JPH11289934A - Reel for fishing and its charging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide both a completely hermetically sealed double bearing reel for fishing without requiring operations to exchange a battery, without requiring a special structure for exchanging the battery and without exposing a metal electrode, etc., to the outside and a charging device for the reel. SOLUTION: This reel for fishing is capable of inducing an AC electromotive force in a loop coil 42 provided in the reel by electromagnetic induction and charging a secondary battery for feeding a power source to a microcomputer 43 contained in the reel. The interterminal voltage of the secondary battery 44 is always monitored to detect a voltage completing the charging and the minimum operation guaranteed voltage of the secondary battery 44. An operator is informed about the state of the interterminal voltage of the secondary battery 44 by flashing a light-emitting diode LED when completing the charging or displaying the attainment of the minimum operation guaranteed voltage in a liquid crystal display device 41 when the minimum operation guaranteed voltage attains.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing reel, and more particularly to a fishing reel that uses a secondary battery as a battery on the reel side and charges the secondary battery using an electromotive force generated by electromagnetic induction, and a charging device therefor. .

[0002]

2. Description of the Related Art Some manual reels for fishing have a function of calculating the length of a fishing line that has been fed, and a microcomputer (hereinafter referred to as "MPU") for performing this processing. Some are built-in. Conventionally, a small button type or coin type battery has been used as a power source for operating the MPU. Because they are primary batteries, they must be replaced with new ones when their life is over.
This replacement has to be performed by the user himself or, if the control box has a battery with a built-in battery, the reel must be sent to the manufacturer to replace the battery. In any case, since the control data stored in the RAM may be lost due to the temporary cutoff of the power when the battery is replaced, a scheme for saving the RAM data when the power is cut off is devised. Required.

[0003] Japanese Patent Application Laid-Open No. 6-233640 discloses a method for preventing loss of control data when a power supply is absent during battery replacement. As shown in FIG.
A power supply mechanism 141 for temporarily supplying power to the MPU when the battery is absent during replacement is provided, and a switch 142 for switching the operation mode of the processing unit 136 according to the presence or absence of the battery 123 is provided. When it is determined that the battery 123 has been removed by operating the switch 142, the two terminals 140, 140 of the MPU are electrically connected, and the processing unit 136 is switched to the sleep mode. In the sleep mode, the power supply mechanism 14 as a backup power supply
1 is suppressed as much as possible, thereby preventing loss of control data.

[0004] In addition, the portion for enclosing the battery is designed so that the battery can be taken out and attached by a relatively simple operation at the time of battery replacement, and that the watertightness can be maintained even if the replacement is performed. O as a sealing member for the enclosure
Ringing or the like is generally used.

[0005]

However, by adding a configuration for data loss as described above,
Even if data loss during battery replacement can be prevented, chattering occurs between the battery electrode and the battery holder terminal at the moment when a new battery is installed, and the trouble caused by chattering cannot be completely solved. In addition, due to repeated use for a long time, deterioration of the resinous structural members and O-rings forming the sealing portion of the battery enclosing portion,
Alternatively, there is a problem that the battery enclosing portion is damaged due to repeated replacement work, and the initial watertightness cannot be maintained for long-term use or repeated replacement work.

Accordingly, the present invention does not require a battery replacement operation, does not require a special structure for battery replacement, and has a completely sealed fishing double-axis reel power supply in which metal electrodes and the like are not exposed to the outside. It is intended to provide a device.

[0007]

In order to achieve the above object, the present invention provides a fishing reel including a microcomputer (43) for calculating and processing at least a line feeding length. And a rechargeable secondary battery (44) for operating the battery is built in the reel body, and the secondary battery (44) is charged using an electromotive voltage generated by electromagnetic induction from outside the reel body. It is characterized by.

In the above fishing reel, it is preferable to combine a built-in power receiving coil with a fishing reel that receives power from an excitation coil for generating an electromotive voltage generated by electromagnetic induction provided outside.

