JP7114541B2 - Electric reel control device and electric reel - Google Patents

Description

The present disclosure relates to an electric reel for fishing and an electric reel control device provided in the electric reel.

2. Description of the Related Art Conventionally, an electric reel is provided with an electric reel control device that changes the voltage output to a motor that drives a spool on which a fishing line is wound according to the operation of a drive operation section.

JP 2016-7184 A (paragraph [0022], FIG. 1)

By the way, when a fish that is too heavy is caught, the amount of current flowing through the motor and the driving circuit for driving the motor increases, and the motor and the driving circuit may be damaged due to heat generation or the like. Therefore, there is a demand for an electric reel control device that can reduce the load on the motor and the motor drive circuit.

According to the first aspect of the invention, which has been made to solve the above-mentioned problems, a drive operation unit ( 17) In the electric reel control device (40) that changes according to the operation of 17), a first reference current value, a second reference current value larger than the first reference current value, a first reference time, and the first reference A reference data storage unit (52C) in which a second reference time shorter than the time is predetermined and stored; It is determined whether or not a first abnormality determination condition that the motor current is equal to or greater than a reference current value is met, and whether or not a second abnormality determination condition that the motor current is equal to or greater than the second reference current value continuously for the second reference time or longer is met. An abnormality determination unit (52) gradually decreases voltage output to the motor (12) and stops it when the first abnormality determination condition is satisfied, regardless of the operation of the drive operation unit (17). an abnormal stop control section (52) for interrupting the voltage output to the motor (12) and stopping the motor (12) independently of the operation of the drive operation section (17) when the second abnormality determination condition is satisfied; An electric reel control device (40).

According to the invention of claim 2, the motor-driven reel (10) connects a high-speed winding gear to the rotation output of the motor (12) when the output rotation direction of the motor (12) is in one rotation direction. On the other hand, a gear switching mechanism is provided for connecting a low-speed winding gear to the rotation output of the motor (12) when the output rotation direction of the motor (12) is the other rotation direction, and the motor (12) When the voltage output to the motor (12) is stopped by the abnormal stop control unit (52) with the high-speed winding gear connected to the rotation output of the motor (12), the voltage to the motor (12) 2. The electric reel control device (40) according to claim 1, further comprising a polarity switching circuit (54) for reversing the output polarity and switching the output rotation direction of the motor (12).

In the invention of claim 3, the abnormal stop control section (52) reduces the voltage output in advance when gradually decreasing the voltage output to the motor (12) when the first abnormality determination condition is satisfied. 3. The electric reel control device (40) according to claim 1 or 2, wherein when the voltage output falls below a predetermined reference voltage output, the voltage output is reduced faster than before.

The invention of claim 4 is an electric reel (10) comprising the electric reel control device (40) according to any one of claims 1 to 3.

In the electric reel control device (40) of claim 1 and the electric reel (10) of claim 4, the motor current flowing through the motor (12) continues for a predetermined reference time or more and is excessively greater than a predetermined reference current value. voltage output to the motor (12) is stopped irrespective of the operation of the drive operation unit (17) when the current reaches a high level, so that the motor (12) and the motor drive circuit (54) are overloaded. can be suppressed. Here, when the motor current continues to be equal to or higher than the first reference current value for the first reference time or longer, the voltage output to the motor (12) is gradually lowered and stopped. This prevents the tension of the fishing line (99) from dropping abruptly, and prevents the hook from coming off the fish and allowing the fish to escape (so-called fish release). Further, when the state in which the motor current is equal to or higher than the second reference current value, which is larger than the first reference current value, continues for the second reference time, the voltage output of the motor (12) is cut off. As a result, rather than gradually reducing the voltage output to the motor (12), it becomes possible to suppress excessive current flow in the motor (12) and the motor drive circuit (54). (54) can be reduced. Moreover, since the second reference time is shorter than the first reference time, the load on the motor (12) and the motor drive circuit (54) can be further reduced.

In the configuration of claim 2, even if the abnormal stop control unit (52) stops the voltage output to the motor (12) in the high-speed winding gear, the gear is switched to the low-speed winding gear and the motor (12) is stopped. The voltage output to the can be raised again. As a result, even heavy fish that could not be pulled up by the electric reel (10) when using the high-speed winding gear can be pulled up by the low-speed winding gear. When using the high-speed winding gear and when using the low-speed winding gear, the output rotation direction of the motor (12) may be the same or may be reversed.

