Heat dissipation device for explosion-proof control cabinet

Abstract

The utility model discloses a heat radiation device for an explosion-proof control cabinet. The heat radiation device comprises a housing, a heat radiation fin fixing mechanism and an auxiliary heat radiation mechanism. A rectangular limiting groove is formed in the left side face of the shell, cooling fins are slidably connected into the rectangular limiting groove, a temperature sensor is arranged on the front side of the upper surface of the shell, and the sensing end of the temperature sensor extends into the shell; the cooling fin fixing mechanisms are respectively arranged at the edges of the rectangular limiting grooves; the auxiliary heat dissipation mechanism comprises rotating shafts, a rectangular frame, rotating shafts and heat dissipation fans, the rotating shafts are rotationally connected to the upper inner wall and the lower inner wall of the rear side of the shell correspondingly, the rectangular frame is fixedly connected between the two rotating shafts, the heat dissipation fans are rotationally connected to the interior of the rectangular frame through the rotating shafts correspondingly, and a single-chip microcomputer is arranged on the left side face of the shell. According to the heat dissipation device for the explosion-proof control cabinet, the heat dissipation structure is diversified, the heat dissipation speed is high, the heat dissipation effect is better, and the heat dissipation plate is installed, so that later maintenance and cleaning of the heat dissipation plate are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation for explosion-proof control cabinets, in particular to a heat dissipation device for explosion-proof control cabinets. Background Art

[0002] Explosion-proof control cabinets are devices designed to operate safely in explosive environments such as flammable gases, steam, and dust. They are primarily used to control, monitor, and protect electrical equipment from explosions. In these hazardous environments, electrical equipment failure or improper operation can cause fires or explosions, resulting in serious casualties and property damage. Therefore, the design and manufacture of explosion-proof control cabinets comply with stringent safety standards and requirements.

[0003] Some existing explosion-proof control cabinets use heat dissipation devices. A cooler is installed inside the explosion-proof control cabinet to reduce the temperature inside the equipment through the circulation of refrigerant.

[0004] Traditional heat dissipation devices for explosion-proof control cabinets have the following problems: single heat dissipation structure, slow heat dissipation speed, poor heat dissipation effect, and the cooler is installed by bolts and nuts, which is inconvenient for subsequent cleaning and maintenance. Therefore, we propose a heat dissipation device for explosion-proof control cabinets. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a heat dissipation device for an explosion-proof control cabinet. The heat dissipation structure is diverse, the heat dissipation speed is faster, the heat dissipation effect is better, and the installation of a heat dissipation plate is convenient for later maintenance and cleaning of the heat dissipation plate, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a heat dissipation device for an explosion-proof control cabinet, comprising a housing, a heat sink fixing mechanism and an auxiliary heat dissipation mechanism;

[0007] Housing: A rectangular limiting groove is provided on the left side thereof, a heat sink is slidably connected to the interior of the rectangular limiting groove, a temperature sensor is provided on the front side of the upper surface of the housing, and the sensing end of the temperature sensor extends deep into the interior of the housing;

[0008] Heat sink fixing mechanism: it is respectively arranged at the edge of the rectangular limiting groove;

[0009] Auxiliary heat dissipation mechanism: It includes a rotating shaft, a rectangular frame, a rotating shaft and a cooling fan. The upper and lower inner walls on the rear side of the shell are respectively rotatably connected to the rotating shaft, and a rectangular frame is fixedly connected between the two rotating shafts. The interior of the rectangular frame is respectively rotatably connected to the cooling fan through the rotating shaft. The heat dissipation structure is diverse, the heat dissipation speed is faster, and the heat dissipation effect is better. A heat dissipation plate is installed to facilitate the later maintenance and cleaning of the heat dissipation plate.

[0010] Further, a single-chip microcomputer is provided on the left side of the housing. The input end of the single-chip microcomputer is electrically connected to an external power supply. The temperature sensor is bidirectionally electrically connected to the single-chip microcomputer. The input ends of the cooling fans are all electrically connected to the output end of the single-chip microcomputer, providing electrical connection for each electrical appliance.

[0011] Further, the heat sink fixing mechanism includes a rectangular block, a sliding plate and an insertion strip. Rectangular blocks that are symmetric in the front and back are respectively provided at the edges of the upper and lower ends of the rectangular limiting groove. Sliding plates are respectively slidably connected inside the rectangular blocks. Insertion strips are respectively fixedly connected to the inner ends of the sliding plates, facilitating fixation.

