Power distribution cabinet with relay protection assembly

Abstract

This utility model relates to the field of power distribution cabinet technology and discloses a power distribution cabinet with a relay protection component. It includes a cabinet body, a cabinet door on one side wall, a fixed base plate on the side wall, a relay body inside the cabinet, a protection component inside the cabinet, and a mounting mechanism inside the cabinet. The protection component includes a dust cover and a fan. A mounting bracket is fixedly connected to the side wall of the fixed base plate, the side wall of the mounting bracket is slidably connected to the inner wall of the cabinet, and a mounting plate is fixedly connected to the side wall of the mounting bracket. The dust cover is fitted over the relay body, and a retaining plate is fixedly connected to the side wall of the dust cover. A retaining groove is provided inside the mounting bracket. In this utility model, the fan reduces the temperature of the relay body, and the dust cover prevents blown dust and debris from entering, protecting the relay body, achieving dustproof and heat dissipation effects, extending the service life of the relay body, and ensuring stable equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of power distribution cabinet technology, and in particular to a power distribution cabinet with relay protection components. Background Technology

[0002] Distribution cabinets, as core electrical devices in power systems used for distributing electrical energy, controlling circuits, and protecting equipment, are widely used in industrial production, commercial buildings, and residential homes. Relays, as crucial components within distribution cabinets, control the switching of circuits to achieve automated control, overload protection, and signal transmission of electrical equipment. Their stability and reliability directly impact the normal operation of the distribution cabinet and even the entire power system. However, in practical use, relays are susceptible to dust, moisture, electromagnetic interference, and mechanical vibration, leading to contact oxidation, malfunctions, and even damage. To address these issues, distribution cabinets with relay protection components have been developed and manufactured. These cabinets integrate dustproof and moisture-proof technologies to create a stable working environment for the relays, thereby improving the safety and lifespan of the distribution cabinet.

[0003] Currently, there are various types of distribution cabinets with relay protection components on the market. Some distribution cabinets adopt a sealed cabinet structure, equipped with sealing strips and dustproof screens to prevent dust and moisture intrusion, providing a clean and dry operating environment for the relays. However, because of the strict sealing, the internal temperature of this equipment can cause short circuits and other faults in the relays. The lack of protection for the relays themselves prevents their long-term use. Therefore, it is necessary to reduce the internal temperature of the cabinet to achieve both dust prevention and heat dissipation, thus effectively protecting the relays and ensuring stable equipment operation. This paper proposes a distribution cabinet with relay protection components to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a power distribution cabinet with relay protection components, which aims to improve the problems in the prior art where the lack of protection for the relay body leads to dust accumulation inside the cabinet and excessively high operating temperature, causing short circuits and poor contact in the relays.

[0005] To achieve the above objectives, the present invention provides a power distribution cabinet with a relay protection component, comprising a cabinet body, a cabinet door on the side wall of the cabinet body, a fixed base plate on the side wall of the cabinet body, a relay body inside the cabinet body, a protection component inside the cabinet body, and an installation mechanism inside the cabinet body; the protection component includes a dust cover and a fan, a mounting bracket is fixedly connected to the side wall of the fixed base plate, the side wall of the mounting bracket is slidably connected to the inner wall of the cabinet body, a mounting plate is fixedly connected to the side wall of the mounting bracket, the dust cover is fitted over the relay body, a retaining plate is fixedly connected to the side wall of the dust cover, a retaining groove is opened inside the mounting bracket, the side wall of the retaining plate is slidably connected to the groove, a fixing block is fixedly connected to the inner wall of the mounting bracket on the opposite side, and the side wall of the fan is fixedly connected to the side wall of the fixing block.

[0006] Optionally, the installation mechanism includes a fixing pin, a pin cylinder fixedly connected inside the cabinet, a fixing plate fixedly connected inside the pin cylinder, a side wall of the fixing pin slidably connected inside the fixing plate, a sliding plate fixedly connected to the side wall of the fixing pin, a side wall of the sliding plate slidably connected to the inner wall of the pin cylinder, a spring provided inside the pin cylinder, one end of the spring fixedly connected to the side wall of the sliding plate, the other end of the spring fixedly connected to the inner wall of the pin cylinder, a baffle fixedly connected to the side wall of the fixing pin, a pull ring fixedly connected inside the baffle, a pin opening provided inside the cabinet, and a side wall of the fixing pin slidably connected to the pin opening.

[0007] Optionally, the mounting bracket has a ventilation opening inside, the cabinet has a ventilation hole inside, and a dust cover is fixedly connected to the side wall of the cabinet, with the dust cover positioned above the ventilation hole.

[0008] Optionally, the fixed base plate is internally threaded with fixing bolts, the fixed base plate is fixedly connected to a reinforcing seat on its side wall, and the cabinet is slidably connected to the top of the reinforcing seat.

