CN219918180U - Ring main unit and ring main unit - Google Patents

Abstract

The embodiment of the utility model provides a ring main unit and a ring main unit, and relates to the field of electrical equipment. The ring main unit comprises a main unit body, an air box, a first partition board and at least two groups of cable components; wherein, every cable subassembly of group is including operating device and the cable joint that is connected, and at least two operating device crisscross sets up in the inner chamber of the cabinet body, and first baffle forms between the cabinet body and gas tank, and at least two cable joint all runs through and sets up in first baffle. This looped netowrk cabinet is through setting up two at least groups cable assemblies to including two at least cable joints, make can satisfy the demand when needs external power supply unit. Moreover, at least two operating mechanisms are arranged in a staggered way, so that the space nearby a single operating mechanism can be ensured, and the operating mechanisms are prevented from being too compact to be convenient to maintain; and the space utilization of the inner cavity of the cabinet body can be improved, and the situation that the cabinet body and the ring main unit are too large in size and occupy too space resources is avoided. The ring main unit comprises a ring main unit, and has all functions of the ring main unit.

Description

Ring main unit and ring main unit

Technical Field

The utility model relates to the field of electrical equipment, in particular to a ring main unit and a ring main unit.

Background

The ring main unit is an electric device which is formed by installing a group of power transmission and distribution electric devices in a metal or nonmetal insulation cabinet body or making an assembled interval ring main power supply unit.

At least two ring main units are usually arranged in a ring main unit on a road, and a common ring main unit is only provided with a group of cable assemblies, and no leading-out node exists, so that the use requirement cannot be met when external power supply equipment is needed; the ring main units provided with a plurality of groups of cable assemblies are too compact or the operating mechanisms arranged side by side, so that the maintenance is inconvenient; or is huge and occupies too much road resources.

Disclosure of Invention

The utility model provides a ring main unit and a ring main unit, which can reasonably arrange an operating mechanism in a limited space, can meet the requirement of external power supply equipment, is convenient to maintain, and does not occupy road data too much.

Embodiments of the utility model may be implemented as follows:

the embodiment of the utility model provides a ring main unit, which comprises:

the cabinet body, the gas tank, the first partition board and at least two groups of cable assemblies;

wherein, every cable subassembly of group is including operating device and the cable joint that is connected, and at least two operating device crisscross sets up in the inner chamber of the cabinet body, and first baffle forms between the cabinet body and gas tank, and at least two cable joint all runs through and sets up in first baffle.

Optionally, the cabinet body includes mechanism room and cable chamber, and the cable chamber is located the downside of mechanism room, and first baffle is located gas tank and operating device holding in mechanism room, and first baffle forms between gas tank and cable chamber, and cable joint's one end holding is in the gas tank, and cable joint's the other end holding is in the cable chamber.

Optionally, first baffle is including the first diaphragm, first riser, second diaphragm, second riser and the third diaphragm that connect gradually, and the second diaphragm is less than first diaphragm and third diaphragm setting simultaneously, and the partial inner chamber of gas tank is located between first riser and the second riser, and first riser and second riser all run through and are provided with cable joint.

Optionally, the ring main unit further includes a second partition board, the second partition board is accommodated in an inner cavity of the cable chamber and connected with the second transverse board, the second partition board separates the inner cavity of the cable chamber into a first cable cavity and a second cable cavity, and the first cable cavity and the second cable cavity are respectively accommodated with ends of different cable connectors.

Optionally, the ring main unit further comprises a movable door plate, the movable door plate is rotatably connected to the cable chamber, and the movable door plate is used for sealing the first cable chamber and/or the second cable chamber.

Optionally, the second spacer is adjacent to the plane of the second riser relative to the plane of the first riser.

Optionally, each group of cable assemblies further comprises a load switch, the load switch is connected between the cable connector and the operating mechanism, and at least two load switches are arranged in the inner cavity of the air box in a staggered manner.

Optionally, the cabinet body further comprises an instrument room, and the instrument room is arranged on the upper side of the mechanism room.

Optionally, the ring main unit further comprises a reinforcing rib, and the reinforcing rib is connected to the side wall of the air box.

The embodiment of the utility model also provides a ring main unit, which comprises the ring main unit.

