The present invention relates to a construction machine.
In a construction machine described in Patent Document 1, a fuel tank is arranged adjacent to the front of an engine arranged at a rear portion, and a battery and a fuse box are arranged at the side of the fuel tank.
In the construction machine described in Patent Document 1, not only a harness connecting an engine-related electric device to the battery and the fuse box is long, but also it is hard to say that the space of an engine room housing the engine is effectively utilized.
An object of the present invention is to provide a construction machine of which the component layout efficiency in an engine room is improved.
The construction machine of the present invention includes an engine, a cooling fan, a hood, a heat exchanger, a partition plate, a battery, and a fuse box. The engine has an electric device. The cooling fan is assembled to the engine. The hood has an exhaust opening. The heat exchanger is arranged between the cooling fan and the exhaust opening. The partition plate forms an air discharge passage between the heat exchanger and the exhaust opening. The battery is arranged in a space below the partition plate. The fuse box is connected to a circuit connecting the electric device and the battery to each other. The fuse box is arranged between the battery and the partition plate.
According to the present invention, the construction machine of which the component layout efficiency in the engine room is improved is provided.
An embodiment of the present invention will be described with reference to the drawings. Note that in the drawings, the same reference numerals are used to represent the same or equivalent elements and description thereof will not be repeated.
A construction machine 100 according to the embodiment will be described with reference to
As shown in
The lower traveling body 110 includes a traveling mechanism 112 and a blade 114. The traveling mechanism 112 is of a crawler type. The blade 114 is used for a soil discharging work and a ground leveling work.
The upper turning body 120 includes a hood 121, a steering unit 122, a canopy 123, and a work machine 124.
The hood 121, the steering unit 122, and the canopy 123 are arranged on an upper portion of the upper turning body 120. The hood 121 forms a substantially semi-cylindrical exterior of the upper turning body 120. The steering unit 122 enables an operator to steer the construction machine 100. The canopy 123 is provided as a canopy for the operator.
The work machine 124 is arranged on the front side of the upper turning body 120. The work machine 124 includes a boom 124a, an arm 124b, and a bucket 124c. The boom 124a, the arm 124b, and the bucket 124c are driven by a hydraulic device in a well-known manner.
Next, the appearance of a right rear portion of the upper turning body 120 will be described with reference to
As shown in
Next, component arrangement in an engine room 300 will be described with reference to
As shown in
The engine 302 is a power source for the construction machine 100, and, for example, is a diesel engine. The engine 302 has an electric device. The cooling fan 304 and a not-shown hydraulic oil pump are assembled to an output shaft of the engine 302. The radiator 306 is arranged between the cooling fan 304 and the exhaust opening 200, and is supplied with coolant for the engine 302. Air sucked through a not-shown suction opening by the suction force of the cooling fan 304 passes through the engine 302, and exchanges heat with the radiator 306. The lower partition plate 308a and the upper partition plate 308b are plates having a substantially triangular shape. One side of each of the lower partition plate 308a and the upper partition plate 308b is curved so as to contact the inner surface of the hood 121. The hydraulic oil tank 310 is arranged adjacent to the lower partition plate 308a and the upper partition plate 308b on the machine body front side, and stores hydraulic oil discharged from the hydraulic oil pump.
As shown in
The battery 312 is arranged in a space below the lower partition plate 308a, and supplies power to the electric device of the engine 302. The fuse box 314 is attached to the surface, which faces downward, of the lower partition plate 308a at a position adjacent to the hood 121, and is connected to a circuit connecting the electric device of the engine 302 and the battery 312 to each other.
As shown in
The fuse box 314 has a center portion 314a, a first attachment portion 314b at one end, and a second attachment portion 314c at the other end. The fuse box 314 is attached to the surface, which faces downward, of the lower partition plate 308a through the first attachment portion 314b and the second attachment portion 314c, and the center portion 314a is separated from the lower partition plate 308a in order to dissipate heat.
The fuse box 314 houses a first fuse and a second fuse. The first fuse is connected to a circuit that discharges the current of the battery 312. The first fuse includes a fuse connected to a circuit of a starting motor for starting the engine 302. Moreover, the first fuse includes a fuse connected to a circuit of a glow plug for easily starting the engine 302 in a cold state. The second fuse is connected to a circuit that charges the battery 312. The second fuse includes a fuse connected to a circuit of an alternator which is a generator.
Next, another example of the arrangement of the battery 312 and the fuse box 314 will be described with reference to
As shown in
As shown in
According to the above-described embodiment, the lower partition plate 308a and the upper partition plate 308b form the air discharge passage 307, and the battery 312 is arranged in the space below the lower partition plate 308a. Moreover, the fuse box 314 is arranged between the lower partition plate 308a and the battery 312. Thus, the construction machine 100 of which the component layout efficiency in the engine room 300 is improved is provided. In addition, the fuse box 314 is easily accessible from the outside, and therefore, maintainability is improved.
The embodiment of the present invention has been described above with reference to the drawings. Note that the present invention is not limited to the above-described embodiment and can be implemented in various forms without departing from the gist of the invention. In addition, various aspects of the invention can be made by appropriately combining a plurality of components disclosed above in the embodiment. For example, some components may be omitted from all the components described in the embodiment. For the sake of easy understanding, the drawings schematically show each component, and, e.g., the number of each component shown may be different from an actual number for the sake of convenience in preparation of the drawings. In addition, each component described above in the embodiment is an example and is not particularly limited, and various changes can be made without substantially departing from the advantageous effects of the present invention.
In the embodiment, the heat exchanger arranged between the cooling fan 304 and the exhaust opening 200 is the radiator 306, but the present invention is not limited thereto. The heat exchanger may be an oil cooler for cooling hydraulic oil.
In the embodiment, the fuse box 314 is attached to the side surface of the hydraulic oil tank 310, but the present invention is not limited thereto. In a case where a fuel tank storing fuel for the engine 302 is located adjacent to the battery 312, the fuse box 314 may be attached to the side surface of the combustion tank.
The present invention is applicable to the field of construction machines.
Number | Date | Country | Kind |
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2020-212336 | Dec 2020 | JP | national |
Filing Document | Filing Date | Country | Kind |
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PCT/JP2021/044834 | 12/7/2021 | WO |