JP4131173B2 - Outboard motor electrical equipment mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical component mounting structure for an outboard motor, and more particularly to an electrical component suitable for cooling electrical components such as a rectifier.
[0002]
[Prior art]
In an outboard motor, intake / exhaust devices and electrical components are attached around the engine, and the whole is covered with an engine cover. Since the electrical component itself is a heating element and is likely to become high temperature because the heat of the engine is transmitted, sufficient cooling is required to maintain its function normally.
[0003]
As a structure for cooling an electrical component, for example, in Patent Document 1, a boss portion is formed on a cover for closing a cooling water jacket, and an electrical component having air cooling fins formed on the upper surface and the lower surface is attached to the boss portion. Is disclosed.
[0004]
Patent Document 2 discloses a structure in which an electrical component installation part is integrally formed on a water jacket lid member.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 8-100671
[Patent Document 2]
JP 2000-186567 A
[0006]
[Problems to be solved by the invention]
However, in the structure disclosed in Patent Document 1 described above, the heat transfer path between the electrical component and the cooling water is long, and cooling by the cooling water jacket is not sufficient, and air cooling fins are required. Is difficult.
[0007]
In the structures disclosed in Patent Documents 1 and 2, since the boss part and the installation part for attaching the electrical component are integrally formed on the cover and lid member of the water jacket, the type of electrical component attached thereto And the number will be decided. Therefore, it is difficult to cope with the case where the electrical component is changed to another type or the number of electrical components is increased or decreased, and the versatility is poor. In particular, an outboard motor is a product that is manufactured and sold without specifying its use or hull, unlike an engine of a motorcycle or an automobile, and the type and number of electrical components can be easily changed. desired.
[0008]
The present invention has been made in view of such circumstances, and an object thereof is to provide an electrical component mounting structure for an outboard motor that is excellent in cooling effect, compact, and highly versatile.
[0009]
[Means for Solving the Problems]
The electrical equipment mounting structure for an outboard motor of the present invention is an electrical equipment mounting structure for an outboard motor equipped with a water jacket for engine cooling, The water jacket is configured by closing the concave portion with a lid member, while the lid member has a vertically long plate shape, and an opening is formed in the upper part in the longitudinal direction. Close the opening with the electrical component case where the electrical components are installed. In addition, a through hole for immersing the sacrificial metal in the cooling water in the water jacket is formed below the opening, and the through hole is closed with a sacrificial metal support to which the sacrificial metal is attached. Characterized by points.
[0010]
Another feature of the electric equipment mounting structure for an outboard motor according to the present invention is that the water jacket is for cooling an exhaust passage disposed around the exhaust passage of the engine.
[0011]
Another feature of the electric equipment mounting structure for an outboard motor of the present invention is that the water jacket is for cooling a crankcase disposed in the crankcase of the engine.
[0012]
Another feature of the electric component mounting structure for an outboard motor of the present invention is that a plurality of the openings are formed in the lid member.
[0013]
Another feature of the electric equipment mounting structure for an outboard motor of the present invention is that a sacrificial metal immersed in cooling water in the water jacket can be removably attached to the lid member. .
[0014]
Another feature of the electric component mounting structure for an outboard motor of the present invention is that a temperature sensor is installed in the electric component case together with the electric component.
[0015]
Another feature of the outboard motor electrical component mounting structure according to the present invention is that the case where the electrical component is installed is integrally formed with a radiator that is immersed in the cooling water in the water jacket. It is in.
[0016]
Another feature of the outboard motor electrical equipment mounting structure according to the present invention is that the electrical equipment case is substantially box-shaped, and the electrical equipment installed at the bottom thereof is covered with a waterproof resin material. It is in.
[0017]
Another feature of the outboard motor electrical component mounting structure of the present invention is that the electrical component case is provided with a coupler connected to the electrical component.
[0018]
Another feature of the electric equipment mounting structure for an outboard motor according to the present invention is that at least two of the plurality of openings are respectively closed by an electric equipment case in which a rectifier is installed, and the rectifiers are connected to each other. It is in the point made into another system.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an outboard motor electrical component mounting structure according to the present invention will be described with reference to the drawings.
