Electric control box with wireless receiving device

Abstract

The invention discloses an electric control box with a wireless receiving device, and relates to the field of electric equipment shells, the electric control box comprises an outer box with an upward opening and an inner box arranged in the outer box, a plurality of partition plates used for installing electric control components are integrally arranged in the inner box, cooling holes are formed in the partition plates, and the cooling holes penetrate through the two sides of the inner box; a liquid injection cavity is formed between the inner box and the outer box, located on one side of the inner box and communicated with one ends of the multiple cooling holes, an interlayer cavity is formed between the inner box and the outer box and communicated with the ends, away from the liquid injection cavity, of the multiple cooling holes, a box door is installed at an opening of the outer box, and an annular insertion plate is fixed to the inner side of the box door. An overflow opening is formed in one side of the outer box, the height of the overflow opening relative to the ground is larger than that of the lower end of the annular inserting plate relative to the ground, a liquid storage box is arranged on one side of the outer box, and a two-way pump is connected between the liquid storage box and the liquid injection cavity through a pipeline. The requirements of high heat dissipation performance and high sealing performance can be met at the same time.

Description

Technical Field

[0001] The present application relates to the field of electrical equipment casings, and in particular to an electrical control box with a wireless receiving device. Background Art

[0002] Coal mining machine is one of the main equipment for mechanization and modernization of coal mine production. The mechanized coal mining of coal mining machine can greatly improve the efficiency of coal mining, and at the same time greatly improve the safety of personnel, reduce the degree of fatigue of personnel, and achieve the purpose of high efficiency of coal mining, high production output and high safety of personnel. In order to realize the automatic control of coal mining machine, during the operation of coal mining machine, each component needs to establish a network connection to realize the data transmission and link of each unit. If the wired connection method such as CAN bus connection is adopted, the line layout interference is large and the maintenance is more difficult. Therefore, most coal mining machines are equipped with remote control antennas for automatic control of coal mining machines.

[0003] For the electrical control box of a coal mining machine, the most important design indicator is explosion-proof performance. Since the electrical control box of a coal mining machine may be in a flammable and explosive environment, and the electronic components in the electrical control box of a coal mining machine are prone to generate electric sparks when working, it is necessary to avoid electric sparks igniting the gas outside the electrical control box to achieve explosion-proof performance.

[0004] At present, common electric control boxes on the market all use sealing strips to isolate the inside of the electric control box from the outside to achieve explosion-proof purposes, but the sealing strips have problems of aging and deformation and are not reliable enough. Summary of the invention

[0005] In order to improve the explosion-proof performance of a power distribution cabinet, the present application provides an electric control box with a wireless receiving device.

[0006] The electric control box with a wireless receiving device provided in this application adopts the following technical solution: 14. The method of claim 13 wherein the cooling fan is constructed so that the cooling fan has a plurality of openings that are located adjacent to the cooling fan. The cooling fan has a plurality of openings that are located adjacent to the cooling fan. The cooling fan has a plurality of openings that are located adjacent to the cooling fan.

[0007] By adopting the above technical solution, when in use, the electronic control components are installed on the partition and the electrical connection between the electronic control components is completed, and then the box door is covered; after the electronic control box is used, the two-way pump is started to send the coolant in the liquid storage tank into the liquid filling cavity, and the coolant passes through the cooling hole to drive the heat on the partition, and the coolant flowing out of the cooling hole flows to the interlayer cavity. The liquid level in the interlayer cavity continues to rise until it reaches the overflow port, and the coolant flows back to the liquid storage tank; in the present application, the coolant is used to take away the heat of the partition on the one hand to achieve the cooling effect, and at the same time, it is also used as a liquid seal medium to improve the sealing between the box door and the inner box to prevent external gas from entering the inner box.

[0008] Preferably, a panel is fixed to the inner wall of the outer box, and the panel, the outer wall of the inner box and the inner wall of the outer box form the liquid injection cavity.

[0009] By adopting the above technical solution, a liquid injection cavity is formed by setting a surrounding plate.

