Relay protection cabinet of transformer substation

Abstract

The utility model relates to a transformer substation relay protection cabinet, and the cabinet comprises a cabinet body which is internally provided with a cavity; the partition plate is arranged in the middle of the cavity in the cabinet body, and the partition plate divides the cavity into two mounting cavities which are arranged front and back; the two groups of mounting racks are respectively arranged in the mounting cavity and are used for mounting various electronic elements; according to the invention, external cold air can be directly fed into the air cavity through the air supply assemblies and sprayed to the electronic components, active air cooling heat dissipation of the electronic components is realized, and the ventilation holes are uniformly distributed in the two sides of the partition plate, so that the heat dissipation efficiency of the electronic components is improved, and the heat dissipation efficiency of the electronic components is improved. And the air supply assembly can provide stable airflow, so that uniform and effective heat dissipation of the electronic components in the two mounting cavities can be ensured, and the phenomenon of local overheating is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of substations, and in particular to a substation relay protection cabinet. Background Art

[0002] In power systems, substations are key nodes for the transmission and distribution of electrical energy, and their stable operation is crucial. Relay protection cabinets, crucial equipment within substations, monitor parameters such as current and voltage in the power system and rapidly disconnect related circuits when an anomaly or fault is detected, protecting the entire power system.

[0003] With the increasing complexity of power systems and the continuous increase in power loads, the number and density of electronic components integrated inside relay protection cabinets have also increased, which has put higher requirements on the heat dissipation performance of relay protection cabinets.

[0004] Currently, commonly used substation relay protection cabinets often feature a compact internal structure. This compact design leads to poor heat dissipation. Electronic components generate significant heat during operation. If this heat cannot be dissipated promptly and effectively, the cabinet's internal temperature will rise, affecting the performance and lifespan of the components and potentially causing failures, jeopardizing the safe and stable operation of the power system.

[0005] In view of the above problems, a substation relay protection cabinet is now designed. Utility Model Content

[0006] An embodiment of the present application provides a substation relay protection cabinet to solve the problem that the substation relay protection cabinet commonly used in the related art is often designed with a relatively compact internal structure, resulting in poor heat dissipation effect of the internal electronic components.

[0007] In a first aspect, a substation relay protection cabinet is provided, comprising:

[0008] a cabinet body having a cavity therein;

[0009] A partition is provided in the middle of the cavity inside the cabinet, and the partition separates the cavity to form two installation chambers arranged front to back;

[0010] Two sets of mounting racks, which are respectively arranged inside the mounting chamber and used for mounting various electronic components;

[0011] There is an air cavity inside the partition, and several ventilation holes are opened on both sides of the partition.

[0012] Two groups of air supply components are arranged on the cabinet body. The air supply components are used to send external air into the air cavity, spray it out through the ventilation holes and air-cool the two installation chambers respectively.

[0013] In some embodiments, both sides of the cabinet cavity are open, a sealed door is hinged at the opening of the cavity, and a plurality of exhaust holes opening downward are provided on the cabinet, and the exhaust holes are respectively connected to the two installation chambers.

[0014] In some embodiments, the air supply assembly includes a fan disposed on a cabinet, the fan outlet pipe is connected to the air cavity of the partition, the fan inlet pipe is connected to a transfer pipe, and a filter element is disposed inside the transfer pipe.

[0015] In some embodiments, the mounting frame includes two support frames that are relatively slidably arranged inside the mounting chamber, and a plurality of mounting plates are slidably arranged on two adjacent support frames, and the mounting plates are fixed to the support frames by bolts.

[0016] In some embodiments, the support frame includes a vertical rod arranged in the installation chamber, two sliding blocks are arranged opposite to each other on the vertical rod, and the vertical rod is L-shaped;

[0017] A plurality of slideways are provided on opposite sides of the cabinet chamber, and the sliders are arranged in the corresponding slideways and slidably cooperate with the slideways.

[0018] In some embodiments, a top cover is provided above the cabinet.

[0019] An embodiment of the present application provides a substation relay protection cabinet, which directly delivers external cold air into the air cavity through an air supply component and sprays it toward electronic components, thereby achieving active air cooling and heat dissipation of the electronic components.

[0020] Furthermore, the ventilation holes are evenly distributed on both sides of the partition, and the air supply assembly can provide a stable airflow, thereby ensuring that the electronic components in the two installation chambers can be evenly and effectively cooled, thus avoiding the occurrence of local overheating.

