Gas tank and ring main unit

Abstract

The utility model relates to a gas tank and ring main unit, including permanent magnet circuit breaker and three-position disconnecting switch, permanent magnet circuit breaker includes three permanent magnet, vacuum arc extinguish chamber, trunking and binding post, the vacuum arc extinguish chamber is under the three permanent magnet, trunking is installed on one side of three permanent magnet, the binding post is installed on the trunking, the three-position disconnecting switch is installed on the three-position disconnecting switch, and the three-position disconnecting switch is installed on the three-position disconnecting switch. Positive electrodes of the three permanent magnets are integrated into a positive electrode wire, negative electrodes of the three permanent magnets are integrated into a negative electrode wire, the positive electrode wire and the negative electrode wire are connected with one end of a wiring terminal through a wire slot, and the other end of the wiring terminal is used for being connected with an aviation socket; and the three-position isolating switch is electrically connected with the static end of the vacuum arc-extinguishing chamber. According to the technical scheme, the wiring duct and the wiring terminal are arranged, the wiring terminal is installed on the wiring duct, and the wiring duct is installed on the permanent magnet circuit breaker. Positive electrode wires and negative electrode wires of the three permanent magnets can be connected with wires pre-welded on an air box aviation socket through wiring terminals, so that connection is more convenient, and installation and subsequent disassembly are also facilitated.

Description

Technical Field

[0001] The utility model relates to the field of ring network cabinet gas boxes, in particular to a gas box and a ring network cabinet. Background Art

[0002] In a permanent magnet ring main unit, a permanent magnet circuit breaker includes three permanent magnets, each of which has a positive wire and a negative wire, for a total of six wires. When installing three permanent magnets, the three positive wires need to be merged into one, the three negative wires need to be merged into one, and then welded to the aviation socket of the air box respectively. Welding connection is not convenient for installation or disassembly. Utility Model Content

[0003] In view of the above problems, the present application provides an air box and a ring main unit, which are used to solve the technical problem that when installing the existing three permanent magnets, three positive wires need to be merged into one, three negative wires need to be merged into one, and then they need to be welded to the air box aviation socket respectively, and the welding connection is inconvenient to install or disassemble.

[0004] To achieve the above-mentioned objectives, in the first aspect, the inventor provides a gas box, including a permanent magnet circuit breaker and a three-position disconnector, the permanent magnet circuit breaker including three permanent magnets, a vacuum arc chamber, a wire trough and a terminal block, the vacuum arc chamber is located below the three permanent magnets, the wire trough is installed on one side of the three permanent magnets, the terminal block is installed on the wire trough, the positive poles of the three permanent magnets are integrated into a positive wire, the negative poles of the three permanent magnets are integrated into a negative wire, the positive wire and the negative wire are connected to one end of the terminal block through the wire trough, and the other end of the terminal block is used to connect to an aviation socket; the three-position disconnector is electrically connected to the static end of the vacuum arc chamber.

[0005] Different from the prior art, the technical solution of the present application is provided with a wire slot and a wiring terminal, the wiring terminal is installed on the wire slot, and the wire slot is installed on the permanent magnetic circuit breaker. The positive and negative wires of the three permanent magnets can be connected to the wires pre-welded on the air box aviation socket through the wiring terminal, which is more convenient for connection and installation and subsequent disassembly.

[0006] As an implementation mode of the utility model, the wire slot includes a mounting hole, and the mounting hole is mounted on one side of the three permanent magnets through a mounting fastener.

[0007] In this way, installation and subsequent disassembly are facilitated by installing fasteners. Optionally, the installation fasteners may be bolts, screws, or studs, etc. In some embodiments, a plurality of installation holes may be arranged at intervals on the wire trough for a more secure installation. Preferably, the plurality of installation holes are spaced at the same distance.

[0008] As an implementation mode of the utility model, the lower end of the wire trough is also provided with two or more avoidance holes, and the avoidance holes are used to avoid the circuit breaker fasteners.

[0009] Thus, since the upper end of the permanent magnetic circuit breaker itself has a circuit breaker fastener, in order to cooperate with both the permanent magnet and the circuit breaker fastener, two or more avoidance holes for avoiding the circuit breaker fastener are provided at the lower end of the wire slot. In some embodiments, six avoidance holes are provided, and three groups are provided in pairs, and there is a mounting hole between the avoidance holes in one group. Preferably, the intervals between the groups are the same.

