DETAILED DESCRIPTION

[0038] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0039] Embodiment 1:

[0040] Reference Figure 1 and Figure 2 A cabinet structure includes a main body 1 and a cabinet door 2 arranged on the main body 1, and heat dissipation holes 11 are opened on two opposite sides of the main body 1. When the ring network cabinet is working, the high-temperature gas inside the main body 1 is discharged to the outside through the heat dissipation holes 11.

[0041] Reference Figure 2 A protective component 3 is provided inside the main body 1, wherein the protective component 3 includes a flame retardant plate 31 fixed on the inner wall of the main body 1 and a protective plate 32 for fixing the flame retardant plate 31, the flame retardant plate 31 and the protective plate 32 are fixed to the inner wall of the main body 1 by bolts, wherein the flame retardant plate 31 is fixedly installed between the protective plate 32 and the side wall of the main body 1; the material of the main body 1 and the protective plate 32 is usually stainless steel plate, and the material of the flame retardant plate 31 is polyurethane plate, which is a partition material with excellent performance, and has the characteristics of uniform thickness, strong pressure resistance, insect resistance and moisture resistance, and also has good heat insulation and sound insulation.

[0042] A fully insulated ring main unit comprises the above cabinet structure. When the fully insulated ring main unit is applied with the above cabinet structure, the anti-burning performance of the cabinet side wall is improved, the subsequent spread and expansion of fire is avoided, and the economic losses caused by the fire and the harm to the staff are reduced.

[0043] The implementation principle of the embodiment of the present application is:

[0044] During the application of the cabinet structure, due to the provision of the protective component 3 on the side wall of the cabinet structure, it is actually a triple anti-burn-through structure (side wall of the main body 1 - flame retardant plate 31 - protective plate 32), thereby reducing the possibility of burning through the cabinet side wall when an internal fault occurs in the ring network cabinet, thereby improving the safety performance of the cabinet structure.

[0045] Embodiment 2:

[0046] Reference Figure 3 and Figure 4 The difference between the embodiment of the present application and embodiment 1 is that a first protective cover 12 with an opening downward is welded and fixed to the outer opening edge of the heat dissipation hole 11 of the main body 1, and a second protective cover 13 with an opening upward is welded and fixed to the inner opening edge of the heat dissipation hole 11 of the main body 1. This arrangement reduces the possibility of external rainwater entering the cabinet through the heat dissipation hole 11.

[0047] Reference Figure 4 A blocking member 14 is provided at the opening edge of the second protective cover 13. The blocking member 14 includes a blocking frame 141 and a blocking net 142 arranged in the middle of the blocking frame 141. The blocking frame 141 is fixedly arranged at the opening edge of the second protective cover 13; wherein a limiting plate 131 is relatively provided at the opening edge of the second protective cover 13, and a limiting groove 1311 for the blocking frame 141 to be inserted and slide is opened on the sides where the two limiting plates 131 are close to each other.

[0048] Reference Figure 5 and Figure 6 An elastic clip 15 is provided on the blocking frame 141, and the elastic clip 15 includes a spring 151 and an arc-shaped protrusion 152. A placement groove 1411 is opened on the blocking frame 141 for the spring 151 and the arc-shaped protrusion 152 to be placed. The spring 151 squeezes the arc-shaped protrusion 152 so that a part of the arc-shaped protrusion 152 protrudes out of the placement groove 1411. The outer side surface of the protruding part of the arc-shaped protrusion 152 is an arc surface and the arc of the cross section is a minor arc. A positioning groove 1312 is opened on the inner wall of the limiting groove 1311 for the protruding part of the arc-shaped protrusion 152 to be inserted. During the assembly process of the blocking member 14 and the second protective cover 13, the blocking frame 141 is inserted into the limiting groove 1311 on the limiting plate 131, and at the same time, the spring 151 squeezes the arc-shaped protrusion 152 so that the protruding part of the arc-shaped protrusion 152 is inserted into the positioning groove 1312, thereby realizing the assembly and fixation of the blocking member 14 and the second protective cover 13.

[0049] Reference Figure 7 and Figure 8 A pressure dividing hole 16 is provided on the side wall of the main body 1 on which the heat dissipation hole 11 is provided, a magnetic attraction component 5 and an adjustment baffle 4 covering the pressure dividing hole 16 are provided on the outer side surface of the main body 1, and the upper side surface of the adjustment baffle 4 is hinged to the outer side surface of the main body 1, wherein the magnetic attraction component 5 is used to make the lower side edge of the adjustment baffle 4 and the outer side surface of the main body 1 attract each other.