In the configuration of claim 3, when the voltage output drops to the reference voltage output, the voltage output drops faster than before. This makes it possible to prevent damage to the motor drive circuit (54) due to heat generation caused by an increase in current flowing through the motor drive circuit (54) while the voltage output is lowered.

A perspective view of an electric reel according to one embodiment Perspective view of electric reel control device Electric reel circuit diagram Graph showing time change of DUTY ratio of voltage output to motor Graph showing time change of DUTY ratio of voltage output to motor Graph showing time change of DUTY ratio of voltage output to motor Drive control program flow chart Flowchart of Current Abnormality Judgment Processing

An electric reel 10 and an electric reel control device 40 according to an embodiment of the present disclosure will be described below with reference to FIGS. 1 to 8. FIG. The electric reel 10 of this embodiment shown in FIG. 1 has a spool 11 rotatably supported at both ends. and are connected through A clutch lever 14 for turning the clutch mechanism on and off is provided on the rear side of the spool 11 . Then, the clutch mechanism switches the spool 11 between a state in which the spool 11 is rotatable only in the winding direction in which the fishing line 99 is wound, and a state in which it is freely rotatable. Further, the rotation of the spool 11 in the winding direction can be performed by the motor 12 or the manual winding handle 13 . On the other hand, the rotation of the spool 11 in the delivery direction opposite to the winding direction is performed by pulling the fishing line 99 by a bait, weight or the like while the spool 11 is freely rotatable. In addition, by the clutch mechanism, the rotational output of the motor 12 in one direction is switched to a force in a different direction and transmitted to the spool 11, so that the rotation of the spool 11 in the delivery direction can be assisted by the motor 12. It has become.

A monitor 15 and a plurality of setting buttons 16 arranged side by side on the rear side are provided on the upper surface of the electric reel 10 . At the trailing edge of the upper surface of the electric reel 10, there is provided a drive operation section 17 used in an electric mode in which the motor 12 rotates the spool 11 in the winding direction.

The driving operation portion 17 is roller-shaped and is provided so as to be integrally rotatable with the central portion of a laterally extending shaft 17S. Both ends of the shaft 17S are supported by a pair of bearings (not shown), and the driving operation part 17 can rotate together with the shaft 17S, for example, within a range of less than one rotation. Further, the drive operation part 17 is easily rotatable, but is frictionally locked at an arbitrary position by, for example, a waterproof seal provided on a pair of bearings to the extent that it does not move due to vibration. Note that the drive operation unit 17 may be rotatably supported in a cantilevered state.

As shown in FIG. 3, a magnet 18 is attached to one end of the shaft 17S in order to detect the rotation of the drive operation portion 17. As shown in FIG. A magnetic sensor 19 provided in the electric reel control device 40 is arranged near the magnet 18 . Then, the magnetic sensor 19 outputs a detection signal corresponding to the rotational position of the driving operation section 17 .

A magnet (not shown) is also attached to the end of the spool 11, and the electric reel control device 40 is also provided with a magnetic sensor 19Z (see FIG. 2) for detecting the rotation of the spool 11.

FIG. 2 shows the electric reel control device 40 before it is assembled as part of the electric reel 10 . The electric reel control device 40 includes a circuit board (not shown) housed inside a waterproof case 41 made of transparent resin or the like. A liquid crystal module is mounted on the upper surface of the circuit board, and a part of the upper surface of the waterproof case 41 serves as the monitor 15 described above.

On the other hand, the plurality of setting buttons 16 described above are supported in a waterproof state in a plurality of through holes of the waterproof case 41, and are abutted against a plurality of press switches (not shown) mounted on the upper surface of the circuit board.

When the electric reel control device 40 is assembled as a part of the electric reel 10, as shown in FIG. covered by

As shown in FIG. 2, from both sides of the waterproof case 41, first to fourth cables 42A to 42D connected to the circuit board are drawn out sideways. The cable outlet of the waterproof case 41 is waterproofed.

The end of the first cable 42A is connected to a terminal 42E (see FIG. 3) of a power connector for connecting to a DC external power supply 59 (see FIG. 3). The end of the second cable 42B is connected to the motor 12 described above. The magnetic sensors 19, 19Z described above are connected to the ends of the third and fourth cables 42C, 42D.

