Electric wire cup and control system thereof

Abstract

The utility model provides an electric wire cup and a control system thereof. The control system comprises a control unit, a switching unit, an energy storage unit, a residual electricity management unit and a monitoring unit. The monitoring unit is used for monitoring the state of the electric wire cup in the pay-off and take-up processes; the control unit selects a control mode for the electric wire cup according to a monitoring result of the monitoring unit and switches a charging and discharging mode of the energy storage unit for a driving circuit of the electric wire cup through the switching unit, and the control mode comprises an acceleration mode, a braking mode and a take-up mode; the residual electricity management unit is electrically connected with a driving circuit of the electric wire cup through a wiring terminal, and charges the energy storage unit from the driving circuit in a braking mode and a take-up mode. According to the technical scheme, energy generated by braking of the electric wire cup can be fully utilized, and the wire throwing distance can be effectively increased while wire explosion is prevented.

Description

Technical Field

[0001] The present application belongs to the technical field of fishing equipment and relates to electric spool control technology. Specifically, an electric spool and a control system thereof are provided. Background Art

[0002] Electric spools have been increasingly used in the field of fishing tackle. Generally, existing electric spools use the principle of electromagnetic induction to brake the spool in the second half of the casting process to avoid the problem of fishing line entanglement caused by the spool's rotation speed exceeding the forward movement speed of the fishhook during the casting process.

[0003] Although the above-mentioned electric spool with brake can effectively solve the problem of spool recoil and line explosion, in the first half of the casting process, the spool's own inertia causes it to generate a drag force on the fishing line opposite to the casting direction. If it cannot be quickly accelerated at this time, the drag force will significantly consume the kinetic energy of the fish hook, thereby shortening the final casting distance.

[0004] Therefore, the speed control of the electric spool should be carried out throughout the entire casting process, and the device for the electric spool acceleration function should be integrated into the existing circuit of the electric spool as much as possible to avoid adding an additional energy supply structure and causing an increase in the volume and weight of the spool. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, the first aspect of the present application provides an electric spool control system for controlling the acceleration, braking and line-reeling stroke of the electric spool, wherein the electric spool is used for winding a fishing line;

[0006] The control system includes a control unit, a switching unit, an energy storage unit, a residual power management unit and a monitoring unit;

[0007] The monitoring unit monitors the status of the electric spool during the process of paying out and taking up the line; the control unit selects a control mode for the electric spool according to the monitoring result of the monitoring unit and switches the charging and discharging mode of the drive circuit of the electric spool by the energy storage unit through the switching unit, wherein the control mode includes an acceleration mode, a braking mode and a take-up mode, wherein the rotation direction of the electric spool in the take-up mode is opposite to the rotation direction in the acceleration mode and the braking mode; the residual power management unit is electrically connected to the drive circuit of the electric spool through a wiring terminal, and when the voltage at the wiring terminal is less than a preset residual power charging voltage, the drive circuit charges the energy storage unit.

[0008] Furthermore, the first end of the energy storage unit is grounded; the first end of the switching unit is electrically connected to the second end of the energy storage unit, and the second end is electrically connected to the wiring terminal. The control end receives a mode signal sent by the control unit, and controls the current direction between the energy storage unit and the wiring terminal based on the mode signal and the voltage of the wiring terminal.

[0009] Furthermore, the switching unit includes a first transistor, a first resistor, a first PMOS transistor and a first diode; the base of the first transistor receives the mode signal, the emitter is grounded, and the collector is electrically connected to the first end of the first resistor; the second end of the first resistor is electrically connected to the first end of the switching unit; the G pole of the first PMOS transistor is electrically connected to the emitter of the first transistor, the S pole is electrically connected to the second end of the energy storage unit, and the D pole is electrically connected to the wiring terminal; the positive pole of the first diode is electrically connected to the wiring terminal, and the negative pole is electrically connected to the second end of the energy storage unit.

[0010] Furthermore, the surplus power management unit includes a switch module and a boost module; the first end of the switch module is electrically connected to the wiring terminal, and the second end is electrically connected to the input end of the boost module. The control end receives the switch signal sent by the control unit, and when the voltage at the wiring terminal is greater than the surplus power charging voltage, the wiring terminal and the input end of the boost module are connected, otherwise they are disconnected; the output end of the boost module is electrically connected to the second end of the energy storage unit, and the voltage of the input end is boosted to the surplus power charging voltage and then charged to the energy storage unit.

