Ring main unit gas box and ring main unit

Abstract

The present invention relates to a ring network cabinet gas box, comprising a box body, an isolating switch and a switch support mechanism, wherein the box body comprises a left box plate and a right box plate; the isolating switch is arranged in the box body, and the switch support mechanism is used to support the isolating switch, and the switch support mechanism comprises a switch support plate and a support member, and the two ends of the switch support plate are respectively connected to the left box plate and the right box plate, and the support member is arranged on the switch support plate, and the support member is used to support the bottom of the isolating switch. Different from the prior art, the present invention can support the bottom of one end or the other end of the isolating switch through the support member, and transfer the gravity of the isolating switch from the switch support plate to the left box plate and the right box plate, thereby effectively improving the support force for the isolating switch, and avoiding the problem that the bottom of the isolating switch moves downward, which causes the overall failure of the ring network cabinet.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main unit, and in particular to a ring main unit gas box and a ring main unit. Background Art

[0002] Ring Main Unit is a group of electrical equipment (high voltage switchgear) installed in a metal or non-metallic insulated cabinet or assembled into a spaced ring main unit. Its core part uses load switches and fuses. It has the advantages of simple structure, small size, low price, and can improve power supply parameters and performance as well as power supply safety.

[0003] In the process of implementing the present invention, the inventors found that the prior art has the following problems:

[0004] In the prior art, one end of the isolating switch is supported by a three-position mechanism, and the other end of the isolating switch is connected to the box only by a connecting plate. Since the isolating switch is generally heavy, after long-term use, the other end of the isolating switch is prone to move downward, which can easily cause the overall failure of the ring network cabinet. Summary of the invention

[0005] To this end, it is necessary to provide a ring main unit gas box and a ring main unit to solve the technical problem in the prior art that since the weight of the isolating switch is generally heavy, after long-term use, the other end of the isolating switch is prone to move downward, which can easily lead to the overall failure of the ring main unit.

[0006] To achieve the above object, the inventor provides a ring main unit gas box, comprising

[0007] A box body, the box body comprising a left box board and a right box board;

[0008] an isolating switch, the isolating switch being disposed in the box; and

[0009] A switch support mechanism, the switch support mechanism is used to support the isolating switch, the switch support mechanism includes a switch support plate and a support member, the two ends of the switch support plate are respectively connected to the left box plate and the right box plate, the support member is arranged on the switch support plate, and the support member is used to support the bottom of the isolating switch.

[0010] Different from the prior art, the technical solution of the present application supports the isolating switch through a switch support mechanism, the switch support mechanism includes a switch support plate and a support member, the two ends of the switch support plate are respectively connected to the left box plate and the right box plate, the support member is arranged on the switch support plate, and the support member is used to support the bottom of the isolating switch. In this way, the support member can support the bottom of one end or the other end of the isolating switch, and the gravity of the isolating switch is transferred from the switch support plate to the left box plate and the right box plate, thereby effectively improving the support force of the isolating switch, and avoiding the problem that the bottom of the isolating switch moves downward and causes the overall failure of the ring network cabinet.

[0011] As an embodiment of the present invention, the switch support plate is provided with more than two support members, the more than two support members are arranged in the horizontal direction, and the more than two support members are respectively located at different positions of the bottom of the isolating switch. In this way, different positions of the bottom of the isolating switch can be supported respectively by the more than two support members, further improving the supporting force of the isolating switch.

[0012] As an embodiment of the present invention, the box body further includes a front box plate and a rear sealing plate, the isolating switch includes an isolating switch bracket rear wall plate, the isolating switch bracket rear wall plate is connected to the rear sealing plate, the switch support plate is located below the isolating switch bracket rear wall plate, and the support member is used to support the bottom of the isolating switch bracket rear wall plate. In this way, the isolating switch bracket rear wall plate is connected to the front box plate, the gravity of the isolating switch bracket rear wall plate can be transferred to the rear sealing plate, and the isolating switch bracket rear wall plate can be supported by the support member to prevent the bottom of the isolating switch bracket rear wall plate from moving downward.

[0013] As an implementation mode of the present invention, the cross-sectional shape of the switch support plate is U-shaped. Thus, the bearing capacity of the switch support plate can be effectively improved by making the cross-sectional shape of the switch support plate U-shaped.

