JPH10223124A - Fuse-fitting structure for engine generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fit a large-capacity fuse, such as a main fuse by providing a fuse box for nearly horizontally fitting the fuse to an engine room, forming a leg section on the fuse box, inserting it into a coupling hole formed at the bottom section of a case body, and fixing the fuse box to the case body with bolts. SOLUTION: When a fuse box, constituted of a box base 71 opened upward and a lid 72 fitted/removed to/from the upper section of the box base 71, is to be fitted to a case body (undercase) 21, the fuse box is overlapped on the bottom section of the case body 21, a coupling section 71c of a leg section 71a formed on the fuse box is inserted into a coupling hole 21a formed on the case body 21, and the fuse box is fixed to the case body 21 with bolts. When a large-capacity fuse 77 is to be fitted to the fuse box, the lid 72 is opened, the fuse 77 is mounted from above between a pair of nearly horizontal terminal boards 75, and the fuse 77 is fixed with screws 76. The fuse 77 can be fitted nearly horizontally, and the workability regarding replacement can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a fuse mounting structure for an engine with a generator.

[0002]

2. Description of the Related Art Conventional outboard motors include, for example,
In the divided holder, a tubular fuse for an automobile standardized in an automobile standard (abbreviated to JASO) by the Society of Automotive Engineers of Japan is used.
In addition, there is also employed one in which a blade-type fuse for an automobile is similarly attached to a vertical plate. The maximum capacity of these fuses was 20-40 amps.

[0003]

As the outboard motors have become larger in recent years, the required power has been increased, and accordingly, the generators have been required to be made larger. And with this,
The demand for larger fuses has increased.

An object of the present invention is to provide a specific configuration for providing a fuse having a large capacity such as a main fuse.

[0005]

According to one aspect of the present invention, an engine with a generator is housed in a case body and an engine cover detachably attached to the case body. And a fuse box for mounting the fuse substantially horizontally is provided in the engine room.

A large fuse, such as a main fuse, can be attached to a fuse box and easily stored in an engine room. Further, since the fuse can be mounted substantially horizontally, the fuse does not fall out of the fuse box during the replacement work, and the replacement workability is good.

The invention according to claim 2 is characterized in that the fuse box is attached to the case body.

[0008] Since the fuse box is attached to the case body in the engine room, the space of the case body can be effectively used.

According to a third aspect of the present invention, a leg portion extending downward is formed in the fuse box, and a fitting hole is formed in the bottom of the case body so that the fuse box is overlapped with the bottom of the case body. The part is fitted into the fitting hole, and the fuse box is further bolted to the case body.

By fitting the leg portion of the fuse box into the fitting hole of the case body, the fuse box can be easily positioned on the case body, and the bolting workability is good. Further, since the legs are fitted into the fitting holes in addition to bolting the fuse box, the fuse box is unlikely to be displaced from the case body due to vibration of the engine or the like, which is advantageous against vibration.

The invention according to claim 4 is characterized in that the fuse box is attached to the engine.

Since the fuse box is attached to the engine in the engine room, the space around the engine can be effectively used.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a side view of an outboard motor according to the present invention. An outboard motor 1 is mounted on a mount case (engine support case) 2 as an engine mounting member, and is connected to a vertical multi-cylinder engine 3 which is bolted and connected. An extension case 4 which is bolted under the mount case 2 to form an exhaust expansion chamber, a vertical drive shaft 5 housed in the extension case 4 and transmitting power from the engine 3, and attached to a lower portion of the extension case 4. A gear case 6, a bevel gear set and a dog clutch device 7 housed in the gear case 6 for switching between forward and backward, a propeller 8 connected to the bevel gear set and rotated by the transmitted power, an extension case 4 and a gear case 6. Cooling water screen 11, cooling water supply pipe 12, water pump The outboard motor body 1A consisting of 3 or the like, supporting the outboard motor mounting means 15 elastically through a mount rubber (not shown), is obtained by coupling.

