How to replace the air-cooled fish attracting lamp and its fan

Abstract

The present invention belongs to the field of lighting technology, and in particular relates to an air-cooled fish collecting lamp and a method for replacing the fan of an air-cooled fish collecting lamp. The air-cooled fish collecting lamp of the present invention comprises: a substrate; a light-emitting unit, mounted on the substrate; a heat sink, comprising a mounting portion and a heat dissipation structure, the substrate being mounted on the mounting portion, the heat dissipation structure being located on the side of the mounting portion facing away from the substrate; a middle plate, connected to the heat sink, a mounting wall being provided on the middle plate, the mounting wall forming a mounting cavity, a clipping structure being provided on the mounting wall; a fan assembly, comprising a housing and fan blades, the fan blades being mounted in the housing, the housing comprising a first mounting plate; when the first mounting plate is located in the mounting cavity and in a first angular position, the first mounting plate is located outside the clipping structure; when the first mounting plate is located in the mounting cavity and in a second angular position, the first mounting plate is clipped to the clipping structure. The present invention can realize the manual replacement of the fan of the fish collecting lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular to an air-cooled fish collecting lamp and a method for replacing a fan of the air-cooled fish collecting lamp. Background Art

[0002] Fishing vessels use lighted fish attracting lights to attract fish, a crucial tool in marine fishing operations. LED fish attracting lights, with their energy-efficient and long lifespan, have gradually replaced traditional metal halide lamps. However, existing LED fish attracting lights still face significant challenges in long-term marine operation, particularly the reliability of their heat dissipation systems, which impacts the overall lifespan of the lamps and fishing efficiency.

[0003] Currently, existing LED fish-attracting lights typically use active cooling, using a fan assembly to forcibly lower the temperature of the lamp beads and heat sink. However, the marine environment is characterized by high salt spray and humidity, and the fan blades are susceptible to corrosion and mechanical wear during long-term operation, resulting in a high failure rate. Once the fan blades are damaged, the heat dissipation efficiency drops sharply, causing the heat sink temperature to rise rapidly, ultimately causing the LED beads to overheat and burn out, seriously affecting the lamp's service life and the continuity of fishing operations.

[0004] Furthermore, the fan assembly of existing fish-attracting lights is typically screwed onto the internal structure of the rear cover. If the fan blades are damaged, users must remove the rear cover and unscrew the retaining screws to replace them. This structural design makes repairs cumbersome and difficult for ordinary users to perform on their own, often requiring the entire light to be returned to the factory for repair. This not only increases transportation and time costs, but also significantly reduces fishery production efficiency. Summary of the Invention

[0005] In view of this, an embodiment of the present invention provides an air-cooled fish attracting lamp for solving the technical problem of difficult maintenance caused by unreasonable fan blade fixing method of existing air-cooled fish attracting lamps.

[0006] The technical solution adopted in the present invention is:

[0007] In a first aspect, the present invention provides an air-cooled fish attracting lamp, comprising:

[0008] substrate;

[0009] a light-emitting unit, mounted on the substrate;

[0010] A heat sink comprising a mounting portion and a heat dissipation structure, wherein the substrate is mounted on the mounting portion and the heat dissipation structure is located on a side of the mounting portion facing away from the substrate;

[0011] a middle plate connected to the heat sink, the middle plate being located on a side of the heat dissipation structure facing away from the base plate, the middle plate being provided with a mounting wall, the mounting wall forming a mounting cavity, and a snap-fit ​​structure being provided on the mounting wall;

[0012] A fan assembly comprises a housing and fan blades, wherein the fan blades are mounted in the housing, and the housing comprises a first mounting plate;

[0013] When the first mounting plate is located in the mounting cavity and at the first angular position, the first mounting plate is located outside the clamping structure;

[0014] When the first mounting plate is located in the mounting cavity and at the second angular position, the first mounting plate is engaged with the engaging structure.

[0015] In a second aspect, the present invention further provides a method for replacing a fan of an air-cooled fish collecting lamp, for replacing the fan assembly in the air-cooled fish collecting lamp of the first aspect, the method comprising:

[0016] S1: Remove the cover from the housing to expose the opening on the housing;

[0017] S2: Disconnect the fan assembly from the power supply.

[0018] S3: Rotate the old fan assembly to an angular position where the first mounting plate is disengaged from the clamping structure;

[0019] S4: Remove the old fan assembly from the air-cooled fish collecting lamp;

[0020] S5: Place the new fan assembly from the opening to the first corner position in the installation cavity;

[0021] S6: Rotate the new fan assembly to a position where the first mounting plate is engaged with the engaging structure;

[0022] S7: Cover the cover on the housing, and insert the positioning post on the cover into the second through hole.

[0023] Beneficial effects: The air-cooled fish collecting lamp and the air-cooled fish collecting lamp fan replacement method of the present invention form an installation cavity through the installation wall on the middle plate, so that the first installation plate in the fan assembly can be rotated within a certain angle, ensuring that the fan assembly always remains coaxial with the heat dissipation structure, avoiding poor heat dissipation caused by installation deviation. And when the fan assembly is placed in the first angular position in the installation cavity, the fan assembly has been preliminarily limited. At this time, it is only necessary to rotate the fan assembly so that the first installation plate is rotated to the position where it is clamped by the clamping structure to achieve detachable installation and fixation of the fan assembly and the middle plate. The installation structure of the present invention can quickly and accurately install the fan assembly in place through a two-step installation method of placing the first installation plate in the installation cavity and rotating the fan assembly to the clamping angle position. When disassembling, first rotate the fan assembly to the angular position where the first installation plate is separated from the clamping structure, and then take the fan assembly out of the installation cavity. Therefore, the fan disassembly process is also very convenient and fast, which is beneficial for users to replace the fan in time by hand without the help of additional tools. The present invention utilizes a positioning column on one side of the cover body to be inserted into the second through hole on the basis of the first mounting plate being clamped with the clamping structure, thereby ensuring that the fan assembly will not loosen when the hull vibrates or the fan assembly itself vibrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work, and these are all within the scope of protection of the present invention.

