CN224177802U - New energy box becomes low-voltage cabinet - Google Patents

Abstract

This utility model discloses a low-voltage switchgear for new energy transformer substations. A frame circuit breaker is installed in the upper half of the switchgear. A low-voltage incoming copper busbar extending from front to back is connected to the upper end of the frame circuit breaker, and a low-voltage outgoing copper busbar extending from top to bottom is connected to the lower end of the frame circuit breaker. A low-voltage busbar, horizontally insulated and fixed between the left and right side walls of the switchgear, is connected to the lower end of the low-voltage outgoing copper busbar. A maintenance compartment is located on the right side wall of the switchgear, housing miniature circuit breakers, relays, and terminal blocks. This utility model transfers low-voltage power distribution components to the maintenance compartment on the right side of the switchgear, effectively avoiding the risk of electric shock to maintenance personnel operating inside the switchgear and solving the problem of inconvenience caused by limited space. It also offers the advantages of modularity, integration, and convenience.

Description

New energy box becomes low-voltage cabinet

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to a new energy box low-voltage cabinet.

Background

The new energy box transformer is an indispensable part of wind power generation and photovoltaic power generation systems, and has been widely applied and popularized in the global scope. Such devices typically comprise three main parts in structural design, namely a high voltage cabinet, a transformer cabinet and a low voltage cabinet. In particular, a frame breaker, a control transformer, a miniature breaker, a relay, a wiring terminal and the like are mainly installed in the low-voltage cabinet. However, in conventional designs, all of these electrical components are often centrally mounted within a relatively compact cabinet. For example, a new energy tank transformer low-voltage unit disclosed in patent specification CN221380092U of U.S. patent No. CN221380092, 7, 19 of 2024, shows this arrangement. The arrangement mode causes crowding of the internal space of the cabinet body due to too concentrated elements, which not only makes the installation and disassembly work complex and time-consuming, thereby reducing the working efficiency, but also brings inconvenience to the operation of operation and maintenance personnel in the cabinet body. In addition, the crowded space increases the risk of damaging the electrical equipment. More seriously, during maintenance, the operation and maintenance personnel may inadvertently contact the exposed live area (mainly the low-voltage incoming and outgoing copper bars connected by the frame circuit breaker) in the low-voltage cabinet, which may not only damage the electrical equipment, but also threaten the safety of the operation and maintenance personnel.

Disclosure of utility model

The utility model innovatively provides the new energy box low-voltage cabinet, which can effectively avoid the electric shock risk caused by the operation and maintenance personnel entering the cabinet body, effectively solve the problem of inconvenient operation caused by limited space of the cabinet body and has the advantages of modularization, integration and convenience.

In order to achieve the technical purpose, the utility model discloses a new energy box low-voltage cabinet which comprises a cabinet body, wherein a frame breaker is arranged in the upper half part of the cabinet body, the upper opening of the frame breaker is connected with a low-voltage incoming copper bar extending from front to back, the lower opening of the frame breaker is connected with a low-voltage outgoing copper bar extending from top to bottom, the lower end of the low-voltage outgoing copper bar is connected with a low-voltage bus copper bar which is transversely and insulated and fixed between the left side wall and the right side wall of the cabinet body, an overhaul compartment is arranged outside the right side wall of the cabinet body, and a miniature breaker, a relay and a wiring terminal are arranged in the overhaul compartment.

Furthermore, the low-voltage cabinet of the new energy box is characterized in that an axial flow fan mounting frame is arranged below the rear side of the cabinet body, the axial flow fan mounting frame is Z-shaped, the middle of the Z-shaped is obliquely arranged from top to bottom from back to front, and two mounting holes are formed in the middle of the Z-shaped in a left-right mode.

Furthermore, the low-voltage cabinet of the new energy box disclosed by the utility model is characterized in that the upper end of the rear side of the cabinet body is fixedly provided with the metal plate bracket of the low-voltage cabinet, and the left-view section of the metal plate bracket of the low-voltage cabinet is in a U shape with an upward opening.

Furthermore, the utility model relates to a new energy box low-voltage cabinet, wherein a front wiring groove and a rear wiring groove are fixed in the overhaul compartment, the front wiring groove and the rear wiring groove are arranged at intervals in the front-back direction, a plurality of middle wiring grooves are fixed between the front wiring groove and the rear wiring groove, the middle wiring grooves are uniformly arranged at intervals from top to bottom, clamping rails are fixed above each middle wiring groove, and the miniature circuit breaker, the relay and the wiring terminals are clamped on the clamping rails.

