Water drop wheel with electromagnetic brake
By introducing an electromagnetic braking system into the baitcasting reel, the braking force is adjusted by using the induced current generated by the rotation of the spool. This solves the problems of complex operation and easy line breakage of existing baitcasting reels, and achieves simple adjustment and efficient braking control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI JITAI FINE WORKMANSHIP METAL MFG CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-19
AI Technical Summary
The existing magnetic braking system of baitcasting wheels is complicated to operate, difficult for beginners to adjust, prone to wire breakage, and has complex connections, making it inconvenient to control.
An electromagnetic braking system is adopted, which uses the rotation of the spool to drive the magnetic ring to cut the coil and generate an induced current. The braking force is adjusted by changing the circuit resistance by adjusting the rheostat, which simplifies the operation and avoids wire breakage.
It achieves simple operation, avoids the problem of line breakage when the spool rotates, improves the user experience for beginners, simplifies the adjustment process, and reduces the risk of damage.
Smart Images

Figure CN224368826U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of fishing reel equipment, and more specifically, relates to a baitcasting reel with electromagnetic brake. Background Technology
[0002] Bait reels are a type of horizontal reel primarily used for lure fishing. Compared to spinning reels, bait reels offer higher casting accuracy, are smaller, and provide easier line control. Their disadvantages include the difficulty in mastering casting and a higher risk of line tangling. Common bait reels are mainly divided into two types: magnetic brake reels and centrifugal brake reels. Magnetic brake reels are characterized by an external magnetic adjustment knob with multiple adjustable settings.
[0003] The existing baitcasting reels mainly have the following problems: the braking system is mainly based on magnetic braking. When casting, the adjustment knob controls the distance between the magnet and the spool to change the braking force and achieve a smooth casting of the baitcasting reel. This not only requires a high level of skill from the operator, but also makes it easy for novices to break the line when adjusting. In addition, the magnetic adjustment system is relatively complex to connect and inconvenient to control. Utility Model Content
[0004] This utility model addresses the technical problems existing in the prior art by providing a water droplet wheel with an electromagnetic brake.
[0005] The technical solution adopted in this application is: a water dropper wheel with electromagnetic brake, including a main frame, a spool, and a braking mechanism. The spool is rotatably disposed within the main frame. The braking mechanism includes a magnetic ring, a coil, and a control mechanism, with the coil disposed outside the magnetic ring. The control mechanism includes a rheostat, an adjustment seat, and an adjustment knob. The rheostat includes a resistive element and a sliding contact. The sliding contact is slidably disposed on the resistive element and communicates with it. The adjustment knob is rotatably disposed on the adjustment seat and is linked with the sliding contact. The rheostat and the coil are connected in series to form a closed circuit. The spool has a spool shaft, and the magnetic ring is fixedly disposed on the spool shaft.
[0006] Preferably, the control mechanism further includes a transmission pin, which is located between the adjustment knob and the sliding contact; the adjustment seat has an adjustment hole, the transmission pin is located in the adjustment hole and passes through the adjustment hole, both the transmission pin and the adjustment hole are in the shape of a circular step, and the diameter of the adjustment hole decreases from the inside to the outside.
[0007] Preferably, the control mechanism further includes a positioning plate, which is located at the inner end of the transmission pin and presses the transmission pin into the adjustment hole.
[0008] Preferably, the resistor is in the shape of a ring, and the sliding contact is rotatably located at the center of the resistor; the resistor has a first pin, a second pin, and a connecting part, the connecting part is located between the first pin and the second pin, and the connecting part is made of insulating material.
[0009] Preferably, the outer end of the sliding contact is provided with a slider, which abuts against the resistive body, and the width of the slider is greater than the width of the connection part.
[0010] Preferably, the braking mechanism further includes a sealing cover, which is annular in shape; the sealing cover is fitted over the magnetic ring, there is a gap between the sealing cover and the magnetic ring, and the coil is located inside the sealing cover.
[0011] Preferably, the braking mechanism also includes a circuit board, which is located inside a sealed cover; the rheostat is located on the circuit board.
