Air inlet structure of ventilation system of electrical control panel cabinet

Abstract

This utility model discloses an air inlet structure for a ventilation system of an electrical control panel cabinet, within the field of electrical control panel technology. It includes an electrical control panel, with air inlet frames movably mounted on both sides. A filter plate is installed on the inner wall of each air inlet frame, and the filter plate is connected to the air inlet frame via a snap-fit ​​assembly. The snap-fit ​​assembly can limit the filter plate to the air inlet frame. By incorporating the air inlet frame, limiting assembly, and snap-fit ​​assembly, this utility model allows for easy removal and cleaning when the filter plate and air inlet frame accumulate dust. Workers can open the electrical control panel's door, remove the filter from the inside, and then release the limiting assembly to remove the air inlet frame from the electrical control panel. The snap-fit ​​assembly can also be used to remove the filter plate from the air inlet frame, further facilitating cleaning or filter plate replacement. This convenient and quick process effectively avoids brute force removal, ensuring that the filter plate will not loosen after reinstallation and affect the installation effect.

Description

Technical Field

[0001] This utility model relates to the field of electrical control panel technology, and in particular to an air inlet structure for an electrical control panel ventilation system. Background Technology

[0002] An electrical control panel, also known as a control cabinet or distribution panel, is a core device in industrial automation and power systems used for centralized control, protection, and distribution of electrical energy and equipment. It executes preset logic through a programmable logic controller or relay system, remotely controls the start and stop of equipment, and displays the operating status of equipment using indicator lights and instruments. To ensure good heat dissipation, an internal ventilation system is usually installed on the electrical control panel, and the air inlet frame of the ventilation system is equipped with a filter plate to prevent dust from entering.

[0003] However, existing technologies have some problems: although filter plates are installed on the air inlet frame to block dust from entering, dust will still accumulate on the filter plates and inside the air inlet frame after long-term use, requiring staff to disassemble the air inlet frame for cleaning. However, existing air inlet frames are usually snap-fitted onto the electrical control panel, and can only be removed by force with tools. Over time, this can easily loosen and affect the installation effect. Therefore, we propose an air inlet structure for the ventilation system of the electrical control panel cabinet. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an air inlet structure for an electrical control panel ventilation system. Through blocks, snap-fit ​​components, and limiting components, the air inlet frame and filter plate can be easily removed, making the operation simple.

[0005] The purpose of this utility model is achieved as follows: an air inlet structure for an electrical control panel ventilation system includes an electrical control panel. Air inlet frames are movably installed on both sides of the electrical control panel. A filter plate is provided on the inner wall of each air inlet frame. The filter plate is connected to the air inlet frame via a snap-fit ​​assembly, which can limit the filter plate to the air inlet frame. A filter screen is movably installed on the side of the air inlet frame away from the filter plate. Square blocks located on both sides of the air inlet frame are fixedly installed on the inner wall of the electrical control panel. Square grooves are formed on the square blocks. The air inlet frame is also connected to the electrical control panel via a limiting assembly. The air inlet frame can be installed on or removed from the electrical control panel via the limiting assembly.

[0006] Optionally, the limiting component includes a crossbar, which is movably inserted into the air inlet frame and one end of the crossbar extends into the square groove. A guide rod is fixedly installed on the inner wall of the air inlet frame, and a sleeve is movably sleeved on the bottom of the outer surface of the guide rod. A square plate is fixedly connected to the sleeve, and an oblique hole is opened on the square plate. A round block located inside the oblique hole is fixedly installed on the crossbar.

[0007] Optionally, a first spring is movably sleeved on the outer surface of the guide rod, and the two ends of the first spring are respectively fixedly connected to the sleeve and the air inlet frame.

[0008] Optionally, the diameter of the circular block is adapted to the width of the oblique hole, and the inner wall of the oblique hole is coated with a lubricating layer.

[0009] Optionally, the snap-fit ​​assembly includes a fixing block, which is fixedly mounted on the filter plate. A circular groove is provided on the inner wall of the air inlet frame. A pin is movably inserted into the fixing block. One end of the pin extends into the circular groove, and the other end of the pin is fixedly connected to a pull handle.

[0010] Optionally, a second spring is movably sleeved on the outer surface of the pin, and the two ends of the second spring are respectively fixedly connected to the fixing block and the pull handle.

[0011] Optionally, a first magnet block is fixedly installed on the air inlet frame, and a second magnet block is fixedly installed on the filter screen, wherein the magnetic poles of the opposite sides of the first magnet block and the second magnet block are opposite.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up an air inlet frame, a limiting component, and a snap-fit ​​component, allows for easy removal and cleaning when a large amount of dust accumulates inside the filter plate and air inlet frame. Workers can open the electrical control panel's door and remove the filter from the inside. The limiting component can then release the restriction on the air inlet frame, allowing it to be removed from the electrical control panel. The snap-fit ​​component can also be used to remove the filter plate from the air inlet frame, further facilitating cleaning or replacement of the filter plate. This convenient and quick process effectively avoids brute force removal, ensuring that the filter plate will not loosen after reinstallation and thus maintain its installation effectiveness. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram provided by this utility model.

