Solid cabinet

Abstract

The utility model relates to the technical field of power distribution equipment, in particular to a solid cabinet. According to the technical scheme, the switch cabinet comprises a cabinet body and further comprises an arc extinguishing mechanism which is installed in the cabinet body and prevents electric arc from puncturing air to enable the cabinet body to be electrified; the warning mechanism is arranged at the top of the cabinet body to remind that the cabinet body leaks electricity; the warning mechanism comprises an insulating base connected to the upper surface of the cabinet body, and the top end of the insulating base is fixedly connected with a bottom box. According to the utility model, the arc extinguishing mechanism, the circuit breaker spring operating mechanism, the grounding switch operating mechanism, the insulating pull rod, the vacuum arc extinguishing chamber and other structures are matched, and the vacuum arc extinguishing chamber is arranged, so that the circuit breaker-disconnecting switch can generate an arc in the opening and closing process for arc extinguishing; the solid cabinet prevents electric arc from breaking through air to enable the metal structure module on the cabinet body to be electrified, guarantees the safety of the solid cabinet, can reduce the distance between the circuit breaker-isolation switch and the cabinet body, reduces the size of the solid cabinet, and improves the convenience of the solid cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution equipment, in particular to a solid cabinet. Background Art

[0002] At present, the country is building a smart grid, which includes power generation, substation, distribution, dispatching and power automation. As an important link in power distribution, dispatching and power consumption, the ring main unit plays an extremely important role in distribution automation. At the same time, there are many metal modules in the cabinet, and sometimes the conductive connection between the metal structure modules will be disconnected, such as due to loose screws or broken connecting wires, which will cause some metal structure modules to no longer conduct electricity.

[0003] For example, in a Chinese utility model with announcement number CN212726081U and the name of a solid cabinet, the circuit breaker-isolating switch body is enclosed in epoxy resin, a protruding mounting column is provided on the front of the circuit breaker-isolating switch body, the mounting column includes an internal thread mounting hole, the internal thread mounting hole is used to fix the circuit breaker-isolating switch body to the partition, the outer periphery of the mounting column is covered with epoxy resin, a terminal block is provided on the bottom plate of the monitoring room, the terminal block leads cables to the microcomputer integrated protector, three-phase ammeter and remote local control conversion switch on the panel of the monitoring room, a short circuit and ground fault indicator is provided above the panel of the mechanism room, a long slot is provided at the rear of the terminal block, and the terminal also leads cables through the long slot to the short circuit and ground fault indicator. Although the above-mentioned prior art adopts integrated epoxy resin sealing to improve the electrical insulation strength, the circuit breaker-isolating switch generates an arc during the opening and closing process, and the arc easily breaks through the air, making some metal modules on the solid cabinet charged, affecting the safety of personnel use.

[0004] Therefore, the utility model designs a solid cabinet. Utility Model Content

[0005] The utility model aims to propose a solid cabinet to solve the problem that arcs are generated during the opening and closing process of circuit breakers and isolating switches, and the arcs easily break through the air, making some metal modules on the solid cabinet charged and affecting the safety of personnel.

[0006] The technical solution of the utility model is as follows: a solid cabinet comprises a cabinet body, and also comprises: an arc extinguishing mechanism installed in the cabinet body to prevent the electric arc from breaking through the air and making the cabinet body electrified; a warning mechanism arranged on the top of the cabinet body to remind the cabinet body of leakage; the warning mechanism comprises an insulating base connected to the upper surface of the cabinet body, the top of the insulating base is fixedly connected to a bottom box, the upper surface of the bottom box is fixedly connected to an alarm, a plurality of rotating seats distributed in a circular array are arranged inside the bottom box, the upper surface of the rotating seat is fixedly connected to a wire storage shaft, a connecting wire is wound around the wire storage shaft, one end of the connecting wire is fixedly connected to the wire storage shaft, and a A plurality of telescopic through holes for the other end of the connecting wire to pass through, the other end of the connecting wire is connected to an insulating patch attached to the cabinet for conduction; a rebound mechanism arranged in a circular array inside the cabinet, so that the unused warning mechanism automatically returns to its initial position; the rebound mechanism includes a rotating rod fixedly connected to the lower surface of the rotating seat, the end of the rotating rod away from the rotating seat is rotatably connected to the inner bottom wall of the bottom box, and the interior of the bottom box is provided with a plurality of springs distributed in a circular array directly below the rotating seat, the inner end of the spring is fixedly connected to the rotating rod, the outer end of the spring is fixedly connected to the support block, and the bottom end of the support block is fixedly connected to the inner bottom wall of the bottom box.

