Mining intrinsic safety type controller

Abstract

The utility model provides a mining intrinsic safety type controller, comprising a housing which is provided with an accommodating cavity used for accommodating electrical elements; the air inlet pipe is provided with a through hole for air circulation, the air inlet pipe extends in the length direction of the shell and penetrates through the shell, so that the first end and the second end, oppositely arranged in the length direction of the air inlet pipe, of the air inlet pipe are both located outside the containing cavity, the part, located in the containing cavity, of the air inlet pipe is provided with air inlet holes communicating with the through hole, and the air inlet holes communicate with the containing cavity; the first end is provided with an air inlet mechanism, the second end is provided with a blocking mechanism, a filtering mechanism is arranged in the through hole and used for filtering air passing through the through hole, the exhaust pipe is arranged on the shell and provided with an exhaust hole communicated with the containing cavity, the exhaust pipe and the air inlet pipe are oppositely arranged in the height direction of the shell, and the exhaust pipe is located above the air inlet pipe. In this way, the external air is filtered through the filtering mechanism installed in the air inlet pipe, and then heat dissipation is conducted through the filtered air.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the intrinsically safe controller technical field, especially a mine intrinsically safe controller is provided. BACKGROUND

[0002] The controller is the main device that controls the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to the predetermined sequence, which is composed of a program counter, an instruction register, an instruction decoder, a time sequence generator and an operation controller, and it is the "decision mechanism" that issues commands, that is, it coordinates and commands the operation of the entire computer system, wherein, the intrinsically safe type is also called the intrinsically safe type, and it is the safest explosion-proof type among all explosion-proof types, and the intrinsically safe product cannot cause the explosion of the flammable and explosive gas in the surrounding environment due to internal short circuit or short circuit, in the related art, the mine intrinsically safe controller is mainly applied to the underground scene, and is responsible for controlling the normal operation of the related devices, wherein, in order to ensure that a large amount of heat generated by the related electronic circuits and electrical elements of the mine intrinsically safe controller can be discharged in time after long-time work, a heat dissipation mechanism is installed on the mine intrinsically safe controller to slow down the aging speed of the electrical elements caused by high temperature, thereby prolonging the service life of the mine intrinsically safe controller, however, due to the complex situation in the mine and a large amount of dust impurities generated in the operation process, the dust impurities can enter the inside of the mine intrinsically safe controller through the heat dissipation mechanism, and when a large amount of dust accumulates on the electronic elements, the working stability of the mine intrinsically safe controller is affected, and the service life thereof is shortened. SUMMARY

[0003] Therefore, the utility model aims at providing a mine intrinsically safe controller to solve the problem that dust impurities enter the inside of the mine intrinsically safe controller through the heat dissipation mechanism, and at least partially solve the problems in the related art.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A mine intrinsically safe controller, comprising:

[0006] A shell having a receiving cavity for receiving electrical elements;

[0007] An air inlet pipe having a through hole for gas flow, the air inlet pipe extends through the shell along the length direction of the shell, so that the first end and the second end of the air inlet pipe relatively arranged along the length direction of the air inlet pipe are both located outside the receiving cavity, the part of the air inlet pipe located in the receiving cavity is provided with an air inlet hole communicated with the through hole, the air inlet hole is communicated with the receiving cavity, the first end is provided with an air inlet mechanism, the second end is provided with a plugging mechanism, and the through hole is provided with a filtering mechanism for filtering the air passing through the through hole.

[0008] An exhaust pipe is arranged on the shell and has an exhaust hole communicating with the receiving cavity, the exhaust pipe is arranged opposite to the air inlet pipe along the height direction of the shell and the exhaust pipe is above the air inlet pipe.

[0009] Further, the filter mechanism comprises a filter cartridge and a cover plate, the filter cartridge is configured as a hollow pipe, one end of the filter cartridge is fixedly connected with the cover plate, the other end of the filter cartridge is provided with a filter opening, and the inner wall of the air inlet pipe is provided with an annular table abutting against the filter cartridge.

[0010] Further, the filter mechanism further comprises a guide column, the guide column is fixedly connected to the outer wall surface of the filter cartridge, the air inlet pipe is provided with a guide groove corresponding to the guide column, and the guide groove communicates with the through hole.

[0011] Further, the annular table is provided with an embedded groove for inserting part of the filter cartridge, and the bottom surface of the embedded groove is provided with a rubber pad.

[0012] Further, the plugging mechanism comprises a ring plate, a plugging plate, a fixing rod, a rotating sleeve, a screw rod and a nut.