Further, it is preferable to have a notifying means for notifying the operator of the completion of charging when the charging of the secondary battery is completed.

Further, it is preferable that when the charging of the secondary battery is completed, the operation of charging the secondary battery is automatically terminated.

Further, the present invention provides a fishing device including a microcomputer, a rechargeable secondary battery for operating the microcomputer, and a power receiving coil for receiving an electromotive force for charging the secondary battery. A charging device for use in a reel for electric power, the charging device comprising: an excitation coil for generating an electromotive force to be supplied to the power receiving coil by electromagnetic induction;
An excitation control circuit that performs excitation control of the excitation coil, wherein the excitation control of the excitation coil is induced by a change in current flowing through the power reception coil at the time of initial charging of the secondary battery and at the time of completion of charging. It is characterized in that the detection is performed based on a change in the current flowing through the excitation coil.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A double-axis fishing reel and a charging device therefor according to a first embodiment of the present invention are shown in FIGS.
It will be described based on. FIGS. 1 to 4 are views showing the appearance and internal structure of a fishing double-axis reel, and FIGS. 5 to 11 are views showing the appearance and internal structure of a charging device for a fishing double-axis reel.

First, an outline of a fishing double shaft reel will be described with reference to FIG.

As shown in FIG. 1, a spool 2 for winding a fishing line is rotatably supported on the reel body 1, and a reel sheet 6 for attaching the reel body 1 to a rod is fixed thereto. . The fishing line unwound from the spool 2 can be wound up by rotating and driving a manual handle 3 mounted on a rotating shaft of the spool 2.

The control box 4 is fixed to the reel body 1 by screws (not shown) or the like. The printed circuit board 40 shown in FIGS. 2 and 3 is stored in the storage space inside the control box 4. FIG. 2 shows a printed circuit board 4
0 shows the front surface, and FIG. 3 shows the back surface. On the printed circuit board 40, a liquid crystal display 41, a loop coil 4
2, an MPU 43 and a secondary battery 44 are mounted. M
The PU 43 calculates the payout length of the fishing line mainly based on a rotation signal corresponding to the rotation speed of the spool 2 created by a rotation detector (not shown). The liquid crystal display 41 is
The payout length of the fishing line and the like are displayed under the control of the MPU 43. The secondary battery 44 supplies power to the liquid crystal display 41, the MPU 43, and the like. The loop coil 42 generates an AC electromotive force for charging the secondary battery 44.

The control box body 45 shown in FIG.
It has a box-like shape having a rectangular opening (not shown) at the lower part, and the contour of the opening (not shown) matches the contour of the back cover (not shown). The control box 4 has a liquid-tight structure because electronic devices such as a printed circuit board 40 are housed inside the control box 4. An opening 46 is formed in the control box main body 45 at a position facing the liquid crystal display 41, and a display window 47 made of transparent resin is fitted in the opening 46. The numerical values and the like displayed on the liquid crystal display 41 are displayed on the display window 4
7, it can be seen from outside the control box 4.

Next, an outline of the charger will be described with reference to FIGS. FIG. 5 shows the charger main body case 50. The charger body case 50 has a substantially saddle shape, and an upper portion thereof has a substantially box-like shape. Charger body case 50
Is fitted to the control box 4 of the reel body 1 in a state of straddling the control box 4. In order to keep the charger main body case 50 fixed to the control box 4, the control box 4
With a lock screw 55.

A charger circuit board 54 mounted with a circuit for performing a function operation necessary for charging the secondary battery 44 inside the control box 4 is fixed inside the charger body case 50. On the charger circuit board 54, a charger battery 53 for supplying power necessary for charging the secondary battery 44 inside the control box 4 is detachably mounted. An opening is formed in the upper surface of the box-shaped portion of the charger main body case 50, and a part of the box-shaped surface is formed in a state where the battery lid 51 having a shape matching the contour of the opening covers the opening. ing. Since the battery cover 51 is attached to the charger body case 50 so as to be slidable in both directions A and B in the drawing, the battery 53 for the charger is removed from the inside of the charger body case 50 and the battery 53 for the charger is removed. The charger body 50 can be attached from outside.
A charging start switch 52 is provided on the upper surface of the charger body case 50, and charging is started by operating this switch.

