In-cabinet installation structure of small-resistance grounding device

Abstract

The utility model relates to the technical field of resistor cabinet installation structures, and provides an in-cabinet installation structure of a small resistor grounding device, which comprises a cabinet body, resistors, connecting insulators and fixed insulators, the resistors are arranged in the cabinet body and are vertically arranged, two ends of each connecting insulator are respectively connected with two vertically adjacent resistors, and the fixed insulators are respectively connected with the connecting insulators. One end of each fixed insulator is arranged on the resistor, the other end of each fixed insulator is fixedly arranged relative to the inner wall of the cabinet body, and fixed insulators are arranged on two sides and the bottom of the resistor. According to the technical scheme, the problems that in the prior art, resistors in a resistor cabinet are not standard in installation and arrangement, space is wasted, and mess is caused are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of resistor cabinet installation structure, specifically to an in-cabinet installation structure for a small resistor grounding device. Background Technology

[0002] In modern power systems, low-resistance grounding devices play a crucial role, widely used in power plants, substations, and various industrial power distribution systems to limit ground fault currents and ensure the safe and stable operation of the power system. With the continuous development of power technology, increasingly higher demands are being placed on the performance, reliability, and ease of installation and maintenance of low-resistance grounding devices.

[0003] Traditional resistor cabinets suffer from numerous drawbacks in design and installation. Resistor cabinets inherently have limited space, making internal arrangement a challenge. Current usage demands have increased the number of components and resistors within the cabinet, further exacerbating congestion and arrangement difficulties. Unnecessary gaps exist between some resistors, resulting in significant waste of space. In summary, existing resistor cabinets, once installed, suffer from non-standard resistor arrangements, wasting space and creating a cluttered appearance.

[0004] Therefore, there is an urgent need for a new cabinet-mounted structure for low-resistance grounding devices to solve these problems. Utility Model Content

[0005] This utility model proposes an in-cabinet installation structure for a small-resistance grounding device, which solves the problems of non-standard resistor installation and arrangement, wasted space, and messiness in related technologies.

[0006] The technical solution of this utility model is as follows: a cabinet installation structure for a small resistance grounding device, including a cabinet, a resistor, a connecting insulator, and a fixed insulator. The resistor is installed inside the cabinet. There are multiple resistors arranged vertically. The two ends of the connecting insulator are respectively connected to two adjacent resistors. One end of the fixed insulator is installed on the resistor, and the other end is used to fix it relative to the inner wall of the cabinet. Fixed insulators are provided on both sides and the bottom of the resistor.

[0007] Optionally, it also includes a first fixed beam and a second fixed beam, both of which are fixedly disposed relative to the inner wall of the cabinet. Both the first fixed beam and the second fixed beam are arranged vertically. The fixed insulator located to the right of the resistor is disposed on the first fixed beam, and the fixed insulator located to the left of the resistor is disposed on the second fixed beam.

[0008] Optionally, it also includes reinforcing beams, which are arranged horizontally on the inner wall of the cabinet. There are multiple reinforcing beams, which are arranged vertically, and the first fixing beam is disposed on the reinforcing beams.

[0009] Optionally, there are two second fixed beams that are parallel to each other. The second fixed beams have multiple mounting holes I along their length direction and also include a mounting beam. Each end of the mounting beam has a mounting hole II, which is used to cooperate with the mounting holes I. The mounting beam is used to install electrical components.

[0010] Optionally, it also includes a load-bearing beam, which is located on the bottom wall of the cabinet. The fixed insulator located at the bottom of the resistor is located on the load-bearing beam. The top end of the second fixed beam is located on the inner wall of the cabinet, and the bottom end is located on the load-bearing beam.

[0011] Optionally, it also includes mounting ears, connecting rods, and pressure plates. The mounting ears are provided on both the first fixed beam and the second fixed beam. One end of the connecting rod is hinged to the mounting ear, and the other end is hinged to the pressure plate. The mounting ears and the connecting rods are arranged in pairs. The pressure plate and the two connecting rods form a parallelogram structure. The pressure plate is used to abut against the side of the resistor.

[0012] Optionally, it also includes a stud and a lock nut, wherein the stud is disposed on the mounting lug, the hinge hole at the end of the connecting rod is sleeved on the stud, and the lock nut is threadedly connected to the stud for locking the connecting rod.