[0007] Optionally, the arc extinguishing mechanism includes a circuit breaker spring operating mechanism and a grounding switch operating mechanism in a cabinet, an insulating pull rod is connected to one side of the circuit breaker spring operating mechanism, one end of the circuit breaker spring operating mechanism is connected to a grounding assembly, a vacuum arc extinguishing chamber is provided on the insulating pull rod, an epoxy resin shell is provided on the outer side of the grounding assembly, the insulating pull rod and the vacuum arc extinguishing chamber, the grounding assembly includes a contact rod arranged on one side of the grounding switch operating mechanism and a moving contact connected to one end of the contact rod, and the lower end of the moving contact is cooperatively connected to a static contact.

[0008] Optionally, a mounting column is provided inside the cabinet, the lower end of the mounting column is connected to one end of the insulating pull rod, and the lower end of the mounting column is also connected to a terminal connected to the upper end of the moving contact.

[0009] Optionally, a circuit breaker operating hole cooperating with the circuit breaker spring operating mechanism and a grounding switch opening and closing operating hole cooperating with the grounding switch operating mechanism are provided on one side of the cabinet.

[0010] Optionally, the warning mechanism also includes a metal conductive column arranged in the base box for conduction, the outer wall of the metal conductive column is fixedly connected to a plurality of conductive paddles arranged in a circular array, the top end of the wire storage shaft is fixedly connected to a metal plate movably connected to the conductive paddles, and the top end of the metal conductive column is fixedly connected to a conductive top rod that conducts electricity to the alarm.

[0011] Optionally, the insulating patch is provided with a metal conductive block fixed to the other end of the connecting wire, and a protective patch is affixed to a side of the insulating patch away from the connecting wire.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model utilizes the coordination of arc extinguishing mechanism, circuit breaker spring operating mechanism, earthing switch operating mechanism, insulating pull rod and vacuum arc extinguishing chamber, and by setting the vacuum arc extinguishing chamber, the circuit breaker-isolating switch can generate an arc for arc extinguishing during the opening and closing process, thereby preventing the arc from breaking through the air and making the metal structure module on the cabinet body electrified, thereby ensuring the safety of the solid cabinet, and also reducing the distance between the circuit breaker-isolating switch and the cabinet body, thereby reducing the volume of the solid cabinet and improving the convenience of the solid cabinet.

[0014] Further, through the design of warning mechanism, rebound mechanism, alarm and rotating rod, when the metal structure module on the solid cabinet leaks electricity, the alarm can sound in time to remind people of the electrical safety hazard and prompt them to take corresponding measures to avoid accidents. The solid cabinet can improve the safety of the solid cabinet through leakage warning and reduce the risk of personal injury and equipment damage caused by leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a solid cabinet of the utility model is given;

[0016] Figure 2 for Figure 1 A partial structural diagram of

[0017] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the alarm mechanism;

[0019] Figure 5 for Figure 4 A schematic cross-sectional structure diagram of ;

[0020] Figure 6 for Figure 5 Schematic diagram of the rebound mechanism Schematic diagram of the structure;

[0021] Figure 7 for Figure 6 Schematic diagram of the split structure;

[0022] Figure 8 for Figure 7 Schematic diagram of the split structure of the insulating patch and the protective patch.

[0023] Figure numerals: 1. cabinet; 2. mounting column; 3. epoxy resin shell; 4. vacuum interrupter; 5. insulating pull rod; 6. terminal; 7. moving contact; 8. static contact; 9. contact rod; 10. earthing switch operating mechanism; 11. circuit breaker spring operating mechanism; 12. circuit breaker operating hole; 13. earthing switch opening and closing operating hole; 14. bottom box; 141. metal conductive column; 142. conductive paddle; 143. conductive top rod; 144. telescopic through hole; 145. insulating patch; 146. protective patch; 147. metal conductive block; 15. spring; 151. rotating rod; 152. support block; 153. rotating seat; 154. connecting wire; 155. metal plate; 16. insulating base; 17. alarm. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example

[0031] like Figure 1-8 As shown, a solid cabinet proposed by the utility model includes a cabinet body 1, a mounting column 2 is arranged inside the cabinet body 1, the lower end of the mounting column 2 is connected to one end of the insulating pull rod 5, and the lower end of the mounting column 2 is also connected to a terminal 6 connected to the upper end of the moving contact 7. A circuit breaker operating hole 12 cooperating with the circuit breaker spring operating mechanism 11 and a grounding switch separation and closing operating hole 13 cooperating with the grounding switch operating mechanism 10 are opened on one side of the cabinet body 1. It also includes: an arc extinguishing mechanism, which is installed in the cabinet body 1 to prevent the arc from breaking through the air and making the cabinet body 1 electrified; a warning mechanism arranged on the top of the cabinet body 1 to remind the cabinet body 1 that leakage occurs; and a rebound mechanism arranged in a circular array in the cabinet body 1, so that the unused warning mechanism automatically returns to its original position.