[0013] The second end of the air inlet pipe is fixedly connected with the ring plate, the ring plate is provided with a first groove, the fixing rod is fixedly connected in the first groove, the rotating sleeve is rotationally connected to the fixing rod, the screw rod is fixedly connected to the rotating sleeve, the nut is threadedly connected with the screw rod, and the plugging plate is provided with a second groove corresponding to the first groove.

[0014] Further, the number of the first grooves and the second grooves is equal and both are multiple.

[0015] Further, a sealing ring is arranged between the plugging plate and the ring plate.

[0016] Further, the plugging plate is provided with an abutting block abutting against the cover plate, and the abutting block is arranged at the central part of the plugging plate.

[0017] Further, the air inlet mechanism is configured as a fan.

[0018] Further, an exhaust mechanism is arranged in the exhaust hole of the exhaust pipe, and the exhaust mechanism is configured as a fan.

[0019] Through the above technical solution, the housing houses the electrical components through the storage cavity, ensuring the normal operation of the electrical components and preventing damage to the electrical components from dust, moisture, or other external interference. At the same time, an air inlet pipe and an exhaust pipe are provided on the housing, with the exhaust pipe located above the air inlet pipe. The opposite arrangement of the two optimizes the airflow path, ensuring that the airflow can be smoothly discharged from the storage cavity, thereby improving heat dissipation efficiency. The filter mechanism installed in the through hole of the air inlet pipe can filter the outside air flowing into the through hole from the first end. That is, after the outside air enters the through hole through the air inlet mechanism installed at the first end, it is filtered by the filter mechanism, so that the dust and impurities it carries are effectively filtered out. The filtered gas flows into the storage cavity through the air inlet hole on the air inlet pipe, which can fully contact the electrical components in the storage cavity. With the flow of gas, the heat generated by the electrical components is carried away. While reducing the temperature of the electrical components in the storage cavity, it can also effectively prevent dust and impurities in the outside air from entering the storage cavity, extending the service life of the controller and improving the operational stability and safety of the intrinsically safe controller for mining in the complex environment of the mine. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the controller at one angle provided in an exemplary embodiment of this disclosure;

[0022] Figure 2 This is a schematic diagram of the controller provided in an exemplary embodiment of this disclosure from another angle;

[0023] Figure 3 This is a schematic diagram of the internal structure of the storage cavity provided in an exemplary embodiment of this disclosure;

[0024] Figure 4 This is a schematic diagram of the structure of the intake pipe provided in an exemplary embodiment of this disclosure;

[0025] Figure 5 This is a schematic diagram of the structure of the sealing plate sealing onto the ring plate according to an exemplary embodiment of this disclosure;

[0026] Figure 6 This is a schematic diagram of the internal structure of the through hole of the air intake pipe provided in an exemplary embodiment of this disclosure;

[0027] Figure 7 This is a schematic diagram of the structure of the filtering mechanism provided in an exemplary embodiment of this disclosure;

[0028] Figure 8 is a structural schematic view of the air inlet pipe when the blocking plate is not installed in the exemplary embodiment of the present disclosure;

[0029] Figure 9 is a structural schematic view of the blocking plate in the exemplary embodiment of the present disclosure.

[0030] Legend:

[0031] 1, housing; 101, receiving cavity; 2, air inlet pipe; 201, through hole; 202, air inlet hole; 203, ring table; 2031, embedded groove; 204, guide groove; 3, blocking mechanism; 301, ring plate; 3011, first groove; 302, blocking plate; 3021, second groove; 303, fixed rod; 304, rotating sleeve; 305, screw; 306, nut; 4, filtering mechanism; 401, filter cartridge; 4011, filter port; 402, cover plate; 403, guide column; 5, exhaust pipe; 6, abutting block. DETAILED DESCRIPTION

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] The utility model discloses below will refer to the drawings and combine the embodiment to explain in detail.

[0036] In the specific embodiment provided by the utility model, a mine intrinsic safety controller is provided, as shown by reference Figures 1 to 9 The mine intrinsic safety controller includes a shell 1, an air inlet pipe 2, an air outlet pipe 5, an air inlet mechanism and a filtering mechanism 4, wherein the shell 1 has a receiving cavity 101 for receiving electrical components; the air inlet pipe 2 has a through hole 201 for gas flow, and the air inlet pipe 2 extends along the length direction of the shell 1 and is arranged through the shell 1, so that the first end and the second end of the air inlet pipe 2 arranged opposite along the length direction of the air inlet pipe 2 are both located outside the receiving cavity 101, and the part of the air inlet pipe 2 located in the receiving cavity 101 is provided with an air inlet hole 202 communicated with the through hole 201, the air inlet hole 202 is communicated with the receiving cavity 101, the air inlet mechanism is installed on the first end, the plugging mechanism 3 is installed on the second end, and the filtering mechanism 4 is arranged in the through hole 201 to filter the air passing through the through hole 201; the air outlet pipe 5 is arranged on the shell 1 and has an air outlet hole communicated with the receiving cavity 101, and the air outlet pipe 5 is arranged opposite to the air inlet pipe 2 along the height direction of the shell 1 and above the air inlet pipe 2.