[0011] Preferably, the input end of the boost module is electrically connected to the second end of the switch module via a first inductor; the input end and the output end of the boost module are electrically connected via a first Schottky diode.

[0012] Preferably, the residual power management unit further includes a residual power storage capacitor, and the residual power storage capacitor is electrically connected between the second end of the switch module and the ground end.

[0013] Preferably, the residual power management unit also includes a control unit power supply module; the control unit power supply module includes a second diode, a second resistor, a second Schottky diode and a first capacitor; the positive pole of the second diode is grounded, the two ends of the second resistor are electrically connected to the negative pole of the second diode and the negative pole of the second Schottky diode respectively, and the positive pole of the second Schottky diode is electrically connected to the output end of the boost module; the first end of the first capacitor is grounded, and the second end is electrically connected to the negative pole of the second diode and connected to the power supply end of the control unit, for providing 3.3V power supply to the control unit.

[0014] Preferably, the residual power management unit further includes a second capacitor connected between the cathode of the second diode and the ground terminal.

[0015] Optionally, the electric spool has a coaxially arranged stator and rotor inside, and the stator and rotor are respectively provided with mutually cooperating magnetic cores and multiple groups of electromagnetic coils; the wiring terminals are respectively electrically connected to each group of electromagnetic coils, and the drive circuit generates a current to drive the rotor based on the voltage at the wiring terminals and generates an induced current through the rotation of the rotor.

[0016] Optionally, the control unit controls the acceleration torque and braking torque of the electric spool through a speed control signal.

[0017] Optionally, a level trigger signal, a speed signal, an acceleration signal, a posture signal and the voltage at the terminal.

[0018] A second aspect of the present application further provides an electric spool, comprising a frame, a spool accommodated in the frame, and a handle for rotating the spool. The spool is provided with a stator and a rotor coaxially rotatable therein, the stator being fixed relative to the frame, and the rotor being fixedly connected to an inner wall of the spool.

[0019] The electric spool also includes a drive circuit and the aforementioned electric spool control system; the drive circuit can cause the rotor to rotate relative to the stator under current drive and generate an induced current when the rotor rotates relative to the stator; the electric spool control system controls the acceleration and braking of the electric spool during the process of paying out and taking up the line.

[0020] The electric spool control system provided by the present application switches the driving circuit of the electric spool between acceleration mode and braking mode through a switching unit, providing additional driving force for the accelerated rotation of the spool during the initial line dragging stage of casting the line by the rod, thereby increasing the rotation speed of the spool as quickly as possible to enter the matching stage while consuming the forward kinetic energy of the fish hook as little as possible, thereby effectively increasing the distance the fish hook enters the water, and then using the spool braking to charge the energy storage unit as the energy source for the next acceleration; in addition, the voltage at the terminal at the end of the braking process and during the line reeling process is increased by the residual power management unit, so that it can further charge the energy storage unit, avoiding the waste of electricity during braking and line reeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the appearance of an electric spool provided according to an embodiment of the present application;

[0022] Figure 2 The figure shows the relationship between the tension and relative speed between the spool and the fishing line at various stages of casting when using an existing electric spool control strategy;

[0023] Figure 3The relationship between the tension and relative speed between the spool and the fishing line at each stage of casting when using the electric spool control strategy of the embodiment of the present application;

[0024] Figure 4 Schematic diagram of the architecture of an electric spool control system according to an embodiment of the present application;

[0025] Figure 5 Schematic diagram of the implementation principle of a control unit according to an embodiment of the present application;

[0026] Figure 6 Schematic diagram of the switching unit and the energy storage unit according to an embodiment of the present application;

[0027] Figure 7 is a circuit schematic diagram of a switching unit according to an embodiment of the present application;

[0028] Figure 8 is a circuit schematic diagram of a residual power management unit according to an embodiment of the present application;

[0029] Figure 9 This is a circuit schematic diagram of a control unit power supply module according to an embodiment of the present application;