[0025] Figure 1 This is a schematic diagram of the assembly structure of the air-cooled fish attracting lamp of the present invention;

[0026] Figure 2 This is a schematic diagram of the exploded structure of the air-cooled fish attracting lamp of the present invention;

[0027] Figure 3 Schematic diagram of the arrangement structure of the light-emitting unit in the present invention

[0028] Figure 4 Schematic diagram of the structure of the heat sink in the present invention;

[0029] Figure 5 Schematic diagram of the structure of the middle plate of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the fan assembly of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the fan assembly of the present invention in an angular position where it is not engaged with the middle plate;

[0032] Figure 8It is a structural schematic diagram of the fan assembly of the present invention in an angular position of being engaged with the middle plate;

[0033] Figure 9 Schematic diagram of the structure of the housing in the present invention;

[0034] Figure 10 Schematic diagram of the process of replacing the fan of an air-cooled fish collecting lamp according to the present invention;

[0035] Figure 11 A flow chart of a method for detecting whether a fan of an air-cooled fish collecting lamp needs to be replaced according to the present invention;

[0036] Parts and their numbers in the picture:

[0037] Substrate 1, light-emitting unit 2, heat sink 3, mounting portion 31, heat dissipation structure 32, middle plate 4, first peripheral wall 411, second peripheral wall 412, mounting cavity 42, limiting portion 44, first notch 45, positioning groove 46, protrusion 47, fan assembly 5, shell 51, first mounting plate 511, first through hole 5111, second mounting plate 512, second through hole 5121, fan blade 52, outer shell 6, opening 61, wire storage groove 62, card slot 63, cover 7, buckle 71, positioning column 72, glass plate 8, inner reflector 9, outer reflector 10, bracket 11, geared disc 121, dial 122, power cord 13, first waterproof connector 14, power input line 15, second waterproof connector 16, card plate 431, gap 433. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations, elements defined by the phrase "comprising..." do not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising the elements. The embodiments of the present invention and the features thereof may be combined with each other if there is no conflict, and all are within the scope of protection of the present invention.

[0039] Example 1

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides an air-cooled fish-attracting lamp, which mainly includes a base plate 1, a light-emitting unit 2, a heat sink 3, a middle plate 4 and a fan assembly 5.

[0041] like Figure 3 As shown, the substrate 1 is used to install the light-emitting unit 2, and the light-emitting unit 2 can use LED lamp beads; based on the excellent thermal conductivity and structural stability of aluminum materials, the substrate 1 in this embodiment can use aluminum substrate 1 to meet the efficient heat dissipation requirements of LED lighting. Aluminum has a high thermal conductivity and can quickly transfer heat from the LED chip to the heat sink to avoid heat accumulation. The thermal expansion coefficients of the LED chip and the aluminum substrate 1 are relatively close. When the temperature changes, the thermal stress between the aluminum substrate 1 and the LED solder joints is small, which can reduce the risk of solder joint cracking and thus avoid desoldering due to repeated thermal expansion and contraction. The aluminum substrate 1 has high mechanical strength and can bear the installation requirements of high-power LEDs. At the same time, it is suitable for high-density LED arrays such as fish-gathering lights, and is resistant to vibration and impact, suitable for harsh environments such as ships. Compared with copper substrates, aluminum substrates achieve a better balance between thermal conductivity, weight and cost.

[0042] like Figure 4 As shown, the heat sink 3 in this embodiment includes a mounting portion 31 and a heat dissipation structure 32. The substrate 1 is mounted on the mounting portion 31, and the heat dissipation structure 32 is located on the side of the mounting portion 31 facing away from the substrate 1. One side of the substrate 1 is mounted with a light-emitting element, and the other side is connected to the mounting portion 31 of the heat sink 3. In this way, the heat of the light-emitting unit 2 can be quickly conducted through the substrate 1 to the heat sink 3 on the back of the light-emitting unit 2. The heat generated by the light-emitting unit 2 is dissipated through the heat sink 3, thereby avoiding heat accumulation. In a specific implementation, mounting holes can be machined on the mounting portion 31 and the substrate 1, and then the heat sink 3 and the substrate 1 are connected through the mounting holes using threaded connectors. The heat dissipation mechanism includes a plurality of heat dissipating fins, which are distributed in multiple rings from the inside to the outside. The fins of two adjacent rings are staggered in the circumferential direction. This can make the heat more dispersed during the conduction process, thereby providing heat dissipation efficiency.

[0043] The middle plate 4 of this embodiment is connected to the heat sink 3, and the middle plate 4 is located on the side of the heat dissipation structure 32 facing away from the substrate 1. Figure 5 As shown, the middle plate 4 is provided with a mounting wall, which encloses a mounting cavity 42 and is provided with a snap-fit ​​structure. In a specific implementation, connecting posts can be provided on the middle plate 4 and the mounting portion 31, and connecting holes can be provided in the connecting posts. Then, threaded connectors can be used to connect the middle plate 4 and the mounting portion 31 through the connecting holes. In this embodiment, the middle plate 4 includes a bottom wall and a mounting wall. The mounting wall is located on the side of the bottom wall facing away from the heat sink 3. The wall surface of the mounting wall is formed by extending the surface of the bottom wall in a direction away from the heat sink 3.

