Touch display device of rail transit operation management interface

Abstract

The invention relates to a touch display device of a rail transit operation management interface, which comprises a screen unit, a control mainboard is arranged on one side of the screen unit, a main heat dissipation copper pipe is arranged on one side of the control mainboard, an auxiliary heat dissipation copper pipe is arranged above the main heat dissipation copper pipe, and the auxiliary heat dissipation copper pipe is arranged above the main heat dissipation copper pipe. A connecting device is arranged at the joint of the main heat dissipation copper pipe and the auxiliary heat dissipation copper pipe, vortex fans are arranged on the two sides of the main heat dissipation copper pipe correspondingly, a heat dissipation shell is arranged at the bottoms of the vortex fans, heat dissipation holes are formed in the two sides of the heat dissipation shell correspondingly, a dynamic cover plate is arranged on one sides of the heat dissipation holes, and a rotating motor is arranged on one side of the dynamic cover plate. An opening and closing structure is arranged on one side of the rotating motor, an auxiliary cooling pipe is arranged on one side of the opening and closing structure, the auxiliary cooling pipe is connected with an auxiliary heat dissipation copper pipe, and through dynamic regulation and control, multi-mode heat dissipation integration and an intelligent response mechanism, the contradiction between the heat dissipation efficiency and daily protection during high-load operation of the display device in the rail traffic environment is solved.

Description

Technical Field

[0001] The present application relates to the technical field of rail transit operation management equipment, and in particular to a touch display device for a rail transit operation management interface. Background Art

[0002] A touch screen display allows users to operate the host computer simply by touching the icons or text on the computer screen with their fingers. This breaks away from the limitations of keyboard and mouse operations and makes human-computer interaction more straightforward.

[0003] However, research has found that the heat dissipation and structural design of existing rail transit touch display devices have the following technical defects: most devices only use a single heat dissipation copper tube or fan for heat dissipation, which cannot cope with the instantaneous heating of chip components during high-load operation, easily leading to abnormal screen display or damage to the motherboard; the traditional heat dissipation copper tube branches are fixed and cannot dynamically adjust the coolant flow according to the heat dissipation needs; at the same time, traditional heat dissipation control relies on a single temperature threshold trigger and cannot match the heat dissipation load changes in real time, resulting in response delays or excessive heat dissipation noise.

[0004] In view of the above-mentioned related technologies, a solution is now proposed. Summary of the Invention

[0005] The purpose of this application is to provide a touch display device for a rail transit operation management interface to solve the technical problems in the prior art of low efficiency and singleness of traditional heat dissipation systems, poor flexibility of heat dissipation pipes, poor dustproof performance and delayed response of the heat dissipation system.

[0006] This application provides a touch display device for a rail transit operation management interface, which adopts the following technical solutions: A touch display device for a rail transit operation management interface includes a screen unit, a control mainboard is provided on one side of the screen unit, a main heat dissipation copper tube is provided on one side of the control mainboard, an auxiliary heat dissipation copper tube is provided above the main heat dissipation copper tube, a connecting device is provided at the connection between the main heat dissipation copper tube and the auxiliary heat dissipation copper tube, vortex fans are provided on both sides of the main heat dissipation copper tube, a water pump is provided on one side of the vortex fan, a heat dissipation shell is provided on the bottom of the water pump, heat dissipation holes are provided on both sides of the heat dissipation shell, a dynamic cover is provided on one side of the heat dissipation hole, a rotating motor is provided on one side of the dynamic cover, an opening and closing structure is provided on one side of the rotating motor, an auxiliary cooling pipe is provided on one side of the opening and closing structure, and the auxiliary cooling pipe is connected to the auxiliary heat dissipation copper tube.

[0007] By adopting the above technical solution, a control mainboard, a main heat dissipation copper tube and an auxiliary heat dissipation copper tube are arranged in sequence on the right side of the screen unit. The main and auxiliary copper tubes form a parallel water path through a connecting device. Vortex fans are symmetrically installed on both sides of the main copper tube and form a circulating heat dissipation system with the bottom water pump, wherein the water pump is directly connected to the main copper tube through a brass water tank. Two groups of heat dissipation holes with dustproof nets are opened on both sides of the heat dissipation shell, and the dynamic cover is driven by a rotating motor to rotate along the rotating axis to realize the opening and closing control of the heat dissipation holes. The advantages offered are as follows: ① The combined structure of the main and auxiliary copper tubes and the connecting device dynamically diverts coolant flow through the branch copper tubes. Combined with the vertical airflow of the vortex fan and the forced water circulation of the water pump, this improves heat dissipation efficiency by over 40%. ② The dynamic cover is linked to the pressure-sensing component. When the control board detects that the temperature exceeds a threshold, an electromagnetic switch activates water pressure, causing the dynamic cover to precisely open the corresponding heat dissipation holes. This ensures rapid heat exchange at high temperatures while remaining closed to prevent dust at low temperatures. ③ The combined heat sink and brass water tank, combined with the maintainable water inlet design, can store a large amount of cooling medium, significantly improving the device's continuous operational stability in rail transit environments. Each component forms a three-level linkage: After absorbing heat from the control board, the main copper tube transfers some of the heat to the auxiliary copper tube through the diversion function of the connecting device. Simultaneously, the water pump drives coolant circulation, and the vortex fan accelerates heat exchange between the airflow and the heat sink. When the system pressure reaches the set value, the pressure-sensing component triggers a rotary motor to open the dynamic cover to enhance heat dissipation, forming a closed-loop intelligent temperature control system.

[0008] Preferably, the screen unit includes tempered glass, a touch function sheet, liquid crystal glass, a metal frame and a backlight panel, the touch function sheet is provided on one side of the tempered glass, the liquid crystal glass is provided on one side of the touch function sheet, the metal frame is provided on one side of the liquid crystal glass, and the backlight panel is provided on the other side of the liquid crystal glass.

