Dry contact water-cooled relay group for coal mine safety monitoring

Abstract

The utility model relates to a dry contact water -cooling relay unit for coal mine safety monitoring, including heat dissipation base, still including the relay unit body of installation in heat dissipation base upper end, the fixed hole for being used for fixed is opened to heat dissipation base, the lower extreme of relay unit body is equipped with a plurality of radiating fins, and the radiating fin extends downward and embeds heat dissipation base inside, forms the heat conduction passage, the water -cooling assembly is covered in the outside of relay unit body, and water -cooling assembly surrounds relay unit body setting, and cooling medium flows in the flow channel in water -cooling assembly inside along the circumferential direction and axial direction of relay unit body continuously, the novel realizes the heat dissipation of multiple paths through the heat conduction cooperation of radiating fin and base and the surrounding cooling of water -cooling assembly, and the even dispersion heat load is realized, and the air interlayer between the inner and outer shell is simultaneously used as heat isolation barrier, and the heat transfer is restrained, and the shell surface temperature is effectively controlled, and the essential safety and operation stability of equipment in the inflammable environment of coal mine are enhanced.

Claims

1. A dry contact water-cooled relay group for coal mine safety monitoring, comprising a heat dissipation base (1); characterized in that: It also includes a relay body (3) installed on the upper end of the heat sink base (1), the heat sink base (1) has a fixing hole (2) for fixing, the lower end of the relay body (3) is provided with multiple heat sinks (4), the heat sinks (4) extend downward and are embedded in the heat sink base (1) to form a heat conduction path; a water cooling component is wrapped around the outside of the relay body (3). The water-cooling component is arranged around the relay assembly body (3). The cooling medium flows continuously in the flow channel inside the water-cooling component along the circumference and axial direction of the relay assembly body (3) and exchanges heat with the outer surface of the relay assembly body (3). The heat is transferred to the heat dissipation base (1) through the heat sink (4) and at the same time, it is transferred to the cooling medium flowing inside the water-cooling component through the interface between the relay assembly body (3) and the water-cooling component.

2. The dry contact water-cooled relay group for coal mine safety monitoring according to claim 1, characterized in that: The water-cooling assembly includes an inner shell (5) and an outer shell (9) disposed on a heat dissipation base (1). The inner shell (5) is disposed on the outer periphery of the relay assembly body (3) for supporting and fixing the cooling structure. The cooling pipe (6) is installed in a circumferential manner on the outer surface of the inner shell (5) and extends along its circumference and axial direction. The outer shell (9) is disposed outside the inner shell (5) to form physical protection for the cooling structure.

3. The dry contact water-cooled relay group for coal mine safety monitoring according to claim 2, characterized in that: The inner shell (5) is set close to the outer wall of the relay assembly body (3) to conduct the heat generated during the operation of the relay. A cavity-shaped gap is maintained between the inner shell (5) and the outer shell (9), which constitutes an air gap.

4. The dry contact water-cooled relay group for coal mine safety monitoring according to claim 3, characterized in that: The cooling pipe (6) is made of a high thermal conductivity metal material. Its pipe body is fixed to the outer surface of the inner shell (5) in a spiral path. A thermally conductive interface material is provided between the cooling pipe (6) and the inner shell (5).

5. The dry contact water-cooled relay group for coal mine safety monitoring according to claim 4, characterized in that: One end of the cooling pipe (6) is connected to a water outlet (7) for discharging the cooling medium that has absorbed heat, and the other end of the cooling pipe (6) is connected to a water inlet (8) for introducing low-temperature cooling medium. The water inlet (8) and the water outlet (7) are respectively located on opposite sides of the outer shell (9).

6. The dry contact water-cooled relay group for coal mine safety monitoring according to claim 5, characterized in that: The air gap is filled with inert gas, and a sealing process is used to keep the interior in a partial vacuum state.

7. The dry contact water-cooled relay group for coal mine safety monitoring according to claim 6, characterized in that: An explosion-proof valve is provided on the outer shell (9). When the pressure inside the equipment rises due to an abnormal situation, the explosion-proof valve can be activated at a preset pressure threshold to release the pressure inside the outer shell (9).

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