JP3892568B2 - Electric reel counter case - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a counter case, and more particularly to a counter case for an electric reel that is provided on an upper portion of a reel body of an electric reel and displays a device water depth and accommodates a reel control device for controlling the electric reel.
[0002]
[Prior art]
An electric reel that rotates the spool at the time of winding with an electric motor is often used, for example, when fishing from the top of a ship that fishes at a depth of 100 m or more. A counter case is mounted on the top of the reel body of this type of electric reel. The counter case is normally sealed in a watertight manner to prevent a short circuit of the internal electric circuit. In the counter case, a reel control circuit for displaying the water depth of the device and controlling the electric motor is housed. The reel control circuit is equipped with a microcomputer including a CPU, a memory, an I / O interface, and the like. The reel control circuit is connected with various functional elements (input / output elements) such as a liquid crystal display and its driving circuit, a water depth detection sensor, and a notification buzzer. Each of these connecting portions connected to the reel control circuit is also housed in a watertight sealed counter case.
[0003]
As a sensor for detecting water depth, for example, a reed switch that is turned on / off by a magnetic force is used. The reel body is provided with a magnet that rotates in conjunction with the spool, and water depth data is obtained in a non-contact manner by counting the magnet detection pulses by the reed switch with a reel control device.
For example, a circular piezoelectric element is used for the buzzer, and the piezoelectric element is arranged with a gap in a cylindrical space formed integrally with the lid member, so that the lid member is vibrated to generate an alarm sound. ing.
[0004]
Further, a motor drive circuit for driving the electric motor, for example, by PWM (pulse width modulation) is mounted on the side of the reel body of the electric reel. A drive element such as a FET (Field Effect Transistor) is mounted on the motor drive circuit. Based on the duty data output from the reel control circuit, the motor drive circuit shifts the electric motor by, for example, modulating the DC voltage pulse width with an FET.
[0005]
[Problems to be solved by the invention]
In a conventional electric reel in which a motor drive circuit is mounted on the side of the reel body, the side of the reel body swells and the size of the reel body increases. Thus, it is conceivable to store the motor drive circuit together with the reel control circuit in the counter case. If the motor drive circuit is housed in the counter case, the wiring between the reel control circuit and the motor drive circuit and its waterproof structure can be simplified and the reel body can be made smaller.
[0006]
However, since the motor drive circuit generates a larger amount of heat than the reel control circuit, when the motor drive circuit is housed in the counter case, it is important to take measures against heat dissipation of the counter case. Therefore, for example, it is conceivable to attach a lid member made of a conductive metal such as an aluminum alloy or a magnesium alloy to the counter case to seal the inside in a watertight manner, and to attach a motor drive circuit to the lid member. Conductive metals generally have a high heat transfer rate and excellent heat dissipation characteristics, so that heat dissipation performance is improved, and heat rise can be suppressed even when the motor drive circuit is housed in a counter case.
[0007]
However, when a conductive metal lid member is attached to the counter case, the magnetic lines of force generated from the magnet cannot pass through the conductive metal lid member, and the reed switch in the counter case accurately moves the magnet that rotates in conjunction with the spool. Cannot be detected.
Also, if the lid member made of aluminum alloy is attached to the counter case and the inside is sealed, the thickness of the lid member increases. Therefore, even if the piezoelectric element attached to the lid member is vibrated, the lid member is difficult to vibrate. The buzzer volume is reduced and the sound is difficult to be transmitted to the outside.
[0008]
SUMMARY OF THE INVENTION An object of the present invention is to enable a functional element to sufficiently function even when it is closed by a conductive metal lid member in a counter case in which a reel control device and a motor drive device are housed. .
Another object of the present invention is to enable accurate detection of magnetic lines of force from a magnet inside a counter case in which a reel control device and a motor drive device are housed, even when closed by a conductive metal lid member. There is.
[0009]
Another problem of the present invention is that in a counter case in which a reel control device and a motor drive device are housed, sound generated inside can be reliably transmitted to the outside even when closed with a conductive metal lid member. There is to do.
