Fishing reel electromagnetic brake device, fishing line and speed measuring mechanism

Abstract

The application relates to a fishing reel, fishing line and speed measuring mechanism, in particular to a fishing reel electromagnetic braking device and fishing line which reel in and release fishing line in the winding drum rotation mode. The fishing reel electromagnetic braking device comprises a braking mechanism with a braking coil and a magnetic braking piece, a guide ring speed measuring mechanism, a rotation detection mechanism and a controller. The braking effect stability is improved by comparing the difference between the real-time detection of the fishing reel line speed and the tangential speed of the fishing line released by the winding drum rotation, and controlling the winding drum braking force to realize closed-loop control. The fishing reel electromagnetic braking device can automatically correct the braking force, reduce the parameter setting complexity and automatically set the storage parameters. In addition, the application also provides a speed measuring fishing line and speed measuring mechanism for realizing the above functions.

Description

Technical Field

[0001] The present application relates to a fishing reel and a fishing line, and in particular to an electromagnetic braking device for a fishing reel that reels in and releases the fishing line by rotating a winding drum, and the fishing line. Background Art

[0002] When a fishing reel casts bait, the bait flies due to inertia, and the fishing line is pulled out of the reel outlet, driving the reel to rotate and release the line. The speed of the bait's flight is attenuated by air resistance and friction with the fishing line. When the speed at which the reel releases the fishing line due to inertial rotation is greater than the speed at which the fishing line is pulled out of the reel outlet, part of the fishing line is retained inside the reel, forming a floating line, which in turn causes the fishing line to become tangled. Therefore, fishing reels are provided with a device for braking and decelerating the reel to prevent the fishing line from becoming tangled when casting bait. In existing fishing reel electromagnetic brake devices, when the reel rotates and releases the line, a magnetic rotor (or rotor coil) that rotates integrally with the reel rotates relative to a stator coil (or magnetic stator) provided on the reel body. The induced current in the stator coil (or rotor coil) is controlled by preset parameters and programs, causing the reel to be braked and decelerated (see Patent Documents 1 and 2).

[0003] Patent document 1: Authorization announcement number CN1965645B.

[0004] Patent document 2: Application publication number CN110432236A.

[0005] Since the wind force, bait, and fishing line often change in actual fishing scenarios, the attenuation law of the line-out speed of the fishing line being pulled out of the fishing reel during the bait casting process is subject to interference from complex factors and is uncertain. The existing electromagnetic braking device of the fishing reel cannot dynamically monitor the matching status between the line-out speed and the speed at which the reel rotates to release the fishing line. It only performs open-loop control of the reel braking force according to pre-set programs and parameters, and cannot dynamically correct the reel speed that deviates from the appropriate value, resulting in unstable braking effect. When the braking force is insufficient, the reel speed is too fast, which can cause the fishing line to become entangled, while excessive braking force will consume additional kinetic energy of the bait and shorten the flight distance of the bait. In addition, the existing electromagnetic braking device of the fishing reel requires complex setting operations in advance to adapt to actual wind force, bait, fishing line, and other scenarios when fishing. Summary of the Invention

[0006] This application is completed in view of the above problems, and the following technical solutions are used to realize the function of automatically correcting the reel speed of the fishing reel electromagnetic brake device, reducing the complexity of parameter setting, and automatically setting the storage parameters.

[0007] A first aspect of the present application provides an electromagnetic brake device for a fishing reel, the fishing reel comprising a line guide ring and a spool for reeling and releasing a fishing line in a rotating manner, the electromagnetic brake device for the fishing reel comprising a brake mechanism, the brake mechanism comprising a brake coil and a magnetic brake member arranged in opposite directions, one of the magnetic brake member and the brake coil rotating integrally with the spool to form a rotor, and the other of the magnetic brake member and the brake coil being arranged on the fishing reel body to form a stator, when the fishing line is released, the magnetic brake member and the brake coil rotating relative to each other and interacting with each other to generate electromagnetic induction to brake the spool, the electromagnetic brake device for the fishing reel further comprising:

[0008] A guide ring speed measuring mechanism, which is a line speed sensor provided on the inner wall of the outlet line guide ring to detect the speed information of the fishing line passing through the outlet line guide ring;

[0009] a rotation detection mechanism, which is provided on the fishing reel body and includes a main speed sensor and a rotation direction detection device to detect the rotation information of the spool, wherein the rotation information includes rotation pulses and rotation direction information;

[0010] a controller, disposed on the fishing reel body, comprising a processor, a memory, a current control unit, and an I / O interface, wherein the controller is electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism via the I / O interface, the current control unit is electrically connected to the brake coil, and the memory records and stores parameters of a conversion relationship between the number of turns, rotational speed, and tangential speed of the fishing line wound on the spool;

[0011] When releasing the fishing line, the controller controls the braking force of the reel in the following manner to achieve closed-loop control:

[0012] The loop speed is calculated based on the speed information; the rotation direction, rotation speed and number of fishing line winding turns of the reel are calculated based on the rotation information, and the winding turns count value is stored in the memory; when the rotation direction of the reel is to pay out the line, the tangent speed is calculated based on the number of fishing line winding turns, rotation speed and the conversion relationship parameters of the reel, and a correction signal for correcting the reel speed is calculated based on the tangent speed and the loop speed at that time, and the electromagnetic induction current in the brake coil is controlled by the current control unit based on the correction signal.

[0013] The above technical solution dynamically detects the loop speed and tangent speed, adjusts the winding drum braking force through closed-loop control, corrects the winding drum speed, and can dynamically control the wire delivery speed and tangent speed to match.

[0014] Optionally, in the embodiment of the first aspect, the guide ring speed measuring mechanism detects the speed information and transmits it to the controller for processing, which is implemented in any one of the following ways:

[0015] The guide ring speed measuring mechanism further includes a projection light source and a photoelectric sensor, and uses a fishing line with color segments of different reflectivity having a fixed mark length. The projection light source illuminates the fishing line, and the photoelectric sensor converts the detected reflected light signal into an electric pulse signal, and the controller calculates the loop speed based on the electric pulse signal and the fixed mark length; or, the guide ring speed measuring mechanism further includes a projection light source and an image sensor, and the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at fixed time intervals, and the controller calculates the loop speed based on the distance the local image moves at the fixed time interval by performing a front-to-back comparison analysis on the local image; or, the guide ring speed measuring mechanism is a magnetic sensor, and uses a fishing line with magnetic marks having a fixed mark length. The magnetic sensor converts the detected magnetic signal into an electric pulse signal, and the controller calculates the loop speed based on the electric pulse signal and the fixed mark length.

[0016] Optionally, in the embodiment of the first aspect, the controller controls the electromagnetic induction current in the brake coil in any one of the following ways:

[0017] The current control unit is a switching element, and the correction signal controls the connection and disconnection of the switching element by switching on and off; or, the current control unit is a switching element, and the correction signal controls the connection and disconnection time ratio of the switching element by adjusting the duty cycle of the PWM signal; or, the current control unit is a current intensity adjustment element, and the correction signal adjusts the current intensity in the current intensity adjustment element by changing the strength.

[0018] Optionally, in the embodiment of the first aspect, the closed-loop control is implemented in any one of the following ways:

[0019] The loop speed is used as the input target control variable, and the tangent speed is used as the output controlled variable and feedback variable; or, the set allowable speed difference threshold is used as the input target control variable, and the difference between the tangent speed and the loop speed is used as the output controlled variable and feedback variable; or, the set allowable floating line length threshold is used as the input target control variable, and the floating line length is used as the output controlled variable and feedback variable; or, the set integral difference control value is used as the input target control variable, and the speed integral difference is used as the output controlled variable and feedback variable.

[0020] Optionally, in the embodiment of the first aspect, the information detected by the rotation direction detection device is sent to the controller for processing, which is implemented in any one of the following ways:

[0021] The rotation direction detection device is an auxiliary speed sensor provided on the fishing reel body, and the controller calculates the rotation direction of the spool according to the phase difference between the rotation pulse signals respectively generated by the auxiliary speed sensor and the main speed sensor; or, the rotation direction detection device is a state detection element provided on the fishing reel body, which detects the state of the fishing reel's reeling and releasing, and the controller determines the rotation direction of the spool according to the signal generated by the state detection element; or, the rotation direction detection device is implemented by a threshold comparison unit electrically connected to the controller, and the threshold comparison unit reads the absolute value of any one of the spool speed, tangential speed or loop speed, or the rate of change of any one of them, and determines the rotation direction of the spool according to whether the rotation direction detection device is detected. It is detected that the read parameters are greater than their respective corresponding preset thresholds, so as to judge whether the reel is in the line-releasing state; or, the rotation direction detection device is implemented by an acceleration sensor arranged on the fishing reel body, and the acceleration sensor is electrically connected to the controller, and judges whether the reel is in the line-releasing state based on whether the acceleration detected is greater than the preset acceleration threshold; or, in the case that the guide ring speed measuring mechanism has an aberration speed sensor, the rotation direction detection device is implemented by the aberration speed sensor, and the rotation direction of the reel is judged according to the moving direction of the fishing line detected by the aberration speed sensor; or, in the case that the main speed sensor also has the function of detecting the rotation direction, the rotation direction detection device is implemented by the main speed sensor.