[0037] Through the above technical scheme, the shell 1 receives the electrical components through the receiving cavity 101 to ensure the normal work of the electrical components and avoid damage of dust, moisture or other external interference to the electrical components, meanwhile, the air inlet pipe 2 and the air outlet pipe 5 are arranged on the shell 1, the air outlet pipe 5 is above the air inlet pipe 2, and the opposite arrangement of the two optimizes the flow path of the air flow to ensure that the air flow can be smoothly discharged from the receiving cavity 101, thereby improving the heat dissipation efficiency, the filtering mechanism 4 installed in the through hole 201 of the air inlet pipe 2 can filter the external air flowing into the through hole 201 from the first end, that is, after the external air enters the through hole 201 through the air inlet mechanism installed on the first end, the filtering mechanism 4 filters the external air to effectively remove the dust and impurities carried by the external air, and after the filtered air flows to the receiving cavity 101 through the air inlet hole 202 on the air inlet pipe 2, the air can fully contact the electrical components in the receiving cavity 101 and take away the heat generated by the electrical components with the air flow, which not only reduces the temperature of the electrical components in the receiving cavity 101, but also effectively prevents dust and impurities in the external air from entering the receiving cavity 101, thereby prolonging the service life of the controller and improving the operation stability and safety of the mine intrinsic safety controller in the complex environment of the mine.

[0038] In some embodiments, the first end of the air inlet pipe 2 and the air outlet pipe 5 are both provided with explosion-proof grilles to enhance the safety of the mine intrinsic safety controller in the flammable and explosive environment of the mine, and the explosion-proof grilles can effectively prevent external solid substances or foreign matters from entering the receiving cavity 101 through the air inlet pipe 2 or the air outlet pipe 5.

[0039] In some embodiments, the air intake mechanism is configured as a fan, which can actively push external air into the air intake pipe 2 and make more filtered air flow into the receiving cavity 101 through the air intake hole 202, ensuring that there is sufficient fresh air in the receiving cavity 101 for heat dissipation. At the same time, the fan can accelerate the flow speed of the air, so that more filtered air enters the inside of the receiving cavity 101. The fan helps to carry away the heat generated by the internal components, reduces the working temperature of the electrical components, and prevents component aging or damage due to high temperature.

[0040] In some embodiments, an air exhaust mechanism is installed in the air exhaust hole of the air exhaust pipe 5, which is configured as a fan. The fan installed in the air exhaust hole of the air exhaust pipe 5 can actively exhaust the hot air inside the receiving cavity 101 to prevent them from accumulating in the receiving cavity 101.

[0041] In some embodiments, fans are installed in both the air intake pipe 2 and the air exhaust pipe 5, which can significantly improve the heat dissipation capacity of the controller. Under the synergistic action of the two fans, continuous air circulation can be formed in the receiving cavity 101, effectively maintaining the stability of the temperature in the receiving cavity 101 and reducing the aging and failure problems of electrical components caused by high temperature.

[0042] For example, the fans installed in the air intake pipe 2 and the air exhaust pipe 5 are both located outside the receiving cavity 101, which can facilitate personnel to maintain the fans externally without the need to open the shell 1, optimizing the operation steps of personnel and improving the work efficiency of fan maintenance.

[0043] In some embodiments, referring to Figures 7 to 9 As shown, the filter mechanism 4 includes a filter cartridge 401 and a cover plate 402. The filter cartridge 401 is configured as a hollow pipe, one end of which is fixedly connected with the cover plate 402, and the other end has a filter port 4011. The filter cartridge 401 adopts a hollow pipe structure, one end of which is fixedly connected with the cover plate 402, and the other end has a filter port 4011 for external air to flow in. After the external air passes through the filter port 4011, it flows along the length of the filter cartridge 401, thereby maximizing the contact with the surface of the filter cartridge 401 for filtration. The hollow pipe structure of the filter cartridge 401 not only enhances the filtration area, but also enables uniform distribution of airflow, improving the efficiency of air filtration. The cover plate 402 can seal the filter cartridge 401 to prevent unfiltered air from overflowing from the end away from the filter port 4011, ensuring the efficiency of the filtration process.

