Explosion-proof distribution box with good heat dissipation effect

Abstract

The utility model discloses an explosion-proof distribution box with a good heat dissipation effect, which comprises a box body, a housing is arranged on the back surface of the box body, a first sealing strip is arranged between the housing and the box body, a mounting plate is arranged in the box body, the mounting plate is provided with a heat conduction part and penetrates through the back surface of the box body, and the heat conduction part is arranged in the box body. The heat conduction part is provided with a temperature uniforming plate, and one end face of the temperature uniforming plate is provided with a plurality of heat dissipation fins at equal intervals from left to right. Heat of an electrical element is absorbed through the mounting plate, heat is conducted to the uniform temperature plate through the heat conducting plate, the uniform temperature plate takes away the heat from all directions and conducts the heat to the heat dissipation fins, air exchanges heat with the heat dissipation fins, the density of hot air is decreased to form upflow, the upflow is exhausted from the heat dissipation holes, and meanwhile surrounding cold air is supplemented from the ventilation holes. And continuous air flow circulation is formed, so that the temperature in the box body is effectively reduced, and the product has the advantages of good heat dissipation effect and reduced operation load.

Description

Technical Field

[0001] This utility model relates to the technical fields of petroleum, chemical, and mining industries, and in particular to an explosion-proof distribution box with good heat dissipation. Background Technology

[0002] Currently, most explosion-proof distribution boxes on the market are made of cast aluminum alloy or stainless steel. Explosion-proof distribution boxes are strictly prohibited from being opened; all components are installed within an explosion-proof enclosure with strong sealing and no air circulation. The cabinet of an explosion-proof distribution box is much thicker than a regular distribution cabinet. If there are high-power electrical components inside the cabinet, a large amount of heat will be generated. Due to the high degree of sealing, heat dissipation is poor, the temperature inside the enclosure rises, affecting the lifespan of equipment components and posing a significant safety hazard. Adding multiple cooling fans to the explosion-proof distribution box not only increases the operating load but also reduces its sealing performance and safety. Therefore, the applicant has developed a beneficial design and found a solution to the above problems. The technical solution described below arose from this background. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of traditional explosion-proof distribution box designs and provide a product with good heat dissipation and reduced operating load.

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] An explosion-proof distribution box with good heat dissipation includes a box body, a cover on the back of the box body, a first sealing strip between the cover and the box body, a mounting plate inside the box body, a heat-conducting part on the mounting plate that passes through the back of the box body, a heat-conducting part having a heat-equalizing plate, a plurality of equally spaced heat dissipation fins on one end face of the heat-equalizing plate from left to right and disposed inside the cover, a plurality of ventilation holes at the bottom of the cover, and a plurality of heat dissipation holes at the top of the cover.

[0006] Preferably, the housing has a through hole for the heat-conducting part to pass through, and the back of the housing has a first countersunk hole for accommodating the first sealing strip.

[0007] Preferably, the mounting plate has mounting holes arranged in a row, the heat-conducting part has a second countersunk hole, the second countersunk hole has a second sealing strip, and abuts against the side wall of the through hole.

[0008] Preferably, silicone grease is applied between the heat spreader and the heat-conducting part.

[0009] Preferably, the cover is provided with a mounting part that abuts against the first sealing strip. The mounting part is provided with a plurality of fastening screws and is threadedly connected to the housing, so that the mounting part is pressed tightly against the first sealing strip.

[0010] Preferably, the inlet of the ventilation hole and the inlet of the heat dissipation hole are provided with outwardly expanding inclined surfaces on both sides.

[0011] Beneficial effects:

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention mounts electronic components onto a mounting plate. When the electrical components operate and generate heat, the heat is conducted to the mounting plate, and then further conducted to a vapor chamber. The vapor chamber utilizes the principle of gas-liquid phase change, employing evaporation and condensation processes to transfer heat, effectively removing heat from all directions. The remaining heat is then conducted to the heat dissipation fins, where air exchanges heat with the fins. The reduced density of the hot air creates an upward airflow that exits through the ventilation holes. Simultaneously, surrounding cool air enters through the ventilation holes, creating a continuous airflow circulation. This effectively reduces the temperature inside the enclosure and eliminates the need for forced air cooling methods such as cooling fans, thus reducing the operating load of the explosion-proof distribution box. The product boasts advantages such as excellent heat dissipation and reduced operating load. Attached Figure Description

[0014] Figure 1 This is a side cross-sectional view of an explosion-proof distribution box with good heat dissipation according to the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of an explosion-proof distribution box with good heat dissipation according to the present invention.

[0016] Figure 3 This utility model Figure 2 A partial enlarged view A of an explosion-proof distribution box with good heat dissipation;

[0017] Figure 4 This utility model Figure 2 A partial enlarged view (B) of an explosion-proof distribution box with good heat dissipation;

[0018] Figure 5 This is an exploded view of an explosion-proof distribution box with good heat dissipation according to this utility model;

[0019] Figure 6 This is a schematic diagram of the mounting plate of an explosion-proof distribution box with good heat dissipation according to the present invention.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] Reference numerals: 1. Housing; 2. Cover; 3. First sealing strip; 4. Mounting plate; 5. Heat spreader plate; 6. Fastening screw; 7. Inclined surface; 11. Through hole; 12. First countersunk hole; 21. Ventilation hole; 22. Heat dissipation hole; 23. Mounting part; 41. Heat-conducting part; 42. Mounting hole; 43. Second countersunk hole; 44. Second sealing strip; 51. Heat dissipation fins. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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.