[0010] Preferably, a guide plate is fixed to the inner wall of the outer box, and the guide plate is used to guide the liquid flowing out of the cooling hole to the bottom of the interlayer cavity. The guide plate is penetrated by a through hole at a position close to the bottom of the interlayer cavity.

[0011] By adopting the above technical solution, the flow path of the coolant in the interlayer cavity is increased, which is beneficial for the temperature of the coolant to be transferred to the surrounding air.

[0012] Preferably, the inner box is inserted into the outer box.

[0013] By adopting the above technical solution, since most of the inner box is immersed in the coolant, under the action of buoyancy, the sealing ring is pressed tightly at the opening of the inner box, thereby further playing a sealing role.

[0014] Preferably, a plurality of guide plates for guiding the insertion of the inner box are fixed to the inner wall of the outer box.

[0015] By adopting the above technical solution, it is convenient to insert the inner box into the outer box.

[0016] Preferably, a sealing ring that cooperates with the inner box opening is fixed to the inner wall of the box door.

[0017] By adopting the above technical solution, the sealing performance is improved.

[0018] Preferably, an antenna and a cable introduction portion are provided on the top of the box door.

[0019] By adopting the above technical solution, wireless control of the electric control box and cable introduction and export are realized.

[0020] Preferably, a plurality of locks are provided between the box door and the outer box.

[0021] By adopting the above technical solution, the box door is locked by using a lock catch.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. During use, the height of the coolant is greater than the lower end of the annular plug plate, and a liquid seal is used to prevent external gas from entering the inner box; 2. Since most of the inner box is immersed in the coolant, the opening of the inner box is pressed against the sealing ring under the action of buoyancy, which further plays a sealing role; 3. The cooling liquid is used to improve both the sealing performance and the heat dissipation performance; in this application, the cooling liquid is used to take away the heat of the partition to cool the electric control box, and is also used for liquid sealing to improve the sealing performance; 4. Convenient for maintenance; when performing maintenance, unlock multiple locks, and the inner box will lift up the box door under the action of buoyancy, making it convenient to remove the box door; after completing the maintenance, start the two-way pump to pump the coolant in the interlayer cavity into the liquid storage tank, the coolant level in the interlayer cavity will decrease, and the inner box will fall to the bottom of the outer box, and finally cover the box door and lock the locks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an electric control box with a wireless receiving device according to an embodiment of the present application; Figure 2 This is a cross-sectional view of an electric control box with a wireless receiving device according to an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the inner box in the embodiment of the present application; Figure 4 This is a schematic diagram of the structure of the outer box in the embodiment of the present application. Figure 1 (mainly showing the guide plate structure); Figure 5 This is a schematic diagram of the structure of the outer box in the embodiment of the present application. Figure 2 (mainly showing the hoarding structure); Figure numerals: 1. outer box; 2. inner box; 3. partition; 4. cooling hole; 5. liquid injection chamber; 7. box door; 8. annular plug plate; 9. overflow port; 10. liquid storage tank; 11. two-way pump; 12. enclosure; 13. guide plate; 14. through hole; 15. guide plate; 16. sealing ring; 17. antenna; 18. cable entry part; 19. lock; 20. support foot; 21. L-shaped plate; 22. horizontal connecting plate; 23. pipeline; 24. end guide plate; 25. side guide plate. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0025] The embodiment of the present application discloses an electric control box with a wireless receiving device.

[0026] Reference Figure 1 and Figure 2 , an electric control box with a wireless receiving device, comprising an outer box 1 with an opening facing upward and an inner box 2 plugged into the outer box 1, a plurality of supporting feet 20 are installed at the bottom of the outer box 1, referring to Figure 2 and Figure 3 In the inner box 2, a plurality of partitions 3 for mounting electronic control components are fixed integrally. During use, the surface of the partition 3 is coated with thermal conductive silicone grease to facilitate the heat of the electronic control components to be transferred to the partition 3. The partition 3 is provided with holes to facilitate the mounting of electronic control components on the partition 3. The partition 3 is provided with cooling holes 4, which run through both sides of the inner box 2. Figure 2 and Figure 5 A panel 12 is fixed to the inner wall of the outer box 1. The panel 12 may be circular, rectangular, elliptical, etc. In the present embodiment, the panel 12 is rectangular in design. The panel 12, the outer wall of the inner box 2 and the inner wall of the outer box 1 form a liquid injection cavity 5. The liquid injection cavity 5 is located on one side of the inner box 2. The liquid injection cavity 5 is connected to one end of the plurality of cooling holes 4.