The ring main unit and the ring main unit of the embodiment of the utility model have the beneficial effects that:

the ring main unit comprises a main unit body, an air box, a first partition board and at least two groups of cable components; wherein, every cable subassembly of group is including operating device and the cable joint that is connected, and at least two operating device crisscross sets up in the inner chamber of the cabinet body, and first baffle forms between the cabinet body and gas tank, and at least two cable joint all runs through and sets up in first baffle. This looped netowrk cabinet is through crisscross two at least operating device that set up, is convenient for maintain when can satisfying external power supply unit to can not too occupy the road data.

This looped netowrk case, including the looped netowrk cabinet, it possesses the whole functions of looped netowrk cabinet.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a first view angle of a ring main unit according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second view angle of the ring main unit according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a third view angle of the ring main unit according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of a first separator provided in an embodiment of the present utility model.

Icon: 100-ring main unit; 110-a cabinet body; 111-a mechanism chamber; 112-cable chamber; 1121-a first cable cavity; 1122-a second cable lumen; 113-an instrument room; 120-gas box; 130-a first separator; 131-a first cross plate; 132—a first riser; 133-a second cross plate; 134-a second riser; 135-a third cross plate; 136-a pressure relief vent; 140-cable assembly; 141-an operating mechanism; 142-cable joint; 143-load switches; 150-a second separator; 160-a movable door panel; 170-reinforcing ribs; 180-connecting sleeve.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Unless specifically stated or limited otherwise, terms such as "disposed," "connected," and the like should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

The ring main unit is an electrical device with a group of high-voltage switch devices arranged in a steel plate metal cabinet body or made into an assembled interval ring main unit, and the core part of the ring main unit adopts a load switch and a fuse, and has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The system is widely applied to distribution stations of load centers such as urban residential communities, high-rise buildings, large public buildings, factory enterprises and the like and box-type ring main units.

In the prior art, a ring main unit is usually installed on a motor vehicle lane on a road and a middle green belt of a pavement, and at least two ring main units are arranged in the ring main unit. The general ring main unit is only provided with a group of cable assemblies, and no leading-out node exists, so that the use requirement cannot be met when external power supply equipment is needed; the ring main units provided with a plurality of groups of cable assemblies are too compact or the operating mechanisms arranged side by side, so that the maintenance is inconvenient; or the size is huge, and the road resources are excessively occupied due to the influence on the internal layout of the ring main unit.

Referring to fig. 1-4, the ring main unit 100 and the ring main unit provided in the embodiments of the present utility model can solve the above-mentioned problems, and will be described in detail below.

Referring to fig. 1-3, the ring main unit 100 includes a cabinet 110, an air box 120, a first partition 130, and at least two sets of cable assemblies 140; each set of cable assemblies 140 includes an operating mechanism 141 and a cable connector 142, wherein the operating mechanisms 141 are connected, at least two operating mechanisms 141 are staggered in the inner cavity of the cabinet 110, the first partition 130 is formed between the cabinet 110 and the air box 120, and at least two cable connectors 142 are all arranged in the first partition 130 in a penetrating manner.

The ring main unit 100 is provided with at least two groups of cable assemblies 140 and comprises at least two cable connectors 142, so that the requirement can be met when external power supply equipment is required. In addition, at least two operating mechanisms 141 are arranged in a staggered way, so that the space nearby a single operating mechanism 141 can be ensured, and the operating mechanisms 141 are prevented from being too compact to be convenient to maintain; and the space utilization of the inner cavity of the cabinet body 110 can be improved, and the situation that the cabinet body 110 and the ring main unit 100 occupy too large space resources is avoided.

It is noted that each set of cable assemblies 140 further includes a load switch 143, wherein the load switch 143 is connected between the cable connector 142 and the operating mechanism 141, and at least two load switches 143 are staggered in the cavity of the air box 120. Three medium-voltage arc-extinguishing grids are arranged on each load switch 143, and when the knife switches are separated, the generated arc discharge can be cut off.

Moreover, the cable assembly 140 further includes a connection sleeve 180, where the connection sleeve 180 is used to implement cable connection between different ring main units 100, so that the different ring main units 100 form a complete power distribution system through circuit connection.

A connection copper bar is also provided in the inner cavity of the gas tank 120 for achieving electrical connection between the elements. In order to ensure safe operation, the static distance between the copper bars and the ground is not less than 30mm.

