A fault abnormality alarm device for a generator set

Abstract

The application relates to the technical field of generator set alarm devices, in particular to a generator set alarm device which comprises a generator set body, the generator set body comprises a generator set and a box body, the generator set is arranged in the box body, and a classified alarm assembly is fixedly connected to the top end of the box body; the classified alarm assembly comprises a supporting frame body which is fixedly connected to the top end of the box body. The application can make the double-color alarm lamp display different alarm colors according to different fault sources, so that the staff can timely judge the fault type and take effective repair measures, meanwhile, the classified alarm assembly can be compared with the sensing and monitoring alarm mode, double insurance signal alarm of the generator set is realized, the reliability of the generator set alarm system is improved, and the classified sound signal alarm can be realized, and the staff can be adaptively informed according to the fault severity of the generator set.

Description

Technical Field

[0001] This invention relates to the field of generator set alarm devices, specifically to a fault and abnormality alarm device for generator sets. Background Technology

[0002] A generator set is a device that converts other forms of energy into electrical energy through power devices such as engines. It mainly consists of an engine, a generator, and a control system, and can provide power support for industrial manufacturing, home life, and other scenarios. Generator set fault and abnormal alarms usually refer to the use of sensors to monitor key parameters of the generator set in real time. When the parameters exceed the normal range, the control system will trigger an alarm mechanism to notify the operator through sound and light, display screen prompts, remote signals, or Internet platforms, so as to avoid excessive damage to the generator set and ensure the safe and stable operation of the generator set.

[0003] However, generator sets with fault alarm functions still have the following problems:

[0004] First, the alarm devices in generator sets lack a corresponding alarm mechanism to match sensor-based alarm methods. Currently, sensor-based alarm methods suffer from false alarms and failure to provide timely alarms, preventing the generator set from issuing multiple alarm signals promptly when malfunctions occur, thus affecting the reliability of the generator set alarm system. Furthermore, in cases of overheating and abnormal vibration, the system cannot provide targeted alarms based on the fault source. For example, in the event of overheating, personnel should immediately take appropriate damping or fire-extinguishing cooling measures to prevent serious damage to the generator set. Moreover, the alarm devices cannot adaptively notify personnel based on the severity of the generator set fault, making it difficult for personnel to promptly determine the fault type and severity level, thus hindering timely and effective repair measures. Second, the cooling mechanisms in generator set enclosures typically require protective functions, thus limiting their cooling and ventilation capabilities. When the generator set overheats during operation, it is difficult to quickly adjust its cooling and ventilation volume, leading to further damage to the generator set. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a fault alarm device for generator sets. This device effectively solves the problem that existing generator set alarm devices lack an alarm mechanism that corresponds to sensor-based monitoring alarm methods. This prevents the generator set from promptly issuing multiple alarm signals when faults or abnormalities occur, thus affecting the reliability of the generator set alarm system. Furthermore, it hinders operators from promptly determining the fault type and severity, making it difficult to implement effective repair measures. Additionally, it makes it difficult to quickly adjust the generator set's cooling and ventilation when it overheats, leading to further damage.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a fault alarm device for generator sets, comprising:

[0008] The generator set body includes a generator set and a housing. The generator set is located inside the housing, and a classification alarm component is fixedly connected to the top of the housing.

[0009] The classification alarm component includes a support frame fixedly connected to the top of the box. A dual-color alarm light is fixedly installed on the upper surface of the support frame. A universal joint is fixedly connected to the top inner surface of the support frame. A swing bracket is fixedly connected to the lower end of the universal joint. A piston cylinder and several slide rails are fixedly connected to the lower end of the swing bracket. A control piston is slidably connected to the inner wall of the piston cylinder. A liquid storage chamber is formed between the control piston, the inner wall of the piston cylinder, and the top inner surface of the piston cylinder. The liquid storage chamber is filled with a thermal expansion and contraction medium. A central hammer connecting rod is fixedly connected to the lower end of the control piston. Lifting blocks are slidably connected to the inner sides of several slide rails. Lateral hammer connecting rods are fixedly connected to the lower end of several lifting blocks. Tension springs are fixedly connected between the upper end of several lifting blocks and the lower end of the swing bracket. An alarm triggering component is fixedly connected to the inner wall of the support frame. A graded sound alarm component is fixedly installed on the upper surface of the box.

[0010] The enclosure has ventilation windows on both opposite side walls, and adjustable heat dissipation components are rotatably connected to the inside of the ventilation windows.