[0044] At the same time, the inner wall of the air inlet pipe 2 is provided with a ring table 203 abutting against the filter cartridge 401. The function of the ring table 203 is to provide support and positioning for the filter cartridge 401, to ensure that the filter cartridge 401 is stably installed in the air inlet pipe 2. The ring table 203 enables one end of the filter cartridge 401 to be in close contact with the inner wall of the air inlet pipe 2, so as to avoid displacement or vibration of the filter cartridge 401 during air flow.

[0045] For example, the filter cartridge 401 is configured as a hollow pipe, and the overall strength of the filter cartridge 401 is limited. The filter cartridge 401 is fixedly connected with a cover plate 402 at one end, so as to enhance the overall strength of the filter cartridge 401. The filter cartridge 401 can be a metal filter cartridge 401 or a fiber composite material filter cartridge 401.

[0046] In some embodiments, referring to Figures 6 to 8 As shown, the filtering mechanism 4 further comprises guide columns 403 fixedly connected to the outer wall surface of the filter cartridge 401. The number of the guide columns 403 is two. The air inlet pipe 2 is provided with guide grooves 204 corresponding to the guide columns 403. The number of the guide grooves 204 is also two. The guide grooves 204 are in communication with the through holes 201. Under the cooperation of the guide columns 403 and the guide grooves 204, the filter cartridge 401 installed in the through holes 201 of the air inlet pipe 2 will not rotate during filtering of air, so as to ensure the stability of filtering. Meanwhile, during installation of the filter cartridge 401, the guide columns 403 are inserted into the guide grooves 204, so that personnel can more conveniently install the filter cartridge 401, without worrying about the influence of incorrect installation position of the filter cartridge 401 on the filtering effect.

[0047] In some embodiments, referring to Figure 6 As shown, the ring table 203 is provided with an embedded groove 2031 for partial insertion of the filter cartridge 401. The bottom surface of the embedded groove 2031 is provided with a rubber pad layer. The rubber pad layer is arranged on the bottom surface of the embedded groove 2031, and its main function is to provide additional sealing. After partial insertion of one end of the filter cartridge 401, which is away from the cover plate 402, into the embedded groove 2031, the rubber pad layer can be tightly attached to the end surface of the filter cartridge 401, so as to prevent unfiltered air from entering the through holes 201.

[0048] For example, referring to Figure 6 and Figure 7 As shown, the inner wall of the air inlet pipe 2 is provided with a ring table 203 abutting against the filter cartridge 401. The inner hole diameter of the ring table 203 is smaller than the diameter of the filter port 4011. In this way, after the external air passes through the inner hole of the ring table 203, all the air will pass through the filter port 4011 and flow into the filter cartridge 401 for filtering, so as to avoid unfiltered air from entering the receiving cavity 101.

[0049] In some embodiments, referring to Figures 4 to 9As shown, the sealing mechanism 3 includes an annular plate 301, a sealing plate 302, a fixing rod 303, a rotating sleeve 304, a screw 305, and a nut 306. The sealing plate 302 is used to seal the through hole 201 of the air intake pipe 2, allowing outside air to enter the through hole 201 only from the first end of the air intake pipe 2. Specifically, the second end of the air intake pipe 2 is fixedly connected to the annular plate 301, which has a first groove 3011. The fixing rod 303 is fixedly connected to the first groove 3011, the rotating sleeve 304 is rotatably connected to the fixing rod 303, and the screw 305 is fixedly connected to the rotating sleeve 304. That is, refer to... Figure 8 The screw 305 can rotate around the fixed rod 303. When it is necessary to fix the sealing plate 302, the sealing plate 302 fits against the ring plate 301 and aligns the first groove 3011 with the second groove 3021. Then, the screw 305 is rotated so that the screw 305 passes through the second groove 3021. At this time, the nut 306 is rotated to clamp and fix the sealing plate 302.

[0050] For example, a sealing ring is provided between the sealing plate 302 and the ring plate 301. The sealing ring is made of rubber. By setting the sealing ring, the sealing performance between the sealing plate 302 and the ring plate 301 can be improved, preventing the filtered air from leaking out from the gap between the sealing plate 302 and the ring plate 301.