[0014] As an embodiment of the present invention, the switch support plate includes a first horizontal plate at the top, a second horizontal plate at the bottom, and a vertical plate connecting the first horizontal plate and the second horizontal plate. In this way, the support member can be arranged on the first horizontal plate, and the force of the support member is transmitted from the first horizontal plate to the vertical plate, and then from the vertical plate to the second horizontal plate, and finally to the box body.

[0015] As an embodiment of the present invention, a through hole for the support member to pass through is provided on the first transverse plate, and the support member passes through the through hole and is fixed to the first transverse plate by two first nuts. In this way, the support member is fixed to the first transverse plate by passing through the through hole and by two first nuts, which can improve the stability of the support member.

[0016] As an embodiment of the present invention, the top of the support member is provided with an external thread, and the switch support mechanism further includes a second nut, the second nut cooperates with the external thread, and the second nut is configured to adjust the support height of the support member when the second nut is rotated. In this way, the support height of the support member can be adjusted by rotating the second nut, thereby improving the adaptability of the switch support mechanism.

[0017] As an embodiment of the present invention, the two ends of the switch support plate are connected to the left box plate and the right box plate through a positioning plate, one end of the positioning plate is connected to the switch support plate, and the other end of the positioning plate is connected to the left box plate or the right box plate. In this way, the two ends of the switch support plate are connected to the left box plate and the right box plate through a positioning plate, respectively, which facilitates the connection between the switch support plate and the left box plate and the right box plate.

[0018] As an embodiment of the present invention, the cross-sectional shape of the positioning plate is L-shaped. Thus, by making the cross-sectional shape of the positioning plate L-shaped, half of the positioning plate is connected to the switch support plate, and the other half of the positioning plate is connected to the left box plate or the right box plate, thereby improving the connection strength of the positioning plate.

[0019] To achieve the above objectives, the inventors also provide a ring main unit, comprising any one of the ring main unit gas boxes provided by the above inventors.

[0020] Different from the prior art, the ring main unit of the technical solution of the present application has a support member that can support the bottom of one end or the other end of the isolating switch, and transfer the gravity of the isolating switch from the switch support plate to the left box plate and the right box plate, thereby effectively improving the supporting force for the isolating switch and avoiding the problem of the bottom of the isolating switch moving downward, which would cause the overall failure of the ring main unit.

[0021] The above-mentioned records related to the invention content 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 mode 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 A three-dimensional structural diagram of a ring main unit gas box according to an embodiment of the present application;

[0025] Figure 2 This is an internal front view of a ring main unit gas box according to an embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the interior of a ring main unit gas box according to an embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the interior of a ring main unit gas box from another angle according to an embodiment of the present application;

[0028] Figure 5 This is a schematic structural diagram of a switch support mechanism according to an embodiment of the present application.

[0029] The reference numerals in the above drawings are described as follows:

[0030] 11. Front box panel,

[0031] 12. Rear sealing board,

[0032] 13. Left box panel,

[0033] 14. Right box panel,

[0034] 2. Isolating switch,

[0035] 21. Rear wall panel of isolating switch bracket,

[0036] 22. Front wall panel of isolating switch bracket,

[0037] 31. Switch support plate,

[0038] 311, the first horizontal board,

[0039] 312, the second horizontal board,

[0040] 313. Vertical board,

[0041] 32. Supporting parts,

[0042] 33. The first nut,

[0043] 34. Second nut,

[0044] 35. Positioning plate,

[0045] 4. Circuit breaker operating mechanism,

[0046] 5. Three-station mechanism. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] The inventor found that in the prior art, one end of the isolating switch is supported by a three-position mechanism, and the other end of the isolating switch is only connected to the box body by a connecting plate. Since the weight of the isolating switch is generally heavy, after long-term use, the other end of the isolating switch is prone to move downward, which can easily cause the overall failure of the ring main unit.

[0057] Therefore, the present application embodiment provides a technical solution, please refer to Figures 1 to 5The present embodiment relates to a ring main unit gas box, including a box body, an isolating switch 2 and a switch supporting mechanism, the box body includes a left box plate 13 and a right box plate 14; the isolating switch 2 is arranged in the box body, the switch supporting mechanism is used to support the isolating switch 2, the switch supporting mechanism includes a switch supporting plate 31 and a supporting member 32, the two ends of the switch supporting plate 31 are respectively connected to the left box plate 13 and the right box plate 14, the supporting member 32 is arranged on the switch supporting plate 31, and the supporting member 32 is used to support the bottom of the isolating switch 2.

