JPH1080056A - Motor controller for electrically driven reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to prevent the burning of a motor by the rapid increase of a load and the stagnation of heat for a long period without stopping the motor as much as possible by controlling the power to be supplied into the electrically driving motor so that the load detected by a load detecting means does not exceed the specified upper value. SOLUTION: A current value I of a current detecting sensor is read, and whether the current value I exceeds an upper limit current value IU or not and decreased from a lower-limit current value IL or not is judges. For example, when the current value I exceeds the upper limit current value IU, the supplied current is controlled so that the current value I is maintained at the current value lower than the specified time constant after the specified time constant τ. When the value becomes lower than the lower limit current value IL, the restriction is released. By controlling the supply current to the motor so as to maintain the current value lower than the upper limit current value when the current value I exceeds the upper limit current value IU in this way, the deterioration and the damages of the motor and the control element by the rapid increase of the load can be suppressed, and the rapid temperature increase, which cannot be stopped by the temperature control, can be countered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a motor control device,
In particular, the present invention relates to a motor control device for an electric reel that can drive a spool around which a fishing line is wound by an electric motor.

[0002]

2. Description of the Related Art An electric reel is known as a reel mounted on a fishing rod. The electric reel can rotate a spool around which a fishing line is wound by a handle and a motor. When the motor-on switch is pressed after the fishing line is drawn out to a predetermined depth, the spool is rotated in the line winding direction.

[0003] In this type of electric reel, continuous operation under a high load is forced depending on the target fish, so it is important to take measures against overload to prevent burnout of the motor for driving the spool. 2. Description of the Related Art Conventionally, as a countermeasure against overload of an electric reel, generally, a mechanical breaker is often installed. Although a mechanical breaker is inexpensive, it is difficult to set the operation accurately, and if the burnout is actually prevented, the power supply is frequently stopped. When the energization is stopped, the angler must support the fishing rod or operate the drag while winding the reel, which increases the burden on the angler.

In order to prevent frequent power interruptions, there is known a technique in which when the load exceeds a predetermined value, a lower limit power than normal power is supplied to reduce the number of power interruptions (Japanese Patent Laid-Open No. 7-336879). ). In this technology, a load is detected based on the number of revolutions of a spool, and when the load is equal to or more than a reference load, a limited power with a gradually reduced duty ratio is supplied.
The detected load does not exceed the reference load.

[0005]

In the above-mentioned conventional configuration,
Burnout due to a sudden increase in load can be prevented without stopping the motor. However, even if such a sudden increase in load does not occur, if the motor operates continuously for a long time with a load slightly smaller than the reference load, the temperature gradually increases due to heat generation of the motor. If heat stays in the motor after this state continues, the motor may be burned even if the load does not exceed the reference load.

An object of the present invention is to prevent burnout of a motor due to a sudden increase in load or stagnation of heat for a long time without stopping the motor as much as possible.

[0007]

A motor control device for an electric reel according to a first aspect of the present invention is a device capable of driving a spool around which a fishing line is wound by an electric motor, comprising: a temperature detection unit; a first motor control unit; A load detecting means and a second motor control means are provided. The temperature detecting means detects a temperature associated with heat generated by rotation of the electric motor. The first motor control means controls the electric motor with electric power corresponding to the temperature detected by the temperature detection means. The load detecting means detects a fluctuating load of the electric motor. Second
The motor control means controls electric power supplied to the electric motor such that the load detected by the load output means does not exceed a predetermined upper limit.

[0008] In this motor control device, the electric motor is controlled with a predetermined electric power according to the temperature accompanying the heat generated by the rotation of the electric motor detected by the temperature of the control element and the like. For this reason, even if the motor temperature increases gradually due to the continuous high load, the power is reduced correspondingly, the long-term heat retention is suppressed, and burning due to this is prevented.
However, it is difficult to cope with a sudden increase in the load only by this control. Therefore, when the load suddenly exceeds the predetermined reference load, the power supplied to the electric motor is controlled so as not to exceed the predetermined reference load. For this reason, it is possible to prevent burnout due to a sudden increase in load and burnout of the electric motor due to accumulation of heat without stopping the motor as much as possible.