Furthermore, the utility model relates to a new energy box low-voltage cabinet, wherein a left door plate and a right door plate are arranged on the front side of a cabinet body, a fluorescent optical fiber temperature measuring device, a meter, a temperature and humidity controller and a socket are arranged on the left door plate, and an active control terminal, a measurement and control device, a frame breaker panel, an indicator light, a button and a connecting piece are arranged on the right door plate.

Furthermore, the utility model relates to a new energy box low-voltage cabinet, wherein a UPS host and a control transformer are arranged outside the left side wall of the cabinet body, and the UPS host is positioned on the upper side of the control transformer.

Furthermore, the new energy box becomes low-voltage cabinet, wherein a dehumidifier is arranged at one side of the cabinet body close to the overhaul compartment.

Furthermore, the new energy box low-voltage cabinet provided by the utility model is characterized in that the low-voltage outgoing copper bar is sleeved with the current transformer.

Furthermore, the low-voltage cabinet of the new energy box is characterized in that a left bus-bar clamp is fixed on the left side in the cabinet body, a right bus-bar clamp matched with the left bus-bar clamp is fixed on the right side in the cabinet body, jacks are formed in the middle of the left bus-bar clamp and the middle of the right bus-bar clamp, the left end and the right end of the low-voltage bus-bar copper bar are respectively inserted into the jacks of the left bus-bar clamp and the right bus-bar clamp, and the left bus-bar clamp and the right bus-bar clamp are made of insulating materials.

Furthermore, the utility model relates to a new energy box low-voltage cabinet, wherein a plurality of copper wiring noses are fixed at the lower end of a low-voltage bus copper bar.

The utility model is characterized in that a cabinet body is arranged, a frame breaker is arranged in the upper half part of the cabinet body, the upper opening of the frame breaker is connected with a low-voltage wire inlet copper bar extending from front to back, the lower opening of the frame breaker is connected with a low-voltage wire outlet copper bar extending from top to bottom, the lower end of the low-voltage wire outlet copper bar is connected with a low-voltage bus copper bar which is transversely and insulated and fixed between the left side wall and the right side wall of the cabinet body, an overhaul compartment is arranged outside the right side wall of the cabinet body, and a miniature breaker, a relay and a wiring terminal are arranged in the overhaul compartment, so that the novel energy box low-voltage cabinet which is modularized, integrated and convenient is formed. When in actual use, the cabinet body is matched with the transformer cabinet for use, the low-voltage wire inlet copper bar is connected with the low-voltage output side of the transformer, and power distribution and transmission are carried out through the low-voltage bus copper bar and the miniature circuit breaker, the relay and the wiring terminal in the overhaul compartment. The utility model discloses the type is whole to be shifted to the maintenance compartment on the external right side wall of low-voltage cabinet, makes maintenance compartment separate with the internal naked electrified region of cabinet, can make the internal overall arrangement of low-voltage cabinet compacter like this, can guarantee the security of fortune dimension personnel when the maintenance distribution device again to can also provide abundant maintenance space for fortune dimension personnel, no longer receive the internal space restriction of cabinet.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a new energy box low-voltage cabinet of the utility model;

FIG. 2 is a schematic view of a perspective structure of a new energy box at another angle to a low-voltage cabinet of the utility model;

Fig. 3 is a schematic diagram of a right-side view structure of a low-voltage cabinet of the new energy box.

Detailed Description

The new energy box low-voltage cabinet is explained and illustrated in detail below with reference to the attached drawings.

As shown in fig. 1, the utility model discloses a new energy box low-voltage cabinet, which comprises a cabinet body 1, wherein a frame breaker 2 is arranged in the upper half part of the cabinet body 1, the upper opening of the frame breaker 2 is connected with a low-voltage wire inlet copper bar 3 extending from front to back, the lower opening of the frame breaker 2 is connected with a low-voltage wire outlet copper bar 4 extending from top to bottom, the lower end of the low-voltage wire outlet copper bar 4 is connected with a low-voltage bus copper bar 5 which is transversely and insulated and fixed between the left side wall and the right side wall of the cabinet body 1, an overhaul compartment 6 is arranged outside the right side wall of the cabinet body 1, and a miniature breaker, a relay and a wiring terminal are arranged in the overhaul compartment 6, so that the new energy box low-voltage cabinet which is modularized, integrated and convenient is obtained. When in actual use, the cabinet body 1 is matched with the transformer cabinet for use, the low-voltage wire inlet copper bar 3 is connected with the low-voltage output side of the transformer, and power is distributed through the low-voltage bus copper bar 5 and the miniature circuit breaker, the relay and the wiring terminal in the overhaul compartment 6. The utility model discloses in the type all shifts the power distribution device to the overhaul compartment 6 on the outer right side wall of the low-voltage cabinet body 1, make overhaul compartment 6 separate with the interior naked electrified region of cabinet body 1, can be like this the overall arrangement compacter in the low-voltage cabinet, can guarantee the security of fortune dimension personnel when overhauling the power distribution device again to can also provide abundant overhaul space for fortune dimension personnel, no longer receive cabinet body 1 interior space restriction.

