An industrial tablet computer

Abstract

The application discloses an industrial tablet computer and relates to the technical field of industrial tablet computers.The industrial tablet computer comprises a computer body, a running assembly provided on the back of the computer body for equipment running, and provides core computing power support for the running of the computer body, and the left and right sides of the back of the computer body are fixedly connected with protection boxes, and an explosion-proof mechanism is arranged between the two protection boxes.When the temperature of the running assembly abnormally rises, heat is transferred to the inside of the protection box, the paraffin block in the docking groove in the inside of the wind wheel is melted from solid to liquid due to the temperature rise, the wrapping and limiting effect on the docking block is lost, the volume of the paraffin block expands after melting, the docking block is retracted into the movable cavity, the transmission connection between the wind wheel and the reciprocating screw rod is disconnected, the reciprocating screw rod stops rotating, the reciprocating movement of the sealing plate is also stopped, and the cleaning pipe stops spraying air, so that the supply of gas increases the oxygen content in the inside of the equipment and further intensifies the risk.

Description

Technical Field

[0001] This invention relates to the field of industrial tablet PC technology, specifically to an industrial tablet PC. Background Technology

[0002] Industrial panel PCs are human-machine interface devices specifically designed for industrial environments. They integrate computer technology, display technology, and industrial control technology, and are characterized by their ruggedness, durability, adaptability to harsh environments, and stable performance. Compared with ordinary commercial panel PCs, industrial panel PCs are designed with greater emphasis on reliability, protection, and expandability to meet the needs of industrial sites for long-term stable operation, anti-interference capabilities, and multi-interface connectivity. Industrial panel PCs play a crucial role in modern industrial automation, intelligent manufacturing, and the Internet of Things.

[0003] Existing technology 1 (Chinese patent with announcement number CN222461967U and announcement date of 2025-02-11) discloses an industrial tablet PC, which includes a touch panel, a display panel, a housing, a power module, a heat sink, and a motherboard. The power module, heat sink, and motherboard are stacked sequentially within the housing. The housing includes a middle frame, an annular housing, and a bottom plate. The middle frame and the bottom plate are respectively disposed on opposite sides of the annular housing and form a receiving space. The display panel is embedded in the middle frame. The motherboard is a carrier board including a multi-layer PCB. Multiple circuit components are integrated on the motherboard. Multiple interfaces are disposed around the periphery of the motherboard. The middle of the motherboard is fixedly connected to the heat sink. The heat sink is disposed between the power module and the motherboard. This technology reduces the size of the industrial tablet PC while avoiding heat dissipation problems caused by concentrated heat from integrated components, providing a small and easily heat-dissipating industrial tablet PC.

[0004] There is also prior art 2 (Chinese patent with announcement number CN208588954U and announcement date of 2019-03-08) for an industrial tablet PC, comprising: a housing assembly, which includes an assembly housing and a main assembly frame, the main assembly frame being installed on the outer edge of the assembly housing and forming an assembly cavity together with the assembly housing; a display module, which includes a touch screen, a display screen and a circuit board assembly, the circuit board assembly being installed in the assembly cavity, the display screen being installed on the circuit board assembly, the touch screen being attached to the display screen, both the display screen and the touch screen being electrically connected to the circuit board assembly, the assembly housing extending protruding towards the circuit board assembly to form a plurality of first support protrusions, each of the first support protrusions abutting against the circuit board assembly, so that no matter what connection method is used to fix the display module and the assembly housing, each of the first support protrusions can always ensure that the display module and the assembly housing will not undergo relative displacement when subjected to impact, thus achieving stable fixation of the display module of the industrial tablet PC within the assembly housing.

[0005] Existing industrial panel PCs still have some shortcomings in practical applications. For example, in some industrial environments with a lot of dust and high temperatures, it is often difficult to balance heat dissipation performance and dust prevention. After long-term operation, internal dust accumulation can affect heat dissipation efficiency, and may even cause equipment failure due to excessive temperature, posing certain safety hazards.