FIG. 6 is a view of the charger circuit board 54 viewed from below vertically. In FIG. 6, on the charger circuit board 54, an exciting loop coil 56 used for generating an electromotive force in the power receiving loop coil 42 housed inside the control box 4 and a high frequency Circuit element 57 (representative number) for generating and driving
Is placed.

FIG. 7 is an internal sectional view of the charger main body case 50 when cut in the vertical direction along VII-VII in FIG. FIG. 8 is an internal cross-sectional view of the charger main body case 50 when it is similarly cut in the vertical direction along VIII-VIII in FIG. As shown in FIGS. 7 and 8, the charger circuit board 54 is supported horizontally, and a loop coil 56
Is attached. The position of the charger circuit board 54 is such that the surface formed by the loop coil 42 and the surface formed by the loop coil 56 when the charger body case 50 is fitted into the control box 4 The control box main body 45 and the member constituting the outer shell of the charger main body case 50 are opposed to each other with a distance therebetween. On the upper surface of the charger circuit board 54, two charger batteries 53 for supplying power required for charging are detachably supported by a battery support plus electrode plate 58 and a battery support minus electrode elastic member 59. Have been.

FIG. 4 shows a control circuit included in the control box 4 of the reel unit 1, and FIG. 9 shows a charger circuit included in the charger body case 50.

The control circuit shown in FIG. 4 supplies a charging voltage to the rechargeable battery 44, and when the rechargeable battery 44 is fully charged, when the rechargeable battery 44 is fully charged, and when the voltage level drops below a predetermined value due to discharging. Sometimes it has the function of notifying that.

A smoothing circuit including a rectifier diode D1, a smoothing capacitor C1, a constant voltage regulator REG, and a bypass capacitor C2 is connected to the loop coil 42 that induces an AC electromotive force due to a change in the magnetic field. A backflow prevention diode D2 is connected to the output of the circuit. The cathode of the backflow prevention diode D2 is M
It is connected to the power supply terminal Vdd of the PU 43 and to the secondary battery 44.

The voltage level detection circuit VDET is a circuit for detecting the voltage between the terminals of the secondary battery 44, and its output a and output b are connected to the input ports Pi2 and Pi3 of the MPU1, respectively. Output port Po1 of MPU43
Is connected to the base of an NPN transistor Q1 via a resistor R2. The emitter of the NPN transistor Q1 is connected to GND, and the collector is connected in series to the cathode of the light emitting diode LED via the resistor R1. The anode of the light emitting diode LED is connected to the cathode of the backflow prevention diode D2 and the Vdd terminal of the MPU 43.

The output port Po2 of the MPU 43 is connected to a liquid crystal display (LCD) 41 for displaying a fishing line payout length, a shelf position and the like. A push button switch group PSW is connected to the input ports Pi1 to Pin of the MPU 43.
1 to PSWn are connected respectively. The push button switches PSW1 to PSWn are used to switch the display data (shelf, bottom data, etc.) for fishing, to set the hull position, to set the water surface position, or to set the program ROM of the MPU 43 in advance in accordance with the thread type. Is used for, for example, a selection switching operation of the thread length calculation formula stored in the.

Next, the operation of the control circuit configured as described above will be described.

When the charge start switch 52 provided in the charger body case 50 is turned on, the secondary battery 44 starts charging. An AC electromotive force induced by a change in the magnetic field is induced in the loop coil 42, and an AC current flows through the rectifier diode D1. In the rectifier diode D1, an alternating current is converted into a direct current. The DC component of the current that has passed through the rectifier diode D1 is smoothed by the smoothing capacitor C1, and the DC voltage that has passed through the smoothing capacitor C1 is
The voltage is converted by the low voltage regulator REG so as to be suitable for the operation of the MPU 43, and the voltage level is stabilized. The DC voltage that has passed through the low-voltage regulator REG is stabilized by the bypass capacitor C2, and is supplied to the power supply terminal V of the MPU 43 through the backflow prevention diode D2.
dd. Thus, the power supply terminal Vd of the MPU 43
The secondary battery 44 connected between d and the ground is charged by the AC voltage induced in the loop coil 42.

