Mining explosion-proof power supply device capable of rapidly dissipating heat

Abstract

The utility model relates to the technical field of mining power supplies, in particular to a mining flame-proof power supply device capable of rapidly dissipating heat, which comprises a flame-proof protection box, a flame-proof power supply is arranged in the flame-proof protection box, the flame-proof protection box is used for protecting the flame-proof power supply, and the flame-proof power supply is used for supplying power to connecting equipment; an air inlet and an air outlet are respectively formed in two opposite ends of the explosion-proof protection box; according to the self-cleaning type heat dissipation mechanism, the heat dissipation airflow purges the annular-belt-shaped filter screen in the direction from the air inlet to the annular cavity, so that dust cannot be extruded towards the interior of the annular-belt-shaped filter screen, and the probability that the dust blocks the interior of the annular-belt-shaped filter screen is effectively reduced; the problem that an existing self-cleaning heat dissipation structure for the mining explosion-proof power supply device is prone to being blocked in the cleaning process is solved, and it is guaranteed that heat dissipation airflow with enough air volume conducts heat dissipation on an explosion-proof power supply.

Description

Technical Field

[0001] The utility model relates to the technical field of mine power supplies, in particular to a mine flameproof power supply device capable of rapidly dissipating heat. Background Art

[0002] A mining-grade flameproof power supply is a specialized power supply designed specifically for flammable and explosive environments, such as coal mines. It features both flameproof and intrinsically safe performance, enabling safe use in explosive environments containing gas and coal dust. Currently, most mining-grade flameproof power supplies utilize a scraper-type self-cleaning heat dissipation structure to reduce operating temperatures. This structure utilizes a cooling fan for heat dissipation, a filter to remove dust from the cooling airflow, and a removable scraper to remove dust from the filter surface. While this structure dissipates heat while preventing the air inlet filter from clogging, the scraper pushes dust toward the filter surface during the process, where it can easily be squeezed into the filter holes. This can partially clog the filter, reducing the air intake and, in turn, reducing the fan's cooling effect on the power supply.

[0003] Therefore, a mine flameproof power supply device capable of rapid heat dissipation is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a mine flameproof power supply device that can quickly dissipate heat in order to solve the above problems, thereby improving the problem that the heat dissipation structure of the existing mine flameproof power supply device with self-cleaning function is easily blocked during the cleaning process, thereby reducing the heat dissipation effect of the power supply.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions, which are a mine-used flameproof power supply device capable of rapid heat dissipation, comprising: a flameproof protection box, which is provided with an air inlet and an air outlet; a mine-used flameproof power supply, which is installed inside the flameproof protection box; and a self-cleaning heat dissipation mechanism, which is installed inside the flameproof protection box.

[0006] Preferably, the self-cleaning heat dissipation mechanism includes: a fan arranged toward the air outlet; an annular filter screen arranged between the fan outlet and the air outlet for blocking dust carried by the fan when dissipating heat; and a ring-shaped filter screen connected to the annular filter screen for driving the annular filter screen to move relative to the fan, so that the annular filter screen and the area on the side opposite to the fan outlet are continuously switched. The self-cleaning heat dissipation mechanism uses the heat dissipation airflow to sweep the annular filter screen from the air inlet to the annular cavity, which will not squeeze the dust into the interior of the annular filter screen, effectively reducing the probability of dust being blocked inside the annular filter screen, and solving the problem that the heat dissipation structure of the existing self-cleaning mining explosion-proof power supply device is easily blocked during the cleaning process, so as to ensure that there is a sufficient amount of heat dissipation airflow to dissipate heat from the explosion-proof power supply.

[0007] Preferably, an annular cavity communicating with both the air inlet and the air outlet is provided on the surface of the explosion-proof protection box, and the annular belt filter is slidably connected to the inside of the annular cavity, and the annular cavity is used to limit the movement trajectory of the annular belt filter.

[0008] Preferably, the inner side of the endless belt filter is connected to four transmission shafts which are all rotatably connected to the annular cavity. The transmission shafts can enable the endless belt filter to run according to a preset trajectory.

[0009] Preferably, a servo motor is fixedly connected to the bottom of one of the transmission shafts, the servo motor is fixedly connected to the inside of the annular cavity, and the servo motor is used to actively drive the annular filter.

[0010] Preferably, a toothed belt is fixedly connected to the inner side of the endless belt filter, and a pulley that engages with the toothed belt is fixedly connected to the surface of the transmission shaft. The toothed belt and the pulley can reduce the probability of transmission slippage in the endless belt filter.

[0011] Preferably, the toothed belt and the pulley are both arranged below the air inlet and the air outlet, and the toothed belt and the pulley are both arranged inside the annular cavity.