[0010] As an implementation mode of the utility model, the wire slot is in an inverted L-shape, and the upper side of the inverted L-shape extends toward the direction close to the permanent magnet.

[0011] In this way, the upper side of the inverted L-shape extending toward the permanent magnet can shield the positive and negative wires at the upper part, thereby preventing the positive and negative wires from being affected by other factors. In some embodiments, the wire slot can also be inverted U-shape.

[0012] As an implementation mode of the utility model, the air box further comprises six side expansion sleeves, and the air box is provided with a side expansion sleeve on both sides of each permanent magnet respectively.

[0013] As an implementation mode of the utility model, the gas box also includes a wiring copper bar, which is connected to the lower end of the three-position isolating switch and is provided with three grounding contacts.

[0014] In this way, the use of grounding contacts can effectively protect personal safety and avoid personal injury caused by electrical equipment failure.

[0015] As an implementation mode of the present utility model, the connection terminal is provided with four interfaces.

[0016] In this way, the wiring terminal is provided with four interfaces, and two interfaces can be used as spare interfaces. In some embodiments, the wiring terminal can also be provided with six or eight interfaces.

[0017] To achieve the above-mentioned purpose, in a second aspect, the inventor provides a ring main unit, comprising a base, an instrument box, a mechanism room and a gas box as any one of the items provided by the inventor above, wherein a gas box is provided on one side of the base, a mechanism room is provided on the other side of the base, and an instrument box is provided on the upper surface of the mechanism room near the gas box.

[0018] In the technical solution of the present application, the three permanent magnets in the air box facilitate the access to the air box aviation socket with pre-welded wires with the cooperation of the wire slots and the wiring terminals.

[0019] As an embodiment of the utility model, the mechanism chamber includes an operating mechanism and an isolating mechanism. The operating mechanism and the isolating mechanism are arranged on one side of the mechanism chamber close to the gas box, and the isolating mechanism is arranged below the operating mechanism. The operating mechanism is rotatably connected to the permanent magnet circuit breaker and is used to control the opening of the permanent magnet circuit breaker. The isolating mechanism is rotatably connected to the three-position isolating switch and is used to control the three-position isolating switch to switch between the three positions of closing, opening and grounding.

[0020] In this way, the permanent magnetic circuit breaker can be controlled to open through the operating mechanism, and the three-position disconnector can be controlled to switch between the three positions of closing, opening and grounding through the isolation mechanism.

[0021] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0023] In the drawings of the specification:

[0024] Figure 1 This is a schematic diagram of the structure of a ring main unit according to an embodiment of the present application;

[0025] Figure 2 This is a schematic structural diagram of an open gas box of a ring main unit according to an embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the internal structure of the air box according to an embodiment of the present application;

[0027] Figure 4 for Figure 3 Right view of;

[0028] Figure 5 for Figure 3 Cancel the main view of the wire duct;

[0029] Figure 6 for Figure 3 The main view;

[0030] Figure 7 This is a structural schematic diagram of a wiring terminal installed on a wire slot according to an embodiment of the present application;

[0031] Figure 8 for Figure 7main view.

[0032] The reference numerals in the above drawings are described as follows:

[0033] 100-ring main unit; 1-gas box; 11-permanent magnet circuit breaker; 111-permanent magnet; 1111-positive line; 1112-negative line; 112-vacuum interrupter; 113-wire trough; 1131-mounting hole; 1132-avoidance hole; 114-terminal; 1141-interface; 115-circuit breaker fastener; 12-three-position disconnector; 13-side expansion bushing; 14-connection copper bar; 141-grounding contact; 2-base; 3-instrument box; 4-mechanism room; 41-operating mechanism; 42-isolating mechanism. DETAILED DESCRIPTION

[0034] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0036] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0037] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0038] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0039] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0040] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0041] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0042] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] According to some embodiments of the present application, please refer to Figure 1 to Figure 2 The present embodiment relates to a ring main unit 100, comprising a base 2, an instrument box 3, a mechanism chamber 4 and an air box 1. The air box 1 is arranged on one side of the base 2, the mechanism chamber 4 is arranged on the other side of the base 2, and the instrument box 3 is arranged on the upper surface of the mechanism chamber 4 near the air box 1.

[0044] The ring main unit 100 is a group of electrical equipment (high voltage switchgear) installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit.

