Obstetrical clinical lighting device

Abstract

The clinical lighting device comprises a shadowless lamp body, a packaging substrate, a fixing cylinder, a heat dissipation mechanism, an adjusting mechanism and a cooling mechanism, and the heat dissipation mechanism achieves efficient heat dissipation of heat of the packaging substrate through a cylindrical shell, a fixing column, fan blades and a gear transmission system; the adjusting mechanism pushes a cylindrical barrel to move through ethyl alcohol which is prone to thermal expansion in a cylindrical shell, the angle of fan blades is adjusted through meshing transmission of a rack and a gear, and therefore the heat dissipation air volume is automatically adjusted according to temperature changes, and the cooling mechanism achieves circulating flowing of cooling liquid through a liquid storage box, a U-shaped pipe, a circulating pipe and a piston plate. According to the shadowless lamp, the packaging substrate is continuously cooled, the stability of the shadowless lamp during long-time high-load operation is ensured, efficient heat dissipation of the internal temperature of the shadowless lamp is achieved, the service life of the shadowless lamp is remarkably prolonged, and the reliability and safety of the shadowless lamp in obstetrical clinic are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of obstetric clinical lighting, and specifically to an obstetric clinical lighting device. Background Art

[0002] In obstetric clinics, lighting devices are crucial for ensuring that doctors or nurses have a clear view during various operations. For example, during cesarean section surgeries, lighting devices are needed to provide sufficient illumination. However, lighting devices need to maintain stable performance during long-term use while avoiding affecting the lighting effect or creating safety hazards due to overheating. The LED chip is the core light-emitting component of the lighting lamp, and a large amount of heat is generated during operation. If this heat cannot be dissipated in time, it will cause the chip temperature to rise, affecting the luminous efficiency and lifespan, and may even damage the chip, leading to excessive local voltage load and resulting in a short circuit, posing risks of electric shock and fire, which affects its service life and performance. To improve the reliability and safety of obstetric clinical lighting devices, a lighting device with an efficient heat dissipation function needs to be designed.

[0003] The existing Chinese patent with the publication number CN219735255U includes a round box. At the center of the bottom of the round box, a lamp holder is installed, and a shadowless lamp is installed at the installation end of the lamp holder. A rotary heat dissipation component is installed inside the round box, and the rotary heat dissipation component can rotate inside the round box. Four air inlets are equidistantly arranged on the arc-shaped outer wall surface of the round box, and a filter screen is installed inside the air inlets. An air outlet is opened at the top of the round box, and a perforated plate is installed inside the air outlet.

[0004] When the above device is in use, the air is blown downward through the perforated plate and directly blows on the top of the shadowless lamp. That is, when the shadowless lamp is used in summer, it is further cooled from its top to ensure the heat dissipation effect of the central component during operation, thereby avoiding a large temperature difference between the inside and outside of the shadowless lamp and hot air entering the inside of the shadowless lamp, and further avoiding excessive local voltage load leading to a short circuit, providing protection for it. However, in actual use, since the chip temperature of the lighting device will gradually increase during long-term use, and the fan blade angle is fixed, and the heat dissipation air volume is also the same, it is easy to cause the lighting device to overheat, affecting the lighting effect and service life, and unable to meet the requirements in different scenarios. Therefore, it is difficult to automatically adjust the fan blade air volume according to the temperature inside the lighting device.

[0005] Therefore, we propose an obstetric clinical lighting device. Summary of the Invention

[0006] The purpose of the present invention is to provide an obstetric clinical lighting device, which has the advantage of automatically adjusting the fan blade air volume according to the temperature inside the lighting device, and solves the problems in the background art.

[0007] To achieve the above object, the present invention provides the following technical solution: An obstetric clinical lighting device includes a shadowless lamp body, and a packaging substrate for conducting the heat of the chip is fixedly connected to the shadowless lamp body. A fixed cylinder is fixedly connected to the shadowless lamp body, and a plurality of ventilation holes for the external air to flow through are opened on the outer contour of the end of the fixed cylinder close to the shadowless lamp body. A heat dissipation mechanism for dissipating the heat of the packaging substrate is provided on the fixed cylinder. The heat dissipation mechanism includes a circular plate fixedly connected to the inner wall of the fixed cylinder. One side of the circular plate is fixedly connected with an n-shaped frame. A cylindrical shell is penetrated and rotatably connected to the n-shaped frame. The end of the cylindrical shell is penetrated and fixedly connected with a fixed column. A plurality of uniformly arranged fan blades are fixedly connected to the outer contour of the fixed column near the bottom end and are rotatably connected coaxially. The cylindrical shell is penetrated and rotatably connected by the fan blades. An external tooth ring is fixedly connected to the outer contour of the bottom end of the cylindrical shell. A first gear driven by a power mechanism is penetrated and rotatably connected to one side of the n-shaped frame close to the cylindrical shell. An adjustment mechanism for adjusting the heat dissipation air volume of the fixed column is provided on the cylindrical shell.