[0022] Preferably, in the embodiment of the first aspect, the memory pre-stores conversion relationship parameters corresponding to various thickness specifications of fishing lines, and the conversion relationship parameters are selected and set in any one of the following ways:

[0023] The fishing reel body is provided with a selection button electrically connected to the controller, and the selection button is used to select and set the matching conversion relationship parameters; or the controller is provided with a wireless communication module, which can be used to select and set the matching conversion relationship parameters by an external setting terminal connected by wireless communication.

[0024] The above technical solution pre-stores the conversion relationship parameters corresponding to various thicknesses of fishing lines, which are selected and set when fishing. For the same reel, since only the thickness of the fishing line needs to be considered, the complexity of the setting operation is reduced.

[0025] Preferably, in the embodiment of the first aspect, the controller calculates and stores the conversion relationship parameters in any one of the following ways:

[0026] The sample data of one or more over-loop speeds, winding turns and rotation speeds of the spool when the fishing line is wound is calculated to form a data sample group, according to which the conversion relationship parameter is calculated, and the conversion relationship parameter is recorded and stored; or, the conversion ratio between the over-loop speed and the rotation speed corresponding to different winding turns when the fishing line is wound by the spool is calculated, a conversion relationship table is made for the series of winding turns and the conversion ratios corresponding thereto, and the conversion relationship table is recorded and stored, and when the fishing line is paid out, the conversion ratio corresponding to the winding turns is queried in the conversion relationship table, and the tangential speed is calculated according to the rotation speed of the spool and the conversion ratio.

[0027] The above technical solution avoids the need for complex setting operations during fishing, because the conversion relationship parameter is automatically calculated and stored when the fishing line is wound by the spool.

[0028] Preferably, in the first aspect embodiment, the controller determines whether to execute the processing step of calculating and storing the conversion relationship parameter when the fishing line is wound in any of the following ways:

[0029] The processing step is executed each time the fishing line is wound by the spool, or the fishing reel body is provided with a setting button electrically connected to the controller, and the setting button is used to control whether to execute the processing step, or the controller is provided with a wireless communication module wirelessly connected to an external operation terminal, and the controller can be controlled by the external operation terminal to determine whether to execute the processing step, or the processing step is executed when it is detected that the winding turn count value of the fishing line of the spool is lower than a turn threshold or the memory does not store the conversion relationship parameter.

[0030] The above technical solution can reduce the calculation load of the controller in some application scenarios and save power consumption by determining whether to execute the step of calculating and storing the conversion relationship parameter when the fishing line is wound.

[0031] Further, in the first aspect embodiment, the main rotation speed sensor is an optical sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor or an inductive sensor.

[0032] Further preferably, in the embodiment of the first aspect, at least one single coil in the brake coil also serves as a speed measuring coil, and the controller is electrically connected to the speed measuring coil; the electromagnetic sensor is realized by the speed measuring coil, and the controller is electrically connected to the speed measuring coil, and the rotor position signal is calculated according to the induced electromotive force signal generated in the speed measuring coil, and the rotation pulse signal is extracted with the rotor position signal; the inductive sensor is realized by the speed measuring coil, and the controller is electrically connected to the speed measuring coil, and the controller injects a high-frequency voltage signal into the speed measuring coil, detects the high-frequency current response caused by the salient pole and decouples the rotor position signal, and extracts the rotation pulse signal with the rotor position signal.

[0033] The above technical solution utilizes the single coil in the brake coil to also serve as a speed sensor, thereby reducing system complexity, improving system reliability, and saving manufacturing costs.

[0034] Further preferably, in the embodiment of the first aspect, the auxiliary speed sensor is a photoelectric sensor, a Hall sensor, an electromagnetic sensor, or an inductive sensor;

[0035] A second aspect embodiment of the present application provides a fishing line having a signal mark interval with a fixed mark length, wherein the signal mark can be detected by the guide ring speed measuring mechanism of the fishing reel including the guide ring speed measuring mechanism and converted into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the ring; the signal mark interval is formed by color segments with different reflectivity, and can be detected by the guide ring speed measuring mechanism including a projection light source and a photoelectric sensor and converted into the electric pulse signal.

[0036] An embodiment of the third aspect of the present application provides a fishing line, wherein the fishing line has a signal mark interval with a fixed mark length, and the signal mark can be detected by the guide ring speed measuring mechanism of the fishing reel including the guide ring speed measuring mechanism and converted into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the speed through the ring; magnetic material is attached to the fishing line, and the signal mark interval is formed by a recorded series of magnetic signals, which can be detected by the guide ring speed measuring mechanism including a magnetic sensor and converted into the electric pulse signal.

[0037] A fourth embodiment of the present application provides a fishing line having a magnetic material attached thereto, wherein the magnetic material is used to record a magnetic signal as in the third embodiment of the present application.

[0038] A fifth aspect of the present application provides a speed measuring mechanism, which is a linear speed sensor disposed on the inner wall of a line guide ring to detect speed information of a fishing line passing through the line guide ring, and is implemented in any of the following ways:

[0039] The speed measuring mechanism further comprises a light source and a photoelectric sensor, the light source irradiates the fishing line, the photoelectric sensor converts the detected reflected light signal into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the over-ring speed; or the speed measuring mechanism further comprises a light source and an image sensor, the light source irradiates the fishing line, the image sensor picks up local image information of the moving fishing line at a fixed time interval, the local image is analyzed and processed by comparison, and the distance moved by the local image at the fixed time interval is used to calculate the over-ring speed; or the speed measuring mechanism is a magnetic sensor, the fishing line is spaced by magnetic marks with a fixed mark length, the magnetic sensor converts the detected magnetic signal into an electric pulse signal, and the electric pulse signal and the fixed mark length are used to calculate the over-ring speed.

[0040] Preferably, in the fifth aspect, in the case where the speed measuring mechanism has a photoelectric sensor or an image sensor, the speed measuring mechanism further has a light escape notch arranged on the inner wall of the line outlet guide ring, and the detection direction of the line speed sensor is directly opposite to the light escape notch; in the case where the speed measuring mechanism is realized by a magnetic sensor, the magnetic sensor is a magnetic head protruding from the inner wall of the line outlet guide ring, and the speed measuring mechanism further has a positioning support arranged on the inner wall of the line outlet guide ring, which keeps the gap between the fishing line in the line outlet guide ring and the magnetic head at 0 or a stable working gap.

[0041] Compared with the prior art, the application has the following beneficial effects:

[0042] The application provides a fishing reel electromagnetic brake device capable of automatically correcting the rotation speed of a line winding drum. The brake device detects the line outlet speed of the fishing reel and the tangent speed of the fishing line released by the rotation of the line winding drum, controls the braking force according to the matching condition between the two, timely corrects the rotation speed deviation of the line winding drum, realizes closed-loop control, and thus improves the stability of braking. Further, the embodiments provided by the application also realize the functions of reducing the complexity of parameter setting and automatically setting and storing parameters. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 FIG. 1 is a perspective view of a fishing reel adopting an embodiment of the application.

[0044] Figure 2 FIG. 4 is an exploded view of the brake mechanism of the fishing reel of an embodiment.

[0045] Figure 3 FIG. 6 is a schematic diagram of the system composition of the electromagnetic brake device of the fishing reel of an embodiment.

[0046] Figure 4Schematic cross-section of a guide ring speed measuring mechanism according to an embodiment.

[0047] Figure 5 Schematic diagram of the detailed structure of the guide ring speed measuring mechanism in some embodiments.

[0048] Figure 6 Schematic cross-sectional view of the guide ring speed measuring mechanism in some other embodiments.

[0049] Figure 7 Schematic diagram of the left side panel and speed reflective marking of a reel according to one embodiment.

[0050] Figure 8 This is a schematic diagram of another way to detect the winding / releasing state in the rotation detection mechanism.

[0051] Figure 9 A flowchart of controller processing steps according to an embodiment.

[0052] Figure 10 Flowchart of controller processing steps for some embodiments.

[0053] Figure 11 1 is a closed-loop control block diagram of an embodiment.

[0054] Figure 12 FIG. 4 is a closed-loop control block diagram of some embodiments.

[0055] Figure 13 2 is a closed-loop control block diagram of some other embodiments.

[0056] Figure 14 Schematic diagram of recording the conversion relationship table of some embodiments.

[0057] Figure 15 A schematic diagram of a fishing line.

[0058] Figure 16 This is a schematic diagram of another type of fishing line.

[0059] Figure 17 Schematic diagram of the cross section of the light escape notch of the guide ring speed measuring mechanism in some embodiments.

[0060] Figure 18 Schematic cross-sectional view of the light escape notch at the end of the guide ring speed measuring mechanism in some embodiments.

[0061] Figure 19 Schematic diagram of the cross section of the positioning support of the guide ring speed measuring mechanism in some embodiments.