[0045] The base 2, the instrument box 3, and the mechanism chamber 4 may be existing structures. The gas box 1 is filled with an environmentally friendly gas as an insulating medium, and the environmentally friendly gas may be dry air or nitrogen.

[0046] In the technical solution of the present application, the three permanent magnets 111 in the air box 1 cooperate with the wire slots 113 and the wiring terminals 114 to facilitate the connection of the air box 1 aviation socket with pre-welded wires.

[0047] According to some embodiments of the present application, optionally, Figure 1 and Figure 2 As shown, the mechanism chamber 4 includes an operating mechanism 41 and an isolating mechanism 42. The operating mechanism 41 and the isolating mechanism 42 are arranged on one side of the mechanism chamber 4 close to the gas box 1, and the isolating mechanism 42 is arranged below the operating mechanism 41; the operating mechanism 41 is rotatably connected to the permanent magnetic circuit breaker 11, and is used to control the opening of the permanent magnetic circuit breaker 11; the isolating mechanism 42 is rotatably connected to the three-position isolating switch 12, and is used to control the switching of the three-position isolating switch 12 between the three positions of closing, opening and grounding.

[0048] When the permanent magnetic circuit breaker 11 needs to be opened manually, the operator can control the operating mechanism 41 to make the moving iron core assembly in the permanent magnetic circuit breaker 11 away from the static iron core assembly. In this way, the permanent magnetic circuit breaker 11 can be controlled to open by the operating mechanism 41, and the three-position disconnector 12 can be controlled to switch between the three positions of closing, opening and grounding by the isolation mechanism 42.

[0049] According to some embodiments of the present application, please refer to Figures 3 to 8 The present embodiment also relates to a gas box 1, comprising a permanent magnet circuit breaker 11 and a three-position disconnector 12, the permanent magnet circuit breaker 11 comprising three permanent magnets 111, a vacuum arc chamber 112, a wire slot 113 and a terminal 114, the vacuum arc chamber 112 is located below the three permanent magnets 111, the wire slot 113 is installed on one side of the three permanent magnets 111, the terminal 114 is installed on the wire slot 113, the positive poles of the three permanent magnets 111 are integrated into a positive pole wire 1111, the negative poles of the three permanent magnets 111 are integrated into a negative pole wire 1112, the positive pole wire 1111 and the negative pole wire 1112 are connected to one end of the terminal 114 through the wire slot 113, and the other end of the terminal 114 is used to be connected to an aviation socket; the three-position disconnector 12 is electrically connected to the static end of the vacuum arc chamber 112.

[0050] A permanent magnetic circuit breaker 11 and a three-position disconnector 12 are arranged in sequence from top to bottom in the gas box 1, wherein the static end of the vacuum arc extinguishing chamber 112 in the permanent magnetic circuit breaker 11 is electrically connected to the three-position disconnector 12 through a copper busbar, and an inlet and outlet bushing electrically connected to the three-position disconnector 12 through a copper rod is provided at the bottom of the gas box 1.

[0051] Optionally, the connection terminal 114 is installed at the upper left of the wire slot 113. The position where the connection terminal 114 is installed on the wire slot 113 can also be determined based on actual conditions.

[0052] Different from the prior art, the technical solution of the present application is provided with a wire slot 113 and a terminal 114, the terminal 114 is installed on the wire slot 113, and the wire slot 113 is installed on the permanent magnetic circuit breaker 11. The positive wire 1111 and the negative wire 1112 of the three permanent magnets 111 can be connected to the wires pre-welded on the aviation socket of the air box 1 through the terminal 114, which is more convenient for connection, installation and subsequent disassembly.

[0053] According to some embodiments of the present application, optionally, Figure 7 and Figure 8 As shown, the wire slot 113 includes a mounting hole 1131 , and the mounting hole 1131 is mounted on one side of the three permanent magnets 111 by mounting fasteners.

[0054] In this way, installation and subsequent disassembly are facilitated by installing fasteners. Optionally, the installation fasteners can be bolts, screws or studs, etc. In some embodiments, multiple installation holes 1131 can be arranged at intervals on the wire trough 113, and the installation is more secure. Preferably, the multiple installation holes 1131 are spaced at the same distance.

[0055] According to some embodiments of the present application, optionally, Figure 7 and Figure 8 As shown, the lower end of the wire slot 113 also has more than two avoidance holes 1132 , and the avoidance holes 1132 are used to avoid the circuit breaker fasteners 115 .