[0027] Reference Figure 2 and Figure 4 An interlayer cavity is also provided between the inner box 2 and the outer box 1. The interlayer cavity is communicated with one end of the plurality of cooling holes 4 away from the injection cavity 5. A guide plate 13 is provided in the interlayer cavity. The guide plate 13 is used to guide the liquid flowing out of the cooling hole 4 to the bottom of the interlayer cavity. The guide plate 13 is fixed to the inner wall of the outer box 1. The guide plate 13 includes two L-shaped plates 21 and a horizontal connecting plate 22. The horizontal connecting plate 22 connects the tops of the two L-shaped plates 21. One end of the plurality of cooling holes 4 away from the injection cavity 5 is located between the two L-shaped plates 21. The upper part of the L-shaped plate 21 is used to limit the horizontal position of the inner box 2. The lower part of the L-shaped plate 21 is used to support the inner box 2. A through hole 14 is penetrated through the side of the lower part of the L-shaped plate 21 away from the inner box 2.

[0028] Reference Figure 1 and Figure 2A box door 7 is installed at the opening of the outer box 1, and an antenna 17 and a cable introduction part 18 are arranged on the top of the box door 7. A plurality of locks 19 for fixing the box door 7 are installed between the box door 7 and the outer box 1. An annular plug plate 8 for inserting into the interlayer cavity is fixed on the inner side of the box door 7. A sealing ring 16 matching the opening of the inner box 2 is fixed on the inner wall of the box door 7. The sealing ring 16 is located in the annular plug plate 8. An overflow port 9 is opened on the side of the outer box 1 away from the liquid injection cavity 5. The height of the overflow port 9 relative to the ground is greater than the height of the lower end of the annular plug plate 8 relative to the ground. A liquid storage tank 10 for collecting liquid flowing out of the overflow port 9 is installed on the side of the outer box 1 close to the overflow port 9. A two-way pump 11 is connected between the liquid storage tank 10 and the liquid injection cavity 5 through a pipeline 23. The connection between the pipeline 23 and the liquid storage tank 10 is located at the bottom of the liquid storage tank 10, and the connection between the pipeline 23 and the liquid injection cavity 5 is also located at the bottom of the liquid injection cavity 5.

[0029] Reference Figure 2 and Figure 4 A plurality of guide plates 15 for guiding the insertion of the inner box 2 are fixed to the inner wall of the outer box 1. The guide plates 15 include end guide plates 24 located at both ends of the outer box 1 and side guide plates 25 located at both sides of the outer box 1. The end guide plates 24 and the side guide plates 25 are both provided with guiding slopes, wherein the side guide plates 25 on both sides are respectively fixed to the enclosure 12 and the guide plate 13 at the same time to improve the fixing strength of the enclosure 12 and the guide plate 13.

[0030] The implementation principle of an electric control box with a wireless receiving device in the embodiment of the present application is as follows: when in use, the electric control components are installed on the partition 3 and the electrical connection between the electric control components is completed, and then the inner box 2 is inserted into the outer box 1, and then the box door 7 is covered and fixed by the lock 19; After the electric control box is used, the two-way pump 11 is started to send the coolant in the liquid storage tank 10 into the liquid injection chamber 5. The coolant passes through the cooling hole 4, driving the heat on the partition 3. The coolant flowing out of the cooling hole 4 flows to the bottom of the interlayer cavity under the guidance of the guide plate 13, and then flows to the two ends of the bottom of the interlayer cavity through the through hole 14. The liquid level in the interlayer cavity continues to rise until it reaches the overflow port 9, and the coolant flows back to the liquid storage tank 10.