[0009] Optionally, the side wall of the relay body is slidably connected to the side wall of the mounting plate, and the mounting plate is distributed in a uniform array.

[0010] Optionally, the dust cover sidewall is provided with a cable passage, and the dust cover sidewall is fitted with the mounting bracket sidewall.

[0011] Optionally, the card plate is made of plastic, and card plates are provided on both sides of the dust cover.

[0012] The above-mentioned technical solutions in the power distribution cabinet with relay protection components provided in this embodiment of the utility model have at least one of the following technical effects:

[0013] 1. In this utility model, the fan promotes air circulation and reduces the temperature of the relay body, while the dust cover effectively blocks dust and debris from entering and also blocks dust brought by the fan, protecting the relay body. The two work together to prevent dust and dissipate heat, extend the service life of the relay body, ensure stable operation of the equipment, and solve the problems of dust accumulation inside traditional distribution cabinets, poor contact after the relay body is covered by dust for a long time due to the lack of protective devices, and short circuits and poor contact due to excessive operating temperature. This improves the stability of the equipment.

[0014] 2. In this utility model, the cabinet body is separated from the fixed base plate, and then the mounting bracket and fixing pins are used to achieve quick positioning and fixing between components. This also facilitates the subsequent inspection and replacement of protective components, improves the convenience of installation and maintenance, and solves the problem that it is inconvenient to install internal equipment in traditional power distribution cabinets, which require installation inside the cabinet and subsequent replacement of parts and maintenance are inconvenient. This improves the convenience of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the power distribution cabinet with relay protection components proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the mounting frame for the distribution cabinet with relay protection components proposed in this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the installation mechanism of the distribution cabinet with relay protection components proposed in this utility model;

[0020] Figure 5 A schematic diagram of the structure of the fan in the distribution cabinet with relay protection components proposed in this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0022] The following are the labeling elements in the figure:

[0023] 1. Cabinet body; 2. Cabinet door; 3. Fixing bolts; 4. Relay body; 5. Fixing base plate; 6. Ventilation hole; 7. Mounting plate; 8. Dust cover; 9. Cable entry port; 10. Ventilation opening; 11. Fixing block; 12. Mounting bracket; 13. Slot; 14. Plate; 15. Reinforcing base; 16. Pin cylinder; 17. Pin socket; 18. Fan; 19. Fixing pin; 20. Fixing plate; 21. Slide plate; 22. Spring; 23. Baffle; 24. Pull ring; 25. Dust cover. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0028] Reference Figures 1-3 and Figure 5This utility model provides an embodiment of a distribution cabinet with a relay protection component, comprising a cabinet body 1, a cabinet door 2 on the side wall of the cabinet body 1, a fixed base plate 5 on the side wall of the cabinet body 1, a relay body 4 inside the cabinet body 1, a protection component inside the cabinet body 1, and an installation mechanism inside the cabinet body 1; the protection component includes a dust cover 8 and a fan 18, the dust cover 8 provides protection for the relay body 4, the fan 18 dissipates heat from the cabinet interior, a mounting bracket 12 is fixedly connected to the side wall of the fixed base plate 5, the side wall of the mounting bracket 12 is slidably connected to the inner wall of the cabinet body 1, dividing the cabinet body 1 and the mounting bracket 12 into two parts, facilitating quick installation, a mounting plate 7 is fixedly connected to the side wall of the mounting bracket 12, and the dust cover 8 is fitted over the outside of the relay body 4 to prevent dust accumulation. The dust cover 8 covers the relay body 4, forming a physical barrier to isolate external dust, moisture, debris, and other contaminants, preventing them from affecting the normal operation of the relay body 4 and avoiding faults such as short circuits and poor contact. A retaining plate 14 is fixedly connected to the side wall of the dust cover 8. A retaining groove 13 is provided inside the mounting bracket 12. The side wall of the retaining plate 14 is slidably connected to the retaining groove 13. The retaining groove 13 cooperates with the retaining plate 14, providing space for sliding and engaging, enabling quick installation and removal of the dust cover 8. This facilitates inspection, maintenance, and replacement of the relay body 4, improving operational efficiency. A fixing block 11 is fixedly connected to the inner wall of the mounting bracket 12 on the opposite side. The fixing block 11 provides a stable installation position for the fan 18, ensuring that the fan 18 will not shake or shift during operation. Fan 18 operates stably, effectively promoting air circulation and achieving good heat dissipation. The sidewall of fan 18 is fixedly connected to the sidewall of fixing block 11, ensuring a stable airflow direction during fan operation. This efficiently removes heat generated by relay body 4, preventing overheating from affecting relay body 4's performance. Ventilation openings 10 are provided inside the mounting bracket 12, offering a channel for air circulation. Together with fan 18, these openings create convection within the mounting bracket 12, accelerating the removal of hot air around relay body 4. Ventilation holes 6 are provided inside the cabinet 1, cooperating with the ventilation openings 10 of the mounting bracket 12 to create an airflow path between the cabinet 1 and the outside, ensuring that cooled air is promptly exhausted from the cabinet 1, thus guaranteeing the overall cooling system's performance. To ensure effectiveness and prevent heat buildup, a dust cover 25 is fixedly connected to the side wall of cabinet 1. The dust cover 25 is positioned above the ventilation holes 6, preventing dust and debris from entering the cabinet 1 through the ventilation holes 6. This ensures ventilation and heat dissipation while preventing external pollutants from affecting the internal equipment, thus providing a dual function of dust prevention and ventilation. The side wall of the relay body 4 is slidably connected to the side wall of the mounting plate 7, facilitating the installation and removal of the relay body 4, and making it easy to debug, maintain, and replace it. The mounting plate 7 is evenly arrayed, ensuring the relay bodies 4 are neatly arranged, facilitating wiring and management, and also promoting airflow and heat dissipation between the relay bodies 4. A wire passage 9 is provided on the side wall of the dust cover 8, providing a passage for the connection wires of the relay body 4 to pass through.To facilitate connection between the relay body 4 and external equipment, the side wall of the dust cover 8 fits snugly against the side wall of the mounting bracket 12. The clamping plate 14 is made of plastic, which has a certain degree of elasticity and can deform slightly during installation to facilitate insertion into the clamping slot 13. Clamping plates 14 are provided on both sides of the dust cover 8, ensuring even force distribution and greater stability after installation.