According to a second aspect of the present invention, in the motor control device for an electric reel according to the first aspect, the load detecting means has a current detecting means for detecting a current supplied to the electric motor. Load is detected by the value. In this case, the current supplied to the electric motor changes instantaneously in response to the load, so that a rapidly changing load can be reliably detected.

According to a third aspect of the present invention, in the motor control device for an electric reel according to the first or second aspect, the temperature detecting means detects a temperature of the electric motor or a temperature of a control element for controlling the electric motor. When the temperature of the electric motor is detected, a temperature rise due to heat retention can be accurately detected in real time. Further, when detecting the temperature of the control element, it is necessary to check in advance the correlation between the temperature rise of the control element and the temperature rise of the electric motor, but the control element is arranged in the control device apart from the motor. Therefore, the temperature detecting means can be arranged in the control device, and the waterproof structure and wiring of the temperature detecting means are simplified.

According to a fourth aspect of the present invention, in the motor control device for an electric reel according to the third aspect, the control element is a motor driving element for driving an electric motor. In this case, when the temperature of the electric motor rises, the temperature of the motor driving element also rises immediately, so that the correlation between the temperature rise of the motor driving element and the temperature rise of the electric motor can be easily confirmed.

A motor control device for an electric reel according to a fifth aspect of the invention is the device according to the third aspect, wherein the control element is a current detection element included in current detection means. In this case, it is possible to easily detect the temperature of the electric motor that rises as the current increases. A motor control device for an electric reel according to a sixth aspect of the present invention is the device according to any one of the first to fifth aspects, wherein the first motor control unit includes: a power setting unit configured to set power according to a temperature; Power supply means for supplying the power set by the power setting means according to In this case, for example, by setting in advance the electric power that does not cause a temperature rise when the electric motor is in the rotation locked state as the minimum electric power supply amount, burnout due to heat retention is less likely to occur.

A motor control device for an electric reel according to a seventh aspect of the present invention is the motor control device according to any one of the first to sixth aspects, wherein the electric power supplied to the electric motor is controlled in a stepwise manner so that the spool rotation speed can be controlled at a plurality of speeds. And a third motor control means for limiting the maximum power supply amount at each shift speed. In this case, the winding speed can be freely set according to the application.

According to an eighth aspect of the present invention, there is provided the motor control device for an electric reel according to the seventh aspect, wherein the third motor control means is arranged so that the maximum power supply amount is higher on the high speed side than on the low speed side. Controls the electric motor. In this case, the maximum power supply on the high-speed side is larger than that on the low-speed side. The fishing line can be hoisted, and in a high-speed region used when collecting a device, operation can be performed at the highest speed and maximum power, and unnecessary heat generation of the electric motor and the control element can be prevented.

According to a ninth aspect of the present invention, in the motor control device for an electric reel according to the seventh or eighth aspect, the first, second, and third motor control means supply pulse electric power to the electric motor, The power supplied to the electric motor is controlled by changing the maximum duty ratio of the pulse width according to the detected heat generation, load, and each shift speed. In this case, by performing PWM control on the electric motor according to heat generation, load, and each shift speed, each control can be easily realized by one method.