[0030] Figure 10 4 is a circuit connection diagram of the second capacitor according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] Below, the present application is further described based on the preferred embodiments and with reference to the accompanying drawings. For ease of understanding, various components on the drawings are enlarged or reduced, but this practice is not intended to limit the scope of protection of the present application. In addition, in the description of the embodiments of the present application, if the terms "upper", "lower", "inside", "outside" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or are the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In the description of this application, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance. Their names may be different in the detailed description and claims of this application. Unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a communication between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0033] Figure 1 Schematic diagram of the appearance of the electric spool provided in some preferred embodiments of the present application, such as Figure 1 As shown, the electric spool includes a frame 10 that remains fixed relative to the fishing rod, and a spool 20 accommodated in the frame 10. The spool 20 is rotatably connected to the frame 10, and its outer circumference is used to wind the fishing line. In addition, the electric spool also includes a handle 30 that can manually rotate the spool 20 in the forward direction (i.e., releasing the line) or the reverse direction (i.e., reeling in the line). The handle 30 can rotate the handle 30 and the spool 20 at a specific speed ratio through a set of mutually cooperating gear sets, and the gear set can also achieve the connection or disengagement of the handle 30 and the spool 20 through various clutch mechanisms known to those skilled in the art. In addition, in some embodiments, the electric spool achieves uniform winding of the fishing line through a reciprocating fishing line guide mechanism. The above structure and its operation mode are well known to those skilled in the art and will not be described in detail here.

[0034] Furthermore, the interior of the spool 20 is coaxially provided with a magnetic core composed of a permanent magnet, a coil assembly composed of multiple sets of electromagnetic coils (not shown), and a drive circuit electrically connected to the coil assembly. One of the magnetic core or coil assembly (e.g., the magnetic core) serves as a stator and remains fixed relative to the frame, while the other (e.g., the coil assembly) serves as a rotor and is fixedly connected to the inner wall of the spool 20. When the spool 20 rotates relative to the frame 10, the electromagnetic coils generate an induced current by cutting through the magnetic field generated by the magnetic core. At this point, the stator-rotor assembly acts as a generator, converting rotational kinetic energy into electrical energy and outputting it through the terminals of the drive circuit, thereby producing a braking effect. When the electromagnetic coils receive external current from the terminals of the drive circuit, the rotor drives the spool to rotate through electromagnetic induction. At this point, the stator-rotor assembly acts as a motor, converting the external electrical energy into kinetic energy for the spool's rotation. Generally, whether the stator-rotor assembly is in a power generation state or a power consumption state depends on the comparison between the voltage at the terminals of the drive circuit and the induced voltage generated by the coils cutting through the magnetic field. The aforementioned stator-rotor and its drive circuit technology are well known to those skilled in the art and will not be elaborated on here.

[0035] Accelerating or braking the spool during the entire casting process is more conducive to increasing the casting time and distance than the existing control strategy of only braking the spool. The reasons are analyzed as follows.

[0036] Figure 2 The whole process of casting the line by using an existing electric spool with only a braking function is shown. Figure 2 As shown in the figure, according to the relationship between the tension and relative speed between the spool and the fishing line during the casting process, the entire casting process can be divided into the fishing line dragging stage, the matching stage, the spool recoil stage and the fishhook entering the water stage.

[0037] When the hook is in the water, the line is pulled back and the fish is reeling, and the line ...

[0038] The braking of the spool can effectively reduce the occurrence of "line explosion". However, the factors that affect the whole casting effect are not only in the second half of the casting process, such as Figure 2 As shown in the figure, in the initial stage of dragging the fishing line when casting, since the spool needs to be gradually accelerated by the forward movement of the fishhook, a large part of the kinetic energy of the fishhook when it is thrown out is consumed in dragging the spool, which will cause a great loss of its forward throwing energy, thereby greatly shortening the distance of the fishhook's final entry point into the water.

