Low voltage switchgear structure

Abstract

The utility model relates to the technical field of incoming line cabinet, concretely is a kind of low voltage incoming line cabinet structure, including base, bus chamber module, circuit breaker chamber module, control chamber module and feeder chamber module, the modularization setting is used in the present application, bus chamber module, circuit breaker chamber module, control chamber module and feeder chamber module are split, and bus chamber module, circuit breaker chamber module, control chamber module and feeder chamber module are combined using base.In use, bus chamber module, circuit breaker chamber module, control chamber module and feeder chamber module can be conveniently carried to the inside of integrated step-up system box, and meanwhile, the layout between each module can be changed according to the structure inside the box, so it is flexible and convenient to use, and very suitable for use in integrated step-up system scene.

Description

Technical Field

[0001] This utility model relates to the field of incoming line cabinet technology, specifically a low-voltage incoming line cabinet structure. Background Technology

[0002] Low-voltage incoming switchgear is a key piece of equipment in the low-voltage distribution section of a power system. It is usually located at the low-voltage side outlet of the transformer and is the first link in the transmission of electrical energy from the transformer to the low-voltage busbar.

[0003] In integrated step-up systems (such as energy storage converter-step-up units and photovoltaic inverter-step-up devices), the low-voltage incoming switchgear is a crucial component connecting power generation equipment (such as photovoltaic panels, wind power, and energy storage systems) to the step-up transformer. Therefore, the low-voltage incoming switchgear needs to be housed within the integrated step-up system enclosure. Existing general-purpose low-voltage incoming switchgear is bulky, difficult to move into the enclosure, and cannot be modularly installed, making it unsuitable for integrated step-up system environments. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a low-voltage incoming line cabinet structure to solve the problem that the existing power distribution equipment has a single type of power supply terminal and is prone to power outages due to faults.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model discloses a low-voltage incoming line cabinet structure, including a base, a busbar compartment module, a circuit breaker compartment module, a control room module, and a feeder compartment module;

[0007] The bottom of the base is provided with an alignment and fixing mechanism for fixing the base to the housing of the integrated energy storage converter and booster system; the base is provided with a mounting bracket plate.

[0008] The busbar compartment module, the circuit breaker compartment module, the control room module, and the feeder compartment module all include a cuboid frame and a partition, and the partition can be detachably installed on one or more surfaces of the cuboid frame;

[0009] The busbar compartment module, the circuit breaker compartment module, the control room module, and the feeder compartment module are detachably mounted on the mounting bracket plate. The shape of the incoming line cabinet structure is determined based on the busbar compartment module, the circuit breaker compartment module, the control room module, and the feeder compartment module and their arrangement.

[0010] In one embodiment of this application, the alignment and fixing mechanism includes an alignment post disposed on the bottom surface of the base. The alignment post is provided with an elastic locking component inside. The alignment post is used to insert into an alignment groove preset in the floor of the integrated booster system enclosure, and the alignment post is locked in the alignment groove based on the elastic locking component.

[0011] In one embodiment of this application, the side wall of the alignment post is provided with a movable hole whose axis is perpendicular to the axis of the alignment post. The elastic locking assembly includes a spring and a locking buckle. The spring is disposed in the movable hole, one end of the locking buckle abuts against the spring, and the other end of the locking buckle is located outside the movable hole.

[0012] In one embodiment of this application, the cuboid frame is provided with a plurality of evenly distributed mounting holes, and the edge of the partition is provided with a plurality of through holes that match the mounting holes. After the through holes of the partition are aligned with the mounting holes of the cuboid frame, they are fixed by bolts and nuts.

[0013] In one embodiment of this application, the mounting bracket plate is provided with a plurality of bracket holes that match the mounting holes. The width of the mounting bracket plate is smaller than the width of the cuboid frame. The mounting holes of the cuboid frame are aligned with the bracket holes of the mounting bracket plate and then fixed by bolts and nuts.

[0014] In one embodiment of this application, a limiting body is provided at one end of the locking buckle and inside the opening of the movable hole, so that one end of the locking buckle is limited to the movable hole.

[0015] In one embodiment of this application, the busbar compartment module is provided with a busbar, and the circuit breaker compartment module is provided with a circuit breaker mounting bracket.