[0011] Furthermore, the alarm triggering component includes two limiting guide rails fixedly connected to the inner wall of the support frame, and a lifting plate slidably connected between the two limiting guide rails. A first-position pressure switch and a second-position pressure switch are fixedly installed on the upper surface of the lifting plate. The lower ends of the central hammer head connecting rod and the lateral hammer head connecting rod selectively contact and press with the first-position pressure switch and the second-position pressure switch, respectively. A monostable trigger and a PLC controller are fixedly installed on the outer wall of the support frame. The first-position pressure switch, the second-position pressure switch, the dual-color alarm light, the monostable trigger, and the PLC controller are electrically connected.

[0012] Furthermore, the graded sound alarm component includes a sounding alarm fixedly installed on the upper surface of the housing. The sounding alarm is electrically connected to a first pressure switch, a second pressure switch, and a PLC controller. Two bearing seats are fixedly connected to the upper surface of the housing. The two bearing seats are evenly distributed on both sides of the sounding alarm. A rotating shaft is rotatably connected to the upper end of each of the two bearing seats. A spiral spring is fixedly connected between the end of the rotating shaft and the bearing seat. A hollow horn frame is fixedly connected to the outer peripheral wall of each of the two rotating shafts. Two fan-shaped elastic plates are slidably connected between the two hollow horn frames. An arc-shaped electromagnet is fixedly connected to the upper end of each of the two hollow horn frames. The two arc-shaped electromagnets are in a state of like poles repulsion when energized.

[0013] Furthermore, the graded sound alarm component also includes a support frame fixedly connected to the lower part of the inner wall of the support frame. Several support springs are fixedly connected between the support frame and the lifting plate. A sliding resistor rod is fixedly connected to the lower end face of the lifting plate. A through hole is opened in the middle of the support frame. The sliding resistor rod slides in cooperation with the through hole. A damping slide plate is slidably connected to the outer peripheral wall of the sliding resistor rod.

[0014] Furthermore, the sliding resistor rod and the damping slider form a sliding rheostat. The sliding rheostat, the two arc-shaped electromagnets, and the external power supply form a closed series circuit. When the damping slider moves toward the upper end of the sliding resistor rod, the resistance value of the sliding rheostat in the closed series circuit formed by the sliding resistor rod, the damping slider, the two arc-shaped electromagnets, and the external power supply increases.

[0015] Furthermore, the adjustable heat dissipation assembly includes several rotating rods rotatably connected to the inner side of the heat dissipation window. Heat dissipation fins are fixedly connected to the outer peripheral walls of the rotating rods. The ends of the heat dissipation fins located inside the housing are rotatably connected by several rectangular connecting rods. A rotating seat is fixedly connected to the lower part of the inner wall of the housing. An electric push rod is rotatably connected to the rotating seat. The telescopic end of the electric push rod is rotatably connected to the heat dissipation fin located at the bottom.

[0016] Furthermore, the adjustable heat dissipation assembly also includes a displacement sensor fixedly installed on the inner wall of the support frame. The displacement sensor is used to monitor the displacement of the central hammer head connecting rod in real time. The displacement sensor, the electric push rod, and the PLC controller are electrically connected.

[0017] Furthermore, an annular sound-insulating cotton is fixedly connected to the outer peripheral wall of the audible alarm, and the lower ends of the two hollow horn frames and the two fan-shaped elastic plates are squeezed and fitted with the annular sound-insulating cotton.

[0018] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0019] This invention incorporates a categorized alarm component. When the generator set experiences overheating or abnormal vibration, the central hammer connecting rod will descend due to abnormal temperature, contacting and pressing the first contact switch; or the lateral hammer connecting rod will swing due to abnormal vibration, contacting and pressing the second contact switch. This causes the dual-color alarm light and audible alarm to receive signals and continuously provide audible and visual alarms. Simultaneously, the trigger signal generated by the first contact switch causes the dual-color alarm light to display red, indicating overheating of the generator set, while the trigger signal generated by the second contact switch causes it to display yellow, indicating abnormal vibration. This allows the dual-color alarm light to display different alarm colors based on different fault sources, enabling staff to promptly determine the fault type and take effective repair measures. Furthermore, it provides a comparison with sensor-based alarm methods, achieving a dual-insurance alarm system for the generator set and improving the reliability of the generator set alarm system.