[0013] Optionally, the surface of the pressure plate facing the resistor has a flexible damping layer.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] Multiple resistors are arranged vertically inside the cabinet. When arranged vertically, each resistor is securely connected to adjacent resistors via connecting insulators. Each insulator connects to the two resistors above and below it, with appropriate gaps between adjacent resistors to ensure proper airflow and heat dissipation. Fixed insulators provide comprehensive support and fixation on both sides and bottom of the resistors. One end of the fixed insulator is bolted to the resistor housing, while the other end is fixed to the inner wall of the cabinet, ensuring the resistor remains stable and prevents shaking or displacement.

[0016] By arranging multiple resistors vertically and connecting and fixing them with connecting and fixing insulators, the resistors are arranged neatly and orderly inside the cabinet, effectively avoiding space waste and solving the problem of non-standard resistor arrangement in traditional resistor cabinets. This makes it easier for installers to operate the equipment and also facilitates subsequent maintenance and repair work.

[0017] The gaps left by the connecting insulators when connecting adjacent resistors form natural heat dissipation channels. Hot air can naturally convect upwards along these channels and dissipate, effectively reducing the operating temperature of the resistors and preventing performance degradation or damage due to heat accumulation. Attached Figure Description

[0018] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0019] Figure 1 A schematic diagram of the cabinet installation structure of a small resistance grounding device;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Cabinet, 2. Resistor, 3. Connecting insulator, 4. Fixed insulator, 5. First fixed beam, 6. Second fixed beam, 7. Reinforcing beam, 8. Mounting hole one, 9. Mounting beam, 10. Mounting hole two, 11. Load-bearing beam, 12. Mounting lug, 13. Connecting rod, 14. Pressure plate, 15. Stud, 16. Locking nut, 17. Flexible damping layer. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0023] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0024] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Reference Figures 1-2 This is the first embodiment of the present invention, which proposes an in-cabinet installation structure for a small resistance grounding device, including a cabinet 1, a resistor 2, a connecting insulator 3, and a fixed insulator 4. The resistor 2 is disposed inside the cabinet 1, and there are multiple resistors 2 arranged vertically. The two ends of the connecting insulator 3 are respectively connected to two adjacent resistors 2. One end of the fixed insulator 4 is disposed on the resistor 2, and the other end is used to fix it relative to the inner wall of the cabinet 1. The fixed insulator 4 is disposed on both sides and the bottom of the resistor 2.

[0027] In this embodiment, multiple resistors 2 are placed vertically inside the cabinet 1. When arranged vertically, each resistor 2 is securely connected to adjacent resistors 2 via connecting insulators 3. The two ends of the connecting insulator 3 are connected to the two resistors 2 above and below, respectively, with a suitable gap between adjacent resistors 2 to ensure smooth airflow and meet heat dissipation requirements. Fixed insulators 4 provide comprehensive support and fixation on both sides and the bottom of the resistors 2. One end of the fixed insulator 4 is fixed to the outer shell of the resistor 2 by bolts, while the other end is fixed relative to the inner wall of the cabinet 1, ensuring the resistors 2 remain stable and prevent shaking or displacement.

[0028] By arranging multiple resistors 2 vertically and connecting and fixing them using connecting insulators 3 and fixing insulators 4, the resistors 2 form a neat and orderly layout inside the cabinet 1, effectively avoiding space waste and solving the problem of non-standard resistor arrangement in traditional resistor cabinets. This makes it easier for installers to operate and also facilitates subsequent maintenance and repair work.

[0029] The gaps left by the connecting insulator 3 when connecting adjacent resistors 2 form natural heat dissipation channels. Hot air can naturally convect upwards along these channels and dissipate, effectively reducing the operating temperature of resistors 2 and preventing performance degradation or damage to resistors 2 due to heat accumulation.

[0030] Furthermore, it also includes a first fixed beam 5 and a second fixed beam 6. The first fixed beam 5 and the second fixed beam 6 are both fixedly arranged relative to the inner wall of the cabinet 1. The first fixed beam 5 and the second fixed beam 6 are both arranged vertically. The fixed insulator 4 located on the right side of the resistor 2 is arranged on the first fixed beam 5, and the fixed insulator 4 located on the left side of the resistor 2 is arranged on the second fixed beam 6.

[0031] Furthermore, it also includes a reinforcing beam 7, which is arranged horizontally on the inner wall of the cabinet 1. There are multiple reinforcing beams 7, which are arranged vertically, and the first fixing beam 5 is arranged on the reinforcing beam 7.

[0032] In this embodiment, multiple reinforcing beams 7 are installed vertically at equal intervals on the inner wall of the cabinet 1. A first fixing beam 5 is fixed vertically to the reinforcing beams 7, using welding or bolt connections to ensure a secure connection. A fixing insulator 4 located to the right of the resistor 2 is fixed to the first fixing beam 5. A second fixing beam 6 is fixed vertically inside the cabinet 1, and a fixing insulator 4 located to the left of the resistor 2 is installed on the second fixing beam 6. When installing the resistor 2, the fixed insulators 4 on both sides securely support and position the resistor 2 inside the cabinet 1, providing reliable lateral support and positioning.