[0039] Figure 3 The schematic diagram shows the relationship between the spool and the fishing line at each stage of casting when using an improved electric spool control strategy. Figure 3It can be seen that if additional driving force is provided to the spool in the initial line dragging stage of casting the rod, the above-mentioned additional driving force can greatly reduce the dragging force of the fishing line required to accelerate the spool, thereby increasing the rotation speed of the spool as quickly as possible to enter the matching stage while consuming the forward kinetic energy of the hook as little as possible. At this time, since most of the kinetic energy of the hook is not consumed in driving the spool, the forward speed of the hook is correspondingly much higher than the case where no additional driving force is provided, that is, the speed when the spool and the hook enter the matching state is greatly improved, and the time when the spool and the hook and fishing line maintain the matching state will be greatly extended, thereby effectively increasing the distance the hook enters the water.

[0040] Therefore, if the spool can be controlled more specifically according to the interaction between the spool and the fishing line at different stages of the entire process of casting, so that it acts as a motor to accelerate the rotation of the spool in the initial stage of casting, and acts as a generator to consume the kinetic energy of the spool during the stage of spool recoil and fish hook entry into the water, it will be possible to effectively increase the casting distance while preventing line explosion.

[0041] In addition, since the spool itself is an accessory of the fishing rod, if an additional energy supply component for spool acceleration, such as a separate battery, is added, the volume and weight of the electric spool may increase significantly. At the same time, the electrical energy generated by the spool during the braking and reeling processes cannot be effectively utilized. Therefore, while controlling the acceleration and braking of the spool, consideration should also be given to achieving effective utilization of electrical energy through an integrated circuit structure as much as possible.

[0042] Based on the above considerations, this application proposes an electric spool control system for controlling the acceleration and braking of the above electric spool during the process of paying out and taking up the wire. Figure 4 FIG. 1 shows a schematic diagram of the architecture of the electric spool control system provided according to some preferred embodiments of the present application, as shown in FIG. Figure 4 As shown, the electric spool control system includes a control unit, a switching unit, an energy storage unit, a residual power management unit and a monitoring unit.

[0043] Among them, the monitoring unit monitors the status of the electric spool during the process of paying out and taking up the line; the control unit selects the control mode of the electric spool according to the monitoring results of the monitoring unit and switches the charging and discharging mode of the drive circuit of the electric spool by the energy storage unit through the switching unit. Specifically, the control mode includes acceleration mode, braking mode and taking-up mode, among which the rotation direction of the electric spool in the taking-up mode is opposite to the rotation direction in the acceleration mode and braking mode.

[0044] The residual power management unit is electrically connected to the driving circuit of the electric spool via a connection terminal, and when the voltage at the connection terminal is lower than a preset residual power charging voltage, the driving circuit charges the energy storage unit.

[0045] In the embodiment of the present application, the above-mentioned units and their peripheral circuits are placed on a circuit substrate, and the circuit substrate can be fixedly arranged in the frame of the electric spool and sealed.

[0046] Each unit will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] In some specific embodiments of the present application, the control unit may be implemented using various microprocessor (MCU) chips known to those skilled in the art. Figure 5 In a specific embodiment, the implementation principle diagram of the control unit is shown as follows: Figure 5 As shown, the core chip of the control unit is specifically a STM32L051X6 / 8, and its operating voltage is 3.3V. In some other embodiments, those skilled in the art can select a suitable MCU as the core chip of the control unit according to specific needs. Generally, the MCU chip has multiple IO ports to realize signal input and output.

[0048] like Figure 5 As shown, the chip STM32L051X6 / 8 has multiple IO ports to realize signal input and output, among which the output IO ports M1 to M6 are electrically connected to the M1 to M6 terminals of the drive circuit respectively, and the on and off of each electromagnetic coil is controlled by a PWM signal.

[0049] Furthermore, if Figure 5 As shown, IO01 to IO05 are used to input the monitoring results obtained by the monitoring unit into the control unit. The control unit determines whether the driving circuit needs to be charged or discharged based on the received detection results through the built-in program, and then outputs the corresponding mode signal to the switching unit.