[0020] This invention incorporates a graded sound alarm component. When the alarm emits a basic alarm sound, i.e., when the first or second contact switch is triggered, the lifting plate moves downward due to pressure from the central hammer rod or the lateral hammer rod. The damping slider moves towards the upper end of the sliding resistor rod, reducing the current connected to the two arc-shaped electromagnets and decreasing the rotation angle of the two hollow horn frames. This results in a smaller amplification structure composed of the two hollow horn frames and the two fan-shaped elastic plates, and an increased internal vibration frequency, making the alarm sound of the alarm sharper. This indicates a higher severity of the overheating or abnormal vibration fault in the enclosure, thus enabling graded sound alarms. The alarm can adaptively notify staff based on the severity of the generator set's fault, allowing staff to promptly assess the severity level of the fault and take effective repair measures.

[0021] This invention incorporates an adjustable heat dissipation component. A displacement sensor monitors the displacement of the central hammer head connecting rod in real time. The magnitude of the displacement of the central hammer head connecting rod reflects the degree of temperature abnormality inside the housing. When the central hammer head connecting rod moves downward due to temperature rise, the telescopic end of the electric push rod can be simultaneously controlled to extend or retract by a corresponding amount. Several heat dissipation fins will rotate at a certain angle to automatically increase the ventilation volume of the heat dissipation window according to the degree of overheating inside the housing. This enables the heat dissipation window to adaptively adjust the heat dissipation of the housing, ensuring that the generator set can effectively dissipate heat in the overheating fault state and preventing further damage to the generator set due to overheating. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the supporting frame structure in this invention;

[0026] Figure 4 This is a cross-sectional view of the supporting frame structure in this invention;

[0027] Figure 5 This is a cross-sectional view of a portion of the structure of the classification alarm component in this invention;

[0028] Figure 6 This is a schematic diagram of the alarm triggering component structure in this invention;

[0029] Figure 7 This is an exploded view of a portion of the hierarchical audible alarm component in this invention;

[0030] Figure 8 This is a schematic diagram of the bearing seat structure in this invention;

[0031] Figure 9 This is a schematic diagram of the adjustable heat dissipation component structure in this invention.

[0032] Reference numerals: 1. Generator set body; 2. Housing; 3. Classification alarm component; 31. Support frame; 32. Dual-color alarm light; 33. Universal joint; 34. Swing bracket; 35. Piston cylinder; 36. Slide rail; 37. Control piston; 38. Central hammer head connecting rod; 39. Lifting block; 310. Lateral hammer head connecting rod; 311. Tension spring; 4. Alarm triggering component; 41. Limit guide rail; 42. Lifting stop plate; 43. No. 1 contact switch; 44. No. 2 contact switch; 45. Monostable trigger; 46. P LC controller; 5. Graded sound alarm component; 51. Sound alarm; 52. Shaft seat; 53. Rotating shaft; 54. Scroll spring; 55. Hollow horn frame; 56. Fan-shaped elastic plate; 57. Arc electromagnet; 58. Support frame; 59. Support spring; 510. Sliding resistor rod; 511. Damping slider; 6. Heat dissipation window; 7. Adjustable heat dissipation assembly; 71. Rotating rod; 72. Heat dissipation fins; 73. Rectangular connecting rod; 74. Rotating seat; 75. Electric push rod; 76. Displacement sensor; 8. Annular sound insulation cotton. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to embodiments.

[0035] Example: Refer to Figures 1 to 9 A fault alarm device for a generator set includes: a generator set body 1, which includes a generator set and a housing 2. The generator set is located inside the housing 2. A classification alarm component 3 is fixedly connected to the top of the housing 2. The classification alarm component 3 includes a support frame 31 fixedly connected to the top of the housing 2. A dual-color alarm light 32 is fixedly installed on the upper surface of the support frame 31. A universal joint 33 is fixedly connected to the inner top surface of the support frame 31. A swing bracket 34 is fixedly connected to the lower end of the universal joint 33. A piston cylinder 35 and several slide rails 36 are fixedly connected to the lower end of the swing bracket 34. A control piston 37 is slidably connected to the inner wall of the piston cylinder 35. A liquid storage chamber is formed between the control piston 37, the inner wall of the piston cylinder 35, and the inner top surface of the piston cylinder 35. The liquid storage chamber is filled with a thermal expansion and contraction medium. A central hammer connecting rod 38 is fixedly connected to the lower end of the control piston 37.

[0036] A number of slide rails 36 are slidably connected to lifting blocks 39 on their inner sides. A lateral hammer head connecting rod 310 is fixedly connected to the lower end face of each of the lifting blocks 39. A tension spring 311 is fixedly connected between the upper end face of each of the lifting blocks 39 and the lower end face of the swing bracket 34.