[0044] like Figure 6 As shown, the fan assembly 5 of this embodiment includes a housing 51 and blades 52. The blades 52 are mounted within the housing 51, which includes a first mounting plate 511. The fan assembly 5 can be a DC fan. The fan assembly 5 is mounted on the side of the middle plate 4 facing away from the heat sink 3. The DC fan is driven by a brushless motor, which provides concentrated airflow and high efficiency, quickly removing heat from the LEDs and heat sink while operating quietly. The fan speed can be dynamically adjusted using pulse width modulation (PWM), intelligently adjusting the heat dissipation intensity based on the lamp temperature to avoid excessive or insufficient heat dissipation. DC fans consume less energy at the same airflow rate, reducing the overall power consumption of the fish attracting light and extending the battery life of the fishing vessel. DC fans are free of brush wear and have a longer lifespan, making them suitable for long-term, continuous operation. DC fans are generally lighter than AC fans of the same specifications, making them easier to integrate into the fish attracting light structure, reducing the overall weight and making them more suitable for suspended lights on fishing vessels.

[0045] This embodiment achieves a quick and detachable connection of the fan assembly 5 by engaging the snap-fit ​​structure with the first mounting plate 511. The cross-sectional shape of the mounting cavity 42 can be designed to allow the first mounting plate 511 to rotate within a certain angle, for example, from a first angular position to a second angular position.

[0046] like Figure 7 As shown, when the first mounting plate 511 is located in the mounting cavity 42 and is located at the first angular position, the first mounting plate 511 is located outside the clamping structure;

[0047] When installing the fan assembly 5, first mounting plate 511 can be placed within the mounting cavity 42, positioned at an angle outside the latching structure (i.e., the aforementioned first angular position). The surrounding walls of the mounting cavity 42 can then be used to initially position the fan assembly 5, ensuring that the fan assembly 5 is positioned within the mounting cavity 42 and the center of the fan assembly 5 is aligned with the center of the safety cavity. Since the first mounting plate 511 is positioned outside the latching structure, the fan assembly 5 can be rotated within a certain range and easily removed from the mounting cavity 42, facilitating subsequent replacement and maintenance of the fan assembly 5.

[0048] like Figure 8 As shown, when the first mounting plate 511 is located in the mounting cavity 42 and at the second angular position, the first mounting plate 511 is engaged with the engaging structure.

[0049] After the fan assembly 5 is placed in the first angular position in the mounting cavity 42, the fan assembly 5 has been preliminarily limited. At this time, it is only necessary to rotate the fan assembly 5 so that the first mounting plate 511 is rotated to a position where it is engaged by the engaging structure to achieve detachable mounting and fixing of the fan assembly 5 to the middle plate 4. The mounting structure of this embodiment uses a two-step installation method of placing the first mounting plate 511 in the mounting cavity 42 and rotating the fan assembly 5 to the engaging angular position, so that the fan assembly 5 can be quickly and accurately installed in place. When disassembling, first rotate the fan assembly 5 to the angular position where the first mounting plate 511 is separated from the engaging structure, and then remove the fan assembly 5 from the mounting cavity 42. Therefore, the fan disassembly process is also very convenient and fast, which is beneficial for users to replace the fan in a timely manner by hand without the aid of additional tools.

[0050] In this embodiment, four clip-on structures are provided on the mounting wall, and the four clip-on structures are provided at the four corner points when the first mounting plate 511 is in the second angular position. The outer shape of the first mounting plate 511 in the fan assembly 5 can be roughly rectangular, so that the positions of the four corners of the first mounting plate 511 are the four corner points of the first mounting plate 511. In this embodiment, the positions of the four clip-on structures on the mounting wall meet the requirements that when the first mounting plate 511 is rotated to the second angular position, the four clip-on structures are respectively at the four corner points of the first mounting plate 511, and each corner point corresponds to a clip-on structure. In this way, when the fan assembly 5 is rotated to the second angular position of the first mounting plate 511, the four clip-on structures on the mounting wall respectively clamp the four corners of the first mounting plate 511, thereby keeping the position of the fan assembly 5 stable after installation.

[0051] like Figure 5 As shown, in this embodiment, the mounting wall includes a first peripheral wall 411 and a second peripheral wall 412. The first peripheral wall 411 and the second peripheral wall 412 are alternately arranged along the circumferential direction of the mounting wall. The wall surface of the first peripheral wall 411 is rectangular, and the second peripheral wall 412 includes multiple rectangular wall sections, with an obtuse angle between two adjacent wall surfaces.

[0052] When the first mounting plate 511 rotates from the first angular position to the second angular position, the corner point of the first mounting plate 511 faces the second peripheral wall 412. In this embodiment, the first peripheral wall 411 is configured as a rectangular plane structure. In this way, when the first mounting plate 511 rotates in a direction away from the second angular position, it is blocked by the first peripheral wall 411 and cannot rotate. This prevents the fan assembly 5 from rotating in the opposite direction during installation. The second peripheral wall 412 is configured in the form of multiple segments, each segment being a rectangular wall surface, and adjacent wall surfaces forming an obtuse angle. In this way, the corner point of the first mounting plate 511 can be accurately and flexibly rotated toward the second position under the guidance of the second peripheral wall 412, which is conducive to the rapid and accurate installation of the fan assembly 5.

[0053] like Figure 5 As shown, in this embodiment, the clamping structure includes a clamping plate 431 and a clamping protrusion, and the clamping plate 431 extends from one end of the mounting wall facing away from the heat sink 3 toward the center of the mounting cavity 42, and the clamping protrusion is located on the side of the clamping plate 431 facing the heat sink 3. A first through hole 5111 is provided on the first mounting plate 511. When the first mounting plate 511 is rotated from the first angular position to the second angular position, at least a portion of the first mounting plate 511 enters from outside the clamping plate 431 into between the clamping plate 431 and the bottom wall of the mounting cavity 42 and causes at least a portion of the clamping protrusion to be located in the first through hole 5111.