[0012] Preferably, the self-cleaning heat dissipation mechanism further includes evenly distributed air guides, which are arranged between the air inlet and the air outlet.

[0013] Preferably, the flameproof power supply is arranged on the inner side of the air guide plate, and the horizontal cross-sectional shape of the contact portion between the flameproof power supply and the air guide plate is a matching rectangle.

[0014] The beneficial effects of the utility model are:

[0015] The self-cleaning heat dissipation mechanism uses the heat dissipation airflow to sweep the annular filter from the air inlet toward the annular cavity, which does not squeeze the dust into the interior of the annular filter, effectively reducing the probability of dust being blocked inside the annular filter, and solving the problem that the heat dissipation structure of the existing self-cleaning mining flameproof power supply device is easily blocked during the cleaning process, so as to ensure that there is a sufficient amount of heat dissipation airflow to dissipate heat for the flameproof power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the self-cleaning heat dissipation mechanism of the present invention;

[0019] Figure 4 It is a cross-sectional schematic diagram of the self-cleaning heat dissipation mechanism in the present utility model.

[0020] In the figure: 1. Explosion-proof protective box; 11. Air inlet; 12. Air outlet; 13. Annular cavity; 2. Explosion-proof power supply; 3. Self-cleaning heat dissipation mechanism; 31. Fan; 32. Belt filter; 33. Drive shaft; 34. Servo motor; 35. Toothed belt; 36. Pulley; 37. Air guide vane. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] When implementing: Figure 1-4 As shown, a mine flameproof power supply device that can quickly dissipate heat includes a flameproof protection box 1, which is provided with an air inlet 11 and an air outlet 12; a mine flameproof power supply 2, which is installed inside the flameproof protection box 1; and a self-cleaning heat dissipation mechanism 3, which is installed inside the flameproof protection box 1.

[0023] like Figure 2 、 Figure 3 and Figure 4 As shown, the self-cleaning heat dissipation mechanism 3 includes a fan 31 arranged toward the air outlet 12 .

[0024] In this embodiment, when the flameproof power supply 2 needs to dissipate heat quickly, as shown in the attached manual, Figure 2 As shown, the fan 31 is manually turned on, and the fan 31 draws outside air into the air inlet 11. The air inlet 11 guides the heat dissipation airflow to the flameproof power supply 2. The heat dissipation airflow takes away the heat dissipated by the flameproof power supply 2 in the process of passing through the surface of the flameproof power supply 2, so as to achieve the purpose of quickly dissipating the heat of the flameproof power supply 2. Finally, the heat dissipation airflow carrying heat is discharged to the outside along the air outlet 12.

[0025] like Figure 2 、 Figure 3 and Figure 4 As shown, an endless belt filter 32 is provided between the air outlet of the fan 31 and the air outlet 12, and is used to block the dust carried by the fan 31 when dissipating heat; and the endless belt filter 32 is connected to drive the endless belt filter 32 to move relative to the fan 31, so that the area on the side opposite to the air outlet of the fan 31 is continuously switched.

[0026] In this embodiment, during the normal operation of the fan 31, as shown in the attached manual, Figure 2 As shown, the endless filter 32 can filter and intercept dust in the heat dissipation airflow, which can keep the airflow entering the flameproof protection box 1 clean, thereby improving the heat dissipation effect of the flameproof power supply 2.

[0027] like Figure 2 、 Figure 3 and Figure 4 As shown, the surface of the flameproof protective box 1 is provided with an annular cavity 13 connected to both the air inlet 11 and the air outlet 12, and the annular belt filter 32 is slidably connected to the inside of the annular cavity 13; the inner side of the annular belt filter 32 is connected to four transmission shafts 33 that are rotatably connected to the annular cavity 13; the bottom of one of the transmission shafts 33 is fixedly connected to a servo motor 34, and the servo motor 34 is fixedly connected to the inside of the annular cavity 13; the self-cleaning heat dissipation mechanism 3 also includes evenly distributed air guide plates 37, which are arranged between the air inlet 11 and the air outlet 12; the flameproof power supply 2 is arranged on the inner side of the air guide plates 37, and the horizontal cross-sectional shapes of the contact parts of the flameproof power supply 2 and the air guide plates 37 are both matching rectangles;

[0028] In this embodiment, as shown in the attached specification Figure 3 As shown, manually start the servo motor 34, the servo motor 34 drives the transmission shaft 33 to rotate in the specified direction, and the transmission shaft 33 drives the endless belt filter 32 to rotate in the direction specified in the instruction manual. Figure 3 The endless belt filter 32 is shown to be driven along a motion trajectory, whereby a portion of the endless belt filter 32 covering the air inlet 11 and the air outlet 12 is automatically replaced.