A motor control device for an electric reel according to a tenth aspect of the present invention is the device according to any one of the second to ninth aspects, wherein
The second motor control means, when the detected current value exceeds the upper limit, controls the electric motor to be a predetermined current value lower than the upper limit value, and when the detected current value falls below the lower limit value lower than the predetermined current value, Release control. In this case, when the load exceeds the upper limit value, the current value is controlled so as to be immediately lower than the upper limit value, so that even if the load increases suddenly, burning due to the current hardly occurs.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric reel adopting an embodiment of the present invention shown in FIG. 1 is a reel having a water depth indicator for displaying a water depth by a thread payout length. The electric reel mainly includes a reel body 1, a spool rotating handle 2 disposed on the side of the reel body 1, and a drag adjusting star drag 3 disposed on the reel body 1 side of the handle 2. ing. A spool 10 connected to the handle 2 is rotatably supported inside the reel body 1. A DC-driven motor 12 that drives the spool 10 to rotate in the line winding direction is disposed inside the spool 10. An operating lever 11 of a clutch (not shown) for turning on / off the drive transmission between the handle 2 and the motor 12 and the spool 10 is disposed on a front side surface of the reel body 1. This clutch can also be turned on (engaged) by a solenoid 27 (FIG. 3) arranged in the reel body 1. When the clutch is turned on, the line feeding operation can be stopped during the line feeding by the own weight of the device.

An operation panel 4 is fixed to an upper portion of the reel body 1. As will be described in detail with reference to FIG. 2, the operation panel 4 includes a display unit 5 composed of a liquid crystal display for displaying the depth of the device and the shelf position based on two criteria, and various types of devices arranged around the display unit 5. An operation key unit 6 is provided. The display unit 5 includes a water depth display unit 5a for displaying different water depths according to display modes (a mode from the top and a mode from the bottom), a mode display unit 5b for displaying various modes and operation states, and a water bottom display. A bottom memo display section 5c for displaying the water depth S, a shelf memo display section 5d for displaying the upper shelf position TU or the bottom shelf position TS according to the display mode, and nine gear stages for winding up the spool 10. And a speed display section 5e for performing the operation.

The water depth display section 5a, the bottom memo display section 5c and the shelf memo display section 5d can display the water depth with three digits of positive and negative.
The operation mode display section 5b displays the display mode on the screen in one of two types of characters, "from the top" and "from the bottom". Here, the mode from above is a mode for displaying the water depth of the device from the water surface with reference to the reel, and the mode from the bottom is a mode for displaying the distance from the water bottom to the device with reference to the water bottom. For this reason, the mode from the top
The mode from the bottom is suitable for catching a fish called “top thing”, and is suitable for catching a fish called “bottom thing”.

The operation key unit 6 includes a speed adjustment key SK and a motor on / off button PB arranged vertically on the right side of the display unit 5, a jig button IB and a shelf memo button TB arranged vertically on the left side. A bottom memo button SB is provided. The speed adjustment button SK is of a seesaw type composed of two switches. When the upper switch is pressed, the gear shifts gradually to the high speed side during the time the speed is being pressed, and when the lower switch is pressed, the shift speed shifts to the low speed side. . Also,
When the pressing is stopped, the gear returns to the neutral position and the gear position at that time is maintained. The motor on / off button PB is
Is turned on and off, and the shift speed of the motor 12 is shifted from the low-speed side to the high-speed side according to the time for which the button is kept pressed. Then, when the pressing is stopped, the gear returns to the off position and the gear stage at that time is maintained. When the gear position is selected by operating the motor on / off button PB or the speed adjustment key SK, the spool rotation speed increases or decreases to a speed corresponding to the gear position.

The jig button IB is a button used to set a jig mode in which a jig is moved near a shelf, to perform jig learning, or to cancel the jig mode. The shelf memo button TB is a button for setting an upper shelf position in the mode from the top and a bottom shelf position in the mode from the bottom. If the shelf memo button TB is pressed for more than 3 seconds, the water depth display is set to zero. The bottom memo button SB is a button for setting the water depth of the water bottom.
When the bottom memo button SB is kept pressed for 3 seconds or more, the display mode can be switched between the top mode and the bottom mode.