[0012] Further, the heat sink fixing mechanism further includes a telescopic rod and a spring. Telescopic rods are respectively fixedly connected between the inner walls of the rectangular blocks and the outer sides of the adjacent sliding plates. Springs are respectively sleeved outside the telescopic rods, facilitating resilience.

[0013] Further, the auxiliary heat dissipation mechanism further includes an electric push rod II, an H-shaped block, a connecting rod and a U-shaped block. The U-shaped blocks are respectively arranged at the middle parts of the lower ends of the upper cooling fans and the middle parts of the upper ends of the lower cooling fans. The electric push rod II is arranged at the middle part of the rear side of the rectangular frame. The telescopic end of the electric push rod II is fixedly connected to the H-shaped block. Connecting rods are respectively rotatably connected between the upper and lower ends of the H-shaped block and the adjacent U-shaped blocks through pin shafts. The input end of the electric push rod II is electrically connected to the output end of the single-chip microcomputer, providing up-and-down swing drive.

[0014] Further, the auxiliary heat dissipation mechanism further includes an electric push rod I, a slide rail, a rack and a gear. The gear is fixedly connected to the upper end of the upper rotating shaft. A slide rail is provided on the upper surface of the housing. A rack is slidably connected inside the slide rail. The rack is meshed with the gear. The electric push rod I is arranged on the upper surface of the housing. The telescopic end of the electric push rod I is fixedly connected to the right end of the rack. The input end of the electric push rod I is electrically connected to the output end of the single-chip microcomputer, providing left-and-right swing drive.

[0015] Further, symmetric legs are provided on the lower end of the housing, providing support.

[0016] Further, a protective cover is provided on the rear side of the upper surface of the housing. The electric push rod I, the slide rail, the rack and the gear are all located inside the protective cover, providing protection.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The heat dissipation device for this explosion-proof control cabinet has the following advantages:

[0018] 1. When the explosion-proof control cabinet is in use, high temperature may occur inside it. The temperature sensor will monitor the temperature inside the cabinet in real time, and then transmit the detected data to the single-chip microcomputer. The single-chip microcomputer will integrate the data. When the temperature inside the explosion-proof control cabinet reaches a certain value, through the regulation of the single-chip microcomputer, the first electric push rod, the cooling fan, and the second electric push rod will operate. When the first electric push rod operates, the telescopic end of the first electric push rod will push the rack to slide left and right in the slide rail, thereby driving the meshing gear to rotate. The rotation of the gear will drive the rotating shaft to rotate, and the rotation of the rotating shaft will drive the rectangular frame to rotate. The rotation of the rectangular frame will drive the cooling fan to swing left and right. Then the second electric push rod operates, and the telescopic end of the second electric push rod will push the H-shaped block forward. The upper and lower ends of the H-shaped block will respectively pull the U-shaped block through the connecting rod, thereby causing the two cooling fans to swing up and down. The cooling fans will operate, and the cooling fans will swing up, down, left, and right, quickly blowing the external air onto the surface of the heat sink. The heat sink will quickly absorb and convert the internal heat of the explosion-proof control cabinet. The heat dissipation structure is diverse, the heat dissipation speed is fast, and the heat dissipation effect is better.

[0019] 2. Then when it is necessary to replace and clean the heat sink, first press the insertion strips respectively to make the insertion strips contract inside the rectangular block. Then, pull out the heat sink from the rectangular limit groove, and then clean and repair the heat sink. Then insert the heat sink into the rectangular limit groove. Then, under the elastic return action of the telescopic rod and the spring, the insertion strips will pop out, aligning the adjacent two insertion strips to fix the heat sink and prevent it from falling. Installing the heat dissipation plate facilitates the later maintenance and cleaning of the heat dissipation plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0022] Figure 3 is a schematic cross-sectional structural diagram of the rear side of the present utility model;

[0023] Figure 4 is a schematic cross-sectional structural diagram of the left side of the present utility model;

[0024] Figure 5 is an enlarged structural diagram of part A of the present utility model;

[0025] Figure 6 is an enlarged structural diagram of part B of the present utility model;

[0026] Figure 7 is an enlarged structural diagram of part C of the present utility model.