[0010]
[Means for Solving the Problems]
The counter case of the electric reel according to the first aspect of the present invention is provided on the upper portion of the reel body of the electric reel, displays a water depth of the device and controls the electric motor, and a motor drive for driving the electric motor. A counter case for an electric reel that houses the apparatus therein, and includes a case body, a first lid member, and a second lid member. The case main body is disposed at the upper part of the reel main body, has a space inside, and has a first opening on the lower surface. The first lid member is a member made of conductive metal having a second opening and detachably attached to the first opening of the case body. The second lid member is a synthetic resin member that is mounted in the second opening and in which the functional element of the reel control device is disposed on the space side.
[0011]
In this counter case, a second opening is provided in a first lid member made of conductive metal, and a second lid member made of synthetic resin is attached to the second opening. A functional element is disposed on the space side of the second lid member. Here, even if the first lid member is made of a conductive metal in order to enhance the heat dissipation performance, the functional element is arranged on the space side of the second lid member made of synthetic resin, so that the first lid member with respect to the functional member This can be done by eliminating the effect as much as possible. For this reason, even if the case is closed with the first lid member made of conductive metal, the functional element can sufficiently function.
[0012]
A counter case for an electric reel according to a second aspect of the present invention is the case according to the first aspect, wherein the first sealing is provided between the case main body and the first lid member to prevent liquid from entering the inside. A member, and a second sealing member that is mounted between the first lid member and the second lid member and prevents liquid from entering the inside from between the first lid member and the second lid member. In this case, it is difficult for the liquid to enter the case from the outside, and the inside of the case is sealed more tightly.
[0013]
An electric reel counter case according to a third aspect of the present invention is the case according to the first or second aspect, wherein the case main body is made of a synthetic resin, the first lid member is made of an aluminum alloy, and heat generated from the motor driving device is externally provided. It is a heat sink for discharging. In this case, since the aluminum alloy is inexpensive, easy to rust-proof, and has high thermal conductivity, the first lid member is made of another conductive metal even when the motor drive device is housed inside the case. It is less rusting and inexpensive, and heat dissipation performance is improved.
[0014]
An electric reel counter case according to a fourth aspect of the present invention is the case according to any one of the first to third aspects, wherein a reed switch is disposed as a functional element on the second lid member. In this case, since the reed switch is arranged on the space side of the second lid member made of synthetic resin, the magnetic lines of force from the magnet arranged outside are transmitted into the space through the second lid member and The magnet can be reliably detected.
[0015]
An electric reel counter case according to a fifth aspect of the present invention is the case according to any one of the first to third aspects, wherein the second lid member is a thinner member than the first lid member, and a piezoelectric element is mounted as a functional element there Has been. In this case, since the piezoelectric element is mounted on the thin second lid member made of synthetic resin, when the piezoelectric element vibrates, the second lid member also vibrates to reliably transmit the sound generated inside the case to the outside. it can.
[0016]
A counter case according to a sixth aspect of the present invention is the case according to any one of the first to fifth aspects, wherein the circuit board of the reel control device and the circuit board of the motor driving device are mounted on the first lid member. In this case, since all the devices housed in the counter case are mounted on the first lid member, various tests can be performed with two circuit boards mounted on the first lid member. And only the 1st cover member with which the circuit board which passed the test was mounted | worn can be mounted | worn with a case main body. For this reason, the number of assembling steps can be reduced, and the test failure product can be easily corrected, thereby reducing the cost.
[0017]
A counter case according to a seventh aspect of the present invention is the case according to any one of the first to fifth aspects, wherein the case main body is mounted with the circuit board of the reel control device, and the first lid member is mounted with the circuit board of the motor driving device. The In this case, since the circuit board is mounted on separate members, the degree of freedom of the mounting position is increased, and it is more efficient by mounting the circuit board of the motor driving device with a large amount of heat generation on the first lid member. The heat loss of the reel control device can be prevented.
[0018]
A counter case according to an eighth aspect of the present invention is the case according to any one of the first to seventh aspects, wherein the reel unit has a pair of side plates and a plurality of connecting members that connect the side plates, and the first lid member includes a plurality of first lid members. It is fixed to one of the connecting members. In this case, since the counter case is mounted on the upper surface of the connecting member, the mounting strength is higher than when the counter case is fixed to the side plate of the reel body.