[0050] The type of mode signal output by the control unit depends on the evaluation result of the judgment signal. In the embodiment of the present application, the types of monitoring results can be diverse. For example, the rotation speed signal of the spool can be obtained by a counter set in the frame of the electric spool, or the frequency of the on and off of the electromagnetic coils can be detected by a detection circuit connected to each electromagnetic coil to obtain the rotation speed signal of the spool. For example, by calculating the rate of change of the rotation speed, the signal of the rotation acceleration of the spool can be obtained. Obviously, the rotation acceleration can be further converted into information such as the torque of the spool and the corresponding fishing line tension. For example, the posture signal of the electric spool or fishing rod can be obtained by setting an accelerometer at a specific part of the electric spool or fishing rod. In addition, the combination of mechanical structure and circuit can also be used to achieve the acquisition of judgment signals. For example, an automatically pop-up mode switching button and a corresponding circuit can be set on the frame of the electric spool. When the user presses the mode switching button, its circuit is triggered and outputs a high-level signal (or a low-level signal) to the control unit. When the user removes his finger, the mode switching button automatically pops up, and its circuit outputs a low-level signal (or a high-level signal) to the control unit.

[0051] Furthermore, it was found that the induced electromotive force generated by the rotation of the spool during the process of casting and reeling in the line varies between 0V and 10V, and the level of the induced electromotive force is strongly correlated with the rotational speed of the spool. Therefore, in some preferred embodiments, the level of the induced electromotive force can also be used to judge the stage of casting and determine the timing of mode switching.

[0052] Specifically, in some preferred embodiments of the present application, the monitoring unit can monitor the voltage at the FA end. During the fishing line dragging stage, the driving circuit drives the spool to accelerate, causing the voltage at the FA end to rise rapidly. When it rises to a preset voltage value, it can be considered that the rotation speed of the spool has reached a sufficient level to enter the matching state. At this time, the voltage at the FA end can be continuously monitored, and the braking mode can be switched to in time to avoid the spool from entering the recoil stage prematurely due to continued acceleration. The above-mentioned voltage value for judging the timing of mode switching can be obtained by performing multiple casting tests on a specific spool and performing statistical analysis on the voltage at the FA end when the matching state is reached. In addition, the voltage signal at the FA end can be further combined with the aforementioned rotation speed signal, acceleration signal, etc. to make the judgment of the mode switching timing more accurate.

[0053] After receiving the above-mentioned various judgment signals, the control unit evaluates the current stage of the line casting through a pre-set evaluation program and outputs a corresponding mode signal. For example, when the judgment signal is a level trigger signal, if the control unit receives a level signal triggered by the user pressing the mode switch button, it will output a mode signal corresponding to the acceleration mode to the switching unit. When the mode switch button pops up, the control unit will receive the opposite level signal and output a mode signal corresponding to the braking mode to the switching unit. For another example, the control unit calculates the tension of the fishing line dragging the spool in real time through the continuously received acceleration signal, determines the stage of the line casting according to the size of the tension, and outputs the corresponding mode signal to the switching unit. For another example, the control unit can also evaluate the stage of the line casting according to the posture signal obtained by the acceleration sensor, and then output the corresponding mode signal to the switching unit.

[0054] like Figure 5 As shown, the above-mentioned mode signal is output to the switching unit through IO06. The transmission of signals of two states through the IO port is well known to those skilled in the art. For example, in some specific embodiments, the mode signal can be a high-level and low-level signal, with the high-level signal being the mode signal corresponding to the acceleration mode and the low-level signal being the mode signal corresponding to the braking mode, or vice versa, the low-level signal being the mode signal corresponding to the acceleration mode and the high-level signal being the mode signal corresponding to the braking mode.

[0055] Figure 6 FIG. 1 shows a schematic diagram of the principle of switching between the acceleration mode and the braking mode in a preferred embodiment, in which the switching unit and the energy storage unit cooperate to realize the switching between the acceleration mode and the braking mode. Figure 6 As shown, the energy storage unit is a large-capacity capacitor, a first end a1 of which is grounded, a second end a1 is electrically connected to the first end b1 of the switching unit, and a second end b2 of the switching unit is electrically connected to the connection terminal FA of the drive circuit. The control end c1 of the switching unit is used to receive a mode signal output by the control unit, and switch the switching unit between a charging mode and a discharging mode according to the mode signal. When the mode signal is an acceleration mode, the switching unit enters a charging mode, and a unidirectional circuit from the b1 end to the b2 end is turned on. The current can flow from the a2 end of the large-capacity capacitor to the FA end of the drive circuit to drive the spool to accelerate rotation; when the mode signal is a braking mode, the switching unit enters a discharge mode, and a unidirectional circuit from the b2 end to the b1 end is turned on. The current can flow from the FA end of the drive circuit to the a2 end of the large-capacity capacitor to charge the large-capacity capacitor.

