A hydroelectric generating set hunting sensor signal conditioning device

Abstract

The application discloses a water-turbine-generator-group vibration sensor signal conditioning device, and belongs to the technical field of water-turbine-generator groups. The device comprises a shell, a rotary knob is assembled at the front end of the shell, gear position marks are arranged at the corresponding positions of the front end of the shell and the rotary knob, a power adapter is arranged on the upper side of one end of the shell, a plurality of signal interfaces are arranged on the lower side of one end of the shell, a heat dissipation assembly for dissipating heat in the shell is arranged at the end of the shell away from the power adapter, and a fixing assembly for limiting and fixing the plug is arranged at the corresponding position of one end of the shell and the signal interfaces. The fixing assembly comprises a fixing seat. The application realizes automatic clamping and fixing of the sensor plug through the fixing assembly. The clamping plate can be elastically avoided when the plug is plugged in. After being plugged in, the clamping plate is automatically locked by the spring, thereby effectively preventing loosening and signal interruption caused by vibration and external force. The device adopts a pressing type one-hand operation structure, greatly improves the convenience of plug-in and plug-out, and is more stable and reliable in device connection.

Description

Technical Field

[0001] This invention belongs to the field of hydropower unit technology, specifically relating to a signal conditioning device for a hydropower unit oscillation sensor. Background Technology

[0002] A hydroelectric generator is a device that uses water flow to generate electricity through a turbine, and it is a core component of a hydroelectric power station. During operation, hydroelectric generators may vibrate due to various reasons. These vibrations not only affect the efficiency and lifespan of the unit but may also cause equipment damage. To accurately monitor the operating status of hydroelectric generators and ensure their safe and stable operation, researchers and engineers have designed and used various types of sensors, including vibration sensors. Vibration sensors are mainly used to detect the degree of swaying of the equipment. By capturing the signals, the operating condition of the equipment can be understood, and potential faults can be detected in a timely manner.

[0003] The existing hydropower unit vibration sensor signal conditioning device does not have a plug limiting and fixing structure at its signal interface. Under the vibration of the unit during operation and the action of external forces, the plug is very easy to loosen or fall off, causing signal interruption. At the same time, the device as a whole lacks an effective heat dissipation structure, and the heat of the internal electrical components is difficult to dissipate. This can easily lead to decreased working stability, accuracy deviation and shortened service life due to excessive temperature rise. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a signal conditioning device for a hydroelectric generator oscillation sensor, which features stable and reliable interface connection and efficient overall heat dissipation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hydroelectric generator oscillation sensor signal conditioning device, comprising a housing, a knob mounted on the front end of the housing, a gear indicator at the position corresponding to the knob on the front end of the housing, a power adapter on the upper side of one end of the housing, a plurality of signal interfaces on the lower side of one end of the housing, a heat dissipation component for cooling the interior of the housing at the end of the housing away from the power adapter, and a fixing component for limiting and fixing the plug at the position corresponding to the signal interfaces at one end of the housing; The fixing component includes a fixing seat. The fixing seat is fixed at one end of the housing corresponding to the position of the signal interface. A through groove is opened in the fixing seat corresponding to the position of the signal interface. Two sliders are slidably connected at both ends of the fixing seat. Slide grooves adapted to the sliders are opened at both ends of the fixing seat. A clamping plate is provided on one side of the slider. The clamping plate and the slider are connected by a connecting frame. A fixing rod is fixed in the slide groove. A spring is sleeved on one end of the slider and outside the fixing rod.

[0006] Preferably, the fixing component further includes a telescopic rod, with the telescopic rod fixed at both ends of the fixing seat at positions corresponding to the slider, and a pressing plate fixed at the other end of the telescopic rod, and a connecting rod rotatably connecting the pressing plate and the slider.

[0007] Preferably, the slider is configured as an I-shaped structure, and the side of the slider is in close contact with the inner wall of the groove.

[0008] Preferably, the slider has a sliding hole corresponding to the fixed rod, and a rubber anti-slip pad is glued to one end of the clamp.

[0009] Preferably, the connecting rod and the pressing plate, as well as the connecting rod and the slider, are rotatably connected by a pivot pin, and a sponge pad is fixed at one end of the pressing plate.