[0012] Preferably, the sealing cover has a cover body and a cover, the side of the cover body has a cover opening, and the cover closes to the cover opening; the adjustment seat is provided on the cover.
[0013] Preferably, the main frame has a movable cover and a movable cover switch on its side; the adjustment knob is rotatably located on the movable cover, and adjustment parts are provided on both sides of the adjustment knob, with the adjustment parts extending outside the movable cover.
[0014] Preferably, the side of the spool is provided with a mounting groove and a spool cover, the spool cover is closed on the groove of the mounting groove, and the coil and magnetic ring are both located in the mounting groove.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] During casting, the spool rotates to release line, causing the magnetic ring to rotate. The magnetic field lines formed by the magnetic ring rotate, and the coil is located outside the magnetic ring. The magnetic field lines cut the coil, and the rheostat is connected to the coil to form a closed circuit. An induced current is generated in the circuit, which generates resistance to the rotation of the spool, preventing the line from breaking. The resistance value of the rheostat connected to the circuit can be adjusted by rotating the adjustment knob, which is easy to operate. Changing the resistance value of the rheostat connected to the circuit changes the total resistance in the closed circuit, and changes the magnitude of the induced current, which can adjust the magnitude of the resistance to the rotation of the spool.
[0017] The resistive element is circular, and the sliding contact is rotatably located at the center of the resistive element. When the sliding contact rotates and the slider is in contact with the connecting part, the width of the slider is greater than the width of the connecting part, which ensures that the coil can form a closed circuit. At this time, the adjustment knob can drive the sliding contact to rotate continuously and without restriction in the clockwise or counterclockwise direction. It does not need to rotate back and forth, so there is no need to set an angle limit, which increases the convenience of operation and avoids damage to the control mechanism due to excessive force. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of a teardrop wheel;
[0020] Figure 2 This is a schematic diagram of the spool and braking mechanism;
[0021] Figure 3 This is a schematic diagram of the spool and braking mechanism after the spool cover has been removed.
[0022] Figure 4 This is a schematic diagram of the spool and braking mechanism after the cover has been removed.
[0023] Figure 5 This is a schematic diagram of the internal structure of the braking mechanism;
[0024] Figure 6 This is a schematic diagram of the cover and drive pin;
[0025] Figure 7 This is a schematic diagram of the cover;
[0026] Figure 8 This is the schematic diagram of a variable resistor;
[0027] Figure 9 This is a schematic diagram of a rheostat whose sliding contact rotates to the connection part.
[0028] Figure 10 This is a schematic diagram illustrating the working principle of a rheostat and a coil.
[0029] Explanation of symbols in the diagram:
[0030] 1 is the main frame, 11 is the movable cover, and 12 is the movable cover switch;
[0031] 2 is the spool, 21 is the spool shaft, 22 is the mounting slot, and 23 is the spool cover;
[0032] 3 is the braking mechanism, 31 is the magnetic ring, 32 is the coil, 33 is the control mechanism, 331 is the rheostat, 3311 is the resistive element, 3312 is the sliding contact, 33121 is the slider, 3313 is the first pin, 3314 is the second pin, 3315 is the connecting part, 3316 is the third pin, 332 is the adjusting seat, 3321 is the adjusting hole, 333 is the adjusting knob, 3331 is the adjusting part, 334 is the transmission pin, 335 is the positioning plate, 34 is the sealing cover, 341 is the cover body, 342 is the cover, and 35 is the circuit board. Detailed Implementation
[0033] To make the technical problem to be solved, the technical solution, and the beneficial effects of this application clearer, the following describes in further detail a teardrop wheel with an electromagnetic brake provided by this application, in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.
[0034] Example
[0035] like Figures 1 to 10 As shown, this embodiment provides a water dropper wheel with an electromagnetic brake, including a main frame 1, a spool 2, and a braking mechanism 3. The spool 2 is rotatably disposed within the main frame 1. The braking mechanism 3 includes a magnetic ring 31, a coil 32, and a control mechanism 33. The coil 32 is disposed outside the magnetic ring 31. The control mechanism 33 is provided with a rheostat 331, an adjustment seat 332, and an adjustment knob 333. The rheostat 331 is provided with a resistive element 3311 and a sliding contact 3312. The sliding contact 3312 is slidably disposed on the resistive element 3311 and communicates with the resistive element 3311. The adjustment knob 333 is rotatably disposed on the adjustment seat 332 and is linked with the sliding contact 3312. The rheostat 331 and the coil 32 are connected in series to form a closed circuit. The spool 2 is provided with a spool shaft 21, and the magnetic ring 31 is fixedly disposed on the spool shaft 21.
