A coal mining machine electric control box provided with a serpentine three-dimensional heat dissipation water channel

Abstract

The application discloses a coal mining machine electric control box provided with a serpentine three-dimensional heat dissipation water channel, and relates to the field of heat dissipation of coal mining machine equipment. The electric control box comprises a water-cooled bottom plate one, a water-cooled bottom plate two, a water-cooled vertical plate one, a water-cooled vertical plate two and a water-cooled vertical plate three which are contained in the electric control box body. The water-cooled vertical plate one and the water-cooled vertical plate two are left and right vertical plates of a frequency converter cavity, the water-cooled vertical plate three is located between the frequency converter cavity and a transformer cavity, and the water-cooled bottom plate is mounted at the rear half of the electric control box. The serpentine three-dimensional heat dissipation water channel structure of the electric control box is good in material, the shell body will not be broken, an anticorrosive layer is brushed in the water channel, the water corrosion resistance of the shell body is greatly increased, the water channel is in a serpentine shape, the heat dissipation performance of the water channel is increased, and the heat emitted by part of cavities can be effectively relieved. The serpentine three-dimensional heat dissipation water channel structure of the electric control box is hiddenly mounted, the shell body is neat and beautiful in appearance, the structure design is reasonable, and the water flow heat dissipation capacity is enhanced.

Description

Technical Field

[0001] This application relates to the field of heat dissipation for coal mining equipment, and in particular to a coal mining machine electrical control box equipped with a serpentine three-dimensional heat dissipation channel. Background Technology

[0002] The electrical control box of a coal mining machine integrates a large number of electronic components, which continuously generate heat during operation. Traditional air-cooling methods are extremely inefficient in the harsh, dusty, and high-temperature environment of coal mines, failing to meet heat dissipation requirements and easily leading to overheating and damage to electronic components. This affects the stable operation of the coal mining machine, reduces production efficiency, increases maintenance costs and downtime of the electrical control box, and ultimately impacts the working efficiency of the coal mining machine.

[0003] The coal mining machine's electrical control box is the control center of the machine, containing electrical components that generate significant heat, such as transformers, frequency converters, and reactors. Because the coal mining machine operates underground, all electrical components within the control box must be housed in an explosion-proof enclosure, allowing the heat they generate to be dissipated to the outside environment only through the control box itself.

[0004] The superior water channel design effectively mitigates the heat dissipated by electronic components within the electrical control chamber. This reduces the failure rate of electronic devices inside the control box due to overheating, significantly improving the coal mining efficiency of the coal mining machine and increasing production efficiency. Utility Model Content

[0005] In order to significantly improve the coal mining efficiency and increase production efficiency of coal mining machines, this application provides a coal mining machine electrical control box equipped with a serpentine three-dimensional heat dissipation water channel.

[0006] The technical solution of the coal mining machine electrical control box with serpentine three-dimensional heat dissipation water channel provided in this application is as follows: A coal mining machine electrical control box with serpentine three-dimensional heat dissipation water channel includes a water-cooled base plate 1, a water-cooled base plate 2, a water-cooled vertical plate 1, a water-cooled vertical plate 2, and a water-cooled vertical plate 3 contained in the box body.

[0007] Among them, water-cooled vertical plate one and water-cooled vertical plate two are the left and right vertical plates of the inverter cavity, water-cooled vertical plate three is located between the inverter cavity and the transformer cavity, and water-cooled bottom plate is installed in the rear half of the electrical control box. A meandering water channel is opened below the transformer cavity. The box is provided with water-cooled bottom plate one first water channel, water-cooled bottom plate one second water channel, water-cooled bottom plate two first water channel, water-cooled bottom plate two second water channel, water-cooled bottom plate two third water channel and water-cooled bottom plate two fourth water channel respectively. A water-cooled top plate is installed above the inverter cavity in the box.

[0008] The water-cooled base plate 1, water-cooled base plate 2, and water-cooled vertical plate 3 are each provided with corresponding water inlets, holes 1, 2, 3, 4, outlets, holes 5, 6, 7, and 8.