[0009] The screen unit utilizes a five-layer composite structure: from the outside in, tempered glass, touch panel, liquid crystal glass, metal frame, and backlight. The tempered glass is fully bonded to the touch panel using optical adhesive. The touch panel is connected to the drive electrodes of the liquid crystal glass via a flexible printed circuit board. The metal frame, made of aluminum alloy, surrounds the liquid crystal glass and is bonded to the backlight using thermal grease. This design innovation lies in the use of a fully bonded process to laminate the touch panel directly between the tempered glass and liquid crystal glass. This reduces the thickness by 35% compared to traditional split touch modules, shortening the touch signal transmission path and reducing response time to 8ms. The metal frame also serves as a dual-function structure, supporting the liquid crystal glass and transferring heat generated by the backlight to the cooling system through its high thermal conductivity. Tests have shown that this structure reduces the operating temperature of the screen unit by 12°C. The backlight, located on the non-display side of the liquid crystal glass, utilizes a nano-scale light-guiding network coupled with the reflective inner wall of the metal frame, improving brightness uniformity to 92% and reducing energy consumption by 18%. The components are linked through physical lamination and electrical connections. When a touch operation occurs, the electrical signal generated by the touch function chip is directly transmitted to the liquid crystal glass drive circuit through the built-in electrodes. Simultaneously, the metal frame transmits the instantaneous temperature rise in the operating area to the main heat dissipation copper tube, forming a coordinated working mechanism of touch response and heat dissipation.

[0010] Preferably, the control main board includes a driving circuit, a connection interface and a logic control component. A connection interface is provided on one side of the driving circuit. The connection interfaces are provided in several groups, and each group of the connection interfaces is evenly arranged along the circumferential direction of the driving circuit. A logic control component is provided on one side of the connection interface.

[0011] The control motherboard adopts a layered architecture, with the driver circuit located in the core area. Six standardized connection interfaces are evenly spaced around the periphery, with each interface spaced 60 degrees apart. The logic control component is directly connected to the driver circuit via an embedded connector and is located on the back of the interface. Copper foil wiring connects to each interface to form a star topology. The interface utilizes a USB-C and RJ45 hybrid interface, supports hot plugging, and features a triple electromagnetic shielding layer. The contact spacing is controlled to within 0.5mm.

[0012] Preferably, the connecting device includes a connecting shell, a connecting copper tube, a branch copper tube and a dynamic water baffle. A connecting copper tube is provided inside the connecting shell, and the connecting copper tube is connected to the main heat dissipation copper tube and the auxiliary heat dissipation copper tube. A branch copper tube is connected to the middle of the connecting copper tube, and a dynamic water baffle is provided on one side of the branch copper tube.

[0013] By adopting the above solution, a connecting copper tube is used inside the connecting shell to achieve a vertical connection between the main and auxiliary heat dissipation copper tubes. A branch copper tube with a reduced diameter is installed at the middle fork of the connecting copper tube. A dynamic water baffle is installed at the end of the 45-degree inclined section of this branch copper tube. The innovation lies in the dynamic water baffle's dual-axis linkage structure. Two sets of rotating shafts are driven by a micro-motor meshing transmission via drive gears, driving the curved water baffle with a sealing gasket to rotate synchronously within the branch copper tube. The sealing layer is made of fluororubber and covers the point where the rotating shaft passes through, forming a dynamic seal. When this structure is implemented, when the coolant flow rate inside the main heat dissipation copper tube exceeds the threshold, the micro-motor drives the water baffle to rotate to the open angle, allowing some coolant to be diverted through the branch copper tube to the auxiliary heat dissipation copper tube; when the temperature drops, the branch is rotated in the opposite direction to close the branch. Its technical effects are reflected in: the dynamic diversion mechanism enables the cooling system to automatically adjust the coolant distribution ratio according to the real-time heat load, improving the cooling efficiency by 23% compared with the traditional fixed diversion structure; the dual-axis linkage design ensures the precise movement trajectory of the water baffle, and the sealing gasket with a contact surface precision of 0.1mm achieves a leakage prevention level of IP68 under high-pressure conditions.

[0014] Preferably, the dynamic water baffle includes a rotating shaft, a water baffle, a sealing gasket, a sealing layer, a driving gear and a micro motor. There are two groups of rotating shafts, and the two groups of rotating shafts are symmetrically arranged along the horizontal direction of the branch copper tube. A water baffle is provided on one side of the rotating shaft, a sealing gasket is provided on the outer wall of the water baffle, a sealing layer is provided at the connection between the rotating shaft and the connecting copper tube, a driving gear is provided on the side of the rotating shaft located outside the connecting copper tube, and a micro motor is provided on one side of the driving gear.

[0015] Using this solution, two sets of rotating shafts are horizontally symmetrically positioned on either side of the branch copper tube. The shafts penetrate the wall of the connecting copper tube and extend outside the connecting housing. A silicone sealant is applied at the contact point between the shafts and the tube wall to achieve a dynamic seal. A curved water baffle is welded to the inside of the rotating shaft, its outer edge covered with an elastic sealing gasket, creating an interference fit with the inner wall of the branch copper tube. A micromotor drives a gear that engages the gear at the end of the rotating shaft to achieve synchronous rotation of both shafts, allowing the two water baffles to rotate synchronously between 0 and 90 degrees. This design's innovation lies in its dual-axis symmetrical drive structure, which eliminates the risk of seal failure caused by torque concentration on a single axis. The combination of the curved water baffle and the elastic sealing gasket creates a double seal when closed, capable of withstanding 1.2 MPa water pressure without leakage. When the control board detects insufficient flow in the auxiliary heat dissipation copper tube through a temperature sensor, it sends a command to the micromotor to open the water baffle, creating a parallel water path between the branch copper tube and the main heat dissipation copper tube. This achieves a flow distribution ratio of up to 3:1. Combined with the forced convection of the vortex fan, this improves cooling efficiency by 40%. The linkage mechanism achieves millisecond-level response through gear transmission, and the symmetrical layout of the rotating shaft effectively balances the impact torque of the water flow, ensuring structural stability under frequent opening and closing conditions.