[0056] Thus, since the upper end of the permanent magnetic circuit breaker 11 itself has a circuit breaker fastener 115, in order to cooperate with both the permanent magnet 111 and the circuit breaker fastener 115, two or more avoidance holes 1132 for avoiding the circuit breaker fastener 115 are provided at the lower end of the wire slot 113. In some embodiments, six avoidance holes 1132 are provided, and three groups are provided in pairs, and a group of avoidance holes 1132 has a mounting hole 1131 between them. Preferably, the intervals between the groups are the same.

[0057] According to some embodiments of the present application, optionally, Figure 3 As shown, the wire slot 113 is in an inverted L-shape, and the upper side of the inverted L-shape extends toward the permanent magnet 111 .

[0058] Thus, the upper side of the inverted L-shape extending toward the permanent magnet 111 can shield the positive line 1111 and the negative line 1112 from the upper part, thereby preventing the positive line 1111 and the negative line 1112 from being affected by other factors. In some embodiments, the wire slot 113 can also be inverted U-shape.

[0059] According to some embodiments of the present application, optionally, Figure 2 As shown, the air box 1 further includes six side expansion sleeves 13 , and the air box 1 is provided with a side expansion sleeve 13 on both sides of each permanent magnet 111 .

[0060] According to some embodiments of the present application, optionally, Figure 4 As shown, the gas box 1 also includes a copper busbar 14 , which is connected to the lower end of the three-position disconnector 12 , and three grounding contacts 141 are provided on the copper busbar 14 .

[0061] In this way, the use of the grounding contact 141 can effectively protect personal safety and avoid personal injury caused by electrical equipment failure.

[0062] According to some embodiments of the present application, optionally, Figure 8 As shown, the connection terminal 114 is provided with four interfaces 1141 .

[0063] Thus, the connection terminal 114 is provided with four interfaces 1141, and two interfaces 1141 can be used as spare interfaces 1141. In some embodiments, the connection terminal 114 can also be provided with six or eight interfaces 1141 or more.

[0064] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An air box, characterized in that: include: A permanent magnet circuit breaker, the permanent magnet circuit breaker comprising three permanent magnets, a vacuum interrupter, a wire slot and a terminal block, the vacuum interrupter being located below the three permanent magnets, the wire slot being installed on one side of the three permanent magnets, the terminal block being installed on the wire slot, the positive poles of the three permanent magnets being integrated into a positive pole wire, the negative poles of the three permanent magnets being integrated into a negative pole wire, the positive pole wire and the negative pole wire being connected to one end of the terminal block through the wire slot, and the other end of the terminal block being used to be connected to an aviation socket; A three-position isolating switch is electrically connected to the static end of the vacuum interrupter.

2. The air box according to claim 1, characterized in that The wire trough comprises a mounting hole, and the mounting hole is mounted on one side of the three permanent magnets through a mounting fastener.

3. The air box according to claim 1, characterized in that: The lower end of the wire trough is also provided with more than two avoidance holes, and the avoidance holes are used to avoid circuit breaker fasteners.

4. The air box according to claim 1, characterized in that The wire slot is in an inverted L-shape, and the upper side of the inverted L-shape extends toward the permanent magnet.

5. The air box according to claim 1, characterized in that: The air box further comprises six side expansion sleeves, and the air box is provided with one side expansion sleeve on both sides of each permanent magnet.

6. The air box according to claim 1, characterized in that The gas box also includes a copper busbar, which is connected to the lower end of the three-position disconnector, and three grounding contacts are arranged on the copper busbar.

7. The air box according to claim 1, characterized in that The connection terminal is provided with four interfaces.

8. A ring main unit, characterized in that: It comprises a base, an instrument box, a mechanism chamber and an air box as described in any one of claims 1 to 7, wherein the air box is arranged on one side of the base, the mechanism chamber is arranged on the other side of the base, and the instrument box is arranged on the upper surface of the mechanism chamber near the air box.

9. The ring main unit according to claim 8, characterized in that: The mechanism chamber includes an operating mechanism and an isolation mechanism. The operating mechanism and the isolation mechanism are arranged on one side of the mechanism chamber close to the gas box, and the isolation mechanism is arranged below the operating mechanism. The operating mechanism is rotatably connected to the permanent magnetic circuit breaker and is used to control the opening of the permanent magnetic circuit breaker. The isolating mechanism is rotatably connected to the three-position isolating switch and is used to control the three-position isolating switch to switch between the three positions of closing, opening and grounding.

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