[0062] Description of reference numerals:

[0063] 100: fishing reel body, 200: winding drum, 300: clutch switch, 400: line guide ring, 500: reel handle;

[0064] 600: guide ring speed measuring mechanism, 700: rotation detection mechanism, 800: braking mechanism, 900: controller;

[0065] 201: Left side plate of the winding drum, 202: Winding drum shaft, 401: Light escape notch, 410: Positioning support, 601: Projection light source, 602: Light receiving unit, 603: First lens, 604: Second lens, 605: Third lens, 606: Beam splitter, 701: Speed ​​reflective mark, 702: Permanent magnet, 703: State detection element, 801: Brake coil, 802: Magnetic brake member, 803: Connecting component, 901: Processor, 902: I / O interface, 903: Current control unit, 904: RAM memory, 905: ROM memory, 906: Flash memory (FLASH ROM);

[0066] 911: Closed-loop control calculation module, 912: Loop speed calculation module, 913: Tangent speed calculation module, 914: ΔV calculation module, 915: Lf calculation module; 1000: Fishing line. DETAILED DESCRIPTION

[0067] The following further describes the embodiments of the present application. These descriptions are exemplary and are intended to enable those skilled in the art to implement the embodiments of the present application. They are not intended to limit the scope of protection of the present application. It should be noted that the embodiments of the present application and the features therein can be combined with each other unless there is a conflict.

[0068] This specification also does not describe content that is essential for actual implementation but irrelevant to understanding the present application, such as power supply, compiler instructions, specific processor operation process, and specific closed-loop control algorithms. These contents are all well-known technologies, and those skilled in the art should be familiar with various ways to apply these well-known technologies to the implementation of the present application based on this specification.

[0069] In the drawings, the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions.

[0070] In the description of this specification, "one embodiment" or "some embodiments" means that one or more embodiments of this specification include a particular feature, structure, or characteristic described in conjunction with the embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in other embodiments," etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized.

[0071] In addition, in the description of the embodiments of this specification, "plurality" refers to two or more than two, and the terms "include", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0072] The line guide ring involved in this application specifically refers to the line outlet component of the fishing reel, through which the output fishing line passes and is led out to the outside of the fishing reel. For example, the "wire gauge" or "line gauge" of a double-bearing fishing reel usually belongs to this type of component.

[0073] The loop speed V involved in this application specifically refers to the speed of the fishing line passing through the outlet guide ring 400 when the fishing line is reeled in or released, or equivalently understood as the length of the fishing line passing through the outlet guide ring 400 during a certain observation time period T; the tangent speed V involved in this application is t Specifically, it refers to the speed at which the fishing line is wound or released when the reel 200 rotates, or equivalently, it can be understood as the length of fishing line wound or released by the reel 200 during a certain period of time T. The rotation speed V involved in this application is r Specifically, it refers to the rotation speed of the winding drum 200, or equivalently understood as the number of rotations of the winding drum 200 in a certain observation time period T; the above-mentioned observation time period T can be a fixed absolute time length, such as 1 second, or it can be a relative reference time period, such as the rotation of the winding drum 200 by a certain angle as an observation time period T.

[0074] The controller involved in this application refers to a circuit device having a circuit substrate and electronic components and the software stored therein; the current control unit involved in this application specifically refers to an element or combination of elements that controls the on-off switching of current or the change of current intensity by an input signal; the electrical connection involved in this application specifically refers to: a circuit connection, or a connection method for transmitting electrical signals or electrical energy through a wireless connection.

[0075] like Figure 1 and Figure 2 As shown, a fishing reel according to an embodiment of the present application is used. The fishing reel comprises: a fishing reel body 100, a spool 200, a clutch switch 300, a line guide ring 400, and a line-reeling handle 500. The fishing reel further comprises a gear transmission mechanism and a clutch mechanism. When the fishing line is reeled, the clutch mechanism engages, and the line-reeling handle 500 drives the spool 200 to rotate via the gear transmission mechanism. When the clutch switch 300 is pressed, the clutch mechanism disengages, and the spool 200 is separated from the transmission mechanism. At this time, the spool 200 can rotate freely, entering the line-releasing state. The spool 200 has left and right side plates on both sides, and the spool 200 is fixed to the spool shaft 202 as a whole and linked (see FIG. 1 ). Figure 2 ), there are left and right covers on both sides of the fishing reel body 100. The above is the structural form that some fishing reels of the prior art usually have, and the fishing reels of this type of structure are also usually referred to as double-bearing fishing reels.

[0076] This application relates to the braking mechanism of an electromagnetic brake device for a fishing reel. Using electromagnetic induction to brake a rotating mechanism is a well-known technique. Specific applications include the related reel brake components disclosed in Chinese patent applications published as CN110432236A and CN1806540A, as well as the energy recovery systems used in some automobiles. To facilitate understanding of the embodiments of this application, a description of the conventional braking mechanism will be provided.

[0077] like Figure 2 As shown, the braking mechanism 800 includes a braking coil 801 and a magnetic braking component 802. The braking mechanism 800 brakes the reel 200 through electromagnetic induction during the process of releasing the fishing line; the magnetic braking component 802 is a magnetic rotor that rotates integrally with the reel 200, and the braking coil 801 is a stator coil arranged on the fishing reel body 100. The braking coil 801 and the magnetic braking component 802 are arranged opposite to each other, so that the braking coil 801 generates an induced current due to the rotation of the magnetic braking component 802.

[0078] A more specific example of a brake mechanism is as follows: Figure 2 As shown, the magnetic brake member 802 is composed of four permanent magnets, and the magnetic brake member 802 is installed on the spool shaft 202 via the connecting member 803 in a manner that it can rotate integrally with the spool shaft 202; the spool shaft 202 is installed on the spool 200 in a manner that it can rotate integrally with the spool 200; the multiple magnetic poles of the magnetic brake member 802 are arranged in rotational symmetry with the axis of the spool shaft 202 as the center; correspondingly, the brake coil 801 is composed of four single coils connected in series, and the brake coil 801 is fixed on the fishing reel body 100 via the circuit board of the controller 900; the brake coil 801 is arranged on the outer peripheral side of the magnetic brake member 802 facing the magnetic brake member 802, and is arranged concentrically with the axis of the spool shaft 202.

[0079] It can be understood that in some examples, the brake coil 801 can be set as a rotor and the magnetic brake component 802 can be set as a stator, without limitation; in some examples, the rotor can also be set on the side or other position of the winding drum 200, and correspondingly, the stator is set at the relative position of the rotor to form a power generation device, without limitation; in some examples, the number of permanent magnets used in the magnetic brake component 802 and the number of single coils used in the brake coil 801 can be one or more, without limitation; in some examples, the brake coil 801 can also adopt a combination of multiple single coils in parallel or a mixed combination of series and parallel, without limitation.

[0080] The embodiment of the present application differs from the prior art in that the control method of the current in the brake coil 801 is improved.

[0081] It can be understood that the structure shown in the embodiments of the present application does not constitute a specific limitation on the fishing reel or its braking device. In some embodiments of the present application, the fishing reel or its braking device can include more or fewer components than shown, or some components can be combined, or some components can be split, or different components can be arranged.

[0082] Embodiment One

[0083] As shown in the figure, the electromagnetic braking device of the fishing reel according to an embodiment of the present application includes, in addition to the braking mechanism 800 described above, a guide ring speed measuring mechanism 600, a rotation detection mechanism 700, and a controller 900. The details of each part are described as follows. Figure 3 (1) Guide ring speed measuring mechanism 600

[0084] In this embodiment, the guide ring speed measuring mechanism 600 is a linear velocity sensor. As shown in the figure, the linear velocity sensor is installed in an embedded manner on the inner wall of the line guide ring 400 to detect the speed information of the fishing line in the line guide ring and transmit the detected fishing line speed information to the controller 900.

[0085] Figure 4 It can be understood that the linear velocity sensor uses known technologies, such as commonly used grating sensors, magnetic grating sensors, and aberration speed measuring sensors, which can all achieve linear velocity or displacement detection.

[0086] The linear velocity sensor is installed in an embedded manner on the inner wall of the line guide ring 400, which can make the fishing line pass through the line guide ring 400 smoothly. The guide ring speed measuring mechanism 600 can also be installed in a non-embedded manner on the inner wall of the line guide ring 400, which can also detect the speed information of the fishing line, so no limitation is made.

[0087] Specifically, in this embodiment, the guide ring speed measuring mechanism 600 further includes a light source 601 and a light receiving part 602. The light source 601 is configured to emit light to the moving fishing line in the line guide ring 400, and the light receiving part 602 is configured to receive the reflected light signal of the fishing line. In some embodiments, the light source 601 and the light receiving part 602 can be separately arranged or combined into one body. More specifically, as shown in the figure, the light source 601, the light receiving part 602, and an optical element are combined. The light emitted by the light source 601 passes through a first lens 603, is reflected by a light splitter 606, and then passes through a third lens 605 to illuminate the fishing line. The reflected light of the fishing line passes through the third lens 605, the light splitter 606, and a second lens 604 to reach the light receiving part 602. As shown in the figure, the light source 601 and the light receiving part 602 are combined into one body.