[0058] In this embodiment, the isolating switch 2 includes an isolating static contact and an isolating moving contact. The isolating static contact and the isolating moving contact are mutually closed and opened, thereby isolating the current.

[0059] In this embodiment, the switch support mechanism is used to support the disconnector 2, and the switch support mechanism includes a switch support plate 31 and a support member 32. The two ends of the switch support plate 31 are respectively connected to the left box plate 13 and the right box plate 14. The support member 32 is arranged on the switch support plate 31, and the support member 32 is used to support the bottom of the disconnector 2. In this way, the support member 32 can support the bottom of one end or the other end of the disconnector 2, and the gravity of the disconnector 2 is transferred from the switch support plate 31 to the left box plate 13 and the right box plate 14, so as to effectively improve the support force of the disconnector 2, and avoid the problem that the bottom of the disconnector 2 moves downward, which causes the overall failure of the ring network cabinet.

[0060] In some embodiments, Figure 3 As shown, the box body also includes a front box plate 11 and a rear sealing plate 12, and the isolating switch 2 includes an isolating switch bracket rear wall plate 21, which is connected to the rear sealing plate 12, and the switch support plate 31 is located below the isolating switch bracket rear wall plate 21, and the support member 32 is used to support the bottom of the isolating switch bracket rear wall plate 21. In this way, the isolating switch bracket rear wall plate 21 is connected to the front box plate 11, and the gravity of the isolating switch bracket rear wall plate 21 can be transferred to the rear sealing plate 12, and the isolating switch bracket rear wall plate 21 can be supported by the support member 32 to prevent the bottom of the isolating switch bracket rear wall plate 21 from moving downward.

[0061] In this embodiment, the isolating switch 2 further includes an isolating switch bracket front wall plate 22 , which is connected to the front box plate 11 , and the isolating switch bracket front wall plate 22 cooperates with the isolating switch bracket rear wall plate 21 to support the isolating switch 2 .

[0062] In some embodiments, Figure 4 as well as Figure 5As shown, the switch support plate 31 is provided with more than two support members 32, which are arranged in the horizontal direction and are respectively located at different positions of the bottom of the disconnector 2. In this way, different positions of the bottom of the disconnector 2 can be supported respectively by the more than two support members 32, thereby further improving the supporting force of the disconnector 2.

[0063] In some embodiments, the cross-sectional shape of the switch support plate 31 is U-shaped. Thus, by making the cross-sectional shape of the switch support plate 31 U-shaped, the bearing capacity of the switch support plate 31 can be effectively improved.

[0064] In some embodiments, the switch support plate 31 includes a first horizontal plate 311 at the top, a second horizontal plate 312 at the bottom, and a vertical plate 313 connecting the first horizontal plate 311 and the second horizontal plate 312. In this way, the support member 32 can be arranged on the first horizontal plate 311, and the force of the support member 32 is transmitted from the first horizontal plate 311 to the vertical plate 313, and the vertical plate 313 is transmitted to the second horizontal plate 312, and finally transmitted to the box body.

[0065] In some embodiments, the first transverse plate 311 is provided with a through hole for the support member 32 to pass through, and the support member 32 passes through the through hole and is fixed to the first transverse plate 311 by two first nuts 33. In this way, the support member 32 is fixed to the first transverse plate 311 by passing through the through hole and by two first nuts 33, which can improve the stability of the support member 32.

[0066] In some embodiments, the top of the support member 32 is provided with an external thread, and the switch support mechanism further includes a second nut 34, the second nut 34 cooperates with the external thread, and the second nut 34 is configured to adjust the support height of the support member 32 when the second nut 34 is rotated. In this way, the support height of the support member 32 can be adjusted by rotating the second nut 34, thereby improving the adaptability of the switch support mechanism.

[0067] In some embodiments, both ends of the switch support plate 31 are connected to the left box plate 13 and the right box plate 14 through a positioning plate 35, one end of the positioning plate 35 is connected to the switch support plate 31, and the other end of the positioning plate 35 is connected to the left box plate 13 or the right box plate 14. In this way, both ends of the switch support plate 31 are connected to the left box plate 13 and the right box plate 14 through a positioning plate 35, which facilitates the connection between the switch support plate 31 and the left box plate 13 and the right box plate 14.