[0016] The beneficial effects of this utility model are as follows: This utility model provides a low-voltage incoming line cabinet structure, including a base, a busbar compartment module, a circuit breaker compartment module, a control room module, and a feeder compartment module. This application adopts a modular design, separating the busbar compartment module, circuit breaker compartment module, control room module, and feeder compartment module, and using the base to combine them. In use, the busbar compartment module, circuit breaker compartment module, control room module, and feeder compartment module can be easily transported into the integrated step-up system enclosure. Furthermore, the layout of each module can be changed according to the internal structure of the enclosure, making it flexible and convenient to use, and highly suitable for integrated step-up system applications. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the integrated boost system in one embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the low-voltage incoming line cabinet structure in one embodiment of this application;

[0020] Figure 3This is a schematic diagram of the alignment and fixing mechanism in one embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the cuboid frame structure in one embodiment of this application;

[0022] Figure 5 This is a schematic diagram of a 2*2 arrangement in one embodiment of this application;

[0023] Figure 6 This is a schematic diagram of the vertical arrangement in one embodiment of this application;

[0024] 1-Base, 11-Mounting bracket plate, 111-Bracket hole;

[0025] 2-Busbar compartment module;

[0026] 3-Circuit breaker compartment module;

[0027] 4-Control Room Module;

[0028] 5-Feeder compartment module;

[0029] 6- Rectangular frame, 61- Mounting holes;

[0030] 7-Partition plate, 71-Through hole. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0032] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the layers related to the present invention and are not drawn according to the actual number, shape and size of the layers in the actual implementation. In the actual implementation, the form, number and proportion of each layer can be arbitrarily changed, and the layer layout may also be more complex.

[0033] Numerous details are explored in the following description to provide a more thorough explanation of embodiments of the present invention; however, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details.

[0034] Figure 1 This is a schematic diagram of the integrated boost converter system in one embodiment of this application, as shown below. Figure 1 As shown, the low-voltage incoming line cabinet shown in this application is located between the converter PCS (dashed box) and the transformer, with the output cable of the converter PCS as the incoming line, and the output cable of the low-voltage incoming line cabinet connected to the primary side (low-voltage side) of the transformer.

[0035] Figure 2 This is a schematic diagram of the low-voltage incoming line cabinet structure in one embodiment of this application, as shown below. Figure 2 As shown, a low-voltage incoming line cabinet structure of this utility model includes a base 1, a busbar compartment module 2, a circuit breaker compartment module 3, a control room module 4, and a feeder compartment module 5;

[0036] The bottom of the base 1 is provided with an alignment and fixing mechanism for fixing the base 1 to the inside of the energy storage converter booster integrated system; the base 1 is provided with a mounting bracket plate 11;

[0037] This application is used in integrated booster systems, where an alignment groove is pre-set at the bottom of the integrated booster system enclosure. During installation, the alignment and fixing mechanism of the base is inserted into the alignment groove to achieve alignment.

[0038] Busbar compartment module 2 is equipped with busbars, and circuit breaker compartment module 3 is equipped with circuit breaker mounting brackets.

[0039] Figure 3 This is a schematic diagram of the alignment and fixing mechanism in one embodiment of this application, as shown below. Figure 3 The alignment and fixing mechanism in this application has a self-locking function. Its specific structure includes: an alignment post 12 set on the bottom surface of the base 1, an elastic locking component inside the alignment post 12, the alignment post 12 is used to insert into the alignment groove preset on the floor of the integrated booster system box, and the alignment post 12 is locked in the alignment groove based on the elastic locking component.

[0040] The alignment post 12 has a movable hole on its side wall with an axis perpendicular to the axis of the alignment post 12. The elastic locking assembly includes a spring 13 and a locking buckle 14. The spring 13 is disposed in the movable hole, one end of the locking buckle 14 abuts against the spring 13, and the other end of the locking buckle 14 is located outside the movable hole. Both one end of the locking buckle 14 and the inner side of the opening of the movable hole are provided with limiting bodies so that one end of the locking buckle 14 is limited to the movable hole.

[0041] Specifically, during installation, the alignment pin 12 is inserted into the alignment groove, and the locking buckle 14 retracts under the action of the spring. Upon reaching the preset position, it springs into the recess on the side wall of the alignment groove, achieving self-locking. During removal, forcefully lifting upwards forces the locking buckle 14 to compress the spring, thus removing it.

[0042] Busbar compartment module 2, circuit breaker compartment module 3, control room module 4 and feeder compartment module 5 all include a cuboid frame 6 and a partition 7, and the partition can be detachably installed on one or more surfaces of the cuboid frame;

[0043] Figure 4 This is a schematic diagram of the cuboid frame structure in one embodiment of this application, as shown below. Figure 4 As shown, busbar compartment module 2, circuit breaker compartment module 3, control room module 4, and feeder compartment module 5 are all rectangular frames constructed from hollow metal profiles. The rectangular frame 6 includes a mating surface and side surfaces. Multiple evenly distributed mounting holes 61 are provided on the profiles of both the mating surface and side surfaces. The edge of the partition 7 has multiple through holes 71 that match the mounting holes. When installing the partition 7, the through holes 71 of the partition 7 are aligned with the mounting holes 61 on the side profiles of the rectangular frame 6, and then it is fixed with bolts and nuts.