[0006] Therefore, we propose an industrial tablet PC to address the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide an industrial tablet PC to address the problems mentioned in the background art, such as the difficulty in simultaneously achieving both heat dissipation and dust prevention in industrial environments with high dust levels and temperatures. Prolonged operation can lead to reduced heat dissipation efficiency due to internal dust accumulation, and even equipment malfunctions due to excessively high temperatures, posing certain safety hazards.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an industrial tablet PC, comprising a computer body, wherein a running component for device operation is disposed on the rear side of the computer body, the running component integrating a central processing unit, a memory module, a storage unit, and various interface controllers, providing core computing power support for the efficient and stable operation of the computer body; protective boxes are fixedly connected to the left and right rear sides of the computer body, and an explosion-proof mechanism is disposed between the two sets of protective boxes; under normal conditions, the explosion-proof mechanism achieves heat dissipation of the running component through gas exchange between the two sets of protective boxes; when the computer body overheats and poses a safety hazard, the explosion-proof mechanism achieves explosion-proof treatment of the computer body by discharging the inert gas it contains.

[0009] Preferably, the explosion-proof mechanism includes a circulation pipe that runs through the upper and lower sides of the two sets of protective boxes. The protective boxes are filled with inert gas, and a circulation fan is installed on the circulation pipe on the upper side. The inert gas is driven to circulate in the closed space formed by the circulation pipe and the protective box by the circulation fan.

[0010] Preferably, the protective box is rotatably connected to a reciprocating screw, and a fan is provided on the end side of the reciprocating screw. The fan is aligned with the air outlet end of the circulation pipe. When the circulating fan drives the inert gas to flow in the circulation pipe, the airflow impacts the fan and drives the reciprocating screw to rotate.

[0011] Preferably, the reciprocating screw has a movable cavity inside its end side, which corresponds to the position of the impeller. The impeller has a docking groove inside, and a docking block is slidably connected to the movable cavity. One end of the docking block extends into the docking groove, and two sets of docking blocks are symmetrically arranged about the center point of the reciprocating screw.

[0012] Preferably, the mating groove is filled with paraffin blocks, which wrap around the ends of the mating blocks, and the outer side of the mating blocks fits against the inner wall of the mating groove to form a sealed fit.

[0013] Preferably, when the computer body is operating at a normal temperature, the paraffin block remains solid, stably confining the docking block within the docking groove and fixing the impeller and reciprocating screw. When the temperature of the operating components rises abnormally, heat is transferred to the inside of the protective box, the paraffin block melts from solid to liquid, and the transmission connection between the impeller and the reciprocating screw is disconnected.

[0014] Preferably, a fixed barrel is fixedly connected inside the protective box, and the fixed barrel is sealed to the reciprocating screw. A sealing plate is threaded to the outside of the reciprocating screw, and the outside of the sealing plate is in contact with the inner wall of the fixed barrel. A limit rod is fixedly connected inside the fixed barrel, and the sealing plate and the limit rod are slidably connected.

[0015] Preferably, a connecting pipe is provided through the side of the fixed barrel, and a cleaning pipe is connected to the outside of the connecting pipe. Two sets of cleaning pipes are symmetrically arranged about the center point of the running component, and the jet end of the cleaning pipe is oriented towards the running component. The gas inside the fixed barrel is normal gas.

[0016] Preferably, a protective nozzle is provided through the protective box facing the operating component. When the equipment temperature rises abnormally, the protective box and the protective nozzle are in a communication state. A baffle is fixedly connected to the inner wall of the protective box, and the position of the baffle corresponds to that of the protective nozzle. The baffle is made of shape memory alloy. In the initial state, the side of the baffle is in contact with the inner wall of the protective box. When the equipment temperature rises abnormally, the baffle flips outward, and the flipping direction of the baffles set inside the two sets of protective boxes is opposite.

[0017] Compared with the prior art, the beneficial effects of the present invention are: Equipped with a protective box, the inert gas inside of which circulates within the enclosed space through circulation pipes and a circulating fan during normal operation, carrying away the heat generated by the operating components and achieving efficient heat dissipation.