[0020]
FIG. 1 is a side view showing an example of the overall configuration of the outboard motor 1, FIG. 2 is a plan view of an engine block A arranged on the upper portion of the outboard motor 1, and FIG. 3 is a plan view of an engine 2 included in the engine block A. is there. In FIG. 1, main components are shown, and some of the illustrations are omitted. In these drawings, the arrow Fr indicates the front side of the outboard motor 1 (the forward direction of the hull equipped with the outboard motor 1), and the arrow Rr indicates the rear side of the outboard motor 1 (the hull equipped with the outboard motor 1). Reversing direction) side. In this case, the outboard motor 1 is fixed to the rear plate P of the hull on the front side thereof.
[0021]
In the schematic configuration of the outboard motor 1, an engine block A having an engine 2 disposed at the top, a drive shaft housing B having a drive shaft 3 for transmitting the output of the engine 2 to the propeller side, and driving of the drive shaft 3 A gear housing C having a drive unit 5 that rotationally drives the propeller 4 by force is arranged in order up and down. Covers 6a, 6b, and 6c as outer shells are attached to the engine block A, the drive shaft housing B, and the gear housing C, respectively. By smoothly joining these covers 6a, 6b and 6c to each other, the outboard motor 1 is covered with the cover 6 so as to have a sense of unity as a whole. It has a general oval shape (see FIG. 2). Inside, an intake system, an exhaust system, or a lubrication system is arranged.
[0022]
In this example, a V-type 6-cylinder (so-called “V6”) engine is adopted as the engine 2, and as shown in FIG. 2, the cylinder bore axis S of each cylinder in the left and right cylinder banks intersects to form a V-shape. And it arrange | positions so that the point side of the V-shape may face front Fr. In this case, the engine 2 is mounted and supported by the engine base 8 so that the crankshaft 7 of the engine 2 is vertically placed so as to face the vertical direction.
[0023]
A pair of left and right mounts 109 and 110 are disposed on the front edge of the engine base 8 and the front edge of the drive shaft housing B, respectively, and the engine block A, the drive shaft housing B, and the gears are disposed via these mounts 109 and 110. The housing C is supported so as to be integrally rotatable around a support shaft 10 set on the swivel bracket 9. Clamp brackets 11 are provided on both the left and right sides of the swivel bracket 9, and are fixed to the rear plate P of the hull via the clamp brackets 11. The clamp bracket 11 is supported so as to be rotatable around a tilt shaft 12 set in the left-right direction.
[0024]
A cooling water tank 13 adjacent to the rear side of the drive shaft 3 is mounted on the upper portion of the drive shaft housing B, and an oil pan 14 for lubricating oil is mounted on the rear side thereof. The A cooling water pipe 15 is suspended from the bottom of the water tank 13, and this cooling water pipe 15 is connected to a water supply pipe 119 for supplying water taken from a water intake port 118 provided in the gear housing C. A cooling water pump 16 driven by the drive shaft 3 is attached to a connection portion between the cooling water pipe 15 and the water supply pipe 119. The cooling water pump 20 takes in water from the outside of the outboard motor 1 through a filter 121 attached to the water intake 118 and feeds the water into the cooling water pipe 15 and further into the water tank 13.
[0025]
In the gear housing C, the drive shaft 3 extending downward from the drive shaft housing B is gear-coupled to the drive unit 5. The propeller shaft 122 extending rearward from the drive unit 5 orthogonal to the drive shaft 3 is rotatably supported in the gear housing C by, for example, a ball bearing 123 or a needle bearing 124, and the propeller 4 is fixed to the rear end thereof.
[0026]
The drive unit 5 includes a forward (forward) gear 125 and a reverse (reverse) gear 126 that are loosely fitted to the propeller shaft 122 and rotatably supported. These gears 125 and 126 are arranged at the lower end of the drive shaft 3. It always meshes with the provided drive gear 127. In this example, the forward gear 125 is disposed on the hull front Fr side, the reverse gear 126 is disposed on the hull rear Rr side, and a clutch dog 128 is disposed on these gears 125, 126. The clutch dog 128 is selectively connected to the forward gear 125 and the reverse gear 126, and the driving force of the drive shaft 3 is transmitted to the propeller shaft 122 by this operation.