[0037] An alarm triggering component 4 is fixedly connected to the inner wall of the support frame 31. The alarm triggering component 4 includes two limiting guide rails 41 fixedly connected to the inner wall of the support frame 31. A lifting plate 42 is slidably connected between the two limiting guide rails 41. A first-level touch switch 43 and a second-level touch switch 44 are fixedly installed on the upper surface of the lifting plate 42. The lower ends of the central hammer head connecting rod 38 and the lateral hammer head connecting rod 310 selectively contact and press with the first-level touch switch 43 and the second-level touch switch 44, respectively. A monostable trigger 45 and a PLC controller 46 are fixedly installed on the outer wall of the support frame 31. The first-level touch switch 43, the second-level touch switch 44, the dual-color alarm light 32, the monostable trigger 45 and the PLC controller 46 are electrically connected.

[0038] When the internal temperature of the housing 2 rises, the thermal expansion and contraction medium in the piston cylinder 35 expands in volume due to the principle of thermal expansion and contraction. The pressure in the liquid storage chamber of the piston cylinder 35 increases, and pushes the control piston 37 downward to make a sealing sliding movement. The central hammer connecting rod 38 also moves down and finally contacts and squeezes the No. 1 pressure switch 43.

[0039] Specifically, the thermal expansion and contraction medium is silicone oil, which has a boiling point higher than the upper limit of the normal operating temperature of the generator set and has insulating properties.

[0040] When the housing 2 vibrates abnormally, the swing bracket 34 will swing flexibly in three-dimensional space, causing several lateral hammer rods 310 to swing and contact the pressure switch 44.

[0041] When the generator set is running normally, the lifting plate 42 is in the initial position. When the central hammer connecting rod 38 moves down to contact and press the first contact switch 43 due to abnormal temperature, or when the lateral hammer connecting rod 310 swings to contact and press the second contact switch 44 due to abnormal vibration, the corresponding first contact switch 43 or second contact switch 44 is triggered and generates an electrical signal. This causes the dual-color alarm light 32 and the audible alarm 51 to start receiving signals and continuously provide audible and visual alarms. At the same time, the trigger signal generated by the first contact switch 43 can make the dual-color alarm light 32 display red, indicating that the generator set is overheating. The trigger signal generated by the second contact switch 44 will make the dual-color alarm light 32 display yellow, indicating that the generator set is vibrating abnormally. This allows the dual-color alarm light 32 to display different alarm colors according to different fault sources, enabling staff to promptly determine the fault type and take effective repair measures. It can also be compared with the sensor monitoring alarm method to realize the dual-insurance signal alarm of the generator set, which is beneficial to improving the reliability of the generator set alarm system.

[0042] Specifically, the first pressure switch 43 has a circular structure and is located at the center of the upper surface of the lifting plate 42, and the second pressure switch 44 has a ring structure and is located at the edge of the upper surface of the lifting plate 42. After receiving the trigger signal generated by the first pressure switch 43 being triggered, the second pressure switch 44 being triggered, or the first pressure switch 43 and the second pressure switch 44 being triggered synchronously, the monostable trigger 45 can flip the trigger signal from the steady state to the metastable state and output a high-level signal for a certain period of time. That is, when the first pressure switch 43 or the second pressure switch 44 is contacted and squeezed again, it will still be in the triggered state to ensure the continuous alarm of the dual-color alarm light 32 and the audible alarm 51.

[0043] Specifically, the dual-color alarm light 32 is equipped with a red light group and a yellow light group. The PLC controller 46 can simultaneously monitor the trigger signal status of the first pressure switch 43 and the second pressure switch 44. When the first pressure switch 43 generates a trigger signal, the PLC controller 46 controls the red light group of the dual-color alarm light 32 to display. When the second pressure switch 44 generates a trigger signal, the PLC controller 46 controls the yellow light group of the dual-color alarm light 32 to display. When the first pressure switch 43 generates a trigger signal, or the second pressure switch 44 generates a trigger signal, or both the first pressure switch 43 and the second pressure switch 44 generate trigger signals, the PLC controller 46 will control the dual-color alarm light 32 to display only the red light group, only the yellow light group, or both the red and yellow light groups simultaneously.

[0044] Specifically, when the PLC controller 46 detects the trigger signal, it will synchronously transmit a start signal to the sound alarm 51, causing the sound alarm 51 to generate an audible alarm signal.

