A marine IP44 low-voltage generator

Abstract

This invention provides a marine IP44 low-voltage generator, including a housing mounted on the generator body and a protective mechanism mounted on the housing. The protective mechanism includes a protective component with a heat dissipation vent on the housing and a cleaning component on the end face of the protective component away from the generator body. The protective component includes a mounting block with a protective groove on its end face located within the heat dissipation vent, and multiple parallel protective plates with parallel upper and lower surfaces and equal spacing located within the protective groove. The cleaning component includes a control strip located at the opening of the protective groove away from the generator body and arranged along the direction of the multiple protective plates, multiple control blocks located along the length direction on the end face of the control strip adjacent to the protective plates, and a driving component on the mounting block for driving the control strip to tilt downwards and into the generator body. This invention can conveniently protect the marine generator, ensure its normal operation, and improve its service life.

Description

Technical Field

[0001] This invention relates to the field of marine generator technology, specifically a marine IP44 low-voltage generator. Background Technology

[0002] For air-cooled generators, ventilation and heat dissipation are of paramount importance. It is necessary to ensure smooth ventilation throughout the generator, select an appropriate drag coefficient, and meet the protection requirements of the generator in harsh outdoor environments. This places high demands on the exhaust vent protection devices of the generator.

[0003] Existing generator heat dissipation vent protection devices, such as the generator exhaust protection structure disclosed in publication number CN113612336A on November 5, 2021, have an IP44 protection rating. This protection structure discloses that through three layers of protection—a primary isolation plate, a secondary isolation plate, and a final isolation plate—rainwater or foreign objects are completely isolated from the outside of the generator, so that the generator protection rating fully meets the IP44 level requirements.

[0004] Although the aforementioned protective devices can ensure that the generator's protection level fully meets the IP44 requirement, in actual use, after prolonged use, a large amount of dust can enter the isolation plates. On the one hand, the dust can clog the generator's heat dissipation vents; on the other hand, if dust and water droplets enter between the primary and secondary isolation plates and are not cleaned for a long time, the damp dust can adhere to the isolation plates and even block the drainage holes. This means that rainwater or foreign objects cannot be completely isolated from the outside of the generator, and some rainwater or foreign objects can enter the generator's interior, causing the generator's insulation to become damp and damaged, greatly shortening the lifespan of the generator's insulation, and thus reducing the overall lifespan of the generator. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a marine IP44 low-voltage generator, which can conveniently protect the marine generator, ensure its normal operation, and extend its service life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a marine IP44 low-voltage generator, comprising a housing disposed on the generator body and a protective mechanism disposed on the housing, the protective mechanism comprising a protective component disposed on a heat dissipation vent on the housing and a cleaning component disposed on the end face of the protective component away from the generator body;

[0007] The protective assembly includes a mounting block disposed within the heat dissipation vent and having a protective groove on its end face, and multiple protective plates with parallel upper and lower surfaces and equal spacing disposed within the protective groove. The protective plates have a wavy cross-section, and the distance between any two adjacent protective plates is less than 1 mm. The center positions of both ends of the protective plates are fixedly connected to the inner wall of the protective groove by fixing blocks.

[0008] The cleaning component includes a control strip located at the opening of the protective groove away from the generator body and arranged along the direction of the arrangement of the multiple protective plates; multiple control blocks located on the end face of the control strip near the protective plate along the length direction; and a drive component located on the mounting block to drive the control strip to tilt and move downward toward the inside of the generator body.

[0009] The driving component includes a cleaning block located on the end face of the mounting block away from the generator body and having a cleaning groove that communicates with the protective groove; two connecting rods symmetrically located on the side of the control strip near the cleaning groove and passing through the cleaning block and connected by a linkage rod; and a driving structure located within the cleaning block that drives the linkage rods to perform circular motion parallel to the end face of the mounting block.