[0054] The clamping plate 431 of this embodiment is formed by extending from one end of the mounting wall facing away from the heat sink 3 toward the center of the mounting cavity 42. In this way, the clamping plate 431 has a cantilever beam structure with one end connected to the mounting wall and the other end being a free end. This not only makes the root structure of the clamping plate 431 stable, but also has good elasticity, which is beneficial to the clamping of the first mounting plate 511.

[0055] This embodiment achieves quick and reliable installation of the fan assembly 5 through the combined structure of the clamping plate 431 and the clamping protrusion. By rotating the fan assembly 5 to the second angular position to rotate the first mounting plate 511 into position, the first mounting plate 511 is pressed between the bottom wall and the clamping plate 431 by utilizing the elasticity of the clamping plate 431 in combination with the protrusion 47 of the clamping protrusion. The elasticity of the clamping plate 431 is then utilized to cause a portion of the clamping protrusion to be embedded in the first through hole 5111. Thus, while the clamping protrusion and the first through hole 5111 are used for positioning, the clamping protrusion constrains the first mounting plate 511, thereby reliably fixing the first mounting plate 511 in the correct position. The entire clamping process only requires rotating the first mounting plate 511 into position to achieve accurate and reliable installation. Therefore, no other tools are required. Not only is installation convenient, but the installation position is precise. The structural reliability after installation is high, which is conducive to the stable operation of the fan assembly 5.

[0056] In this embodiment, gaps 433 are provided on both sides of the portion of the peripheral wall connected to the clamping plate 431 to separate the portion from the rest of the peripheral wall.

[0057] like Figure 5 As shown, in this embodiment, the second peripheral wall 412 is divided into multiple sections by the gap 433. One section is connected to the clamping plate 431. This section is separated from the surrounding second peripheral wall 412 by the gap 433. In this way, the clamping plate 431 can fully deform to clamp the first mounting plate 511 at the second angle. During disassembly, the clamping plate 431 also has sufficient deformation space so that the clamping protrusion can be withdrawn from the first through hole 5111 simply by rotating the fan assembly 5, thereby achieving quick manual disassembly of the fan assembly 5.

[0058] like Figure 5As shown, in this embodiment, the middle plate 4 further includes a limiting portion 44, which extends from the peripheral wall toward the clamping plate 431. The limiting portion 44 is located on one side of the preset direction of the clamping plate 431, which is the direction in which the first mounting plate 511 rotates from the first angular position to the second angular position. When the first mounting plate 511 rotates from the first angular position to the second angular position, the first mounting plate 511 abuts the limiting portion 44. At this time, the first mounting plate 511 is blocked by the limiting portion 44 and cannot continue to rotate, thereby accurately confining the first mounting plate 511 to the second angular position. Because the limiting portion 44 is located on one side of the preset direction of the clamping plate 431, the first mounting plate 511 can be limited after the clamping plate 431 is engaged with the first mounting plate 511. This can improve the accuracy of the installation of the fan assembly 5 and the accuracy of the installation of the fan assembly 5.

[0059] In this embodiment, a first notch 45 is provided on the bottom wall of the mounting cavity 42, and the projection of the retaining plate 431 on the bottom wall is located in the first notch 45. This structure allows the first notch 45 to be located directly below the retaining plate 431, providing the retaining plate 431 with ample room for deformation. This facilitates removal of the fan assembly 5 by simply rotating the fan assembly 5 to quickly withdraw the retaining projection from the first through hole 5111.

[0060] In this embodiment, the bottom wall is provided with a positioning groove 46 that complements the outer profile of the first mounting plate 511. When the mounting plate is in the first angular position, at least a portion of the first mounting plate 511 is located in the positioning groove 46. The positioning groove 46 is provided with a protrusion 47 at the corner. When installing the fan assembly 5, the user can first place the first mounting plate 511 in the positioning groove 46 and then rotate the fan assembly 5 to the second angular position, thereby quickly and accurately installing the fan assembly 5. When removing the fan assembly 5, the user can first rotate the fan assembly 5 until the first mounting plate 511 is located in the positioning groove and then remove the fan, thereby quickly removing the fan assembly 5.

[0061] like Figure 1 and Figure 9 As shown, the air-cooled fish attracting lamp of this embodiment further includes a housing 6 and a cover 7. The housing 6 covers the end of the fan blade 52 facing away from the heat sink 3. The end of the housing 6 facing away from the heat sink 3 is provided with an opening 61. The cover 7 covers the opening 61. A slot 63 is provided on the housing 6. A buckle 71 is provided on the edge of the cover 7 along the circumferential direction. The buckle 71 is snapped into the slot 63.

[0062] The cover 7 can prevent the fish attracting lamp from sucking in foreign matter such as leaves, debris, flies and insects. The cover 7 is fixed with a buckle 71 and can be disassembled and assembled without tools.

[0063] like Figure 6 As shown, the shell 51 includes a second mounting plate 512, which is located on the side of the first mounting plate 511 facing away from the heat dissipation assembly. A second through hole 5121 is provided on the second mounting plate 512, and a positioning column 72 is provided on the side of the cover body 7 facing the second mounting plate 512, and at least a portion of the positioning column 72 is inserted into the second through hole 5121.

[0064] The positioning posts 72 provided on the cover 7 face the second through holes 5121 at the four corners of the fan. When the cover is closed, the positioning posts 72 can be inserted into the fan fixing holes to prevent the fan from rotating and moving, thereby further improving the reliability of the installation.