[0021] The design of partitions, air cavities, and ventilation holes cleverly utilizes the cabinet's internal space without significantly increasing its overall size. Furthermore, the mounting bracket allows users to adjust the layout and quantity of electronic components according to actual needs, enhancing the equipment's flexibility and scalability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0024] Figure 2 A three-dimensional schematic diagram of the connection structure between the mounting frame and the partition provided in an embodiment of the present application;

[0025] Figure 3 This is a cross-sectional view of the three-dimensional structure of the partition provided in an embodiment of the present application.

[0026] In the figure: 1. Cabinet; 2. Partition; 3. Installation chamber; 4. Installation frame; 5. Air cavity; 6. Ventilation hole; 7. Air supply assembly; 71. Fan; 72. Transfer pipe; 8. Exhaust hole; 9. Slide; 10. Top cover; 41. Support frame; 411. Vertical rod; 412. Slider; 42. Installation plate. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] An embodiment of the present application provides a substation relay protection cabinet, which can solve the problem that the substation relay protection cabinet commonly used in the related art is often designed with a relatively compact internal structure, resulting in poor heat dissipation effect of the internal electronic components.

[0029] See also Figure 1-Figure 3 A substation relay protection cabinet includes: a cabinet body 1, a partition 2, two groups of mounting frames 4 and two groups of air supply components 7; the cabinet body 1 has a cavity inside; the partition 2 is arranged in the middle of the cavity inside the cabinet body 1, and the partition 2 divides the cavity to form two mounting chambers 3 arranged front and back; two groups of mounting frames 4 are respectively arranged inside the mounting chamber 3 and are used to install various electronic components; the partition 2 has an air cavity 5 inside, and a number of ventilation holes 6 are opened on both sides of the partition 2. Two groups of air supply components 7 are arranged on the cabinet body 1, and the air supply components 7 are used to send external air into the air cavity 5, spray it out through the ventilation holes 6 and cool the two mounting chambers 3 respectively.

[0030] The interior of the cabinet 1 is divided into two independent installation chambers 3 at the front and rear by a partition 2. This design not only realizes the partition management of electronic components, but also facilitates the layout of the heat dissipation system.

[0031] The interior of the partition 2 houses an air cavity 5, the core of the heat dissipation system. This cavity 5 connects to the mounting chamber 3 via ventilation holes 6 on either side of the partition, forming an airflow path. Two air supply assemblies 7, mounted on the cabinet 1, draw in cool air from outside and deliver it to the cavity 5. As the pressure within the cavity increases, the cool air is evenly ejected through the ventilation holes 6, directly onto the electronic components within the mounting chamber 3.

[0032] After the ejected cold air exchanges heat with the electronic components, it heats up and becomes hot air. Because hot air has a lower density, it naturally rises and flows toward the top of the cabinet. Simultaneously, external cold air is continuously replenished by the air supply assembly 7 into the air cavity 5, forming a continuous airflow cycle.

[0033] The air supply assembly 7 delivers external cold air directly into the air cavity 5 and sprays it toward the electronic components, achieving active air cooling and heat dissipation for the electronic components. Compared with traditional natural heat dissipation methods, this design significantly improves heat dissipation efficiency and reduces the temperature inside the cabinet.

[0034] The ventilation holes 6 are evenly distributed on both sides of the partition 2, and the air supply assembly 7 can provide a stable airflow, thereby ensuring that the electronic components in the two installation chambers 3 can be evenly and effectively cooled, avoiding the occurrence of local overheating.

[0035] The design of the partitions, air cavities, and ventilation holes cleverly utilizes the cabinet's internal space without significantly increasing the cabinet's overall size. Furthermore, the design of the mounting rack 4 allows the user to adjust the layout and quantity of electronic components according to actual needs, increasing the flexibility and scalability of the equipment.

[0036] Good heat dissipation performance helps keep electronic components operating within the normal operating temperature range, reducing the risk of performance degradation or failure due to overheating, thereby improving the stability and reliability of the entire relay protection system.

[0037] Specifically, the cabinet 1 in this embodiment has openings on both sides of the cavity, with sealed doors hinged at the openings of the cavity. The cabinet 1 is provided with a plurality of downwardly facing exhaust holes 8, which are respectively connected to the two installation chambers 3. The exhaust holes 8 are located above the side walls of the cabinet 1.

[0038] First, the cavity of cabinet 1 is designed with openings on both sides, and sealed doors are hinged at these openings. This facilitates maintenance and inspection of the interior of the relay protection cabinet. When installing, replacing, or inspecting electronic components, users only need to open the corresponding sealed door without disassembling the entire cabinet. Furthermore, the presence of the sealed doors ensures the cabinet is sealed when closed, preventing external impurities such as dust and moisture from entering the cabinet and damaging the electronic components.