FIG. 3 shows part of the circuit of the electric reel 10 including the electric reel control device 40. As shown in FIG. The electric reel control device 40 includes, for example, a power supply circuit 51 that receives power from an external power supply 59, an MCU (Micro Controller Unit) 52, an interface circuit 53 for taking in the detection signal of the magnetic sensor 19 into the MCU 52, and a motor 12. and a drive circuit 54 for.

The power supply circuit 51 receives power from an external power supply 59, transforms the power, and outputs a DC voltage to the MCU 52, the interface circuit 53, and the like.

The MCU 52 has a CPU, ROM, RAM, flash memory 52C, and A/D converter. The MCU 52 PWM-controls the output of the driving circuit 54 based on the detection signal obtained from the magnetic sensor 19 through the interface circuit 53 . The MCU 52 is also provided with a first timer and a second timer for respectively measuring a first reference time and a second reference time, which will be described later.

The motor 12 is a DC motor, and the drive circuit 54 is an H-bridge circuit for driving the DC motor in this embodiment. Specifically, the drive circuit 54 has a pair of input electrodes 54X1 and 54X2 and a pair of output electrodes 54Y1 and 54Y2, and a first switch connected in parallel between the pair of input electrodes 54X1 and 54X2. A circuit 55 and a second switch circuit 56 are provided. The first and second switch circuits 55 and 56 are both formed by connecting a pair of switch elements 57A and 57B in series. , 57B are a pair of output electrodes 54Y1 and 54Y2. The motor 12 is connected to the pair of output electrodes 54Y1 and 54Y2, and the DC voltage from the power supply circuit 51 is applied to the pair of input electrodes 54X1 and 54X2.

The switching elements 57A and 57B are turned on and off by the MCU52. Then, for example, the high-potential-side switch element 57A of the first switch circuit 55 and the low-potential-side switch element 57B of the second switch circuit 56 are maintained in the OFF state, and the remaining two switch elements 57A and 57B are simultaneously turned on. When turned on, the motor 12 is rotationally driven in one direction (hereinafter referred to as forward direction), and the spool 11 rotates in the winding direction. PWM control in which these two switch elements 57A and 57B are turned on and off by the MCU 52 changes the effective voltage applied to the motor 12 (changes the DUTY ratio). That is, in the present embodiment, the drive circuit 54 has switching elements 57A and 57B between a pair of input electrodes 54X1 and 54X2 connected to the power supply circuit 51 and a pair of output electrodes 54Y1 connected to the motor 12. , 54Y2, and outputs a voltage to the motor 12 from the pair of output electrodes 54Y1 and 54Y2.

In this embodiment, the drive circuit 54 can also rotate the motor 12 in the reverse direction opposite to the forward direction. That is, the drive circuit 54 can switch the polarity of voltage output to the motor 12 . Specifically, the low-potential-side switch element 57B of the first switch circuit 55 and the high-potential-side switch element 57A of the second switch circuit 56 are maintained in the OFF state, and the remaining two switch elements 57A and 57B are turned off. By being turned on at the same time, the motor 12 is driven to rotate in the opposite direction. Then, similar to the case where the motor 12 is rotationally driven in the forward direction, the PWM control in which these two switch elements 57A and 57B are turned on and off by the MCU 52 changes the effective voltage applied to the motor 12 (DUTY ratio is changed).

Here, in the present embodiment, the transmission gear for transmitting the power of the motor 12 to the spool 11 is switched by a gear switching mechanism (not shown) depending on whether the output rotation direction of the motor 12 is in the reverse direction or in the forward direction. , the spool 11 rotates in the winding direction even when the output rotation direction of the motor 12 is reversed. Further, the transmission ratio of the transmission gear differs depending on whether the output rotation direction of the motor 12 is forward or reverse. When the output rotation direction of the motor 12 is forward, the transmission gear for high-speed winding is connected to the rotation output of the motor 12 by the gear switching mechanism. A transmission gear for low-speed winding is connected to the rotational output of 12. When the electric reel 10 is powered on, the setting (gear setting for high-speed winding or low-speed winding) stored in the ROM (flash ROM) provided in the MCU 52 is adopted.