As shown in FIG. 1, the left side of the operation panel 4 is a mounting surface 15a for a line length measuring device 15 for measuring the actual length of the fishing line wound around the spool 10. On the front surface of the reel body 1 and on the rear surface of the operation panel 4, locking portions 16, 1 for mounting a yarn length measuring device 15 are provided.
7 are provided. A relay switch 22 (FIG. 3) formed of a reed switch for detecting a rotating magnet (not shown) attached to the yarn length measuring device 15 and an alarm for outputting various alarm sounds are provided on the back side of the mounting surface 15a. 7 (FIG. 3). The line length measuring device 15 is for measuring the actual fishing line payout length by constantly bringing a rotating roller into contact with the fishing line wound on the spool 10 and rotating the magnet by the roller. It is attached only when a new fishing line is wound around the spool 10. By learning the relationship between the actual yarn length and the spool rotation speed using this yarn length measuring device 15, the yarn length that changes according to the yarn winding diameter can be accurately measured by the spool rotation speed. Water depth can be displayed accurately.

The electric reel is provided with a control unit 2 shown in FIG.
It has 0. The control unit 20 includes a microcomputer including a CPU, a RAM, a ROM, an I / O interface, and the like arranged in the operation panel 4, and executes various control operations described later according to a control program. The control unit 20 includes various buttons of the operation key unit 6,
1 for detecting the rotation direction and rotation speed of the spool 10
Spool rotation sensor 21 composed of a pair of reed switches
, A relay switch 22, a current detection sensor 23 for detecting a current value supplied to the motor 12, and a temperature sensor 24. The current detection sensor 23 detects a current supplied to the motor 12 by detecting a partial voltage across the FET 25a which is a motor drive element used in a PWM drive circuit 25 described later. When an FET having a current detection function is used, the current detection sensor 23 is unnecessary. The temperature sensor 24 indirectly detects the temperature of the motor 12 based on the temperature of the FET 25a. Here, the current detection sensor 23 and the temperature sensor 24 are arranged in the operation panel 4 together with the control unit 20. As described above, by detecting the temperature of the motor 12 based on the temperature of the FET 25a disposed in the operation panel, the wiring and the waterproof structure can be compared with the configuration in which the temperature of the motor 12 disposed outside the operation panel 4 is directly detected. Is simplified.

The control unit 20 includes an alarm 7, a display unit 5, and a PWM drive circuit 25 using an FET 25a.
And a storage unit 26 composed of a nonvolatile memory for storing various control data, a clutch-on solenoid 27, and other input / output units. The motor 12 is connected to the PWM drive circuit 25. Note that a mechanical breaker may be provided between the PWM drive circuit 25 and the motor 12. If a mechanical breaker is provided, a fail-safe function can be performed in the event of a runaway of the control unit 20 or a trouble that cannot be solved only by power control.

The storage unit 26 includes a display data storage area 30 for storing display data such as a shelf position, a learning data storage area 31 for storing learning data indicating a relationship between an actual thread length and a spool rotation speed, A first duty table storage area 32 for storing a maximum duty ratio D _TU according to the temperature of the motor 12 used in the PWM drive circuit 25;
A second duty table storage area 33 for storing the maximum duty ratio D _SU according to the shift speed used in the WM drive circuit 25, and a data storage area 34 for storing various data are provided.

Here, in the first duty table storage area 32, as shown in FIG. 10, a maximum duty ratio D _TU that varies depending on the temperature T of the FET 25a is stored. That is, when the temperature T is less than 80 degrees, _DTU is 1
00%, 70%, 90 when it is 80 degrees or more and less than 90 degrees
If it is higher than the degree, it is set to 40%. This 9
The maximum duty ratio D _TU (40%) at 0 degrees or more is
When the motor 12 is actually locked in rotation, the motor 12 (FE
It is determined by confirming that there is no temperature rise at T25a). In addition, each set temperature (80 degrees, 90 degrees)
This is set according to the reel model, the type of motor, and the like. As described above, by changing the maximum duty ratio D _TU at each temperature T, the temperature of the motor 12 is less likely to exceed a certain temperature, so that even if the motor 12 is driven for a long period of time, it is hard to burn.

