Explosion-proof dustproof electric control box

Abstract

The utility model discloses an explosion -proof dust -proof electric cabinet, include: explosion -proof electric cabinet, its front rotation installation has the rotary cabinet door, and the tail end of explosion -proof electric cabinet top and bottom end outer wall all equidistance is provided with a plurality of ventilation cross grooves, and the tail end of both sides outer wall all equidistance is provided with a plurality of ventilation vertical grooves. The utility model discloses through the innovative partition heat dissipation design utilizes the forced convection cooling of rear cavity and the strict four -fold dust -proof explosion -proof design of front cavity, and the core is the installation connecting plate isolation with adjustable transparent protection board compression tight seal, has solved the double challenge of electric control equipment in the existence flammable explosive gas, dust, damp, dusty etc. harsh industrial environment, efficient heat dissipation ensures stable operation, and also must be absolutely isolated external dangerous material into the core cavity guarantee safety, simultaneously, good visibility, the effective protection of key components and convenient maintainability design, further improved the practicability and reliability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical control box technology, and in particular to an explosion-proof and dustproof electrical control box. Background Technology

[0002] In existing technologies, electrical control boxes are electrical devices integrated with low-voltage switchgear and control, measurement, signaling, protection, and regulation components. They are mainly used for the adaptation and control of cold storage and compressor systems, and have been extended to industrial automation, public facilities, and intelligent buildings. Their core functions include power equipment switching control, fault protection, and operation monitoring to ensure system safety and efficiency.

[0003] A search revealed Chinese patent application number 202421451716.9, which discloses an electrical control box for coal mine equipment. Utilizing a door, a fixed box, and a dust-proof mechanism, when data observation is not required, a push spring pushes the dust-proof plate, compressing the sealing strip to close the fixed box and prevent dust from adhering to the transparent plate. When data observation is needed, the dust-proof plate can be moved by pulling a lever, allowing data to be observed through the transparent plate. Simultaneously, a brush on the back of the dust-proof plate moves with it, scraping away dust adhering to the transparent plate surface when it is open. However, during use, in high-temperature environments (especially outdoor settings), the internal temperature of this electrical control box easily exceeds the component's tolerance limit (≥60℃), accelerating component aging and causing malfunctions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an explosion-proof and dustproof electrical control box.

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

[0006] An explosion-proof and dustproof electrical control box, comprising:

[0007] An explosion-proof electrical control box has a rotating door mounted on its front side. The top and bottom outer walls of the explosion-proof electrical control box are provided with multiple ventilation horizontal slots at equal intervals, the outer walls on both sides are provided with multiple ventilation vertical slots at equal intervals, and the front ends of the four outer walls are provided with multiple heat dissipation corner slots at equal intervals. The included angle between the two sides of the heat dissipation corner slot is set to degrees.

[0008] The mounting connection plate has a mounting back frame fixedly mounted on its back. The mounting back frame is welded to the inner wall of the explosion-proof electrical control box. Multiple heat dissipation connecting cylinders are welded at equal intervals on the back of the mounting connection plate. Multiple heat dissipation rings are welded at equal intervals on the outer wall of the heat dissipation connecting cylinders. The heat dissipation connecting cylinders are located at the tail end of the inner cavity of the explosion-proof electrical control box.

[0009] As a further improvement of this utility model: the front of the mounting connecting plate is integrally formed with a load-bearing mounting frame, and a device mounting bracket is fixedly installed at the front end of the inner cavity of the load-bearing mounting frame.

[0010] As a further improvement of this utility model: the front of the explosion-proof electrical control box has an integrally formed limit frame, the inner wall of the front of the explosion-proof electrical control box is fixedly installed with an installation connection frame, and the front of the installation connection frame is fixedly connected with a sealing rubber frame.

[0011] As a further embodiment of this utility model: a mounting connecting cylinder is fixedly connected to the center of the front of the rotating box door, and a rotating mounting cover is rotatably mounted on the front of the mounting connecting cylinder.

[0012] As a further embodiment of this utility model: a rotating threaded rod is threadedly installed on the tail end of the mounting connecting cylinder, and a rotating connecting ring is rotatably installed on the tail end of the rotating threaded rod.