[0045] A graded sound alarm component 5 is fixedly installed on the upper surface of the housing 2. The graded sound alarm component 5 includes a sounding alarm 51 fixedly installed on the upper surface of the housing 2. The sounding alarm 51 is electrically connected to a first contact switch 43, a second contact switch 44, and a PLC controller 46. Two bearing seats 52 are fixedly connected to the upper surface of the housing 2. The two bearing seats 52 are evenly distributed on both sides of the sounding alarm 51. A rotating shaft 53 is rotatably connected to the upper end of each bearing seat 52. The ends of the rotating shafts 53 are connected to the bearing seats 52. A spiral spring 54 is fixedly connected. Hollow horn frames 55 are fixedly connected to the outer peripheral walls of the two rotating shafts 53. Two sector-shaped elastic plates 56 are slidably connected between the two hollow horn frames 55. An annular sound insulation cotton 8 is fixedly connected to the outer peripheral wall of the audible alarm 51. The lower ends of the two hollow horn frames 55 and the two sector-shaped elastic plates 56 are pressed and fitted with the annular sound insulation cotton 8. Arc-shaped electromagnets 57 are fixedly connected to the upper ends of the two hollow horn frames 55. When the two arc-shaped electromagnets 57 are energized, they are in a state of repulsion due to their like poles.

[0046] The graded sound alarm component 5 also includes a support frame 58 fixedly connected to the lower part of the inner wall of the support frame 31. Several support springs 59 are fixedly connected between the support frame 58 and the lifting plate 42. A sliding resistor rod 510 is fixedly connected to the lower end face of the lifting plate 42. A through hole is opened in the middle of the support frame 58. The sliding resistor rod 510 is slidably engaged with the through hole. A damping slider 511 is slidably connected to the outer peripheral wall of the sliding resistor rod 510. The sliding resistor rod 510 and the damping slider 511 form a sliding rheostat. The sliding rheostat, two arc electromagnets 57 and the external power supply form a closed series circuit. It should be noted that the two arc electromagnets 57 are always energized to ensure timely response of the sound alarm. When the damping slider 511 moves toward the upper end of the sliding resistor rod 510, the resistance value of the sliding rheostat in the closed series circuit formed by the sliding resistor rod 510, the damping slider 511, the two arc electromagnets 57 and the external power supply increases.

[0047] When the first contact switch 43 or the second contact switch 44 is triggered, the lifting plate 42 will move downwards due to the pressure from the central hammer connecting rod 38 or the lateral hammer connecting rod 310. This causes the damping slider 511 to move towards the upper end of the sliding resistor rod 510. That is, when the sliding resistor rod 510 moves downwards and causes the damping slider 511 to move upwards relative to it, the longer the lifting plate 42 moves downwards, the higher the severity of the overheating or abnormal vibration fault. The resistance value of the sliding rheostat connected to the circuit increases, and the current connected to the two arc-shaped electromagnets 57 decreases. The smaller size results in a smaller magnetic repulsion between the two arc-shaped electromagnets 57, which in turn reduces the size of the sound amplification structure composed of the two hollow horn frames 55 and the two fan-shaped elastic plates 56 and increases its internal vibration frequency. This makes the alarm sound of the audible alarm 51 sharper, indicating a higher degree of fault severity of overheating or abnormal vibration of the housing 2. This enables graded sound signal alarms, which can adaptively notify staff according to the severity of the generator set's fault, so that staff can promptly judge the severity level of the fault and take effective emergency repair measures.

[0048] Specifically, the damping slider 511 is made of rubber-metal composite material. The rubber can dampen friction, while the metal sheet can conduct electricity. Under the damping friction of the rubber, when the damping slider 511 moves upward relative to the sliding resistor rod 510, it will stop on the sliding resistor rod 510 to maintain the stability of the resistance change of the sliding rheostat composed of the sliding resistor rod 510 and the damping slider 511.

[0049] Specifically, the spiral spring 54 is pre-tightened and has an initial tensile force, which allows the spiral spring 54 to continuously and elastically stretch the rotating shaft 53 to rotate, thereby making the hollow horn frame 55 always tend to move closer to the sounding alarm 51.

[0050] Specifically, the annular sound insulation cotton 8 can be squeezed and cooperated with the lower ends of the two hollow horn frames 55 and the two fan-shaped elastic plates 56 to focus the alarm sound emitted by the sound alarm 51;

[0051] Specifically, when the lifting plate 42 moves down and moves closer to the support frame 58, the support spring 59 is in a compressed state and accumulates a certain amount of elastic force. When the lifting plate 42 is no longer contacted and squeezed by the central hammer rod 38 or the lateral hammer rod 310, several support springs 59 can elastically support the lifting plate 42, so that the lifting plate 42 can automatically move up and reset.

