阅读说明：本技术 一种手车式开关柜的挡板 (Baffle of handcart-type cubical switchboard ) 是由 舒越 彭晶 王科 谭向宇 邓云坤 马仪 赵现平 李�昊 刘红文 徐肖伟 于 2019-11-20 设计创作，主要内容包括：本申请公开一种手车式开关柜的挡板,包括：绝缘板、位于所述绝缘板内部的金属网和若干接地引线、贯穿所述绝缘板的若干安装孔；所述金属网通过所述接地引线与所述安装孔电连接。以解决现有金属挡板在卡涩、掉落的情况下会造成断路器三相短路故障,严重损坏设备,甚至造成人员触电；绝缘挡板屏蔽高压电场屏蔽能力较弱等问题。(The application discloses baffle of handcart-type cubical switchboard includes: the metal mesh and the plurality of grounding leads are positioned in the insulating plate, and the plurality of mounting holes penetrate through the insulating plate; the metal net is electrically connected with the mounting hole through the grounding lead. The three-phase short circuit fault of the circuit breaker can be caused under the conditions that the existing metal baffle is jammed and falls off, equipment is seriously damaged, and even personnel get an electric shock; the insulating baffle plate has weak shielding capability for shielding a high-voltage electric field.)

1. A baffle of handcart-type cubical switchboard which characterized in that includes: the metal mesh and the plurality of grounding leads are positioned in the insulating plate, and the plurality of mounting holes penetrate through the insulating plate;

the metal net is electrically connected with the mounting hole through the grounding lead.

2. The baffle of the handcart type switch cabinet according to claim 1, wherein the mounting hole is electrically connected with a grounding end of the handcart type switch cabinet.

3. The baffle of the handcart type switch cabinet according to claim 2, wherein a metal layer is arranged on the inner wall of the mounting hole, the metal layer is electrically connected with the grounding lead, and the metal layer is electrically connected with the grounding end of the handcart type switch cabinet.

4. The baffle of the handcart type switch cabinet according to claim 1, wherein the number of the metal nets in the insulating plate is more than or equal to two.

5. The baffle of the handcart type switch cabinet according to claim 4, wherein the metal nets are arranged in an array inside the insulating plate.

6. The baffle plate of the handcart type switch cabinet as claimed in claim 5, wherein adjacent metal nets are electrically connected through conductive leads.

7. The baffle of handcart-type cubical switchboard according to claim 1, characterized in that, handcart-type cubical switchboard's baffle outer wall sets up instruction word sign region and warning word sign region.

Technical Field

The application relates to a baffle, and particularly relates to a baffle of a handcart type switch cabinet.

Background

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The handcart type switch cabinet and the fixed type switch cabinet can be divided according to the installation mode of the circuit breaker. The handcart type switch cabinet has good interchangeability, only the handcart needs to be replaced during maintenance, the power failure time of the maintenance can be shortened, and the power supply reliability is improved, so that the handcart type switch cabinet is widely used in a power system.

In order to ensure the reliability of power supply, the bus is not powered off when most switch cabinets are overhauled, so that the bus side static contact and the line side static contact are provided with high voltage electricity to form a high-voltage electric field. When the switch cabinet is in an overhauling state, the baffle blocks the bus side static contact and the line side static contact, and an isolating effect is achieved. Therefore, the ability of the baffle to isolate the high voltage electric field is particularly important to the operational safety of the service personnel.

At present, the baffle of handcart-type cubical switchboard that uses in the electric wire netting divide into two kinds: one is a metal baffle, but the metal baffle can cause three-phase short circuit fault of the circuit breaker under the conditions of jamming and falling, seriously damages equipment and even causes electric shock of personnel; the other type is an insulating baffle, but the insulating baffle can not well shield a high-voltage electric field formed by a fixed contact at the side of the bus, and the insulating baffle still has higher voltage, so that electric shock accidents of the maintainers can be caused when the maintainers touch the insulating baffle by mistake.

Therefore, how to provide a safe and reliable baffle for a handcart type switch cabinet for shielding a high-voltage electric field has become a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The application provides a baffle plate of a handcart type switch cabinet, which aims to solve the problems that the existing metal baffle plate can cause three-phase short-circuit fault of a circuit breaker under the conditions of jamming and dropping, seriously damages equipment and even causes electric shock of personnel; the insulating baffle plate has weak shielding capability for shielding a high-voltage electric field.