[0013] As a further improvement of this utility model: a transparent protective plate is fixedly connected to the back of the rotating connecting ring, and a fixed mounting cylinder is fixedly connected to each of the four corners of the front of the transparent protective plate.

[0014] As a further improvement of this utility model: a guide slide post is fixedly installed inside the fixed mounting cylinder, and the front end of the guide slide post is slidably sleeved with a limit sleeve.

[0015] As a further improvement of this utility model: the limiting sleeve is fixedly connected to the inner wall of the back of the rotating box door, and the transparent protective plate is attached to the front of the sealing rubber frame.

[0016] Compared with the prior art, this utility model provides an explosion-proof and dustproof electrical control box, which has the following beneficial effects:

[0017] This explosion-proof and dustproof electrical control box features an innovative partitioned heat dissipation design that utilizes forced convection cooling of the rear chamber to cool the front chamber, along with a robust quadruple dust and moisture barrier explosion-proof design. The core of this design is the isolation provided by the mounting connection plate and the tight sealing of the adjustable transparent protective plate. This successfully addresses the dual challenges of ensuring stable operation and absolute safety in harsh industrial environments with flammable and explosive gases, dust, humidity, and high dust levels. These challenges require both efficient heat dissipation to guarantee stable operation and complete isolation from external hazardous substances entering the core cavity. Furthermore, excellent visibility, effective protection of critical components, and convenient maintainability further enhance the practicality and reliability of the equipment.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of the overall assembly of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model. Figure 1 ;

[0021] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0022] Figure 4 This utility model Figure 2 A magnified view of the structure at point B in the middle;

[0023] Figure 5 This utility model Figure 2 A magnified schematic diagram of the structure at point C in the middle;

[0024] Figure 6 This is a partial cross-sectional view of the overall assembly of this utility model. Figure 2 .

[0025] In the diagram: 1. Explosion-proof electrical control box; 2. Ventilation horizontal slot; 3. Ventilation vertical slot; 4. Heat dissipation corner slot; 5. Rotating box door; 6. Rotating mounting arm; 7. Rotating mounting cover one; 8. Mounting connecting cylinder; 9. Rotating mounting cover two; 10. Observation glass plate; 11. Rotating threaded rod; 12. Rotating connecting ring; 13. Transparent protective plate; 14. Limiting frame; 15. Mounting connecting frame; 16. Sealing rubber frame; 17. Component mounting bracket; 18. Fixed mounting cylinder; 19. Guide slide column; 20. Limiting sleeve; 21. Bearing mounting frame; 22. Mounting connecting plate; 23. Mounting back frame; 24. Fixed connecting pin; 25. Heat dissipation connecting cylinder; 26. Heat dissipation ring fins. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] An explosion-proof and dustproof electrical control box, such as Figures 1 to 6 As shown, it includes: an explosion-proof electrical control box 1 and a mounting connection plate 22. The mounting connection plate 22 is located inside the explosion-proof electrical control box 1. The mounting connection plate 22 divides the inner cavity of the explosion-proof electrical control box 1 into front and rear parts to isolate external dust and air, and prevent the air flowing in the rear inner cavity of the explosion-proof electrical control box 1 from carrying dust and moisture into the front inner cavity.

[0028] Multiple ventilation transverse grooves 2 are equidistantly provided on the tail ends of the top and bottom outer walls of the explosion-proof electrical control box 1, and multiple ventilation longitudinal grooves 3 are equidistantly provided on the tail ends of the two outer walls. The ventilation transverse grooves 2 and ventilation longitudinal grooves 3 are connected to the rear inner cavity of the explosion-proof electrical control box 1 to facilitate heat dissipation of the explosion-proof electrical control box 1.

[0029] Multiple heat dissipation slots 4 are equidistantly provided on the front ends of the four outer walls. The vertical cross-section of the heat dissipation slot 4 is set as an isosceles triangle, and the included angle between the two side walls is set as 150 degrees. The heat dissipation slots 4 facilitate the improvement of the heat dissipation speed of the front inner cavity of the explosion-proof electrical control box 1.