[0088] Specifically, in this embodiment, the guide ring speed measuring mechanism 600 further includes a light source 601 and a light receiving part 602. The light source 601 is configured to emit light to the moving fishing line in the line guide ring 400, and the light receiving part 602 is configured to receive the reflected light signal of the fishing line. In some embodiments, the light source 601 and the light receiving part 602 can be separately arranged or combined into one body. More specifically, as shown in the figure, the light source 601, the light receiving part 602, and an optical element are combined. The light emitted by the light source 601 passes through a first lens 603, is reflected by a light splitter 606, and then passes through a third lens 605 to illuminate the fishing line. The reflected light of the fishing line passes through the third lens 605, the light splitter 606, and a second lens 604 to reach the light receiving part 602. As shown in the figure, the light source 601 and the light receiving part 602 are combined into one body. Figure 5 Figure 6 ​​Another optical path combination is shown, where light from a projection light source 601 passes through a first lens 603 to illuminate a fishing line, and the reflected light from the fishing line passes through a second lens 604 to reach a light receiving portion 602. Similar optical combinations are well known in the art and are not limited thereto.

[0089] In this embodiment, the light receiving part 602 is a photoelectric sensor, which uses a fishing line with color segments of different reflectivity and a fixed mark length L, and can convert the detected reflected light signal into an electrical pulse signal for calculating the loop speed V of the fishing line.

[0090] The fishing line used in this embodiment is as follows Figure 15 As shown, in some embodiments, the fixed mark length L is less than 0.85 meters; in some embodiments, the fixed mark length L is less than 0.3 meters; in some embodiments, the fixed mark length L is less than 0.1 meters; and in some embodiments, the fixed mark length L is less than 0.05 meters. It should be noted that the value of the fixed mark length L can be adapted to different application scenarios. The lower the value of the fixed mark length L, the higher the detection accuracy, and this is not limited to this.

[0091] It should be pointed out that it is a well-known technology to detect displacement or speed using the reflected light of a signal marker. For example, the widely used grating ruler and grating positioning mouse are specific applications.

[0092] (2) Rotation detection mechanism 700

[0093] In this embodiment, the rotation detection mechanism 700 includes a speed sensor and a rotation direction detection device to detect the rotation information of the reel 200, which includes information on the rotation pulse and the rotation direction; the rotation detection mechanism 700 is arranged on the fishing reel body 100, and transmits the detected rotation information to the controller 900.

[0094] Specifically, the rotation detection mechanism 700 includes: a main speed sensor for detecting the rotation speed, and an auxiliary speed sensor as a rotation direction detection device. The main speed sensor and the auxiliary speed sensor are both reflective photoelectric speed sensors, which are fixedly installed on the fishing reel body 100 via the circuit board of the controller 900. The detection directions of the two speed sensors point to the left side plate 201 of the winding drum, and the two speed sensors form a certain central angle with the rotation center of the winding drum 200 as the center. Figure 7As shown, N reflective speed markings 701 are positioned on the outside of the left side plate 201 of the spool, corresponding to the detection direction of the reflective photoelectric speed sensor. As the spool 200 rotates, the speed sensor emits light and detects the reflected light signals from the speed reflective markings 701, generating a rotation pulse signal. The phase difference between the rotation pulse signals generated by the auxiliary speed sensor and the main speed sensor is used to calculate the rotation direction of the spool 200.

[0095] The number of the above-mentioned speed reflective marks N=3. In some embodiments, the number of the speed reflective marks N can also be other natural numbers greater than 0, and there is no limitation on this. In some embodiments, there can be multiple auxiliary speed sensors and main speed sensors, and there is no limitation on this.

[0096] It should be pointed out that using sensors to detect rotation speed, rotation count and rotation direction is a well-known technology. In some embodiments, the above-mentioned reflective photoelectric rotation speed sensor can also be replaced by other well-known components such as other photoelectric detection devices, Hall sensors, proximity switches, contact switches, etc., which are set at a position on the fishing reel body 100 to detect the rotation information of the winding drum 200 to achieve the same function.

[0097] (3) Controller 900

[0098] In this embodiment, the circuit board of the controller 900 is arranged on the inner side of the left cover of the fishing reel. Figure 3 As shown, the controller 900 specifically includes: a processor 901, a memory, an I / O interface 902, and a current control unit 903. The memory includes a RAM memory 904, a ROM memory 905, and a flash memory (FLASH ROM) 906. The controller 900 is electrically connected to the guide ring speed measurement mechanism 600 and the rotation detection mechanism 700 through the I / O interface 902, and the current control unit 903 is electrically connected to the brake coil 801.

[0099] In some embodiments, the controller 900 may also be set at other suitable positions in the main body of the fishing reel 1, without limitation; in some embodiments, the above-mentioned RAM memory 904, ROM memory 905, and flash memory (FLASH ROM) 906 may also be replaced by other well-known storage devices with similar functions, such as: using flash memory (FLASH ROM) instead of ROM, and using SRAM instead of DRAM, without limitation.

[0100] The controller 900 is provided with a loop speed calculation module 912, which calculates the loop speed V based on the electrical pulse signal of the guide ring speed measuring mechanism 600 and the fixed mark length L of the fishing line used.

[0101] The controller 900 processes the rotation information from the rotation detection mechanism 700 as follows:

[0102] The rotation direction of the winding drum 200 is calculated based on the phase difference between the two rotation pulse signals generated by the auxiliary speed sensor and the main speed sensor of the rotation detection mechanism 700; the speed V of the winding drum 200 is calculated based on the electrical pulse signal of the main speed sensor. r According to one of the two rotation pulse signals above, the number of turns N of the fishing line wound on the reel 200 is counted. r , the number of winding turns N r The number of turns recorded is recorded in the flash memory (FLASH ROM) 906. Specifically, when the fishing line is reeled in, the number of turns recorded is increased by 1 / N according to each electric pulse signal. r =N r +1 / N, when the fishing line is released, the number of winding turns recorded is reduced by 1 / N according to each electric pulse signal, N r =N r -1 / N, where N is the number of the rotation speed reflective marks 701 in the rotation detection mechanism 700 .

[0103] The controller 900 sets the winding number N of the winding drum 200 to r , speed V r , tangential speed V t The corresponding conversion relationship parameters between the three are recorded and stored in the flash memory (FLASH ROM) 906.

[0104] Among them, the conversion relationship parameter specifically refers to the number of winding turns N r , speed V r To calculate the corresponding tangential velocity V t According to known mathematical and physical knowledge, the conversion parameters are related to the geometric dimensions of the spool 200 and the thickness of the fishing line used. Therefore, the conversion parameters can be set and stored in advance and can be expressed in the form of parameter values, regression models, numerical tables, or combinations thereof, without limitation.

[0105] A specific example: the original diameter of the reel 200 is recorded as "D", the thickness d of the fishing line wound on the reel 200 and the number of winding turns N r There is a fixed conversion coefficient K between them, that is, d = K*N r , tangential velocity V t , winding turns N r , speed V r The relationship between them is recorded as "Formula 1", that is: V t =π*(D+K*N r *2)*V r The above diameter D and coefficient K are the conversion parameters.

[0106] The controller 900 is provided with a tangential speed calculation module 913. When the fishing line is released, the tangential speed calculation module 913 calculates the tangential speed according to the number of winding turns N of the reel 200. r , speed V r and the conversion parameters stored in the memory to calculate the tangential speed V t A specific example:

[0107] Tangential speed V t =π*(D+K*N r *2)*V r .

[0108] The current control unit 903 is a switching element, and the correction signal controls the connection and disconnection of the switching element in an on-off switching manner. The switching element specifically refers to an element or a combination of elements that controls the current on and off by an input signal, such as a field effect transistor (FET), a switching transistor, a thyristor and other elements or a combination of elements, and there is no restriction on this.

[0109] The correction signal specifically refers to a signal for controlling the electromagnetic induction current of the brake coil 801 obtained by the following closed-loop control calculation.

[0110] (4) Closed-loop control

[0111] Closed loop control such as Figure 11 As shown, the controller 900 is provided with a closed-loop control calculation module 911, which uses the loop speed V calculated by the loop speed calculation module 912 as the dynamic input target control quantity, and the tangent speed V calculated by the tangent speed calculation module 913 as the dynamic input target control quantity. t As the output controlled quantity, the tangential speed V t As feedback, a correction signal for correcting the winding drum speed is calculated; this correction signal controls the current in the brake coil 801 via the current control unit 903, thereby controlling the braking force on the winding drum 200, and then correcting the speed of the winding drum 200, thereby controlling the tangential speed V in a closed loop. t Keep the speed V consistent during the loop.

[0112] A specific example of a simple closed-loop control mode, when the tangential speed V t When the tangential speed V is greater than the loop speed, the output correction signal turns on the current control unit 903, and the brake coil 801 generates a braking force on the winding drum 200 to decelerate it; when the tangential speed V t When it is less than or equal to the loop speed V, the output correction signal disconnects the current control unit 903, and the brake coil 801 cancels the braking force on the winding drum 200 to stop decelerating, thereby realizing closed-loop control.

[0113] Closed-loop control is a well-known technology. In some embodiments, those skilled in the art may adopt other different closed-loop control algorithms or a combination of multiple closed-loop control algorithms, such as: any one or more combinations of two-position control, proportional control, integral control, differential control, PID control and other algorithms, without limitation.

[0114] Since this embodiment dynamically detects the matching condition of the loop speed and the tangential speed, it automatically corrects the winding drum speed deviation to achieve closed-loop control, thereby improving the stability of the fishing reel braking.