When the charging is continued and the secondary battery 44 is fully charged, the voltage level detecting circuit 49 outputs the MPU 4 via the output a.
A charge completion signal is sent to the input port Pi2 of No. 3. MP
U43 outputs an intermittent pulse signal from the output port Po1 by recognizing the charge completion signal input to the input port Pi2. With the intermittent pulse signal from the output port Po1 of the MPU 43, the NPN transistor Q1 performs a switching operation, and the light emitting diode LED performs a blinking operation. This allows the operator to know that the charging is completed, and turns off the charging start switch 52 of the charger.
Set to FF.

When fishing is performed after charging, the secondary battery 44 supplies power to the MPU 43. MPU
When the secondary battery 44 is consumed (discharged) by supplying power to the power supply 43, the terminal voltage of the secondary battery 44 drops. Rechargeable battery 4
4 drops and reaches the minimum operation guarantee voltage of the MPU 43, the voltage level detection circuit VDET outputs the output terminal b.
Through the input port P of the MPU 43
Output to i3. The MPU 43 has an input port Pi3
And a battery consumption display signal for displaying the battery consumption on the liquid crystal display 41 is generated. The generated battery consumption display signal is output from Po2 to the liquid crystal display 41, and the liquid crystal display 41 displays the battery consumption and notifies the operator that the secondary battery has been consumed.

Next, the configuration of the charger circuit and the operation of each unit during charging will be described in order with reference to FIGS.

FIG. 9 is a block diagram showing a charger circuit. 9, a loop coil 56 is used to generate an electromotive force in the loop coil 42 in the control circuit of FIG. One end of the loop coil 56 is connected via a capacitor C11 to an output terminal of a first output drive circuit DRV1 for generating a square wave signal, and the other end is a rectangular wave having a polarity opposite to that of the output of the first output drive circuit DRV1. Is directly connected to the second output drive circuit DRV2 that generates The GND terminals of the first output drive circuit DRV1 and the second output drive circuit DRV2 are commonly connected, and are connected to one end of a current detection resistor RL1 for detecting a current flowing through the loop coil 56. Current detection resistor RL
The multiple ends of 1 are grounded. One end of the current detection resistor RL1 opposite to the ground is connected to the non-inverting input terminal (+) of the comparator circuit COMP via the low-pass filter FL1.
It is connected to the. The reference voltage source VREF is connected to the inverting input terminal (−) of the comparator circuit COMP1. The low-pass filter FL1 is provided to remove switching noise superimposed by the switching operation of the first output drive circuit DRV1 and the second output drive circuit DRV2.

In this embodiment, the low-pass filter FL
As 1, a π-type low-pass filter having a CR (capacitor, resistance) configuration shown in FIG. 11 is used, but not limited to the π-type low-pass filter, and a low-pass filter having another configuration may be used.

In FIG. 9, the comparator circuit COMP
Is connected to the set terminal S of the flip-flop circuit F / F. The output Q of the flip-flop circuit F / F which is switched according to the state of the set terminal S of the flip-flop circuit F / F is an oscillating timer circuit TIM
Are connected to the reset terminal RST. A charging battery 53 (two dry batteries) for supplying power required for oscillation is connected to a Vcc terminal of the timer circuit TIM.
Oscillator resistor Rf and capacitor Cf are connected in series and R
The midpoint between f and Cf is connected to the C / R terminal of the timer circuit TIM. Further, a power switch SW is connected between the timer circuit TIM and the charging battery 53 so that the operator can arbitrarily start and end charging. The output terminal Vo of the timer circuit TIM is directly connected to the input terminal G of the first output drive circuit DRV,
Further, it is connected to the input terminal G of the second output drive circuit DRV2 via an inverter circuit INV that makes the voltage have the opposite polarity.