[0008] Preferably, the adjustment mechanism includes a cylindrical tube that is connected to the inner wall of the cylindrical shell in a lifting and moving manner. A plurality of uniformly arranged moving grooves are opened at positions corresponding to the fan blades on the cylindrical tube. A rack for rotating and adjusting the angle of the fan blades is fixedly connected to the corresponding position on one side of each moving groove. A second gear that meshes with the rack is coaxially fixedly connected to each fan blade. And alcohol that is easily heated and expanded is provided on the inner wall of the cylindrical shell away from the fixed column.

[0009] Preferably, a first crank is fixedly connected to the end of the cylindrical shell away from the fixed column. A third gear is rotatably connected to the end of the first crank away from the fixed column. The inner wall of the circular plate is penetrated and rotatably connected with an internal tooth ring. And the teeth on the third gear and the internal tooth ring mesh with each other.

[0010] Preferably, a U-shaped frame is fixedly connected to the side of the circular plate away from the n-shaped frame. A support groove is opened on the U-shaped frame. A rectangular shell that moves horizontally back and forth is movably connected to the inner wall of the U-shaped frame. A rectangular frame is fixedly connected to the side of the rectangular shell close to the third gear. A second crank for supporting the rectangular frame is fixedly connected to the end of the third gear away from the first crank. An end of the second crank away from the third gear is fixedly connected with a movable block. And the movable block penetrates into the inner wall of the rectangular frame and movably supports it. An auxiliary mechanism for driving the rectangular shell to move horizontally back and forth is provided on the circular plate.

[0011] Preferably, the auxiliary mechanism includes a worm that is rotatably connected to a fixed shaft on one side of the annular plate close to the U-shaped frame and is driven to rotate by a power mechanism. One end of the fixed column close to the cylindrical barrel is fixedly connected with a push switch, and the push switch is electrically connected to the above-mentioned power mechanism.

[0012] Preferably, a fixed ring is fixedly connected to the outer contour of the internal gear ring. A worm gear groove for meshing transmission with the worm is provided on the outer contour of the fixed ring. A cooling mechanism for circulating cooling the encapsulation substrate is provided on the fixed barrel.

[0013] Preferably, the cooling mechanism includes a liquid storage tank for storing coolant fixedly connected to the outer wheel of the fixed barrel. The fixed barrel is penetrated and fixedly connected with a U-shaped pipe communicated with the inside of the liquid storage tank. The rectangular shell is penetrated by the U-shaped pipe and movably connected. Liquid inlet pipes and liquid discharge pipes are fixedly connected to symmetric positions at both ends of the rectangular shell. The ends of the liquid inlet pipes and liquid discharge pipes far away from the rectangular shell are fixedly connected with circulation pipes for cooling the encapsulation substrate, and the circulation pipes are sleeved on the outer contour of the encapsulation substrate and fixedly connected.

[0014] Preferably, water passing holes for communicating the liquid storage tank with the inside of the rectangular shell are provided at symmetric positions at both ends of the U-shaped pipe. A second liquid inlet valve and a first liquid discharge valve for pumping and discharging the coolant inside the liquid storage tank into the circulation pipe are fixedly connected inside the liquid inlet pipe and the adjacent water passing hole. A second liquid discharge valve and a first liquid inlet valve for pumping and discharging the coolant inside the circulation pipe into the liquid storage tank are fixedly connected inside the liquid discharge pipe and the adjacent water passing hole. A piston plate for circulating and pumping the coolant inside the liquid storage tank is fixedly connected to the U-shaped pipe at positions corresponding to the first liquid inlet valve and the first liquid discharge valve on both sides.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: First, through the design of the heat dissipation mechanism, by using the cylindrical shell, the fixed column, the fan blades and the gear transmission system, efficient heat dissipation of the encapsulation substrate is achieved. The fan blades are rotated through the meshing transmission of the outer gear ring and the first gear, which can quickly discharge the heat on the encapsulation substrate, improve the heat dissipation efficiency, avoid chip damage caused by excessive temperature, significantly extend the service life of the shadowless lamp, and ensure its stability during long-term high-load operation.