[0056] Figure 7 A circuit diagram of a specific switching unit is shown, as Figure 7As shown, the switching unit is a circuit composed of multiple discrete components. Specifically, a unidirectional charging circuit is formed from the FA terminal through the first diode D7 to the positive electrode of the energy storage unit (i.e., the large-capacity capacitor C3-5 in the figure), and a unidirectional discharging circuit is formed from the positive electrode of the large-capacity capacitor C3-5 through the first PMOS transistor Q5 to the FA terminal. The S pole and D pole of the first PMOS transistor Q5 are respectively connected to the positive electrode of the large-capacity capacitor C3-5 and the FA terminal. The mode signal is transmitted to the base of the first NPN-type transistor Q4 through the IO06 port. The collector of the transistor is connected to the G pole of the first PMOS transistor Q5 and is connected to the positive electrode of the large-capacity capacitor C3-5 through the first resistor R40. The emitter of the transistor is grounded. In addition, a resistor R41 is connected in series between the base and emitter of the first transistor Q4. The mode signal received by the IO06 port can control the first transistor Q4 to switch between the on and off states, further control the switching of the G electrode level of the first PMOS transistor Q4, and switch the unidirectional discharge circuit between on and off. It should be known that Figure 7 The embodiment shown is only for illustrating a specific implementation method of the switching unit switching between the charging mode and the discharging mode based on the mode signal, but does not constitute a limitation to the present application. Those skilled in the art can select other discrete components or control chips to implement the switching unit based on the same technical concept.

[0057] Using the above-mentioned large-capacity capacitor and switching unit, as Figure 3 As shown, during the initial line-dragging phase of the rod casting process, the capacitor discharges to provide additional driving force for the spool. After the hook begins to decelerate, the braking of the spool charges the large-capacity capacitor. Once the large-capacity capacitor is fully charged, it can again provide driving force for the spool during the next line-dragging phase of the rod casting process. The above-mentioned control mechanism effectively converts the energy generated by the braking of the spool in the late stage of casting into energy to drive the spool in the early stage of the next cast. It does not require an additional power supply device and can achieve detailed control of the entire rod casting process. This greatly extends the time it takes for the spool and line to match each other, effectively increasing the casting distance while preventing "line explosion."

[0058] It should be noted that in the embodiments of the present application, the fact that the switching unit is in acceleration mode or braking mode does not necessarily mean that the switching unit will control the energy storage unit to discharge or charge the drive circuit. The charging and discharging is also affected by the voltage of the positive electrode of the large-capacity capacitor and the voltage at the FA terminal. For example, after the line is cast, the spool is in a stationary state. At this time, even if the switching unit is in braking mode, because the electromagnetic coil does not cut the magnetic field to generate induced current, the FA terminal cannot charge the large-capacity capacitor C3-5 through the first diode D7.

[0059] As mentioned above, while the energy storage unit can be charged during the spool braking process, the voltage at terminal FA gradually decreases as the spool speed decreases. When it drops to a level that no longer allows diode D7 to conduct, the energy storage unit remains in charging mode, but the charging process has concluded. To utilize the electrical energy generated at lower spool speeds, the voltage at terminal FA can be boosted when it is low, allowing the electrical energy generated at the end of the braking phase to be effectively utilized.

[0060] Furthermore, after completing a fishing trip, it is necessary to rotate the handle to rotate the spool in the opposite direction to reel in the line. In the embodiment of the present application, the above-mentioned mode is called the reeling mode. In this mode, since the spool is rotated by human power, an induced voltage will also be generated at the terminal FA. After measurement, the induced voltage at the FA terminal is generally less than 5V when reeling in the line. In order to ensure the charging effect of the energy storage unit, it is generally necessary to boost it.