[0052] The housing 2 has heat dissipation windows 6 on both opposite side walls. An adjustable heat dissipation assembly 7 is rotatably connected to the inside of the heat dissipation windows 6. The adjustable heat dissipation assembly 7 includes several rotating rods 71 ​​rotatably connected to the inside of the heat dissipation windows 6. Heat dissipation fins 72 are fixedly connected to the outer periphery of the rotating rods 71. The ends of the heat dissipation fins 72 located inside the housing 2 are rotatably connected by several rectangular connecting rods 73. A rotating seat 74 is fixedly connected to the lower part of the inner wall of the housing 2. An electric push rod 75 is rotatably connected to the rotating seat 74. The telescopic end of the electric push rod 75 is rotatably connected to the heat dissipation fin 72 located at the bottom. The adjustable heat dissipation assembly 7 also includes a displacement sensor 76 fixedly installed on the inner wall of the support frame 31. The displacement sensor 76 is used to monitor the displacement of the central hammer connecting rod 38 relative to the piston cylinder 35 in real time. The displacement sensor 76, the electric push rod 75 and the PLC controller 46 are electrically connected.

[0053] The displacement sensor 76 can monitor the displacement of the central hammer connecting rod 38 relative to the piston cylinder 35 in real time. The magnitude of the displacement of the central hammer connecting rod 38 relative to the piston cylinder 35 can reflect the degree of abnormal temperature inside the housing 2. When the central hammer connecting rod 38 moves downward due to temperature rise, the extension end of the electric push rod 75 can be controlled to extend or retract through the PLC controller 46. Several heat dissipation fins 72 will rotate at a corresponding angle to increase the ventilation of the heat dissipation window 6. This enables the heat dissipation window 6 to adaptively adjust the heat dissipation of the housing 2, ensuring that the generator set can effectively dissipate heat in the overheating fault state and avoid further damage to the generator set due to overheating.

[0054] Specifically, the displacement sensor 76 is an image recognition type non-contact displacement sensor, and the displacement sensor 76 is located in the -45° direction of the central hammer head connecting rod 38. When the several lateral hammer head connecting rods 310 swing, they will not interfere with the motion of the displacement sensor 76.

[0055] Specifically, the two ends of the rectangular connecting rod 73 are rotatably connected to the ends of the adjacent heat dissipation fins 72 through hinge shafts to form a parallelogram linkage mechanism. When the electric push rod 75 pushes the bottom heat dissipation fin 72 to rotate, the rigid transmission of the rectangular connecting rod 73 drives all heat dissipation fins 72 to rotate synchronously at the same angle, ensuring that the ventilation volume of the heat dissipation window 6 is uniformly adjusted.

[0056] Specifically, when the electric push rod 75 extends or retracts, it will push the bottom heat dissipation fin 72 to rotate, and through the transmission action of the rectangular connecting rod 73, it will drive several other heat dissipation fins 72 to rotate synchronously, thereby changing the tilt angle of several heat dissipation fins 72, thereby adjusting the ventilation volume of the heat dissipation window 6. The larger the tilt angle of several heat dissipation fins 72, the larger the ventilation volume of the heat dissipation window 6, and the better the heat dissipation effect on the box 2.

[0057] The working principle of this invention is as follows:

[0058] When the generator set experiences a fault such as overheating of components or short circuit, causing the internal temperature of housing 2 to rise, the thermal expansion and contraction medium in piston cylinder 35 expands in volume due to the principle of thermal expansion and contraction. The pressure in the liquid storage chamber of piston cylinder 35 will increase accordingly, pushing the control piston 37 downward to make a sealing sliding movement. The central hammer connecting rod 38, which is fixedly connected to the lower end face of the control piston 37, also moves downward and eventually contacts and squeezes the No. 1 pressure switch 43.

[0059] If abnormal vibration occurs during generator set operation, housing 2 will synchronously generate abnormal vibration and transmit it to support frame 31. Since swing bracket 34 is connected to the inner top surface of support frame 31 through universal joint 33, universal joint 33 can make swing bracket 34 swing flexibly in three-dimensional space to adapt to the vibration of housing 2 in different directions. Under the action of vibration of support frame 31, swing bracket 34 will swing synchronously and cause several slide rails 36 to swing synchronously. When slide rail 36 swings, the lifting block 39 on its inner side will overcome the tension of tension spring 311 and slide along slide rail 36 under the action of vibration inertial force, causing several lateral hammer head connecting rods 310 to swing as well. When the abnormal vibration amplitude of generator set reaches a certain level, the lower end of lateral hammer head connecting rod 310 will contact and squeeze the second contact switch 44.