[0010] Preferably, when the telescopic rod retracts to its shortest stroke, the slider does not compress the spring to its maximum compression.

[0011] Preferably, the heat dissipation component includes a folded tube, one end of the housing is fixedly provided with the folded tube, both ends of the folded tube extend into the housing, and cavities are opened at both ends of the folded tube. An intake fan and an exhaust fan are respectively installed in the two cavities, and air vents are opened at the positions corresponding to the cavities at both ends of the folded tube.

[0012] Preferably, the heat dissipation assembly further includes a dustproof mesh, a dustproof mesh is snapped into the air vent, and a grip pad is fixed on the surface of the folded tube.

[0013] Preferably, a sloping seat is fixed in the cavity on the lower side at the position corresponding to the exhaust fan, and the end of the sloping seat near the exhaust fan is set as a sloping structure.

[0014] Preferably, after the dustproof mesh is connected to the air vent, the side of the dustproof mesh is flush with the side of the folded tube, and the bent part of the folded tube has an arc-shaped structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves automatic clamping and fixing of the sensor plug through a fixing component. When the plug is inserted, the clamp can elastically avoid it. After insertion, the spring drives the clamp to automatically lock, effectively preventing loosening and signal interruption caused by vibration and external force. The press-type one-handed operation structure greatly improves the convenience of plug insertion and removal, and the device connection is more stable and reliable.

[0016] 2. This invention achieves efficient convection cooling inside the housing through a heat dissipation component. The intake fan and exhaust fan work together to reduce internal temperature rise, ensuring the precision and service life of electrical components. The dust filter can block impurities, the inclined seat optimizes the exhaust path, and the folded tube also has a lifting function, making it comfortable to hold and enhancing overall safety and durability. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a rear-view perspective view of the present invention; Figure 3 This is a cross-sectional perspective view of the fixing base of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the folded tube of the present invention; In the diagram: 1. Housing; 2. Fixing assembly; 21. Fixing base; 22. Through groove; 23. Clamping plate; 24. Slider; 25. Connecting frame; 26. Slide groove; 27. Fixing rod; 28. Spring; 29. ​​Telescopic rod; 210. Pressing plate; 211. Connecting rod; 3. Heat dissipation assembly; 31. Bending tube; 32. Cavity; 33. Inlet fan; 34. Exhaust fan; 35. Air vent; 36. Dust filter; 37. Angled base; 38. Grip pad; 4. Power adapter; 5. Knob; 6. Gear position indicator; 7. Signal interface. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 Please see Figure 1-4 The present invention provides the following technical solution: a hydro-generator oscillation sensor signal conditioning device, including a housing 1, a knob 5 is mounted on the front end of the housing 1, a gear mark 6 is provided at the position corresponding to the knob 5 at the front end of the housing 1, a power adapter 4 is provided on the upper side of one end of the housing 1, a plurality of signal interfaces 7 are provided on the lower side of one end of the housing 1, a heat dissipation component 3 for cooling the interior of the housing 1 is provided at the end of the housing 1 away from the power adapter 4, and a fixing component 2 for limiting and fixing the plug is provided at the position corresponding to the signal interface 7 at one end of the housing 1. The fixing component 2 includes a fixing seat 21. The fixing seat 21 is fixed at one end of the housing 1 at the position corresponding to the signal interface 7. A through groove 22 is opened in the fixing seat 21 at the position corresponding to the signal interface 7. Two sliders 24 are slidably connected at both ends of the fixing seat 21. Slide grooves 26 adapted to the sliders 24 are opened at both ends of the fixing seat 21. A clamping plate 23 is provided on one side of the slider 24. The clamping plate 23 is connected to the slider 24 through a connecting frame 25. A fixing rod 27 is fixed in the slide groove 26. A spring 28 is sleeved on one end of the slider 24 and outside the fixing rod 27.

[0020] Specifically, the fixing component 2 also includes a telescopic rod 29. The telescopic rod 29 is fixed at both ends of the fixing base 21 at positions corresponding to the slider 24. A pressing plate 210 is fixed at the other end of the telescopic rod 29. A connecting rod 211 is rotatably connected between the pressing plate 210 and the slider 24. By adopting the above technical solution, when it is necessary to adjust the clamping plate 23, pressing the pressing plate 210 will cause the telescopic rod 29 to retract. The pressing plate 210 will synchronously drive the two sliders 24 to move through the connecting rod 211, which can realize one-handed operation and greatly improve the convenience of insertion and disassembly.