[0018] Under normal conditions, when gas is being transported, the impeller will rotate synchronously. Since the impeller is fixedly connected to the reciprocating screw through the connecting block, the rotation of the impeller will directly drive the reciprocating screw to rotate as well. The sealing plate connected to the thread on the outside of the reciprocating screw will be guided by the limit rod and move up and down along the inner wall of the fixed barrel. When the sealing plate moves upward, the volume of the space below the sealing plate inside the fixed barrel decreases and the air pressure increases. The normal gas in this space will be forced into the cleaning pipe through the connecting pipe and sprayed out from the jet end of the cleaning pipe toward the running component to blow air and dissipate heat on one side of the running component to prevent the running component from overheating during use and affecting its operating performance and service life.

[0019] When the operating component temperature rises abnormally, heat is transferred to the inside of the protective box. The paraffin blocks in the docking groove inside the impeller melt from solid to liquid due to the increased temperature, losing their ability to enclose and restrict the docking blocks. At the same time, the volume of the melted paraffin blocks expands, pushing the docking blocks to contract into the moving cavity. This disconnects the transmission connection between the impeller and the reciprocating screw, causing the reciprocating screw to stop rotating. The reciprocating motion of the sealing plate also stops, and the cleaning pipe stops spraying gas to prevent the supply of gas from increasing the oxygen content inside the equipment and further aggravating the risk.

[0020] When the equipment temperature rises abnormally, the protective box connects to the outside through the protective nozzle. At this time, the inert gas stored inside the protective box is discharged to the side of the operating component, quickly filling the space around the operating component, effectively isolating oxygen and reducing the risk of combustion or explosion caused by high temperature.

[0021] The shape memory alloy baffle, which is fixedly connected to the inner wall of the protective box, deforms and flips outward when the temperature rises abnormally. The flipping of the baffle opens the channel for the inert gas inside the protective box to flow to the protective nozzle. At the same time, the flipped baffle forms an initial blockage for the transported inert gas, allowing the inert gas to better gather and be sprayed out along the baffle to the protective nozzle, improving the concentration and coverage of the inert gas spray, and ensuring that an effective inert gas protective layer can be quickly formed around the operating components. Attached Figure Description

[0022] Figure 1 This is a three-dimensional front view schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the protective box of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the cleaning tube of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the protective box of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a three-dimensional cross-sectional view of the wind turbine structure of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the docking block of the present invention; Figure 9 This is a schematic diagram showing the changes in the shape of the baffle of the present invention.

[0023] In the diagram: 1. Computer body; 2. Protective box; 3. Circulating fan; 4. Cleaning pipe; 5. Protective nozzle; 6. Circulation pipe; 7. Connecting pipe; 8. Fan wheel; 9. Fixed barrel; 10. Sealing plate; 11. Reciprocating screw; 12. Limiting rod; 13. Baffle; 14. Movable cavity; 15. Connecting groove; 16. Connecting block; 17. Paraffin block; 18. Running components. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1: As Figure 1 - Figure 6The present invention provides the following technical solution: an industrial tablet PC, wherein a running component 18 for device operation is provided on the rear side of the computer body 1. The running component 18 integrates a central processing unit, memory module, storage unit, and various interface controllers, providing core computing power support for the efficient and stable operation of the computer body 1. Protective boxes 2 are fixedly connected to the left and right rear sides of the computer body 1, and an explosion-proof mechanism is provided between the two sets of protective boxes 2. Under normal conditions, the explosion-proof mechanism achieves heat dissipation of the running component 18 through gas exchange between the two sets of protective boxes 2. The explosion-proof mechanism includes a circulation pipe 6, which runs through the upper and lower sides of the two sets of protective boxes 2. The interior of the protective boxes 2 is filled with inert gas, and a circulation fan 3 is provided on the upper circulation pipe 6. The circulation fan 3 drives the inert gas to circulate in the closed space formed by the circulation pipe 6 and the protective boxes 2. The internal rotating connection of the protective box 2 is a reciprocating screw 11, and a fan 8 is provided on the end side of the reciprocating screw 11. The fan 8 is aligned with the outlet end of the circulation pipe 6. When the circulating fan 3 drives the inert gas to flow in the circulation pipe 6, the airflow impacts the fan 8 and drives the reciprocating screw 11 to rotate. The internal fixed connection of the protective box 2 is a fixed barrel 9, and the fixed barrel 9 is sealed to the reciprocating screw 11. The outer side of the reciprocating screw 11 is threaded with a sealing plate 10, and the outer side of the sealing plate 10 is in contact with the inner wall of the fixed barrel 9. The fixed barrel 9 is fixedly connected with a limit rod 12, and the sealing plate 10 and the limit rod 12 are slidably connected. The side of the fixed barrel 9 is provided with a connecting pipe 7, and the outer side of the connecting pipe 7 is connected with a cleaning pipe 4. Two sets of cleaning pipes 4 are symmetrically arranged above and below the center point of the running component 18. The jet end of the cleaning pipe 4 is set towards the running component 18. The gas inside the fixed barrel 9 is normal gas.