[0036] During casting, the spool 2 rotates to release the line, causing the magnetic ring 31 to rotate. The magnetic field lines formed by the magnetic ring 31 rotate, and the coil 32 is located outside the magnetic ring 31. The magnetic field lines will cut the coil 32. The rheostat 331 is connected to the coil 32 to form a closed circuit. An induced current is generated in the circuit, which generates resistance to the rotation of the spool 2 and prevents the line from breaking. The resistance value of the rheostat 331 connected to the circuit can be adjusted by rotating the adjustment knob 332, which is convenient to operate. Changing the resistance value of the rheostat 331 connected to the circuit changes the total resistance in the closed circuit, and changes the magnitude of the induced current, which can adjust the magnitude of the resistance to the rotation of the spool 2.
[0037] The control mechanism 33 also includes a transmission pin 334, which is located between the adjustment knob 333 and the sliding contact 3312. The adjustment seat 332 is provided with an adjustment hole 3321, and the transmission pin 334 is located in and passes through the adjustment hole 3321. Both the transmission pin 334 and the adjustment hole 3321 are stepped, which can not only accurately control the position of the transmission pin 334, but also ensure that the transmission pin 334 can rotate smoothly. The diameter of the adjustment hole 3321 decreases from the inside to the outside.
[0038] The control mechanism 33 also includes a positioning piece 335, which is located at the inner end of the transmission pin 334 and presses the transmission pin 334 into the adjustment hole 3321.
[0039] The resistor 3311 is annular in shape, with high structural strength and is not easily damaged. A sliding contact 3312 is rotatably located at the center of the resistor 3311, and a third pin 3316 is located at the inner end of the sliding contact 3312. The resistor 3311 has a first pin 3313, a second pin 3314, and a connecting portion 3315. The connecting portion 3315 is located between the first pin 3313 and the second pin 3314 and is made of insulating material. In this embodiment, the third pin 3316 is connected to one end of the coil 32, and one of the first pin 3313 and the second pin 3314 is connected to the other end of the coil 32.
[0040] The outer end of the sliding contact 3312 is provided with a slider 33121, which abuts against the resistive element 3311. The width of the slider 33121 is greater than the width of the connecting part 3315. When the sliding contact 3312 rotates and the slider 33121 abuts against the connecting part 3315, the width of the slider 33121 is greater than the width of the connecting part 3315, which ensures that the coil 32 can form a closed circuit. At this time, the adjusting knob 333 can drive the sliding contact 3312 to rotate continuously and without restriction in a clockwise or counterclockwise direction. It does not need to rotate back and forth, so there is no need to set an angle limit, which increases the convenience of operation and avoids damage to the adjusting mechanism 33 due to excessive force.
[0041] The braking mechanism 3 also includes a sealing cover 34, which is an annular columnar shape. The sealing cover 34 is fitted outside the magnetic ring 31, and there is a gap between the sealing cover 34 and the magnetic ring 31 to ensure that the coil 32 can rotate smoothly with the spool 2. The coil 32 is located inside the sealing cover 34 to prevent short circuits due to water ingress and to prevent the coil 32 from rusting.
[0042] The braking mechanism 3 also includes a circuit board 35. The circuit components on the circuit board 35 cooperate with each other to precisely control the magnitude of the electromagnetic resistance output by the braking mechanism 3. The circuit board 35 is located inside the sealing cover 34, which can protect the circuit board 35. In this embodiment, the rheostat 331 is located on the circuit board 35.
[0043] The sealing cover 34 is provided with a cover body 341 and a cover 342. The side of the cover body 341 is provided with a cover opening, and the cover 342 covers the cover opening. The coil 32 and the circuit board 35 can be smoothly installed into the sealing cover 34 through the cover opening; the adjustment seat 332 is provided on the cover 342.