[0030] A mounting back frame 23 is fixedly mounted on the back of the mounting connection plate 22. The mounting back frame 23 is welded to the inner wall of the explosion-proof electrical control box 1. Multiple fixing pins 24 are welded to the front of the mounting back frame 23. The fixing pins 24 penetrate the mounting connection plate 22 and are fixed by nuts. The connection between the fixing pins 24 and the mounting connection plate 22 is sealed by rubber gaskets. A rubber pad is attached to the front of the mounting back frame 23.

[0031] Multiple heat dissipation connecting cylinders 25 are welded at equal intervals on the back of the mounting connecting plate 22. The inner cavity of the heat dissipation connecting cylinder 25 passes through the mounting connecting plate 22 and communicates with the front inner cavity of the explosion-proof electrical control box 1. Multiple heat dissipation rings 26 are welded at equal intervals on the outer wall of the heat dissipation connecting cylinder 25. The heat dissipation connecting cylinder 25 is located in the rear inner cavity of the explosion-proof electrical control box 1. Together with the ventilation horizontal groove 2 and the ventilation vertical groove 3, it accelerates the heat dissipation speed of the front inner cavity of the explosion-proof electrical control box 1.

[0032] The front of the mounting plate 22 is integrally formed with a support mounting frame 21. The front end of the inner cavity of the support mounting frame 21 is fixedly mounted with a component mounting bracket 17. The component mounting bracket 17 is used to install circuit components designed inside the explosion-proof electrical control box 1, such as switches.

[0033] The explosion-proof electrical control box 1 has a rotating door 5 mounted on its front side, and a limit frame 14 is integrally formed on the front side of the explosion-proof electrical control box 1, as shown in the reference. Figure 2 When the rotating door 5 is closed, the limiting frame 14 is inserted into the rotating door 5 to reduce the possibility of outside air entering the front cavity.

[0034] An installation connection frame 15 is fixedly installed on the inner wall of the front of the explosion-proof electrical control box 1. The outer edge dimension of the front is the same as the inner wall dimension of the front of the explosion-proof electrical control box 1, and the inner edge dimension of the front is smaller than the inner edge dimension of the front of the limit card frame 14.

[0035] A sealing rubber frame 16 is fixedly connected to the front of the mounting frame 15. The sealing rubber frame 16 is located inside the mounting frame 15. The outer edge dimension of its front is the same as the inner edge dimension of the front of the mounting frame 15.

[0036] A rotating mounting arm 6 is fixedly installed on the top of the front of the rotating door 5. A rotating mounting cover 7 is rotatably installed at the bottom of the rotating mounting arm 6. The rotating door 5 body corresponding to the rotating mounting cover 7 has a mounting slot. An observation glass plate 10 is fixedly installed inside the mounting slot. The observation glass plate 10 allows the user to observe the internal status of the explosion-proof electrical control box 1. The rotating mounting cover 7 protects the observation glass plate 10 and reduces the impact of the environment on the observation glass plate 10.

[0037] A mounting connecting cylinder 8 is fixedly connected to the center of the front of the rotating box door 5. A rotating mounting cover 9 is rotatably mounted on the front of the mounting connecting cylinder 8. A rotating threaded rod 11 is threadedly mounted on the tail end of the mounting connecting cylinder 8. A rotating connecting ring 12 is rotatably mounted on the tail end of the rotating threaded rod 11 via a bearing.

[0038] A transparent protective plate 13 is fixedly connected to the back of the rotating connecting ring 12. The transparent protective plate 13 can be made of PC board or acrylic board, and a fixed mounting cylinder 18 is fixedly connected to each of the four corners of the front of the transparent protective plate 13.

[0039] Inside the fixed mounting cylinder 18, a guide slide column 19 is fixedly installed. The front end of the guide slide column 19 is slidably sleeved with a limiting sleeve 20, which is fixedly connected to the inner wall of the back of the rotating box door 5. The transparent protective plate 13 is attached to the front of the sealing rubber frame 16, further reducing the possibility of outside air freely entering the front cavity of the explosion-proof electrical control box 1.