As shown in FIG. 11, the second duty table storage area 33 stores, for example, 50% in the first to third speeds, 65% in the fourth to sixth speeds, and 80% in the seventh and eighth speeds.
%, The maximum duty ratio D _SU of 100% at the highest 9th speed
Is stored. When the maximum duty ratio D _SU is set to increase as the shift speed increases,
There is a difference in the maximum power at each speed, and at medium to low speeds, it is possible to wind up with the minimum necessary power that is difficult to cut and cut. Further, at the time of collecting the device, the film can be wound up at the maximum speed and the maximum power as in the related art. For this reason, unnecessary heat generation of the motor and its control element can be prevented, and even if the motor is used for a long period of time, it is difficult for burnout to occur,
The motor is less likely to deteriorate and be damaged.

In the data storage area 34, the duty ratio D actually set and the two duty tables 3
Maximum duty ratios D _TU , D _SU read from 2, 33
And the set gear stage SC and the like are stored. The data storage area 34 stores various other data.
Next, control processing performed by the control unit 20 will be described with reference to control flowcharts shown in FIGS.

When a battery (not shown) is connected to the electric reel, initialization is performed in step S1 in FIG. Here, the water depth display is set to “0”, various flags are reset, and the display mode is set to the mode from above. In step S2, a display process is performed. In the display processing, various displays such as a water depth display on the display unit 5 are performed. Here, when the mode is from the top, the water depth LN from the top is displayed on the water depth display portion 5a, and when the mode is from the bottom, the distance S from the water bottom is displayed. Also, when the shelf position is set, the upper shelf position TU is displayed on the shelf memo display section 5d when the mode is from the top.
However, when the mode is from the bottom, the bottom shelf position TS is displayed.

In step S3, it is determined whether a key input has been made by operating various buttons of the operation key unit 6. In step S4, it is determined whether the spool 10 has rotated. This determination is made based on the output of the spool rotation sensor 21. In step S5, it is determined whether another command has been issued. When a key input is made, the process moves from step S3 to step S6, and the key input process shown in FIG. 6 is performed. When it is determined that the spool 10 is rotating, the process proceeds from step S4 to step S7, and it is determined whether the relay switch 22 is on. Relay switch 2
2 is turned on only when the yarn length measuring device 15 is mounted and the relationship between the yarn length and the rotational position of the spool 10 is learned. If the relay switch 22 is turned on, the process shifts to step S8 to shift to a learning mode process for learning the relationship between the rotation of the spool 10 and the thread length. In the learning mode process, map data MAP (N) indicating the relationship between the yarn length (water depth) LN and the rotation data N of the spool 10 is calculated and stored in the learning data storage area 31. If the relay switch 22 is not turned on, the process shifts to step S9 to execute each mode process. When another command is issued, the process shifts from step S5 to step S10 to perform another process according to the command.

In the key input process of step S6, it is determined whether or not the motor on / off button PB has been pressed in step S21 of FIG. In step S22, it is determined whether or not the upper switch of the speed adjustment button SK has been pressed. In step S23, it is determined whether or not the down switch of the speed adjustment button SK has been pressed. In step S24, it is determined whether or not the shelf memo button TB has been pressed. In step S25, it is determined whether the bottom memo button SB has been pressed. In step S26, the bottom memo button SB is held for a long time (for example, 3
It is determined whether or not another key input such as a key input of more than one second), a simultaneous operation of the bottom memo button SB and the shelf memo button TB, and a key input of the jig button IB has been performed.

When the motor on / off button PB is pressed, the flow shifts from step S21 to step S30. In step S30, it is determined whether or not the motor 12 has already been turned on. If the motor 12 has already been turned on, the process proceeds to step S31, and the motor 12 is stopped. If the motor 12 is off, the process proceeds to step S32, and the motor 12 is turned on. In step S33, the gear is increased by the time during which the gear is pressed. The gear stage SC at this time is displayed on the speed display section 5e in the display processing, and is stored in the data storage area 34. In step S34, the motor speed increasing process shown in FIG. 7 is performed.