[0019]
The counter case according to a ninth aspect of the present invention is the case according to any one of the first to eighth aspects, wherein the reel unit has a pair of side plates and a plurality of connecting members for connecting the side plates, and the first lid member is the side plate. It is fixed to. In this case, since it is fixed to the side plate of the reel body, the contact area is increased and the heat dissipation performance is improved.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
An electric reel that employs an embodiment of the present invention shown in FIG. 1 is a reel having a water depth display portion that displays the water depth according to the thread feeding length. The electric reel includes a reel body 1 mounted on the fishing rod R, a spool rotation handle 2 disposed on the side of the reel body 1, and a drag adjusting star drag disposed on the reel body 1 side of the handle 2. 3 is mainly provided.
[0021]
The reel body 1 has a frame 7 composed of a pair of left and right side plates 7 a and 7 b and a plurality of connecting members 8 that connect them, and left and right side covers 9 a and 9 b that cover the left and right sides of the frame 7. A rotation shaft of the handle 2 is rotatably supported by the side cover 9b on the handle 2 side (right side in FIG. 1), and an external power source PS is connected to the side cover 9a opposite to the handle 2 (left side in FIG. 1). A connector 19 for connecting a power cord 18 is provided.
[0022]
A spool 10 connected to the handle 2 is rotatably supported inside the reel body 1. Inside the spool 10, a direct-current drive motor 12 that rotates the spool 10 in the yarn winding direction is disposed. An operation lever 11 of a clutch (not shown) for turning on and off the drive transmission between the handle 2 and the motor 12 and the spool 10 is disposed on the handle side surface of the reel body 1. When this clutch is turned on, the yarn unwinding operation can be stopped during the unwinding of the yarn due to its own weight.
[0023]
As shown in FIGS. 2 to 5, the reel body 1 has a level wind mechanism 13 that operates in conjunction with the spool 10, a magnet wheel 14 that rotates in conjunction with the spool 10, and a handle 2. A transmission mechanism (not shown) for transmitting to the spool 10 is provided.
The level wind mechanism 13 includes a screw shaft 15 disposed parallel to the spool 10 in front of the spool 10 (left side in FIG. 2), a fishing line guide 16 that engages with the screw shaft 15, and a guide tube that guides the fishing line guide 16. 17. The screw shaft 15 has a spiral groove (not shown) intersecting the surface. The screw shaft 15 is connected to the spool 10 by a gear mechanism (not shown). The fishing line guide 16 includes a guide body 16a, an engaging member 16b that is disposed in a direction perpendicular to the screw shaft 15 at a lower portion of the guide body 16a, and an upper end that engages with the spiral groove, and is disposed at the front and rear of the guide body 16a. And a hard ring 16c made of ceramic for guiding the fishing line. In the guide body 16a, the screw shaft 15 passes through the center portion, and the guide cylinder 17 passes through the periphery thereof. The guide cylinder 17 is a cylindrical member whose lower part is opened in a U-shape, and is arranged so as to surround the screw shaft 15 between the side plates 7a and 7b.
[0024]
As shown in FIGS. 3 and 5, the magnet wheel 14 is rotatably supported on the side plate 7 a of the reel body 1. The magnet wheel 14 is formed with a gear portion 14a and a magnet portion 14b adjacent to the gear portion 14a. Two magnets 14c are mounted on the magnet portion 14b with an interval of 180 degrees. The gear portion 14 a meshes with the spool gear 10 a formed on the spool 10 via the intermediate gear 37. As a result, the magnet wheel 14 rotates in the same direction as the spool 10 in conjunction with the spool 10.
[0025]
A counter case 4 is fixed to the top of the reel body 1 as shown in FIGS. As shown in FIGS. 3 to 5, the counter case 4 is arranged at the upper part of the reel main body 1, the case main body 20 having the display window 20 a on the upper surface and the first opening 20 b on the lower surface, respectively, It has the bottom cover member 21 which obstruct | occludes 1 opening 20b.