[0010] Preferably, the drive structure includes two drive motors symmetrically arranged about the side of the control bar near the cleaning tank and located within the cleaning block, drive wheels on the drive motors, and two eccentric rods respectively located at the same position on different drive wheels and connected to the linkage rod body. The eccentric rods are located at a position away from the center of the drive wheel end face.

[0011] Preferably, when the two eccentric rods are located in the same plane, the control block provided on the end face of the control strip near the protective plate is located between the two adjacent protective plates and is in contact with the edges of the two protective plates; the number of control blocks is multiple, and the multiple control blocks are arranged at equal intervals along the length direction of the control strip; the control blocks have a semi-cylindrical structure separated along the axial direction.

[0012] Preferably, each of the protective plates has a shaking post on the side adjacent to the control strip.

[0013] Preferably, the mounting block is provided with an exhaust block with an exhaust groove that penetrates the protective groove on one end face of the generator body, and an exhaust fan is provided on the exhaust block by a fixing strip and located in the exhaust groove.

[0014] The beneficial effects of this invention are as follows: Multiple equally spaced protective plates within the protective groove prevent water droplets or foreign objects from directly entering the generator body. The spacing between the protective plates is less than 1mm, ensuring the generator body fully meets IP44 requirements. A drive assembly tilts the control bar downwards, causing the edges of the protective plates to tilt towards the generator body. After moving downwards a certain distance, the upper protective plate springs back to its original position, vibrating and shaking off dust. When the control bar tilts the edges of the protective plates towards the generator body, the distance between adjacent protective plate edges decreases, increasing the airflow speed between the plates and facilitating dust removal. This improves the dust removal efficiency, preventing dust from clogging the heat dissipation vents and effectively protecting the marine generator, ensuring its normal operation and extending its service life. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a simplified structural diagram of the marine IP44 low-voltage generator protection mechanism proposed in this invention.

[0017] Figure 2 This is a schematic diagram of the rear structure of the marine IP44 low-voltage generator protection mechanism proposed in this invention.

[0018] Figure 3 This is a schematic diagram of the protective component structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the internal structure of the protective groove of the present invention.

[0020] Figure 5 This is a schematic diagram of the cleaning component structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the driving structure of the present invention.

[0022] Figure 7 This is an enlarged structural diagram of point A in the present invention.

[0023] In the diagram: 1. Mounting block; 2. Cleaning block; 3. Exhaust block; 4. Cleaning groove; 5. Control strip; 6. Exhaust groove; 7. Fixing strip; 8. Exhaust fan; 9. Protective groove; 10. Protective plate; 11. Vibration column; 12. Fixing block; 13. Control block; 14. Drive motor; 15. Drive wheel; 16. Eccentric rod; 17. Linkage rod; 18. Connecting rod. Detailed Implementation

[0024] To make the technical means, creative features, achieved objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0025] Please see Figure 1-7 A marine IP44 low-voltage generator includes a housing on the generator body and a protective mechanism on the housing. The protective mechanism includes a protective component on a heat dissipation vent on the housing and a cleaning component on the end face of the protective component away from the generator body.

[0026] The protective assembly includes a mounting block 1 located inside the heat dissipation vent and having a protective groove 9 on its end face, and multiple protective plates 10 with parallel upper and lower surfaces and equal spacing located in the protective groove 9. The cross-section of the protective plate 10 is wavy, and the distance between any two adjacent protective plates 10 is less than 1 mm. The center positions of both ends of the protective plate 10 are fixedly connected to the inner wall of the protective groove 9 by fixing blocks 12.

[0027] The cleaning component includes a control strip 5 located at the opening of the protective groove 9 away from the generator body and arranged along the direction of the arrangement of multiple protective plates 10, multiple control blocks 13 located on the end face of the control strip 5 near the protective plate 10 along the length direction, and a drive member located on the mounting block 1 to drive the control strip 5 to tilt downward toward the inside of the generator body.