[0027]
In this case, the clutch rod 129 extending downward from the vicinity of the engine 2 of the engine block A is connected to the shift rod 130 in the vicinity of the joint between the drive shaft housing B and the gear housing C. The clutch rod 129 can be operated by operating the shift lever by the operator. The shift rod 130 operates the clutch dog 128 via the shift cam 131 or the push rod 132 constituting the clutch mechanism, thereby causing the propeller shaft 122 to rotate forward or reverse.
[0028]
In the engine block A, as shown in FIGS. 2 and 3, in the engine block A, in this example, six cylinders are arranged in order along the V shape alternately in the vertical direction, and in each cylinder, the crankcase 18, The cylinder block 19, the cylinder head 20, and the cylinder head cover 21 are disposed and coupled. In this way, in the V6 engine in which each cylinder expands to the left and right (plan view) with respect to the crankshaft 7, a V-type cylinder bank is formed by the left and right three cylinders. An intake manifold 22 is disposed in the cylinder bank.
[0029]
As shown in FIG. 3, a cylinder bore 23 is formed for each cylinder inside the cylinder block 19, and a piston 24 is fitted therein so as to be able to reciprocate. The piston 24 is connected to the crankpin 7 a of the crankshaft 7 via a connecting rod 25, whereby the reciprocating motion of the piston 24 in the cylinder bore 23 is converted into the rotational motion of the crankshaft 7, and the drive shaft 3 is output as the output of the engine 2. Is transmitted to.
[0030]
The cylinder head 20 is formed with a combustion chamber 26 aligned with the cylinder bore 23, and an intake port 27 and an exhaust port 28 communicating with the combustion chamber 26, respectively. The intake port 27 opens to the inside of the V shape of the cylinder bank described above, and the communication portion with the combustion chamber 26 is controlled to open and close by the intake valve 29. In this case, the intake valve 29 is driven by a cam 31 provided on the camshaft 30. The exhaust port 28 opens to the outside of the V shape of the cylinder bank, and the communication portion with the combustion chamber 26 is controlled to open and close by the exhaust valve 32. In this case, the exhaust valve 32 is driven by a cam 34 provided on the camshaft 33. In this embodiment, each cylinder may be four valves each having two valves on the intake side and the exhaust side.
[0031]
As a cam or camshaft drive mechanism, a cam chain 150 is mounted between a sprocket provided at the lower end of two camshafts 30 extending in the vertical direction and a sprocket provided at the upper end of the driveshaft 3. The drive shaft 3 and the camshaft 30 are connected. In this case, the camshafts 30 and 33 are connected to each other via a chain or the like on the intake side and the exhaust side, respectively. Further, the upper end portion of the drive shaft 3 and the lower end portion of the crankshaft 7 are connected via a reduction gear 35. Therefore, the camshaft 30 and the camshaft 33 are utilized by using the power of the driveshaft 3 driven by the crankshaft 7. The plurality of cams 31 and 34 can be driven synchronously.
[0032]
A spark plug 36 is attached to the top of the combustion chamber 26 of each cylinder, and an intake passage of the intake manifold 22 is connected to each intake port 27. Fuel is injected from the injector 37 toward the deep portion of each intake port 27. Then, the combustion gas exploded and burned in the cylinder is discharged from the exhaust port 28 to an exhaust passage 38 described later.
[0033]
In each of the left and right three cylinders of the V6 engine, each exhaust port 28 is connected to an exhaust passage 38 provided outside the cylinder bore 23 of the cylinder block 19. As shown in FIG. 4, the exhaust passage 38 is formed in the vertical direction, and collects exhaust gas from each exhaust port 28. The exhaust gas is guided to the lower side of the engine 2 through the exhaust passage 38 and is discharged into the water through the exhaust passage formed in the drive shaft housing B to the gear housing C.
[0034]
As shown in FIG. 3, a cooling water jacket 39 is provided along the vertical direction of the engine block A, particularly around the cylinder bore 23 and the exhaust system, that is, the exhaust port 28 to the exhaust passage 38. The cooling water flows through the water jacket 39. In this case, water is sent to the water tank 13 by the above-described cooling water pump 16, and water is sent from the water tank 13 to the water jacket 39.