The application provides baffle of handcart-type cubical switchboard, includes: the metal mesh and the plurality of grounding leads are positioned in the insulating plate, and the plurality of mounting holes penetrate through the insulating plate;

the metal net is electrically connected with the mounting hole through the grounding lead.

Optionally, the mounting hole is electrically connected with a ground terminal of the handcart type switch cabinet.

Optionally, a metal layer is arranged on the inner wall of the mounting hole, the metal layer is electrically connected with the grounding lead, and the metal layer is electrically connected with the grounding end of the handcart type switch cabinet.

Optionally, the number of the metal meshes in the insulating plate is greater than or equal to two.

Optionally, the metal meshes are arranged in an array inside the insulating plate.

Optionally, adjacent metal nets are electrically connected through a conductive lead.

Optionally, the outer wall of the baffle of the handcart switch cabinet is provided with an indicator mark area and a warning mark area.

According to the above technical scheme, this application provides a baffle of handcart-type cubical switchboard, includes: the metal mesh and the plurality of grounding leads are positioned in the insulating plate, and the plurality of mounting holes penetrate through the insulating plate; the metal net is electrically connected with the mounting hole through the grounding lead. By the baffle plate of the handcart type switch cabinet, the problems that the three-phase short-circuit fault of a circuit breaker, equipment is seriously damaged and even personnel get an electric shock can be caused under the conditions that the conventional metal baffle plate is jammed and falls off can be solved; the insulating baffle plate has weak shielding capability for shielding a high-voltage electric field.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a baffle plate of a handcart type switch cabinet provided by the application;

fig. 2 is a cross-sectional view of a baffle plate of the handcart type switch cabinet along A-A;

fig. 3 is a schematic internal structural diagram of a baffle plate of a handcart type switch cabinet provided by the application;

FIG. 4 is an enlarged view of a partial region B;

FIG. 5 is a cross-sectional view of a partial region B along C-C;

fig. 6 is a schematic diagram of an internal structure of a baffle plate of another handcart type switch cabinet provided by the application;

fig. 7 is a schematic view of an internal structure of a baffle plate of a handcart type switch cabinet provided by the application;

fig. 8 is a schematic view of an internal structure of a baffle plate of a handcart type switch cabinet provided by the application;

fig. 9 is a schematic diagram of another indication symbol of a baffle plate of a handcart type switch cabinet provided by the application;

fig. 10 is a diagram of the position relationship between the baffle of the handcart type switch cabinet and the handcart type switch cabinet when the handcart type switch cabinet is in a non-overhaul state;

fig. 11 is a diagram of the position relationship between the baffle of the handcart type switch cabinet and the handcart type switch cabinet when the handcart type switch cabinet is in an overhaul state.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The handcart type switch cabinet and the fixed type switch cabinet can be divided according to the installation mode of the circuit breaker. The handcart type switch cabinet has good interchangeability, only the handcart needs to be replaced during maintenance, the power failure time of the maintenance can be shortened, and the power supply reliability is improved, so that the handcart type switch cabinet is widely used in a power system.

In order to ensure the reliability of power supply, the bus is not powered off when most switch cabinets are overhauled, so that the bus side static contact and the line side static contact are provided with high voltage electricity to form a high-voltage electric field. When the switch cabinet is in an overhauling state, the baffle blocks the bus side static contact and the line side static contact, and an isolating effect is achieved. Therefore, the ability of the baffle to isolate the high voltage electric field is particularly important to the operational safety of the service personnel.

At present, the baffle of handcart-type cubical switchboard that uses in the electric wire netting divide into two kinds: one is a metal baffle, but the metal baffle can cause three-phase short circuit fault of the circuit breaker under the conditions of jamming and falling, seriously damages equipment and even causes personal injury; the other type is an insulating baffle, but the insulating baffle can not well shield a high-voltage electric field formed by a fixed contact at the side of the bus, and the insulating baffle still has higher voltage, so that electric shock accidents of the maintainers can be caused when the maintainers touch the insulating baffle by mistake.

In view of this, fig. 1 is a schematic structural diagram of a baffle of a handcart type switch cabinet provided in the present application, fig. 2 is a cross-sectional view of the baffle of the handcart type switch cabinet along a-a, fig. 3 is a schematic internal structural diagram of the baffle of the handcart type switch cabinet provided in the present application, and as shown in fig. 1, fig. 2 and fig. 3, the present application provides a baffle 10 of a handcart type switch cabinet, including: the insulation board 1, a metal net 2 and a plurality of grounding leads 3 which are positioned in the insulation board 1, and a plurality of mounting holes 4 which penetrate through the insulation board 1; the metal mesh 2 is electrically connected to the mounting hole 4 through the ground lead 3.