[0060] Under normal operating conditions, the lifting plate 42 is in its initial position, and the first and second contact switches 43 and 44 are not triggered. When the central hammer connecting rod 38 moves down to contact and press the first contact switch 43 due to abnormal temperature, or when the lateral hammer connecting rod 310 swings to contact and press the second contact switch 44 due to abnormal vibration, the corresponding first or second contact switch 43 is triggered and generates an electrical signal, causing the dual-color alarm light 32 and the audible alarm 51 to start receiving signals and continuously provide audible and visual alarms. At the same time, the dual-color alarm light 32 can display two alarm colors: red and yellow. The trigger signal generated by the first contact switch 43 can make the dual-color alarm light 32 display red, indicating that the generator set is overheating. The trigger signal generated by the second contact switch 44 will make the dual-color alarm light 32 display yellow, indicating that the generator set is vibrating abnormally. Thus, the dual-color alarm light 32 can display different alarm colors according to different fault sources.

[0061] The trigger signal from either the first or second pressure switch 43 can be synchronously transmitted to the audible alarm 51, causing it to emit a basic alarm sound. When either the first or second pressure switch 44 is triggered, the lifting plate 42 will move downwards due to the pressure from the central hammer rod 38 or the lateral hammer rod 310. During this process, the sliding resistor rod 510 will simultaneously pass through the through hole in the middle of the support frame 58 and drive the damping slider 511 to move downwards. The support frame 58 will obstruct the downward movement of the damping slider 511. The longer the downward movement of the lifting plate 42 is when the damping slider 511 moves towards the upper end of the sliding resistor rod 510, the more serious the overheating or abnormal vibration fault. The higher the degree, the greater the resistance value of the sliding rheostat connected to the circuit. According to Ohm's law, the current in the circuit will decrease, that is, the current connected to the two arc electromagnets 57 will decrease, making the magnetic repulsion between the two arc electromagnets 57 smaller. The two hollow horn frames 55 and the two sector elastic plates 56 can form a horn-shaped sound amplification structure. When the magnetic repulsion between the two arc electromagnets 57 is smaller, the rotation angle of the two hollow horn frames 55 is smaller, the sound amplification structure formed by the two hollow horn frames 55 and the two sector elastic plates 56 is smaller and its internal vibration frequency increases, making the alarm sound of the audible alarm 51 sharper, indicating that the fault of the box 2 overheating or abnormal vibration is more severe.