[0032] Furthermore, the arc extinguishing mechanism includes a circuit breaker spring operating mechanism 11 and a grounding switch operating mechanism 10 in the cabinet 1, an insulating pull rod 5 is connected to one side of the circuit breaker spring operating mechanism 11, one end of the circuit breaker spring operating mechanism 11 is connected to a grounding component, a vacuum arc extinguishing chamber 4 is provided on the insulating pull rod 5, and an epoxy resin shell 3 is provided on the outer side of the grounding component, the insulating pull rod 5 and the vacuum arc extinguishing chamber 4. The grounding component includes a contact rod 9 arranged on one side of the grounding switch operating mechanism 10 and a moving contact 7 connected to one end of the contact rod 9, and the lower end of the moving contact 7 is matched with a static contact 8.

[0033] Among them, the warning mechanism includes an insulating base 16 connected to the upper surface of the cabinet 1, the top of the insulating base 16 is fixedly connected to the bottom box 14, and the upper surface of the bottom box 14 is fixedly connected to the alarm 17. The alarm 17 is a leakage alarm, which is a device used to detect whether there is leakage in the circuit and issue an alarm. The interior of the bottom box 14 is provided with a plurality of rotating seats 153 distributed in a circular array. The material of the rotating seat 153 is insulating, and the diameter of the rotating seat 153 is slightly smaller than that of the metal plate 155. The upper surface of the rotating seat 153 is fixedly connected to the wire storage shaft, and the material of the wire storage shaft is a conductive metal. A connecting wire 154 is wound around the wire storage shaft, and the function of the connecting wire 154 is to guide the leakage point to the wire storage shaft. One end of the connecting wire 154 is fixedly connected to the wire storage shaft, and the bottom box 14 is provided with a plurality of telescopic through holes 144 for the other end of the connecting wire 154 to pass through. The other end of the connecting wire 154 is connected to an insulating patch 145 attached to the cabinet 1 for conducting electricity. The insulating patch 145 is provided with glue to make the insulating patch 145 firmly attached to the metal structure module. The insulating patch 145 is provided with a metal conductive block 147 fixed to the other end of the connecting wire 154, and a protective patch 146 is attached to the side of the insulating patch 145 away from the connecting wire 154. The protective patch 146 is used to protect the insulating patch 145 from being contaminated by dust.

[0034] Secondly, the warning mechanism also includes a metal conductive column 141 for conducting electricity, which is arranged in the bottom box 14. The outer wall of the metal conductive column 141 is fixedly connected to a plurality of conductive paddles 142 arranged in a circumferential array. The conductive paddles 142 are made of metal and can conduct electricity. The top of the wire storage shaft is fixedly connected to a metal plate 155 that is movably connected to the conductive paddles 142. The material of the metal plate 155 can be used for conducting electricity. The top of the metal conductive column 141 is fixedly connected to a conductive top rod 143 that guides electricity to the alarm 17.

[0035] Furthermore, the rebound mechanism includes a rotating rod 151 fixedly connected to the lower surface of the rotating seat 153, and one end of the rotating rod 151 away from the rotating seat 153 is rotatably connected to the inner bottom wall of the bottom box 14. The interior of the bottom box 14 is located directly below the rotating seat 153 and is provided with a plurality of springs 15 distributed in a circular array. The spring 15 is usually a spiral spring, which is twisted or stretched manually or automatically to store energy. When the energy needs to be released, the spring will gradually relax and transfer the stored energy to the mechanical device to drive it to move. The inner end of the spring 15 is fixedly connected to the rotating rod 151, and the outer end of the spring 15 is fixedly connected to the support block 152, and the bottom end of the support block 152 is fixedly connected to the inner bottom wall of the bottom box 14.

[0036] In this embodiment, when the solid state switch cabinet is closed, it is only necessary to insert the operating handle into the circuit breaker operating hole 12 and rotate it clockwise, so that the circuit breaker spring operating mechanism 11 can drive the insulating pull rod 5 to move and complete the opening and closing action; when grounding, it is only necessary to insert the operating handle into the grounding switch opening and closing operating hole 13 and rotate it clockwise, so that the grounding switch operating mechanism 10 can drive the moving contact 7 to rotate, so that the moving contact 7 is connected with the static contact 8, and the grounding action is completed;