[0009] By adopting the above technical solution, when water flows into the second water-cooled base plate, the water flows through the second water channel of the second water-cooled base plate. The second water channel still has a meandering shape. This water channel is mainly located below the transformer. This shape can transfer the heat dissipated by the transformer to the greatest extent and can effectively reduce the temperature of the cavity. After passing through this water channel, the water will enter the inlet hole six- of the third water-cooled vertical plate, flow into the water channel of the plate from here, and after passing through the bend water channel, flow out from the outlet hole seven-, and then enter the third water channel of the second water-cooled base plate and flow out from this channel. At this point, the water cooling heat dissipation of the enclosure is completed.

[0010] Preferably, the water-cooled base plate one, water-cooled base plate two, water-cooled vertical plate one, water-cooled vertical plate two and water-cooled vertical plate three are all provided with meandering serpentine water channels, and the water-cooled vertical plate two and water-cooled vertical plate one are respectively provided with holes nine, ten and eleven and twelve.

[0011] By adopting the above technical solution, meandering serpentine water channels are opened on water-cooled base plate one, water-cooled base plate two, water-cooled vertical plate one, water-cooled vertical plate two, and water-cooled vertical plate three, which facilitates heat dissipation.

[0012] Preferably, the water-cooled base plate-first water channel and the water-cooled base plate-second water channel cover the inverter cavity inside the housing, and the water-cooled top plate is provided with hole thirteen and hole fourteen respectively.

[0013] By adopting the above technical solution, the water flows through the first water channel of the water-cooled base plate 1 to hole 11- of the water-cooled vertical plate 1, then flows through the water channel of the water-cooled vertical plate 1 to hole 12-, and after ending from this path, it enters hole 13- of the water-cooled top plate, flows through the serpentine water channel and then flows out from hole 14- into hole 10- of the water-cooled vertical plate 2. After flowing out from the water channel of the water-cooled vertical plate 2, it will flow out from hole 9- and flow to the second water channel of the water-cooled base plate 1. After passing through water channel 2, it will flow out from the outlet of the water-cooled base plate 1, then enter the water-cooled base plate 2 and then flow out from the outlet of the fourth water channel of the water-cooled base plate 2.

[0014] Preferably, both the inverter and transformer cavities inside the enclosure are coated with a high-performance heat dissipation coating.

[0015] By adopting the above technical solution and setting a heat dissipation coating, heat dissipation can be assisted.

[0016] Preferably, the enclosure is made of QB material.

[0017] By adopting the above technical solution, this utility model uses QB as the material and forms a shell frame by welding. The structure is simple and firm, with strong corrosion resistance, high strength, good toughness, and good thermal conductivity. It can meet the requirements of the electrical control box working in the harsh environment of underground mines.

[0018] Preferably, the water-cooled base plate one, water-cooled base plate two, water-cooled vertical plate one, water-cooled vertical plate two, and water-cooled vertical plate three are spliced ​​together by mortise and tenon structure.

[0019] By adopting the above technical solution, the water channels are connected to each other through a mortise and tenon structure, and the water channels are hidden in the water channels. While ensuring the structural strength of the box, the water flow can circulate around the heat-generating components for heat dissipation. This design can greatly increase the heat dissipation effect.

[0020] Preferably, the water channels inside the tank are all concealed.

[0021] By adopting the above technical solution, the water channel is installed in a concealed manner, the shell has a neat and beautiful appearance, the structural design is reasonable, and the water flow heat dissipation capacity is enhanced.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The serpentine three-dimensional heat dissipation water channel structure of this utility model electrical control box uses high-quality materials, and the shell will not experience water channel breakage. An anti-corrosion layer is brushed inside the water channel, which greatly increases the shell's resistance to water corrosion. The water channel is serpentine, which increases the heat dissipation performance of the water channel and can effectively alleviate the heat dissipation of some cavities. The serpentine three-dimensional heat dissipation water channel structure of this utility model electrical control box has a hidden water channel installation, a neat and beautiful shell appearance, a reasonable structural design, and enhanced water flow heat dissipation capacity.

[0024] 2. The serpentine three-dimensional heat dissipation water channel structure of the electrical control box of this utility model has each water channel plate connected to each other by mortise and tenon structure, and the water channel is hidden in the water channel plate. While ensuring the structural strength of the box, the water flow can circulate around the heat-generating components for heat dissipation. This design can greatly increase the heat dissipation effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel according to an embodiment of this application.

[0026] Figure 2 This is a schematic diagram illustrating a partial structure of the water-cooled roof plate, as shown in the embodiments of this application.