[0027] In the figure: 1 housing, 2 legs, 3 protective cover, 4 heat sink, 5 heat sink fixing mechanism, 51 rectangular block, 52 telescopic rod, 53 spring, 54 slide plate, 55 insertion bar, 6 auxiliary heat dissipation mechanism, 601 first electric push rod, 602 slide rail, 603 rack, 604 rotating shaft, 605 gear, 606 rectangular frame, 607 rotating shaft, 608 heat dissipation fan, 609 second electric push rod, 610 H-shaped block, 611 connecting rod, 612 U-shaped block, 7 temperature sensor, 8 single-chip microcomputer, 9 rectangular limiting groove. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-7 , this embodiment provides a technical solution: a heat dissipation device for an explosion-proof control cabinet, including a housing 1, a heat sink fixing mechanism 5 and an auxiliary heat dissipation mechanism 6;

[0030] Housing 1: A rectangular limiting groove 9 is provided on its left side. A heat sink 4 is slidably connected inside the rectangular limiting groove 9. A temperature sensor 7 is provided on the front side of the upper surface of the housing 1. The sensing end of the temperature sensor 7 extends into the interior of the housing 1. A single-chip microcomputer 8 is provided on the left side of the housing 1. The input end of the single-chip microcomputer 8 is electrically connected to an external power supply. The temperature sensor 7 is bidirectionally electrically connected to the single-chip microcomputer 8. The input ends of the heat dissipation fans 608 are all electrically connected to the output end of the single-chip microcomputer 8. Legs 2 that are symmetric left and right are provided at the lower end of the housing 1;

[0031] Heat sink fixing mechanism 5: It is respectively arranged at the edges of the rectangular limiting groove 9. The heat sink fixing mechanism 5 includes a rectangular block 51, a sliding plate 54 and an inserting strip 55. Rectangular blocks 51 are respectively arranged symmetrically in the front and back at the edges of the upper and lower ends of the rectangular limiting groove 9. The inner parts of the rectangular blocks 51 are respectively slidably connected with sliding plates 54. The inner ends of the sliding plates 54 are respectively fixedly connected with inserting strips 55. The heat sink fixing mechanism 5 further includes a telescopic rod 52 and a spring 53. A telescopic rod 52 is respectively fixedly connected between the inner wall of the rectangular block 51 and the outer side surface of the adjacent sliding plate 54. A spring 53 is respectively sleeved on the outer part of the telescopic rod 52. Then when it is necessary to replace and clean the heat sink 4, first press the inserting strips 55 respectively to make the inserting strips 55 respectively contract inside the rectangular block 51. Then draw out the heat sink 4 from the rectangular limiting groove 9. Then clean and repair the heat sink 4. Then insert the heat sink 4 into the rectangular limiting groove 9. Then under the rebounding action of the telescopic rod 52 and the spring 53, the inserting strips 55 are respectively ejected, so that the adjacent two inserting strips 55 are aligned to fix the heat sink 4 and prevent the heat sink 4 from falling off;