In the electric reel 10 of the present embodiment, when the drive operation portion 17 is arranged at one end of the rotation range, the voltage output from the drive circuit 54 to the motor 12 is stopped (when the DUTY ratio is 0%). Become). Then, as the drive operation unit 17 is rotated to the other side, the voltage output from the drive circuit 54 to the motor 12 increases (the DUTY ratio increases), and the drive operation unit 17 is arranged at the other end of the rotation range. Then, the DUTY ratio becomes 100%.

FIG. 4A shows, as an example, how the DUTY ratio of the voltage output to the motor 12 changes when the electric reel 10 is used for fishing. In the example shown in the figure, the motor current flowing through the motor 12 is less than the rated current.

As shown in FIG. 4(A), when a fish is caught on the hook, the angler using the electric reel 10 tends to increase the duty ratio of the voltage output to the motor 12 so as not to lose the pull of the fish. Then, the driving operation portion 17 is rotated to rotate the spool 11 in the winding direction. At this time, a load is applied to the motor 12 and the motor current increases (from time T0 to T1). After that, for example, the angler operates the drive operation unit 17 in accordance with the pull of the fish, thereby adjusting the DUTY ratio. Then, when the fishing line 99 finishes winding up, the driving operation part 17 is arranged at the other end of the rotation range, and the voltage output to the motor 12 is stopped (T2).

Here, in the present embodiment, if the state in which the motor current flowing through the motor 12 is equal to or higher than a predetermined reference current value equal to or higher than the rated current continues for a predetermined reference time, the motor is stopped regardless of the operation of the drive operation unit 17 . The voltage output to 12 is stopped (the DUTY ratio becomes 0%). Specifically, in this embodiment, as the reference current value, a first reference current value and a second reference current value larger than the first reference current value are provided. A first reference time and a second reference time shorter than the first reference time are provided as the reference times respectively corresponding to the first reference current value and the second reference current value. Then, when the motor current continues for the first reference time or longer and becomes equal to or higher than the first reference current value (when the first abnormality determination condition is satisfied), the duty ratio of the voltage output to the motor 12 gradually increases. to 0%. Further, when the motor current continues for the second reference time or longer and becomes equal to or higher than the second reference current value (when the second abnormality determination condition is satisfied), the duty ratio of the voltage output to the motor 12 is cut off. (ie the DUTY ratio is immediately set to 0%).

Note that the first and second reference current values and the first and second reference times are set in advance, for example, in a memory provided in the MCU 52 (a "reference data storage unit" described in the scope of claims). equivalent to ). This memory includes a flash memory 52C, a RAM, and the like. Also, in this embodiment, the first reference current value and the second reference current value are set to 40 A and 60 A, respectively, for example. Also, in the present embodiment, the first reference time and the second reference time are set to 0.1 seconds and 0.05 seconds, respectively, for example.

FIG. 5A shows an example when the first abnormality determination condition is satisfied. When a fish is caught on the hook, the angler using the electric reel 10 rotates the drive operation section 17 in the direction of increasing the duty ratio of the voltage output to the motor 12 so as not to lose the pull of the fish. (From time T0 to T1), the spool 11 is rotationally driven in the winding direction. When the fish is heavy, the drive operation unit 17 is operated until the DUTY ratio reaches 100%, for example. At this time, a load is applied to the motor 12, the motor current increases, and the motor current may exceed the first reference current value (for example, between T1 and T2). In this case, when the motor current is equal to or greater than the first reference current value and the first reference time elapses, the voltage to the motor 12 is applied regardless of the operation of the drive operation unit 17 (that is, forcibly) as described above. The output DUTY ratio is gradually lowered to 0% (from T2 to T3 in FIG. 5A). At this time, in this embodiment, when the DUTY ratio drops to a predetermined reference voltage output (for example, 20%), the DUTY ratio drops faster than before. This makes it possible to suppress breakage of the drive circuit 54 (especially the switch elements 57A and 57B) due to heat generation due to an increase in the current flowing through the drive circuit 54 while the DUTY ratio is lowered.

Further, when the second abnormality determination condition is met, that is, when the motor current is equal to or greater than the second reference value, which is larger than the first reference current value, and the second reference time has elapsed, the drive operation unit 17 is operated as described above. The voltage output to the motor 12 is cut off regardless of the operation of (the DUTY ratio becomes 0%, see FIG. 6A).