The outboard motor mounting means 15 is a metal fitting for fixing the outboard motor main body 1A to the hull S, and swings the outboard motor main body 1A right and left in a plan view around a swivel shaft 16; The outboard motor main body 1A including the swivel shaft 16 around the center 17 can be flipped clockwise in the drawing. Outboard motor body 1
A further shows a lower undercase 21 for housing the engine 3 and an upper engine cover 22, and an undercover 2 that covers the periphery of the mount case 2 and the upper periphery of the extension case 4 immediately below the undercase 21.
3 was provided.

More specifically, the under case 21 is mounted on the upper portion of the mount case 2 and bolted, and the engine cover 22 is mounted on the upper portion of the under case 21 and detachably mounted by the engaging / disengaging device 25. 21
The upper part of the under cover 23 is bolted to the lower part of the under cover. Under case 21 and engine cover 2
Reference numeral 2 serves to form an engine room (engine housing case), and the undercover 23 serves as a decorative cover. 24 is an oil pan.

FIG. 2 is a longitudinal sectional view of a vertical type multi-cylinder engine according to the present invention. The vertical multi-cylinder engine 3 is composed of, for example, a water-cooled four-cycle (four-cylinder) engine, and the axis of each of the cylinders 31... The shaft 32 is vertically oriented, and the joint surface between the cylinder block 33 and the cylinder head 34 and the joint surface between the cylinder head 34 and the head cover 35 are substantially vertical. And the engine 3 is an outboard motor 1
(The rear of the hull S in the propulsion direction shown in FIG.
The cylinder head 34 and the head cover 35 are arranged to face toward the left (in the left direction in the figure). 36 is a crankcase bolted to the cylinder block 33, 37 ...
Are pistons in the cylinders 31.

The crankshaft 32 is provided with a first pulley 32a for driving a vertically oriented camshaft 38 upward (one side of the engine 3), a second pulley 32b, and a second pulley 32 for driving an AC generator 41. A three pulley 32c is provided, a flywheel 43 with a ring gear 43a is attached to a lower portion (the other side of the engine 3), and the flywheel 43 is connected to a starter motor (not shown) by the ring gear 43a. The under case 21 is the mount case 2
Are fixed with bolts 28 via rubber cushions 27 for vibration isolation. In the drawing, reference numeral 22a denotes an intake port above the engine cover 22, 39 denotes a first belt, 40 denotes a second belt, 42.
Is a third belt, and 44 is a belt cover. Reference numeral 44a denotes a ventilation port above the belt cover 44, and the belt cover 4
4 from the belt cover 44 to the engine cover 22.
Ventilation outside. 45 is the crankcase 3
Reference numeral 6 denotes an oil inlet provided at an angle, 46 denotes an oil filter, 47 denotes an intake silencer, and 48 denotes a throttle valve device.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2, and shows that the head cover 35 is attached to the tip of the cylinder head 34 at a position along the axis of the camshaft 38.
Since such a head cover 35 has a large depth, it is relatively large. Cylinder head 34 and head cover 35
The valve operating chamber 50 includes a valve operating mechanism 51. The valve operating mechanism 51 supports the camshaft 38 with the cylinder head 34 and the half-shape camshaft holder 52. The configuration is such that the rocker shafts 53 and 54 are supported by the camshaft holder 52, and the valves 55 and 56 are driven by a rocker arm (not shown) or the like. In the figure, 57, 5
8, 59, 59 are bolts.

The deep dish-shaped under case 21 has a wall portion facing a part of a vertically long (long in the front and back direction of the figure) head cover 35, and is open to the front and rear at a size corresponding to the head cover 35 at this wall portion. This is provided with a notch 21a. Specifically, the peripheral wall of the under case 21 is provided with bolts 5 for attaching the head cover 35 to the cylinder head 34.
7 and 58, which have notches 21a opened in the axial direction,
The notch 21a is covered with a removable lid 60. Width dimension L ₁ of the cutout portion 21a, the head cover 3
Greater than the width L ₂ of 5.