[0016] II. By arranging alcohol that is easily heated and expanded inside the cylindrical shell, and utilizing the thermal expansion characteristics of alcohol to push the cylindrical tube to move up and down inside the cylindrical shell, the rack on the cylindrical tube meshes with the second gear on the fan blade, thereby realizing the automatic adjustment of the angle of the fan blade. When the temperature inside the shadowless lamp rises, the alcohol expands and pushes the cylindrical tube to move, increasing the rotation angle of the fan blade and increasing the heat dissipation air volume; when the temperature drops, the alcohol contracts, and the angle of the fan blade automatically decreases, reducing the heat dissipation air volume. This automatic adjustment mechanism based on the thermal expansion principle can achieve precise control of the heat dissipation air volume without external sensors or complex control systems, saving costs and improving the reliability and intelligence level of the system.

[0017] III. Through the cooperation of the liquid storage tank, U-shaped tube, circulation pipe, and piston plate, the circulating flow of the coolant is realized, continuously cooling the encapsulated substrate. The rectangular shell moves horizontally back and forth under the action of the auxiliary mechanism. Through the cooperation of the liquid inlet pipe and the liquid discharge pipe, the coolant in the liquid storage tank is pumped into the circulation pipe to cool the encapsulated substrate, and then the used coolant is discharged back to the liquid storage tank. This circulating cooling system can not only effectively reduce the temperature of the encapsulated substrate, but also automatically adjust the flow rate of the coolant according to the heat dissipation requirements to ensure that the shadowless lamp always maintains a stable temperature during long-term operation. In addition, the cooling mechanism is combined with the heat dissipation mechanism to further enhance the heat dissipation ability of the shadowless lamp, enabling it to maintain good lighting effects and service life during high-load operation.

[0018] By using the above-mentioned structures in combination, the problems in the existing device during actual use are solved. During long-term use of the lighting device, the temperature of the chip will gradually rise, the angle of the fan blade is fixed, and the heat dissipation air volume is also the same, which easily leads to overheating of the lighting device, affecting the lighting effect and service life, and being unable to meet the requirements in different scenarios. Therefore, it is difficult to automatically adjust the fan air volume according to the temperature inside the lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present invention; Figure 2 It is a three-dimensional structure sectional view of the fixed cylinder of the present invention; Figure 3 It is a three-dimensional structure schematic diagram of the part where the U-shaped frame is located in the present invention; Figure 4 It is a three-dimensional structure sectional view of the part where the internal gear ring is located in the present invention; Figure 5 It is a three-dimensional structure sectional view of the cylindrical shell of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure domain at A in Figure 7Schematic cross-sectional view of the three-dimensional structure of the rectangular housing of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at position B in Figure 9 For the present invention Figure 7 Schematic diagram of the structure at position C in Figure 10 For the present invention Figure 7 Schematic diagram of the structure at position D in Figure 11 Schematic three-dimensional structure diagram of the part where the rack of the present invention is located.

[0020] In the figure: 1, the body of the shadowless lamp; 2, the fixed cylinder; 201, the ventilation hole; 3, the annular plate; 4, the n-shaped frame; 5, the cylindrical housing; 6, the fixed column; 7, the fan blade; 8, the first gear; 9, the external tooth ring; 10, the cylindrical tube; 101, the moving groove; 11, the rack; 12, the second gear; 13, the first crank; 14, the third gear; 15, the internal tooth ring; 16, the U-shaped frame; 161, the support groove; 17, the rectangular housing; 18, the rectangular frame; 19, the second crank; 20, the movable block; 21, the encapsulation substrate; 22, the circulation pipe; 23, the liquid storage tank; 24, the U-shaped pipe; 241, the water passing hole; 242, the first liquid inlet valve; 243, the first liquid discharge valve; 25, the piston plate; 26, the liquid inlet pipe; 261, the second liquid inlet valve; 27, the liquid discharge pipe; 271, the second liquid discharge valve; 28, the fixed ring; 281, the worm gear groove; 29, the worm; 30, the push switch. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1:

[0022] Please refer to Figures 1 to 11 , the present invention provides a technical solution: an obstetric clinical lighting device, including the body of the shadowless lamp 1, and an encapsulation substrate 21 for conducting the heat of the chip is fixedly connected to the body of the shadowless lamp 1. A fixed cylinder 2 is fixedly connected to the body of the shadowless lamp 1, and a plurality of ventilation holes 201 for the external air to flow through are opened on the outer contour of one end of the fixed cylinder 2 close to the body of the shadowless lamp 1. A heat dissipation mechanism for dissipating the heat of the encapsulation substrate 21 is provided on the fixed cylinder 2; The heat dissipation mechanism includes an annular plate 3 fixedly connected to the inner wall of the fixed cylinder 2. One side of the annular plate 3 is fixedly connected with an N-shaped frame 4. The N-shaped frame 4 is penetrated and rotatably connected with a cylindrical shell 5. The end of the cylindrical shell 5 is penetrated and fixedly connected with a fixed column 6. A plurality of evenly arranged fan blades 7 are rotatably connected to the outer contour of the fixed column 6 near the bottom end. The cylindrical shell 5 is penetrated by the fan blades 7 and rotatably connected. An external tooth ring 9 is fixedly connected to the outer contour of the bottom end of the cylindrical shell 5. One side of the N-shaped frame 4 close to the cylindrical shell 5 is penetrated and rotatably connected with a first gear 8 driven by a power mechanism to rotate. An adjusting mechanism for adjusting the heat dissipation air volume of the fixed column 6 is provided on the cylindrical shell 5.

[0023] During use, by setting the shadowless lamp body 1, the lighting needs of obstetric medical staff in clinical work can be met, such as providing appropriate lighting conditions in links such as childbirth, surgery, and examination. Since a large amount of heat is generated by the chip during the long-term use of the shadowless lamp body 1, it is easy to cause damage to the chip, affecting the light-emitting efficiency and lifespan of the shadowless lamp body 1. Through the encapsulation substrate 21 provided on the shadowless lamp body 1, and the encapsulation substrate 21 can encapsulate the chip of the shadowless lamp body 1 inside, so that the fixed cylinder 2 can conduct the heat on the chip of the shadowless lamp body 1, facilitating subsequent heat dissipation of the shadowless lamp body 1 and improving the heat dissipation efficiency.

[0024] Through the fixed cylinder 2 provided on the shadowless lamp body 1 and the annular plate 3 provided on the fixed cylinder 2, the fixed cylinder 2 can fixedly support the annular plate 3 on the shadowless lamp body 1. Through the N-shaped frame 4 provided on the annular plate 3, the N-shaped frame 4 is fixedly supported on the annular plate 3. And the cylindrical shell 5 provided on the N-shaped frame 4 can be rotatably connected to the N-shaped frame 4. Through the fixed column 6 provided on the cylindrical shell 5 and the fan blades 7 provided on the fixed column 6, the fixed column 6 can fixedly support the fan blades 7 on the cylindrical shell 5. Through the first gear 8 provided on the N-shaped frame 4 and the first gear 8 is driven by a motor to rotate, the motor can drive the first gear 8 to rotate on the N-shaped frame 4. Through the external tooth ring 9 provided on the cylindrical shell 5 and the external tooth ring 9 is engaged and driven with the first gear 8, the external tooth ring 9 can drive the cylindrical shell 5 to rotate synchronously under the action of the first gear 8. Thus, the cylindrical shell 5 can drive the fan blades 7 to rotate to discharge the heat on the encapsulation substrate 21 to the outside. And the ventilation holes 201 opened on the fixed cylinder 2 ensure the air fluidity inside the fixed cylinder 2, further realizing the heat dissipation of the shadowless lamp body 1.

[0025] Moreover, the fan blades 7 are rotatably connected to the cylindrical shell 5 and the fixed column 6. Through the adjusting mechanism provided on the cylindrical shell 5, the adjusting mechanism can automatically adjust the angle of the fan blades 7 according to the temperature of the shadowless lamp body 1, realizing the adjustment of the air volume of the fan blades 7. Embodiment 2:

[0026] On the basis of Embodiment 1, furthermore: The adjusting mechanism includes that a cylindrical cylinder 10 is connected to the inner wall of the cylindrical shell 5 in a lifting and moving manner. A plurality of uniformly arranged moving grooves 101 are opened at the corresponding positions of the cylindrical cylinder 10 and the fan blades 7. At the corresponding positions on one side of each moving groove 101, racks 11 for rotating and adjusting the angles of the fan blades 7 are fixedly connected. A second gear 12 meshing with the racks 11 is coaxially fixed to each fan blade 7. And alcohol that is prone to heat expansion is provided on the inner wall of the end of the cylindrical shell 5 far from the fixed column 6.