Note that the first or second abnormality determination condition may be satisfied before the DUTY ratio reaches 100%. As an example, FIG. 4B shows the case where the first abnormality determination condition is satisfied, and FIG. 4C shows the case where the second abnormality determination condition is satisfied.

Here, in the present embodiment, when the transmission gear for transmitting the power of the motor 12 to the spool 11 is in the state of the high-speed winding gear, when either the first abnormality determination condition or the second abnormality determination condition When the power output to the motor 12 is stopped, the transmission gear is switched from the high-speed winding gear to the low-speed winding gear by the gear switching mechanism. Then, after the first abnormality determination condition or the second abnormality determination condition is established, when a predetermined driving inhibition period (time from T3 to T4 in FIGS. 5A and 6A) elapses, the motor 12 until the voltage output (DUTY ratio) of is automatically the same as when the most recent first or second abnormality determination condition is satisfied (Fig. 5 (A) and Fig. 5 (A) and In the example of 6(A), it increases until the DUTY ratio reaches 100%). After the DUTY ratio becomes the same as when the first or second abnormality determination condition is satisfied (T5 in FIGS. 5A and 6A), when the drive operation unit 17 is operated, The drive circuit 54 is enabled to drive the motor 12 .

As shown in FIG. 5A, when the first abnormality determination condition is satisfied again after the first abnormality determination condition is satisfied and the voltage output to the motor 12 is stopped, the high-speed winding gear is used. , the duty ratio of the voltage output to the motor 12 is gradually lowered to 0%. Further, when the second abnormality determination condition is established, the voltage output to the motor 12 is cut off, and the DUTY ratio immediately becomes 0% (see FIG. 5B). When the motor current is less than the first reference current value and both the first and second abnormality determination conditions are not met, the duty ratio is irrelevant to the operation of the drive operation unit 17, as shown in FIG. 5(C). The electric reel 10 can be used at a DUTY ratio corresponding to the operation of the drive operation unit 17 without being lowered to 0% immediately. If the first or second abnormality determination condition is satisfied before the DUTY ratio reaches 100%, the DUTY ratio is lowered to 0% in the same manner as in FIGS. 4(B) and 4(C). be done.

On the other hand, while the high-speed winding gear is in use, even after the second abnormality determination condition is established and the voltage output to the motor 12 is stopped, the DUTY ratio rises again as described above (FIG. 6A). (See FIG. 6C). Then, in the same manner as in the above case, when the second abnormality determination condition is satisfied again, the voltage output to the motor 12 is cut off and the duty ratio becomes 0%, as shown in FIG. 6(A). go down. Further, when the first abnormality determination condition is satisfied although the second abnormality determination condition is not satisfied due to the decrease of the motor current, the DUTY ratio is gradually decreased to 0% as shown in FIG. 6(B). Become. When the motor current becomes less than the first reference current value and both the first and second abnormality determination conditions are not satisfied, as shown in FIG. The electric reel 10 can be used continuously.

When the voltage output to the motor 12 stops due to the establishment of the first or second abnormality determination condition while the low-speed winding gear is being used, the motor 12 is not automatically driven again. becomes. In this case, for example, by operating the gear switching operation unit 16S (see FIG. 1) provided on the upper surface of the electric reel 10, the transmission gear is switched from the low-speed winding gear to the high-speed winding gear, and then It becomes possible to drive the motor 12 using a high-speed winding gear.

The ROM of the MCU 52 stores the drive control program PG1 shown in FIG. 7 and the PWM control program (not shown). Execute repeatedly with

When the drive control program PG1 is executed, first, it is determined whether or not voltage output stop processing is being performed (S0). Specifically, whether the first abnormality determination condition is established and the voltage output to the motor 12 is gradually lowered to stop (between T2 and T3 in FIG. 5A), or , the second abnormality determination condition is satisfied and the process of cutting off the voltage output to the motor 12 is being executed (between T2 and T3 in FIG. 6A). is determined. If so (Yes in S0), the drive control program PG1 ends. If not (No in S0), it is determined whether or not it is during the drive inhibition period (S1). This drive prohibition period is a period during which driving of the motor 12 is prohibited. The period until the motor 12 can be driven (the period from T3 to T4 in FIGS. 5 and 6), and after the DUTY ratio is forced to 0% during use of the low-speed winding gear, the gear This is the period until the transmission gear is switched to the high-speed winding gear by operating the switching operation section 16S (see FIG. 1).