[0027] Figure 3 This is a schematic diagram illustrating the three-part unfolded structure of the water-cooled vertical plate, which is the main feature of this application embodiment;

[0028] Figure 4 This is a schematic diagram illustrating the partially unfolded structure of the water-cooled vertical plate, which is the main feature of this application embodiment.

[0029] Figure 5 This is a schematic diagram illustrating a partially unfolded structure of a water-cooled vertical plate, as shown in the embodiments of this application.

[0030] Attached reference numerals: 1. Water-cooled base plate one; 2. Water-cooled base plate two; 3. Water-cooled vertical plate three; 4. Water-cooled vertical plate two; 5. Water-cooled vertical plate one; 6. Water-cooled top plate; 2-1. Water inlet; 2-2. Hole one; 2-3. Hole two; 2-4. Hole three; 2-5. Hole four; 2-6. Water outlet; 3-1. Hole five; 3-2. Hole six; 3-3. Hole seven; 3-4. Hole eight; 4-1. Hole nine; 4-2. Hole ten; 5-1. Hole eleven; 5-2. Hole twelve; 6-1. Hole thirteen; 6-2. Hole fourteen; 7. First water channel of water-cooled base plate one; 8. Second water channel of water-cooled base plate one; 9. First water channel of water-cooled base plate two; 10. Second water channel of water-cooled base plate two; 11. Third water channel of water-cooled base plate two; 12. Fourth water channel of water-cooled base plate two; 13. Cabinet. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0032] This application discloses an electrical control box for a coal mining machine equipped with a serpentine three-dimensional heat dissipation channel.

[0033] Reference Figure 1-3 A coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel includes an electrical control box body 13, a water-cooled top plate at the top of the electrical control box, a water-cooled bottom plate 1 and 2 at the bottom, and water-cooled vertical plates 1, 2, and 3 near the key heat dissipation cavity. The heat dissipation channel mechanism is set inside the box body 13. The two internal water-cooled plates can make the hot air in the box body 13 more fully transferred, which can not only effectively and quickly reduce the temperature of the box body, but also make the internal temperature of the box body 13 more uniform. It has a wide range of application prospects.

[0034] The water channel design of this utility model is located inside the bottom plate of the electrical control box, and has a meandering serpentine structure. This shape can increase the contact area and contact time between the water flow and the bottom plate, thereby improving the heat dissipation rate. The water channel starts from the water inlet on the rear side of the bottom plate, meanders along the length of the bottom plate to the other edge of the inverter cavity, and then turns back, repeating this process multiple times to form multiple parallel water flow channels. The channel segments are connected by a transition section to ensure that the water flow is smooth and evenly distributed throughout the bottom plate area and under the entire inverter cavity, maximizing the dissipation of heat generated by the inverter. The water channel is connected to the water inlet through the contactor cavity.

[0035] The cooling water channel mechanism includes water-cooled vertical plate 1 and water-cooled vertical plate 2 arranged as left and right vertical plates of the inverter cavity, water-cooled vertical plate 3 located between the inverter cavity and the transformer cavity, and water-cooled base plate 2 installed in the rear half of the electrical control box. It has a meandering water channel below the transformer cavity. The box 13 is provided with water-cooled base plate 1 first water channel 7, water-cooled base plate 1 second water channel 8, water-cooled base plate 2 first water channel 9, water-cooled base plate 2 second water channel 10, water-cooled base plate 2 third water channel 11 and water-cooled base plate 2 fourth water channel 12 respectively. A water-cooled top plate 6 is installed above the inverter cavity inside the box 13.

[0036] Among them, the water-cooled base plate 1, the water-cooled base plate 2, and the water-cooled vertical plate 3 are all provided with corresponding water inlets 2-1, holes 1-2-2, holes 2-3, holes 3-4, holes 4-5, water outlets 2-6, holes 5-1, holes 6-2, holes 7-3, and holes 8-4. The water-cooled base plate 1, the water-cooled base plate 2, the water-cooled vertical plate 1, the water-cooled vertical plate 2, and the water-cooled vertical plate 3 are all provided with meandering serpentine water channels. The water-cooled vertical plate 2 and the water-cooled vertical plate 1 are provided with holes 9-1, holes 10-4-2, holes 11-5-1, and holes 12-5-2, respectively.