As shown in fig. 2, an axial flow fan mounting bracket 7 is provided below the rear side of the cabinet body 1, the shape of the axial flow fan mounting bracket 7 is set in a zigzag shape such that the middle part of the zigzag shape is inclined from top to bottom from the rear to the front, and two mounting holes 71 provided left and right (i.e., one mounting hole 71 is provided on the left and one mounting hole 71 is provided on the right) are provided in the middle part of the zigzag shape. The axial fan mounting frame 7 is used for mounting the axial fan, and when the axial fan is mounted, the outer wall of the axial fan is mounted in the mounting hole 71, so that the air outlet of the axial fan faces the cabinet body 1, and as the axial fan mounting frame 7 has an inclined angle, the air blowing direction of the axial fan can be guaranteed to be the largest with the contact surface of the low-voltage wire inlet copper bar 3, the low-voltage wire outlet copper bar and the low-voltage bus copper bar 5 connected with the frame breaker 2, and the radiating effect is further improved.

As shown in fig. 3, a low-voltage cabinet sheet metal bracket 8 is fixed at the upper end of the rear side of the cabinet body 1, and the left-view section of the low-voltage cabinet sheet metal bracket 8 is in a U shape with an upward opening. During assembly, one end of the low-voltage cabinet plate support is fixed with the cabinet body 1 of the low-voltage cabinet, the other end of the low-voltage cabinet plate support is fixedly connected with the cabinet body 1 of the transformer cabinet, and then the purpose of fixing the low-voltage cabinet is achieved, stability of the low-voltage cabinet during transportation and operation and maintenance is guaranteed, and safety of assembly and construction is guaranteed.

As shown in fig. 3, a front wiring groove 61 and a rear wiring groove 62 are fixed in the overhaul compartment 6, so that the front wiring groove 61 and the rear wiring groove 62 are arranged at intervals from front to back, a plurality of middle wiring grooves 63 are fixed between the front wiring groove 61 and the rear wiring groove 62, the plurality of middle wiring grooves 63 are uniformly arranged at intervals from top to bottom, clamping rails are fixed above each middle wiring groove 63, and the miniature circuit breaker, the relay and the wiring terminals are clamped on the clamping rails. The connecting wires on the miniature circuit breaker, the relay and the wiring terminal can be arranged in the wiring groove, so that the wiring of the overhaul compartment 6 is neat, and the subsequent operation and maintenance are more convenient.

As shown in fig. 1 and fig. 2, a UPS host 13 and a control transformer 14 are installed outside the left side wall of the cabinet body 1, the UPS host 13 is located on the upper side of the control transformer 14, the UPS host 13 and the control transformer 14 are installed on one side, close to the overhaul compartment 6, of the cabinet body 1, a dehumidifier 15 is installed, and a current transformer 41 is sleeved on the low-voltage outgoing copper bar 4.

As shown in fig. 1, the low-voltage cabinet door board adopts a split mode, a left door board 11 and a right door board 12 are arranged on the front side of the cabinet body 1, the area ratio of the left door board 11 to the right door board 12 is 1:3, and a fluorescent optical fiber temperature measuring device 111, a meter 112, a temperature and humidity controller 113 and a socket 114 are arranged on the left door board 11. The fluorescent optical fiber temperature measuring device 111 can select 9 channels or 6 channels of temperature measuring points to detect the temperatures of the low-voltage incoming copper bar 3, the low-voltage outgoing copper bar 4 and the low-voltage bus copper bar 5 in the low-voltage cabinet body 1 in real time. The meter 112 may be a voltmeter, ammeter, or the like. The temperature and humidity controller 113 can detect the temperature in the low-voltage cabinet in real time to start the axial flow fan or the dehumidifier 15 to cool or dehumidify, so as to ensure that the temperature and humidity in the low-voltage cabinet are stable within a proper range and meet the normal operation conditions of equipment in the low-voltage cabinet. The receptacle 114 may be used to temporarily power. The right door panel 12 is provided with an active control terminal 121, a measurement and control device 122, a frame breaker 2 panel, an indicator lamp 123, a button and a connecting piece 124. Through the mode of door plant components and parts function subregion overall arrangement, it is more orderly clean and tidy to make the wiring on the low-voltage cabinet door plant, makes things convenient for components and parts installation maintenance.