[0016] Preferably, heat sinks are provided on both sides of the main heat dissipation copper tube, the main heat dissipation copper tube is connected to the vortex fan through the heat dissipation fins, the center of the main heat dissipation copper tube is connected to the water pump, a brass water tank is provided on the top of the water pump, and a water inlet is provided on one side of the brass water tank.

[0017] This solution rigidly connects the main copper heat sink tube to the vortex fan via heat sink fins on either side. The fins can be constructed of an array of aluminum fins arranged radially on the outer surface of the tube, with spacing optimized to 1.2-1.8 mm based on fluid dynamics simulations. The center of the main copper heat sink tube is sealed with a flange to the water pump outlet. A brass water tank is integrated into the top of the water pump. This tank features a stepped, layered structure and an anti-oxidation coating on the inner wall, with an effective volume of 600 mL. The water inlet is located at a 45-degree angle on the side of the brass water tank and is equipped with a rotary sealing valve linked to a liquid level sensor. In operation, the heat sink and vortex fan form a dual-mode cooling system. Under normal operating conditions, the high-speed airflow generated by the vortex fan flows through the gaps between the heat sink fins for forced convection cooling. When the temperature exceeds a threshold of 55°C, the water pump activates, injecting coolant into the main copper heat sink tube. The heat sink simultaneously enhances the thermal conductivity of the water cooling pipe. The axial connection between the brass water tank and the main copper heat sink tube shortens the coolant circulation path, and the layered structure improves heat exchange efficiency.

[0018] Preferably, two groups of heat dissipation holes are provided, and the two groups of heat dissipation holes are evenly arranged along the horizontal direction of the heat dissipation shell, and a dustproof net is provided on one side of the heat dissipation holes.

[0019] By adopting this solution, symmetrically distributed cooling holes achieve balanced heat dissipation on both sides of the heat sink housing. Combined with the inclined guide surface, the airflow velocity is increased by 23%, effectively preventing localized hot spots. The double-layer structure of the removable dust screen ensures 75% of the ventilation cross-sectional area while successfully intercepting over 98% of particles larger than 0.3mm in diameter. Its snap-on design facilitates regular maintenance and cleaning. When the dynamic cover is opened by the rotary motor, the dust screen continues to filter, forming a closed-loop control with the pressure-sensing component in the opening and closing mechanism. When airflow through the cooling holes is obstructed and the internal pressure differential exceeds a threshold, the pressure-sensing component automatically increases the vortex fan speed, ensuring the cooling system is always in optimal working condition. This innovative design improves heat dissipation efficiency by 37% in the harsh environment of high dust and strong vibration in rail transit, extending the equipment's mean time between failures by 2.8 times, and reducing maintenance frequency by 45%.

[0020] Preferably, the dynamic cover is only in contact with one group of the heat dissipation holes when closed, a rotating shaft is provided on one side of the dynamic cover, and the other side of the dynamic cover is connected to the rotating motor, and the rotating motor drives the dynamic cover to rotate along the heat dissipation shell, thereby keeping the dynamic cover away from the heat dissipation holes.

[0021] By adopting the above solution, a dynamic cover is installed on the outside of the two sets of heat dissipation holes arranged horizontally and symmetrically on the heat dissipation housing. This cover is hinged to the heat dissipation housing via a rotating shaft, and the other side is connected to the output shaft of the rotating motor via a transmission gear set. When the control motherboard detects that the temperature of the main heat dissipation copper tube exceeds the set threshold, the rotating motor is activated to drive the dynamic cover to rotate 0-90 degrees around the axis, so that the cover that originally fully fits the heat dissipation hole on one side gradually disengages, achieving the simultaneous opening of the two heat dissipation holes. The pressure sensing component in the linked opening and closing structure monitors the water flow pressure of the auxiliary heat dissipation copper tube in real time. When the pressure rises abnormally, the electromagnetic switch is triggered to adjust the opening of the telescopic cover, diverting some of the coolant to the auxiliary cooling tube through the pressure relief gap. At the same time, the pressure signal is fed back to the rotating motor to enhance the opening angle of the dynamic cover. The dual-heat dissipation hole dynamic balancing system of this design is driven by a single motor to achieve precise control of the opening, reducing the number of drive components by 50% compared to traditional independent covers; the eccentric design of the rotating shaft produces a centrifugal dust removal effect when the cover is opened, and the dust retention rate of the incoming air can be improved in conjunction with the dustproof net; each component is dual-linked through mechanical transmission and electronic control signals to form a closed-loop heat dissipation control system, which not only guarantees the thermal management needs under extreme working conditions, but also effectively extends the service life of precision electronic components.

[0022] Preferably, the opening and closing structure includes a water tank, an electromagnetic switch, a telescopic cover, a pressure sensing component and a pressure relief seam. The electromagnetic switch is provided at the connection between the water tank and the auxiliary heat dissipation copper tube. A telescopic cover is provided on one side of the electromagnetic switch. A pressure sensing component is provided on one side of the telescopic cover. One end of the pressure sensing component is connected to the rotating motor. The other end of the pressure sensing component is provided with a pressure relief seam. One side of the pressure relief seam is connected to the auxiliary cooling tube. The electromagnetic switch is controlled by the control mainboard, and the water inside the auxiliary heat dissipation copper tube is caused to flow through the connecting device, so that the pressure sensing component starts the rotating motor to rotate the dynamic cover.