[0027] During use, through the cylindrical cylinder 10 provided on the cylindrical shell 5, the cylindrical cylinder 10 is connected to the inner wall of the cylindrical shell 5 in a lifting and moving manner. Through the moving grooves 101 opened on the cylindrical cylinder 10, the moving grooves 101 are sleeved on the adjacent fan blades 7. Through the racks 11 provided on the moving grooves 101 and the second gears 12 provided on the fan blades 7, the second gears 12 can be meshed with the racks 11 for transmission. And the alcohol provided on the cylindrical shell 5, along with the fan blades 7 discharging the heat on the encapsulated substrate 21 to the outside for heat dissipation, enables the cylindrical shell 5 to conduct part of the heat to the inside. And the alcohol inside the cylindrical shell 5 can expand according to the temperature change, and can push the cylindrical cylinder 10 to move towards the end close to the fixed column 6. And the cylindrical cylinder 10 can drive the racks 11 to move synchronously. Thus, the second gears 12 can adjust the angles of the fan blades 7 under the action of the racks 11, and the rotation angles of the fan blades 7 increase. Furthermore, the heat dissipation air volume of the fan blades 7 to the fixed cylinder 2 increases synchronously, realizing automatically adjusting the air volume of the fan blades 7 according to the temperature of the shadowless lamp body 1.

[0028] When the temperature of the shadowless lamp body 1 decreases, the volume of the alcohol shrinks, enabling the above structure to move in the opposite direction for resetting. Embodiment 3:

[0029] On the basis of Embodiment 2, furthermore: One end of the cylindrical shell 5 far from the fixed column 6 is fixedly connected with a first crank 13. One end of the first crank 13 far from the fixed column 6 is rotatably connected to a third gear 14 by a fixed shaft. The inner wall of the annular plate 3 is penetrated and rotatably connected with an internal gear ring 15. And the teeth of the third gear 14 and the internal gear ring 15 are meshed with each other.

[0030] On the side of the annular plate 3 away from the N-shaped frame 4, a U-shaped frame 16 is fixedly connected. A support groove 161 is formed on the U-shaped frame 16. A rectangular shell 17 that moves horizontally back and forth is movably connected to the inner wall of the U-shaped frame 16. A rectangular frame 18 is fixedly connected to the side of the rectangular shell 17 close to the third gear 14. A second crank 19 that supports the rectangular frame 18 is fixedly connected to the end of the third gear 14 away from the first crank 13. An end of the second crank 19 away from the third gear 14 is fixedly connected to a movable block 20, and the movable block 20 penetrates into the inner wall of the rectangular frame 18 and is movably supported. An auxiliary mechanism for driving the rectangular shell 17 to move horizontally back and forth is provided on the annular plate 3.

[0031] Through the first crank 13 provided on the cylindrical shell 5, and the first crank 13 is fixedly supported on the cylindrical shell 5, the cylindrical shell 5 can drive the first crank 13 to rotate synchronously. And the third gear 14 provided on the first crank 13, the first crank 13 can drive the third gear 14 to perform circular motion under the action of the cylindrical shell 5. Through the internal gear ring 15 provided on the annular plate 3, the internal gear ring 15 can be engaged with the third gear 14 for transmission, and the third gear 14 is rotatably supported on the first crank 13. Along with the first crank 13 driving the third gear 14 to perform circular motion, the third gear 14 can perform fixed-axis rotation on the first crank 13 under the action of the internal gear ring 15.

[0032] Through the U-shaped frame 16 provided on the annular plate 3, the U-shaped frame 16 is fixedly supported on the annular plate 3. Through the support groove 161 formed on the U-shaped frame 16, and the rectangular shell 17 provided on the support groove 161, the support groove 161 can support the moving direction of the rectangular shell 17. Through the rectangular frame 18 provided on the rectangular shell 17, the rectangular frame 18 is fixedly supported on the rectangular shell 17. Through the second crank 19 provided on the third gear 14, the third gear 14 can drive the second crank 19 to perform fixed-axis rotation. And the movable block 20 provided on the second crank 19, the movable block 20 is movably supported on the inner wall of the rectangular frame 18. And the auxiliary mechanism provided on the annular plate 3. When the cylindrical tube 10 moves to the extreme position at one end of the fixed column 6, the auxiliary mechanism can adjust the position of the second crank 19, and the second crank 19 can drive the rectangular frame 18 and the rectangular shell 17 to move horizontally back and forth along the inner wall of the support groove 161 through the movable block 20, so as to cool the encapsulation substrate 21 subsequently. Embodiment 4:

[0033] On the basis of Embodiment 3, further: The auxiliary mechanism includes a worm 29 rotatably connected to a fixed axis on one side of the annular plate 3 close to the U-shaped frame 16 and driven to rotate by a power mechanism. One end of the fixed column 6 close to the cylindrical barrel 10 is fixedly connected with a push switch 30, and the push switch 30 is electrically connected to the above-mentioned power mechanism.