If it is during the drive prohibited period (Yes in S1), it is determined whether or not the low-speed winding gear is being used (S8). When the low-speed winding gear is not used (that is, when the high-speed winding gear is used), whether or not the high-speed gear switching operation has been performed, that is, the gear switching operation section 16S It is determined whether or not it has been operated (S9). This determination can be made by providing a flag so that, for example, the flag is set to 1 when the gear change operation section 16S is operated, and the flag is set to 0 when the low speed gear change process (S10) described later is executed. By referring to this flag, it is possible to determine whether or not the gear change operation section 16S has been operated. If the high-speed gear switching operation is being performed (Yes in S9), the drive control program PG1 ends. If the high-speed gear switching operation is not performed (No in S9), the transmission gear is switched to the low-speed winding gear and the output rotation direction of the motor 12 is reversed (S10), after which the drive control program PG1 is executed. finish.

Even when the low-speed winding gear is used in S8, it is determined whether or not the high-speed gear switching operation has been performed in S11 (S11). If the high-speed gear switching operation is performed, the transmission gear is switched to the high-speed winding gear in the high-speed gear switching process (S12). If the high-speed gear switching operation has not been performed in S11, the drive control program PG1 ends as it is.

On the other hand, if it is not during the drive inhibition period in S1 (No in S1), it is determined in S2 whether or not the DUTY ratio is automatically restored (between T4 and T5 in FIGS. 5 and 6). If the duty ratio is being restored (Yes in S2), the drive control program PG1 ends. If the DUTY ratio is not being restored (No in S2), an operation unit interlocking process (S3) is executed. In this process ( S<b>3 ), the duty ratio of the voltage output to the motor 12 is set so as to be changeable according to the rotation of the drive operation unit 17 . After S3, an operation section data acquisition process (S4) is executed. In this operation section data acquisition process (S4), the detection signal of the magnetic sensor 19 is acquired through the interface circuit 53 and the A/D converter, the rotational position of the drive operation section 17 is calculated, and this calculated value is stored in the RAM buffer. temporarily stored in

When S4 ends, it is determined whether or not the rotational position of the drive operation portion 17 is 0 degrees, that is, whether or not the drive operation portion 17 is arranged at one end of the rotation range of the drive operation portion 17 ( S5). When the rotational position of the drive operation unit 17 is 0 (Yes in S5), the duty ratio of the power output to the motor 12 is set to 0 in the motor stop processing (S13), and then the drive control program PG1 ends. . On the other hand, if the rotational position of the drive operation unit 17 is not 0 (No in S5), the switches 57A and 57B of the drive circuit 54 are turned on and off according to the rotational position by the PWM control program to change the DUTY ratio, and the effective voltage is changed accordingly. is applied between the pair of input electrodes of the motor 12 (that is, drives the motor 12 (S6)). After that, the drive control program PG1 ends after the current abnormality determination process (S7) is executed.

FIG. 8 shows details of the current abnormality determination process (S7). In the current abnormality determination process (S7), first, it is determined whether or not the motor current flowing through the motor 12 is equal to or greater than the second reference current value (S20). If Yes in S20, it is determined whether or not the second timer is in operation (S21). If the second timer is in operation (Yes in S21), the process proceeds directly to S23. If the second timer is not in operation (No in S21), a second timer activation process (S22) is executed, and measurement by the second timer is started. After that, the process proceeds to S23.

In S23, it is determined whether or not the second reference time has elapsed based on the second timer. If the second reference time has not elapsed (No in S23), the process proceeds to S31, which will be described later, and it is determined whether or not the motor current is greater than or equal to the first reference current value. If the second reference time has elapsed in S23 (Yes), that is, if the second abnormality determination condition is satisfied, the operation unit shutoff process (S24) is executed. In this process (S24), the drive operation unit 17 and the drive circuit 54 of the motor 12 are electrically disconnected so that the voltage output to the motor 12 cannot be changed even if the drive operation unit 17 is operated. After that, output cutoff stop processing (S25) is executed. In this process (S25), the process of interrupting the voltage output to the motor 12 to stop it (the DUTY ratio is set to 0%) is performed. Also, the first timer and the second timer are stopped and reset. After that, the current abnormality determination process (S7) ends.