[0039] Several downward-facing exhaust holes 8 are provided above the upper sidewall of the cabinet body 1, and these exhaust holes 8 are connected to the two mounting chambers 3. When the air supply assembly delivers cold air into the air cavity of the partition 2 and ejects it through the vents 6 to cool the electronic components, the heated air naturally rises and flows toward the exhaust holes 8. Because the exhaust holes open downward, they effectively prevent external impurities such as dust and rain from entering the cabinet through the holes. Furthermore, the downward-facing design facilitates the exhaust of hot air and the replenishment of cold air, further enhancing the heat dissipation effect.

[0040] In one embodiment, the air supply assembly 7 includes a fan 71 arranged on the cabinet 1, the air outlet pipe of the fan 71 is connected to the air cavity 5 of the partition 2, the air inlet pipe of the fan 71 is connected to a transfer pipe 72, and a filter element is arranged inside the transfer pipe 72.

[0041] When the blower 71 starts working, it draws in external air through the air inlet pipe. This air first passes through the filter core inside the transfer pipe 72, which can effectively remove impurities such as dust and particulate matter in the air to ensure that the air entering the air cavity 5 is clean.

[0042] The filtered cold air is then delivered to the air cavity 5 inside the partition 2 through the air outlet pipe of the fan 71. As the gas pressure in the air cavity increases, the cold air is evenly ejected through the ventilation holes 6 on both sides of the partition and blows directly onto the electronic components in the installation chamber 3.

[0043] The ejected cold air exchanges heat with the electronic components and becomes hot air, which rises naturally or is discharged outside the cabinet through the exhaust holes 8 on the cabinet body 1. At the same time, the fan 71 continues to work, continuously sucking in external cold air and sending it into the air cavity 5, forming a continuous airflow cycle.

[0044] In another embodiment, when the device is placed indoors, the air supply assembly 7 includes a filter box and a transfer pipe connected to each other, the other end of the transfer pipe is connected to the delivery pipe of the external ventilation system, the filter box is connected to the air cavity 5 of the partition 2 through the pipe, and a plurality of filter screens are arranged inside the filter box.

[0045] When the substation relay protection cabinet is placed indoors, the air supply assembly 7 includes a filter box and a transfer pipe that are interconnected. One end of the transfer pipe is connected to the filter box, and the other end is connected to the delivery duct of the external ventilation system. In this way, the external ventilation system can provide a continuous source of air for the relay protection cabinet. The filter box is connected to the air cavity 5 inside the partition 2 through a pipe on the other side, ensuring that filtered air can enter the air cavity. Several filter screens are installed inside the filter box. These filter screens can effectively remove impurities such as dust and particulate matter from the air, ensuring the quality of the air entering the air cavity.

[0046] In this way, it can be efficiently integrated with the existing indoor ventilation system, using existing resources to provide a clean cold air source for the relay protection cabinet, reducing system complexity and cost.

[0047] The air is filtered layer by layer through several filters inside the filter box, which can effectively remove dust, particulate matter and other impurities in the air, improve the quality of the air entering the air cavity, and thus protect electronic components from pollution and damage.

[0048] It should be noted that the mounting frame 4 includes two support frames 41 relatively slidably arranged inside the mounting chamber 3 , and a plurality of mounting plates 42 are slidably arranged on two adjacent support frames 41 , and the mounting plates 42 are fixed to the support frames 41 by bolts.

[0049] Mounting frame 4 consists of two support frames 41 that slide relative to each other within mounting chamber 3. The positions of support frames 41 within mounting chamber 3 can be adjusted as needed, flexibly accommodating electronic components of varying sizes and quantities. Furthermore, several mounting plates 42 are slidably positioned between adjacent support frames 41. These plates 42 can be adjusted along the support frames 41 to precisely accommodate the mounting requirements of electronic components.

[0050] Specifically, the support frames 41 are the main structure of the mounting frame 4, and are designed to be relatively slidably mounted inside the mounting chamber 3. This sliding design allows the distance between the support frames 41 to be adjusted as needed to accommodate electronic components of different sizes and layouts.

[0051] Mounting plates 42 are the direct carrier for mounting electronic components. They are designed to slide between two adjacent support frames 41, allowing users to adjust the mounting plates 42 to the appropriate position based on the specific size and installation requirements of the electronic components. Mounting plates 42 are also pre-set with screw holes for securing them to the support frames 41 with bolts, ensuring the stability and safety of the electronic components during installation.

[0052] After the mounting plate 42 is adjusted to a suitable position, the user can use bolts to firmly fix them to the support frame 41. This fixing method is simple and reliable, and can ensure the stable operation of the electronic components after installation.