[0061] In the present application, the energy storage unit is fully charged at the end of the above-mentioned braking mode and in the winding mode through the residual power management unit. Obviously, in the winding mode, the switching unit can be in the same state as the braking mode, that is, the control unit does not provide a separate mode signal for the winding mode, but outputs the same mode signal as the braking mode to the switching unit in this mode.

[0062] Figure 8 FIG. 4 shows a circuit diagram of a residual power management unit in some preferred embodiments, as shown in FIG. Figure 8 As shown, the core components of the residual power management unit are the second PMOS tube Q11 (i.e., the switching module) and the chip U9 (i.e., the boost module), wherein the first end (S pole) of the second PMOS tube Q11 is electrically connected to the terminal FA, the second end (D pole) is electrically connected to the Lx end (i.e., the input end) of the chip U9, and the control end (G pole) receives the switching signal sent by the control unit. At the same time, a resistor R14 is also connected in series between its S pole and G pole; the VSS end of the chip U9 is grounded, and the Vout end (i.e., the output end) is electrically connected to the second end of the energy storage unit, and the voltage of the Lx end (i.e., the input end) is boosted to the residual power charging voltage and then charged to the energy storage unit.

[0063] Among them, the control unit judges the FA terminal voltage monitored by the monitoring unit. When the voltage at the FA terminal is lower than the residual charge voltage, the S pole and the D pole are turned on through the switch signal. At this time, the FA terminal voltage is boosted to the residual charge voltage by the chip U9 to charge the large-capacity capacitor C3-5, thereby making full use of the low-voltage current at the end of the casting and manual reeling process; when the FA terminal voltage is greater than the residual charge voltage, at this time, either the voltage of the large-capacity capacitor C3-5 is higher and is in the early stage of discharging to the spool, or the spool reaches a high speed and can be directly charged to the large-capacity capacitor C3-5 through braking, so there is no need to boost the voltage through the residual charge management unit.

[0064] As mentioned above, the induced voltage at the FA terminal is generally less than 5V when winding. Therefore, in some preferred embodiments, the residual power charging voltage is set to 5V, thereby ensuring that the residual power management unit only performs a boost operation when the FA terminal voltage is less than 5V.

[0065] In some preferred embodiments, Figure 8 As shown, a first inductor L3 is connected between the Lx terminal of the chip U9 and the D pole of the second PMOS tube. In addition, a first Schottky diode U10 is connected between the Lx terminal and the Vout terminal of the chip U9 to play a rectifying role.

[0066] In some preferred embodiments, the residual power management unit also includes a residual power storage capacitor C10, which is connected between the D pole of the first PMOS tube Q11 and the ground terminal. After the S pole and the D pole of the first PMOS tube Q11 are disconnected, the residual power storage capacitor C10 can continue to charge the large-capacity capacitor C3-5 using its stored electricity.

[0067] In the embodiment of the present application, the control unit receives 3.3V power supply for normal operation. Since the residual power management unit can boost the residual power at the end of the braking control and during the winding process to 5V, the boosted power can be further used to power the control unit to avoid the increase in the volume and manufacturing cost of the spool caused by the additional power supply module. For this reason, in some preferred embodiments, the residual power management unit also includes a control unit power supply module. Figure 9 A specific circuit schematic diagram of a control unit power supply module is shown in FIG. Figure 9 As shown, the control unit power supply module includes a second diode D8, a second resistor R11, a second Schottky diode U4 and a first capacitor C5.

[0068] Specifically, the positive electrode of the second diode D8 is grounded, the two ends of the second resistor R11 are electrically connected to the negative electrode of the second diode D8 and the negative electrode of the second Schottky diode U4 respectively, and the positive electrode of the second Schottky diode U4 is electrically connected to the output end of the chip U9; the first end of the first capacitor C5 is grounded, and the second end is electrically connected to the negative electrode of the second diode D8 and connected to the power supply end of the control unit, for providing 3.3V power supply to the control unit.

[0069] Furthermore, in some preferred embodiments, Figure 10 As shown, the residual power management unit also includes a second capacitor C4, which is connected between the cathode of the second diode D8 and the ground terminal. The capacitor can be used as a power storage element. When the output terminal of the chip U9 has a voltage of 5V, it stores electricity and continuously supplies power to the power supply unit when the spool is in a stationary state (for example, after casting the line with a rod, or in a stationary state after reeling in the line).