[0044] The main frame 1 has a movable cover 11 and a movable cover switch 12 on its side; the adjustment knob 333 is rotatably mounted on the movable cover 11, and the adjustment part 3331 is provided on both sides of the adjustment knob 333. The adjustment part 3331 extends outside the movable cover 11. By rubbing the adjustment part 3331 (the part of the adjustment knob 333 that is exposed), the angle of the adjustment knob 333 can be easily rotated.
[0045] The side of the spool 2 is provided with a mounting groove 22 and a spool cover 23. The spool cover 23 covers the opening of the mounting groove 22. The coil 32 and the magnetic ring 31 are both located in the mounting groove 22.
[0046] In the description of this utility model, it should be understood that terms such as “length”, “width”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0047] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.
[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A water dropper wheel with an electromagnetic brake, comprising a main frame, a spool, and a braking mechanism, wherein the spool is rotatably disposed within the main frame, characterized in that, The braking mechanism includes a magnetic ring, a coil, and an adjustment mechanism. The coil is disposed outside the magnetic ring. The adjustment mechanism includes a rheostat, an adjustment seat, and an adjustment knob. The rheostat has a resistive element and a sliding contact. The sliding contact is slidably disposed on the resistive element and communicates with it. The adjustment knob is rotatably disposed on the adjustment seat and is linked with the sliding contact. The rheostat is connected in series with the coil to form a closed circuit. The spool has a spool shaft, and the magnetic ring is fixedly disposed on the spool shaft.
2. A teardrop wheel with an electromagnetic brake according to claim 1, characterized in that, The control mechanism also includes a transmission pin, which is disposed between the adjustment knob and the sliding contact; the adjustment seat is provided with an adjustment hole, and the transmission pin is disposed in the adjustment hole and passes through the adjustment hole. Both the transmission pin and the adjustment hole are in the shape of a circular step, and the diameter of the adjustment hole decreases from the inside to the outside.
3. A teardrop wheel with an electromagnetic brake according to claim 2, characterized in that, The control mechanism also includes a positioning plate, which is disposed at the inner end of the transmission pin and presses the transmission pin into the adjustment hole.
4. A teardrop wheel with electromagnetic brake according to any one of claims 1 to 3, characterized in that, The resistor is ring-shaped, and the sliding contact is rotatably located at the center of the resistor. The resistor has a first pin, a second pin, and a connecting part. The connecting part is located between the first pin and the second pin and is made of insulating material.
5. A teardrop wheel with an electromagnetic brake according to claim 4, characterized in that, The outer end of the sliding contact is provided with a slider, which abuts against the resistive body, and the width of the slider is greater than the width including the connecting part.
6. A teardrop wheel with electromagnetic brake according to any one of claims 1 to 3, characterized in that, The braking mechanism also includes a sealing cover, which is an annular columnar shape; the sealing cover is fitted over the magnetic ring, and there is a gap between the sealing cover and the magnetic ring, and the coil is disposed inside the sealing cover.
7. A teardrop wheel with an electromagnetic brake according to claim 6, characterized in that, The braking mechanism also includes a circuit board, which is located inside the sealing cover; the rheostat is located on the circuit board.
8. A teardrop wheel with an electromagnetic brake according to claim 6, characterized in that, The sealing cover has a cover body and a cover cover. The side of the cover body has a cover opening, and the cover cover closes to the cover opening. The adjustment seat is located on the cover cover.
9. A teardrop wheel with electromagnetic brake according to any one of claims 1 to 3, characterized in that, The main frame has a movable cover and a movable cover switch on its side; the adjustment knob is rotatably mounted on the movable cover, and adjustment parts are provided on both sides of the adjustment knob, with the adjustment parts extending outside the movable cover.
10. A teardrop wheel with electromagnetic brake according to any one of claims 1 to 3, characterized in that, The spool has a mounting groove and a reel cover on its side. The reel cover covers the opening of the mounting groove, and the coil and the magnetic ring are both located in the mounting groove.