[0065] like Figure 2 As shown, the air-cooled fish attracting lamp also includes a glass plate 8, an inner reflector 9, and an outer reflector 10. A third through-hole is provided in the middle of the base plate 1, and the inner reflector 9 is mounted at the third through-hole. The outer reflector is located at the outer edge of the base plate 1. The outer reflector 10 is pressed against the base plate 1 by the glass plate 8, with the inner reflector 9 mounted at the center of the base plate 1 and the outer reflector mounted on the outer ring of the base plate 1. The light-emitting units 2 are distributed in the annular area between the inner reflector 9 and the outer reflector. In this way, the light emitted by the light-emitting units 2 can be reflected by the inner and outer reflectors and illuminate the predetermined area, thus preventing excessive light dispersion.

[0066] The air-cooled fish-attracting lamp also includes a bracket 11, which is rotatably connected to the heat sink 3 via a connecting assembly. The connecting assembly includes a toothed disc 121 and a dial 122. The dial 122 is provided with a scale indicating an angle. One of the dial 122 and the toothed disc 121 is provided with circumferentially distributed teeth, and the other is provided with circumferentially distributed tooth grooves, and the teeth snap into the tooth grooves. The toothed disc 121 is fixed to the heat sink 3, while the dial 122 is connected to the bracket 11. When the bracket 11 is rotated to the appropriate angle, the teeth snap into the tooth grooves, allowing the fish-attracting lamp to flexibly adjust the illumination direction after installation.

[0067] The end of the power cord 13 is provided with a first waterproof connector 14. The fan assembly 5 also includes a power input cable 15, one end of which is provided with a second waterproof connector 16, which is configured to plug into the first waterproof connector 14. With this structure, the fan can be powered by the waterproof connector and connected to the power supply, making it easy to plug and unplug the power supply, thereby facilitating replacement.

[0068] The housing 6 is provided with a wire-hiding groove 62 for accommodating the power line 13. After the fan assembly 5 is installed and the waterproof connector is connected, the power input line 15 can be hidden in the wire-hiding groove 62.

[0069] Example 2

[0070] like Figure 10 As shown, this embodiment provides a method for replacing the fan blades 52 of the air-cooled fish collecting lamp, which is used to replace the fan assembly 5 in the air-cooled fish collecting lamp in Example 1. The method includes:

[0071] S1: Remove the cover 7 from the housing 6 to expose the opening 61 on the housing 6;

[0072] Since the cover 7 is connected to the housing 6 via the buckle 71 , the buckle 71 can be opened by hand to remove the cover 7 .

[0073] S2: Disconnect the fan assembly from the power supply.

[0074] During the specific operation, the second waterproof connector 16 of the power input line 15 can be disconnected from the first waterproof connector 14 .

[0075] S3: Rotate the old fan assembly 5 to an angular position where the first mounting plate 511 is disengaged from the clamping structure;

[0076] In specific implementation, the fan assembly 5 can be rotated around the rotation axis in a direction away from the clamping structure until the first mounting plate 511 is disengaged from the clamping structure.

[0077] S4: Remove the old fan assembly 5 from the air-cooled fish collecting lamp;

[0078] After the cover 7 is disassembled, the opening 61 of the shell 6 is opened, and the old fan assembly 5 can be taken out by punching the opening 61. Before taking out, the power input line 15 hidden in the hidden line groove 62 can be taken out first, and the waterproof connector can be disassembled.

[0079] S5: Place the new fan assembly 5 through the opening 61 into the first angular position in the installation cavity 42;

[0080] During specific implementation, the new fan assembly 5 can be placed into the positioning groove 46 .

[0081] S6: Rotate the new fan assembly 5 to a position where the first mounting plate 511 is engaged with the engaging structure;

[0082] After the clamping, the lower part of the fan assembly 5 is fixed on the middle plate 4. After the clamping is in place, the waterproof connector can be plugged in, and then the power input line 15 is hidden in the line groove 62.

[0083] S7: Cover the cover 7 on the housing 6 and insert the positioning post 72 on the cover 7 into the second through hole 5121 .

[0084] After the cover 7 is closed, the positioning posts 72 extend into the second through holes 5121 of the second mounting plate 512 to prevent the fan from rotating and moving.

[0085] like Figure 11 As shown, before the step S1: removing the cover 7 from the housing 6 to expose the opening 61 on the housing 6, the following steps are also included:

[0086] S01: Obtaining preset conditions that must be met when replacing a fan;

[0087] For example, the fan current being too low or too high may be used as a condition to be met during replacement.

[0088] S02: Detection of electrical parameters related to the fan;

[0089] Among them, the fan's related electrical parameters include the fan's driving current, driving voltage, operating power and other electrical parameters.

[0090] S03: Determine whether the fan needs to be replaced based on the electrical parameters and preset conditions;

[0091] When the electrical parameters meet the preset conditions, it can be determined that the fan needs to be replaced.

[0092] S04: If the fan needs to be replaced, a replacement prompt signal is generated and the working state of the air-cooled fish collecting lamp is adjusted.

[0093] Wherein the prompt signal can be sent by the light-emitting mode of the fan indicator light on the cover body 7, thereby prompting the user to replace the fan. When the replacement prompt signal is generated, the lamp can be turned off to avoid damage to the lamp due to overheating.

[0094] The S03 further includes:

[0095] S031: Periodically record the electrical parameters of the fan and store them in segments according to a predetermined time period to form multiple historical operation data segments;

[0096] S032: Obtaining trend slope values ​​of fan parameters corresponding to each wind data segment according to the data segment;

[0097] The step of obtaining the trend slope value of the fan power parameter corresponding to each wind data segment according to the data segment includes:

[0098] Smoothing each data segment;

[0099] This embodiment performs smoothing processing on each data segment, for example, using an exponentially weighted moving average (EWMA) or sliding average method to remove short-term noise caused by environmental interference;

[0100] Perform linear fitting on the smoothed data segments and calculate the trend slope value of the fan electrical parameters based on the fitting results;

[0101] In this embodiment, the least squares method is used for linear fitting of each pre-processed data segment to calculate the trend slope value of the fan electrical parameter; the fan electrical parameter includes current or rotation speed.