[0115] [Other embodiments]

[0116] Based on the above embodiment 1, substitutions, changes or improvements are made to further provide the following embodiments.

[0117] (1) In some embodiments, the guide ring speed measuring mechanism 600 detects speed information and transmits it to the controller 900 for processing, which can be implemented in any of the following alternative ways:

[0118] Alternatively, the guide ring speed measurement mechanism 600 is specifically an aberration speed sensor, further comprising a projection light source 601 and a light receiving unit 602. The light receiving unit 602 is specifically an image sensor. Under the control of the controller 900, the image sensor picks up local image information reflected by the fishing line at fixed time intervals as the fishing line moves. Accordingly, the loop speed calculation module 912 processes the image information from the guide ring speed measurement mechanism 600, performs a before-and-after comparison analysis on the local images of the moving fishing line picked up at regular time intervals, and calculates the loop speed V based on the distance the local images move during the set time interval. In this way, speed measurement can be performed using ordinary fishing lines.

[0119] It should be pointed out that using image information to detect displacement or speed is a well-known technology. For example, the widely used laser mouse and the aberration speed sensor of TRANS-TEK of the United States are both applications of this well-known technology.

[0120] Another alternative is that the guide ring speed measuring mechanism 600 is a magnetic sensor, which uses a magnetic signal with a fixed mark length L to mark the fishing line at intervals, and the guide ring speed measuring mechanism 600 converts the detected magnetic signal into an electrical pulse signal; accordingly, the loop speed calculation module 912 calculates the loop speed V based on the electrical pulse signal of the guide ring speed measuring mechanism 600 and the fixed mark length L of the magnetically marked fishing line used.

[0121] It should be noted that using magnetic signal markers to detect displacement or speed is a well-known technology, for example, the widely used magnetic grating sensors and magnetic scales are one application.

[0122] like Figure 16As shown, the magnetic signal marker is specifically: a magnetic material is attached to the fishing line, and a series of magnetic signals are recorded at intervals of a fixed marker length L. The magnetic poles are arranged as follows Figure 16 As shown, the magnetic sensor can be a well-known magnetic head. In some embodiments, the magnetic sensor can be a well-known Hall effect sensor or other device with similar functions. In some embodiments, the fixed mark length L is less than 0.85 meters; in some embodiments, the fixed mark length L is less than 0.3 meters; in some embodiments, the fixed mark length L is less than 0.1 meters; and in some embodiments, the fixed mark length L is less than 0.05 meters. It should be noted that the value of the fixed mark length L can be adapted to different application scenarios. The lower the value of the fixed mark length L, the higher the detection accuracy, and this is not limited.

[0123] The manufacturing method of attaching magnetic materials to fishing lines can adopt well-known technologies. For example, magnetic tapes that record data, audio and video information are made by attaching magnetic materials to flexible substrates. Such methods can also be used to attach magnetic materials to fishing lines. For example, magnetic material powder can be mixed with liquid adhesive and coated or impregnated on fishing lines or raw silk for producing fishing lines, so that magnetic materials can be attached to fishing lines.

[0124] (2) In some embodiments, the electromagnetic induction current of the brake coil 801 in the controller is replaced by any of the following methods:

[0125] As an alternative, the current control unit 903 is specifically a switching element, which switches the electromagnetic induction current in the brake coil 801 on and off, and the correction signal controls the duration of the on and off of the switching element by adjusting the duty cycle of the PWM (pulse width modulation) signal.

[0126] In another alternative, the current control unit 903 is a current intensity adjustment element, and the correction signal adjusts the current intensity in the current intensity adjustment element in a manner of varying strength.

[0127] Among them, the current intensity adjustment element specifically refers to an element or element combination that controls the change of current intensity by an input signal, such as a field effect transistor, a transistor or other elements or a combination thereof working in the variable resistance area, or a circuit combination that realizes the function of a digital potentiometer (Digital Potentiometer), and there is no restriction on this.

[0128] (3) In some embodiments, the specific method of closed-loop control can be replaced by any of the following methods:

[0129] An alternative, such as Figure 12 As shown, calculate the tangential velocity V t The difference between the speed V and the loop speed ΔV=V t–V, the controller 900 is provided with a difference ΔV calculation module 914, which includes a loop speed calculation module 912 and a tangent speed calculation module 913, with a predetermined allowable speed difference threshold Vk as the input target control quantity and the above difference ΔV as the output controlled quantity and feedback quantity.

[0130] In some embodiments, the allowable speed difference threshold Vk ranges from -0.1 to 1.0 m / s; in other embodiments, the allowable speed difference threshold Vk ranges from -0.05 to 0.5 m / s; and in still other embodiments, the allowable speed difference threshold Vk ranges from 0 to 0.2 m / s. It should be noted that the value of the allowable speed difference threshold Vk can be adapted and set according to different application scenarios and is not limited thereto.

[0131] Another alternative, such as Figure 13 As shown, the controller 900 is provided with a floating line length Lf calculation module 915, which includes a loop speed calculation module 912 and a tangent speed calculation module 913, and calculates the integral of the above-mentioned difference ΔV with respect to the line-releasing time to obtain the floating line length Lf retained inside the fishing reel when the fishing line is released; a pre-set allowable floating line length threshold Lk is used as the input target control quantity, the above-mentioned floating line length Lf is used as the output controlled quantity, and the floating line length Lf is used as the feedback quantity.

[0132] The floating line length Lf refers to the length of the fishing line that has been released from the spool 200 but has not been pulled out of the line guide ring 400 and remains inside the fishing reel when the fishing line is released.

[0133] In some embodiments, the allowable floating line length threshold Lk ranges from 0 to 0.8 meters; in other embodiments, the allowable floating line length threshold Lk ranges from 0 to 0.5 meters; and in still other embodiments, the allowable floating line length threshold Lk ranges from 0.005 to 0.2 meters. It should be noted that the value of the allowable floating line length threshold Lk can be adapted to different application scenarios and is not limited thereto.

[0134] Maintaining the appropriate floating line length through closed-loop control can ensure that the fishing line is in a moderately relaxed state without tangling, and can also prevent the braking system from consuming the inertial kinetic energy of the bait, thereby increasing the flight distance of the bait.

[0135] Some other alternative implementations, for example, calculate the loop speed V for a time period T p The integral value S, and the calculation of the tangential velocity V t For this time period T p The integral value S t Calculate the difference between the two as the velocity integral difference ΔS=St –S, with the preset integral difference control value Sk as the input target control quantity, and the speed integral difference ΔS as the output controlled quantity and feedback quantity for closed-loop control. p ≥ the sampling period of closed-loop control, and T p ≤ Pay-off time, in addition T p The value may be a fixed value or a dynamic value. Specifically, the adaptation value may be determined by a person skilled in the art through a limited number of tests, and there is no limitation on this.

[0136] The above-mentioned equivalent transformation methods are easily conceivable by those skilled in the art, and the closed-loop control achieved by the above-mentioned methods does not deviate from the spirit and protection scope of the present application.

[0137] (IV) In some embodiments, the information detected by the rotation direction detection device of the rotation detection mechanism 700 is sent to the controller 900 for processing, which can be implemented in any of the following alternative ways:

[0138] An alternative approach, such as Figure 8 As shown, the rotation direction detection device is a state detection element 703, which is electrically connected to the controller 900 and is used to detect whether the rotation direction of the reel 200 is in the reeling or unreeling working state. Specifically, the state detection element 703 is a Hall switch element, which is arranged on the fishing reel body 100 below the clutch switch 300. At the same time, a permanent magnet 702 is arranged at the bottom of the clutch switch 300 button relative to the Hall switch state detection element 703 to detect the reeling and unreeling working state (the figure shows the unreeling state, and the dotted line shows the reeling state); accordingly, the controller 900 determines the rotation direction of the reel 200 based on the signal detected by the state detection element 703 of the rotation detection mechanism 700.

[0139] It should be pointed out that detecting the position or movement of mechanical parts and converting them into electrical signals is a well-known technology. In some embodiments, well-known contact switches, proximity switches and other switching elements can be set on the fishing reel body 100 to detect the position or movement of the mechanical parts of the fishing reel's line-winding and line-releasing status, so as to achieve the same function of detecting the line-retracting and line-releasing working status as the above-mentioned embodiments.

[0140] Alternatively, the rotation direction detection device is implemented by a threshold comparison unit. Since the reel 200 rotates at high speed when the bait is cast and rotates at low speed when the line is taken up, the threshold comparison unit reads the reel speed V r or tangential velocity V tThe absolute value of any one of the loop speed V and the corresponding preset threshold value is compared to determine the rotation direction of the reel 200; if the read absolute value is higher than the corresponding preset threshold value, it is determined that the bait casting and line releasing state has entered. Thereafter, when the continuous line-out process stops, the bait casting and line releasing state is terminated and switched to the line-reeling state; or, alternatively, since the reel speed V at the start of bait casting is r or tangential velocity V t Or the loop speed V has an instantaneous high rate of change. Therefore, it is also possible to determine whether the bait casting and line releasing state has been entered by detecting whether its rate of change is higher than its corresponding preset rate of change threshold.