[0032] Auxiliary heat dissipation mechanism 6: It includes a rotating shaft 604, a rectangular frame 606, a rotating shaft 607 and a heat dissipation fan 608. The upper and lower inner walls at the rear side of the housing 1 are respectively rotatably connected with a rotating shaft 604. A rectangular frame 606 is fixedly connected between the two rotating shafts 604. The interior of the rectangular frame 606 is respectively rotatably connected with a heat dissipation fan 608 through a rotating shaft 607. The auxiliary heat dissipation mechanism 6 further includes an electric push rod two 609, an H-shaped block 610, a connecting rod 611 and a U-shaped block 612. The U-shaped blocks 612 are respectively arranged at the middle of the lower end of the upper heat dissipation fan 608 and the middle of the upper end of the lower heat dissipation fan 608. The electric push rod two 609 is arranged at the middle of the rear side of the rectangular frame 606. The telescopic end of the electric push rod two 609 is fixedly connected with an H-shaped block 610. Connecting rods 611 are respectively rotatably connected between the upper and lower ends of the H-shaped block 610 and the adjacent U-shaped blocks 612 through pin shafts. The input end of the electric push rod two 609 is electrically connected to the output end of the single-chip microcomputer 8. The auxiliary heat dissipation mechanism 6 further includes an electric push rod one 601, a slide rail 602, a rack 603 and a gear 605. The gear 605 is fixedly connected to the upper end of the upper rotating shaft 604. A slide rail 602 is provided on the upper surface of the housing 1. A rack 603 is slidably connected inside the slide rail 602. The rack 603 is meshed with the gear 605. The electric push rod one 601 is arranged on the upper surface of the housing 1. The telescopic end of the electric push rod one 601 is fixedly connected to the right end of the rack 603. The input end of the electric push rod one 601 is electrically connected to the output end of the single-chip microcomputer 8. A protective cover 3 is provided at the rear side of the upper surface of the housing 1. The electric push rod one 601, the slide rail 602, the rack 603 and the gear 605 are all located inside the protective cover 3. When the explosion-proof control cabinet is in use, the interior of the explosion-proof control cabinet will be in a high-temperature situation. The temperature sensor 7 will continuously monitor the temperature inside the housing 1. Then the temperature sensor 7 will transmit the detected data to the single-chip microcomputer 8. The single-chip microcomputer 8 will integrate the data. When the temperature inside the explosion-proof control cabinet reaches a certain value, through the regulation of the single-chip microcomputer 8, the electric push rod one 601, the heat dissipation fan 608 and the electric push rod two 609 will operate. When the electric push rod one 601 operates, the telescopic end of the electric push rod one 601 will push the rack 603 to slide left and right inside the slide rail 602, thereby driving the meshed gear 605 to rotate. The rotation of the gear 605 will drive the rotating shaft 604 to rotate. The rotation of the rotating shaft 604 will drive the rectangular frame 606 to rotate. The rotation of the rectangular frame 606 will drive the heat dissipation fan 608 to swing left and right. Then the electric push rod two 609 will operate. The telescopic end of the electric push rod two 609 will push the H-shaped block 610 forward. The upper and lower ends of the H-shaped block 610 will respectively pull the U-shaped blocks 612 through the connecting rods 611, thereby causing the two heat dissipation fans 608 to swing up and down. The heat dissipation fans 608 will operate. The heat dissipation fans 608 will swing up, down, left and right, and quickly blow the external air onto the surface of the heat sink 4. The heat sink 4 will quickly absorb and convert the heat inside the explosion-proof control cabinet.

[0033] The working principle of a heat dissipation device for an explosion-proof control cabinet provided by the present utility model is as follows: When the explosion-proof control cabinet is in use, high temperature will occur inside the explosion-proof control cabinet. The temperature sensor 7 will continuously monitor the temperature inside the housing 1. Then, the temperature sensor 7 will transmit the detected data to the single-chip microcomputer 8, and the single-chip microcomputer 8 will integrate the data. When the temperature inside the explosion-proof control cabinet reaches a certain value, through the regulation of the single-chip microcomputer 8, the first electric push rod 601, the heat dissipation fan 608, and the second electric push rod 609 will operate. When the first electric push rod 601 operates, the telescopic end of the first electric push rod 601 will push the rack 603 to slide left and right within the slide rail 602, thereby driving the meshing gear 605 to rotate. The rotation of the gear 605 will drive the rotating shaft 604 to rotate, and the rotation of the rotating shaft 604 will drive the rectangular frame 606 to rotate. The rotation of the rectangular frame 606 will drive the heat dissipation fan 608 to swing left and right. Then, the second electric push rod 609 operates, and the telescopic end of the second electric push rod 609 will push the H-shaped block 610 forward. The upper and lower ends of the H-shaped block 610 will respectively pull the U-shaped block 612 through the connecting rods 611, thereby causing the two heat dissipation fans 608 to swing up and down. The heat dissipation fan 608 will operate, and the heat dissipation fan 608 will swing up, down, left, and right, quickly blowing the external air onto the surface of the heat sink 4. The heat sink 4 will quickly absorb and convert the internal heat of the explosion-proof control cabinet. Then, when the heat sink 4 needs to be replaced or cleaned, first press the insertion strips 55 respectively, so that the insertion strips 55 are respectively retracted inside the rectangular block 51. Then, the heat sink 4 is pulled out from the rectangular limiting groove 9. Then, the heat sink 4 is cleaned and repaired. Then, the heat sink 4 is inserted into the rectangular limiting groove 9. Then, under the elastic return action of the telescopic rod 52 and the spring 53, the insertion strips 55 will pop out respectively, aligning the adjacent two insertion strips 55 to fix the heat sink 4 and prevent the heat sink 4 from falling off.

[0034] It should be noted that for the first electric push rod 601, the second electric push rod 609, and the temperature sensor 7 disclosed in the above embodiments, the first electric push rod 601 can be selected as RM-RLA-11-150-2, the second electric push rod 609 can be selected as SKG-0B-60, and the temperature sensor 7 can be selected as DS18B20. The single-chip microcomputer 8 controls the operation of the first electric push rod 601, the heat dissipation fan 608, the second electric push rod 609, and the temperature sensor 7 using common methods in the prior art.