When the upper switch of the speed adjustment button SK is pressed, the flow shifts from step S22 to step S35. In step S35, the gear is increased by the time during which the gear is pressed. The speed stage SC at this time is displayed on the speed display section 5e in the display processing, and the data storage area 34 is displayed.
Is stored. In step S36, the aforementioned motor speed-up processing is performed.

When the down switch of the speed adjustment button SK is pressed, the flow shifts from step S23 to step S37. In step S37, the gear is lowered for the time during which the gear is being pressed. The gear stage SC at this time is also displayed on the speed display section 5e in the display processing, and the data storage area 34 is also displayed.
Is stored. In step S38, a motor deceleration process shown in FIG. 8 is performed.

When the shelf memo button TB is pressed, a step S is performed.
Then, control proceeds from S24 to step S39. In step S39, the water depth LN at this time is stored in the shelf position data storage area 30 as the upper shelf position TU. In step S40, a value obtained by subtracting the current water depth LN from the water depth S at the water bottom is stored in the shelf position data storage area 30 as the bottom shelf position SU.

When the bottom memo button SB is pressed, a step S is performed.
From 25, the process proceeds to a step S41. In step S41, the water depth LN at this time is stored in the shelf position data storage area 30 as the water depth S of the water bottom. When another key input is performed, the process proceeds from step S26 to step S42,
Other key input processing corresponding to the pressed key is performed. For example, when the bottom memo button SB is pressed for 3 seconds or more, the display mode is switched from top to bottom. When the jig button IB is pressed, the operation mode is switched to the jig mode.

In the motor speed-up process, step S5 in FIG.
In step 1, the temperature T of the FET 25a is read by the temperature sensor 24.
Put in. In step S52, the first duty table
Temperature maximum temperature at the temperature T detected from the storage area 32
Tee ratio D_TUAnd set it in the data storage area 34
I do. In step S53, the gear position SC is read. S
In step S54, a gear shift corresponding to the read gear stage SC is performed.
Stage maximum duty ratio D _SUTo the second duty table 33
And is set in the data storage area 34. S
In step S55, the set gear stage maximum duty
Ratio D_SUIs the maximum temperature duty ratio D_TUWhether it ’s greater than
to decide. Gear stage maximum duty ratio D_SUIs the maximum temperature
Tea ratio D_TUIf larger, the process proceeds to step S56.
And the actual maximum duty ratio D_UIs determined by the shift speed.
Speed gear maximum duty ratio D_SUSet to. When small
Shifts to step S57, where the actual maximum duty ratio D_U
Is the temperature maximum duty ratio D obtained from the temperature_TUSet to
I do.

In step S58, the current duty ratio
D is the actual maximum duty ratio D_UDetermine whether or not
I do. Duty ratio D is the actual maximum duty ratio D_Umore than
If it has, the process proceeds to step S59 and the duty
The ratio D is the actual maximum duty ratio D _USet to. Also,
Duty ratio D is the actual maximum duty ratio D_UIf less than
Shifts to step S60, and sets the duty ratio D to a predetermined value.
Increment DI is increased. This increment DI is, for example, "5"
It is. At this time, the set gear stage SC is
When the same spool rotation speed is reached, the duty ratio D
Maximum duty ratio D_UDuty ratio D
Does not increase. Conversely, the sprocket corresponding to the set gear stage SC
Duty ratio D does not reach the maximum
Duty ratio D_UExceeds duty ratio D,
No.