[0026] During normal operation, the circulating fan 3 continuously operates, driving the inert gas inside the protective box 2 to flow from one set of protective boxes 2 to another through the upper circulating pipe 6, and then back through the lower circulating pipe 6, forming a closed loop. When the high-speed flowing inert gas is ejected from the outlet of the circulating pipe 6, it impacts the blades of the impeller 8, thereby driving the impeller 8 to rotate. Since the paraffin block 17 is solid at this time, it stably confines the docking block 16 within the docking groove 15, so that the impeller 8 and the reciprocating screw 11 are fixedly connected. The rotation of the impeller 8 is directly transmitted to the reciprocating screw 11, causing it to rotate synchronously. When the reciprocating screw 11 rotates, the sealing plate 10 connected to its outer thread is guided by the limit rod 12. Under the action, it cannot rotate with the reciprocating screw 11, but can only move up and down along the inner wall of the fixed barrel 9. When the sealing plate 10 moves upward, the space inside the fixed barrel 9 located below the sealing plate 10 is compressed, the volume decreases, and the air pressure increases accordingly. The normal air in this space will be forced into the cleaning pipe 4 through the connecting pipe 7. The jet end of the cleaning pipe 4 is directed towards the core heat-generating component of the running component 18. The airflow blows onto the surface of the running component 18, carrying away the heat generated by the running component 18 and achieving auxiliary heat dissipation. When the sealing plate 10 moves downward, the volume of the space inside the fixed barrel 9 located below the sealing plate 10 increases, and the air pressure decreases. The outside air will be drawn into the fixed barrel 9 to prepare for the next jet.

[0027] Example 2: Figure 5 , Figure 7 and Figure 8 The technical solution shown in the invention provides the following technical solution: An industrial tablet PC is disclosed, wherein a movable cavity 14 is formed inside the end side of the reciprocating lead screw 11, and the movable cavity 14 corresponds to the position of the impeller 8, and a docking groove 15 is formed inside the impeller 8. A docking block 16 is slidably connected to the movable cavity 14, and one end of the docking block 16 extends into the docking groove 15. At the same time, two sets of docking blocks 16 are symmetrically arranged about the center point of the reciprocating lead screw 11. The docking groove 15 is filled with paraffin blocks 1. 7. The paraffin block 17 wraps the end of the docking block 16, and the outer side of the docking block 16 fits against the inner wall of the docking groove 15 to form a sealed fit. When the computer body 1 is running at a normal temperature, the paraffin block 17 remains solid, stably confining the docking block 16 within the docking groove 15, and fixing the impeller 8 and the reciprocating screw 11. When the temperature of the running component 18 rises abnormally, the heat is transferred to the inside of the protective box 2, and the paraffin block 17 melts from solid to liquid, and the transmission connection between the impeller 8 and the reciprocating screw 11 is disconnected.