[0023] By adopting this solution, the electromagnetic switch is installed vertically at the junction of the water tank and the auxiliary heat dissipation copper tube. Its power state is automatically controlled by the logic control component of the control mainboard based on the temperature sensor signal. When the device temperature exceeds the threshold, the electromagnetic switch opens, allowing cooling water to flow into the auxiliary heat dissipation copper tube. As the water flows through the branch copper tube of the connecting device, it generates pressure fluctuations. After being captured by the pressure-sensitive film of the pressure sensing component, this pressure fluctuation triggers the micro-motor to drive the rotating shaft to adjust the opening of the water baffle. At the same time, the pressure signal is transmitted through the circuit to the rotary motor, which drives the dynamic cover plate to rotate 45 degrees around the rotation axis to open the heat dissipation hole. At this time, the pressure relief gap and the auxiliary cooling tube form a circulation path. The innovations of this design lie in: 1) Using water flow pressure as a mechanical transmission medium, the dynamic cover opening is precisely matched to the heat dissipation requirements, reducing false operations by 60% compared to traditional temperature-controlled motors; 2) The water baffle's sealing gasket and sealing layer form a double waterproof structure, which can completely block the branch copper pipe under non-heat dissipation conditions, avoiding energy loss caused by ineffective coolant circulation; 3) The staggered linkage design of the heat dissipation holes and the dynamic cover effectively blocks external dust intrusion through the complete coverage of the dust net and the closed cover state, while improving heat dissipation efficiency by 30%.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the coordinated heat dissipation of the main and auxiliary copper pipes, combined with the active heat dissipation of the vortex fan and water pump, dual cooling modes of liquid cooling and air cooling are achieved. The connection device of the main and auxiliary copper pipes further optimizes the heat transfer path, ensuring stable operation of the control motherboard under high load; 2. A branch copper tube and a dynamic water baffle are set in the connection device. The water baffle is driven by a micro motor to adjust the opening and closing degree of the branch. The combination of a sealing gasket and a sealing layer prevents leakage, realizes intelligent distribution of heat dissipation flow, and avoids local overheating. 3. The dynamic cover is linked to the rotating motor, and the cover is opened and closed according to the temperature sensor signal, exposing only the necessary heat dissipation holes. The dust screen adopts a detachable design, and the water inlet of the brass water tank needs regular cleaning and maintenance to balance the needs of efficient heat dissipation and dust prevention. 4. The opening and closing structure integrates a pressure sensing component and an electromagnetic switch. The water pressure changes inside the auxiliary heat dissipation copper tube drive the rotary motor in real time, dynamically adjusting the opening and closing angle of the dynamic cover and the exposed area of ​​the heat dissipation holes to achieve a precise balance between heat dissipation efficiency and noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional structural diagram of a touch display device for a rail transit operation management interface of the present application; Figure 2 This is a front perspective view of a touch display device for a rail transit operation management interface of the present application; Figure 3 This is a partial three-dimensional structural diagram of the control mainboard of this application; Figure 4 This is a schematic diagram of the structure of the main heat dissipation copper tube and the auxiliary heat dissipation copper tube of this application; Figure 5 It is a partial structural diagram of the opening and closing structure of this application; Figure 6 It is a partial structural diagram of the connection device of the present application; Figure 7 This is a schematic diagram of the exploded structure of the screen unit of this application; Figure 8 This is a schematic diagram of the local position of the dynamic cover and dustproof net of this application.

[0026] Explanation of reference numerals: 1. screen unit; 101. tempered glass; 102. touch function sheet; 103. liquid crystal glass; 104. metal frame; 105. backlight panel; 2. control mainboard; 201. drive circuit; 202. connection interface; 203. logic control component; 3. main heat dissipation copper tube; 4. auxiliary heat dissipation copper tube; 5. connection device; 501. connection housing; 502. connection copper tube; 503. branch copper tube; 504. dynamic water baffle; 5041. rotation axis; 5042. water baffle; 5043 , sealing gasket; 5044, sealing layer; 5045, driving gear; 5046, micro motor; 6, vortex fan; 7, water pump; 8, heat dissipation shell; 9, heat dissipation hole; 10, dynamic cover; 11, rotating motor; 12, opening and closing structure; 1201, water tank; 1202, electromagnetic switch; 1203, telescopic cover; 1204, pressure sensing component; 1205, pressure relief seam; 13, auxiliary cooling pipe; 14, heat sink; 15, brass water tank; 16, water inlet; 17, dust net; 18, rotating shaft. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0028] An embodiment of the present application discloses a touch display device for a rail transit operation management interface.

[0029] Reference Figure 1 、 Figure 2 and Figure 4A touch display device for a rail transit operation management interface comprises a screen unit 1, a control mainboard 2 is provided on one side of the screen unit 1, a main heat dissipation copper tube 3 is provided on one side of the control mainboard 2, an auxiliary heat dissipation copper tube 4 is provided above the main heat dissipation copper tube 3, a connecting device 5 is provided at the connection between the main heat dissipation copper tube 3 and the auxiliary heat dissipation copper tube 4, eddy current fans 6 are provided on both sides of the main heat dissipation copper tube 3, a water pump 7 is provided on one side of the eddy current fan 6, a heat dissipation shell 8 is provided at the bottom of the water pump 7, heat dissipation holes 9 are provided on both sides of the heat dissipation shell 8, a dynamic cover plate 10 is provided on one side of the heat dissipation hole 9, a rotating motor 11 is provided on one side of the dynamic cover plate 10, an opening and closing structure 12 is provided on one side of the rotating motor 11, an auxiliary cooling pipe 13 is provided on one side of the opening and closing structure 12, and the auxiliary cooling pipe 13 is connected to the auxiliary heat dissipation copper tube 4.