[0031] An electric control box with a wireless receiving device according to an embodiment of the present application has at least the following beneficial effects: First, the sealing performance is good, which effectively prevents the air outside the electric control box from entering the inner box 2; on the one hand, during use, the height of the coolant is greater than the lower end of the annular plug plate 8, and a liquid seal is adopted to prevent the outside gas from entering the inner box 2. On the other hand, since most of the inner box 2 is immersed in the coolant, under the action of buoyancy, the opening of the inner box 2 is pressed tightly against the sealing ring 16, which further plays a sealing role; Secondly, the cooling liquid is used to improve both the sealing performance and the heat dissipation performance. In the present application, the cooling liquid is used to take away the heat of the partition 3 to cool the electric control box, and is also used for liquid sealing to improve the sealing performance. Third, it is convenient for maintenance; when performing maintenance, multiple locks 19 are unlocked, and the inner box 2 lifts up the box door 7 under the action of buoyancy, making it convenient to remove the box door 7; after completing the maintenance, the two-way pump 11 is started to pump the coolant in the interlayer cavity into the liquid storage tank 10, the coolant level in the interlayer cavity is lowered, and the inner box 2 falls to the bottom of the outer box 1, and finally the box door 7 is covered and the locks 19 are locked.

[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric control box with a wireless receiving device, Features: The invention comprises an outer box (1) with an opening facing upward and an inner box (2) arranged in the outer box (1); a plurality of partitions (3) for mounting electronic control components are integrally arranged in the inner box (2); cooling holes (4) are arranged in the partitions (3); the cooling holes (4) run through both sides of the inner box (2); a liquid injection cavity (5) is arranged between the inner box (2) and the outer box (1); the liquid injection cavity (5) is located on one side of the inner box (2); the liquid injection cavity (5) is communicated with one end of the plurality of cooling holes (4); an interlayer cavity is arranged between the inner box (2) and the outer box (1); the interlayer cavity is communicated with the plurality of cooling holes (4); The cooling hole (4) is connected to one end away from the liquid injection cavity (5); a box door (7) is installed at the opening of the outer box (1); an annular plug plate (8) for inserting into the interlayer cavity is fixed on the inner side of the box door (7); an overflow port (9) is opened on one side of the outer box (1); the height of the overflow port (9) relative to the ground is greater than the height of the lower end of the annular plug plate (8) relative to the ground; a liquid storage tank (10) for collecting liquid flowing out of the overflow port (9) is arranged on one side of the outer box (1); a two-way pump (11) is connected between the liquid storage tank (10) and the liquid injection cavity (5) via a pipeline (23).

2. An electric control box with a wireless receiving device according to claim 1, Features: A surrounding plate (12) is fixed to the inner wall of the outer box (1), and the surrounding plate (12), the outer wall of the inner box (2) and the inner wall of the outer box (1) form the liquid injection cavity (5).

3. An electric control box with a wireless receiving device according to claim 2, Features: A guide plate (13) is fixed to the inner wall of the outer box (1), and the guide plate (13) is used to guide the liquid flowing out of the cooling hole (4) to the bottom of the interlayer cavity. The guide plate (13) is provided with a through hole (14) at a position close to the bottom of the interlayer cavity.

4. An electric control box with a wireless receiving device according to claim 3, Features: The inner box (2) is inserted into the outer box (1).

5. An electric control box with a wireless receiving device according to claim 4, Features: A plurality of guide plates (15) for guiding the insertion of the inner box (2) are fixed to the inner wall of the outer box (1).

6. An electric control box with a wireless receiving device according to claim 5, Features: A sealing ring (16) is fixed on the inner wall of the box door (7) and matches the opening of the inner box (2).

7. An electric control box with a wireless receiving device according to claim 1, Features: An antenna (17) and a cable introduction portion (18) are provided on the top of the box door (7).

8. An electric control box with a wireless receiving device according to claim 1, Features: A plurality of locks (19) are provided between the box door (7) and the outer box (1).

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