[0070] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An electric spool control system for controlling the acceleration, braking, and line-reeling stroke of an electric spool used for winding fishing line, characterized in that: It includes a control unit, a switching unit, an energy storage unit, a residual power management unit and a monitoring unit; The monitoring unit monitors the status of the electric spool during the process of paying out and taking up the line; The control unit selects a control mode for the electric spool according to the monitoring result of the monitoring unit and switches the charging and discharging mode of the drive circuit of the electric spool by the energy storage unit through the switching unit, wherein the control mode includes an acceleration mode, a braking mode and a winding mode, wherein the rotation direction of the electric spool in the winding mode is opposite to the rotation direction in the acceleration mode and the braking mode; The residual power management unit is electrically connected to the driving circuit of the electric spool via a connection terminal. When the voltage at the connection terminal is lower than a preset residual power charging voltage, the driving circuit charges the energy storage unit.

2. The electric spool control system according to claim 1, characterized in that: The first end of the energy storage unit is grounded; The first end of the switching unit is electrically connected to the second end of the energy storage unit, and the second end is electrically connected to the wiring terminal. The control end receives a mode signal sent by the control unit and controls the current direction between the energy storage unit and the wiring terminal based on the mode signal and the voltage of the wiring terminal.

3. The electric spool control system according to claim 2, characterized in that: The switching unit includes a first transistor, a first resistor, a first PMOS transistor and a first diode; The base of the first transistor receives the mode signal, the emitter is grounded, and the collector is electrically connected to the first end of the first resistor; The second end of the first resistor is electrically connected to the first end of the switching unit; The G pole of the first PMOS tube is electrically connected to the emitter of the first transistor, the S pole is electrically connected to the second end of the energy storage unit, and the D pole is electrically connected to the connection terminal; The anode of the first diode is electrically connected to the connection terminal, and the cathode is electrically connected to the second end of the energy storage unit.

4. The electric spool control system according to claim 1, characterized in that: The surplus power management unit includes a switch module and a boost module; The first end of the switch module is electrically connected to the wiring terminal, and the second end is electrically connected to the input end of the boost module. The control end receives a switch signal sent by the control unit, and connects the wiring terminal to the input end of the boost module when the voltage at the wiring terminal is greater than the residual charge voltage, otherwise disconnects the wiring terminal. The output end of the boost module is electrically connected to the second end of the energy storage unit, and the voltage of the input end is boosted to the residual power charging voltage and then charged to the energy storage unit.

5. The electric spool control system according to claim 4, characterized in that: The input end of the boost module is electrically connected to the second end of the switch module via a first inductor; The input end and the output end of the boost module are electrically connected via a first Schottky diode.

6. The electric spool control system according to claim 1, characterized in that: The electric spool has a coaxially arranged stator and rotor inside, and the stator and rotor are respectively provided with a magnetic core and multiple sets of electromagnetic coils that cooperate with each other; The connection terminals are electrically connected to each group of electromagnetic coils respectively, and the drive circuit generates a current for driving the rotor based on the voltage at the connection terminals and generates an induced current through the rotation of the rotor.

7. The electric spool control system according to claim 1, characterized in that: The control unit controls the acceleration torque and braking torque of the electric spool through a speed control signal.

8. The electric spool control system according to claim 1, characterized in that: The monitoring results include at least one of the following data: Level trigger signal, speed signal, acceleration signal, attitude signal and voltage at the wiring terminal.

9. An electric spool comprising a frame, a spool housed within the frame, and a handle for rotating the spool. A stator and a rotor are disposed within the spool so as to coaxially rotate. The stator is fixed relative to the frame, and the rotor is fixedly connected to the inner wall of the spool. The invention is characterized in that: Also includes a drive circuit and the electric spool control system according to claim 1; The driving circuit is capable of causing the rotor to rotate relative to the stator under current driving and generating an induced current when the rotor rotates relative to the stator; The electric spool control system controls the acceleration and braking of the electric spool during the process of paying out and taking up the line.

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