[0034] A fixed ring 28 is fixedly connected to the outer contour of the internal gear ring 15. A worm gear groove 281 engaged with the worm 29 is formed on the outer contour of the fixed ring 28. A cooling mechanism for circulating cooling of the packaging substrate 21 is provided on the fixed cylinder 2.

[0035] During use, the worm 29 provided on the annular plate 3 supports the rotation of the worm 29 on the annular plate 3. The fixed ring 28 provided on the internal gear ring 15 fixes and supports the fixed ring 28 on the internal gear ring 15. The worm gear groove 281 formed on the fixed ring 28 enables the worm gear groove 281 to be engaged with the worm 29 for transmission. The push switch 30 provided on the fixed column 6 and the worm 29 is driven to rotate by a motor, so that the push switch 30 is electrically connected to the motor on the worm 29.

[0036] In the initial state, the rectangular frame 18 is in a stationary state. At the same time, the second crank 19 drives the movable block 20 to reciprocate along the inner wall of the rectangular frame 18 under the action of the third gear 14. When the cylindrical barrel 10 moves to the extreme position at one end of the fixed column 6, at this time, the fan blade 7 is difficult to meet the heat dissipation requirements of the packaging substrate 21, and the cylindrical barrel 10 abuts against and presses the push switch 30, so that the motor is started under the action of the push switch 30 and drives the worm 29 to rotate around a fixed axis. Along with the meshing transmission between the worm 29 and the worm gear groove 281, the fixed ring 28 can drive the internal gear ring 15 to rotate on the inner wall of the annular plate 3 under the action of the worm 29. The rotation speed of the third gear 14 changes under the action of the internal gear ring 15, enabling the second crank 19 to adjust the position of the movable block 20 under the action of the third gear 14, and the movable block 20 can pull the rectangular frame 18 and the rectangular housing 17 to reciprocate horizontally on the inner wall of the support groove 161. Along with the cooling mechanism provided on the fixed cylinder 2, the cooling mechanism can cool the packaging substrate 21 under the action of the rectangular housing 17. Embodiment Five:

[0037] On the basis of Embodiment Four, further: The cooling mechanism includes a liquid storage tank 23 for storing coolant fixedly connected to the outer wheel of the fixed cylinder 2. The fixed cylinder 2 is penetrated and fixedly connected with a U-shaped pipe 24 communicating with the inside of the liquid storage tank 23. The rectangular housing 17 is penetrated by the U-shaped pipe 24 and movably connected. At symmetric positions at both ends of the rectangular housing 17, a liquid inlet pipe 26 and a liquid discharge pipe 27 are fixedly connected. The ends of the liquid inlet pipe 26 and the liquid discharge pipe 27 far from the rectangular housing 17 are fixedly connected with a circulation pipe 22 for cooling the packaged substrate 21, and the circulation pipe 22 is sleeved on the outer contour of the packaged substrate 21 and fixedly connected.

[0038] Water through holes 241 for communicating the liquid storage tank 23 with the inside of the rectangular housing 17 are opened at symmetric positions at both ends of the U-shaped pipe 24. A second liquid inlet valve 261 and a first liquid discharge valve 243 for pumping and discharging the coolant inside the liquid storage tank 23 into the circulation pipe 22 are fixedly connected inside the liquid inlet pipe 26 and the water through hole 241 at the adjacent end. A second liquid discharge valve 271 and a first liquid inlet valve 242 for pumping and discharging the coolant inside the circulation pipe 22 into the liquid storage tank 23 are fixedly connected inside the liquid discharge pipe 27 and the water through hole 241 at the adjacent end. A piston plate 25 for circulating and pumping the coolant inside the liquid storage tank 23 is fixedly connected at a position corresponding to the first liquid inlet valve 242 and the first liquid discharge valve 243 on both sides of the U-shaped pipe 24.

[0039] During use, the coolant is stored inside the liquid storage tank 23 through the liquid storage tank 23 provided on the fixed cylinder 2. The U-shaped pipe 24 provided on the fixed cylinder 2 enables the U-shaped pipe 24 to be fixedly supported on the fixed cylinder 2, and the water through holes 241 opened on the U-shaped pipe 24 can communicate the liquid storage tank 23 with the inner wall of the rectangular housing 17. Through the liquid inlet pipe 26 and the liquid discharge pipe 27 provided on the rectangular housing 17, and the circulation pipe 22 provided on the liquid inlet pipe 26 and the liquid discharge pipe 27, the liquid inlet pipe 26 and the liquid discharge pipe 27 can communicate the circulation pipe 22 with the inner wall of the rectangular housing 17, so as to facilitate the subsequent circulation of the coolant inside the liquid storage tank 23. The circulation pipe 22 is sleeved on the packaged substrate 21, enabling the circulation pipe 22 to cool the packaged substrate 21 through the coolant.