In step S61, the current detection sensor 23
The current value I is read. In step S62, the read
Current value I is upper limit current value I_UIt is determined whether or not exceeds.
In step S63, the read current value I is the lower limit current value.
I_LIt is determined whether it has decreased further. When the current value I
Flow value I_UIf it exceeds, step from step S62
The process proceeds to S64 and a current value of 16 A flows through the motor 12.
Duty ratio D _ESet to duty ratio D
You. Current value I is lower limit current value I_LIf lower
If the processing has not been reduced and the processing has not decreased, step S63
From step S65 to the duty ratio D_EThe du
Set to the duty ratio D. Here, as shown in FIG.
The current value I is equal to the upper limit current value I_UExceeds the prescribed time limit
After the number τ, the current becomes lower (for example, 16 A).
The supply current is controlled so as to maintain the value I, and the lower limit current value I
_LWhen the following occurs, the control is released. Thus,
The flow value I is the upper limit current value I_UAbove, lower current
Control the supply current to the motor 12 to maintain the value
As a result, the motor 12 and the control element
Deterioration and damage can be suppressed.
It can cope with a sudden increase in load that cannot be caught up.

In the motor deceleration control, step S7 in FIG.
It determines whether the current duty ratio D becomes equal to or less than the actual minimum duty ratio D _L 1. If the duty ratio D is equal to or less than the actual minimum duty ratio D _L , step S7
2 and change the duty ratio D to the actual minimum duty ratio D _L
Set to. If the duty ratio D exceeds the actual minimum duty ratio D _L , the process proceeds to step S73,
The duty ratio D is reduced by a predetermined decrement DD. The decrement DD is, for example, “5”. Note, again, the load is increased, when it reaches the spool rotational speed corresponding to the set shift speed SC is also the duty ratio D does not exceed the actual minimum duty ratio D _L decreases the duty ratio D do not do.

In each mode processing, step S81 in FIG.
It is determined whether or not the rotation of the spool 10 is the rotation in the line feeding direction. This determination is made based on which reed switch of the spool rotation sensor 21 is turned on first. When it is determined that the rotation direction of the spool 10 is the line payout direction, the process proceeds to step S82. In step S82, the rotation data N is increased. In step S83, a water depth LN is obtained from the increased rotation data N by using map data MAP. Thereby, the water depth display is updated in the display processing. In step S84, it is determined whether or not the calculated water depth LN matches the upper shelf position TU. In the step S85, it is determined whether or not another mode is set. If the mode is not another mode, each mode process is ended and the process returns to the main routine.

When the water depth LN coincides with the upper shelf position TU, the flow shifts from step S84 to step S86. Step S
At 86, a shelf alarm is output from the alarm 7. In step S87, the solenoid 27 is turned on to turn on the clutch. In the case of another mode, the process shifts from step S85 to step S88 to execute another mode process. When it is determined that the rotation direction of the spool 10 is the line winding direction, the process proceeds from step S81 to step S90. Step S
At 90, the rotation data N is reduced. In step S91, a water depth LN is obtained from the increased rotation data N using map data MAP. Thereby, the water depth display is updated in the display processing. In step S92, it is determined whether a subtraction value obtained by subtracting the calculated water depth LN from the water depth S of the water bottom matches the bottom shelf position TS. In step S93, it is determined whether or not the calculated water depth LN matches the ship's edge stop position FB. The hull stop position FB is a position set so that the device is returned to the hand.

When the subtraction value matches the bottom shelf position TS, the flow shifts from step S92 to step S94. Step S9
In step 4, a shelf alarm is output from the alarm 7. In step S95, the motor 12 is turned off. When the water depth LN coincides with the hull stop position FB, steps S93 to S9 are performed.
Move to 6. In step S96, a shore alarm is output from the alarm 7. In step S97, the motor 12 is turned off.

[Other Embodiments] (a) The temperature of the motor may be directly detected. In this case, the wiring and the waterproof structure are complicated as compared with the above embodiment. Further, the temperature of the motor may be detected based on the temperature of the current detection sensor. (B) Instead of a configuration in which the motor is controlled by the current, the motor may be controlled by the voltage. For example, a DC-DC converter using an FET may be arranged between the motor and the control unit, and a voltage corresponding to a load may be supplied from the DC-DC converter to the motor. (C) The motor is not limited to a DC motor, but may be an AC motor or a stepping motor.