The lid 60 has a structure that can be fitted from the inside of the under case 21, and the outer surface of the lid 60 is substantially flush with the outer surface of the peripheral wall of the under case 21. In other words, both sides of the lid 60 and the lower edge (back surface direction in the figure) of the edge 60a are applied to the peripheral wall of the under case 21 from inside. The under case 21 as a case body has a fuse box 70 attached to the bottom, and the fuse box 70 is located near the notch 21a.

FIG. 4 is a view taken in the direction of arrow 4 in FIG.
1a is a notch opened upward. Upper surface 60 of lid 60
b is flush with the upper surface 21b of the peripheral wall of the under case 21, and these upper surfaces 60b and 21b are
Is closely contacted with the lower surface 22b of the base via a packing (including a seal rubber) 61.

The lid 60 has a structure in which it is bolted to the inside of the under case 21 from above. Specifically, the lid 60 has two upper brackets 60c formed on the upper portions on both sides.
60c, and two lower brackets 60d, 60d formed below the upper brackets 60c, 60c near the center in the width direction. In addition, under case 21
Has two upper receiving portions 21c, 21c formed inside and two lower receiving portions 21d, 21d. And
The upper brackets 60c, 6 are attached to the upper receiving portions 21c, 21c.
0c is placed, the lower brackets 60d, 60d are aligned with the lower receiving portions 21d, 21d, and the lower brackets 60d are connected with bolts 62, respectively.

The height at which the lid 60 is attached to the undercase 21 is determined by the height of the contact surface between the upper receiving portions 21c, 21c and the upper brackets 60c, 60c. Therefore, it is easy to manage the upper surfaces 60b and 21b at the same height. Therefore, since the upper surfaces 60b and 21b are flush with each other, the sealing performance with the engine cover 22 can be sufficiently ensured. In other words, since the upper surfaces 60b and 21b are flush with each other and there is no unnecessary step, there is no place where the edge stands up to the seal, and the sealing performance between the engine covers 22 can be sufficiently ensured. Also, the seal is not unnecessarily damaged.

After the engine cover 22 has been removed, the bolts 62 in the under case 21 can be removed from above, and the lid 60 can be removed. Therefore, the bolted portion between the under case 21 and the lid 60 is not visible from the outside, so that the appearance is good. In addition, the workability of attaching and detaching the lid 60 is good even though the appearance is enhanced.

Returning to FIG. 2, the mounting level H of the bolts 57 and 58 for mounting the head cover 35 will be described.
₂ is in the range of the notch 21a of the under case 21. Specifically, the level of the upper surface 60b of the lid 60 is H _1, than this attachment level lower bolts 57 and 58 is H _2, the lower surface of the cutout portion 21a of the level H ₂ is under case 21 High. The lower end of the cylinder head 34 and the lower end of the head cover 35 are higher than the lower surface of the notch 21a.

FIGS. 5A to 5C are configuration diagrams of a fuse box according to the present invention, wherein FIG. 5A is a plan view, FIG. 5B is a plan view with a lid removed, and FIG. a) cc
It is a line sectional view. Fuse box 70 having a rectangular shape in plan view
Is a box substrate 71 opened upward and the box substrate 7
And a lid 72 which is attached to and detached from the upper part of the upper part 1. The box board 71 has a pair of substantially horizontal terminal plates 75, 75 for connecting the external cords 73, 73 with screws 74, 74, and is connected substantially horizontally between the terminal plates 75, 75 with screws 76, 76. And a built-in fuse 77. Further, the box board 71 has one leg 71a extending downward from the lower surface.
And two brackets 7 extending laterally from the left and right sides.
1b and 71b are integrally formed. Leg 71
a has a small-diameter fitting portion 71c at the lower end. Fuse 77
For example, a plate-type fuse for an automobile standardized in an automobile standard (abbreviated to JASO) by the Society of Automotive Engineers of Japan is used. Note that the "automotive fuse" does not limit the application, but secures the capacity specified therein, and is, for example, a fuse having a capacity of 90 amperes. The lid 72 contains a spare fuse 78 on the back surface. 79 is O
It is a ring.