[0026]
The case main body 20 is a synthetic resin molded product such as ABS (acrylonitrile-butadiene-styrene) resin, for example, and has a smooth outer peripheral surface that is continuously curved at the top of the reel main body 1. The display window 20a is closed by a transparent resin member 22 made of transparent resin . A rectangular tube-shaped wall portion 20c capable of forming a box-shaped space is formed inside the case body 20, and the bottom portion is a first opening 20b.
[0027]
The bottom lid member 21 is a plate-like member obtained by molding a conductive metal such as an aluminum alloy, and is attached to the case body 20 with screws. A tongue-shaped mounting piece 21 d that protrudes downward is formed at the rear of the bottom lid member 21. The counter case 4 is attached to the left and right side plates 7a and 7b with screws attached to the attachment piece 21d. Further, the bottom portion of the bottom cover member 21 is placed on the connecting member 8, and the counter case 4 is attached to the connecting member 8 with screws at two places. In this way, by attaching the counter case 4 to the connecting member 8 of the reel body 1, the counter case 4 can be firmly attached to the reel body 1, and even if the reel is accidentally dropped, Equipment is hard to damage. Moreover, since it is also attached to the side plates 7 a and 7 b of the reel body 1, the heat inside the counter case 4 easily escapes to the reel body 1.
[0028]
The bottom cover member 21 has second and third openings 21a and 21b formed with a space left and right. A projecting portion 21 c that projects downward is formed in a region between the openings 21 a and 21 b of the bottom lid member 21. As shown in FIG. 1, the second opening 21 a is a circular opening and is closed by a circular lid member 23. The third opening 21 b is a rectangular opening formed at a position facing the magnet wheel 14 and is closed by a rectangular lid member 24. Both the lid members 23 and 24 are synthetic resin members, and are attached to the bottom lid member 21 from the inside by screws. As shown in FIGS. 3 and 4, the center portion of the upper surface of the lid member 23 is slightly recessed and thin.
[0029]
Between the bottom lid member 21 and the first opening 20b of the case main body 20, for example, a rubber packing 25 is mounted to prevent water from entering the counter case 4 from between the two. Further, packings 26 and 27 are mounted between the second opening 21a and the third opening 21b and the lid members 23 and 24 for the same purpose. The inside of the counter case 4 is sealed watertight with respect to the outside by these packings 25 to 27.
[0030]
On the upper surface of the counter case 4, as shown in FIG. 1, a water depth display comprising a liquid crystal display for displaying the water depth and shelf position of the device on the basis of two criteria, from the water surface and from the bottom, via a transparent resin member 22. The operation key unit 6 is provided around the water depth display unit 5. The operation key unit 6 includes a shift key SK and a power key PW arranged vertically on the right side of FIG. 1 of the water depth display unit 5, and a bottom memo key SM and a mode key MD arranged vertically on the right side. Yes.
[0031]
As shown in FIG. 2, a water depth display unit 5 and a reel control unit 30 connected to the water depth display unit 5 and the operation key unit 6 are arranged in the upper part of the counter case 4. The reel control unit 30 includes a circuit board 36 for connecting a plurality of electrical elements 35 including a microcomputer including a CPU, RAM, ROM, I / O interface and the like disposed in the counter case 4 and the plurality of electrical elements 35. Including. The reel control unit 30 executes various control operations such as display control of the water depth display unit 5 and motor drive control according to the control program.
[0032]
A PWM drive circuit 31 that performs PWM drive of the motor 12 is disposed in the lower part of the counter case 4. The PWM drive circuit 31 is disposed in the protruding portion 21 c of the bottom cover member 21. The PWM drive circuit 31 includes a plurality of electric elements 33 including FETs 32 as drive elements for driving the motor 12, and a circuit board 34 for connecting the plurality of electric elements 33. The PWM drive circuit 31 is connected to the reel control unit 30 by wiring. The FET 32 is screwed to the protruding portion 21 c of the bottom lid member 21 and is cooled by the bottom lid member 21. The PWM drive circuit 31 variably drives the motor 12 with the duty ratio controlled by the reel control unit 30.