[0045]

In the motor control device for an electric reel according to the present invention, the electric motor is controlled with a predetermined electric power according to the temperature accompanying the heat generated by the rotation of the electric motor detected by the temperature of the control element. Therefore, even if the motor temperature increases gradually due to the continuous high load, the power is reduced correspondingly, the long-term retention of heat is suppressed, and burning due to this is prevented. Further, when the load suddenly exceeds the predetermined reference load, the power supplied to the electric motor is controlled so as not to exceed the predetermined reference load. For this reason, it is possible to prevent burnout due to a sudden increase in load and burnout of the electric motor due to accumulation of heat without stopping the motor as much as possible.

[Brief description of the drawings]

FIG. 1 is a plan view of an electric reel to which an embodiment of the present invention is applied.

FIG. 2 is an enlarged plan view of the operation panel.

FIG. 3 is a control block diagram of a reel.

FIG. 4 is a schematic diagram showing an area configuration of a storage unit.

FIG. 5 is a flowchart showing processing contents of a main routine.

FIG. 6 is a flowchart showing the contents of a key input process.

FIG. 7 is a flowchart showing the contents of a motor speed-up process;

FIG. 8 is a flowchart showing the contents of a motor deceleration process.

FIG. 9 is a flowchart showing the contents of each mode process.

FIG. 10 is a graph showing a relationship between a temperature and a maximum duty ratio.

FIG. 11 is a graph showing a relationship between a shift speed and a maximum duty ratio.

FIG. 12 is a graph showing a change in current during current control.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Spool 12 Motor 20 Control part 23 Current detection sensor 24 Temperature sensor 25 PWM drive circuit 25a FET 26 Storage part

Claims (10)

[Claims] 1. A motor control device for an electric reel capable of driving a spool around which a fishing line is wound by an electric motor, comprising: temperature detecting means for detecting a temperature associated with heat generated by rotation of the electric motor; First motor control means for controlling the electric motor with electric power corresponding to the temperature detected by the detection means, load detection means for detecting a fluctuating load of the electric motor, and a load detected by the load output means. A motor control device for an electric reel, comprising: second motor control means for controlling electric power supplied to the electric motor so as not to exceed a predetermined upper limit value. 2. The electric reel according to claim 1, wherein said load detecting means has current detecting means for detecting a current supplied to said electric motor, and detects said load based on a detected current value. Motor control device. 3. The electric reel motor control device according to claim 1, wherein said temperature detecting means detects a temperature of said electric motor or a temperature of a control element for controlling said electric motor. 4. The motor control device for an electric reel according to claim 3, wherein said control element is a motor driving element for driving said electric motor. 5. The motor control device for an electric reel according to claim 3, wherein said control element is a current detection element included in said current detection means. 6. The first motor control means includes: a power setting means for setting power according to a temperature; and a power supply means for supplying power set by the power setting means according to the detected temperature. The motor control device for an electric reel according to any one of claims 1 to 5, further comprising: 7. A motor control device according to claim 1, further comprising: third motor control means capable of controlling the electric power supplied to said electric motor in a stepwise manner to shift the spool rotation speed to a plurality of shift speeds.
7. The motor control device for an electric reel according to any one of claims 1 to 6. 8. The motor for an electric reel according to claim 7, wherein said third motor control means controls said electric motor at each shift speed so that the maximum power supply amount is higher on the high speed side than on the low speed side. Control device. 9. The first, second, and third motor control means supplies pulse power to the electric motor, and determines a maximum duty ratio of a pulse width of the pulse power to the detected temperature, load, The motor control device for an electric reel according to claim 7 or 8, wherein the electric power supplied to the electric motor is controlled by changing the electric motor in accordance with a shift speed. 10. The second motor control means controls the electric motor such that, when the detected current value exceeds an upper limit, the predetermined current value is lower than the upper limit value.
The motor control device for an electric reel according to any one of claims 2 to 9, wherein the control is released when the current falls below a lower limit lower than the predetermined current value.