Alternatively, the mounting hole 4 is electrically connected to a ground terminal of the handcart type switch cabinet (the ground terminal of the handcart type switch cabinet is not shown in the drawings of the present application).

The baffle 10 of handcart-type cubical switchboard that this embodiment provided, insulation board 1 adopts insulating material to make, drops or under the unsmooth condition at insulation board 1, can effectively avoid circuit breaker three-phase short-circuit fault or personnel to electrocute scheduling problem. The metal net 2 is arranged in the insulating plate 1, and it is easy to understand that the metal net 2 is made of conductive materials such as metal or alloy, the metal net 2 is electrically connected with the mounting hole 4 through the grounding lead 3, and the mounting hole 4 is electrically connected with the grounding end of the handcart type switch cabinet, so that the metal net 2 is in a grounding state, and the potential of the metal net 2 is always kept to be zero. Therefore, when the handcart switch cabinet is overhauled, the baffle 10 of the handcart switch cabinet blocks the bus side static contact and the line side static contact, and the metal mesh 2 shields the high-voltage electric field of the handcart switch cabinet. Set up metal mesh 2 in insulation board 1 inside, metal mesh 2 is connected through ground lead 3 and mounting hole 4 and handcart-type cubical switchboard's earthing terminal electricity, can be when shielding high-tension electric field, avoids the baffle when dropping or jamming, and the outer wall of baffle and the short circuit that other live equipment contact lead to or maintainer's electric shock problem.

Optionally, fig. 4 is an enlarged view of a partial region B, fig. 5 is a sectional view of the partial region B along C-C, as shown in fig. 4 and fig. 5, the mounting hole 4 is a through hole penetrating through the insulating plate 1, a metal layer 41 is disposed on an inner wall of the mounting hole 4, the metal layer 41 is electrically connected to the ground lead 3, and the metal layer 41 is electrically connected to a ground terminal of the handcart-type switch cabinet.

As shown in fig. 3 and 4, the mounting hole 4 is a through hole penetrating through the insulating plate 1, a metal layer 41 is disposed on an inner wall of the mounting hole 4, the metal layer 41 is used to be connectable to the ground lead 3, and the ground lead 3 is made of a conductive material such as metal or alloy, so that the metal layer 41 and the ground lead 3 can be electrically connected; similarly, the metal layer 41 is connected to the ground terminal of the handcart type switch cabinet, and can also be electrically connected. The ground of the handcart-type switchgear is not shown in fig. 3 and 4. The mounting hole 4 is indicated by a dashed box in fig. 5.

It should be noted that the metal layer 41 shown in fig. 4 may be a conductive layer of metal or alloy formed on the inner wall of the mounting hole 4 in the form of a plated film or a coating, or may be a tubular body formed by sleeving a conductive material such as metal or alloy in the mounting hole 4, and the form of the metal layer 41 is not particularly limited in the present application.

Optionally, the number of the metal meshes in the insulating plate is greater than or equal to two.

Fig. 6 is a schematic view of an internal structure of another baffle of a handcart type switch cabinet, as shown in fig. 6, the number of the metal nets 2 in the baffle 10 of the handcart type switch cabinet is two, the areas of the two metal nets 2 may be the same or different, the handcart type switch cabinet is not specifically limited in the application, and the shapes and the arrangement modes of the metal nets 2 shown in fig. 6 are only schematic.

Optionally, the metal meshes are arranged in an array inside the insulating plate.

Fig. 7 is a schematic view of an internal structure of a baffle plate of a handcart-type switch cabinet provided by the present application, as shown in fig. 7, the number of metal nets 2 inside a baffle plate 10 of a handcart-type switch cabinet is greater than two, all metal nets 2 are arranged in an array, the areas of all metal nets 2 may be the same or different, the number, shape and area of metal nets 2 shown in fig. 7 are only schematic, and the present application is not limited specifically.

Optionally, adjacent metal meshes are electrically connected through a conductive lead.

Fig. 8 is a schematic view of an internal structure of a baffle plate of a handcart type switch cabinet provided by the present application, and as shown in fig. 8, adjacent metal nets 2 are electrically connected through a conductive lead 21. It should be noted that the connection manner of the adjacent metal meshes 2 shown in fig. 7 and 8 electrically connected by the conductive lead 21 is only illustrative, and the present application is not particularly limited.