On the other hand, when the motor current is less than the second reference current value in S20 (No), a second timer stop reset process (S30) is executed. In this process (S30), the second timer is stopped and the value of the second timer is reset. After that, the process proceeds to S31.

In S31, it is determined whether or not the motor current is greater than or equal to the first reference current value. If the motor current is less than the first reference current value (No in S31), a first timer stop reset process (S37) is executed. In this process (S37), the first timer is stopped and the value of the first timer is reset. After that, the current abnormality determination process (S7) ends.

In S31, if the motor current is greater than or equal to the first reference current value (Yes), it is determined whether or not the first timer is operating (S32). When the first timer is operating, the process proceeds to S34. If the first timer is not in operation, a first timer activation process (S33) is executed, and measurement by the first timer is started. After that, the process proceeds to S34.

In S34, it is determined whether or not the first reference time has elapsed based on the first timer. If the first reference time has not elapsed, the current abnormality determination process (S7) ends. If the first reference time has passed (Yes in S34), the operation unit shutoff process (S35) is executed. In this process (S35), the driving operation part 17 and the drive circuit 54 of the motor 12 are electrically cut off in the same manner as the above-described operation part blocking process (S24), and even if the driving operation part 17 is operated, the motor continues to operate. 12 cannot be changed.

Thereafter, output gradual change stop processing (S36) is executed. In this process S36, the duty ratio of the voltage output to the motor 12 is gradually lowered to 0% when the first abnormality determination condition is satisfied. Also, the first timer and the second timer are stopped and reset. After that, the current abnormality determination process (S7) ends.

The configurations of the electric reel control device 40 and the electric reel 10 of the present embodiment have been described above. Next, the effects of the electric reel control device 40 and the electric reel 10 will be described.

In the electric reel control device 40 and the electric reel 10 of the present embodiment, when the motor current flowing through the motor 12 continues to be equal to or greater than the rated current of the motor 12 for a predetermined base time or longer and becomes equal to or higher than a predetermined reference current value, Since the voltage output to the motor 12 is stopped regardless of the operation of the drive operation unit 17, it is possible to suppress excessive load on the motor 12 and the motor drive circuit 54. FIG. Here, when the motor current continues to be equal to or higher than the first reference current value for the first reference time or longer, the voltage output to the motor 12 is gradually lowered and stopped. As a result, the tension of the fishing line 99 is prevented from dropping abruptly, and it is possible to prevent the hook from detaching from the fish and being escaped by the fish (so-called fish release). In addition, by gradually decreasing the voltage output to the motor, it is possible to suppress an excessive voltage increase in the power supply circuit 51 due to the back electromotive force, compared to the case where the voltage output is decreased all at once.

Further, when the state in which the motor current is equal to or higher than the second reference current value, which is larger than the first reference current value, continues for the second reference time, the voltage output of the motor 12 is cut off. As a result, rather than gradually lowering the voltage output to the motor 12, it is possible to suppress excessive current from flowing through the motor 12 and the drive circuit of the motor, thereby reducing the load on the motor 12 and the drive circuit 54 of the motor 12. Become. Moreover, since the second reference time is shorter than the first reference time, the load on the motor 12 and the drive circuit 54 for the motor 12 can be further reduced.

In this embodiment, even if the voltage output to the motor 12 stops when the gear is in the high-speed winding gear, the voltage output to the motor 12 can be increased again by switching to the low-speed winding gear. As a result, even heavy fish that could not be pulled up by the electric reel 10 when using the high-speed winding gear can be pulled up by the low-speed winding gear. Note that the output rotation direction of the motor 12 may be the same when using the high-speed winding gear and when using the low-speed winding gear, or may be reversed.

In this embodiment, the MCU 52 when executing the current abnormality determination process (S7) corresponds to the "abnormality determination section" and the "abnormal stop control section" in the claims. Further, the driving circuit 54 corresponds to the "polarity switching circuit" described in the claims.

[Other embodiments]
(1) The motor 12 of the electric reel 10 in the above embodiment is a DC motor, but may be an AC motor or a stepping motor.