[0051] For example, refer to Figure 4 and Figure 5 As shown, the number of first grooves 3011 and second grooves 3021 is equal and there are multiple of them. Each first groove 3011 is provided with a fixing rod 303. Similarly, each fixing rod 303 is rotatably connected with a rotating sleeve 304. This arrangement allows the sealing plate 302 to be subjected to force at multiple points, and the sealing plate 302 can be fixed more firmly.

[0052] In some implementations, reference Figure 9 As shown, the sealing plate 302 is provided with an abutting block 6 for abutting the cover plate 402. The abutting block 6 is located at the center of the sealing plate 302. The abutting block 6 is made of rubber. When the sealing plate 302 is tightly attached to the ring plate 301, the abutting block 6 will abut the cover plate 402, thereby giving the filter cartridge 401 an elastic thrust, so that the filter cartridge 401 can be firmly placed in the through hole 201.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0054] Embodiments of the present application are intended to encompass all such substitutions, modifications and alterations falling within the broad scope of the appended claims. Accordingly, any and all such substitutions, modifications, permutations, improvements, and the like are intended to fall within the scope of the present application.

Claims

1. A mining intrinsically safe controller, characterized in that, include: The housing (1) has a storage cavity (101) for storing electrical components; An air intake pipe (2) has a through hole (201) for gas flow. The air intake pipe (2) extends through the housing (1) along its length direction, such that the first end and the second end of the air intake pipe (2) which are arranged opposite to each other along its length direction are both located outside the receiving cavity (101). The portion of the air intake pipe (2) located inside the receiving cavity (101) is provided with an air intake hole (202) that communicates with the through hole (201). The air intake hole (202) communicates with the receiving cavity (101). An air intake mechanism is installed on the first end, and a sealing mechanism (3) is installed on the second end. A filter mechanism (4) is provided inside the through hole (201) to filter the air passing through the through hole (201). An exhaust pipe (5) is disposed on the housing (1) and has an exhaust hole communicating with the receiving cavity (101). The exhaust pipe (5) and the intake pipe (2) are disposed opposite to each other along the height direction of the housing (1) and the exhaust pipe (5) is located above the intake pipe (2).

2. The intrinsically safe controller for mining applications according to claim 1, characterized in that: The filtration mechanism (4) includes a filter cartridge (401) and a cover plate (402). The filter cartridge (401) is constructed as a hollow tube. One end of the filter cartridge (401) is fixedly connected to the cover plate (402), and the other end has a filter port (4011). The inner wall of the air inlet pipe (2) is provided with an annular platform (203) for abutting against the filter cartridge (401).

3. A mining intrinsically safe controller according to claim 2, characterized in that: The filtration mechanism (4) further includes a guide post (403), which is fixed to the outer wall of the filter cartridge (401). The air inlet pipe (2) is provided with a guide groove (204) corresponding to the guide post (403), and the guide groove (204) is connected to the through hole (201).

4. A mining intrinsically safe controller according to claim 2, characterized in that: The ring platform (203) is provided with an embedding groove (2031) for inserting part of the filter cartridge (401), and a rubber pad layer is provided on the bottom surface of the embedding groove (2031).

5. A mining intrinsically safe controller according to claim 2, characterized in that: The sealing mechanism (3) includes a ring plate (301), a sealing plate (302), a fixing rod (303), a rotating sleeve (304), a screw (305), and a nut (306); The second end of the air intake pipe (2) is fixedly connected to an annular plate (301). The annular plate (301) is provided with a first groove (3011). The fixing rod (303) is fixedly connected in the first groove (3011). The rotating sleeve (304) is rotatably connected to the fixing rod (303). The screw (305) is fixedly connected to the rotating sleeve (304). The nut (306) is threadedly connected to the screw (305). The sealing plate (302) is provided with a second groove (3021) corresponding to the first groove (3011).

6. A mining intrinsically safe controller according to claim 5, characterized in that: The number of the first groove (3011) and the second groove (3021) are equal and there are multiple of each.

7. A mining intrinsically safe controller according to claim 5, characterized in that: A sealing ring is provided between the sealing plate (302) and the ring plate (301).

8. A mining intrinsically safe controller according to claim 5, characterized in that: The sealing plate (302) is provided with an abutting block (6) for abutting the cover plate (402), and the abutting block (6) is located at the center of the sealing plate (302).

9. A mining intrinsically safe controller according to claim 1, characterized in that: The air intake mechanism is configured as a fan.

10. A mining intrinsically safe controller according to claim 1, characterized in that: An exhaust mechanism, configured as a fan, is installed in the exhaust port of the exhaust pipe (5).

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