Next, the operation of each unit when charging will be described.

The reset terminal RST of the timer circuit TIM
Is a control terminal for externally controlling the start and stop of oscillation of the timer circuit TIM. Reset terminal RS
When T is "H (high level)", the timer circuit TIM oscillates, and when "L (low level)", the timer circuit T
The IM stops oscillating. The output terminal Vo of the timer circuit TIM is a terminal for taking out the oscillation output of the timer circuit TIM. When the timer circuit TIM oscillates, the output terminal Vo
Generates a TTL level square wave.

The first output drive circuit DRV1 and the second output drive circuit DRV1
The output drive circuit DRV2 is, for example, a P-channel power MOSFET (Q1) as shown in FIG.
And the N-channel power MOSFET (Q2) are C-
This is a circuit connected by MOS. In this drive circuit, the positive power supply is connected to Vdd, and the negative power supply is connected to GND. G
Is an input terminal, and Vo is an output terminal. The output signal is inverted for each input.

As described above, the output terminal Vo of the timer circuit TIM is directly connected to the input terminal G of the first output drive circuit DRV1, and is connected to the input terminal G of the second output drive circuit DRV2 via the inverter circuit INV. Connected. Since the polarity of the signal output from the inverter circuit INV is inverted with respect to the signal input to the inverter circuit INV, the first output drive circuit DRV1
The polarity of the input is inverted with respect to the input of the second output drive circuit DRV2. Furthermore, the polarities of the output of the first output drive circuit DRV1 and the output of the second output drive circuit DRV2 are also inverted. Therefore, the loop coil 56
Is applied with an AC rectangular wave signal swinging substantially from GND to Vdd.

The comparator circuit COMP has a voltage value corresponding to a current detected by a current detection resistor RL1 commonly connected to the GND terminal of the first output drive circuit DRV1 and the GND terminal of the second output drive circuit DRV2, That is, the voltage value VLA2 corresponding to the current Io flowing through the loop coil 56: VLA2 = Io RL1 is compared with the voltage of the reference voltage source VREF connected to the inverting input terminal (-) of the comparator circuit COMP. When the voltage value VLA is higher than the reference voltage VREF, the output terminal of the comparator circuit COMP becomes “H”, and when the voltage value is VLA, the output terminal becomes “L”. That is, the output of the comparator circuit COMP outputs “H” while a current equal to or more than a certain load current flows through the loop coil 56, and outputs “L” when the current drops below the certain current. Thus, the reference voltage of the reference voltage source VREF is selected.

At the end of charging, the comparator circuit COMP
Of the flip-flop F /
F is set. At this time, since the flip-flop F / F outputs "H" to its output Q, the timer circuit TI
The oscillation operation of M is stopped. That is, the current detection resistor RL
The voltage corresponding to the current detected at 1 is the loop coil 4
The change in the current flowing through the loop coil 56 is detected by detecting the change in the current flowing through the loop coil 56 to detect the end of charging of the secondary battery 44 inside the control box 4 and charge the current flowing through the current detection resistor RL1. Stop charging operation on the unit side.

Regarding the initial state of the charging start / stop of the charger, when the power switch SW is turned on, the Reset connected to the reset terminal R of the flip-flop F / F is set.
Since the reset terminal R keeps “L” for a while by the initial reset circuit of
The output Q of / F becomes “H”. Therefore, the output Q of the flip-flop F / F does not become unstable even when the power is turned on.

As described above, the charging circuit starts driving the loop coil 56 at a high frequency at the same time when the switch SW is turned on by the operator, and starts charging. When the charging is completed, the oscillation is automatically stopped. Therefore, the charging operation is not performed continuously after the charging is completed, and the battery 53 is not unnecessarily consumed.