[0050] Reference Figure 7 and Figure 8The magnetic member 5 includes a first magnetic block 51 and a second magnetic block 52 that attract each other. The lower edge of the adjusting baffle 4 is provided with a first mounting groove 41 for the first magnetic block 51 to be embedded and fixed. The outer side of the main body 1 is provided with a second mounting groove 17 for the second magnetic block 52 to be embedded and fixed. When the adjusting baffle 4 blocks the pressure dividing hole 16, one side of the first magnetic block 51 abuts against one side of the second magnetic block 52 and attracts each other. When an arc fault occurs in the ring network cabinet, the gas pressure inside the ring network cabinet rises suddenly. Under the action of the gas pressure, the adjusting baffle 4 overcomes the magnetic force of the magnetic member 5 that attracts each other, rotates upward around the hinge axis, and opens the pressure dividing hole 16, thereby achieving the purpose of reducing the internal pressure of the ring network cabinet and improving the safety performance of the cabinet structure.

[0051] Reference Figure 7 and Figure 8 A sealing ring 6 is provided on the side of the adjusting baffle 4, and the sealing ring 6 is made of rubber. An annular mounting groove 42 is provided on the side of the adjusting baffle 4 close to the main body 1 for the sealing ring 6 to be placed in and further fixed by glue; when the adjusting baffle 4 blocks the pressure dividing hole 16, one side of the sealing ring 6 is pressed against the outer side of the main body 1.

[0052] 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.

[0053] 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 cabinet structure, comprising a main body (1) and a cabinet door (2) arranged on the main body (1), wherein the main body (1) is provided with a heat dissipation hole (11); characterized in that: A protection assembly (3) is provided inside the main body (1), and the protection assembly (3) comprises a flame retardant plate (31) fixed on the inner side wall of the main body (1) and a protection plate (32) for fixing the flame retardant plate (31); the flame retardant plate (31) and the protection plate (32) are fixed on the inner wall of the main body (1) by bolts, wherein the flame retardant plate (31) is fixedly installed between the protection plate (32) and the side wall of the main body (1); A pressure dividing hole (16) is provided on the side wall of the main body (1); a magnetic attraction component (5) and an adjustment baffle (4) covering the pressure dividing hole (16) are provided on the outer side surface of the main body (1); the upper side surface of the adjustment baffle (4) is hinged to the outer side surface of the main body (1); and the magnetic attraction component (5) is used to make the lower side edge of the adjustment baffle (4) and the outer side surface of the main body (1) attract each other; The magnetic attraction member (5) comprises a first magnetic attraction block (51) and a second magnetic attraction block (52) which attract each other; a first mounting groove (41) for the first magnetic attraction block (51) to be embedded is provided on the lower side edge of the adjustment baffle (4); a second mounting groove (17) for the second magnetic attraction block (52) to be embedded is provided on the outer side surface of the main body (1); a sealing ring (6) is provided on the side surface of the adjustment baffle (4); and an annular mounting groove (42) for the sealing ring (6) to be inserted is provided on the side surface of the adjustment baffle (4) close to the main body (1).

2. A cabinet structure according to claim 1, characterized in that: The main body (1) is provided with a first protective cover (12) opening downward at the outer opening edge of the heat dissipation hole (11).

3. A cabinet structure according to claim 2, characterized in that: The main body (1) is provided with a second protective cover (13) opening upward at the inner opening edge of the heat dissipation hole (11).

4. A cabinet structure according to claim 3, characterized in that: The opening edge of the second protective cover (13) is provided with a blocking member (14), the blocking member (14) comprising a blocking frame (141) and a blocking net (142) arranged in the middle of the blocking frame (141), and the blocking frame (141) is fixedly arranged at the opening edge of the second protective cover (13).

5. A cabinet structure according to claim 4, characterized in that: A limiting plate (131) is provided opposite to the opening edge of the second protective cover (13), and a limiting groove (1311) is provided on the limiting plate (131) for the blocking frame (141) to be inserted and slide. The blocking frame (141) is provided with an elastic clamping piece (15), and the inner wall of the limiting groove (1311) is provided with a positioning groove (1312) for the elastic clamping piece (15) to be inserted.

6. A fully insulated ring main unit, characterized in that: A cabinet structure comprising any one of claims 1 to 5.

Images