[0102] S033: Analyze the trend slope value to determine whether the fan has entered an accelerated degradation state;

[0103] Includes: obtaining the trend slope of the latest data segment;

[0104] Get the average of the trend slopes of several previous data segments;

[0105] Calculating a change ratio of the trend slope based on the trend slope of the latest data segment and the average value;

[0106] When the change ratio exceeds a set warning threshold, it is determined that the fan has entered an accelerated degradation state;

[0107] To ensure the accuracy of the judgment, it can be set so that only when the trend slope change ratio of two or more consecutive latest data fragments exceeds the above-mentioned set threshold, it is finally determined that the fan has indeed entered a stable accelerated degradation state. At this time, subsequent comprehensive degradation indicator evaluation can be prepared.

[0108] S034: If yes, obtain the stage-by-stage comprehensive degradation index based on the characteristic values ​​of the fan electrical parameter change trends and the time series relationship of the characteristic values ​​in each stage;

[0109] Specifically include:

[0110] According to the trend slope value corresponding to each data segment, the historical data is divided into multiple continuous trend analysis stages, and the characteristic value of the fan electrical parameter change trend in each stage is obtained;

[0111] Determine the weight of each trend characteristic value according to the temporal relationship of the stage to which the trend characteristic value belongs;

[0112] The trend characteristic value of the most recent stage is given the greatest weight, the trend characteristic value of the second most recent stage is given the second highest weight, and the weight of the earlier stages is gradually reduced to highlight the importance of recent data;

[0113] The weighted comprehensive calculation of the trend characteristic values ​​of each historical stage is performed according to the weight of each trend characteristic value to obtain the stage-by-stage comprehensive degradation index. This index reflects the cumulative effect of fan degradation in multiple stages;

[0114] After each initial operation or replacement maintenance of the fan, the baseline value of the staged comprehensive degradation index under normal operating conditions is automatically recalculated and updated to dynamically adapt to individual differences in fans and changes in environmental conditions;

[0115] Specifically, after each fan's initial operation or replacement maintenance, the control unit collects and records the fan's electrical parameter data under normal operating conditions during an initial period of stable operation (e.g., several operating cycles). It then performs trend analysis and calculates the trend characteristic values ​​for that period. A weighted comprehensive evaluation is then performed based on these trend characteristic values ​​to determine the initial comprehensive degradation index. The system uses this index as the initial normal operating baseline for comparisons of subsequent operating conditions.

[0116] In addition, based on the staged comprehensive degradation index, factors such as the fan's cumulative operating time, current load changes, and ambient temperature and humidity are further integrated to form a more comprehensive multi-dimensional comprehensive degradation index;

[0117] S035: Determine whether the fan needs to be replaced based on the staged comprehensive degradation indicators.

[0118] When the staged comprehensive degradation index or the multi-dimensional comprehensive degradation index exceeds the dynamically updated warning threshold, it is determined that the fan has entered a state of obvious degradation, and a maintenance warning signal is issued in advance to prompt the user to replace components in time.

[0119] The step S035 of determining whether the fan needs to be replaced based on the staged comprehensive degradation index further includes:

[0120] When the staged comprehensive degradation index exceeds the warning threshold, the fan is controlled to perform a short reverse purge operation;

[0121] When the staged comprehensive degradation index exceeds the warning threshold and the system determines that the fan has entered a state of obvious degradation, a short routine reverse purge maintenance operation is performed. The fan runs in the reverse direction for about 3-5 seconds to actively remove the initial salt spray or deposits on the heat sink and fan blades.

[0122] After the short reverse purge is completed, re-collect the fan electrical parameters;

[0123] After completing the short purge, the system automatically collects the fan electrical parameters (current, speed, etc.) in real time again to obtain the latest fan operating status.

[0124] Calculate new stage-by-stage comprehensive degradation indicators based on the re-collected fan electrical parameters;

[0125] This embodiment recalculates the current stage comprehensive degradation index and compares it with the comprehensive degradation index before purging:

[0126] If the new phased comprehensive degradation index decreases by more than the preset decrease, it will return to the normal detection state;

[0127] If the staged comprehensive degradation index decreases significantly after purging (for example, the decrease exceeds the preset 20%), it indicates that the fan degradation is partially due to surface deposits and there is no serious internal damage. In this case, there is no need to replace the fan immediately. Simply restore the fan to normal monitoring status and adjust the next indicator monitoring cycle.

[0128] If the decrease in the new stage-by-stage comprehensive degradation index does not exceed the preset decrease value, a strong purge operation is performed.

[0129] If the periodic comprehensive degradation index decreases slightly after purging, it is judged that the short-term conventional purging effect is insufficient, and a stronger secondary enhanced purging maintenance action is automatically executed.

[0130] S81: When it is detected that the fan has been replaced and powered on for the first time, it enters the automatic parameter calibration state;

[0131] For example, if it is detected that the fan has never been running, that is, the running time is 0, or the control unit detects that the fan interface is disconnected and then connected, or the maintenance log records a fan replacement operation, it indicates that the fan has been replaced and powered on for the first time;

[0132] S82: Loading pulse width modulation signals with different duty cycles to drive the fans to operate in sequence, and collecting fan behavior characteristic data;

[0133] This step dynamically loads signals with different duty cycles (e.g., 40%, 60%, and 80%) to sequentially drive the fan. Each duty cycle signal is a gear. Each gear runs for the same preset time. During operation, the following data is collected in real time: the nonlinear relationship between drive current and duty cycle; the time required to start to a stable speed; the current fluctuation range and power factor of each gear; the speed rise slope; and the degree of current drop hysteresis.

