A floating magnetic brake structure and fishing reel

Abstract

The utility model provides a kind of floating type magnetic brake structure, set in fishing reel side cover, include multiple floating type magnet mounting seat of annular arrangement, the guiding strip that floating type magnet mounting seat includes is connected with side cover by elastic member, realize the radial floating installation of magnet.Working, wire cup rotation speed accelerates, the magnetic flux change rate of annular conductor in wire cup fast cutting magnetic field is caused to increase, and then make magnetite close to wire cup, enhance brake force;Wire cup deceleration, annular conductor cutting magnetic field causes the magnetic flux change rate to reduce, elastic member rebounds, magnet resets, reduce brake force.Therefore, it can automatically adjust brake force intensity with rotation speed change, automatically sensitively adjust the size of brake force in the process of fishing reel line throwing with the change of wire cup speed, adjust the balance of wire cup wire speed and bait movement speed, prevent wire accumulation on wire cup, cause wire cup's "fried rice flour".The application also provides a kind of fishing reel, can effectively prevent line explosion when high speed throwing.

Description

Technical Field

[0001] This utility model relates to the field of fishing reel technology, specifically a floating magnetic brake structure and a fishing reel. Background Technology

[0002] A fishing reel is a common casting device used in fishing activities. Its main function is to provide sensitive and controllable spool rotation during casting. Currently, the braking systems widely used in mid-to-high-end fishing reels are mainly of two types: mechanical brakes and magnetic brakes. Among them, magnetic brakes, due to their advantages of being contactless and having low wear, perform particularly well in high-speed casting and high-precision control, and are gradually becoming the mainstream development direction for fishing reel braking systems.

[0003] Existing magnetic braking structures mostly employ a fixed magnet mounting method, where the magnet is fixedly installed on the inside of the fishing reel's side cover, relying on the electromagnetic eddy currents generated when it rotates relative to the spool for braking. While this structure can achieve a certain braking effect, the fixed magnet cannot automatically adjust the distance between itself and the spool according to the spool's rotation speed. This makes it difficult to maintain braking force at both high and low speeds, resulting in insensitive braking response and a risk of the spool over-winding or line breakage. Furthermore, the fixed structure cannot effectively buffer the vibrations and impacts from high-speed rotation, affecting the stability and lifespan of the braking system.

[0004] In view of this, some technical solutions have attempted to introduce adjustable magnetic braking structures, but problems such as response lag and limited adjustment range still exist. Therefore, it is necessary to provide a magnetic braking device that is responsive and can automatically adjust the braking force according to the spool speed to improve the overall performance and operating experience of the fishing reel. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a floating magnetic brake structure and fishing reel, which effectively improves some of the problems of slow response, insensitive adjustment, and poor vibration resistance of traditional magnetic brakes. It realizes automatic adjustment of braking force according to the spool speed, thereby improving casting control accuracy and overall operational stability.

[0006] A floating magnetic brake structure is installed inside the side cover of a fishing reel and acts on the spool. It includes multiple floating magnet mounting seats arranged in a ring on the inner side of the side cover. Each floating magnet mounting seat has a mounting groove on the side facing the spool, and an arc-shaped magnet is placed in the mounting groove. Guide strips are provided on both sides of the floating magnet mounting seat. The guide strips are connected to the side cover by an elastic element so that the floating magnet mounting seat is floatingly installed inside the side cover.

[0007] Preferably, the elastic element is a torsion spring.

[0008] Furthermore, an annular bracket is provided on the inner side of the side cover. The annular bracket has multiple arc-shaped mounting positions for mounting the floating magnet mounting base. Each side of the arc-shaped mounting position of the annular bracket has a mounting hole. The torsion spring is installed in the mounting hole, and one end of the torsion spring is sleeved on the guide strip.

[0009] Preferably, it also includes an arc-shaped cover plate, which is screwed into the mounting hole of the annular bracket.

[0010] Preferably, there are two floating magnet mounting bases, symmetrically arranged inside the side cover.

[0011] Preferably, the magnetic poles at both ends of the arc-shaped magnet are opposite.

[0012] A fishing reel includes a main body, a spool for reeling in and out fishing line and capable of rotating relative to the main body, and a side cover, wherein the floating magnetic brake structure is installed inside the side cover.

[0013] Preferably, the fishing reel body includes a main shaft, and the spool is sleeved on the main shaft and forms a transmission connection with the main shaft.