[0141] The threshold value range of the rotation speed is between 5 rpm and 500 rpm in some embodiments, and between 50 rpm and 100 rpm in other embodiments; the tangential speed V t The threshold value of or the threshold value of the loop speed V in some embodiments is between 0.5 m / s and 50 m / s, and in other embodiments is between 5 m / s and 10 m / s; the preset threshold value of the above parameters or the preset threshold value of the above parameter change rate can be set according to different application scenarios, and can also be selected by technical personnel in this field through a limited number of tests to adapt the value, which is not limited to this.

[0142] The threshold comparison unit circuit is electrically connected to the controller 900 and can be disposed on the fishing reel body 100. Preferably, the threshold comparison unit circuit can also be integrated into the circuitry of the controller 900, without limitation. Using a threshold comparison method to detect rotational direction can reduce system complexity, improve reliability, and save manufacturing costs.

[0143] Alternatively, since the fishing rod and reel are swung when casting bait, the rotation direction detection device can be implemented by an acceleration sensor installed on the fishing reel body, electrically connected to the controller 900. When the detected acceleration exceeds a preset acceleration threshold, the bait casting and line release state is determined to have entered. Thereafter, when the continuous line release process is detected to have stopped, the bait casting and line release state is terminated and the line reeling state is switched to. The preset acceleration threshold can be set according to the specific application scenario, or a suitable value can be determined by those skilled in the art through a limited number of experiments, and this is not limited to this.

[0144] In addition, there is an alternative method. When the guide ring speed measuring mechanism 600 has an aberration speed sensor, the rotation direction detection device can be realized by the aberration speed sensor. The rotation direction of the reel 200 is judged according to the moving direction of the fishing line detected by the aberration speed sensor. The aberration speed sensor also serves as the rotation direction detection device to improve reliability.

[0145] In addition, there is an alternative way, in the case of the main rotation speed sensor adopted also has the function of detecting the rotation direction, can be realized by the main rotation speed sensor as a rotation direction detection device, to improve the reliability. The rotation speed sensor with the function of detecting the rotation direction, such as aberration speed sensor, rotary transformer or the way disclosed in patent document application number CN201821109629. X, etc., which is not limited.

[0146] (Five) In some embodiments, the controller 900 further processes and stores the conversion relationship parameters in the following way:

[0147] The conversion relationship parameters corresponding to each fishing line of different specifications are stored in the memory in advance, and a selection button is further provided on the fishing reel body 100 and electrically connected with the controller 900. During fishing, the matching conversion relationship parameters are selected by the selection button, or the controller 900 is further provided with a wireless communication module for wireless communication connection with an external setting terminal. During fishing, the matching conversion relationship parameters are selected by the external setting terminal.

[0148] Among them, the selection button specifically refers to: the knob with scale indication dial, by rotating to different positions to set different circuit parameters or set different line connection mode; And equivalent, in the way of button pressing and so on to realize the same function of the above-mentioned device, such as radio station selection knob or button of radio, gear selection knob or button of microwave oven or washing machine and similar devices. Among them, the wireless communication can be WIFI or Bluetooth, NFC and other modes. Among them, the external setting terminal can be smart phone APP, wireless remote controller, etc., which is not limited.

[0149] Because the commonly used fishing line parameters are stored in advance, the matching is selected during use, which further simplifies the complexity of setting parameters.

[0150] (Six) In some embodiments, the controller 900 further automatically calculates and stores the conversion relationship parameters in the following any way:

[0151] One processing method, because the cutting speed V t of the fishing line when the winding drum 200 winds the fishing line is equal to the ring passing speed V, a plurality of sample data including the ring passing speed V, the winding turns N r and the rotation speed V r calculated at different time points are taken to form a data sample group. Any two data samples in the data sample group are substituted into the above-mentioned example formula 1, that is, V t = π * (D + K * N r * 2) * V r, a set of linear equations with two variables can be obtained. At least one set of equations is used to solve for at least one pair of diameter D and coefficient K. Statistical processing is then performed to determine the mean of diameter D and coefficient K, which is then stored in memory. Collecting multiple data samples for calculation and statistically processing the results to obtain the mean can reduce detection errors.

[0152] In the above embodiment, diameter D is solved as an unknown parameter. Therefore, it can be used as the starting point for counting the number of winding turns when a certain amount of fishing line remains on the spool 200. If the bare spool diameter D is used as the starting point for counting the number of winding turns, since the bare spool diameter D is a fixed value, in some embodiments, this bare diameter can be used as a constant to replace the diameter D in the above embodiment to obtain a linear equation. Therefore, only one data sample is required to establish one equation to calculate the coefficient K.

[0153] Another processing method is to replace the above automatic calculation and storage of conversion parameters with the method of, when reeling in the fishing line, setting the tangential speed V t As the dependent variable, the number of winding turns N r , speed V r As the independent variable, a regression equation is established, taking multiple parameters including the loop speed V, the number of winding turns N measured at different time points. r , speed V r The sample data is used to form a data sample group, and regression analysis is performed. The regression model and parameters are stored in a read-write memory as conversion relationship parameters. When the fishing line is released, the tangential speed calculation module 913 calculates the number of winding turns N. r , speed V r Input regression model to calculate tangential velocity V t .

[0154] There is another way to deal with it. The above automatic calculation and storage of conversion parameters is replaced by calculating the number of winding turns N when winding the fishing line. r The corresponding tangential velocity V t With speed V r The conversion ratio r, such as r = V t / V r ,like Figure 14 As shown, the winding number N r and the corresponding conversion ratio r series to make a conversion relationship table and store it in the memory; when the fishing line is released, the tangential speed calculation module 913 calculates the number of winding turns N according to the number of winding turns N. r Look up the corresponding ratio r in the above conversion table, and then calculate the value according to the speed V r Calculate the tangential velocity V t =r*V r .

[0155] Automatically calculate and store conversion parameters, thereby achieving precise braking control without pre-setting operations.

[0156] (7) Based on the above embodiment (6), in some embodiments, the controller 900 further determines whether to execute the processing step of calculating and storing the conversion relationship parameters when the reel reels the fishing line in any of the following ways:

[0157] In one embodiment, the above processing steps are automatically performed each time the reel reels in the fishing line;

[0158] Another judgment method is that the fishing reel body is provided with a setting button electrically connected to the controller, and the setting button is used to control whether the above-mentioned processing steps are executed; or the controller 900 is further provided with a wireless communication module that is wirelessly connected to an external operation terminal, and the external operation terminal is used to control whether the above-mentioned processing steps are executed; when a new fishing line is replaced or the conversion relationship parameters need to be refreshed, the operator sends a signal to the controller through the setting method to re-execute the above-mentioned processing steps. The external operation terminal can be a smartphone app, a wireless remote control, etc., without limitation.

[0159] There is another way to judge, when it is detected that the winding turn count value of the fishing line on the reel is lower than the turn threshold or the conversion relationship parameters are not stored, the above processing steps are executed. When a new fishing line is replaced or the fishing line needs to be rewound, the winding turn count value is lower than the turn threshold, and the above processing steps are executed at this time. In some embodiments, the turn threshold value range is 0 to 1200 turns, in some embodiments, the turn threshold value range is 0 to 300 turns, in some embodiments, the turn threshold value range is 0 to 50 turns, and in some embodiments, the turn threshold value range is 0 to 10 turns. It should be noted that the value of the turn threshold can be adapted and set according to different application scenarios, and there is no limitation on this.

[0160] (VIII) In some embodiments, the guide ring speed measuring mechanism 600 is further implemented in the following manner:

[0161] In the case where the linear velocity sensor has a photoelectric sensor or an image sensor, a light escape notch 401 is provided between the two ends or at the end of the outlet guide ring 400, and the detection direction of the linear velocity sensor faces the light escape notch 401. The light escape notch 401 can be an open hole penetrating the wall of the outlet guide ring, or a non-penetrating pit on the inner wall of the outlet guide ring. Figure 17 The figure shows a cross-sectional view of an open hole between the two ends of the outgoing wire guide ring. Figure 18The figure shows a schematic cross-sectional view of the recessed groove at the end of the outlet guide ring. The light-escape notch 401 is designed to reduce light reflection from the background of the fishing line being detected, thereby reducing interference from light reflected from the inner wall of the outlet guide ring 400 on the fishing line signal picked up by the light receiving unit 602, thereby improving the stability of the fishing line signal picked up by the light receiving unit 602. Based on this principle, those skilled in the art can implement light-escape notches in a variety of different locations, shapes, or structures.

[0162] In the case where the linear velocity sensor is implemented by a magnetic sensor, it is a magnetic head 610 protruding from the inner wall of the outlet guide ring 400, and a positioning support 410 is provided in the outlet guide ring. The positioning support 410 maintains the gap between the fishing line in the outlet guide ring and the magnetic head 610 to 0 or maintains a stable working gap. In some embodiments, the specific selection range of the working gap value is between 0 and 2 mm. The working gap value can be adapted and set according to different application scenarios. Those skilled in the art can also determine the appropriate value through a limited number of tests, and there is no restriction on this. At least one positioning support 410 is provided, and it can be implemented in a variety of ways. For example, it can be formed by a raised portion of the inner wall of the outlet guide ring 400, or it can be formed by a support that can block the fishing line from moving away from the magnetic head 610 and fixed in the outlet guide ring 400, and there is no restriction on this. A specific positioning support such as Figure 19 As shown, positioning support 410 is provided to cooperate with magnetic head 610 protruding from the inner wall of line guide ring 400 to maintain the gap between the fishing line and magnetic head 610 at zero or a stable working gap, thereby improving the stability of magnetic signal reading by magnetic head 610. Based on this principle, those skilled in the art can implement positioning supports in various positions, shapes, or structures.