[0037] When it is necessary to use the warning mechanism on the cabinet 1, it is only necessary to determine the number of metal structural modules on the cabinet 1, and the material of the metal structural modules must be conductive. Then pull the insulating patch 145 on the bottom box 14, and the insulating patch 145 will drive the metal conductive block 147 to move, and the metal conductive block 147 will drive one end of the connecting wire 154 through the telescopic through-hole 144 to the splicing part of the cabinet 1 and the conductive position. Then just tear off the protective sticker 146 on the insulating patch 145, and then press the metal conductive block 147 on the insulating patch 145 against the position of the metal structural module. Repeat the above operation until all the metal structural modules on the cabinet 1 are affixed with insulating patches 145. Finally, when one of the metal structural modules on the cabinet 1 leaks electricity, electricity passes through the metal conductive block 147, the connecting wire 154, the wire storage shaft, the metal plate 155, the conductive pick 142, the metal conductive column 141 and the conductive top rod 143 in sequence and finally passes through the alarm 17 on the bottom box 14, so that the alarm 17 can sound an alarm to warn that the cabinet 1 has a leakage.

[0038] The preferred embodiments of the utility model of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A solid cabinet, comprising a cabinet body (1), characterized in that: Also includes: An arc extinguishing mechanism is installed in the cabinet (1) to prevent the electric arc from breaking through the air and causing the cabinet (1) to be electrified; A warning mechanism disposed on the top of the cabinet (1) for reminding the cabinet (1) that a leakage has occurred; The warning mechanism comprises an insulating base (16) connected to the upper surface of the cabinet (1), the top of the insulating base (16) is fixedly connected to a bottom box (14), the upper surface of the bottom box (14) is fixedly connected to an alarm (17), a plurality of rotating seats (153) distributed in a circular array are provided inside the bottom box (14), the upper surface of the rotating seat (153) is fixedly connected to a wire storage shaft, a connecting wire (154) is wound around the wire storage shaft, one end of the connecting wire (154) is fixedly connected to the wire storage shaft, a plurality of telescopic through holes (144) are provided on the bottom box (14) for the other end of the connecting wire (154) to pass through, and the other end of the connecting wire (154) is connected to an insulating patch (145) attached to the cabinet (1) for conducting electricity; The rebound mechanisms are arranged in a circular array in the cabinet (1) so that the warning mechanisms not in use automatically return to their initial positions; The rebound mechanism comprises a rotating rod (151) fixedly connected to the lower surface of the rotating seat (153); one end of the rotating rod (151) away from the rotating seat (153) is rotatably connected to the inner bottom wall of the bottom box (14); a plurality of springs (15) distributed in a circular array are arranged inside the bottom box (14) directly below the rotating seat (153); one inner end of the spring (15) is fixedly connected to the rotating rod (151); one outer end of the spring (15) is fixedly connected to the supporting block (152); and the bottom end of the supporting block (152) is fixedly connected to the inner bottom wall of the bottom box (14).

2. A solid cabinet according to claim 1, characterized in that: The arc extinguishing mechanism comprises a circuit breaker spring operating mechanism (11) and a grounding switch operating mechanism (10) in a cabinet (1); one side of the circuit breaker spring operating mechanism (11) is connected to an insulating pull rod (5); one end of the circuit breaker spring operating mechanism (11) is connected to a grounding assembly; a vacuum arc extinguishing chamber (4) is provided on the insulating pull rod (5); an epoxy resin shell (3) is provided on the outer sides of the grounding assembly, the insulating pull rod (5) and the vacuum arc extinguishing chamber (4); the grounding assembly comprises a contact rod (9) arranged on one side of the grounding switch operating mechanism (10) and a moving contact (7) connected to one end of the contact rod (9); the lower end of the moving contact (7) is matched with a stationary contact (8).

3. A solid cabinet according to claim 1, characterized in that: A mounting column (2) is provided inside the cabinet (1), the lower end of the mounting column (2) is connected to one end of an insulating pull rod (5), and the lower end of the mounting column (2) is also connected to a terminal (6) connected to the upper end of a moving contact (7).

4. A solid cabinet according to claim 1, characterized in that: A circuit breaker operating hole (12) cooperating with the circuit breaker spring operating mechanism (11) and a grounding switch opening and closing operating hole (13) cooperating with the grounding switch operating mechanism (10) are provided on one side of the cabinet (1).

5. A solid cabinet according to claim 1, characterized in that: The warning mechanism also includes a metal conductive column (141) for conducting electricity and arranged in the bottom box (14); the outer wall of the metal conductive column (141) is fixedly connected to a plurality of conductive paddles (142) arranged in a circumferential array; the top end of the wire storage shaft is fixedly connected to a metal plate (155) movably connected to the conductive paddles (142); and the top end of the metal conductive column (141) is fixedly connected to a conductive top rod (143) for conducting electricity to the alarm (17).

6. A solid cabinet according to claim 1, characterized in that: The insulating patch (145) is provided with a metal conductive block (147) fixed to the other end of the connecting wire (154), and a protective patch (146) is attached to a side of the insulating patch (145) away from the connecting wire (154).

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