[0035]
1 flows through the water jacket 39 from the top of the engine block A through the drainage pipe 40 and passes through the drainage passage formed in the drive shaft housing B to the gear housing C. It is discharged into the water. In the cooling system configured as described above, as shown in FIG. 3, the drain pipe 40 is accommodated in a compact space in the V-shaped inner space of the cylinder bank. The drain pipe 40 is provided with a thermostat 157 to control the flow of cooling water.
[0036]
Further, an oil pump 158 is attached to the lower part of the engine block A as shown in FIG. An oil suction pipe 159 suspended in the oil pan 14 is connected to the oil suction port of the oil pump 158, and an oil supply pipe is connected to the oil discharge port. In this lubrication system, the oil in the oil pan 4 is sucked up by the oil pump 158, and the oil is supplied from the upper part of the engine block A through the oil supply pipe. The lubricating oil lubricates the main lubrication points in the engine block A, and then is collected in the oil pan 14.
[0037]
In the intake system, a collector 41 is provided behind the center of the engine 2 via an intake manifold 22. The collector 41 typically has a sealed structure in which a collector main body 42 formed of a synthetic resin material and a metal (typically aluminum alloy) cover 43 covering the collector main body 42 are closed. Air is taken in from throttle bodies 44 provided on the left and right sides of the upper part. The air taken in from the throttle body 44 is switched to a high-speed passage and a low-speed passage by a variable intake length system provided in the collector 41.
[0038]
A butterfly throttle valve 45 is mounted on the throttle body 44, and the opening degree of the throttle valve 45 is controlled by a control lever 46 as shown in FIG. The throttle body 44 opens into a silencer 47 mounted on the upper rear side of the engine block A, and takes in air taken from outside the outboard motor 1 through the silencer 47 as indicated by an arrow E.
[0039]
Hereinafter, the mounting structure of the regulator-equipped rectifier corresponding to the electrical component according to the present invention will be described.
[0040]
First, as shown in FIG. 5, the upper end of the crankshaft 7 protrudes from the engine 2, and a flywheel (also serves as a magnet rotor) 48 is provided so as to be integrally rotatable. A magneto type power generator is disposed inside the flywheel 48. That is, a plurality of radially extending poles 49 are fixed on the engine 2 side, and a stator coil 50 is provided on these poles 49. On the other hand, a magnet 51 is disposed on the inner peripheral wall of the flywheel 48 (position facing the stator coil 50). Then, the flywheel 48 is rotated along with the rotation of the crankshaft 7 to generate AC electricity in the stator coil 50. The generated AC electricity is rectified (converted to DC) by a rectifier and used for power supply of an electric product and battery charging. When not consuming electricity, the battery is charged, and when the battery voltage exceeds the set voltage of the regulator due to full charge, it is converted into thermal energy and discarded.
[0041]
The regulator-equipped rectifier that performs the above function is attached to the lid member 52 of the water jacket 39 a provided mainly for the purpose of cooling the exhaust passage 38 of the water jacket 39. As shown in FIG. 5, a concave portion 53 constituting a water jacket 39 a is formed on the side surface of the cylinder block 19 substantially in parallel with the exhaust passage 38, and the water jacket 39 a is constituted by closing the concave portion 53 with a lid member 52. Is done.
[0042]
The lid member 52 has a vertically long plate shape as shown in FIG. 6 and is fixed to the side surface of the cylinder block 19 by a plurality of bolts 54. Openings 55 are formed in the lid member 52 at three locations in the longitudinal direction, and seal grooves 57 for mounting O-rings 56 are formed around the openings 55. In this example, as shown in FIG. 6, two of the three openings 55 of the lid member 52 are closed with an electrical component case 58 containing a rectifier with a regulator, and the remaining one is closed with a lid 59. .
[0043]
When the opening 55 is closed with the electrical component case 58 and the lid 59, the electrical component case 58 and the lid 59 are fixed with the bolts 60 with the O-ring 56 mounted in the seal groove 57. A seal groove 57 for mounting the O-ring 56 may be formed on the back side of the electrical component case 58, but in order to reduce the thickness and weight of the electrical component case 58 (typically a die-cast product). The seal groove 57 is preferably formed in the lid member 52. In addition to the configuration in which the O-ring 56 is attached to the recess 27 and the gap between the lid member 52 and the electrical component case 58 is sealed, it is also possible to seal using a packing or a gasket.