[0134] S83: Compare the collected fan behavior characteristic data with the behavior characteristic data of an original standard fan, an aged, good fan, and a fan with degraded performance;

[0135] The original standard fan is an original fan with normal performance. The aged benign fan is a benign fan that has aged after being exposed to a humid environment. In specific implementation, individual data of fans that have been operating normally for a long time without any abnormalities can be obtained from the air-cooled fish collecting lamp. For example, fans that have been running for more than 100 hours and have never triggered a maintenance warning can be found. The operating parameters of these fans can be traced back to extract their current-speed curves, response time curves, etc. Although these fans have slight aging phenomena such as a slight increase in current and a slight decrease in speed, they are highly stable. Their behavioral characteristics can be classified as a benign aging model in this embodiment. This embodiment can collect behavioral characteristic data of such fans.

[0136] Performance-degraded fans refer to fans that are severely corroded or improperly maintained, such as fans with oxidized brushes or fans with salt corrosion on power connectors. The behavioral characteristic data for these models can be obtained when using the aforementioned method to determine the accelerated degradation of the fan.

[0137] S84: Adjust operating parameters according to the comparison results.

[0138] Including: S841: If the comparison result shows that the operating characteristics of the current fan match the original standard fan, the default operating parameter configuration is adopted, and the energy-saving optimization strategy is activated according to the current ambient temperature and load status;

[0139] In this embodiment, if the comparison result shows that the operating characteristics of the current fan match the original standard fan, the default operating parameter configuration is restored and enabled, and the energy-saving optimization strategy is further started according to the current ambient temperature and load status. In the specific implementation process, the system adopts a fast startup mode, that is, a higher pulse width modulation duty cycle is directly applied during the fan startup phase. For example, the duty cycle can be increased to 70% to increase the speed to the target in the shortest time. At the same time, if the temperature of the LED module is in a low temperature or constant area, the system will dynamically lower the fan operating power to avoid unnecessary energy consumption. In addition, considering that the operating state of this type of fan is stable, the system will reduce the frequency of operating state monitoring and extend the evaluation period of the phased comprehensive degradation index to 6 hours to reduce the computing load. This type of fan can also be marked as a stable fan for subsequent reference as a behavioral template to participate in the behavioral comparison modeling of other fans.

[0140] In this embodiment, if the comparison result shows that the operating characteristics of the current fan match those of an aged, benign fan, a gentle drive and medium-frequency monitoring operation strategy is executed. In this case, at the initial start-up of the fan, the system adopts a slow start mechanism, sets the PWM duty cycle to a lower level, for example, it can reduce the index to 50%, and gradually increases it to the target operating power within 5 seconds to avoid instantaneous current shocks caused by bearing resistance or brush wetting. The system will also actively limit the maximum operating power, such as setting the duty cycle upper limit to 85%, to prevent the fan from aging rapidly under high voltage or high load conditions. In terms of operation monitoring, the system sets the evaluation cycle of the staged comprehensive degradation index to once every 2 hours, and continuously performs offset comparison with the behavior curve of the fan during initial calibration. Once the current behavioral parameters of the fan deviate from the initial value by more than 20%, the system will automatically trigger a degradation warning prompt, prompting the user to pay attention to the potential aging trend of the fan and prepare spare parts for replacement.

[0141] In this embodiment, if the comparison results indicate that the current fan's operating characteristics match those of a degraded fan, power limiting protection and intensive monitoring mechanisms are immediately implemented. During the startup phase, the system limits the fan's startup power to a low level, for example, by limiting the PWM duty cycle to below 40%, and completes the startup process through a phased ramp-up process. During operation, the maximum duty cycle does not exceed 65% to reduce thermal load and risk. The system also enables high-frequency degradation monitoring, shortening the update cycle of the phased comprehensive degradation index to 30 minutes, and introducing a short-cycle peak monitoring mechanism to capture abnormal current fluctuations. In addition, to prevent misjudgments due to fan failure or assembly deviations, the system implements a delayed confirmation window after the fan's first operation. If the behavioral characteristics do not improve within 10 hours of operation, a prompt is issued to replace the fan. If the fan is newly installed, the system may also prompt the user to check for assembly defects such as improper fastening or loose connectors to ensure the integrity and safety of maintenance operations.

[0142] The above is a detailed introduction to the air-cooled fish collecting lamp and the method for replacing the fan of the air-cooled fish collecting lamp provided in the embodiments of the present invention.

[0143] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0144] The functional blocks shown in the block diagrams described above can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they may be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, and the like. When implemented in software, the elements of the present invention are programs or code segments used to perform the desired tasks. Programs or code segments may be stored in a machine-readable medium or transmitted via a data signal carried in a carrier wave over a transmission medium or communication link. "Machine-readable medium" may include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memory, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and the like. Code segments may be downloaded via a computer network such as the Internet or an intranet.

[0145] It should also be noted that the exemplary embodiments described herein describe methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the steps described above. In other words, the steps may be performed in the order described in the embodiments, or in a different order, or several steps may be performed simultaneously.

[0146] The above description is only a specific embodiment of the present invention. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention.