[0163] (IX) In some preferred embodiments, the main speed sensor in the rotation detection mechanism can be implemented by a photoelectric sensor, a Hall effect sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor. Specifically, an electromagnetic sensor refers to a sensor that acquires a signal based on the induced electromotive force in a detection coil, and an inductive sensor refers to a sensor that acquires a signal based on changes in inductance or inductive reactance in a detection coil.

[0164] When the main speed sensor in the rotation detection mechanism is an electromagnetic sensor or an inductive sensor, at least one of the individual coils in the brake coil 801 can also serve as a speed measuring coil. The controller 900 is electrically connected to the speed measuring coil and calculates the rotor position signal of the winding drum based on the electrical signal containing rotor position information from the speed measuring coil. The rotation pulse signal is extracted based on the rotor position signal. This is achieved in the following manner:

[0165] When the main speed sensor is an electromagnetic sensor, the magnetic flux in the speed measuring coil changes when the rotor rotates at different positions, thereby generating an induced electromotive force. The rotor position signal of the winding drum is calculated based on the induced electromotive force signal generated in the speed measuring coil.

[0166] In the case where the main speed sensor is an inductive sensor, due to the salient pole effect, the inductance of the speed measuring coil will change when the rotor is in different rotational positions. The controller 900 injects a high-frequency voltage signal into the speed measuring coil, and the high-frequency current in the speed measuring coil will respond to the change in inductance. The high-frequency current response caused by the salient pole is detected and the rotor position signal is decoupled. In some embodiments, the high-frequency voltage can be selected in the range of 50mV to 2000mV, and the frequency of the high-frequency voltage can be selected between 100Hz and 50KHz. It should be noted that the above-mentioned voltage and frequency parameters select adaptive values ​​according to different application scenarios, or the technical personnel in this field select appropriate values ​​through a limited number of tests, and there is no limitation on this.

[0167] By using the above-mentioned electromagnetic sensor or inductive sensor detection method and using part or all of the individual coils of the brake coil as a speed sensor, system complexity can be reduced, reliability can be improved, and manufacturing costs can be saved.

[0168] Detecting the position signal of a motor rotor by measuring the induced electromotive force (EMF) or inductive impedance of the motor coil is a well-known detection technology. For example, it is widely used in tachogenerators, resolvers, and brushless motors to detect the rotor position. Specific methods include EMF detection and high-frequency injection. Detecting the motor rotor position signal and extracting information such as rotation pulses and speed based on this principle is well known to those skilled in the art.

[0169] In some preferred embodiments, when the auxiliary rotation speed sensor is used as the rotation direction detection device, the auxiliary rotation speed sensor can be implemented by a photoelectric sensor, a Hall sensor, an electromagnetic sensor, or an inductive sensor.

[0170] [Controller 900 processing flow chart]

[0171] like Figure 9 As shown, the controller 900 of some embodiments of the present application processes according to the following process:

[0172] First, when the work starts, the winding drum 200 rotates, and step S1a is executed to calculate the ring speed V based on the speed information of the guide ring speed measuring mechanism 600; at the same time, step S1b is executed to calculate the rotation speed V of the winding drum 200 based on the electrical pulse signal of the rotation detection mechanism 700. r; At the same time, step S1c is performed to detect the rotation direction of the winding drum 200;

[0173] After steps S1a, S1b, and S1c are executed in parallel, the process proceeds to step S2 to determine the rotation direction of the winding drum 200;

[0174] If the direction of rotation of the winding drum 200 is to take up the line, the process goes to step S3 and the number of winding turns N is accumulated in the memory. r Then enter step S4, by the winding number N r , speed V r , the loop speed V is obtained to obtain the conversion relationship parameters; then enter step S5, the above conversion relationship parameters are stored in the memory;

[0175] If the rotation direction of the winding drum 200 is determined to be unwinding in step S2, the process goes to step S6 and the number of winding turns N is decremented in the memory. r ;

[0176] Then enter step S7, according to the winding number N r , speed V r And the corresponding conversion parameters to calculate the tangential speed V t ;

[0177] Then enter step S8, the tangential velocity V t Compare with the loop speed V and calculate the correction signal;

[0178] Then, the process proceeds to step S9, where the current in the brake coil 801 is controlled according to the correction signal to control the braking force.

[0179] After step S5 or step S9 is completed, the process proceeds to step S10 to determine whether the winding drum 200 has stopped rotating.

[0180] If the winding drum 200 has not stopped rotating, the process re-enters the parallel steps S1a, S1b, and S1c to start the next control cycle; otherwise, if the winding drum 200 has stopped rotating, the process ends.

[0181] Processing flow charts of other embodiments:

[0182] like Figure 10 As shown, based on the above flowchart, step S3a is added between step S3 and step S4 to determine whether to calculate the conversion relationship parameter;

[0183] If the conversion relationship parameters need to be calculated, go to step S4;

[0184] If the conversion relationship parameter is not calculated, the process goes to step S10.

[0185] In some other embodiments, step S1a may be omitted when winding the fishing line, that is, there is no need to calculate the loop speed V when winding the fishing line, so as to reduce the workload of the processor and reduce energy consumption.

[0186] Of course, the steps and / or operations in the flowcharts and figures described in this specification are for illustrative purposes only. In addition to the above examples, many variations of these steps and / or operations are possible without departing from the spirit of this application. For example, the steps may be performed in a different order, or steps may be added, deleted, or modified, or the execution content in the blocks may be modified.

[0187] Obviously, the present application is not limited to the precise structures described above and shown in the drawings. The embodiments described above are only part of the embodiments of the present application, not all of the embodiments. On the contrary, the embodiments of the present application include all changes, modifications, substitutions, variations and equivalents that fall within the spirit and connotation of the appended claims, including but not limited to the following aspects:

[0188] (1) The calculation formulas involved are all for the case where the inner side of the side plate of the reel 200 is a flat surface. For the case where the inner side of the side plate of the reel 200 is a non-flat surface such as an inclined or curved surface, the same functional effect can be achieved by modifying the corresponding calculation formula according to known geometric knowledge. For example, in the embodiment where the inner side of the side plate of the reel 200 is a conical surface or a rotational curved surface, the surface width W of the fishing line winding body of any thickness is x is the distance between the left and right side plates, which has a known functional relationship with the diameter x of the fishing line winding body. x =f(x), this functional relationship is only related to the geometric characteristics of the generatrix of the conical surface or the rotational surface, and the area coefficient K occupied by the cross section of each turn of fishing line in the fishing line winding body s , winding turns N r The relationship between the original diameter D and the winding thickness d is recorded as "Formula 2", that is: At this time, the tangential velocity V t , original diameter D, winding thickness d, speed V r The relationship between them is recorded as "Formula 3", that is: V t =π*(D+d*2)*V r , coefficient K s The original diameter D is the conversion parameter. When the reel 200 is unwinding, the tangential speed V can be calculated according to formula 2 and formula 3. t In some embodiments, the reel 200 is wound according to the tangential speed V t , winding turns N r , speed V rThe sample data of the formula 2 and the formula 3 can be calculated by substituting the output coefficient K s and the diameter D, for the automatic storage conversion relationship parameter.

[0189] (2) The parameters and variables involved are only examples for illustrating the concept of the application. Those skilled in the art can equivalently transform them into other parameters and variables according to the known mathematics and physics knowledge, so as to realize the same function without departing from the scope of the application.

[0190] All the left, right, front and back directional descriptions involved in the embodiments of the application are taken as an example of the fishing reel on the right side of the operator's view angle. The fishing reel on the left side of the handle only needs to exchange the "left" and "right" in the embodiment description to realize the same function.

[0191] It should be understood that the functional modules, components, steps or schematic blocks disclosed in the embodiments of the application can be realized by hardware, software, firmware or their combination, and do not necessarily refer to specific hardware or software components that can be physically separated. Each functional unit can be integrated in one processing module, or each unit can be physically separated, or two or more units can be integrated in one module.

[0192] In the embodiments of the application, one or more components or steps can be realized by software or firmware stored in the memory and executed by a suitable instruction execution system. For example, in one embodiment, it is realized by hardware; and in another embodiment, the program in the memory can be executed by any one or their combination of the following technologies known in the art: discrete logic circuit with logic gate circuit for implementing logic function on data signal, special integrated circuit with suitable combination logic gate circuit, general-purpose processor (CPU), programmable gate array (PGA), field programmable gate array (FPGA) and the like.

[0193] It should be understood that the description of the embodiments of the application involves light sources that emit light or photoelectric conversion, which can be laser or ordinary light source, visible light or infrared light or ultraviolet light, which is not limited.