The number, shape, size, arrangement and connection of the metal nets 2 shown in fig. 3, 6, 7 and 8 are only schematic, and the present application is not limited thereto.

The quantity of the metal nets 2 is more than or equal to two, the metal nets are arranged in an array mode, the adjacent metal nets 2 are electrically connected through the conductive leads 21, when the metal nets 2 are arranged, the metal nets 2 form a net shape, and the shielding effect of the metal nets 2 on a high-voltage electric field can be improved.

Optionally, the outer wall of the baffle of the handcart type switch cabinet is provided with an indication language identification area and a warning language identification area.

Fig. 9 is another indication symbol schematic diagram of a baffle of a handcart type switch cabinet provided by the present application, as shown in fig. 1 and 9, an indication symbol region 5 and a warning symbol region 6 are provided on an outer wall of a baffle 10 of a handcart type switch cabinet, and the indication symbol region 5 is used for pasting or directly writing an indication symbol, for example, the indication symbol "bus side" shown in fig. 1, or "line side" shown in fig. 9. The warning word identification area 6 is used for pasting or directly writing warning words, such as the words "high-voltage danger" and warning icons of high-voltage danger shown in fig. 1 and 9.

The intention of this embodiment is that the partial space region is reserved at the outer wall of handcart-type cubical switchboard and is used for setting up instruction and warning. The number, size, shape and arrangement of the indicator symbol areas and the warning symbol areas shown in fig. 1 and 9 are schematic, and the present application is not limited specifically. The words and icons shown in the indicator mark area and the warning mark area in fig. 1 and 9 are also schematic, and the application is not limited in particular.

Fig. 10 is a position relationship diagram of a baffle of the handcart type switch cabinet and the handcart type switch cabinet when the handcart type switch cabinet is in a non-overhaul state, as shown in fig. 10, a contact box 02, a bus fixed contact 03 located in the contact box 02, and a line fixed contact 04 located in the contact box 02 are arranged on the handcart type switch cabinet 01, when the handcart type switch cabinet is in the non-overhaul state, the baffle 10 of the handcart type switch cabinet marked with a bus side is located on one side close to the bus fixed contact 03, and the baffle 10 of the handcart type switch cabinet marked with a line side is located on one side close to the line fixed contact 04. The baffle 10 of the handcart type switch cabinet is electrically connected with the handcart type switch cabinet 01 through a connecting rod (not shown in figure 10) and a mounting hole 4.

Fig. 11 is a position relationship diagram of the baffle and the handcart type switch cabinet, and as shown in fig. 11, when the handcart type switch cabinet is in an overhaul state, the connecting rod (not shown in fig. 11) drives the baffle 10 of the handcart type switch cabinet to move, the baffle 10 of the handcart type switch cabinet moves to the opposite side of the bus fixed contact 03 (which has been blocked by the baffle 10 of the handcart type switch cabinet in fig. 11) and the line fixed contact 04 (which has been blocked by the baffle 10 of the handcart type switch cabinet in fig. 11), and the high-voltage electric field formed by the bus fixed contact 03 and the line fixed contact 04 with high voltage is shielded.

The application provides baffle of handcart-type cubical switchboard, includes: the metal net and the plurality of grounding leads are positioned in the insulating plate, and the plurality of mounting holes penetrate through the insulating plate; the metal net is electrically connected with the mounting hole through a grounding lead.

This application is through setting up the metal mesh inside the insulation board, the metal mesh passes through ground lead and mounting hole and is connected with handcart-type cubical switchboard's earthing terminal electricity, be zero all the time with the electric potential that keeps the metal mesh, the metal mesh that the electric potential is zero all the time can play extremely strong shielding effect to the high-tension electric field that the high-tension electricity that brings of generating line static contact and circuit static contact formed, the metal mesh is wrapped up by the insulation board, produce the short circuit with other live equipment when can avoiding the baffle to drop or block puckery and damage equipment, or can avoid taking place the problem that the personnel electrocute. Therefore, the baffle of handcart-type cubical switchboard that this application provided can play extremely strong shielding effect to the high-voltage electric field that the high tension electricity that bus static contact and circuit static contact were taken formed, can solve the baffle again and drop or produce the short circuit damage equipment with other live equipment when cutting out or the bite, perhaps can avoid taking place the problem that personnel electrocute.

Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.

The same and similar parts in the various embodiments in this specification may be referred to each other. In particular, for the embodiments, since they are substantially similar to the method embodiments, the description is simple, and the relevant points can be referred to the description in the method embodiments.