[0044]
The connection terminal 61 of the rectifier with a regulator is led out from the side portion of the electrical component case 58, and is connected to the above-described magneto power generator side via a wire harness (lead wire).
[0045]
In addition, a plurality of water-cooled fins 62 are integrally formed as a radiator on the back surface of the electrical component case 58. When the electrical component case 58 is attached to the lid member 52, the water-cooled fins 62 are used as cooling water in the water jacket 39a. Immerse. These water cooling fins 62 are arranged along the flow direction of the cooling water.
[0046]
Here, one specific example of the electrical component case 58 is shown in FIG. The electrical component case 58 in this example is substantially box-shaped, and the water cooling fins 62 are integrally formed on the back surface side in contact with the cooling water. A regulator-equipped rectifier 63 is installed at the bottom of the substantially box-shaped electrical component case 58, that is, inside the surface in contact with the cooling water. Further, a temperature sensor 64 such as a thermistor is disposed next to the rectifier 63 with a regulator. The electrical component case 58 is filled with a waterproof resin material 65 so as to cover the rectifier 63 with a regulator and the temperature sensor 64.
[0047]
The periphery of the exhaust passage 38 is a part where it is easy to detect a malfunction as a temperature change (for example, an absolute value or a temperature rise gradient) when a malfunction occurs in the cooling system and the cooling water is insufficient. In general, a temperature sensor is often arranged around the exhaust passage 38 alone. However, by housing the temperature sensor 64 in the electrical component case 58 as in this example, the number of parts and assembly man-hours can be reduced. This can reduce the weight and cost. It is also possible to detect overheating of the electrical component (rectifier 63 with regulator) itself.
[0048]
In the example shown in FIG. 7, a coupler 67 is provided at one end of the electrical component case 58 via a coupler connecting portion 66. From the side of the electrical component case 58, the rectifier 63 with regulator and the connection terminal 61 of the temperature sensor 64 are led out from the resin material 65 and connected to the coupler 67. As described above, the wire harness (lead wire) system is not used, but a coupling system using the coupler 67 can be used to make the system compact.
[0049]
Returning to the description of the lid member 52, as shown in FIG. 6, the lid member 52 is provided with an anode mounting portion 69 for mounting an anode 68 made of a sacrificial metal for cathodic protection. The anode mounting portion 69 includes a pedestal 70, and a through hole 71 is formed in the center thereof. As shown in FIG. 3, the anode support 72 is fixed to the pedestal 70, and the anode (sacrificial anode) 68 protruding from the anode support 72 is immersed in the cooling water in the water jacket 39 a from the through hole 71. The anode 68 is fixed to the anode support 72 so as to be replaceable via a bolt or the like.
[0050]
The electrical component case 58 is subjected to a surface treatment to prevent electrolytic corrosion (corrosion). However, the electrical component case 58 having the thin wall and the water-cooled fins 62 has the same potential as the lid member 52 to prevent further electrical corrosion (corrosion). The anode 68 made of a sacrificial metal such as zinc having a low potential is used. The metal member in contact with the seawater also generates a potential difference due to a subtle difference in the metal material, and the metal having a low potential elutes into the seawater and the corrosion proceeds. Therefore, the electrical component case 58 is obtained by sacrificing the anode 68. And corrosion of the lid member 52 can be prevented.
[0051]
As described above, the opening 55 is formed in the lid member 52 of the water jacket 39a, and the opening 55 is closed by the electrical component case 58 in which the rectifier 63 with a regulator is built in. Since the heat transfer path with the cooling water is very short and the electrical component case 58 is directly cooled by the cooling water, the cooling effect is excellent. In particular, since the exhaust passage 38 generates a large amount of heat, the water jacket 39a for cooling the exhaust passage has a large passage area so that a sufficient amount of cooling water is always stably supplied. By using 39a for cooling the rectifier 63 with a regulator, an efficient cooling effect can be obtained.
[0052]
In addition, the opening member 55 is not formed integrally with the lid member 52 or the like of the water jacket 39a, but an opening 55 is formed, and the opening 55 is closed using the electric component. As a result, it is possible to reduce the size.