Claims

1. An electromagnetic brake device for a fishing reel, wherein the fishing reel comprises a fishing reel body, a line-out guide ring, and a spool for reeling and releasing the fishing line in a rotating manner, the electromagnetic brake device for the fishing reel comprising a brake mechanism, the brake mechanism comprising a brake coil and a magnetic brake member arranged opposite to each other, one of the magnetic brake member and the brake coil rotating integrally with the spool to form a rotor, and the other of the magnetic brake member and the brake coil rotating integrally with the spool to form a stator, and when the fishing line is released, the magnetic brake member and the brake coil rotate relative to each other and interact to generate electromagnetic induction to brake the spool, the electromagnetic brake device for the fishing reel is characterized in that another include: A guide ring speed measuring mechanism, which is a line speed sensor provided on the inner wall of the outlet line guide ring to detect the speed information of the fishing line passing through the outlet line guide ring; a rotation detection mechanism, which is provided on the fishing reel body and includes a main speed sensor and a rotation direction detection device to detect the rotation information of the spool, wherein the rotation information includes rotation pulses and rotation direction information; a controller, disposed on the fishing reel body, comprising a processor, a memory, a current control unit, and an I / O interface, wherein the controller is electrically connected to the guide ring speed measuring mechanism and the rotation detection mechanism via the I / O interface, the current control unit is electrically connected to the brake coil, and the memory records and stores parameters of a conversion relationship between the number of turns, rotational speed, and tangential speed of the fishing line wound on the spool; When releasing the fishing line, the controller controls the braking force of the reel in the following manner to achieve closed-loop control: Calculating the loop speed based on the speed information; calculating the rotation direction, rotation speed and fishing line winding turns count of the spool based on the rotation information, and storing the winding turns count value in the memory; When the spool is rotating in a direction of unwinding, a tangential speed is calculated based on the number of turns of the fishing line wound on the spool, the rotation speed, and the conversion relationship parameter; a correction signal for correcting the spool rotation speed is calculated based on the tangential speed and the current loop speed; and an electromagnetic induction current in the brake coil is controlled by the current control unit based on the correction signal; The guide ring speed measuring mechanism detects the speed information and sends it to the controller for processing, which is implemented in any of the following ways: The guide ring speed measuring mechanism further includes a projected light source and a photoelectric sensor. A fishing line having fixed mark lengths and spaced apart color segments of different reflectivity is used. The projected light source illuminates the fishing line. The photoelectric sensor converts the detected reflected light signal into an electrical pulse signal. The controller calculates the guide ring speed based on the electrical pulse signal and the fixed mark length. Alternatively, the guide ring speed measuring mechanism further includes a projection light source and an image sensor, wherein the projection light source illuminates the fishing line, and the image sensor picks up local image information of the moving fishing line at fixed time intervals, and the controller calculates the guide ring speed according to the distance the local image moves at the fixed time interval by performing a front-to-back comparison analysis on the local image; Alternatively, the guide ring speed measuring mechanism is a magnetic sensor, which uses a fishing line with magnetic marks having a fixed mark length. The magnetic sensor converts the detected magnetic signal into an electrical pulse signal, and the controller calculates the ring speed based on the electrical pulse signal and the fixed mark length.

2. The fishing reel electromagnetic brake device according to claim 1, characterized in that: The controller controls the electromagnetic induction current in the brake coil in any of the following ways: The current control unit is a switch element, and the correction signal controls the switching element to be turned on and off in an on-off switching manner; Alternatively, the current control unit is a switch element, and the correction signal controls the duration of on and off of the switch element by adjusting the duty cycle of a PWM signal; Alternatively, the current control unit is a current intensity regulating element, and the correction signal regulates the current intensity in the current intensity regulating element in a manner of varying strength.

3. The fishing reel electromagnetic brake device according to claim 1, wherein: The closed-loop control is implemented in any of the following ways: The loop speed is used as the input target control quantity, and the tangential speed is used as the output controlled quantity and feedback quantity; Alternatively, the set allowable speed difference threshold is used as the input target control variable, and the difference between the tangential speed and the loop speed is used as the output controlled variable and feedback variable; Alternatively, the set allowable floating line length threshold is used as the input target control variable, and the floating line length is used as the output controlled variable and feedback variable; Alternatively, the set integral difference control value is used as the input target control quantity, and the speed integral difference value is used as the output controlled quantity and feedback quantity.

4. The fishing reel electromagnetic brake device according to claim 1, wherein: The information detected by the rotation direction detection device is sent to the controller for processing, which is implemented in any of the following ways: The rotation direction detection device is an auxiliary rotation speed sensor provided on the fishing reel body, and the controller calculates the rotation direction of the spool based on the phase difference between the rotation pulse signals respectively generated by the auxiliary rotation speed sensor and the main rotation speed sensor; Alternatively, the rotation direction detection device is a state detection element provided on the fishing reel body, the state detection element detecting the state of the fishing reel in reeling and unreeling the line, and the controller determines the rotation direction of the spool according to the signal generated by the state detection element; Alternatively, the rotation direction detection device is implemented by a threshold comparison unit electrically connected to the controller, the threshold comparison unit reads the absolute value of any one of the winding drum rotation speed, the tangential speed, or the loop speed, or the rate of change of any one of them, and determines whether the winding drum is in the pay-out state based on whether it is detected that the read parameter is greater than the corresponding preset threshold value; Alternatively, the rotation direction detection device is implemented by an acceleration sensor provided on the fishing reel body, the acceleration sensor being electrically connected to the controller, and judging whether the spool is in the line-releasing state based on whether the detected acceleration is greater than a preset acceleration threshold; Alternatively, in the case where the guide ring speed measuring mechanism has an aberration speed sensor, the rotation direction detecting device is implemented by the aberration speed sensor, and the rotation direction of the spool is determined according to the moving direction of the fishing line detected by the aberration speed sensor; Alternatively, in the case where the main rotation speed sensor also has the function of detecting the rotation direction, the rotation direction detection device is implemented by the main rotation speed sensor.

5. The fishing reel electromagnetic brake device according to any one of claims 1 to 4, characterized in that: The memory pre-stores the conversion relationship parameters corresponding to various thickness specifications of fishing lines, and the conversion relationship parameters are selected and set in any of the following ways: The fishing reel body is provided with a selection button electrically connected to the controller, and the selection button is used to select and set the matching conversion relationship parameters; Alternatively, the controller is provided with a wireless communication module, and can be connected to an external setting terminal via wireless communication to select and set matching conversion relationship parameters.

6. The fishing reel electromagnetic brake device according to any one of claims 1 to 4, characterized in that: The controller calculates and stores the conversion relationship parameters in any of the following ways: Calculating one or more sample data of the loop speed, the number of winding turns, and the rotation speed when the reel reels in the fishing line to form a data sample group, calculating the conversion relationship parameter based on the sample data, and recording and storing the conversion relationship parameter; Alternatively, the conversion ratio between the loop speed and the rotational speed corresponding to different numbers of winding turns when the reel reels up the fishing line is calculated, a conversion relationship table is made for the series of winding turns and their corresponding conversion ratios, and the conversion relationship table is recorded and stored. When the fishing line is released, the matching conversion ratio is queried in the conversion relationship table according to the number of winding turns, and then the tangent speed is calculated according to the rotational speed of the reel and the conversion ratio.

7. The fishing reel electromagnetic brake device according to claim 6, characterized in that: The controller determines whether to execute the processing step of calculating and storing the conversion relationship parameters when reeling in the fishing line in any of the following ways: Each time the reel reels in the fishing line, the processing step is performed; Alternatively, the fishing reel body is provided with a setting button electrically connected to the controller, and the setting button controls whether to execute the processing step; Alternatively, the controller is provided with a wireless communication module for wireless communication connection with an external operation terminal, and can be controlled by the external operation terminal to determine whether to execute the processing step; Alternatively, the processing step is performed when it is detected that the fishing line winding turns count value of the spool is lower than the turns threshold value or the memory does not store the conversion relationship parameter.

8. The fishing reel electromagnetic brake device according to any one of claims 1 to 4, characterized in that: The main rotation speed sensor is a photoelectric sensor, a Hall sensor, an aberration speed sensor, an electromagnetic sensor, or an inductive sensor.

9. The fishing reel electromagnetic brake device according to claim 8, characterized in that: At least one single coil in the brake coil also serves as a speed measuring coil, and the controller is electrically connected to the speed measuring coil; The electromagnetic sensor is implemented by the speed measuring coil, and the controller is electrically connected to the speed measuring coil. The rotor position signal is calculated according to the induced electromotive force signal generated in the speed measuring coil, and the rotation pulse signal is extracted based on the rotor position signal. The inductive sensor is realized by the speed measuring coil, and the controller is electrically connected to the speed measuring coil. The controller injects a high-frequency voltage signal into the speed measuring coil, detects the high-frequency current response caused by the salient pole and decouples the rotor position signal, and extracts the rotation pulse signal using the rotor position signal.

10. The fishing reel electromagnetic brake device according to claim 4, wherein: The auxiliary rotation speed sensor is a photoelectric sensor, a Hall sensor, an electromagnetic sensor or an inductive sensor.

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