[0028] When the operating component 18 experiences an abnormal temperature rise due to prolonged high-load operation or internal malfunction, heat is transferred to its interior through the shell of the protective box 2. When the internal temperature of the protective box 2 reaches the melting point of paraffin wax, the solid paraffin wax block 17 begins to melt into a liquid state. The volume of the liquid paraffin wax expands compared to its solid state, and its enveloping and restricting effect on the docking block 16 is significantly weakened. Since the docking block 16 and the movable cavity 14 are slidably connected, under the thrust generated by the expansion of the liquid paraffin wax, the docking block 16 overcomes the friction with the inner wall of the docking groove 15 and contracts into the movable cavity 14. When the end of the docking block 16 completely disengages from the docking groove 15, the mechanical transmission connection between the impeller 8 and the reciprocating screw 11 is disconnected. At this time, the impeller 8 will spin freely under the impact of airflow, the reciprocating screw 11 will no longer rotate, and the up-and-down reciprocating motion of the sealing plate 10 will also stop accordingly. The cleaning pipe 4 thus stops spraying air into the operating component 18, avoiding an increase in the oxygen concentration inside the equipment due to continuous air injection, thereby preventing further aggravation of the potential risk of combustion or explosion.

[0029] Example 3: Figure 4 , Figure 5 and Figure 9 The present invention provides the following technical solution: an industrial tablet PC, wherein when the computer body 1 is overheated and poses a safety hazard, an explosion-proof mechanism achieves explosion-proof treatment of the computer body 1 by venting an inert gas. A protective nozzle 5 is provided through the protective box 2 facing the operating component 18. When the equipment temperature rises abnormally, the protective box 2 and the protective nozzle 5 are in a connected state. A baffle 13 is fixedly connected to the inner wall of the protective box 2, and the position of the baffle 13 corresponds to that of the protective nozzle 5. The baffle 13 is made of shape memory alloy. In the initial state, the side of the baffle 13 is in contact with the inner wall of the protective box 2. When the equipment temperature rises abnormally, the baffle 13 flips outward, and the flipping directions of the baffles 13 provided inside the two sets of protective boxes 2 are opposite.