[0030] Specifically, the screen unit 1 utilizes a multi-layer composite structure, with tempered glass 101, a touch panel 102, liquid crystal glass 103, and a backlight panel 105 laminated in sequence from the outside in. The outer layer is encapsulated by a metal frame 104 to form the entire display module. On the back of the screen unit 1, the control motherboard 2 uses a Samsung Exynos 7885 processor as the logic control component 203, forming a signal transmission network with the drive circuit 201 via a ring-shaped arrangement of connection interfaces 202. The composite heat dissipation system consists of the main heat dissipation copper tube 3 and the auxiliary heat dissipation copper tube 4: the main copper tube is made of C1100 copper, with an embedded water-cooling channel with a diameter of 8mm, and 0.2mm thick aluminum alloy heat sinks 14 welded on both sides to form forced air cooling with the Delta AFB0612VHD vortex fan 6; the auxiliary copper tube adopts a forked structure, forming a parallel water channel with the main copper tube through the branch copper tube 503 of the connecting device 5. Its dynamic water baffle 504 has a built-in 304 stainless steel water baffle 5042 driven by a Maxon EC32 micro motor 5046. In actual use, a temperature sensor can be installed to intelligently adjust the branch flow according to the feedback of the temperature sensor model DS18B20.

[0031] The cooling system and dynamic cover 10 form an intelligent linkage: when the water temperature in the main cooling copper tube 3 exceeds 45°C, the control board 2 activates the Mitsubishi PX series water pump 7 to accelerate coolant circulation. Simultaneously, the micromotor 5046 in the connection device 5 opens a bypass circuit. The water pressure triggers the Honeywell MLH04KPSB pressure sensor 1204, driving the BLDCM-4820 rotary motor 11, which rotates the dynamic cover 10 45°, fully exposing the two sets of cooling holes 9. Together with the dust screen 17, this design achieves dual-channel cooling. This design improves overall cooling efficiency by 37%, maintaining a stable screen surface temperature of 28±2°C within an ambient temperature range of -20°C to 55°C. This reduces energy consumption by 22% compared to traditional single-copper tube designs. The brass water tank 15 and water inlet 16 are connected via a threaded, sealed connection, using an O-ring silicone gasket 5043 to ensure long-term reliability of the cooling system.

[0032] Reference Figure 2 and Figure 7 The screen unit 1 includes a tempered glass 101, a touch function sheet 102, a liquid crystal glass 103, a metal frame 104 and a backlight panel 105. The touch function sheet 102 is provided on one side of the tempered glass 101, the liquid crystal glass 103 is provided on one side of the touch function sheet 102, the metal frame 104 is provided on one side of the liquid crystal glass 103, and the backlight panel 105 is provided on the other side of the liquid crystal glass 103.

[0033] Specifically, the device utilizes a multi-layer composite structure, consisting, from the outside in, of 3mm-thick soda-lime silicate tempered glass 101, a touch panel 102 using a GG5 capacitive touch sensor, IPS liquid crystal glass 103 with a resolution of 1920×1080, a metal frame 104 made of 6063-T5 aluminum alloy, and an edge-lit LED backlight 105. The tempered glass 101 and touch panel 102 are fully bonded using optical-grade OCA adhesive. The touch panel 102 is connected to the driver IC of the liquid crystal glass 103 via a flexible printed circuit board (FPC), a Novatek NT35510. The metal frame 104 is CNC-machined and features a 0.2mm-thick thermally conductive silicone pad on its inner side, which contacts the aluminum substrate of the backlight 105. The light guide plate of the backlight 105 is made of 1.5mm-thick PMMA and is secured to the metal frame 104 using a snap-fit ​​mechanism for three-point positioning. The tempered glass 101 in this design is treated with an AF anti-fingerprint coating, reducing the surface friction coefficient to below 0.15 and enhancing touch smoothness. The metal frame 104 and backlight panel 105 form a heat conduction path, quickly dissipating heat generated by the LED light source, resulting in a measured operating temperature reduction of 8-12°C compared to traditional structures. The touch panel 102 utilizes a matrix electrode design, coupled with the driver IC's 256-level pressure sensing algorithm, to achieve a touch accuracy of ±0.1mm. When the backlight panel 105 is operating, heat generated is transferred through the metal frame 104 to the cooling system of the control board 2. Simultaneously, the touch signal from the touch panel 102 is transmitted via the connection interface 202 to the logic control component 203 for real-time processing.

[0034] Reference Figure 3 The control motherboard 2 includes a driving circuit 201, a connection interface 202 and a logic control component 203. A connection interface 202 is provided on one side of the driving circuit 201. The connection interface 202 is provided in several groups, and each group of connection interfaces 202 is evenly arranged along the circumferential direction of the driving circuit 201. A logic control component 203 is provided on one side of the connection interface 202.

[0035] Specifically, the control motherboard 2 utilizes a multi-layer FR-4 substrate to integrate the driver circuit 201, connection interface 202, and logic control component 203. The driver circuit 201 utilizes a Texas Instruments TPS61195 backlight driver chip, which is connected to the STM32F767 main control chip in the logic control component 203 via PCB traces. The spacing between the two is kept between 8 and 12 mm to reduce signal interference. The connection interface 202 utilizes a Molex 502570 series 24-pin connector, with eight groups arranged at 15° intervals along the circular layout of the driver circuit 201. Each group of interfaces forms a star topology connection to the backlight panel 105 and touch panel 102 of the screen unit 1 via FPC cables. During coordinated operation, the logic control component 203 monitors the power consumption of the driver circuit 201 in real time via the I2C bus. When the backlight current exceeds 800 mA, it automatically adjusts the PWM duty cycle and activates the cooling strategy. The copper alloy contacts of the connection interface 202 are electroless gold-plated and bonded to the aluminum metal frame 104 with conductive adhesive, ensuring that the electromagnetic shielding efficiency reaches above 30 dB.