[0028] like Figure 1-7As shown, the protective plates 10 arranged in the protective groove 9 are spaced less than 1mm apart, which facilitates the blocking of water droplets or foreign objects with a diameter greater than 1mm from entering the generator body and causing damage. This provides convenient protection for the marine generator, ensuring its normal operation and extending its service life. However, over time, some smaller water droplets may enter the protective plates 10. Due to the wavy cross-section of the protective plates 10, water droplets can pass through the protrusions and depressions of the protective plates 10 to enter the generator body and cause damage. However, with prolonged use, dust and objects soaked in water droplets may accumulate on the side of the protective plates 10 away from the generator body, causing blockage of the heat dissipation vents or reducing the size of the vent openings. This reduces the heat dissipation of the generator body, leading to a large accumulation of heat inside the casing, causing aging of the generator body components and reducing the service life of the generator body.

[0029] The system utilizes a drive mechanism to move a control bar 5 in a circular motion across the surfaces of multiple protective plates 10. This motion applies a downward tilting force to the edges of the protective plates 10. Control blocks 13 are mounted on the surface of the control bar 5. When the control bar 5, along with the control blocks 13, presses the protective plates 10 to a certain length, the plates spring back to their original positions, causing vibration that dislodging dust. Furthermore, as the control bar 5 moves the edges of the protective plates 10, adjacent plates move closer together, increasing the airflow between them while maintaining the same amount of cooling air. This facilitates cleaning of dust from the vibrating plates, improving the effectiveness of dust removal, ensuring the normal operation of the marine generator, and extending its service life.

[0030] The driving component includes a cleaning block 2 located on the end face of the mounting block 1 away from the generator body and having a cleaning groove 4 that communicates with the protective groove 9; two connecting rods 18 symmetrically located on the side of the control bar 5 near the cleaning groove 4 and passing through the cleaning block 2 and connected by a linkage rod 17; and a driving structure located in the cleaning block 2 that drives the linkage rod 17 to move in a circular motion parallel to the end face of the mounting block 1.

[0031] like Figure 5-6As shown, the two ends of the linkage rod 17 are connected to the two ends of the control bar 5 via two connecting rods 18. The linkage rod 17 moves in a circular motion through the drive structure, which facilitates the control bar 5 to move in a circular motion on one side of the multiple protective plates 10, thereby facilitating the cleaning of dust on the multiple protective plates 10.

[0032] The drive structure includes two drive motors 14 symmetrical about the side of the control bar 5 adjacent to the cleaning tank 4 and located in the cleaning block 2, drive wheels 15 on the drive motors 14, and two eccentric rods 16 located at the same position on different drive wheels 15 and connected to the rod body of the linkage rod 17. The eccentric rods 16 are located at the end face of the drive wheel 15 away from the center.

[0033] like Figure 6 As shown, the drive motor 14 is a stepper motor, and the output end of the stepper motor is connected to the drive wheel 15. An eccentric rod 16 is provided on the drive wheel 15, and one end of the eccentric rod 16 is perpendicularly located at a position off the center of the drive wheel 15. Therefore, under the drive of the drive motor 14, it is easy to drive the linkage rod 17 to perform circular motion.

[0034] When the two eccentric rods 16 are located in the same plane, the control block 13 set on the end face of the control strip 5 near the protective plate 10 is located between the two adjacent protective plates 10 and fits against the edges of the two protective plates 10; there are multiple control blocks 13, and the multiple control blocks 13 are arranged at equal intervals along the length direction of the control strip 5; the control blocks 13 have a semi-cylindrical structure separated along the axial direction.