According to this charging method, even if the charger is set and the charging operation is performed, and the user forgets to remove the charger,
There is no possibility of overcharging the secondary battery 44 built in the control box, and the secondary battery is protected. Moreover, since the charging method is not direct charging to the secondary battery 44 via the conductor, the secondary battery 44 built in the control box 4 is not charged.
Can be completely sealed. MP in control box 4
By using the secondary battery 44 as a power source for the operation of the U43, it is possible to provide a fishing reel that does not require replacement when the battery is exhausted. In particular, since the charging method is an AC induction method, it is not necessary to use a connection electrode, and therefore, it is possible to have a structure in which the conductor is not exposed at all. Without any worries, safety and durability can be dramatically improved.

A control circuit for a double-axle fishing reel according to a second embodiment of the present invention will be described with reference to FIG.

In the first embodiment, when the charging is completed, the fact that the charging is completed is notified to the operator using the blinking of the light emitting diode LED, and the operator manually turns off the charger. The second embodiment differs from the first embodiment in that the voltage from the loop coil 42 is automatically cut off when charging is completed.

In FIG. 12, the light emitting diode LED, the resistors R1 and R2, and the transistor Q1 used in the first embodiment are not used. Instead, resistors R3, R4 and PNP transistor Q2 are used. An N-channel open drain type output port Po3 of the MPU 43 is connected to a base of the PNP transistor Q2 via a resistor R3. One end of a resistor R4 is connected to the base of the PNP transistor Q2.
4 is commonly connected to the emitter of the PNP transistor Q2, one end of the smoothing capacitor C1, and the cathode of the rectifier diode D1. The collector of the transistor Q2 is connected to the low voltage regulator REG.

When the MPU 43 receives the charging completion signal at the input port Pi2, a high level signal is output from the output port Po3 of the MPU 43. This high-level signal acts to raise the base of the transistor Q2 to the emitter potential by the resistor R4, thereby turning off the transistor Q2. When the transistor Q2 performs the OFF operation, the voltage from the loop coil 42 is cut off, and the charging of the secondary battery 44 is stopped.

The fishing double-axis reel and the power supply device for the fishing double-axis reel according to the present invention are not limited to the above-described embodiment, and various modifications and improvements can be made within the scope of the claims. . For example, the fishing reel to which the present invention is applied is not limited to a double-axis reel, but can be applied to other types of reels incorporating an MPU. Further, instead of using a light emitting diode as the notification means of the completion of charging, other notification means such as a sounding element such as a buzzer or a notification on a liquid crystal display may be used. In this embodiment, the rectifier diode D
1. Reverse current prevention diode D2, low voltage regulator R
The MPU 43 is connected to a smoothing circuit composed of EG, etc.
Although the secondary battery 44 is connected to the PU 43, the secondary battery 44 may be connected between the smoothing circuit and the MPU 43 for charging.

[0048]

According to the fishing reel of the present invention, a secondary battery is employed for operating the microcomputer, and the charging of the secondary battery depends on the contact of a conductor from outside the control box. Instead, since a power transmission system using an induced electromotive force from the outside is employed, the control box containing the microcomputer can be completely sealed, and a highly durable fishing reel can be provided. It also eliminates the need for battery replacement, and exposes conductors such as conductor connections that go to the outside of the charger case for connection from the charger to the secondary battery during charging, such as those found in ordinary chargers. It is not necessary to form a battery, and it is not necessary to provide a special storage part (battery holder etc.) for battery storage so that the resin control box can be opened temporarily for battery replacement. It is possible to secure perfect watertightness.

According to the fishing reel of the second aspect, the excitation coil is provided on the charger provided outside the control box,
Since the control box is provided with a power receiving coil, the winding surfaces of the excitation coil and the power receiving coil are brought into close contact with each other, so that the control box can be completely sealed without providing a connection part with conductors, allowing seawater to enter. Can be reliably prevented, and a fishing reel having excellent durability can be obtained. Since the charging method is not the direct charging of the battery by the conductor, the secondary battery contained in the control box can be completely sealed, and a fishing reel that does not require replacement when worn out can be provided. When charging,
There is no danger of electric shock, no risk of salt damage, etc.
The durability can be improved.