[0053]
In addition, since a sufficient cooling effect can be obtained, the electrical component case 58 itself can be made much smaller and lighter than the conventional product. FIG. 8B shows the water-cooled electrical component case 58 described in this embodiment, and FIG. 8A shows a conventional air-cooled electrical component case. As is apparent from FIG. 8, the electrical component case 58 described in the present embodiment is formed only with the water cooling fins 62 that are smaller and less in number than the air cooling fins, and can be reduced in size and weight. Can do. In addition, since it is not necessary to secure a path for the cooling air to the air cooling fins, it is possible to increase the degree of freedom of arrangement of other parts and to arrange a cover for waterproofing and aesthetic appearance (design) etc. outside the case 58. is there.
[0054]
Furthermore, a plurality of openings 55 are formed in the lid member 52, and it is easy to cope with changing the electrical component to another type or increasing or decreasing the number of electrical components, and is highly versatile. For example, a part of the plurality of openings 55 may be closed by the electrical component case 58 and the rest may be closed by the lid 59, so that the number of electrical components can be arbitrarily attached. Further, the shape of the electrical component case 58 is not necessarily the same, and the shape and size of the electrical component case 58 itself can be obtained as long as the position and dimensions of the bolt hole of the bolt 60 and the flat surface that closely contacts the O-ring 56 are secured. The change is free. Therefore, it is easy to attach not only the rectifier with regulator 63 but also other types of electrical components.
[0055]
In particular, an outboard motor is a product that is manufactured and sold without specifying its use or hull, as described above, unlike engines such as motorcycles and automobiles. to differ greatly. For example, there are fish detectors, GPS (Global Positioning System), wireless, audio, electric winches, bilge pumps, lighting, etc. as electrical products for ships, and there are various types of business applications that require a large amount of power generation. If it exists, there are applications that use almost no lighting. The electricity generated by consuming the engine output is converted into thermal energy when it exceeds the regulator set voltage, and is therefore discarded.
[0056]
In the present embodiment, in order to prevent the above problems, for example, as shown in FIG. 5, a stator coil 50 is provided in half of all the poles 49 of the magneto power generator (shaded portion in the figure), and correspondingly. A rectifier with a regulator is provided as standard on the lid member 52. Then, if necessary, stator coils 50 are provided on all the poles 49 and a rectifier with a regulator is added to the lid member 52 if necessary.
[0057]
Or as shown in FIG. 9, the stator coil 50 of 1/2 of maximum electric power generation is equipped as standard, and the stator coil 50 is added according to a use.
[0058]
FIG. 10 shows a configuration example in the case of two-system charging. For example, a plurality (two) of power generation coils 101, 102 are provided, and a plurality (two) of regulator-equipped rectifiers 103, 104 are provided independently of each other. One of the rectifiers 103 and 104 with a regulator is connected to a battery 105 serving as an engine start and control power source, and the rest is connected to a battery 106 for a marine electrical product (accessory). Marine electrical appliances can be used without worrying about discharging (battery rising). In addition, the power generation amounts of the plurality of power generation coils 101 and 102 are not the same, and the number of coil windings can be changed to change the ratio of the power generation amount and the power generation characteristics. It is also possible to select a power generation coil connected to 106.
[0059]
(Other embodiments)
In the example shown in FIG. 11, a rectifier with a regulator is attached to a lid member 74 of a water jacket 73 attached to the crankcase 18. As shown in FIG. 3, a raised portion 75 extending in the vertical direction is formed on the front side of the engine 2, that is, on the front center of the crankcase 18. A recess 76 constituting the water jacket 73 is formed on the surface of the raised portion 75, and the water jacket 73 is configured by closing the recess 76 with a lid member 74.
[0060]
The lid member 74 has a vertically long plate shape like the lid member 52. Bolt holes 79 are formed at eight locations around the lid member 74, and the lid member 74 is fixed to the front surface of the crankcase 18 by providing bolts in these bolt holes 79. A cooling water intake part 77 of the water jacket 73 is provided at the lower part of the lid member 74, and a discharge part 78 is provided at the upper part.