[0029] Reference Figure 1 and Figures 4-6 The installation mechanism includes a fixing pin 19. A pin cylinder 16 is fixedly connected inside the cabinet 1. The pin cylinder 16 provides installation space and movement guidance for the fixing pin 19, constraining its movement trajectory to maintain stability during extension and retraction, preventing the fixing pin 19 from shifting, and ensuring the accuracy of installation and disassembly operations. A fixing plate 20 is fixedly connected inside the pin cylinder 16. The sidewall of the fixing pin 19 is slidably connected inside the fixing plate 20. The fixing plate 20 provides support and limits for the sliding of the fixing pin 19, further regulating its movement path. To ensure that the fixing pin 19 does not wobble radially during extension and retraction, thus enhancing its operational stability, a sliding plate 21 is fixedly connected to the side wall of the fixing pin 19. The side wall of the sliding plate 21 is slidably connected to the inner wall of the pin cylinder 16. The sliding plate 21 is connected to the fixing pin 19, and when sliding within the pin cylinder 16, it increases the contact area between the fixing pin 19 and the inner wall of the pin cylinder 16, making the sliding of the fixing pin 19 smoother. At the same time, it provides a limiting effect for the fixing pin 19, preventing it from disengaging from the pin cylinder 16. A spring 22 is installed inside the pin cylinder 16, with one end of the spring 22 fixedly connected to... The spring 22 is attached to the side wall of the slide plate 21, and the other end of the spring 22 is fixedly connected to the inner wall of the pin cylinder 16. The spring 22 provides elastic restoring force for the fixing pin 19. When the fixing pin 19 is pulled out for installation or removal, the spring 22 can automatically reset it. A baffle 23 is fixedly connected to the side wall of the fixing pin 19, and a pull ring 24 is fixedly connected inside the baffle 23. The baffle 23 limits the pull-out length of the fixing pin 19 to prevent the fixing pin 19 from completely detaching from the pin cylinder 16, and at the same time provides an installation base for the pull ring 24, making it convenient for operators to move the fixing pin 19. Pull operation, cabinet 1 has a pin hole 17 inside, the side wall of fixing pin 19 is slidably connected to the inside of pin hole 17 to complete the installation and fixing operation. At the same time, it can be easily pulled out during disassembly, ensuring that the connection and separation operation of the installation mechanism is simple and easy. The fixing base plate 5 has a fixing bolt 3 threaded inside, so that the entire equipment can be fixed to the wall or mounting platform. The side wall of fixing base plate 5 is fixedly connected to a reinforcing seat 15, and cabinet 1 is slidably connected to the top of reinforcing seat 15, which can better fix cabinet 1 to mounting frame 12 and prevent it from shaking.