[0035] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A heat dissipation device for an explosion-proof control cabinet, characterized in that: It includes a housing (1), a heat sink fixing mechanism (5) and an auxiliary heat dissipation mechanism (6); Housing (1): A rectangular limiting groove (9) is provided on the left side surface thereof. A heat sink (4) is slidably connected inside the rectangular limiting groove (9). A temperature sensor (7) is provided on the front side of the upper surface of the housing (1), and the sensing end of the temperature sensor (7) extends into the interior of the housing (1); Heat sink fixing mechanism (5): It is respectively arranged at the edge of the rectangular limiting groove (9); Auxiliary heat dissipation mechanism (6): It includes a rotating shaft (604), a rectangular frame (606), a rotating shaft (607) and a heat dissipation fan (608). The upper and lower inner walls at the rear side of the housing (1) are respectively rotatably connected with a rotating shaft (604). A rectangular frame (606) is fixedly connected between the two rotating shafts (604). Heat dissipation fans (608) are respectively rotatably connected inside the rectangular frame (606) through a rotating shaft (607).

2. The heat dissipation device for an explosion-proof control cabinet according to claim 1, characterized in that: A single-chip microcomputer (8) is provided on the left side surface of the housing (1). The input end of the single-chip microcomputer (8) is electrically connected to an external power supply. The temperature sensor (7) is bidirectionally electrically connected to the single-chip microcomputer (8). The input ends of the heat dissipation fans (608) are all electrically connected to the output end of the single-chip microcomputer (8).

3. The heat dissipation device for an explosion-proof control cabinet according to claim 1, wherein: The heat sink fixing mechanism (5) includes a rectangular block (51), a sliding plate (54) and an inserting strip (55). Rectangular blocks (51) that are symmetric front and back are respectively provided at the edges of the upper and lower ends of the rectangular limiting groove (9). Sliding plates (54) are respectively slidably connected inside the rectangular blocks (51). Inserting strips (55) are respectively fixedly connected to the inner ends of the sliding plates (54).

4. The heat dissipation device for an explosion-proof control cabinet according to claim 3, wherein: The heat sink fixing mechanism (5) further includes a telescopic rod (52) and a spring (53). Telescopic rods (52) are respectively fixedly connected between the inner wall of the rectangular block (51) and the outer side surface of the adjacent sliding plate (54). Springs (53) are respectively sleeved outside the telescopic rods (52).

5. The heat dissipation device for an explosion-proof control cabinet according to claim 2, wherein: The auxiliary heat dissipation mechanism (6) further includes an electric push rod two (609), an H-shaped block (610), a connecting rod (611) and a U-shaped block (612). The U-shaped blocks (612) are respectively arranged at the middle part of the lower end of the upper heat dissipation fan (608) and the middle part of the upper end of the lower heat dissipation fan (608). The electric push rod two (609) is arranged at the middle part of the rear side surface of the rectangular frame (606). The telescopic end of the electric push rod two (609) is fixedly connected with an H-shaped block (610). Connecting rods (611) are respectively rotatably connected between the upper and lower ends of the H-shaped block (610) and the adjacent U-shaped blocks (612) through a pin shaft. The input end of the electric push rod two (609) is electrically connected to the output end of the single-chip microcomputer (8).

6. The heat dissipation device for an explosion-proof control cabinet according to claim 5, wherein: The auxiliary heat dissipation mechanism (6) further includes an electric push rod one (601), a slide rail (602), a rack (603) and a gear (605). The gear (605) is fixedly connected to the upper end of the upper-side rotating shaft (604). The upper surface of the housing (1) is provided with a slide rail (602). The inside of the slide rail (602) is slidably connected with a rack (603). The rack (603) is meshed with the gear (605). The electric push rod one (601) is arranged on the upper surface of the housing (1). The telescopic end of the electric push rod one (601) is fixedly connected to the right end of the rack (603). The input end of the electric push rod one (601) is electrically connected to the output end of the single-chip microcomputer (8).

7. The heat dissipation device for an explosion-proof control cabinet according to claim 1, characterized in that: The lower end of the housing (1) is provided with symmetrically arranged legs (2) on the left and right sides.

8. The heat dissipation device for an explosion-proof control cabinet according to claim 6, wherein: The rear side of the upper surface of the housing (1) is provided with a protective cover (3). The electric push rod one (601), the slide rail (602), the rack (603) and the gear (605) are all located inside the protective cover (3).

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