[0040] Working principle:

[0041] Please refer to Figures 1 to 6 Assemble the device as shown in the figure;

[0042] In actual use, the electrical components of the control cabinet are fixedly installed on the device mounting bracket 17. During the operation of the electrical components, part of the heat generated is dissipated into the air through the heat dissipation corner groove 4, and part is transferred to the rear inner cavity through the heat dissipation connecting cylinder 25 and the heat dissipation ring fin 26. With the cooperation of the ventilation horizontal groove 2 and the ventilation vertical groove 3, the flowing air accelerates the heat dissipation of the heat dissipation ring fin 26, keeping the temperature of the front inner cavity of the explosion-proof control box 1 at a relatively low level, ensuring the continuous operation of the electrical components. At the same time, rotating the box door 5 and the adjustable transparent protective plate 13 can effectively block the path of outside air into the front inner cavity of the explosion-proof control box 1, preventing moisture and dust in the air from entering, and effectively improving the explosion-proof capability and dustproof capability of the explosion-proof control box 1.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof dust-tight electric control box, characterized by comprising: include: An explosion-proof electrical control box (1) has a rotating door (5) installed on its front side. The top and bottom outer walls of the explosion-proof electrical control box (1) are provided with multiple ventilation horizontal slots (2) at equal intervals. The tail ends of the outer walls on both sides are provided with multiple ventilation vertical slots (3) at equal intervals. The front ends of the four outer walls are provided with multiple heat dissipation corner slots (4) at equal intervals. The included angle between the two sides of the heat dissipation corner slot (4) is set to 150 degrees. The mounting connection plate (22) has a mounting back frame (23) fixedly mounted on its back. The mounting back frame (23) is welded to the inner wall of the explosion-proof electrical control box (1). Multiple heat dissipation connecting cylinders (25) are welded at equal intervals on the back of the mounting connection plate (22). Multiple heat dissipation rings (26) are welded at equal intervals on the outer wall of the heat dissipation connecting cylinder (25). The heat dissipation connecting cylinder (25) is located at the tail end of the inner cavity of the explosion-proof electrical control box (1).

2. The explosion-proof dust-protected electric control box according to claim 1, characterized in that: The front of the mounting connection plate (22) is integrally formed with a bearing mounting frame (21), and a device mounting bracket (17) is fixedly installed at the front end of the inner cavity of the bearing mounting frame (21).

3. The explosion-proof dust-protected electric control box according to claim 1, characterized in that: The explosion-proof electrical control box (1) has an integrally formed limit frame (14) on the front, and an installation connection frame (15) is fixedly installed on the inner wall of the front of the explosion-proof electrical control box (1). A sealing rubber frame (16) is fixedly connected to the front of the installation connection frame (15).

4. The explosion-proof dust-protected electric control box according to claim 1, characterized in that: The rotating box door (5) is fixedly connected to the center of the front side of the mounting connecting cylinder (8), and the mounting connecting cylinder (8) is rotatably mounted with a rotating mounting cover (9).

5. The explosion-proof and dust-tight electric control box according to claim 4, characterized in that: The tail end of the mounting connecting cylinder (8) is threaded with a rotating threaded rod (11), and the tail end of the rotating threaded rod (11) is rotatably mounted with a rotating connecting ring (12).

6. The explosion-proof and dust-tight electric control box according to claim 5, characterized in that: A transparent protective plate (13) is fixedly connected to the back of the rotating connecting ring (12), and a fixed mounting cylinder (18) is fixedly connected to the four corners of the front of the transparent protective plate (13).

7. The explosion-proof and dust-tight electric control box according to claim 6, characterized in that: The guide slide column (19) is fixedly installed inside the fixed mounting cylinder (18), and the front end of the guide slide column (19) is slidably sleeved with the limit sleeve (20).

8. The explosion-proof dust-protected electric control box according to claim 7, characterized in that: The limiting sleeve (20) is fixedly connected to the inner wall of the back of the rotating box door (5), and the transparent protective plate (13) is attached to the front of the sealing rubber frame (16).

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