[0021] Specifically, the slider 24 is designed as an I-shaped structure, and the side of the slider 24 is tightly fitted to the inner wall of the slide groove 26. By adopting the above technical solution, the slider 24 adopts an I-shaped structure and is tightly fitted to the inner wall of the slide groove 26, which can improve the sliding guidance accuracy and stability, prevent shaking and deflection, ensure reliable plug clamping and positioning, and improve vibration resistance.

[0022] Specifically, the slider 24 has a sliding hole corresponding to the fixed rod 27, and a rubber anti-slip pad is glued to one end of the clamping plate 23. By adopting the above technical solution, the sliding hole is matched with the fixed rod 27 to ensure that the slider 24 slides smoothly without deviation. The rubber anti-slip pad increases the clamping friction to prevent the plug from sliding off and to avoid clamping damage to the plug, thus ensuring connection stability.

[0023] Specifically, the connecting rod 211 and the pressing plate 210, as well as the connecting rod 211 and the slider 24, are rotatably connected by a shaft pin. A sponge pad is fixed at one end of the pressing plate 210. By adopting the above technical solution, the shaft pin rotatable connection makes the transmission flexible and smooth, the action reliable and without jamming, and the sponge pad improves the pressing comfort, reduces the pressure on the hand, and facilitates stable one-handed operation.

[0024] Specifically, when the telescopic rod 29 retracts to its shortest stroke, the slider 24 does not compress the spring 28 to its maximum compression. By adopting the above technical solution, this structure can avoid the spring 28 being over-compressed, effectively prevent the spring 28 from undergoing plastic deformation or failure, ensure stable clamping force, extend the service life of the spring 28, and ensure long-term reliable operation of the device.

[0025] In this embodiment, the power adapter 4 is connected to an external power source. The plug of the hydro-generator vibration sensor is inserted into the signal interface 7 at one end of the housing 1. The gear is adjusted by rotating the knob 5 and referring to the gear mark 6, thereby completing the acquisition, amplification and conditioning of the hydro-generator vibration sensor signal.

[0026] During the docking process between the sensor plug and the signal interface 7, the two sliders 24 are pushed to slide outward along the slide groove 26. The spring 28 on the fixing rod 27 is compressed, providing clearance space for the clamping plate 23. After the plug is fully inserted into the signal interface 7, the sliders 24 are released, and the spring 28 rebounds to push the sliders 24 back to their original position. The sliders 24 drive the clamping plate 23 through the connecting bracket 25 to form a stable clamp on the sensor plug and the signal interface 7, thereby achieving the limit fixation of the plug and effectively avoiding the problems of plug loosening, falling off or signal interruption caused by unit operation vibration and external force pulling.

[0027] When the clamp 23 needs to be adjusted, press the pressing plate 210 to retract the telescopic rod 29. The pressing plate 210 drives the two sliders 24 to move synchronously through the connecting rod 211, which can realize one-handed operation and greatly improve the convenience of insertion and disassembly.

[0028] Example 2 The difference between this embodiment and embodiment 1 is that the heat dissipation assembly 3 includes a folded tube 31. One end of the housing 1 is fixed with the folded tube 31, and both ends of the folded tube 31 extend into the interior of the housing 1. Cavities 32 are opened at both ends of the folded tube 31. An intake fan 33 and an exhaust fan 34 are respectively installed in the two cavities 32. Air vents 35 are opened at the positions corresponding to the cavities 32 at both ends of the folded tube 31. By adopting the above technical solution, during the operation of the device, the heat generated by the electrical components inside the housing 1 is dissipated in time through the heat dissipation assembly 3. The intake fan 33 sends external cold air into the interior of the housing 1 through the upper air vent 35 and the cavity 32 to perform forced air cooling of the core electrical components. At the same time, the exhaust fan 34 discharges the internal hot air through the lower cavity 32 and the air vent 35, forming a stable convective heat exchange cycle, effectively controlling the temperature rise inside the housing 1, and avoiding component accuracy deviation, stability decrease and lifespan shortening due to excessive temperature.