[0033] The reinforcing beam 7 and the first fixed beam 5 form a crisscrossing frame structure, which enhances the stability of the internal installation structure of the entire cabinet 1 and can effectively disperse the various external forces on the resistor 2.

[0034] The layout of the first fixed beam 5 and the second fixed beam 6 allows for a rational division of the internal space of cabinet 1. Resistors 2 will not shift arbitrarily or occupy other space, making the use of the internal space of cabinet 1 more efficient. At the same time, it also reserves neat space for the arrangement of other auxiliary equipment or wiring, facilitating subsequent wiring, connection, and the installation and maintenance of other equipment, further improving the practicality and maintainability of the entire resistor cabinet.

[0035] Furthermore, there are two second fixed beams 6 that are parallel to each other. The second fixed beam 6 has a plurality of mounting holes 8 along its own length direction and also includes a mounting beam 9. Each end of the mounting beam 9 has a mounting hole 10. The mounting hole 10 is used to cooperate with the mounting hole 8. The mounting beam 9 is used to install electrical components.

[0036] Furthermore, it also includes a load-bearing beam 11, which is located on the bottom wall of the cabinet 1. The fixed insulator 4 located at the bottom of the resistor 2 is located on the load-bearing beam 11. The top end of the second fixed beam 6 is located on the inner wall of the cabinet 1, and the bottom end is located on the load-bearing beam 11.

[0037] In this embodiment, the load-bearing beam 11 is installed along the bottom wall of the cabinet 1 to ensure its levelness and stability. Two parallel second fixing beams 6 are installed inside the cabinet 1, with their top ends connected to the inner wall of the cabinet 1 and their bottom ends fixed to the installed load-bearing beam 11. Multiple mounting holes 8 are machined on the second fixing beams 6 according to predetermined spacing and design requirements.

[0038] When electrical components need to be installed, according to the connection requirements between the electrical components and resistor 2 and the internal space layout of cabinet 1, select the appropriate height position of mounting hole 1 8, align the mounting holes 2 10 at both ends of mounting beam 9 with it, and then insert bolts or pins to fix mounting beam 9 on the second fixed beam 6.

[0039] The fixed insulator 4 at the bottom of resistor 2 is fixed to the load-bearing beam 11, so that resistor 2 is stably supported vertically. Together with the fixed insulators 4 on both sides fixed by the second fixed beam 6, it ensures the precise position and stability of resistor 2 in cabinet 1.

[0040] The mounting beam 9 and the second fixed beam 6 are connected by a structure with multiple mounting holes 8 and 10, enabling height-adjustable installation. This allows for flexible selection of resistors 2 with different mounting heights and resistance values ​​within the cabinet 1, based on the needs of different electrical components. This results in neater, shorter, and more rational electrical connection lines between electrical components and resistors 2. It reduces circuit detours and intersections, improving the electrical performance and stability of the entire small-resistance grounding device.

[0041] Furthermore, it also includes a mounting ear 12, a connecting rod 13, and a pressure plate 14. The mounting ear 12 is provided on both the first fixed beam 5 and the second fixed beam 6. One end of the connecting rod 13 is hinged to the mounting ear 12, and the other end is hinged to the pressure plate 14. The mounting ear 12 and the connecting rod 13 are arranged in pairs. The pressure plate 14 and the two connecting rods 13 form a parallelogram structure. The pressure plate 14 is used to abut against the side of the resistor 2.

[0042] Furthermore, it also includes a stud 15 and a locking nut 16. The stud 15 is provided on the mounting lug 12, the hinge hole at the end of the connecting rod 13 is sleeved on the stud 15, and the locking nut 16 is threadedly connected to the stud 15 for locking the connecting rod 13.

[0043] Furthermore, the surface of the pressure plate 14 facing the resistor 2 has a flexible damping layer 17.

[0044] In this embodiment, after the resistor 2 is installed in the cabinet 1 and the fixed insulator 4 is in place, if the resistor cabinet needs to be transported (e.g., after assembly, it is transported to the site of use, or it needs to be returned to the manufacturer for maintenance), the operator first loosens the locking nut 16, at which point the connecting rod 13 is in a movable state. Then, the connecting rod 13 is swung. Since the connecting rod 13 and the pressure plate 14 form a parallelogram structure, the swinging of the connecting rod 13 will cause the pressure plate 14 to move closer to the side of the resistor 2. After the pressure plate 14 is tightly against the side of the resistor 2, the locking nut 16 is tightened to fix the connecting rod 13 in the current position, so that the pressure plate 14 can continuously provide additional support for the resistor 2, preventing the resistor 2 from being damaged by shaking during transportation.