FIG. 6 is a sectional view of a mounting portion of the fuse box according to the present invention.
One first boss 21e and two second bosses 21f, 21f are formed, a fuse box 70 is placed on the bottom of the under case 21, and a leg 71a is attached to the first boss 21e.
By mounting the brackets 71b, 71b on the second bosses 21f, 21f, the fuse box 70 is mounted substantially horizontally on the bottom of the under case 21. For this reason,
The fuse 77 (see FIG. 5) is also mounted substantially horizontally.

More specifically, the first boss 21e has a fitting hole 21g formed at the upper end thereof, and a bush (vibration isolating material) 81 made of an elastic material such as rubber is fitted into the fitting hole 21g. The fitting portion 71c of the leg portion 71a is fitted from above. Meanwhile, the bracket 71
The bush (vibration-proof material) 82, 82 made of an elastic material such as rubber is fitted into the bolt holes 71d, 71d, and the second boss 21 is inserted through these bushes 82, 82.
f, 21f are fixed to the upper ends by bolts 83, 83 (or screws). By the way, the leg 71a
Is the length of the bracket 71 on the second bosses 21f, 21f.
b and 71b are overlapped, and the fitting portion 71 is inserted into the fitting hole 21g.
The dimensions are set so that c is fitted. In the figure, 84 and 84 are spacers, and 85 and 85 are flat washers.

Next, the procedure for mounting the fuse box and the procedure for mounting the fuse will be described with reference to FIG. FIG. 7 is an explanatory diagram of the operation of the fuse box according to the present invention. To mount the fuse box 70, first, the fuse box 70 is attached to the bottom of the under case 21.
And fitting holes 21g of the first boss 21e (see FIG. 6)
The fitting part 71c of the leg part 71a is fitted to. Next, the brackets 71b, 71b are fixed to the upper ends of the second bosses 21f, 21f with bolts 83, 83, respectively.
Complete the installation work.

As described above, since the fuse box 70 is attached to the under case 21 in the engine room, the space of the under case 21 can be effectively used. Further, by fitting the leg portion 71a of the fuse box 70 into the fitting hole 21g of the under case 21,
The fuse box 70 can be easily positioned on the under case 21, and the bolting workability is good. Further, since the leg portion 71a is fitted into the fitting hole 21g, not only by fixing the fuse box 70 with bolts, the fuse box 70 is hardly displaced from the under case 21 due to vibration of the engine or the like, and It is advantageous.

On the other hand, the fuse 7 is
To mount the terminal board 7, first, the lid 72 is opened, and the terminal board 7 is opened.
Fuse 77 is stacked from above on between
It is fixed at 76 to complete the mounting work. in this way,
Since the fuse 77 can be mounted substantially horizontally, the fuse 77 does not fall out of the fuse box 70 during the replacement work, and the replacement workability is good. In the figure, 86,
86 is a flat washer, and 87 and 87 are spring washers.

FIG. 8 is a rear view of the vertical type multi-cylinder engine according to the present invention, and is a view of the vertical type multi-cylinder engine 3 shown in FIG. Shows a figure. In this way, a large-capacity fuse 77 (see FIG. 5) such as a power supply main fuse can be attached to the fuse box 70 and easily stored in the engine room. In the figure, reference numeral 91 denotes a starter motor, 92 denotes an electrical box, and 93 ... spark plugs. Engine 3 is a cooling water path (not shown)
, A pressure control valve 94 and two thermostats 95 and 96 are provided.

By the way, the fuse box 70 may be attached to an arbitrary part of the engine 3 in the engine room. Can also.

FIG. 9 is a view taken in the direction of arrow 9-9 in FIG. The box board 71 of this modified example has, for example, brackets 71b, 7
1b, and these brackets 71b, 71b can be fixed to the side wall of the cylinder block 33 with bolts 83. Also in this modification, the fuse box 70
Can be mounted substantially horizontally, so that the fuse 77 (see FIG. 5) can be mounted substantially horizontally in the engine room.