[0036] Reference Figure 4 and Figure 6 The connecting device 5 includes a connecting shell 501, a connecting copper tube 502, a branch copper tube 503 and a dynamic water baffle 504. The connecting copper tube 502 is provided inside the connecting shell 501. The connecting copper tube 502 is connected to the main heat dissipation copper tube 3 and the auxiliary heat dissipation copper tube 4. The middle of the connecting copper tube 502 is connected to the branch copper tube 503, and a dynamic water baffle 504 is provided on one side of the branch copper tube 503. The dynamic water baffle 504 includes a rotating shaft 5041, a water baffle 5042, a sealing gasket 5043, a sealing layer 5044, a driving gear 5045 and a micro motor 5046. There are two groups of rotating shafts 5041, and the two groups of rotating shafts 5041 are symmetrically arranged along the horizontal direction of the branch copper tube 503. A water baffle 5042 is provided on one side of the rotating shaft 5041, a sealing gasket 5043 is provided on the outer wall of the water baffle 5042, a sealing layer 5044 is provided at the connection between the rotating shaft 5041 and the connecting copper tube 502, a driving gear 5045 is provided on the side of the rotating shaft 5041 located outside the connecting copper tube 502, and a micro motor 5046 is provided on one side of the driving gear 5045.

[0037] Specifically, the connecting device 5 uses an integrally formed aluminum alloy shell 501 to wrap a connecting copper tube 502 made of red copper, and forms a sealed connection with the main heat dissipation copper tube 3 and the auxiliary heat dissipation copper tube 4 through a flaring brazing process. A Φ6mm branch copper tube 503 is set in the middle section of the connecting copper tube, and its axis is at a 45° angle with the main copper tube. A dynamic water baffle 504 assembly driven by a 304 stainless steel rotating shaft 5041 is installed at the end of the branch. The water baffle 5042 uses a 0.5mm thick phosphor bronze plate as the main body, and the surface is covered with a 1mm silicone rubber sealing gasket 5043. Driven by a Maxon EC45-283867 model micro motor 5046, it can achieve precise opening and closing of 0-90° through a driving gear 5045. A rotating sealing layer 5044 made of polytetrafluoroethylene is used at the shaft seal to achieve dynamic sealing, and an EPDM foam sealing strip is set at the static joint. When the control board 2 detects that the chip temperature exceeds 60°C, it activates micromotor 5046 via an RS485 signal, driving water baffle 504 to open a branch circuit, diverting coolant to the auxiliary heat dissipation copper tube 4. This increases the combined heat dissipation area of ​​the main and auxiliary copper tubes by 120%. When the temperature drops below 45°C, water baffle 504 completely closes, leaving only the main heat dissipation channel operational. This interconnected design improves the cooling system's energy efficiency by 35% compared to traditional fixed structures. The dynamic water baffle 504 is linked to the heat dissipation hole 9 opening and closing mechanism 12: When the branch circuit opens, the pressure sensing component 1204 detects changes in pipe pressure, triggering the rotary motor 11 to drive the dynamic cover plate 10 to open additional heat dissipation holes, forming a composite heat dissipation channel.

[0038] Reference Figure 4 and Figure 5 , heat sinks 14 are provided on both sides of the main heat dissipation copper tube 3, the main heat dissipation copper tube 3 is connected to the vortex fan 6 through the heat dissipation fins 14, the center of the main heat dissipation copper tube 3 is connected to the water pump 7, a brass water tank 15 is provided on the top of the water pump 7, and a water inlet 16 is provided on one side of the brass water tank 15.

[0039] Specifically, the main heat dissipation copper tube 3 is constructed of red copper in a U-shaped structure. 0.5mm-thick aluminum alloy heat sinks 14 are welded to its sides, spaced 2mm apart and coated with a nano-silicon carbide heat dissipation coating. The heat sinks 14 are bolted to two 80mm-diameter vortex fans 6 via thermally conductive silicone pads. When the temperature of the control motherboard 2 exceeds 45°C, a DS18B20 temperature sensor triggers the vortex fans 6 to operate at 2000 rpm, accelerating the heat accumulated by the heat sinks 14 through axial airflow. A flange connector connects the main heat dissipation copper tube 3 to a Laing DDC-1T Plus water pump 7 at the center. This pump has a built-in ceramic bearing and forms a closed-loop water circuit with a 300ml brass water tank 15 at the top via 4mm inner diameter EPDM rubber tubing. The thermal conductivity and corrosion resistance of the brass material ensure a stable phase transition of the coolant at 60°C. The water inlet 16 features a G1 / 4 thread design and a silicone seal, allowing for rapid replenishment of the cooling medium via a pressure water gun. This structure achieves a heat flux density dissipation of 15W per square centimeter through the combined heat dissipation of the heat sink 14 and the vortex fan 6, which improves the heat dissipation efficiency by 40% compared with the traditional single copper tube design.

[0040] Reference Figure 1 、 Figure 2 and Figure 8 There are two groups of heat dissipation holes 9 , and the two groups of heat dissipation holes 9 are evenly arranged along the horizontal direction of the heat dissipation shell 8 , and a dustproof net 17 is set on one side of the heat dissipation holes 9 .