[0062] The displacement sensor 76 can monitor the displacement of the central hammer connecting rod 38 relative to the piston cylinder 35 in real time. The magnitude of the displacement of the central hammer connecting rod 38 relative to the piston cylinder 35 can reflect the degree of temperature abnormality inside the housing 2. When the central hammer connecting rod 38 moves downward due to temperature rise, the displacement sensor 76 converts the displacement signal of the central hammer connecting rod 38 into an electrical signal and transmits it to the PLC controller 46. After processing the signal, the PLC controller 46 sends a command to the electric push rod 75 according to the preset control logic to control the extension and retraction of the extension end of the electric push rod 75. When the temperature abnormality inside the housing 2 is mild, the PLC controller 46 can control the extension and retraction of the extension end of the electric push rod 75 to extend and retract slightly, and several heat dissipation fins 72 will rotate at a small angle to moderately increase the ventilation of the heat dissipation window 6. When the temperature abnormality inside the housing 2 is severe, the PLC controller 46 will control the extension and retraction of the extension end of the electric push rod 75 to extend and retract significantly, and several heat dissipation fins 72 will rotate at a large angle to significantly increase the ventilation of the heat dissipation window 6.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fault alarm device for generator sets, characterized in that, include: The generator set body (1) includes a generator set and a housing (2). The generator set is located inside the housing (2). A classification alarm component (3) is fixedly connected to the top of the housing (2). The classification alarm component (3) includes a support frame (31) fixedly connected to the top of the housing (2). A dual-color alarm light (32) is fixedly installed on the upper surface of the support frame (31). A universal joint (33) is fixedly connected to the inner top surface of the support frame (31). A swing bracket (34) is fixedly connected to the lower end of the universal joint (33). A piston cylinder (35) and several slide rails (36) are fixedly connected to the lower end of the swing bracket (34). A control piston (37) is slidably connected to the inner wall of the piston cylinder (35). The control piston (37), the inner wall of the piston cylinder (35), and the inner top surface of the piston cylinder (35) are sealed together. A liquid storage chamber is formed between the two sides, and the liquid storage chamber is filled with a thermal expansion and contraction medium. A central hammer head connecting rod (38) is fixedly connected to the lower end face of the control piston (37). Lifting blocks (39) are slidably connected to the inner side of several slide rails (36). Lateral hammer head connecting rods (310) are fixedly connected to the lower end face of several lifting blocks (39). Tension springs (311) are fixedly connected between the upper end face of several lifting blocks (39) and the lower end face of the swing bracket (34). An alarm triggering component (4) is fixedly connected to the inner wall of the support frame (31). A graded sound alarm component (5) is fixedly installed on the upper end face of the box (2). The alarm triggering component (4) includes two limiting guide rails (41) fixedly connected to the inner wall of the support frame (31). A lifting plate (42) is slidably connected between the two limiting guide rails (41). A first touch switch (43) and a second touch switch (44) are fixedly installed on the upper surface of the lifting plate (42). The lower end of the central hammer connecting rod (38) and the lower end of the lateral hammer connecting rod (310) selectively contact and press with the first touch switch (43) and the second touch switch (44), respectively. A monostable trigger (45) and a PLC controller (46) are fixedly installed on the outer wall of the support frame (31). The first touch switch (43), the second touch switch (44), the dual-color alarm light (32), the monostable trigger (45) and the PLC controller (46) are electrically connected. The graded sound alarm component (5) includes a sound alarm (51) fixedly installed on the upper surface of the housing (2). The sound alarm (51) is electrically connected to a first-level pressure switch (43), a second-level pressure switch (44), and a PLC controller (46). Two bearing seats (52) are fixedly connected to the upper surface of the housing (2). The two bearing seats (52) are evenly distributed on both sides of the sound alarm (51). A rotating shaft (53) is rotatably connected to the upper end of each of the two bearing seats (52). A spiral spring (54) is fixedly connected between the end of the rotating shaft (53) and the bearing seat (52). A hollow horn frame (55) is fixedly connected to the outer peripheral wall of each of the two rotating shafts (53). Two fan-shaped elastic plates (56) are slidably connected between the two hollow horn frames (55). An arc-shaped electromagnet (57) is fixedly connected to the upper end of each of the two hollow horn frames (55). The two arc-shaped electromagnets (57) are in a state of repulsion when energized. The graded sound alarm component (5) also includes a support frame (58) fixedly connected to the lower part of the inner wall of the support frame (31). Several support springs (59) are fixedly connected between the support frame (58) and the lifting plate (42). A sliding resistor rod (510) is fixedly connected to the lower end face of the lifting plate (42). A through hole is opened in the middle of the support frame (58). The sliding resistor rod (510) slides with the through hole. A damping slide plate (511) is slidably connected to the outer peripheral wall of the sliding resistor rod (510). The sliding resistor rod (510) and the damping slider (511) form a sliding rheostat. The sliding rheostat, the two arc electromagnets (57) and the external power supply form a closed series circuit. When the damping slider (511) moves toward the upper end of the sliding resistor rod (510), the resistance value of the sliding rheostat in the closed series circuit formed by the sliding resistor rod (510), the damping slider (511), the two arc electromagnets (57) and the external power supply increases. The box (2) has heat dissipation windows (6) on both opposite side walls, and an adjustable heat dissipation component (7) is rotatably connected to the inside of the heat dissipation window (6).

2. The fault alarm device for generator sets according to claim 1, characterized in that, The adjustable heat dissipation assembly (7) includes several rotating rods (71) rotatably connected to the inside of the heat dissipation window (6). Heat dissipation fins (72) are fixedly connected to the outer peripheral walls of the rotating rods (71). The ends of the heat dissipation fins (72) located inside the box (2) are rotatably connected by several rectangular connecting rods (73). A rotating seat (74) is fixedly connected to the lower part of the inner wall of the box (2). An electric push rod (75) is rotatably connected to the rotating seat (74). The telescopic end of the electric push rod (75) is rotatably connected to the heat dissipation fin (72) located at the bottom.

3. The fault alarm device for generator sets according to claim 2, characterized in that, The adjustable heat dissipation assembly (7) also includes a displacement sensor (76) fixedly installed on the inner wall of the support frame (31). The displacement sensor (76) is used to monitor the displacement of the central hammer connecting rod (38) in real time. The displacement sensor (76), the electric push rod (75) and the PLC controller (46) are electrically connected.

4. The fault alarm device for generator sets according to claim 1, characterized in that, The outer peripheral wall of the audible alarm (51) is fixedly connected with an annular sound insulation cotton (8), and the lower ends of the two hollow horn frames (55) and the two fan-shaped elastic plates (56) are squeezed and fitted with the annular sound insulation cotton (8).

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