FIG. 10 is a circuit diagram around the generator according to the present invention. The fuse 77 is connected between the AC generator 41 and the battery 97, and shows that the fuse 77 plays the role of a main fuse. . In the figure, 98 are various loads for the outboard motor, and 99 is a fuse connected between the battery 97 and each load 98.

In the above embodiment, the case for mounting the fuse box 70 is not limited to the under case 21. Fuse box 70
The type, shape, size, and number of the fuses 77 to be attached to the device are arbitrary.

[0037]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect of the present invention, an engine room for accommodating an engine with a generator is formed by a case body and an engine cover detachably attached to the case body, and a fuse is disposed substantially horizontally in the engine room. A fuse box to be attached is provided.

A large fuse such as a main fuse can be attached to a fuse box and easily stored in an engine room. Further, since the fuse can be mounted substantially horizontally, the fuse does not fall out of the fuse box during the replacement work, and the replacement workability is good.

The invention according to claim 2 is characterized in that the fuse box is attached to the case body.

Since the fuse box is attached to the case body in the engine room, the space of the case body can be effectively used.

According to a third aspect of the present invention, the fuse box is formed with a leg extending downward, while a fitting hole is formed in the bottom of the case body so that the fuse box is overlapped with the bottom of the case body. The part is fitted into the fitting hole, and the fuse box is further bolted to the case body.

By fitting the leg portion of the fuse box into the fitting hole of the case body, the fuse box can be easily positioned on the case body, and the workability of bolting is good. Further, since the legs are fitted into the fitting holes in addition to bolting the fuse box, the fuse box is unlikely to be displaced from the case body due to vibration of the engine or the like, which is advantageous against vibration.

According to a fourth aspect of the present invention, the fuse box is mounted on the engine.

Since the fuse box is attached to the engine in the engine room, the space around the engine can be effectively used.

[Brief description of the drawings]

FIG. 1 is a side view of an outboard motor according to the present invention.

FIG. 2 is a side sectional view of a vertical multi-cylinder engine according to the present invention.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a view taken in the direction of arrow 4 in FIG. 2;

FIG. 5 is a configuration diagram of a fuse box according to the present invention.

FIG. 6 is a sectional view of a mounting portion of a fuse box according to the present invention.

FIG. 7 is a diagram illustrating the operation of the fuse box according to the present invention.

FIG. 8 is a rear view of the vertical multi-cylinder engine according to the present invention.

9 is a view taken in the direction of arrows 9-9 in FIG. 8;

FIG. 10 is a circuit diagram around a generator according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outboard motor, 3 ... Engine, 21 ... Case body (under case), 21g ... Fitting hole, 22 ... Engine cover, 3
3 ... Cylinder block, 41 ... AC generator, 70 ... Fuse box, 71 ... Box board, 71a ... Leg part, 7
1b: bracket, 71c: fitting portion, 77: fuse,
83 ... bolt.

 ──────────────────────────────────────────────────の Continued on front page (72) Inventor Kazuhiro Sato 1-4-1 Chuo, Wako-shi, Saitama Pref.

Claims (4)

[Claims] 1. A fuse box comprising a case body and an engine cover detachably attached to the case body to form an engine room for accommodating an engine with a generator, and a fuse box mounted substantially horizontally in the engine room. A fuse mounting structure for an engine with a generator, comprising: 2. The fuse mounting structure for an engine with a generator according to claim 1, wherein said fuse box is mounted on said case body. 3. The fuse box is formed with a leg extending downward, and a fitting hole is formed in the bottom of the case body so that the fuse box is overlapped with the bottom of the case body and the leg is fitted. 3. The fuse mounting structure for an engine with a generator according to claim 2, wherein the fuse box is fitted into the hole, and the fuse box is further bolted to the case body. 4. The fuse mounting structure for an engine with a generator according to claim 1, wherein said fuse box is mounted on said engine.