[0014] Preferably, the spool includes a spool body and an annular conductor disposed at one end of the spool body, the annular conductor being installed between the floating magnet mounting base and an annular spindle mounting base disposed in the middle of the side cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention provides a floating magnetic braking structure. Multiple floating magnet mounting seats are arranged in a ring inside the side cover of the fishing reel, and guide strips are installed on the floating magnet mounting seats. The two ends of the guide strips are connected to the side cover via elastic elements, allowing the floating magnet mounting seats to float within the side cover by the extension or repositioning of the elastic elements. During operation, as the spool rotates faster, the annular conductor on the spool continuously and rapidly cuts the static magnetic field of the arc-shaped magnet on the floating magnet mounting seat, resulting in a significant increase in the rate of change of magnetic flux through the annular conductor. According to Faraday's law of electromagnetic induction, this change induces strong eddy currents within the annular conductor. The induced magnetic field generated by these eddy currents is opposite in direction to the magnetic field polarity of the arc-shaped magnet, thus pushing the floating magnet mounting seats to overcome the resistance of the elastic elements and move towards the annular conductor, thereby reducing the distance between the arc-shaped magnet and the annular conductor. Since the strength of the magnetic field is inversely proportional to the square of the distance, the braking force of the arc-shaped magnet on the spool increases, and the elastic elements are stretched and store elastic potential energy during this process. As the spool rotation speed decreases, the rate of change of magnetic flux through the annular conductor decreases, leading to a weakening of the induced eddy current intensity. The elastic potential energy of the elastic element is released, pulling the floating magnet mounting base back to its original position. The distance between the arc-shaped magnet and the annular conductor increases, and the braking force decreases synchronously. Therefore, this floating magnetic brake structure can automatically and sensitively adjust the braking force according to the change in spool speed during casting, balancing the spool's line release speed and the lure's movement speed. This prevents the fishing line from piling up on the spool, avoiding the "rice flour" effect, and also avoids the problem of inconsistent braking force at different rotation speeds in traditional fixed magnet structures, improving overall stability and controllability. This application also provides a fishing reel incorporating the aforementioned floating magnetic brake structure. By integrating this brake structure inside the reel's side cover, the reel can adaptively adjust the spool rotation speed during use, eliminating the need for manual adjustment of the braking force by the user, significantly improving the ease and stability of casting. This fishing reel can achieve rapid and effective braking during high-speed casting to prevent the spool from spinning too fast and causing line breakage or tangling; at low speeds, it can automatically reduce braking force to ensure smooth casting and avoid dragging or jamming. Therefore, it is suitable for a variety of fishing scenarios. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the fishing reel described in this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the side cover described in this utility model;

[0019] Figure 3 This is a schematic diagram of the floating magnetic brake structure inside the side cover of the present invention.

[0020] Figure 4This is a partial structural diagram of the floating magnetic brake structure inside the side cover of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the spool described in this utility model;

[0022] in:

[0023] 10-Side cover, 20-Spool, 11-Floating magnet mount, 12-Mounting groove, 13-Arc-shaped magnet, 14-Guide strip, 15-Torsion spring, 16-Annular bracket, 17-Arc-shaped mounting position, 18-Mounting hole, 19-Limiting post, 110-Arc-shaped cover plate, 30-Fishing reel body, 40-Main shaft, 21-Spool body, 22-Annular conductor. Detailed Implementation

[0024] The embodiments described below are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] See Figures 2-4 This embodiment provides a floating magnetic brake structure, which is installed inside the side cover 10 of a fishing reel and acts on the spool 20. It includes a plurality of floating magnet mounting seats 11 arranged in a ring on the inner side of the side cover 10. The floating magnet mounting seat 11 has a mounting groove 12 on the side facing the spool 20. An arc-shaped magnet 13 is arranged in the mounting groove 12. Guide strips 14 are arranged on both sides of the floating magnet mounting seat 11. The guide strips 14 and the side cover 10 are connected by an elastic element, so that the floating magnet mounting seat 11 can float and move under the combined action of magnetic field and elastic restoring force.

[0026] Preferably, the elastic element is a torsion spring 15. The torsion spring 15 is made of stainless steel wire with a large elastic modulus, and the wire diameter is generally 0.3~0.5 mm, so as to ensure that it can provide stable and repeatable tensile and restoring force within the maximum displacement stroke range of the magnet mounting base 11, while having good fatigue resistance and corrosion resistance during high-frequency throwing.