[0029] like Figure 2 and Figure 4As shown, a toothed belt 35 is fixedly connected to the inner side of the endless belt filter 32, and a pulley 36 that meshes with the toothed belt 35 is fixedly connected to the surface of the transmission shaft 33; the toothed belt 35 and the pulley 36 are both arranged below the air inlet 11 and the air outlet 12, and the toothed belt 35 and the pulley 36 are both arranged inside the annular cavity 13.

[0030] In this embodiment, as shown in the attached specification Figure 4 As shown, the transmission shaft 33 drives the pulley 36 to rotate during the rotation process, and the pulley 36 engages the transmission toothed belt 35. The toothed belt 35 cooperates with the transmission shaft 33 to more stably transmit the endless belt filter 32, effectively reducing the probability of the endless belt filter 32 slipping during the transmission process.

[0031] When the utility model is in use: when it is necessary to clean the dust on the surface of the endless belt filter 32, as shown in the attached manual Figure 2 As shown, the belt filter 32 is manually driven. At this time, the portion of the belt filter 32 covering the air inlet 11 and the air outlet 12 is replaced. When the belt filter 32 with dust attached is driven to the position shown in the attached manual, Figure 2 When the outer side of the air outlet 12 is shown, the heat dissipation airflow discharged through the air outlet 12 can blow the annular filter 32 in the reverse direction, which will not squeeze the dust into the inside of the annular filter 32, effectively reducing the probability of dust blocking the inside of the annular filter 32, so as to ensure the smoothness of the heat dissipation airflow through the annular filter 32.

[0032] It should be noted that the explosion-proof protective box 1, explosion-proof power supply 2, fan 31, servo motor 34, toothed belt 35 and pulley 36 in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the fan 31 and servo motor 34 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0033] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mine flameproof power supply device capable of rapid heat dissipation, characterized in that: include: A flameproof protection box (1), wherein the flameproof protection box (1) is provided with an air inlet (11) and an air outlet (12); A mine flameproof power supply (2), the mine flameproof power supply (2) being installed inside the flameproof protection box (1); A self-cleaning heat dissipation mechanism (3) is installed inside the flameproof protection box (1); the self-cleaning heat dissipation mechanism (3) comprises: a fan (31) disposed toward the air outlet (12); an endless belt filter (32) disposed between the air outlet of the fan (31) and the air outlet (12) and used to block dust carried by the fan (31) when dissipating heat; The device is connected to the endless belt filter (32) and is used to drive the endless belt filter (32) to move relative to the fan (31), so that the area on the side of the endless belt filter (32) opposite to the air outlet of the fan (31) is continuously switched.

2. The rapid heat dissipation flameproof power supply device for mining according to claim 1, characterized in that: The surface of the flameproof protection box (1) is provided with an annular cavity (13) which is in communication with both the air inlet (11) and the air outlet (12); the annular belt filter (32) is slidably connected to the interior of the annular cavity (13); and the annular cavity (13) is used to limit the movement trajectory of the annular belt filter (32).

3. The rapid heat dissipation flameproof power supply device for mining according to claim 2, characterized in that: The inner side of the endless belt filter (32) is connected to four transmission shafts (33) which are all rotatably connected to the annular cavity (13). The transmission shafts (33) can enable the endless belt filter (32) to run according to a preset trajectory.

4. The rapid heat dissipation flameproof power supply device for mining according to claim 3, characterized in that: A servo motor (34) is fixedly connected to the bottom of one of the transmission shafts (33), and the servo motor (34) is fixedly connected to the inside of the annular cavity (13). The servo motor (34) is used to actively drive the endless belt filter (32).

5. The rapid heat dissipation flameproof power supply device for mining according to claim 3, characterized in that: The inner side of the endless belt filter (32) is fixedly connected to a toothed belt (35), and the surface of the transmission shaft (33) is fixedly connected to a pulley (36) that engages with the toothed belt (35) for transmission. The toothed belt (35) cooperates with the pulley (36) to reduce the probability of transmission slippage of the endless belt filter (32).

6. The rapid heat dissipation flameproof power supply device for mining according to claim 5, characterized in that: The toothed belt (35) and the pulley (36) are both arranged below the air inlet (11) and the air outlet (12), and the toothed belt (35) and the pulley (36) are both arranged inside the annular cavity (13).

7. The rapid heat dissipation flameproof power supply device for mining according to claim 1, characterized in that: The self-cleaning heat dissipation mechanism (3) further comprises evenly distributed air guides (37), wherein the air guides (37) are arranged between the air inlet (11) and the air outlet (12).

8. The rapid heat dissipation flameproof power supply device for mining according to claim 7, characterized in that: The flameproof power supply (2) is arranged on the inner side of the air guide piece (37), and the horizontal cross-sectional shapes of the contact parts of the flameproof power supply (2) and the air guide piece (37) are both matched rectangles.

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