[0030] When the operating component 18 experiences an abnormal temperature rise, triggering the disconnection of the transmission between the impeller 8 and the reciprocating screw 11, the temperature inside the protective box 2 continues to rise, reaching the phase transition temperature of the shape memory alloy baffle 13. Initially, the side of the baffle 13 is tightly fitted to the inner wall of the protective box 2, sealing the inner opening of the protective nozzle 5, preventing the inert gas inside the protective box 2 from escaping through the protective nozzle 5. However, when the temperature rises abnormally, the shape memory alloy baffle 13 undergoes a preset deformation, flipping outwards. Simultaneously, the protective nozzle 5 is in a connected state at high temperature. After the baffle 13 inside the protective box 2 flips, the structure that originally sealed the inner opening of the protective nozzle 5 is opened, allowing a large amount of inert gas stored inside the protective box 2 to pass through. Nozzle 5 rapidly discharges gas towards the operating component 18. The outwardly flipped baffle 13 also forms a guiding structure. When inert gas flows from inside the protective box 2 to the protective nozzle 5, it first contacts the surface of the flipped baffle 13. The baffle 13 forms a preliminary obstruction and guidance for the gas flow, forcing the gas to change its flow direction and gather at the opening of the protective nozzle 5 along the tilt angle of the baffle 13. This makes the inert gas ejected from the protective nozzle 5 faster and more concentrated, which can more effectively cover the critical area of ​​the operating component 18, quickly displace the air around the operating component 18, reduce the oxygen concentration, and thus significantly reduce the risk of combustion or explosion caused by high temperature, providing reliable safety protection for the equipment.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An industrial tablet PC, comprising a computer body (1), wherein a running component (18) for device operation is disposed on the rear side of the computer body (1), the running component (18) integrating a central processing unit, a memory module, a storage unit and various interface controllers, providing core computing power support for the efficient and stable operation of the computer body (1), characterized in that, The computer body (1) is fixedly connected to the left and right sides of the rear, and an explosion-proof mechanism is provided between the two sets of protective boxes (2). Under normal conditions, the explosion-proof mechanism achieves heat dissipation of the operating components (18) through gas exchange between the two sets of protective boxes (2). When the computer body (1) is overheated and there is a safety hazard, the explosion-proof mechanism achieves explosion-proof treatment of the computer body (1) through the discharge of the inert gas it sets. The explosion-proof mechanism includes a circulation pipe (6), which runs through the upper and lower sides of the two sets of protective boxes (2). The protective boxes (2) are filled with inert gas, and a circulation fan (3) is installed on the circulation pipe (6) on the upper side. The inert gas is driven by the circulation fan (3) to circulate in the closed space formed by the circulation pipe (6) and the protective box (2). A fixed barrel (9) is fixedly connected inside the protective box (2). A connecting pipe (7) runs through the side of the fixed barrel (9), and a cleaning pipe (4) is connected to the outside of the connecting pipe (7). Two sets of cleaning pipes (4) are symmetrically arranged about the center point of the operating component (18). The jet end is set facing the side of the operating component (18). The gas inside the fixed barrel (9) is normal gas. The protective box (2) is provided with a protective nozzle (5) through the side facing the operating component (18). When the equipment temperature rises abnormally, the protective box (2) and the protective nozzle (5) are in a connected state. The inner wall of the protective box (2) is fixedly connected with a baffle (13), and the position of the baffle (13) corresponds to that of the protective nozzle (5). The baffle (13) is made of shape memory alloy. In the initial state, the side of the baffle (13) is in contact with the inner wall of the protective box (2). When the equipment temperature rises abnormally, the baffle (13) flips outward. At the same time, the flipping direction of the baffles (13) set inside the two sets of protective boxes (2) is opposite.

2. An industrial tablet PC according to claim 1, characterized in that: The protective box (2) is rotatably connected to a reciprocating screw (11), and a fan wheel (8) is provided on the end side of the reciprocating screw (11). The fan wheel (8) is aligned with the air outlet end of the circulation pipe (6). When the circulating fan (3) drives the inert gas to flow in the circulation pipe (6), the airflow impacts the fan wheel (8) and drives the reciprocating screw (11) to rotate.

3. An industrial tablet PC according to claim 2, characterized in that: The reciprocating screw (11) has an open movable cavity (14) inside its end side, and the movable cavity (14) is positioned opposite to the impeller (8). The impeller (8) has a docking groove (15) inside its interior. A docking block (16) is slidably connected to the movable cavity (14), and one end of the docking block (16) extends into the docking groove (15). At the same time, two sets of docking blocks (16) are symmetrically arranged about the center point of the reciprocating screw (11).

4. An industrial tablet PC according to claim 3, characterized in that: The docking groove (15) is filled with a paraffin block (17), which wraps the end of the docking block (16), and the outer side of the docking block (16) is in contact with the inner wall of the docking groove (15) to form a sealed fit.

5. An industrial tablet PC according to claim 4, characterized in that: When the computer body (1) is operating at a normal temperature, the paraffin block (17) remains solid, which stably confines the docking block (16) within the docking groove (15) and fixes the impeller (8) and the reciprocating screw (11). When the temperature of the operating component (18) rises abnormally, the heat is transferred to the interior of the protective box (2), and the paraffin block (17) melts from solid to liquid, thus disconnecting the transmission connection between the impeller (8) and the reciprocating screw (11).

6. An industrial tablet PC according to claim 5, characterized in that: The fixed barrel (9) is sealed to the reciprocating screw (11), and the outer side of the reciprocating screw (11) is threaded with a sealing plate (10). At the same time, the outer side of the sealing plate (10) is in contact with the inner wall of the fixed barrel (9). A limiting rod (12) is fixedly connected inside the fixed barrel (9), and the sealing plate (10) and the limiting rod (12) are slidably connected.

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