[0015] Figure 2 This is a partial structural diagram of the internal structure of the electrical control panel provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the air inlet frame provided by this utility model.

[0017] Figure 4 This is a cross-sectional view of the internal structure of the air inlet frame provided by this utility model.

[0018] Figure 5 This is a schematic diagram of the disassembled air inlet frame, filter plate, and filter screen provided by this utility model.

[0019] In the diagram: 1. Electrical control panel; 2. Air inlet frame; 3. Filter plate; 4. Filter screen; 5. Cube; 6. Square groove; 7. Crossbar; 8. Guide rod; 9. Sleeve; 10. Square plate; 11. Slanted hole; 12. Round block; 13. First spring; 14. Fixing block; 15. Pin; 16. Pull handle; 17. Second spring; 18. Round groove; 19. First magnet block; 20. Second magnet block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 5 As shown in the figure, the embodiment of this utility model provides an air inlet structure for an electrical control panel ventilation system, including an electrical control panel 1. Air inlet frames 2 are movably installed on both sides of the electrical control panel 1. Filter plates 3 are provided on the inner walls of the air inlet frames 2. The filter plates 3 are connected to the air inlet frames 2 by a snap-fit ​​assembly, which can limit the filter plates 3 on the air inlet frames 2. A filter screen 4 is movably installed on the side of the air inlet frames 2 away from the filter plates 3. Square blocks 5 located on both sides of the air inlet frames 2 are fixedly installed on the inner walls of the electrical control panel 1. Square grooves 6 are provided on the square blocks 5. The air inlet frames 2 are also connected to the electrical control panel 1 by a limiting assembly. The air inlet frames 2 can be installed on or removed from the electrical control panel 1 by the limiting assembly.

[0022] When the filter plate 3 and filter screen 4 on the air inlet frame 2 are covered with a lot of electrical dust, affecting normal air intake, the staff can remove the air inlet frame 2 from the electrical control panel 1 through the limiting component, and can also remove the filter plate 3 from the air inlet frame 2 through the snap-fit ​​component, so as to facilitate the cleaning or replacement of the filter plate 3 and filter screen 4. The operation is simple, convenient and quick.

[0023] Furthermore, the limiting component includes a crossbar 7, which is movably inserted into the air inlet frame 2 and one end of the crossbar 7 extends into the square groove 6. A guide rod 8 is fixedly installed on the inner wall of the air inlet frame 2. A sleeve 9 is movably sleeved on the bottom of the outer surface of the guide rod 8. A square plate 10 is fixedly connected to the sleeve 9. An oblique hole 11 is opened on the square plate 10. A round block 12 located inside the oblique hole 11 is fixedly installed on the crossbar 7.

[0024] By pulling the sleeve 9 upward, the square plate 10 moves upward, which causes the inner wall of the inclined hole 11 to press against the outer surface of the round block 12. This causes the two round blocks 12 to move towards the two crossbars 7, which in turn allows the crossbars 7 to be pulled out from the inside of the square groove 6. This releases the restriction on the air inlet frame 2, allowing the air inlet frame 2 to be removed from the electrical control panel 1. This makes it easier for staff to replace or clean the filter plate 3 and filter screen 4.

[0025] Furthermore, a first spring 13 is movably sleeved on the outer surface of the guide rod 8, and the two ends of the first spring 13 are respectively fixedly connected to the sleeve 9 and the air inlet frame 2.

[0026] By setting the first spring 13 to a compressed state, the elastic force of the first spring 13 will cause the sleeve 9 and the square plate 10 to tend to move downward, thereby maintaining the squeezing effect on the round block 12, so that one end of the crossbar 7 can be stably kept inside the square groove 6, thereby ensuring that the air inlet frame 2 is stably installed on the electrical control panel 1.

[0027] Furthermore, the diameter of the circular block 12 is matched with the width of the oblique hole 11, and the inner wall of the oblique hole 11 is coated with a lubricating layer.

[0028] By coating the inner wall of the inclined hole 11 with a lubricating layer, the circular block 12 can slide more smoothly inside the inclined hole 11.

[0029] Furthermore, the snap-fit ​​assembly includes a fixing block 14, which is fixedly installed on the filter plate 3. A circular groove 18 is provided on the inner wall of the air inlet frame 2. A pin 15 is movably inserted into the fixing block 14. One end of the pin 15 extends into the inside of the circular groove 18, and the other end of the pin 15 is fixedly connected to a pull handle 16.

[0030] Pulling the handle 16 causes the pin 15 to be pulled out from the inside of the groove 18, which releases the restriction on the filter plate 3, allowing the filter plate 3 to be removed from the air inlet frame 2, making it easier for staff to replace or clean the filter plate 3.