[0030] Working principle: First, fix the base plate 5 in a suitable position using fixing bolts 3. Then, install the relay body 4 on the mounting plate 7. After installation, align the retaining plate 14 on the dust cover 8 with the retaining groove 13 and push it in. Because the retaining plate 14 is made of plastic, it will deform to achieve limiting and fixing within the retaining groove 13. The connecting wire on the relay body 4 can extend through the wire outlet 9. After all installations are complete, pull the pull ring 24. The pull ring 24 moves the baffle 23, which in turn moves the fixing pin 19. The fixing pin 19 then moves the sliding plate 21. When the sliding plate 21 moves, it compresses the spring 22, causing the fixing pin 19 to retract into the pin cylinder 16. At this point, align the inner wall of the cabinet 1 with the base plate 5 and the bottom with the top of the reinforcing base 15, and then push it in until it is flush with the base plate 5. Release the pull ring 24, the force on the spring 22 is released, push the slide plate 21 back, the slide plate 21 drives the fixing pin 19 to extend out of the pin cylinder 16, at the same time the fixing plate 20 will restrict the slide plate 21 to prevent the fixing pin 19 from disengaging from the pin cylinder 16, the extended fixing pin 19 will enter the pin hole 17, so that the cabinet 1 and the mounting bracket 12 are fixed. At this time, close the cabinet door 2 to complete the assembly. In hot weather, the fan 18 on the fixing block 11 can be turned on. The fan 18 blows cold air through the vent 10 to cool the relay body 4. The hot air will be discharged through the vent 6. At the same time, the dust cover 25 will prevent dust from entering the cabinet 1, so that the cabinet 1 achieves an overall cooling effect. When it is necessary to repair or replace the relay body 4, the two ends of the dust cover 8 can be pressed down to deform the clamping plate 14 and remove the dust cover 8 from the mounting bracket 12.

[0031] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A distribution cabinet with relay protection components, comprising a cabinet body (1), characterized in that: The cabinet (1) has a cabinet door (2) on its side wall, a fixed base plate (5) on its side wall, a relay body (4) inside the cabinet (1), a protective component inside the cabinet (1), and an installation mechanism inside the cabinet (1). The protective components include a dust cover (8) and a fan (18). A mounting bracket (12) is fixedly connected to the side wall of the fixed base plate (5). The side wall of the mounting bracket (12) is slidably connected to the inner wall of the cabinet (1). A mounting plate (7) is fixedly connected to the side wall of the mounting bracket (12). The dust cover (8) is sleeved on the outside of the relay body (4). A card plate (14) is fixedly connected to the side wall of the dust cover (8). A card slot (13) is opened inside the mounting bracket (12). The side wall of the card plate (14) is slidably connected to the inside of the card slot (13). A fixing block (11) is fixedly connected to the inner wall of the mounting bracket (12) on the opposite side. The side wall of the fan (18) is fixedly connected to the side wall of the fixing block (11).

2. The distribution cabinet with relay protection components according to claim 1, characterized in that: The installation mechanism includes a fixing pin (19), a pin cylinder (16) is fixedly connected inside the cabinet (1), a fixing plate (20) is fixedly connected inside the pin cylinder (16), the side wall of the fixing pin (19) is slidably connected to the inside of the fixing plate (20), a sliding plate (21) is fixedly connected to the side wall of the fixing pin (19), the side wall of the sliding plate (21) is slidably connected to the inner wall of the pin cylinder (16), a spring (22) is provided inside the pin cylinder (16), one end of the spring (22) is fixedly connected to the side wall of the sliding plate (21), the other end of the spring (22) is fixedly connected to the inner wall of the pin cylinder (16), a baffle (23) is fixedly connected to the side wall of the fixing pin (19), a pull ring (24) is fixedly connected inside the baffle (23), a pin hole (17) is opened inside the cabinet (1), and the side wall of the fixing pin (19) is slidably connected to the inside of the pin hole (17).

3. The distribution cabinet with relay protection components according to claim 1, characterized in that: The mounting bracket (12) has a ventilation opening (10) inside, the cabinet (1) has a ventilation hole (6) inside, and a dust cover (25) is fixedly connected to the side wall of the cabinet (1). The dust cover (25) is located on the upper side of the ventilation hole (6).

4. The distribution cabinet with relay protection components according to claim 1, characterized in that: The fixed base plate (5) is internally threaded with a fixing bolt (3), and the side wall of the fixed base plate (5) is fixedly connected with a reinforcing seat (15). The cabinet (1) is slidably connected to the top of the reinforcing seat (15).

5. The distribution cabinet with relay protection components according to claim 1, characterized in that: The relay body (4) is slidably connected to the side wall of the mounting plate (7), which is uniformly arrayed.

6. The distribution cabinet with relay protection components according to claim 1, characterized in that: The dust cover (8) has a cable passage (9) on its side wall, and the side wall of the dust cover (8) is in contact with the side wall of the mounting bracket (12).

7. The distribution cabinet with relay protection components according to claim 1, characterized in that: The card plate (14) is made of plastic, and the dust cover (8) has card plates (14) on both sides.

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