As shown in fig. 2, a left bus bar 51 is fixed on the left side in the cabinet body 1, a right bus bar 51 matched with the left bus bar 51 is fixed on the right side in the cabinet body 1, jacks are formed in the middle of the left bus bar 51 and the right bus bar 51, the left end and the right end of the low-voltage bus bar 5 are respectively inserted into the jacks of the left bus bar 51 and the right bus bar 51 to fix the low-voltage bus bar 5, the left bus bar 51 and the right bus bar 51 are made of insulating materials, a plurality of copper wire lugs 52 are fixed at the lower end of the low-voltage bus bar 5, and a cable can be connected to a miniature circuit breaker through the copper wire lugs 52 to carry out power distribution, so that the connection is faster and more convenient.

As shown in fig. 1, hanging rings are respectively arranged at four corners of the top of the cabinet body 1, so that the low-voltage cabinet can be conveniently hoisted or carried.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. 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.

In the description of the present specification, the descriptions of the terms "present embodiment," "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any modifications, equivalents, and simple improvements made within the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The low-voltage cabinet is characterized by comprising a cabinet body, wherein a frame breaker is arranged in the upper half part of the cabinet body, the upper opening of the frame breaker is connected with a low-voltage incoming wire copper bar extending from front to back, the lower opening of the frame breaker is connected with a low-voltage outgoing wire copper bar extending from top to bottom, the lower end of the low-voltage outgoing wire copper bar is connected with a low-voltage bus copper bar which is transversely and insulated and fixed between the left side wall and the right side wall of the cabinet body, an overhaul compartment is arranged outside the right side wall of the cabinet body, and a miniature breaker, a relay and a wiring terminal are arranged in the overhaul compartment.

2. The low-voltage cabinet of the new energy box of claim 1, wherein an axial flow fan mounting frame is arranged below the rear side of the cabinet body, the axial flow fan mounting frame is Z-shaped, the middle of the Z-shape is obliquely arranged from top to bottom from back to front, and two mounting holes are formed in the middle of the Z-shape in a left-right mode.

3. The low-voltage cabinet of the new energy tank of claim 2, wherein the upper end of the rear side of the cabinet body is fixedly provided with a low-voltage cabinet metal plate bracket, and the left-view section of the low-voltage cabinet metal plate bracket is U-shaped with an upward opening.

4. The new energy box low-voltage cabinet of claim 3, wherein a front wiring groove and a rear wiring groove are fixed in the overhaul compartment, the front wiring groove and the rear wiring groove are arranged at intervals from front to back, a plurality of middle wiring grooves are fixed between the front wiring groove and the rear wiring groove, the middle wiring grooves are uniformly arranged at intervals from top to bottom, a clamping rail is fixed above each middle wiring groove, and the miniature circuit breaker, the relay and the wiring terminal are clamped on the clamping rail.

5. The low-voltage cabinet of the new energy box of claim 4, wherein a left door plate and a right door plate are arranged on the front side of the cabinet body, a fluorescent optical fiber temperature measuring device, a meter, a temperature and humidity controller and a socket are arranged on the left door plate, and an active control terminal, a measurement and control device, a frame breaker panel, an indicator light, a button and a connecting piece are arranged on the right door plate.

6. The new energy box low-voltage cabinet of claim 5, wherein the UPS host and the control transformer are arranged outside the left side wall of the cabinet body, and the UPS host is positioned on the upper side of the control transformer.

7. The new energy box low-voltage cabinet of claim 6, wherein a dehumidifier is arranged on one side of the cabinet body close to the overhaul compartment.

8. The new energy box low-voltage cabinet of claim 7, wherein the low-voltage outgoing copper bar is sleeved with a current transformer.

9. The low-voltage cabinet of the new energy box is characterized in that a left bus bar clamp is fixed on the left side in the cabinet body, a right bus bar clamp matched with the left bus bar clamp is fixed on the right side in the cabinet body, insertion holes are formed in the middle of the left bus bar clamp and the middle of the right bus bar clamp, the left end and the right end of the low-voltage bus bar copper bar are respectively inserted into the insertion holes of the left bus bar clamp and the right bus bar clamp, and the left bus bar clamp and the right bus bar clamp are made of insulating materials.

10. The new energy box low-voltage cabinet of claim 9, wherein a plurality of copper wiring noses are fixed at the lower end of the low-voltage bus copper bar.