[0061]
The lid member 74 has openings 55 formed at two locations in the longitudinal direction thereof, and as described in the above embodiment, the openings 55 are closed with an electrical component case 58 and a lid 59 containing a rectifier with a regulator. To do.
[0062]
In FIG. 3, for the sake of convenience, an example in which a regulator-equipped rectifier is attached to all of the water jacket 39a disposed around the left and right exhaust passages 38 and the water jacket 73 disposed in the crankcase 18 is illustrated. You may use only that part.
[0063]
As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention. For example, although an example of a V-type 6-cylinder engine has been described in the above embodiment, the present invention can be effectively applied to an in-line engine, and the number of cylinders is not limited.
[0064]
【The invention's effect】
As described above, according to the present invention, the opening is formed in the lid member of the water jacket, and the opening is closed by the case where the electrical component is installed, so the heat transfer path between the electrical component and the cooling water Since the electrical component case is directly cooled by the cooling water, the electrical component case is excellent in cooling effect, and is compact and highly versatile.
[Brief description of the drawings]
FIG. 1 is a side view showing an overall configuration example of an outboard motor 1. FIG.
FIG. 2 is a plan view of an engine block A disposed at the upper part of the outboard motor 1. FIG.
FIG. 3 is a plan view of the engine 2;
4 is a cross-sectional view taken along the line DD of FIG. 3;
FIG. 5 is a diagram for explaining a relationship between a magneto power generator and a rectifier with a regulator.
6 is a front view of a lid member 52. FIG.
7 is a diagram showing a specific example of an electrical component case 58. FIG.
8A and 8B are diagrams illustrating an electrical component case, in which FIG. 8A illustrates a conventional air-cooled electrical component case, and FIG. 8B illustrates a water-cooled electrical component case 58 described in the present embodiment. FIG.
FIG. 9 is a diagram for explaining another example of the magneto power generator.
FIG. 10 is a diagram illustrating a configuration example in the case of two-system charging.
11 is a front view of the crankcase 18. FIG.
[Explanation of symbols]
1 Outboard motor
2 Engine
18 Crankcase
19 Cylinder block
39 (39a), 73 water jacket
52, 74 Lid member
53, 76 Recess
55 opening
58 Electrical component case
59 lid
62 Water-cooled fins
63 Rectifier with regulator
64 Temperature sensor
65 Resin material
66 Coupler connection
67 coupler
68 Anode

Claims (9)

An electrical equipment mounting structure for an outboard motor equipped with a water jacket for cooling the engine,
The water jacket is configured by closing the concave portion with a lid member, while the lid member has a vertically long plate shape, and an opening is formed in the upper part in the longitudinal direction, and the electrical component in which the electrical component is installed is formed in the opening. A through hole for closing the sacrificial metal in the cooling water in the water jacket is formed below the opening, and the through hole is closed with a sacrificial metal support to which the sacrificial metal is attached. electrical component mounting structure of the outboard motor, characterized in that configuration was.   2. The outboard motor electrical equipment mounting structure according to claim 1, wherein the water jacket is for cooling an exhaust passage disposed around the exhaust passage of the engine.   2. The outboard motor electrical equipment mounting structure according to claim 1, wherein the water jacket is for cooling a crankcase disposed in a crankcase of the engine.   The outboard motor electrical component mounting structure according to any one of claims 1 to 3, wherein a plurality of the openings are formed in the lid member. The electric component mounting structure for an outboard motor according to any one of claims 1 to 4 , wherein a temperature sensor is installed in the electric component case together with the electric component. The electric component mounting structure for an outboard motor according to any one of claims 1 to 5 , wherein the electric component case is integrally formed with a radiator that is immersed in cooling water in the water jacket. . The outboard motor electrical equipment according to any one of claims 1 to 6 , wherein the electrical equipment case is substantially box-shaped, and the electrical equipment installed at the bottom of the electrical equipment case is covered with a waterproof resin material. Product mounting structure. The outboard motor electrical component mounting structure according to any one of claims 1 to 7 , wherein the electrical component case is provided with a coupler connected to the electrical component.   5. The electric component mounting structure for an outboard motor according to claim 4, wherein at least two of the plurality of openings are respectively closed by an electric component case provided with a rectifier, and the rectifiers are separated from each other. .

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