[0045] The flexible shock-absorbing layer 17 on the side of the pressure plate 14 facing the resistor 2 can effectively absorb and buffer the vibration energy when the resistor cabinet is vibrated during transportation, and prevent the vibration from being directly transmitted to the resistor 2 and causing damage.

[0046] Once the resistor cabinet has been transported to its destination and installed, the connecting rod 13 and pressure plate 14 can be retracted to facilitate subsequent maintenance operations or reduce space occupation. Simply loosen the locking nut 16 again, swing the connecting rod 13 in the opposite direction, and let the pressure plate 14 move away from the side of the resistor 2 under the action of the parallelogram structure and fit against the first fixed beam 5 or the second fixed beam 6. Then tighten the locking nut 16 to fix the connecting rod 13 in the retracted position.

[0047] Because the parallelogram structure formed by the pressure plate 14 and the connecting rod 13 has unique motion characteristics, the pressure plate 14 can be easily retracted and attached to the fixed beam in the non-transportation state, without taking up a large amount of extra space inside the cabinet 1.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cabinet-mounted structure for a low-resistance grounding device, characterized in that, The device includes a cabinet (1), resistors (2), connecting insulators (3) and fixed insulators (4). The resistors (2) are located inside the cabinet (1). There are multiple resistors (2) arranged vertically. The two ends of the connecting insulators (3) are respectively connected to two adjacent resistors (2) above and below. One end of the fixed insulator (4) is located on the resistor (2), and the other end is used to fix it relative to the inner wall of the cabinet (1). The fixed insulators (4) are provided on both sides and the bottom of the resistors (2).

2. The cabinet mounting structure for a small resistance grounding device according to claim 1, characterized in that, It also includes a first fixed beam (5) and a second fixed beam (6). The first fixed beam (5) and the second fixed beam (6) are both fixedly arranged relative to the inner wall of the cabinet (1). The first fixed beam (5) and the second fixed beam (6) are both arranged vertically. The fixed insulator (4) located to the right of the resistor (2) is arranged on the first fixed beam (5), and the fixed insulator (4) located to the left of the resistor (2) is arranged on the second fixed beam (6).

3. The cabinet installation structure of a small resistance grounding device according to claim 2, characterized in that, It also includes a reinforcing beam (7), which is arranged horizontally on the inner wall of the cabinet (1). There are multiple reinforcing beams (7), which are arranged vertically. The first fixed beam (5) is arranged on the reinforcing beam (7).

4. The cabinet mounting structure for a small resistance grounding device according to claim 3, characterized in that, The second fixed beam (6) consists of two parallel beams. The second fixed beam (6) has multiple mounting holes (8) along its length and also includes a mounting beam (9). Each end of the mounting beam (9) has a mounting hole (10). The mounting hole (10) is used to cooperate with the mounting hole (8). The mounting beam (9) is used to install electrical components.

5. The cabinet mounting structure for a small resistance grounding device according to claim 4, characterized in that, It also includes a load-bearing beam (11), which is located on the bottom wall of the cabinet (1). The fixed insulator (4) located at the bottom of the resistor (2) is located on the load-bearing beam (11). The top of the second fixed beam (6) is located on the inner wall of the cabinet (1), and the bottom is located on the load-bearing beam (11).

6. The cabinet mounting structure for a small resistance grounding device according to claim 5, characterized in that, It also includes mounting ears (12), connecting rods (13) and pressure plates (14). The mounting ears (12) are provided on both the first fixed beam (5) and the second fixed beam (6). One end of the connecting rod (13) is hinged to the mounting ear (12), and the other end is hinged to the pressure plate (14). The mounting ears (12) and the connecting rods (13) are arranged in pairs. The pressure plate (14) and the two connecting rods (13) form a parallelogram structure. The pressure plate (14) is used to abut against the side of the resistor (2).

7. The cabinet mounting structure for a small resistance grounding device according to claim 6, characterized in that, It also includes a stud (15) and a locking nut (16). The stud (15) is provided on the mounting lug (12). The hinge hole at the end of the connecting rod (13) is sleeved on the stud (15). The locking nut (16) is threaded onto the stud (15) and is used to lock the connecting rod (13).

8. The cabinet mounting structure of a small resistance grounding device according to claim 7, characterized in that, The pressure plate (14) has a flexible damping layer (17) on the side facing the resistor (2).

Images