[0040] Through the piston plate 25 provided on the U-shaped tube 24, and the piston plate 25 is fixedly supported on the U-shaped tube 24, the piston plate 25 can be attached to and movably connected to the inner wall of the rectangular housing 17. Through the first liquid inlet valve 242 and the first liquid discharge valve 243 provided on the water through hole 241, and the second liquid inlet valve 261 and the second liquid discharge valve 271 provided on the liquid inlet pipe 26 and the liquid discharge pipe 27, when the rectangular housing 17 drives the liquid inlet pipe 26 to move horizontally in the direction close to the piston plate 25, the internal air pressure at one end of the rectangular housing 17 close to the liquid inlet pipe 26 is positive pressure, and the internal air pressure at one end of the rectangular housing 17 close to the liquid discharge pipe 27 is in a negative pressure state. At this time, the first liquid inlet valve 242 and the first liquid discharge valve 243 are in a closed state, and the second liquid inlet valve 261 and the second liquid discharge valve 271 are in an open state, which can enable the liquid discharge pipe 27 to extract the used coolant inside the circulation pipe 22 to the inside of the adjacent end of the rectangular housing 17. At the same time, the liquid inlet pipe 26 can fill the coolant at the adjacent end of the rectangular housing 17 to the inner wall of the circulation pipe 22, realizing the replacement of the coolant inside the circulation pipe 22 and improving the cooling effect on the packaging substrate 21.

[0041] When the rectangular housing 17 drives the liquid inlet pipe 26 to move back in the direction away from the piston plate 25, the internal air pressure at one end of the rectangular housing 17 close to the liquid inlet pipe 26 is negative pressure, and the internal air pressure at one end of the rectangular housing 17 close to the liquid discharge pipe 27 is in a positive pressure state. At this time, the first liquid inlet valve 242 and the first liquid discharge valve 243 are in an open state, and the second liquid inlet valve 261 and the second liquid discharge valve 271 are in a closed state. Thus, the first liquid discharge valve 243 can extract the coolant inside the liquid storage tank 23 to the inside of the adjacent end of the rectangular housing 17 through the water through hole 241. At the same time, the first liquid inlet valve 242 discharges the used coolant at the adjacent end to the inside of the liquid storage tank 23, further realizing the circulation of the coolant inside the circulation pipe 22 and further improving the cooling effect on the packaging substrate 21.

[0042] Furthermore, it is realized that during the actual use of the existing device, the air volume of the fan blades can be automatically adjusted according to the temperature inside the lighting device, which is convenient to use and better than traditional products.

[0043] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the instructions and drawings, they can also be directly processed without any doubt according to the existing technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology, so no specific description will be made here.

[0044] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An obstetric clinical lighting device, characterized in that: It includes a shadowless lamp body (1), and a packaging substrate (21) for conducting the heat of the chip is fixedly connected to the shadowless lamp body (1). A fixed cylinder (2) is fixedly connected to the shadowless lamp body (1), and a plurality of ventilation holes (201) for the external air to flow through are formed on the outer contour of one end of the fixed cylinder (2) close to the shadowless lamp body (1). A heat dissipation mechanism for dissipating the heat of the packaging substrate (21) is provided on the fixed cylinder (2). The heat dissipation mechanism includes that an annular plate (3) is fixedly connected to the inner wall of the fixed cylinder (2). An n-shaped frame (4) is fixedly connected to one side of the annular plate (3). A cylindrical shell (5) is penetrated and rotatably connected to the n-shaped frame (4). A fixed column (6) is penetrated and fixedly connected to the end of the cylindrical shell (5). A plurality of evenly arranged fan blades (7) are rotatably connected to the outer contour of the fixed column (6) near the bottom end by fixed axes, and the cylindrical shell (5) is penetrated and rotatably connected by the fan blades (7). An external toothed ring (9) is fixedly connected to the outer contour of the bottom end of the cylindrical shell (5), and a first gear (8) driven by a power mechanism to rotate is penetrated and rotatably connected to one side of the n-shaped frame (4) close to the cylindrical shell (5). An adjusting mechanism for adjusting the heat dissipation air volume of the fixed column (6) is provided on the cylindrical shell (5).