According to the fishing reel of the third aspect, by providing the notifying means, it is possible to notify the operator of the completion of charging, so that the charger is set on the fishing reel even though the charging is completed. It is possible to avoid a situation in which the user forgets to remove the charger while the battery is being left.

According to the fishing reel of the fourth aspect, even if the charger is set and the user forgets to remove it, there is no danger of overcharging the secondary battery, and the secondary battery can be protected. .

According to the fifth aspect of the present invention, there is provided an exciting coil for generating an electromotive force to be supplied to a power receiving coil built in a fishing reel by electromagnetic induction, and an exciting control circuit for controlling the exciting of the exciting coil. Since the excitation control of the excitation coil is performed based on the change in the current flowing through the excitation coil based on the change in the current flowing through the power reception coil when the secondary battery is initially charged and when the charging is completed, When the charging device starts charging, the secondary battery provided on the fishing reel starts charging, and when the charging is completed, the charger automatically stops the charging operation. Therefore, the power supply for charging is not consumed, and the secondary battery is not overcharged.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a double-axle fishing reel according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a printed circuit board housed in a control box fixed to a fishing dual-axle reel according to the first embodiment of the present invention.

FIG. 3 is an exemplary perspective view showing the back surface of the printed circuit board shown in FIG. 2;

FIG. 4 is a circuit block diagram of the inside of a control box fixed to the double-axle reel for fishing according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing a charging device for a fishing double-axle reel according to the first embodiment of the present invention.

FIG. 6 is a top view showing a charger circuit board housed in the charging device for a fishing dual-axle reel according to the first embodiment of the present invention.

FIG. 7 is a sectional view taken along the line VII-VII of FIG. 5;

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a block diagram of a charger circuit accommodated in the charging device for a fishing dual-axle reel according to the first embodiment of the present invention.

FIG. 10 is a circuit diagram of the output drive circuit of FIG. 9;

FIG. 11 is a circuit diagram of the low-pass filter FL1 of FIG.

FIG. 12 is a circuit block diagram showing the inside of a control box fixed to a fishing double-axle reel according to a second embodiment of the present invention.

FIG. 13 is an electric circuit diagram showing an outline of a control system of a conventional fishing reel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reel main body 4 Control box 42 Loop coil (power receiving coil) 43 Microcomputer (MPU) 44 Secondary battery 50 Charger main body case 56 Loop coil (excitation coil)

Claims (5)

[Claims] 1. A fishing reel having at least a microcomputer for calculating and processing a payout length of a line, wherein a rechargeable secondary battery for operating the microcomputer is built in the reel body, and an external of the reel body is provided. A fishing reel characterized in that the secondary battery is charged by using an electromotive voltage caused by electromagnetic induction from the fishing reel. 2. A fishing reel according to claim 1, further comprising a power receiving coil provided externally for receiving power from an excitation coil for generating an electromotive voltage by electromagnetic induction. 3. The fishing reel according to claim 1, further comprising an informing means for informing an operator of the completion of charging when the charging of the secondary battery is completed. 4. The fishing reel according to claim 1, wherein the charging operation of the secondary battery is automatically terminated when the charging of the secondary battery is completed. 5. A microcomputer, a rechargeable secondary battery for operating the microcomputer,
A charging device used for a fishing reel provided with a power receiving coil for receiving an electromotive force for charging the secondary battery, comprising: an excitation coil for generating an electromotive force to be supplied to the power receiving coil by electromagnetic induction; An excitation control circuit that controls excitation of the excitation coil, wherein the excitation control of the excitation coil is induced from a change in current flowing through the power reception coil at the time of initial charging of the secondary battery and at the time of completion of charging. Wherein the charging is performed based on a change in a current flowing through the excitation coil.