[0024] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Reference example Figures 1 to 6An explosion-proof distribution box with good heat dissipation includes a box body 1, a cover 2 on the back of the box body 1, a first sealing strip 3 between the cover 2 and the box body 1, a mounting plate 4 inside the box body 1, a heat-conducting part 41 passing through the back of the box body 1, a heat-dissipating plate 5 on the heat-conducting part 41, a plurality of equally spaced heat dissipation fins 51 on one end face of the heat-dissipating plate 5 from left to right, and is disposed inside the cover 2, a plurality of ventilation holes 21 at the bottom of the cover 2, and a plurality of heat dissipation holes 22 at the top of the cover 2; electronic components are mounted and fixed on the mounting plate 4, and when the electronic components operate and generate heat, the heat is conducted to the mounting plate 4, and the heat-conducting part 41 absorbs the heat. The heat is conducted to the vapor chamber 5, which is existing technology and will not be described in detail here. The vapor chamber 5 uses the principle of gas-liquid phase change to transfer heat through evaporation and condensation, thereby effectively removing heat from all directions. The heat is conducted to the heat dissipation fins 51 through the vapor chamber 5. The air exchanges heat with the multiple heat dissipation fins 51. The density of the hot air decreases, forming an upward airflow that is discharged from the heat dissipation hole 22. At the same time, the surrounding cold air is replenished through the ventilation hole 21, forming a continuous airflow circulation, thereby effectively reducing the temperature inside the enclosure 1. Furthermore, there is no need to use forced air cooling methods such as cooling fans for heat dissipation, reducing the operating load of the explosion-proof distribution box.

[0026] It is worth mentioning that the box body 1 is provided with a through hole 11 for the heat conduction part 41 to pass through, and the back of the box body 1 is provided with a first countersunk hole 12 to accommodate the first sealing strip 3.

[0027] It is worth mentioning that the mounting plate 4 is provided with mounting holes 42 arranged in a row, the heat-conducting part 41 is provided with a second countersunk hole 43, the second countersunk hole 43 is provided with a second sealing strip 44, and abuts against the side wall of the through hole 11. The mounting holes 42 facilitate the fixing of electrical components to the mounting plate 4, the second countersunk hole 43 provides precise positioning for the second sealing strip 44, and at the same time, the second sealing strip 44 reduces the gap between the heat-conducting part 41 and the through hole 11, improving the sealing performance inside the housing 1;

[0028] It is worth mentioning that silicone grease is applied between the heat spreader 5 and the heat conduction part 41. The silicone grease reduces the gap between the heat spreader 5 and the heat conduction part 41 and improves the heat conduction efficiency.

[0029] It is worth mentioning that the cover 2 is provided with a mounting part 23, which abuts against the first sealing strip 3. The mounting part 23 is provided with several fastening screws 6, which are threaded to the box body 1, so that the mounting part 23 is pressed tightly against the first sealing strip 3. By pressing the first sealing strip 3 tightly with the mounting part 23, the gap between the mounting part 23 and the box body 1 is reduced, allowing hot air to accumulate above the cover 2, forming a negative pressure, thereby accelerating the air convection circulation speed.

[0030] It is worth mentioning that there are outwardly expanding inclined surfaces 7 on both sides of the inlet of the ventilation hole 21 and the inlet of the heat dissipation hole 22. The inclined surfaces 7 guide more cold air or hot air through the ventilation hole 21 and the heat dissipation hole 22 in an orderly manner.

[0031] The above design scheme enables the product to achieve the advantages of good heat dissipation and reduced operating load.

[0032] The above description provides a more detailed explanation of the present invention in conjunction with specific embodiments. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present invention.

Claims

1. An explosion-proof distribution box with good heat dissipation effect, comprising a box body (1), characterized in that: The back of the box (1) is provided with a cover (2), the cover (2) and the box (1) are provided with a first sealing strip (3), the box (1) is provided with a mounting plate (4), the mounting plate (4) is provided with a heat conduction part (41), and the heat conduction part (41) passes through the back of the box (1), the heat conduction part (41) is provided with a uniform temperature plate (5), one end surface of the uniform temperature plate (5) is provided with a plurality of equidistant heat dissipation fins (51) from left to right, and is arranged in the cover (2), the bottom of the cover (2) is provided with a plurality of ventilation holes (21), and the upper side of the cover (2) is provided with a plurality of heat dissipation holes (22).

2. The explosion-proof distribution box with good heat dissipation effect according to claim 1, characterized in that: The box (1) is provided with a through hole (11) for the heat conduction part (41) to pass through, and the back of the box (1) is provided with a first counterbore (12) for accommodating the first sealing strip (3).

3. The explosion-proof distribution box with good heat dissipation effect according to claim 2, characterized in that: The mounting plate (4) is provided with a mounting hole (42) arranged in an array, the heat conduction part (41) is provided with a second counterbore (43), the second counterbore (43) is provided with a second sealing strip (44), and the second counterbore (43) abuts against the side wall of the through hole (11).

4. The explosion-proof distribution box with good heat dissipation effect according to claim 3, characterized in that: The uniform temperature plate (5) and the heat conduction part (41) are coated with silicone grease.

5. The explosion-proof distribution box with good heat dissipation effect according to claim 2, characterized in that: The cover (2) is provided with a mounting portion (23) and abuts against the first sealing strip (3), the mounting portion (23) is provided with a plurality of fastening screws (6) and is threadedly connected to the box (1), so that the mounting portion (23) is tightly pressed on the first sealing strip (3).

6. The explosion-proof distribution box with good heat dissipation effect according to claim 4 or 5, characterized in that: The inlet of the ventilation hole (21) and the inlet of the heat dissipation hole (22) are provided with inclined surfaces (7) expanding outward on both sides.

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