[0027] Furthermore, an annular retaining seat 16 is provided on the inner side of the side cover 10. The annular retaining seat 16 has multiple arc-shaped mounting positions 17 for mounting the floating magnet mounting base 11. Each arc-shaped mounting position 17 of the annular retaining seat 16 has a mounting hole 18 on both sides. The mounting hole 18 has a B-shaped cross-section. The opening of the B-shaped mounting hole 18 is used to accommodate the torsion spring 15 body coil and allow it to stably store energy under tension. The waist of the B-shaped mounting hole 18 is used to accommodate one end of the torsion spring 15. The other end of the torsion spring 15 is sleeved on the guide strip 14. In this application, the annular retaining seat 16 achieves a limiting connection through multiple limiting posts 19 provided on the side cover 10. Furthermore, this application also includes an arc-shaped cover plate 110, which is screwed into the mounting hole 18 of the annular retainer 16. It should be noted that the arc-shaped cover plate 110 is also screwed into the threaded hole on the limiting post 19. The arc-shaped cover plate 110 serves to limit the annular retainer 16 and prevents the torsion spring 15 from dislodging. The screw connection between the arc-shaped cover plate 110 and the limiting post 19 facilitates quick disassembly and assembly during later maintenance. Only the screws on the arc-shaped cover plate 110 need to be removed to remove the torsion spring 15 or replace the arc-shaped magnet 13, greatly improving the convenience and reliability of assembly and maintenance.

[0028] It should be noted that the arc-shaped mounting position 17 of the annular mounting base 16 is recessed from the side closer to the spool 20 to the side farther away from the spool 20. When the rotation speed of the spool 20 increases, the eddy current generated by the cutting magnetic field intensifies, and the floating magnet mounting base 11 slides from the arc-shaped mounting position 17 toward the spool 20. The faster the rotation speed of the spool 20, the closer the floating magnet mounting base 11 is to the spool 20, and the greater the braking force. At the same time, the guide bars 14 on both sides will drive the torsion spring 15 to be passively stretched and store a certain amount of elastic potential energy. When the spool 20 decelerates, the magnetic field weakens, the torsion spring 15 releases the stored energy, and the magnet mounting base 11 smoothly moves upward along the bottom of the same recessed groove until it returns to the shallowest position, completing one continuous and controllable reciprocating floating cycle.

[0029] Preferably, two floating magnet mounting bases 11 are provided, symmetrically arranged within the side cover 10. This ensures the balance and stability of the magnetic braking effect. Specifically, the two sets of floating magnet mounting bases 11 are respectively installed at symmetrical positions on the annular bracket 16, enabling them to synchronously respond to the magnetic field changes generated by the high-speed rotation of the spool 20 during operation. This causes the arc-shaped magnets 13 on the two mounting bases to approach the spool 20 in the same direction and amplitude, achieving symmetrical braking control. This effectively avoids problems such as spool 20 wobbling, delayed braking response, or unstable operation caused by uneven braking force on one side, further improving the stability of the braking system and the coaxial accuracy of the spool 20, and enhancing the overall handling feel and service life of the fishing reel.

[0030] Preferably, the magnetic poles at both ends of the arc-shaped magnet 13 are opposite. In this application, an annular magnet is provided in the middle of the inner side of the side cover 10. The annular magnet is a multi-level magnet, and the annular conductor 22 of the spool 20 is disposed between the annular magnet and the floating magnet mounting base 11.

[0031] This invention provides a floating magnetic brake structure. Multiple floating magnet mounting seats 11 are arranged in a ring within the side cover 10 of the fishing reel, and guide strips 14 are provided on the floating magnet mounting seats 11. The two ends of the guide strips 14 are connected to the side cover 10 via elastic members, allowing the floating magnet mounting seats 11 to float within the side cover 10 by the extension or repositioning of the elastic members. During operation, as the rotation speed of the spool 20 increases, the annular conductor 22 on the spool 20 continuously cuts the static magnetic field of the arc-shaped magnet 13 on the floating magnet mounting seat 11, resulting in a significant increase in the rate of change of magnetic flux through the annular conductor 22. According to Faraday's law of electromagnetic induction, this change induces strong eddy currents within the annular conductor. The induced magnetic field generated by these eddy currents is opposite in direction to the magnetic field polarity of the arc-shaped magnet 13, thus pushing the floating magnet mounting seats 11 to overcome the resistance of the elastic members and move towards the annular conductor 22, thereby reducing the distance between the arc-shaped magnet 13 and the annular conductor 22. Since the strength of the magnetic field is inversely proportional to the square of the distance, the braking force of the arc-shaped magnet 13 on the annular conductor 22 (i.e., the spool 20) increases, and the elastic element is stretched and stores elastic potential energy during this process. When the rotational speed of the spool 20 decreases, the rate of change of magnetic flux through the annular conductor decreases, resulting in a weakening of the induced eddy current intensity. The elastic potential energy of the elastic element is released and pulls the floating magnet mounting base 11 back to its original position. The distance between the arc-shaped magnet 13 and the annular conductor increases, and the braking force decreases synchronously. Therefore, this floating magnetic braking structure can automatically and sensitively adjust the braking force according to the speed of the spool 20 during casting, adjusting the balance between the line release speed and the lure movement speed, preventing the fishing line from piling up on the spool and causing it to become "stirred up," and also avoiding the problem of inconsistent braking force at different rotational speeds in traditional fixed magnet structures, thus improving the overall stability and controllability.