[0033]
The circuit board 36 of the reel control unit 30 is fixed to the bottom lid member 21 with screws, and the circuit board 34 of the PWM drive circuit 31 is fixed to the bottom lid member 21 together with the lid member 24 with screws. In this case, since all the circuit boards 34 and 36 housed in the counter case 4 are mounted on the bottom cover member 21, various tests are performed with the two circuit boards 34 and 36 mounted on the bottom cover member 21. Can be done. Only the bottom lid member 21 on which the circuit board that has passed the test is mounted can be mounted on the case body 20. For this reason, the number of assembling steps can be reduced, and the test failure product can be easily corrected, thereby reducing the cost.
[0034]
Further, as shown in FIG. 3, a buzzer 40 for outputting various alarm sounds and a spool sensor 41 for detecting the rotation direction and speed of the spool are also arranged in the lower part of the counter case 4.
As shown in FIGS. 3 and 4, the buzzer 40 is composed of a piezoelectric element 40 a mounted on the top surface of the lid member 23, and a slight gap is formed between the buzzer 40 and the lid member 23 having a concave top surface. The buzzer 40 is connected to the reel control unit 30, and vibrates the lid member 23 through the space formed in the gap by vibrating the piezoelectric element 40a, and transmits sound to the outside. Here, since the thin lid member 23 made of synthetic resin is provided on the bottom lid member 21 and the piezoelectric element 40a is disposed there, the buzzer 40 is surely secured even when the counter case 4 is closed by the bottom lid member 21 made of conductive metal. To work.
[0035]
The spool sensor 41 is composed of two reed switches 41a and 41b arranged side by side in the front-rear direction. The reed switches 41 a and 41 b are connected to the reel control unit 30 and are disposed facing the lid member 24. The reed switches 41a and 41b detect the two magnets 14c attached to the magnet wheel 14. The number of rotations of the reel can be detected by counting the detection pulses by the reel control unit 30. Further, the rotation direction of the spool 10 can be detected depending on which of the reed switches 41a and 41b has issued the detection pulse first. Here, since the reed switches 41a and 41b are disposed on the cover member 24 made of synthetic resin, the magnet 14c of the magnet wheel 14 can be reliably detected without being affected by the bottom cover member 21 made of conductive metal.
[0036]
In the electric reel having such a configuration, when the fishing line is fed out, the clutch is turned off by the operation lever 11, the spool 10 is freely rotated, and the fishing line is fed out by the weight of the weight attached to the fishing line. When the fishing line is fed out, the spool 10 is rotated, and the water depth display of the water depth display unit 5 is changed according to the feeding amount by the detection pulse of the spool sensor 41. When the fishing line is fed out, the rotation of the spool 10 is transmitted to the screw shaft 15, and the screw shaft 15 rotates to reciprocate the fishing line guide 16 along the spool 10. When the device reaches the shelf, the clutch is turned on by the operation lever 11 to stop feeding the fishing line.
[0037]
When the fish hits, the power line PB and the shift key SK arranged on the operation key unit 6 are operated to wind up the fishing line. When the power button PB is operated, the duty ratio of the PWM drive circuit 31 is controlled until the reel control unit 30 reaches a desired rotation speed in accordance with the operation, and the PWM drive circuit 31 varies the motor 12 with the controlled duty ratio. To drive. Further, when the shift key SK is operated, the motor 12 can be increased or decreased. As a result, the motor 12 rises to a desired rotation speed and maintains that rotation speed. Also during the winding, the rotation of the spool 10 is transmitted to the screw shaft 15, and the screw shaft 15 rotates to reciprocate the fishing line guide 16 along the spool 10. As a result, the fishing line is wound almost uniformly on the spool. Further, the FET 32 generates heat in accordance with the load acting at the time of winding, but the air flow generated by the rotation of the spool 10 hits the bottom lid member 21 and cools the bottom lid member 21. As a result, the FET 32 attached to the bottom lid member 21 is easily and reliably cooled.
[0038]
Here, since the water depth display unit 5, the reel control unit 30, the PWM drive circuit 31, and various functional elements such as sensors and buzzers are housed in the counter case 4, all of these wirings can be performed in the counter case 4 and internally. This eliminates the need for waterproofing the wiring and facilitates wiring work.