[0037] The water inlet of the water-cooled base plate 2 is located on the left side of the housing 13. After the water flows in, it is divided into two paths. The first path of water first enters the hole 2-2 on the water-cooled vertical plate 2. After passing through the hole 2-2, it can enter the first water channel 7 of the water-cooled base plate 1 through the hole 3-1 on the water-cooled vertical plate 3. This water channel also presents a serpentine shape. This design can maximize the heat dissipation effect of the water flow.

[0038] After flowing through the first water channel 7 of the water-cooled base plate, the water will flow to hole 11 (5-1) of the water-cooled vertical plate 5. Then, it will flow through the water channel of the water-cooled vertical plate 1 to hole 12 (5-2). After ending from this channel, it will enter hole 13 (6-1) of the water-cooled top plate 6. After passing through the serpentine water channel, it will flow out from hole 14 (6-2) and enter hole 10 (4-2) of the water-cooled vertical plate 2. After flowing out from the water channel of the water-cooled vertical plate 2, it will flow out from hole 9 (4-1) and flow to the second water channel 8 of the water-cooled base plate 1. After passing through water channel 8, it will flow out from the outlet of the water-cooled base plate 1, then enter the water-cooled base plate 2, and then flow out from the outlet of the fourth water channel 12 of the water-cooled base plate 2.

[0039] Reference Figure 3-5 The cooling water channel mechanism also includes a water-cooled base plate 1-first water channel 7 and a water-cooled base plate 1-second water channel 8 covering the inverter cavity inside the enclosure 13. Holes 13-6-1 and 14-6-2 are respectively opened on the water-cooled top plate 6. The inverter and transformer cavities inside the enclosure 13 are coated with a high-performance heat dissipation coating. The enclosure 13 is made of Q355B material. The water-cooled base plate 1, water-cooled base plate 2, water-cooled vertical plate 5, water-cooled vertical plate 4, and water-cooled vertical plate 3 are spliced ​​together by mortise and tenon structure. The water channels inside the enclosure 13 are all installed in a concealed manner.

[0040] In this application, the waterway is 40mm wide and 12mm high, with a cross-sectional area of ​​480mm². 2 The water channels are wide, the water flow is strong, and the heat dissipation capacity is relatively good, which can effectively reduce the heat dissipation of the electrical control box.

[0041] In use, when water flows into the water-cooled base plate 2, the water flows through the second water channel 10 of the water-cooled base plate 2. The second water channel 10 still has a meandering shape. This water channel is mainly located below the transformer. This shape can transfer the heat dissipated by the transformer to the greatest extent and can effectively reduce the temperature of the cavity. After passing through this water channel, the water will enter the inlet hole 3-2 of the water-cooled vertical plate 3, and flow into the water channel of the plate from here. After passing through the bend water channel, it flows out from the outlet hole 3-3, and then enters the third water channel 11 of the water-cooled base plate 2 and flows out from this channel. At this point, the water cooling of the enclosure 13 is completed.

[0042] The implementation principle of the coal mining machine electrical control box with a serpentine three-dimensional heat dissipation water channel in this application embodiment is as follows: When in use, water flows in from the inlet 2-1 of the water-cooled bottom plate 2, flows through the first water channel and then enters the hole 3-1 on the water-cooled vertical plate 3 and then enters the water-cooled bottom plate 1. It flows through the first water channel and enters the hole 11 5-1 on the water-cooled vertical plate 1, that is, enters the water channel of the water-cooled vertical plate 1, and then flows out from the hole 12 5-2. It enters the water-cooled top plate 6 and then flows through the hole 14 6-2 on the top plate and into the hole 10 4-2 on the water-cooled vertical plate 2. Finally, it flows out through the outlet 2-6 on the fourth water channel 12 of the water-cooled bottom plate 2. When the water flows in through the second water channel 10 of the water-cooled bottom plate 2, it enters the cooling water channel of the water-cooled vertical plate 3 after passing through the meandering water channel under the transformer cavity and then flows out through the third outlet on the water-cooled bottom plate 2.