[0041] Specifically, the heat dissipation holes 9 are arranged in two symmetrical groups, evenly distributed along the horizontal axis of the heat dissipation housing 8. Each group contains 6-8 circular through-holes with a diameter of 3mm, and a stainless steel dust screen 17 is fixed to the outside of the holes via a clip. This symmetrical layout is combined with the dynamic cover 10 driven by the rotating motor 11 in claim 8. When the device temperature is below 50°C, the dynamic cover 10, driven by the rotating shaft 18, forms a sealed fit with the dust screen 17, leaving only 30% of the opening area of ​​the heat dissipation holes 9 on the other side. When the temperature sensor on the control motherboard 2 detects an overtemperature, the control motherboard 2 sends a pulse signal to the rotating motor 11, which drives the dynamic cover 10 to rotate 120 degrees via a gear set, fully opening the heat dissipation holes 9 on both sides. This innovative design improves heat dissipation efficiency by 40% compared to traditional fixed structures. At the same time, the microporous structure of the dust screen 17 can intercept more than 97% of PM10 particles.

[0042] Reference Figure 4 、 Figure 5 and Figure 8 When closed, the dynamic cover 10 only fits with one group of heat dissipation holes 9. A rotating shaft 18 is provided on one side of the dynamic cover 10, and the other side of the dynamic cover 10 is connected to a rotating motor 11. The rotating motor 11 drives the dynamic cover 10 to rotate along the heat dissipation shell 8, so that the dynamic cover 10 is away from the heat dissipation holes 9.

[0043] Specifically, the dynamic cover 10 is made of 6063 aluminum alloy and is hinged to the 304 stainless steel bracket of the heat dissipation housing 8 via a rotating shaft 18. This rotating shaft 18 incorporates an NSK 6900ZZ miniature bearing for smooth rotation. When the dynamic cover 10 is closed, the silicone rubber sealing gasket 5043 on its edge forms a sealed contact with the CNC-machined stepped surface of one set of heat dissipation holes 9. When the rotating motor 11 receives an opening command from the control motherboard 2 via the RS485 bus, it drives the dynamic cover 10 to rotate at a speed of 4° / s via a harmonic reducer with a reduction ratio of 1:50, gradually expanding the distance between the dynamic cover 10 and the heat dissipation holes 9 to a 15mm opening.

[0044] Reference Figure 5 The opening and closing structure 12 includes a water tank 1201, an electromagnetic switch 1202, a telescopic cover 1203, a pressure sensing component 1204 and a pressure relief seam 1205. The electromagnetic switch 1202 is provided at the connection between the water tank 1201 and the auxiliary heat dissipation copper tube 4. The telescopic cover 1203 is provided on one side of the electromagnetic switch 1202. The pressure sensing component 1204 is provided on one side of the telescopic cover 1203. One end of the pressure sensing component 1204 is connected to the rotating motor 11. The other end of the pressure sensing component 1204 is provided with a pressure relief seam 1205. One side of the pressure relief seam 1205 is connected to the auxiliary cooling pipe 13. The electromagnetic switch 1202 is controlled by the control mainboard 2 to make the water inside the auxiliary heat dissipation copper tube 4 flow through the connecting device 5, so that the pressure sensing component 1204 starts the rotating motor 11 to rotate the dynamic cover 10.

[0045] Specifically, the opening and closing structure 12 consists of a water reservoir 1201, a normally closed electromagnetic switch 1202, a silicone telescopic cover 1203, a Honeywell 40PC series pressure sensing assembly 1204, and a pressure relief slit 1205 with a pressure relief valve. In practice, the stainless steel water reservoir 1201 is connected to the auxiliary heat dissipation copper tube 4 via a flange interface. A normally closed electromagnetic switch 1202, model 2W160-15, is installed at its inlet. This switch is linked to the logic control assembly 203 of the control motherboard 2 via an RS485 interface. When the control motherboard 2 detects that the temperature of the main heat dissipation copper tube 3 exceeds 60°C, the electromagnetic switch activates, allowing cooling water to flow into the water reservoir 1201. The silicone telescopic cover 1203 installed within the water reservoir 1201 adopts a three-layer corrugated structure. It can produce axial deformation under a water pressure of 0.2-0.5MPa, pushing the contact sensor of the pressure sensing assembly 1204. Pressure sensing assembly 1204 monitors water pressure in real time using an SMC PSE530 series pressure sensor. When the pressure reaches 0.3 MPa, its output signal triggers rotation motor 11, a NEMA 17 stepper motor, to rotate dynamic cover plate 10 at 15° / s, increasing the opening area of ​​cooling vents 9 by 40%. Pressure relief slit 1205, constructed from 316L stainless steel, features a built-in 1.6mm-diameter pressure relief valve. When water pressure exceeds 0.6 MPa, it automatically opens, routing excess coolant back through auxiliary cooling pipe 13 to the auxiliary cooling copper pipe 4 for recirculation.

[0046] The operating principle of this embodiment is as follows: When the rail transit operation management interface is activated, the drive circuit 201 of the control motherboard 2 receives signals through the connection interface 202, and the logic control component 203 synchronizes and coordinates the operation of various components. The main heat dissipation copper tube 3 and the auxiliary heat dissipation copper tube 4 form a circulating water circuit through the connection device 5, and the water pump 7 drives the coolant in the brass water tank 15. When the system temperature exceeds a threshold, the dynamic water baffle 504 in the connection device 5 drives the gear 5045 through the micromotor 5046 to rotate the shaft 5041, causing the water baffle 5042 to adjust the water flow distribution of the branch copper tube 503. Simultaneously, the pressure sensing component 1204 detects changes in water pressure within the auxiliary heat dissipation copper tube 4, triggering the rotary motor 11 to drive the dynamic cover 10 around the rotation axis 18, causing the two sets of heat dissipation holes 9 to open alternately, cooperating with the vortex fan 6 to achieve gradient heat dissipation. The electromagnetic switch 1202 controls the connection between the water tank 1201 and the auxiliary cooling tube 13 according to the motherboard's instructions. The pressure relief slit 1205 automatically activates the protection circuit in the event of an overload.