[0029] Specifically, the heat dissipation component 3 also includes a dustproof mesh 36, which is snapped into the air vent 35. A grip pad 38 is fixed on the surface of the folded tube 31. By adopting the above technical solution, the dustproof mesh 36 at the air vent 35 can effectively block dust and impurities from entering the interior of the housing 1, preventing internal pollution and short circuit hazards. The device can be lifted and moved by the folded tube 31, and the grip pad 38 improves the grip comfort.

[0030] Specifically, a sloping seat 37 is fixed in the lower cavity 32 at the position corresponding to the exhaust fan 34. The end of the sloping seat 37 near the exhaust fan 34 is set as a sloping structure. By adopting the above technical solution, the sloping seat 37 in the lower cavity 32 guides and optimizes the exhaust airflow, improves heat dissipation efficiency, and ensures long-term stable and reliable operation of the device.

[0031] Specifically, after the dustproof net 36 is attached to the air outlet 35, the side of the dustproof net 36 is flush with the side of the folded pipe 31. The bent part of the folded pipe 31 has an arc-shaped structure. By adopting the above technical solution, the dustproof net 36 is flush with the side of the folded pipe 31, the appearance is neat and it is not easy to accumulate dust and be bumped. The bent part has an arc-shaped structure, the stress distribution is uniform, it is not easy to break, and the overall structural strength and service life are improved.

[0032] In this embodiment, during the operation of the device, the heat generated by the electrical components inside the housing 1 is dissipated in a timely manner through the heat dissipation assembly 3. The intake fan 33 sends external cold air into the housing 1 through the upper air vent 35 and the cavity 32 to perform forced air cooling of the core electrical components. At the same time, the exhaust fan 34 discharges the internal hot air through the lower cavity 32 and the air vent 35, forming a stable convective heat exchange cycle, effectively controlling the temperature rise inside the housing 1, and avoiding component accuracy deviation, stability reduction and lifespan shortening due to excessive temperature.

[0033] A dustproof net 36 is installed at the air vent 35, which can effectively block dust and impurities from entering the interior of the housing 1, preventing internal pollution and short circuit hazards. The device can be lifted and moved by the folding tube 31. The grip pad 38 improves the grip comfort. The inclined seat 37 in the lower cavity 32 guides and optimizes the exhaust airflow, improves heat dissipation efficiency, and ensures long-term stable and reliable operation of the device.

[0034] The working principle and usage process of this invention are as follows: First, install the device in a suitable position, connect the power adapter 4 to an external power source, insert the plug of the hydro-generator vibration sensor into the signal interface 7 at one end of the housing 1, and adjust the gear by rotating the knob 5 and referring to the gear mark 6, thereby completing the acquisition, amplification and conditioning of the hydro-generator vibration sensor signal.

[0035] During the docking process between the sensor plug and the signal interface 7, the two sliders 24 are pushed to slide outward along the slide groove 26. The spring 28 on the fixing rod 27 is compressed, providing clearance space for the clamping plate 23. After the plug is fully inserted into the signal interface 7, the sliders 24 are released, and the spring 28 rebounds to push the sliders 24 back to their original position. The sliders 24 drive the clamping plate 23 through the connecting bracket 25 to form a stable clamp on the sensor plug and the signal interface 7, thereby achieving the limit fixation of the plug and effectively avoiding the problems of plug loosening, falling off or signal interruption caused by unit operation vibration and external force pulling.

[0036] When the clamp 23 needs to be adjusted, press the pressing plate 210 to retract the telescopic rod 29. The pressing plate 210 drives the two sliders 24 to move synchronously through the connecting rod 211, which can realize one-handed operation and greatly improve the convenience of insertion and disassembly.

[0037] During the operation of the device, the heat generated by the electrical components inside the housing 1 is dissipated in a timely manner through the heat dissipation component 3. The intake fan 33 sends external cold air into the housing 1 through the upper air vent 35 and the cavity 32 to perform forced air cooling of the core electrical components. At the same time, the exhaust fan 34 discharges the internal hot air through the lower cavity 32 and the air vent 35, forming a stable convective heat exchange cycle, effectively controlling the temperature rise inside the housing 1, and avoiding component accuracy deviation, stability reduction and lifespan shortening due to excessive temperature.