(2) In the above embodiment, a DSP (Digital Signal Processor) or the like may be provided instead of a general-purpose processor such as the MCU 52, or a dedicated circuit such as an ASIC (Application Specific Integrated Circuit) may be provided. good. Further, the drive control program PG1 may be stored in the ROM of the MCU 52, or may be stored in the RAM, flash memory 52C, or other storage medium, and further includes the RAM, ROM, and flash memory 52C. It may be stored in a combination of multiple types of storage media.

(3) In the above embodiment, the first reference current value is set to be equal to or higher than the rated current of the motor 12, but may be set to be lower than the rated current of the motor 12. In this case, the second reference current value may be set equal to or higher than the rated current of the motor 12 or may be set lower than the rated current of the motor 12 .

(4) In the above embodiment, the output rotation direction of the motor 12 is reversed when the first abnormality determination condition or the second abnormality determination condition is satisfied. good too. In this case, the transmission gear may be set so as not to change the rotation direction of the spool 11 even when the first or second abnormality determination condition is satisfied.

(5) In the above embodiment, when the first abnormality determination condition or the second abnormality determination condition is satisfied, the transmission ratio for transmitting the power of the motor 12 to the spool 11 is changed (high-speed winding gear , but it may be the same.

(6) In the above embodiment, the voltage output (DUTY ratio) to the motor 12 automatically increases after the voltage output to the motor 12 is stopped once the first or second abnormality determination condition is met. If the drive operation unit 17 is not manually operated, the DUTY ratio may remain at 0% without increasing, or the DUTY ratio may be changed according to the operation of the drive operation unit 17 .

(7) The electric reel control device 40 is for controlling the electric reels, but it may be used as a control device for controlling the drive circuit of other devices. Specifically, it can be used as a control device for controlling motor drive circuits for drone propellers, power tool motor drive circuits, stage performance lights, speaker volume, etc. may be used.

(8) In the above embodiment, the voltage output to the motor 12 was stopped based on the motor current. It is also possible to detect the load of the motor 12 by using the motor 12 and stop the voltage output to the motor 12 when the tension exceeds a predetermined reference value.

REFERENCE SIGNS LIST 10 electric reel 12 motor 17 drive operating unit 40 electric reel control device 52 MCU
54 drive circuit

Claims (4)

An electric reel control device (40) for changing a voltage output to a motor (12) for winding a fishing line of an electric reel (10) according to operation of a driving operation section (17) provided in the electric reel (10). in
A first reference current value, a second reference current value greater than the first reference current value, a first reference time, and a second reference time shorter than the first reference time are predetermined and stored. a reference data storage unit (52C);
Whether the motor current flowing through the motor (12) continues for the first reference time or longer and is equal to or higher than the first reference current value satisfies a first abnormality determination condition, and the motor current continues for the second reference time or longer. an abnormality determination unit (52) for determining whether or not a second abnormality determination condition is satisfied, the second abnormality determination condition being equal to or greater than the second reference current value;
When the first abnormality determination condition is met, the voltage output to the motor (12) is gradually lowered and stopped regardless of the operation of the drive operation unit (17), while the second abnormality determination condition is met. An electric reel control device (40) comprising: an abnormal stop control section (52) that cuts off the voltage output to the motor (12) to stop it, regardless of the operation of the drive operation section (17). In the electric reel (10), when the output rotation direction of the motor (12) is one rotation direction, the high-speed winding gear is connected to the rotation output of the motor (12), while the motor (10) 12) is provided with a gear switching mechanism that connects the low-speed winding gear to the rotational output of the motor (12) when the output rotational direction of 12) is the other rotational direction;
When the voltage output to the motor (12) is stopped by the abnormal stop control section (52) while the high-speed winding gear is connected to the rotational output of the motor (12), the motor (12) The electric reel control device (40) according to claim 1, further comprising a polarity switching circuit (54) for reversing the polarity of the voltage output to the motor (12) to switch the output rotation direction of the motor (12). When the first abnormality determination condition is satisfied, the abnormal stop control section (52) gradually lowers the voltage output to the motor (12) so that the voltage output is equal to or less than a predetermined reference voltage output. 3. A motorized reel control device (40) according to claim 1 or 2, wherein the voltage output is reduced faster than before when the voltage reaches . An electric reel (10) comprising an electric reel control device (40) according to any one of claims 1 to 3.

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