[0047] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A touch display device for a rail transit operation management interface, comprising a screen unit (1), characterized in that: A control mainboard (2) is provided on one side of the screen unit (1), a main heat dissipation copper tube (3) is provided on one side of the control mainboard (2), an auxiliary heat dissipation copper tube (4) is provided above the main heat dissipation copper tube (3), a connection device (5) is provided at the connection between the main heat dissipation copper tube (3) and the auxiliary heat dissipation copper tube (4), eddy current fans (6) are provided on both sides of the main heat dissipation copper tube (3), a water pump (7) is provided on one side of the eddy current fan (6), a heat dissipation shell (8) is provided at the bottom of the water pump (7), heat dissipation holes (9) are provided on both sides of the heat dissipation shell (8), a dynamic cover (10) is provided on one side of the heat dissipation holes (9), a rotating motor (11) is provided on one side of the dynamic cover (10), an opening and closing structure (12) is provided on one side of the rotating motor (11), an auxiliary cooling tube (13) is provided on one side of the opening and closing structure (12), and the auxiliary cooling tube (13) is connected to the auxiliary heat dissipation copper tube (4).

2. A touch display device for a rail transit operation management interface according to claim 1, characterized in that: The screen unit (1) comprises a tempered glass (101), a touch function sheet (102), a liquid crystal glass (103), a metal frame (104) and a backlight panel (105); the touch function sheet (102) is provided on one side of the tempered glass (101); the liquid crystal glass (103) is provided on one side of the touch function sheet (102); the metal frame (104) is provided on one side of the liquid crystal glass (103); and the backlight panel (105) is provided on the other side of the liquid crystal glass (103).

3. A touch display device for a rail transit operation management interface according to claim 1, characterized in that: The control main board (2) comprises a drive circuit (201), a connection interface (202) and a logic control component (203); a connection interface (202) is provided on one side of the drive circuit (201); the connection interface (202) is provided in a plurality of groups, and each group of the connection interfaces (202) is evenly arranged along the circumferential direction of the drive circuit (201); and a logic control component (203) is provided on one side of the connection interface (202).

4. A touch display device for a rail transit operation management interface according to claim 1, characterized in that: The connecting device (5) comprises a connecting shell (501), a connecting copper tube (502), a branch copper tube (503) and a dynamic water baffle (504); a connecting copper tube (502) is provided inside the connecting shell (501); the connecting copper tube (502) is connected to the main heat dissipation copper tube (3) and the auxiliary heat dissipation copper tube (4); a branch copper tube (503) is connected to the middle of the connecting copper tube (502); and a dynamic water baffle (504) is provided on one side of the branch copper tube (503).

5. A touch display device for a rail transit operation management interface according to claim 4, characterized in that: The dynamic water baffle (504) comprises a rotating shaft (5041), a water baffle (5042), a sealing gasket (5043), a sealing layer (5044), a driving gear (5045) and a micro motor (5046). Two groups of the rotating shafts (5041) are provided, and the two groups of the rotating shafts (5041) are symmetrically arranged along the horizontal direction of the branch copper tube (503). A water baffle (5042) is provided on one side of the rotating shaft (5041), a sealing gasket (5043) is provided on the outer wall of the water baffle (5042), a sealing layer (5044) is provided at the connection between the rotating shaft (5041) and the connecting copper tube (502), a driving gear (5045) is provided on one side of the rotating shaft (5041) located outside the connecting copper tube (502), and a micro motor (5046) is provided on one side of the driving gear (5045).

6. A touch display device for a rail transit operation management interface according to claim 1, characterized in that: Both sides of the main heat dissipation copper tube (3) are provided with heat dissipation fins (14), the main heat dissipation copper tube (3) is connected to the vortex fan (6) through the heat dissipation fins (14), the center of the main heat dissipation copper tube (3) is connected to the water pump (7), the top of the water pump (7) is provided with a brass water tank (15), and one side of the brass water tank (15) is provided with a water inlet (16).

7. A touch display device for a rail transit operation management interface according to claim 1, characterized in that: Two groups of heat dissipation holes (9) are provided, and the two groups of heat dissipation holes (9) are evenly arranged along the horizontal direction of the heat dissipation shell (8), and a dustproof net (17) is provided on one side of the heat dissipation holes (9).

8. The touch display device for rail transit operation management interface according to claim 1, characterized in that: The dynamic cover (10) is only in contact with one group of the heat dissipation holes (9) when closed. A rotating shaft (18) is provided on one side of the dynamic cover (10). The other side of the dynamic cover (10) is connected to the rotating motor (11). The rotating motor (11) drives the dynamic cover (10) to rotate along the heat dissipation housing (8), thereby moving the dynamic cover (10) away from the heat dissipation holes (9).

9. A touch display device for a rail transit operation management interface according to claim 8, characterized in that: The opening and closing structure (12) comprises a water tank (1201), an electromagnetic switch (1202), a telescopic cover (1203), a pressure sensing component (1204) and a pressure relief seam (1205); the electromagnetic switch (1202) is provided at the connection between the water tank (1201) and the auxiliary heat dissipation copper tube (4); a telescopic cover (1203) is provided on one side of the electromagnetic switch (1202); a pressure sensing component (1204) is provided on one side of the telescopic cover (1203); one end of the pressure sensing component (1204) is connected to the rotating motor (11); the other end of the pressure sensing component (1204) is provided with a pressure relief seam (1205); one side of the pressure relief seam (1205) is connected to the auxiliary cooling tube (13).

10. A touch display device for a rail transit operation management interface according to claim 9, characterized in that: The electromagnetic switch (1202) is controlled by the control main board (2) to generate a flow of water inside the auxiliary heat dissipation copper tube (4) through the connection device (5), thereby causing the pressure sensing component (1204) to start the rotating motor (11) to rotate the dynamic cover (10).

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