Referring to fig. 2 and 3, the cabinet 110 includes a mechanism chamber 111 and a cable chamber 112, the cable chamber 112 is located at a lower side of the mechanism chamber 111, the first partition 130 is located between the air box 120 and the operating mechanism 141 and is received in the mechanism chamber 111, the first partition 130 is formed between the air box 120 and the cable chamber 112, one end of the cable joint 142 is received in the air box 120, and the other end of the cable joint 142 is received in the cable chamber 112.

Specifically, in the present embodiment, the number of the cable assemblies 140 is two, the number of the corresponding cable connectors 142 and the number of the operating mechanisms 141 are also two, and the two operating mechanisms 141 are respectively disposed on the upper left side and the lower right side of the mechanism chamber 111, so as to achieve the technical effect of staggered arrangement, and fully ensure the free space around the two operating mechanisms 141, so as to facilitate maintenance or service operation on the operating mechanisms 141. The cable chamber 112 may house electrical components such as a voltage transformer and a transformer, and the voltage transformer may be connected to one of the cable connectors 142, so that the other cable connector 142 is used for external power supply.

Of course, in other embodiments of the present utility model, the number of cable assemblies 140 may be three, four, five, etc., and a corresponding number of cable assemblies 140 may be arranged as needed in a suitable space of the ring main unit 100.

Referring to fig. 1 to 3, the cabinet 110 further includes an instrument room 113, and the instrument room 113 is disposed at an upper side of the mechanism room 111. In the above technical solution, the instrument room 113 is used for installing secondary components, so as to realize real-time monitoring of various components of the ring main unit 100, and display through instrument indication values.

It is noted that a plurality of through holes are formed in the outer side wall of the instrument room 113, so that shielding of the display part of the mounted secondary component is avoided, and visual reading is facilitated. Specifically, the through holes have a circular shape, a rectangular shape, and are provided in a plurality in number. In other embodiments of the present utility model, the number of the through holes may be triangular, diamond, or other shapes, and the specific arrangement shape is not limited.

Referring to fig. 1 and 3, the ring main unit 100 further includes a reinforcing rib 170, where the reinforcing rib 170 is connected to a side wall of the gas tank 120, and the reinforcing rib 170 may be specifically disposed on an inner side and/or an outer side of the weather, and is mainly used for enhancing structural strength of the gas tank 120.

Referring to fig. 3 and 4, the first separator 130 includes a first diaphragm 131, a first riser 132, a second diaphragm 133, a second riser 134, and a third diaphragm 135 connected in sequence, the second diaphragm 133 is simultaneously lower than the first diaphragm 131 and the third diaphragm 135, a part of an inner cavity of the air box 120 is located between the first riser 132 and the second riser 134, and the first riser 132 and the second riser 134 are all provided with a cable connector 142 therethrough.

Specifically, the first transverse plate 131 may also separate the mechanism chamber 111 from the cable chamber 112, the first transverse plate 131 is disposed at a higher level than the second transverse plate 133 is disposed at a higher level than the third transverse plate 135, and the three transverse plates are parallel to each other. The top ends of the first risers 132 are higher than the top ends of the second risers 134, and the bottom ends remain flush. By providing the first partition 130 with a specific shape and structure, two cable connectors 142 can be respectively penetrated through the first riser 132 and the second riser 134, so that the wires of the two cable connectors 142 are opposite, and each cable connector 142 has enough wire connection space.

It should be noted that through holes corresponding to the cable connectors 142 are formed in each of the first riser 132 and the second riser 134 so as to accommodate the cable connectors 142. In addition, the number of through holes is adapted to the number of pins on the cable connector 142, and in this embodiment, the number of through holes on the first riser 132 and the second riser 134 is three.

Referring to fig. 3, ring main unit 100 further includes a second partition 150, where second partition 150 is accommodated in the inner cavity of cable chamber 112 and connected to second cross plate 133, and second partition 150 divides the inner cavity of cable chamber 112 into a first cable cavity 1121 and a second cable cavity 1122, and ends of different cable connectors 142 are accommodated in first cable cavity 1121 and second cable cavity 1122, respectively.

In the above technical solution, by providing the partition board, on one hand, the inner cavity of the cable chamber 112 can be partitioned, so that electrical components such as a voltage transformer and a transformer can be conveniently installed in the first cable chamber 1121, and the second cable chamber 1122 is connected with a power supply connector of high-voltage equipment.