[0031] Furthermore, a second spring 17 is movably sleeved on the outer surface of the pin 15, and the two ends of the second spring 17 are respectively fixedly connected to the fixing block 14 and the pull handle 16.

[0032] By setting the second spring 17 to a stretched state, the elastic recovery effect of the second spring 17 will keep one end of the pin 15 stably inside the circular groove 18, thereby maintaining the limiting effect on the filter plate 3.

[0033] Furthermore, a first magnet block 19 is fixedly installed on the air inlet frame 2, and a second magnet block 20 is fixedly installed on the filter screen 4. The magnetic poles of the opposite sides of the first magnet block 19 and the second magnet block 20 are opposite.

[0034] The first magnet 19 and the second magnet 20 can be made of strong magnets so that they will not be separated by wind. Through the magnetic attraction between the first magnet 19 and the second magnet 20, the filter 4 can be kept on the air inlet frame 2, and the filter 4 can be easily installed and removed.

[0035] Working principle and usage process of this utility model: When the filter plate 3 and the air inlet frame 2 have accumulated a lot of dust and need to be removed for cleaning, the staff can first open the door of the electrical control panel 1, then remove the filter screen 4, and then pull the sleeve 9 upward. Under the guidance of the guide rod 8, the first spring 13 is compressed, which drives the square plate 10 to move upward, so that the two crossbars 7 can move towards each other, and one end of the crossbar 7 can be pulled out from the square groove 6, thereby releasing the limiting effect on the air inlet frame 2, and the air inlet frame 2 can be removed from the electrical control panel 1. Then, the staff can also pull the pin 15 through the handle 16, so that the pin 15 can be pulled out from the round groove 18, thereby releasing the limiting effect on the filter plate 3, and removing the filter plate 3 from the air inlet frame 2, which makes it easier for the staff to clean the filter plate 3. After cleaning, the air inlet frame 2, filter plate 3 and filter screen 4 can be installed in their original positions.

[0036] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An air inlet structure for a ventilation system of an electrical control panel, comprising an electrical control panel (1), characterized in that: Air inlet frames (2) are movably installed on both sides of the electrical control panel (1). A filter plate (3) is provided on the inner wall of the air inlet frame (2). The filter plate (3) is connected to the air inlet frame (2) by a snap-fit ​​assembly. The snap-fit ​​assembly can limit the filter plate (3) on the air inlet frame (2). A filter screen (4) is movably installed on the side of the air inlet frame (2) away from the filter plate (3). A block (5) located on both sides of the air inlet frame (2) is fixedly installed on the inner wall of the electrical control panel (1). A square groove (6) is opened on the block (5). The air inlet frame (2) is also connected to the electrical control panel (1) by a limiting assembly. The air inlet frame (2) can be installed on the electrical control panel (1) or removed from the electrical control panel (1) by the limiting assembly.

2. An air intake structure for an electrical control panel cabinet ventilation system according to claim 1, wherein: The limiting component includes a crossbar (7), which is movably inserted into the air inlet frame (2) and one end of the crossbar (7) extends into the square groove (6). A guide rod (8) is fixedly installed on the inner wall of the air inlet frame (2). A sleeve (9) is movably sleeved on the bottom of the outer surface of the guide rod (8). A square plate (10) is fixedly connected to the sleeve (9). An oblique hole (11) is opened on the square plate (10). A round block (12) located inside the oblique hole (11) is fixedly installed on the crossbar (7).

3. An air intake structure for an electrical control panel cabinet ventilation system according to claim 2, wherein: The outer surface of the guide rod (8) is movably sleeved with a first spring (13), and the two ends of the first spring (13) are respectively fixedly connected to the sleeve (9) and the air inlet frame (2).

4. An air intake structure for an electrical control panel cabinet ventilation system according to claim 2, wherein: The diameter of the circular block (12) is matched with the width of the oblique hole (11), and the inner wall of the oblique hole (11) is coated with a lubricating layer.

5. An air intake structure for an electrical control panel cabinet ventilation system according to claim 1, wherein: The snap-fit ​​assembly includes a fixing block (14), which is fixedly installed on the filter plate (3). The inner wall of the air inlet frame (2) is provided with a circular groove (18). A pin (15) is movably inserted into the fixing block (14). One end of the pin (15) extends into the circular groove (18), and the other end of the pin (15) is fixedly connected to a pull handle (16).

6. An electrical control panel cabinet ventilation system air inlet structure according to claim 5, wherein: The outer surface of the pin (15) is movably sleeved with a second spring (17), and the two ends of the second spring (17) are respectively fixedly connected to the fixing block (14) and the pull handle (16).

7. An air intake structure for an electrical control panel cabinet ventilation system according to claim 1, wherein: A first magnet block (19) is fixedly installed on the air inlet frame (2), and a second magnet block (20) is fixedly installed on the filter screen (4). The magnetic poles of the opposite sides of the first magnet block (19) and the second magnet block (20) are opposite.

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