Claims

1. Air-cooled fish attracting lamp, characterized by: include: substrate; a light-emitting unit, mounted on the substrate; A heat sink comprising a mounting portion and a heat dissipation structure, wherein the substrate is mounted on the mounting portion and the heat dissipation structure is located on a side of the mounting portion facing away from the substrate; a middle plate connected to the heat sink, the middle plate being located on a side of the heat dissipation structure facing away from the base plate, the middle plate being provided with a mounting wall, the mounting wall forming a mounting cavity, and a snap-fit ​​structure being provided on the mounting wall; A fan assembly comprises a housing and fan blades, wherein the fan blades are mounted in the housing, and the housing comprises a first mounting plate; When the first mounting plate is located in the mounting cavity and at the first angular position, the first mounting plate is located outside the clamping structure; When the first mounting plate is located in the mounting cavity and at the second angular position, the first mounting plate is engaged with the engaging structure; The clamping structure includes a clamping plate and a clamping protrusion, wherein the clamping plate extends from one end of the mounting wall facing away from the heat sink toward the center of the mounting cavity, and the clamping protrusion is located on a side of the clamping plate facing the heat sink. A first through hole is provided on the first mounting plate, and when the first mounting plate is rotated from the first angular position to the second angular position, at least a portion of the first mounting plate enters from outside the clamping plate between the clamping plate and the bottom wall of the mounting cavity, and causes at least a portion of the clamping protrusion to be located in the first through hole. The clamping plate has a structure in which one end is connected to the mounting wall and the other end is a free end. The mounting wall includes a first circumferential wall and a second circumferential wall, and gaps are provided on both sides of the portion of the circumferential wall connected to the clamping plate, which are separated from the rest of the circumferential wall. The middle plate also includes a limiting portion, which extends from the circumferential wall toward the clamping plate. The limiting portion is located on one side of a preset direction of the clamping plate, and the preset direction is the direction in which the first mounting plate rotates from the first angular position to the second angular position.

2. The air-cooled fish attracting lamp according to claim 1, characterized in that: The mounting wall is provided with four clamping structures, and the four clamping structures are arranged at four corner points when the first mounting plate is in the second angular position. The first peripheral wall and the second peripheral wall are alternately arranged along the circumferential direction of the mounting wall. The wall surface of the first peripheral wall is rectangular, and the second peripheral wall includes multiple rectangular wall sections, and an obtuse angle is formed between two adjacent wall sections. When the first mounting plate rotates from the first angular position to the second angular position, the corner point of the first mounting plate faces the second peripheral wall.

3. The air-cooled fish attracting lamp according to claim 1, characterized in that: A first notch is provided on the bottom wall of the mounting cavity, and the projection of the card plate on the bottom wall is located in the first notch. A positioning groove complementary to the outer contour of the first mounting plate is provided on the bottom wall. When the first mounting plate is located at the first corner position, at least a portion of the mounting plate is located in the positioning groove, and protrusions are provided at the corner positions of the positioning groove.

4. The air-cooled fish attracting lamp according to claim 1, characterized in that: The heat dissipation fan further comprises a shell and a cover, wherein the shell cover is arranged at an end of the fan blade facing away from the heat dissipation element, an opening is provided at the end of the shell facing away from the heat dissipation element, the cover covers the opening, a slot is provided on the shell, a buckle is provided on the edge of the cover along the circumferential direction, and the buckle is snapped into the slot; the shell comprises a second mounting plate, the second mounting plate is located on a side of the first mounting plate facing away from the heat dissipation assembly, a second through hole is provided on the second mounting plate, a positioning column is provided on a side of the cover facing the second mounting plate, and at least a portion of the positioning column is inserted into the second through hole.

5. The method for replacing the fan of the air-cooled fish collecting lamp is characterized in that: For replacing the fan assembly in the air-cooled fish attracting lamp according to any one of claims 1 to 4, the method comprising: S01: Obtaining preset conditions that must be met when replacing a fan; S02: Detection of electrical parameters related to the fan; S03: Determine whether the fan needs to be replaced based on the electrical parameters and preset conditions; S04: If the fan needs to be replaced, a replacement prompt signal is generated and the working state of the air-cooled fish collecting lamp is adjusted.

6. The method according to claim 5, characterized in that The S03 further includes: S031: Periodically record the electrical parameters of the fan and store them in segments according to a predetermined time period to form multiple historical operation data segments; S032: Obtaining trend slope values ​​of fan parameters corresponding to each wind data segment according to the data segment; S033: Analyze the trend slope value to determine whether the fan has entered an accelerated degradation state; S034: If yes, obtain the stage-by-stage comprehensive degradation index based on the characteristic values ​​of the fan electrical parameter change trends and the time series relationship of the characteristic values ​​in each stage; S035: Determine whether the fan needs to be replaced based on the staged comprehensive degradation indicators.

7. The method according to claim 6, characterized in that The S035 further includes: When the staged comprehensive degradation index exceeds the warning threshold, the fan is controlled to perform a short reverse purge operation; After the short reverse purge is completed, re-collect the fan electrical parameters; Calculate new stage-by-stage comprehensive degradation indicators based on the re-collected fan electrical parameters; If the new phased comprehensive degradation index decreases by more than the preset decrease, it will return to the normal detection state; If the decrease in the new stage-by-stage comprehensive degradation index does not exceed the preset decrease value, a strong purge operation is performed.

8. The method according to any one of claims 5 to 7, characterized in that The following steps are involved: S1: Remove the cover from the housing to expose the opening on the housing; S2: Disconnect the fan assembly from the power supply. S3: Rotate the old fan assembly to an angular position where the first mounting plate is disengaged from the clamping structure; S4: Remove the old fan assembly from the air-cooled fish collecting lamp; S5: Place the new fan assembly from the opening to the first corner position in the installation cavity; S6: Rotate the new fan assembly to a position where the first mounting plate is engaged with the engaging structure; S7: Cover the cover on the housing, and insert the positioning post on the cover into the second through hole.

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