2. The obstetric clinical lighting device according to claim 1, characterized in that: The adjusting mechanism includes that a cylindrical tube (10) is connected to the inner wall of the cylindrical shell (5) in a lifting and moving manner. A plurality of evenly arranged moving grooves (101) are formed at the positions corresponding to the fan blades (7) on the cylindrical tube (10). A rack (11) for rotating and adjusting the angle of the fan blade (7) is fixedly connected to the corresponding position on one side of each moving groove (101). A second gear (12) meshing with the rack (11) is coaxially fixed to each fan blade (7), and alcohol that is easily heated and expanded is provided on the inner wall of the end of the cylindrical shell (5) far from the fixed column (6).

3. The obstetric clinical lighting device according to claim 2, characterized in that: A first crank (13) is fixedly connected to the end of the cylindrical shell (5) far from the fixed column (6). A third gear (14) is rotatably connected to the end of the first crank (13) far from the fixed column (6) by a fixed axis. The inner wall of the annular plate (3) is penetrated and rotatably connected to an internal toothed ring (15), and the teeth on the third gear (14) and the internal toothed ring (15) are meshed with each other.

4. The obstetric clinical lighting device according to claim 3, characterized in that: On the side of the annular plate (3) away from the N-shaped frame (4), a U-shaped frame (16) is fixedly connected. A support groove (161) is formed in the U-shaped frame (16). A rectangular housing (17) that moves horizontally back and forth is movably connected to the inner wall of the U-shaped frame (16). A rectangular frame (18) is fixedly connected to the side of the rectangular housing (17) close to the third gear (14). A second crank (19) that supports the rectangular frame (18) is fixedly connected to the end of the third gear (14) away from the first crank (13). An active block (20) is fixedly connected to the end of the second crank (19) away from the third gear (14), and the active block (20) penetrates through the inner wall of the rectangular frame (18) and is movably supported. An auxiliary mechanism for driving the rectangular housing (17) to move horizontally back and forth is provided on the annular plate (3).

5. An obstetric clinical lighting device according to claim 4, characterized in that: The auxiliary mechanism includes a worm (29) rotatably connected by a fixed axis on the side of the annular plate (3) close to the U-shaped frame (16) and driven to rotate by a power mechanism. A push switch (30) is fixedly connected to the end of the fixed column (6) close to the cylindrical tube (10). The push switch (30) is electrically connected to the above-mentioned power mechanism.

6. The obstetric clinical lighting device according to claim 5, wherein: A fixed ring (28) is fixedly connected to the outer contour of the internal gear ring (15). A worm gear groove (281) engaged with the worm (29) is formed on the outer contour of the fixed ring (28). A cooling mechanism for circulatingly cooling the encapsulated substrate (21) is provided on the fixed cylinder (2).

7. An obstetric clinical lighting device according to claim 6, characterized in that: The cooling mechanism includes a liquid storage tank (23) for storing coolant fixedly connected to the outer wheel of the fixed cylinder (2). The fixed cylinder (2) is penetrated and fixedly connected with a U-shaped tube (24) communicated with the inside of the liquid storage tank (23). The rectangular housing (17) is penetrated by the U-shaped tube (24) and movably connected. Liquid inlet pipes (26) and drain pipes (27) are fixedly connected to symmetric positions at both ends of the rectangular housing (17). The ends of the liquid inlet pipes (26) and drain pipes (27) away from the rectangular housing (17) are fixedly connected with circulation pipes (22) for cooling the encapsulated substrate (21), and the circulation pipes (22) are sleeved on the outer contour of the encapsulated substrate (21) and fixedly connected.

8. An obstetric clinical lighting device according to claim 7, characterized in that: Water passing holes (241) for communicating the liquid storage tank (23) with the inside of the rectangular housing (17) are formed at symmetric positions at both ends of the U-shaped tube (24). A second liquid inlet valve (261) and a first drain valve (243) for pumping and discharging the coolant inside the liquid storage tank (23) into the circulation pipe (22) are fixedly connected inside the liquid inlet pipe (26) and the adjacent water passing hole (241). A second drain valve (271) and a first liquid inlet valve (242) for pumping and discharging the coolant inside the circulation pipe (22) into the liquid storage tank (23) are fixedly connected inside the drain pipe (27) and the adjacent water passing hole (241). A piston plate (25) for circulatingly pumping the coolant inside the liquid storage tank (23) is fixedly connected to the position corresponding to the first liquid inlet valve (242) and the first drain valve (243) on both sides of the U-shaped tube (24).

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