[0035] like Figure 1-7 As shown, when the two eccentric rods 16 are in the same plane, under the action of the drive motor 14, the eccentric rods 16 drive the control bar 5 to move. When the control block 13 contacts the shaking column 11 set on the protective plate 10, it will apply a force to the generator body and vertically downward to the shaking column 11. When the control bar 5 drives the control block 13 to make circular motion, the shaking column 11 moves downward and towards the generator body under the action of the control block 13. When the control block 13 moves a long distance downward, it can no longer block the shaking column 11 and will return to its original position. At this time, the protective plate 10 will vibrate, which will facilitate the shaking off of dust on the protective plate 10. Then, the dust between the two adjacent protective plates 10 will be blown to the outside of the protective plate 10 through the heat dissipation device.

[0036] Each protective plate 10 has a shaking post 11 on one side adjacent to the control strip 5.

[0037] The mounting block 1 has an exhaust block 3 that is opened and penetrates the exhaust groove 6 through the protective groove 9 on one end face of the generator body, and an exhaust fan 8 that is set on the exhaust block 3 and located in the exhaust groove 6 by a fixing strip 7.

[0038] like Figure 2 As shown, the exhaust fan 8 is driven by a motor, which facilitates blowing the heat inside the generator body to the outside of the generator body casing, thereby reducing the heat inside the casing and ensuring that the generator body can work normally.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine IP44 low voltage generator comprising a housing provided on a generator body, and a protection mechanism provided on the housing, characterized in that, The protection mechanism comprises a protection assembly arranged on the housing and opening the heat dissipation port, and a cleaning assembly arranged on the end face of the protection assembly away from the generator body; The protection assembly comprises an installation block (1) arranged in the heat dissipation port and opening a protection groove (9) on the end face, and a plurality of protection plates (10) arranged in the protection groove (9) with upper and lower surfaces parallel to each other and equidistantly, the cross section of the protection plate (10) is in a wave shape, and the distance between every two adjacent protection plates (10) is less than 1mm; the center positions of the two ends of the protection plate (10) are fixedly connected with the inner wall of the protection groove (9) through a fixing block (12). The cleaning assembly comprises a control bar (5) arranged on the opening of the protection groove (9) away from the generator body and arranged along the arrangement direction of the plurality of protection plates (10), a plurality of control blocks (13) arranged on the control bar (5) near the end face of the protection plate (10) and along the length direction, and a driving member arranged on the installation block (1) and driving the control bar (5) to tilt and move downwardly into the generator body. The driving member comprises a cleaning block (2) arranged on the end face of the installation block (1) away from the generator body and opening a cleaning groove (4) penetrating through the protection groove (9), two connecting rods (18) symmetrically arranged on the side of the control bar (5) near the cleaning groove (4) and penetrating through the cleaning block (2) and connected through a linkage rod (17), and a driving structure arranged in the cleaning block (2) and driving the linkage rod (17) to make a circular motion parallel to the end face of the installation block (1). The driving structure comprises two driving motors (14) symmetrically arranged on the side of the control bar (5) near the cleaning groove (4) and arranged in the cleaning block (2), a driving wheel (15) arranged on the driving motor (14), and two eccentric rods (16) respectively arranged at the same position of different driving wheels (15) and connected with the rod body of the linkage rod (17), the eccentric rod (16) is arranged at the position away from the center of the end face of the driving wheel (15); The side surface of each protection plate (10) near the control bar (5) is provided with a shaking column (11).

2. A marine IP44 low voltage generator according to claim 1, characterized in that: When the two eccentric rods (16) are located in the same plane, the control blocks (13) arranged on the end face of the control bar (5) near the protection plate (10) are located between two adjacent protection plates (10) and are attached to the edges of the two protection plates (10); the number of the control blocks (13) is a plurality, and the plurality of control blocks (13) are arranged equidistantly along the length direction of the control bar (5); the control block (13) is in a semi-cylindrical structure separated along the axis direction.

3. A marine IP44 low voltage generator according to claim 1, characterized in that: The end face of the installation block (1) near the generator body is provided with an exhaust block (3) opening an exhaust groove (6) penetrating through the protection groove (9), and an exhaust fan (8) arranged on the exhaust block (3) through a fixing strip (7) and located in the exhaust groove (6).

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