Referring to fig. 1 and 3, the ring main unit 100 further includes a movable door 160, where the movable door 160 is rotatably connected to the cable chamber 112, and the movable door 160 is configured to seal the first cable cavity 1121 and/or the second cable cavity 1122. The ring main unit 100 is provided with a movable door panel 160 for realizing sealing protection of the first cable cavity 1121 or the second cable cavity 1122.

Specifically, the side edges of the movable door panel 160 are connected to the side walls of the cable chamber 112 through hinges, and the movable door panel 160 is rotated in the left-right direction, so as to avoid the influence of self gravity during the up-down rotation.

Referring to fig. 3 and 4, the second separator 150 is adjacent to the plane of the second riser 134 with respect to the plane of the first riser 132. And, the third transverse plate 135 is provided with a pressure relief hole 136, the pressure relief hole 136 is used for accommodating a pressure relief valve, when the air pressure in the air box 120 is too large, the air can be leaked into the second cable cavity 1122 through the pressure relief valve, so that the damage to the air box 120 and the internal electrical components caused by the too large air pressure is avoided.

The embodiment of the utility model also provides a ring main unit, which comprises the ring main units 100, wherein the number of the ring main units 100 in the ring main unit is at least two, and the ring main units 100 are connected with each other. The ring main unit comprises a ring main unit 100, and has all the functions of the ring main unit 100.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A ring main unit, characterized by comprising:

a cabinet (110), an air box (120), a first partition (130), and at least two sets of cable assemblies (140);

each group of cable assemblies (140) comprises an operating mechanism (141) and a cable connector (142) which are connected, at least two operating mechanisms (141) are arranged in the inner cavity of the cabinet body (110) in a staggered mode, the first partition plate (130) is formed between the cabinet body (110) and the air box (120), and at least two cable connectors (142) are arranged in the first partition plate (130) in a penetrating mode.

2. The ring main unit according to claim 1, wherein the cabinet body (110) comprises a mechanism chamber (111) and a cable chamber (112), the cable chamber (112) is located at the lower side of the mechanism chamber (111), the first partition (130) is located at the air box (120) and the operating mechanism (141) and is contained in the mechanism chamber (111), the first partition (130) is formed between the air box (120) and the cable chamber (112), one end of the cable joint (142) is contained in the air box (120), and the other end of the cable joint (142) is contained in the cable chamber (112).

3. The ring main unit according to claim 2, wherein the first partition plate (130) comprises a first transverse plate (131), a first vertical plate (132), a second transverse plate (133), a second vertical plate (134) and a third transverse plate (135) which are sequentially connected, the second transverse plate (133) is lower than the first transverse plate (131) and the third transverse plate (135) at the same time, a part of an inner cavity of the air box (120) is located between the first vertical plate (132) and the second vertical plate (134), and the first vertical plate (132) and the second vertical plate (134) are all provided with the cable connectors (142) in a penetrating manner.

4. A ring main unit according to claim 3, further comprising a second partition (150), the second partition (150) being accommodated in the inner cavity of the cable chamber (112) and being connected to the second cross plate (133), the second partition (150) dividing the inner cavity of the cable chamber (112) into a first cable cavity (1121) and a second cable cavity (1122), the first cable cavity (1121) and the second cable cavity (1122) respectively accommodating ends of different cable connectors (142).

5. The ring main unit according to claim 4, further comprising a movable door plate (160), the movable door plate (160) being rotatably connected to the cable chamber (112), the movable door plate (160) being adapted to seal the first cable chamber (1121) and/or the second cable chamber (1122).

6. The ring main unit according to claim 4, wherein the second partition (150) is located close to the plane of the second riser (134) with respect to the plane of the first riser (132).

7. The ring main unit according to any one of claims 1-6, wherein each set of cable assemblies (140) further comprises a load switch (143), the load switch (143) being connected between the cable connector (142) and the operating mechanism (141), at least two of the load switches (143) being staggered in the inner cavity of the gas tank (120).

8. The ring main unit according to any of claims 2-6, wherein the main unit (110) further comprises an instrument room (113), the instrument room (113) being arranged on an upper side of the mechanism room (111).

9. The ring main unit according to any one of claims 1-6, further comprising a stiffener (170), the stiffener (170) being connected to a side wall of the gas tank (120).

10. A ring main unit comprising a ring main unit as claimed in any one of claims 1 to 9.