[0032] See Figures 1-5 This embodiment also provides a fishing reel, including a fishing reel body 30, a spool 20 for reeling in and out fishing line and capable of rotating relative to the fishing reel body 30, and a side cover 10, wherein the floating magnetic brake structure is installed inside the side cover 10.

[0033] Preferably, the fishing reel body 30 includes a main shaft 40, one end of which is disposed on the reel housing and the other end is disposed inside the spool 20. The spool 20 is rotatably connected to the main shaft 40 through a bearing assembly. At the same time, the transmission mechanism on the fishing reel body 30 forms a controllable transmission connection with the main shaft 40, which facilitates the power conversion and control of casting. The transmission mechanism includes a handle and a gear assembly connected to the handle. The gear assembly is drively connected to the main shaft 40.

[0034] More preferably, the spool 20 includes a spool body 21 and an annular conductor 22 disposed at the end of the spool body 21. The annular conductor 22 is made of a high magnetic permeability material, such as magnetically permeable stainless steel or nickel-iron alloy, to efficiently respond to changes in magnetic flux generated by the floating magnet. The annular conductor 22 is installed between the floating magnet mounting base 11 and the annular spindle 40 mounting base disposed in the middle of the side cover 10. The annular magnet is mounted on the outside of the annular spindle 40 mounting base, thereby forming a stable magnetic field interaction zone to generate a controllable electromagnetic damping effect.

[0035] Therefore, the fishing reel provided in this application, by integrating the aforementioned floating magnetic brake structure inside the side cover 10 of the reel, enables the reel to adaptively adjust the rotation speed of the spool 20 during use, eliminating the need for manual adjustment of the braking force by the user, and significantly improving the ease of operation and stability during casting. This fishing reel can achieve rapid and effective braking during high-speed casting, preventing the spool 20 from rotating too quickly and causing line breakage or tangling. Therefore, it is suitable for various types of fishing scenarios.

[0036] The above-disclosed embodiments are merely some preferred embodiments of the present utility model, and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model patent application shall still fall within the scope of the present utility model.

Claims

1. A floating magnetic brake structure, installed inside the side cover of a fishing reel, acting on the spool, characterized in that: It includes multiple floating magnet mounting seats arranged in a ring on the inner side of the side cover. Each floating magnet mounting seat has a mounting groove on the side facing the spool, and an arc-shaped magnet is placed in the mounting groove. Guide strips are provided on both sides of the floating magnet mounting seat. The guide strips are connected to the side cover by an elastic element so that the floating magnet mounting seat is floatingly installed inside the side cover.

2. The floating magnetic brake structure as described in claim 1, characterized in that, The elastic element is a torsion spring.

3. The floating magnetic brake structure as described in claim 2, characterized in that, An annular bracket is provided on the inner side of the side cover. The annular bracket has multiple arc-shaped mounting positions for mounting the floating magnet mounting base. Each side of the arc-shaped mounting position of the annular bracket has a mounting hole. The torsion spring is installed in the mounting hole, and one end of the torsion spring is sleeved on the guide strip.

4. The floating magnetic brake structure as described in claim 1, characterized in that, It also includes an arc-shaped cover plate, which is connected to the mounting hole of the annular card seat by screws.

5. The floating magnetic brake structure as described in claim 1, characterized in that, Two floating magnet mounting bases are provided, symmetrically arranged inside the side cover.

6. The floating magnetic brake structure as described in claim 1, characterized in that, The magnetic poles at both ends of the arc-shaped magnet are opposite.

7. A fishing reel, comprising a reel body, a spool for reeling in and out fishing line and capable of rotating relative to the reel body, and a side cover, characterized in that, The side cover is equipped with a floating magnetic brake structure as described in any one of claims 1 to 6.

8. The fishing reel as described in claim 7, characterized in that, The fishing reel body includes a main shaft, and the spool is sleeved on the main shaft and forms a transmission connection with the main shaft.

9. The fishing reel as described in claim 7, characterized in that, The spool includes a spool body and an annular conductor disposed at one end of the spool body. The annular conductor is installed between the floating magnet mounting base and an annular spindle mounting base disposed in the middle of the side cover.

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