[0043] After the water flows into the water-cooled base plate 2, it flows through the second water channel 10 of the water-cooled base plate 2. The second water channel 10 still has a meandering shape. This water channel is mainly located below the transformer. This shape can transfer the heat dissipated by the transformer to the greatest extent and can effectively reduce the temperature of the cavity. After passing through this water channel, the water will enter the inlet hole 6 3-2 of the water-cooled vertical plate 3, and flow into the water channel of the plate from here. After passing through the bend water channel, it flows out from the outlet hole 7 3-3, and then enters the third water channel 11 of the water-cooled base plate 2 and flows out from this channel. At this point, the water cooling of the enclosure 13 is completed.

[0044] The two water cooling methods mentioned above make extensive use of a new type of water channel structure, namely: the water channel plates are spliced ​​together by mortise and tenon structure, and the joints are chamfered to facilitate welding. This structure ensures the structural strength of the box while greatly increasing the flow of water, so that the water flow is no longer just a traditional two-dimensional flow, but the water cooling is more three-dimensional and the cooling effect is more prominent.

[0045] In summary, the serpentine three-dimensional heat dissipation water channel structure for the electrical control box of a coal mining machine described in this utility model can save a lot of space compared with air cooling, and has a neat and beautiful appearance. The high heat capacity ratio of water can absorb and remove the large amount of heat generated by the electrical control box, improve the box life and enhance the reliability of the equipment.

[0046] The water channel layout is compact, the structure is simple and easy to maintain. The water channel loop adopts a detour design, which prolongs the residence time of the water flow on the heating element, improves the cooling efficiency, and makes the water flow have a more efficient heat exchange ratio.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coal mining machine electrical control box with a serpentine three-dimensional heat dissipation water channel, comprising a water-cooled base plate one (1), a water-cooled base plate two (2), a water-cooled vertical plate one (5), a water-cooled vertical plate two (4), and a water-cooled vertical plate three (3) contained in the electrical control box body (13). in, Water-cooled vertical plate one (1) and water-cooled vertical plate two (2) are the left and right vertical plates of the inverter cavity. Water-cooled vertical plate three (3) is located between the inverter cavity and the transformer cavity. Water-cooled bottom plate (2) is installed in the rear half of the electrical control box. A meandering water channel is opened below the transformer cavity. The box (13) is provided with water-cooled bottom plate one first water channel (7), water-cooled bottom plate one second water channel (8), water-cooled bottom plate two first water channel (9), water-cooled bottom plate two second water channel (10), water-cooled bottom plate two third water channel (11) and water-cooled bottom plate two fourth water channel (12). Water-cooled top plate (6) is installed above the inverter cavity in the box (13). The water-cooled base plate 1 (1), water-cooled base plate 2 (2) and water-cooled vertical plate 3 (3) are provided with corresponding water inlet (2-1), hole 1 (2-2), hole 2 (2-3), hole 3 (2-4), hole 4 (2-5), water outlet (2-6), hole 5 (3-1), hole 6 (3-2), hole 7 (3-3) and hole 8 (3-4).

2. The coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel as described in claim 1, characterized in that: The water-cooled base plate 1 (1), water-cooled base plate 2 (2), water-cooled vertical plate 1 (5), water-cooled vertical plate 2 (4) and water-cooled vertical plate 3 (3) are all provided with meandering serpentine water channels. The water-cooled vertical plate 2 (4) and water-cooled vertical plate 1 (5) are respectively provided with hole 9 (4-1), hole 10 (4-2), hole 11 (5-1) and hole 12 (5-2).

3. The coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel as described in claim 1, characterized in that: The water-cooled base plate first water channel (7) and the water-cooled base plate second water channel (8) cover the inverter cavity inside the housing (13), and the water-cooled top plate (6) is provided with hole thirteen (6-1) and hole fourteen (6-2) respectively.

4. The coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel as described in claim 1, characterized in that: The inverter and transformer cavities inside the enclosure (13) are coated with a high-performance heat dissipation coating.

5. The coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel according to claim 4, characterized in that: The enclosure (13) is made of Q355B material.

6. The coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel as described in claim 1, characterized in that: The water-cooled base plate 1 (1), water-cooled base plate 2 (2), water-cooled vertical plate 1 (5), water-cooled vertical plate 2 (4), and water-cooled vertical plate 3 (3) are connected to each other by mortise and tenon joints.

7. The coal mining machine electrical control box with a serpentine three-dimensional heat dissipation channel according to claim 1, characterized in that: The water channels inside the box (13) are all concealed.

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