[0053] The design of the mounting frame 4 allows the user to flexibly adjust the position and number of the support frame 41 and the mounting plate 42 according to actual needs, thereby easily adapting to electronic components of different sizes and quantities.

[0054] The sliding design of the mounting plate 42 allows the user to make precise adjustments according to the specific size and installation requirements of the electronic components, thereby ensuring the stability and accuracy of the electronic components during installation.

[0055] As a preferred embodiment, the support frame 41 includes a vertical rod 411 arranged in the installation chamber 3, and two sliders 412 are arranged on the vertical rod 411 in an L-shape. A plurality of slideways 9 are provided on opposite sides of the chamber of the cabinet 1, and the sliders 412 are arranged in the corresponding slideways 9 and slide in cooperation with the slideways 9. The two ends of the vertical rod 411 are in contact with the upper and lower sides of the installation chamber 3 respectively. Bolt holes are provided on the four corners of the mounting plate 42, and a plurality of bolt holes are provided on the vertical rod 411.

[0056] The vertical rod 411 is designed to be L-shaped, which not only increases its stability but also enables it to better adapt to the structure of the installation chamber 3. The two ends of the L-shaped vertical rod 411 are respectively in contact with the upper and lower sides of the installation chamber 3, forming a stable support base.

[0057] The function of the slider 412 is to enable the vertical rod 411 to slide in the slideway 9 of the cabinet 1, thereby adjusting the position of the support frame 41 in the installation chamber 3. The slideway 9 cooperates with the slider 412 to allow the support frame 41 to slide and adjust in the horizontal direction.

[0058] Mounting plate 42 has bolt holes at its four corners, which align with the bolt holes on vertical rods 411, allowing mounting plate 42 to be secured to support frame 41 via bolts. The multiple bolt holes on vertical rods 411 provide multiple fixing position options, allowing users to precisely secure mounting plate 42 to the desired location based on the size of the electronic components and installation requirements.

[0059] In one embodiment, a top cover 10 is provided above the cabinet 1 .

[0060] The top cover 10 is installed above the cabinet 1 and serves as a closed part of the entire cabinet.

[0061] The presence of the top cover 10 significantly enhances the protective performance of the substation relay protection cabinet. It blocks external contaminants such as dust, moisture, and insects from entering the cabinet, thereby protecting the internal electronic components from contamination and damage. This is crucial for maintaining the cleanliness and stable operation of the electronic components.

[0062] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0063] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0064] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A substation relay protection cabinet, characterized in that: include: A cabinet (1) having a cavity therein; A partition (2) is arranged in the middle of the internal cavity of the cabinet (1), and the partition (2) divides the cavity to form two installation chambers (3) arranged in a front-to-back manner; Two sets of mounting racks (4), which are respectively arranged inside the mounting chamber (3) and used for mounting various electronic components; The partition (2) has an air cavity (5) inside, and a plurality of ventilation holes (6) are opened on both sides of the partition (2). Two groups of air supply components (7) are arranged on the cabinet (1). The air supply components (7) are used to send external air into the air cavity (5), spray it out through the ventilation holes (6) and respectively cool the two installation chambers (3).

2. A transformer substation relay protection cabinet according to claim 1, characterized in that: Both sides of the cavity of the cabinet (1) are open, and a sealed door is hinged at the opening of the cavity. The cabinet (1) is provided with a plurality of exhaust holes (8) with downward openings, and the exhaust holes (8) are respectively communicated with the two installation chambers (3).

3. The substation relay protection cabinet according to claim 1, characterized in that: The air supply assembly (7) comprises a fan (71) arranged on the cabinet (1); the air outlet pipe of the fan (71) is in communication with the air cavity (5) of the partition (2); the air inlet pipe of the fan (71) is connected to a transfer pipe (72); and a filter element is arranged inside the transfer pipe (72).

4. The transformer substation relay protection cabinet according to claim 1, characterized in that: The mounting frame (4) comprises two support frames (41) relatively slidably arranged inside the mounting chamber (3), and a plurality of mounting plates (42) are slidably arranged on two adjacent support frames (41), and the mounting plates (42) are fixed to the support frames (41) by bolts.

5. A transformer substation relay protection cabinet according to claim 4, characterized in that: The support frame (41) comprises a vertical rod (411) arranged in the installation chamber (3), two sliding blocks (412) are arranged opposite to each other on the vertical rod (411), and the vertical rod (411) is L-shaped; A plurality of slideways (9) are provided on opposite sides of the cabinet (1) chamber, and the sliders (412) are arranged in corresponding slideways (9) and slidably engage with the slideways (9).

6. The transformer substation relay protection cabinet according to claim 1, characterized in that: A top cover (10) is provided above the cabinet (1).

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