[0068] In some embodiments, the cross-sectional shape of the positioning plate 35 is L-shaped. Thus, by making the cross-sectional shape of the positioning plate 35 L-shaped, half of the positioning plate 35 is connected to the switch support plate 31, and the other half of the positioning plate 35 is connected to the left box plate 13 or the right box plate 14, thereby improving the connection strength of the positioning plate 35.

[0069] This embodiment also involves a ring main unit, including a ring main unit gas box, a circuit breaker operating mechanism 4 and a three-position mechanism 5. The three-position mechanism 5 is used to rotate three movable disconnectors 2 of the disconnector 2, and the circuit breaker operating mechanism 4 is used to control the vacuum switch to move downward and upward. The circuit breaker operating mechanism 4 and the three-position mechanism 5 are conventional technical means and will not be described here.

[0070] The vacuum circuit breaker mainly consists of three parts: vacuum interrupter, electromagnetic or spring operating mechanism, bracket and other parts. The working principle of the vacuum circuit breaker is: when the moving and static contacts are opened under the action of the operating mechanism, an arc is generated between the contacts, and the contact surface evaporates steam at high temperature. Because the contacts are designed in a special shape, a magnetic field is generated when the current passes through. Under the action of this magnetic field, the arc moves rapidly along the tangent direction of the contact surface, and some metal vapor condenses on the metal cylinder (shielding cover). The arc is extinguished when it naturally crosses zero, and the dielectric strength between the contacts is quickly restored.

[0071] Different from the prior art, the ring main unit of the technical solution of the present application, the support member 32 can support the bottom of one end or the other end of the isolating switch 2, and transfer the gravity of the isolating switch 2 to the left box plate 13 and the right box plate 14 via the switch support plate 31, thereby effectively improving the supporting force for the isolating switch 2 and avoiding the problem that the bottom of the isolating switch 2 moves downward and causes the overall failure of the ring main unit.

[0072] It should be noted that, although the above embodiments have been described in this article, the scope of patent protection of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the patent of the present invention.

Claims

1. A ring main unit gas box, characterized in that: include A box body, the box body comprising a left box board and a right box board; An isolating switch, wherein the isolating switch is arranged in the box; as well as A switch support mechanism, the switch support mechanism is used to support the isolating switch, the switch support mechanism includes a switch support plate and a support member, the two ends of the switch support plate are respectively connected to the left box plate and the right box plate, the support member is arranged on the switch support plate, and the support member is used to support the bottom of the isolating switch; The isolating switch includes an isolating static contact and an isolating moving contact, which are mutually closed and opened. The support supports the bottom of one end or the other end of the isolating switch, and the gravity of the isolating switch is transferred from the switch support plate to the left box plate and the right box plate; The box body also includes a front box plate and a rear sealing plate, the isolating switch includes a rear wall plate of the isolating switch bracket, the rear wall plate of the isolating switch bracket is connected to the rear sealing plate, the switch support plate is located below the rear wall plate of the isolating switch bracket, and the support member is used to support the bottom of the rear wall plate of the isolating switch bracket. The isolating switch also includes a front wall plate of the isolating switch bracket, the front wall plate of the isolating switch bracket is connected to the front box plate, and the front wall plate of the isolating switch bracket and the rear wall plate of the isolating switch bracket cooperate with each other to carry the isolating switch; The switch support plate is provided with more than two support members, the more than two support members are arranged in the horizontal direction, and the more than two support members are respectively located at different positions of the bottom of the isolating switch. The switch support plate includes a first horizontal plate located at the top, a second horizontal plate located at the bottom, and a vertical plate connecting the first horizontal plate and the second horizontal plate. The first horizontal plate is provided with a through hole for accommodating the support member to pass through. The support member passes through the through hole and is fixed to the first horizontal plate by two first nuts. The top of the support member is provided with an external thread. The switch support mechanism also includes a second nut, the second nut is matched with the external thread, and the second nut is arranged so that when the second nut is rotated, the support height of the support member can be adjusted; The two ends of the switch support plate are respectively connected to the left box plate and the right box plate through a positioning plate, one end of the positioning plate is connected to the switch support plate, and the other end of the positioning plate is connected to the left box plate or the right box plate.

2. The ring main unit gas box according to claim 1, characterized in that: The cross-sectional shape of the switch support plate is U-shaped.

3. The ring main unit gas box according to claim 1, characterized in that: The cross-sectional shape of the positioning plate is L-shaped.

4. A ring main unit, characterized in that: include: The ring main unit gas box according to any one of claims 1 to 3.

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