[0038] A dustproof net 36 is installed at the air vent 35, which can effectively block dust and impurities from entering the interior of the housing 1, preventing internal pollution and short circuit hazards. The device can be lifted and moved by the folding tube 31. The grip pad 38 improves the grip comfort. The inclined seat 37 in the lower cavity 32 guides and optimizes the exhaust airflow, improves heat dissipation efficiency, and ensures long-term stable and reliable operation of the device.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A signal conditioning device for a hydroelectric generator oscillation sensor, comprising a housing (1), characterized in that: The front end of the housing (1) is equipped with a knob (5), and the front end of the housing (1) is provided with a gear mark (6) corresponding to the knob (5). A power adapter (4) is provided on the upper side of one end of the housing (1), and several signal interfaces (7) are provided on the lower side of one end of the housing (1). A heat dissipation component (3) for cooling the inside of the housing (1) is provided on the end of the housing (1) away from the power adapter (4). A fixing component (2) for limiting and fixing the plug is provided on the end of the housing (1) corresponding to the signal interface (7). The fixing component (2) includes a fixing seat (21). The fixing seat (21) is fixed at one end of the housing (1) at the position corresponding to the signal interface (7). A through groove (22) is opened in the fixing seat (21) at the position corresponding to the signal interface (7). Two sliders (24) are slidably connected at both ends of the fixing seat (21). Slide grooves (26) adapted to the sliders (24) are opened at both ends of the fixing seat (21). A clamping plate (23) is provided on one side of the slider (24). The clamping plate (23) and the slider (24) are connected by a connecting frame (25). A fixing rod (27) is fixed in the slide groove (26). A spring (28) is sleeved on one end of the slider (24) and outside the fixing rod (27).

2. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 1, characterized in that: The fixing component (2) also includes a telescopic rod (29). The telescopic rod (29) is fixed at both ends of the fixing seat (21) at positions corresponding to the slider (24). A pressing plate (210) is fixed at the other end of the telescopic rod (29). A connecting rod (211) is rotatably connected between the pressing plate (210) and the slider (24).

3. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 1, characterized in that: The slider (24) is designed as an I-shaped structure, and the side of the slider (24) is in close contact with the inner wall of the groove (26).

4. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 1, characterized in that: The slider (24) has a sliding hole corresponding to the fixed rod (27), and a rubber anti-slip pad is glued to one end of the clamp (23).

5. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 2, characterized in that: The connecting rod (211) and the pressing plate (210), as well as the connecting rod (211) and the slider (24), are rotatably connected by a pivot pin. A sponge pad is fixed at one end of the pressing plate (210).

6. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 2, characterized in that: When the telescopic rod (29) retracts to its shortest stroke, the slider (24) does not compress the spring (28) to its maximum compression.

7. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 1, characterized in that: The heat dissipation assembly (3) includes a folded tube (31). One end of the housing (1) is fixed with a folded tube (31). Both ends of the folded tube (31) extend into the interior of the housing (1), and cavities (32) are opened at both ends of the folded tube (31). An intake fan (33) and an exhaust fan (34) are installed in the two cavities (32), respectively. Air vents (35) are opened at the positions corresponding to the cavities (32) at both ends of the folded tube (31).

8. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 7, characterized in that: The heat dissipation assembly (3) also includes a dustproof mesh (36), and the dustproof mesh (36) is snapped into the air vent (35). A gripping pad (38) is fixed on the surface of the folded tube (31).

9. The signal conditioning device for a hydroelectric generator oscillation sensor according to claim 7, characterized in that: An inclined seat (37) is fixed in the cavity (32) on the lower side, corresponding to the exhaust fan (34). The end of the inclined seat (37) near the exhaust fan (34) is set as an inclined structure.

10. A signal conditioning device for a hydroelectric generator oscillation sensor according to claim 8, characterized in that: After the dustproof net (36) is attached to the air outlet (35), the side of the dustproof net (36) is flush with the side of the folded pipe (31), and the bent part of the folded pipe (31) has an arc-shaped structure.

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