[0044] In addition, the mounting bracket plate 11 is provided with multiple bracket holes 111 that match the mounting holes 61. The width of the mounting bracket plate 11 is smaller than the width of the cuboid frame 6. When fixing the cuboid frame 6 to the mounting bracket plate 11, the mounting holes 61 of the mating surface profile of the cuboid frame 6 are aligned with the bracket holes 111 of the mounting bracket plate 11 and then fixed with bolts and nuts. Thus, the busbar compartment module 2, circuit breaker compartment module 3, control room module 4, and feeder compartment module 5 can be detachably mounted on the mounting bracket plate 11.

[0045] The form of the incoming line cabinet is determined based on the arrangement of busbar compartment module 2, circuit breaker compartment module 3, control room module 4, and feeder compartment module 5.

[0046] Figure 5 This is a schematic diagram of a 2*2 arrangement in one embodiment of this application, as shown below. Figure 5 As shown, in this embodiment, there are three mounting bracket plates 11. The middle mounting bracket plate 11 contains two rows of bracket holes 111. By arranging them in a 2*2 configuration, the overall height of the incoming line cabinet can be reduced.

[0047] Figure 6 This is a schematic diagram of the vertical arrangement in one embodiment of this application, as shown below. Figure 6 As shown, in this embodiment, there are two mounting brackets 11, which are installed vertically to save horizontal space.

[0048] This utility model discloses a low-voltage incoming line cabinet structure, comprising a base, a busbar compartment module, a circuit breaker compartment module, a control room module, and a feeder compartment module. This application adopts a modular design, separating the busbar compartment module, circuit breaker compartment module, control room module, and feeder compartment module, and using the base to combine them. In use, the busbar compartment module, circuit breaker compartment module, control room module, and feeder compartment module can be easily transported into the integrated step-up system enclosure. Furthermore, the layout of each module can be changed according to the internal structure of the enclosure, making it flexible and convenient to use, and highly suitable for integrated step-up system applications.

[0049] In the above embodiments, although the present invention has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims.

[0050] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A low-voltage incoming line cabinet structure, characterized in that, It includes a base (1), a busbar compartment module (2), a circuit breaker compartment module (3), a control room module (4), and a feeder compartment module (5); The bottom of the base (1) is provided with an alignment and fixing mechanism for fixing the base (1) to the box of the energy storage converter booster integrated system; the base (1) is provided with a mounting bracket plate (11). The busbar compartment module (2), the circuit breaker compartment module (3), the control room module (4) and the feeder compartment module (5) all include a cuboid frame (6) and a partition (7), and the partition can be detachably installed on one or more surfaces of the cuboid frame; The busbar compartment module (2), the circuit breaker compartment module (3), the control room module (4), and the feeder compartment module (5) are detachably mounted on the mounting bracket plate (11). The shape of the incoming line cabinet structure is determined based on the arrangement of the busbar compartment module (2), the circuit breaker compartment module (3), the control room module (4), and the feeder compartment module (5).

2. The low-voltage incoming line cabinet structure according to claim 1, characterized in that, The alignment and fixing mechanism includes an alignment post (12) disposed on the bottom surface of the base (1). The alignment post (12) is provided with an elastic locking component inside. The alignment post (12) is used to insert into the alignment groove preset in the floor of the integrated booster system box, and the alignment post (12) is locked in the alignment groove based on the elastic locking component.

3. The low-voltage incoming line cabinet structure according to claim 2, characterized in that, The alignment post (12) has a movable hole on its side wall with an axis perpendicular to the axis of the alignment post (12). The elastic locking assembly includes a spring (13) and a locking buckle (14). The spring (13) is disposed in the movable hole. One end of the locking buckle (14) abuts against the spring (13), and the other end of the locking buckle (14) is located outside the movable hole.

4. The low-voltage incoming line cabinet structure according to claim 1, characterized in that, The cuboid frame (6) is provided with a plurality of evenly distributed mounting holes (61), and the edge of the partition (7) is provided with a plurality of through holes (71) that match the mounting holes. After the through holes (71) of the partition (7) are aligned with the mounting holes (61) of the cuboid frame (6), they are fixed by bolts and nuts.

5. The low-voltage incoming line cabinet structure according to claim 4, characterized in that, The mounting bracket plate (11) is provided with a plurality of bracket holes (111) that match the mounting holes (61). The width of the mounting bracket plate (11) is smaller than the width of the cuboid frame (6). The mounting holes (61) of the cuboid frame (6) are aligned with the bracket holes (111) of the mounting bracket plate (11) and then fixed by bolts and nuts.

6. The low-voltage incoming line cabinet structure according to claim 3, characterized in that, One end of the locking buckle (14) and the inner side of the opening of the movable hole are both provided with limiting bodies, so that one end of the locking buckle (14) is limited to the movable hole.

7. The low-voltage incoming line cabinet structure according to claim 1, characterized in that, The busbar compartment module (2) is equipped with a busbar, and the circuit breaker compartment module (3) is equipped with a circuit breaker mounting bracket.

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