In addition, since the bottom lid member 21 is made of a conductive metal to increase the cooling capacity, elements such as the power control FET 32 can be easily cooled. In addition, since the two lid members 23 and 24 are mounted on the bottom lid member 21 and the buzzer 40 and the spool sensor 41 are disposed at the portions, the functions of these elements are exhibited without being affected by the bottom lid member 21. can do.
[0039]
[Other Embodiments]
(A) In the said embodiment, although the aluminum alloy was illustrated as a material of the bottom cover member 21, the material of the bottom cover member 21 may be other conductive metals, such as a magnesium alloy.
(B) In the above embodiment, the ABS resin is exemplified as the material of the case body 20, but the material of the case body 20 may be another synthetic resin such as 66 nylon.
[0040]
(C) In the above embodiment, the two circuit boards 34 and 36 are attached to the bottom cover member 21, but the circuit board 36 of the reel control unit 30 may be attached to the case body 20. In this case, since the circuit board is mounted on separate members, the degree of freedom of the mounting position is increased. Further, by mounting the circuit board of the motor driving device with a large amount of heat generation on the bottom cover member 21, heat can be radiated more efficiently, and heat loss of the reel control unit 30 can be prevented.
[0041]
【The invention's effect】
According to the present invention, even if the first lid member is made of a conductive metal in order to improve the heat dissipation performance, the functional element is disposed on the space side of the second lid member made of synthetic resin, so that the first against the functional member. It is possible to eliminate the influence of the lid member as much as possible. For this reason, even if the case is closed with the first lid member made of conductive metal, the functional element can sufficiently function.
[Brief description of the drawings]
FIG. 1 is a plan view of an electric reel adopting an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view thereof.
FIG. 3 is a cross-sectional view of a counter case.
4 is a cross-sectional view taken along line IV-IV in FIG.
5 is a VV cross-sectional view of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Reel main body 4 Counter case 5 Water depth display part 10 Spool 12 Motor 20 Case main body 20b 1st opening 21 Bottom cover member 21a 2nd opening 21b 3rd opening 23,24 Cover members 25, 26, 27 Packing 30 Reel control part 31 PWM Drive circuit 40 Buzzer 40a Piezoelectric element 41 Spool sensors 41a, 41b Reed switch

Claims (9)

An electric reel provided in an upper portion of the reel body of the electric reel, which stores a reel control device for displaying a water depth of the device and controlling the electric motor, and a motor driving device for driving the electric motor. Counter case,
A case main body disposed at the top of the reel main body, having a space inside, and having a first opening on the lower surface;
A first lid member made of conductive metal having a second opening and detachably attached to the first opening of the case body;
A second lid member made of synthetic resin, which is mounted in the second opening and in which the functional element of the reel control device is disposed on the space side;
Electric reel counter case. A first sealing member that is mounted between the case body and the first lid member and prevents liquid from entering inside from between the case main body and the first lid member, and is mounted between the first lid member and the second lid member. The counter case of the electric reel according to claim 1, further comprising a second sealing member for preventing liquid from entering the inside from the inside. 3. The electric motor according to claim 1, wherein the case body is made of a synthetic resin, the first lid member is made of an aluminum alloy, and is a heat radiating plate for releasing heat generated from the motor driving device to the outside. Reel counter case. The counter case of the electric reel according to any one of claims 1 to 3, wherein a reed switch is disposed as the functional element on the second lid member. The counter case of the electric reel according to any one of claims 1 to 3, wherein the second lid member is a member thinner than the first lid member, and a piezoelectric element is mounted thereon as the functional element. 6. The electric reel counter case according to claim 1, wherein a circuit board of the reel control device and a circuit board of the motor driving device are mounted on the first lid member. 7. 6. The electric reel counter according to claim 1, wherein a circuit board of the reel control device is attached to the case body, and a circuit board of the motor driving device is attached to the first lid member. Case. The reel body includes a pair of side plates and a plurality of connecting members that connect the side plates, and the first lid member is fixed to one of the plurality of connecting members. An electric reel counter case according to any one of the above. 9. The electric motor according to claim 1, wherein the reel body includes a pair of side plates and a plurality of connecting members that connect the side plates, and the first lid member is fixed to the side plates. Reel counter case.

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